Issue Information ‐ TOC

Journal of Surgical Oncology, Volume 117, Issue 4, Page 540-544, March 15, 2018.


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Issue Information ‐ Ed Board

Journal of Surgical Oncology, Volume 117, Issue 4, Page 539-539, March 15, 2018.


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Cover Image, Volume 117, Number 4, March 15, 2018

Journal of Surgical Oncology, Volume 117, Issue 4, Page i-i, March 15, 2018.


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Totally minimally invasive esophagectomy after neoadjuvant chemoradiotherapy: Long‐term oncologic outcomes

Journal of Surgical Oncology, Volume 117, Issue 4, Page 651-658, March 15, 2018.


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Impact of timing on soft tissue augmentation during implant treatment: A systematic review and meta‐analysis

Clinical Oral Implants Research, EarlyView.


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Expression of protein arginine methyltransferase‐5 in oral squamous cell carcinoma and its significance in epithelial‐to‐mesenchymal transition

Pathology International, EarlyView.


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Anti‐thymocyte globulin improves survival free from relapse and graft‐versus‐host disease after allogeneic peripheral blood stem cell transplantation in patients with Philadelphia‐negative acute lymphoblastic leukemia: An analysis by the Acute Leukemia Working Party of the EBMT

Cancer, EarlyView.


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The pot dealer state harms patients with cancer

Cancer, EarlyView.


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Reply to The pot dealer state harms patients with cancer

Cancer, EarlyView.


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HOTAIR gene polymorphisms contribute to increased neuroblastoma susceptibility in Chinese children

Cancer, EarlyView.


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Surgery and Anesthesia Management for Intraoral Synechia: A Case Report.

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Surgery and Anesthesia Management for Intraoral Synechia: A Case Report.

Iran J Otorhinolaryngol. 2018 Mar;30(97):117-119

Authors: Gharavifard M, Kashani I, Joudi M, Sharifian M, Sayedi SJ, Mohammadipanah B, Jamali-Behnam F

Abstract
Introduction: Intraoral synechia is a rare congenital condition, generally associated with other maxillo-facial malformations. We present a neonate with congenital intraoral bilateral synechia without any other facial anomalies.
Case Report: In this paper, we present a 19-day-old male neonate with congenital intraoral bilateral synechia without any other facial anomalies. We review the literature to discuss the surgical and anesthesia management of this rare congenital disease.
Conclusion: The disease manifested with a wide spectrum of symptoms. Most cases need surgery and airway management. In patients with a low risk of bleeding or a compromised airway, it is possible to manage them with face mask-inhalation anesthesia and maintain spontaneous breathing.

PMID: 29594080 [PubMed]

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Sudden Bilateral Sensorineural Hearing Loss Secondary to Cerebral Venous Thrombosis.

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Sudden Bilateral Sensorineural Hearing Loss Secondary to Cerebral Venous Thrombosis.

Iran J Otorhinolaryngol. 2018 Mar;30(97):113-116

Authors: Ishak MN, Nik-Abdul-Ghani NM, Mohamad I

Abstract
Introduction: Sudden sensorineural hearing loss (SSNHL) is an important otological emergency. Up to 90% of the cases are idiopathic. Cerebral venous thrombosis (CVT) is an extremely rare identifiable cause as it only represents 0.5% of all strokes.
Case Report: In this paper, an unusual case of bilateral SSNHL secondary to bilateral CVT with rapid and complete recovery is reported. The patient presented with sudden bilateral hearing loss associated with some neurological symptoms. Initial computed tomography (CT) venography revealed a CVT of bilateral transverse sinuses. The patient was started on an anticoagulant and imaging was repeated after five days, revealing the absence of the thrombosis. Serial pure tone audiometry (PTA) showed complete recovery of bilateral hearing within 10 days.
Conclusion: Early detection and intervention may fasten hearing recovery and improve the quality of life. The immediate restoration of venous blood flow and intracranial pressure may lead to the complete recovery of bilateral hearing loss.

PMID: 29594079 [PubMed]

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Results of Type I Tympanoplasty Using Fascia with or without Cartilage Reinforcement: 10 Years' Experience.

Related Articles

Results of Type I Tympanoplasty Using Fascia with or without Cartilage Reinforcement: 10 Years' Experience.

Iran J Otorhinolaryngol. 2018 Mar;30(97):103-106

Authors: Kouhi A, Khorsandi Ashthiani MT, Jalali MM

Abstract
Introduction: There remains controversy about the optimal kind of graft to repair tympanic membrane. The purpose of this study was to evaluate the anatomical and auditory outcomes of type I tympanoplasty using fascia with or without cartilage reinforcement.
Materials and Methods: This retrospective cohort study was conducted from 2005 to 2015. All cases were surgically treated by a single surgeon. We excluded cases in which the etiology of chronic otitis media was cholesteatoma. According to the use of cartilage reinforcement in the posterosuperior part of the graft, patients were divided into two groups, and the results of anatomical and auditory evaluation were compared between the two groups. The anatomical outcome was grafting success and the auditory outcome was improvement of air bone gap (ABG).
Results: A total of 320 patients were classified in Group A (tympanoplasty with fascia temporalis only) and 346 were in Group B (tympanoplasty with cartilage reinforcement). All patients were followed for at least 2 years. The overall success rate in the two groups was 91.6% and 93.4%, respectively (P=0.3). The most common cause of failure in the two groups was re-perforation (5.6% and 3.8%, respectively). The improvement of ABG in two groups was 18.5 dB and 3.2 dB, respectively. The difference between two groups was statistically significant (P<0.001).
Conclusion: In patients with dry perforation of the tympanic membrane, the anatomical success with tympanoplasty with fascia only or with cartilage reinforcement was similar. However, hearing improvement in the fascia only group was greater than in the group undergoing cartilage reinforcement.

PMID: 29594077 [PubMed]

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Translation, Cross-Cultural Adaptation, Validation and Reliability of the Northwestern Dysphagia Patient Check Sheet (NDPCS) in Iran.

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Translation, Cross-Cultural Adaptation, Validation and Reliability of the Northwestern Dysphagia Patient Check Sheet (NDPCS) in Iran.

Iran J Otorhinolaryngol. 2018 Mar;30(97):97-101

Authors: Bakhtiyari J, Salmani M, Noruzi R, Sarraf P, Barzegar E, Mirmohammadkhani M

Abstract
Introduction: Speech and language therapists (SLTs) require proper tools to detect dysphagia in the early stages. One of these screening tools is the Northwestern Dysphagia Patient Check Sheet (NDPCS). However, this tool needs to be adapted, validated, and shown to be reliable for the Persian culture. The aim of the present study was to report the validity and reliability of the Persian NDPCS (P-NDPCS).
Materials and Methods: The NDPCS has 28 items and five sections. Beaton's guidelines were followed in terms of the translation process. To report the content validity index (CVI) and the content validity ratio (CVR), eight SLTs experienced in swallowing disorders examined the content and face validities of the P-NDPCS in terms of the quality of translation, fluency, understandability, and the cultural context. In total, 140 patients with neurogenic and mechanical dysphagia were evaluated using the P-NDPCS. Internal consistency reliability was investigated using the Kuder-Richardson formula 20. The interclass correlation coefficient (ICC) was used for test-retest reliability.
Results: The P-NDPCS preserved the 28 items and the five categories of the original version. However, semantic and food adjustments were applied due to cultural differences. The scoring system was changed from safe/unsafe to yes/no for four subsections and to normal/abnormal for the oromotor section. Food requirements were also changed. The CVR and CVI were both 75%. The P-NDPCS was shown to have good content validity. The internal reliability was 0.95, indicating excellent reliability.
Conclusion: The equivalence between the original version of the NDPCS and the P-NDPCS was preserved. Our findings indicate that the P-NDPCSis a valid and reliable screening tool for the diagnosis of dysphagia in the early phase.

PMID: 29594076 [PubMed]

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Islamic Attitudes and Rhinoplasty.

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Islamic Attitudes and Rhinoplasty.

Iran J Otorhinolaryngol. 2018 Mar;30(97):91-96

Authors: Bakhshaee M, Asghari M, Sharifian MR, Jafari Ashtiyani S, Rasoulian B

Abstract
Introduction: Although the psychological aspects of rhinoplasty have been fully investigated in the medical literature, the religiosity of rhinoplasty candidates has not been taken into consideration.
Materials and Methods: In this cross-sectional study, the religious attitudes of 157 rhinoplasty candidates were compared with those of 74 subjects who had not requested rhinoplasty. A domestic validated reliable questionnaire was completed by all subjects to classify them with respect to religious attitude. Other factors such as age, sex and economic and educational status were also taken into consideration. From the surgeon's perspective, subjects were put into three categories: subjects who had a relative indication for rhinoplasty (Category.1), subjects with a well-defined nose based on accepted standards of facial aesthetic analysis (Category.2) and finally subjects with a severely deformed nose, such as deviated nose or nasal cleft lip deformity (Category.3).
Results: The mean age among subjects was 28.63 ± 7.05 years, and the majority were female (87%). The two groups of participants (those who did and did not express a desire for rhinoplasty) were analyzed from the point view of age, sex, economic and educational status. The economic and educational status of the two groups did not differ significantly (P>0.05). The religious score showed a significant difference between those who were interested in rhinoplasty (122.75±23.49) and those were not interested (138.78±21.85; P<0.001).
Conclusion: Religion may affect a patient's decision to undergo rhinoplasty surgery, such that persons with a higher religious attitude tend to undertake it less often. However, individuals with major nasal deformities tend to decide undertake the surgery, irrespective of religious beliefs.

PMID: 29594075 [PubMed]

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Effect of Early Vestibular Rehabilitation on Vertigo and Unsteadiness in Patients with Acute and Sub-Acute Head Trauma.

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Effect of Early Vestibular Rehabilitation on Vertigo and Unsteadiness in Patients with Acute and Sub-Acute Head Trauma.

Iran J Otorhinolaryngol. 2018 Mar;30(97):85-90

Authors: Jafarzadeh S, Pourbakht A, Bahrami E, Jalaie S, Bayat A

Abstract
Introduction: Vestibular rehabilitation is a treatment option for the management of vertigo and unsteadiness, which are very common in head trauma patients and more challenging in the early months after trauma. This study evaluated the effectiveness of a vestibular rehabilitation program in the recovery of acute and sub-acute head trauma patients. The goal of this study was evaluation of the effect of early vestibular rehabilitation on patients with acute and sub-acute head trauma.
Materials and Methods: This study was performed in 20 head trauma patients with vertigo and unsteadiness. The patients were randomly divided into two groups: one group received medical therapy (Betaserc) and the other received rehabilitation and medical therapy. An individualized vestibular rehabilitation program was designed that was then revised and verified by a joint committee of vestibular rehabilitation groups. The effectiveness of interventions was measured using the Dizziness Handicap Inventory (DHI) by comparing the results before and after therapy.
Results: The physical conditions and DHI scores of patients in both groups were similar at baseline. After 1 month of rehabilitation, patients receiving vestibular rehabilitation and medication showed greater progress than patients receiving medication only (P=0.000).
Conclusion: Vestibular rehabilitation can aid in the recovery from vertigo and increase the stability of head trauma patients. Simultaneous treatment with medicine and vestibular rehabilitation exercises can result in quicker and better therapeutic effects.

PMID: 29594074 [PubMed]

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Enhancing Working Memory Capacity in Persian Cochlear Implanted Children: A Clinical Trial Study.

Related Articles

Enhancing Working Memory Capacity in Persian Cochlear Implanted Children: A Clinical Trial Study.

Iran J Otorhinolaryngol. 2018 Mar;30(97):77-83

Authors: Doosti A, Jalalipour M, Ahmadi T, Hashemi SB, Haghjou S, Bakhshi E

Abstract
Introduction: Sensory deprivations such as hearing impairment that affect sensory input have a secondary impact on cognitive functions such as working memory (WM). WM capacity is an important cognitive component that processes language-related activities. Moreover, several studies have shown a deficit in WM in children with a cochlear implant (CI). We aimed to assess the performance of children with CIs in pre- and post-training sessions and compare their scores on a battery of WM tests to investigate the efficacy of a WM training program.
Materials and Methods: Twenty-five children aged 7-10 years with a CI participated in this study. To train their WM, a computer game was used. In order to examine auditory WM, a test battery including standardized digit span (forward and backward variations), non-word and sentence repetition (subtest of the Test of Language Development-Primary) were assessed in pre- and post-training test sessions at Shiraz Implant Center.
Results: There were statistically significant differences between pre- and post-training test scores on all subtests. Test score differences were statistically significant for forward digit span (P=0.003), backward digit span (P=0.001), non-word repetition (P=0.001), and sentence repetition tasks (P=0.003) before and after training sessions.
Conclusion: Training may enhance WM capacity. With regards to the importance of WM in literacy and learning, it seems applying such intervention programs may be helpful in the rehabilitation of implanted children.

PMID: 29594073 [PubMed]

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Tonsillar Lymphoma in Children According to Age Group: A Systematic Review.

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Tonsillar Lymphoma in Children According to Age Group: A Systematic Review.

Iran J Otorhinolaryngol. 2018 Mar;30(97):69-75

Authors: de Carvalho GM, Pauna HF, Crespo AN, Gusmão RJ, Guimarães AC

Abstract
Introduction: Lymphoma is a common malignant tumor of the head and neck occurring during childhood. Early diagnosis is very important in terms of prognosis in patients with tonsillar lymphoma.Our objective was to evaluate the clinical manifestations of pediatric tonsillar lymphoma according to different age groups.
Materials and Methods: A systematic review of available English, Spanish, or Portuguese literature from January 1996 to June 2012 was performedin the BIREME, Cochrane, IBECS, Lilacs, PubMed/Medline, SCIELO, and Scopus databases, using "tonsillar lymphoma" and "children" as keywords. Inclusion criteria were pediatric case reports, patients aged up to 18 years, and information on clinical features at the time of diagnosis.
Results: Out of 87 identified publications, 13 articles were selected describing 53 patients. Tonsillar asymmetry was the most common sign. Snoring is a common sign in patients aged under 5 years; clinical lymphadenopathy is frequent among patients aged between 6 and 10 years; and dysphagia is a common sign in patients between 11 and 18 years of age. Burkitt's lymphoma is the most common form among all ages studied, followed by B-cell lymphoma.
Conclusion: Clinical manifestations differ according to age group. However, tonsillar asymmetry is the most frequent sign regardless of age group.

PMID: 29594072 [PubMed]

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Comparison of symmetry after smile reconstruction for flaccid facial paralysis with combined fascia lata grafts and functional gracilis transfer for static suspension or gracilis transfer alone

Microsurgery, EarlyView.


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Transoral endoscopic thyroid surgery via the tri‐vestibular approach with a hybrid space‐maintaining method: A preliminary report

Head &Neck, EarlyView.


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Systematic review evaluating randomized controlled trials of smoking and alcohol cessation interventions in people with head and neck cancer and oral dysplasia

Head &Neck, EarlyView.


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Syringomyelia with intramedullary ectopic choroid plexus: Case report

Publication date: June 2018
Source:Clinical Neurology and Neurosurgery, Volume 169
Author(s): Hongzhou Duan, Jiayong Zhang, Feifan Xu, Zongqiang Zhang, Xiaowen Zhao
BackgroundIntramedullary ectopic choroid plexus is rarely reported, here, we reported a rare case of symptomatic syringomyelia resulted of intramedullary ectopic choroid plexus.Case descriptionThe patient was a 30-year-old female who presented with a 2-month history of progressive pain of upper back and bilateral ankle joint and progressive loss of upper-extremity function. MRI examination showed an intramedullary cystic lesion at T2-T4 without enhancement. Operative exploration was indicated. A reddish vascular villus-like lesion was found being located in the left dorsal part of the cyst, which was enblock removed and was confirmed as an ectopic choroid plexus tissue by pathological examination. The patient recovered uneventful and the symptom resolved during follow-up.ConclusionsAlthough ectopic choroid plexus is extremely rare, it should be taken into acount in the differential diagnosis of pathogenesis in syringomyelia or intramedullary cyst, aggressive surgical exploration should be considered when necessary.



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Giant convexity chondroma with meningeal attachment

Publication date: June 2018
Source:Clinical Neurology and Neurosurgery, Volume 169
Author(s): Denise Feierabend, Salah Maksoud, Aaron Lawson McLean, Arend Koch, Rolf Kalff, Jan Walter
ObjectiveIntracranial chondroma is a rare and benign tumor with usual onset in young adulthood. The skull base is the most common site of occurrence although, less often, the tumors can appear at the falx cerebri or at the dural convexity. The differentiation of these lesions from meningiomas through imaging is generally difficult.Patient and methodsClinical case presentation and review of the current literature.Results / Case presentationWe report a case of a 25-year-old male patient with a giant convexity chondroma with meningeal attachment in the right frontal lobe that was detected after a first generalized seizure. Based on the putative diagnosis of meningioma, the tumor was completely resected via an osteoplastic parasagittal craniotomy. The postoperative MRI confirmed the complete tumor resection. Histopathological analysis revealed the presence of a chondroma.ConclusionIntracranial chondromas are a rarity and their preoperative diagnosis based on neuroimaging is difficult. In young patients and those with skeletal disease, the differential diagnosis of a chondroma should be considered. In symptomatic patients, operative resection is sensible. In most cases total removal of the tumor is possible and leads to full recovery. When the finding is merely incidental in older patients, a watchful waiting approach is acceptable, given the benign and slow-growing nature of the lesion.



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Operational evaluation of the RLINE dispersion model for studies of traffic-related air pollutants

Publication date: June 2018
Source:Atmospheric Environment, Volume 182
Author(s): Chad W. Milando, Stuart A. Batterman
Exposure to traffic-related air pollutants (TRAP) remains a key public health issue, and improved exposure measures are needed to support health impact and epidemiologic studies and inform regulatory responses. The recently developed Research LINE source model (RLINE), a Gaussian line source dispersion model, has been used in several epidemiologic studies of TRAP exposure, but evaluations of RLINE's performance in such applications have been limited. This study provides an operational evaluation of RLINE in which predictions of NOx, CO and PM2.5 are compared to observations at air quality monitoring stations located near high traffic roads in Detroit, MI. For CO and NOx, model performance was best at sites close to major roads, during downwind conditions, during weekdays, and during certain seasons. For PM2.5, the ability to discern local and particularly the traffic-related portion was limited, a result of high background levels, the sparseness of the monitoring network, and large uncertainties for certain processes (e.g., formation of secondary aerosols) and non-mobile sources (e.g., area, fugitive). Overall, RLINE's performance in near-road environments suggests its usefulness for estimating spatially- and temporally-resolved exposures. The study highlights considerations relevant to health impact and epidemiologic applications, including the importance of selecting appropriate pollutants, using appropriate monitoring approaches, considering prevailing wind directions during study design, and accounting for uncertainty.



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Precision medicine becomes reality—tumor type-agnostic therapy

Abstract

Precision medicine just witnessed two breakthroughs in oncology in 2017. Pembrolizumab (Keytruda), Merck's anti-programmed cell death-1 (PD-1) monoclonal antibody (mAb), received accelerated approval in May 2017 by the US Food and Drug Administration for the treatment of adult and pediatric patients with unresectable or metastatic solid tumors that have been identified as having microsatellite instability-high (MSI-H) or deficient DNA mismatch repair (dMMR). Shortly after, nivolumab (Opdivo), Bristol-Myers Squibb's anti-PD-1 mAb, gained an accelerated approval in August 2017 for adult and pediatric patients with MSI-H or dMMR metastatic colorectal cancer that has progressed after standard chemotherapy. These regulatory approvals marked an important milestone that a cancer treatment may be approved based on a common biomarker rather than the anatomic location in the body where the tumor originated, and therefore established a precedent for tumor type-agnostic therapy. In the 2017 American Society for Clinical Oncology annual meeting, larotrectinib (LOXO-101), Loxooncology's oral, potent, and selective inhibitor of tropomyosin receptor kinases (TRK), demonstrated unprecedented efficacy on unresectable or metastatic solid tumors with neurotrophic tropomyosin receptor kinase (NTRK)-fusion proteins in adult and pediatric patients. Both the anti-PD-1 mAbs and the TRK-targeting therapies share some basic features: (a) biomarker-based, well-defined rare patient population; (b) exceptionally high clinical efficacy, e.g., near 40% overall response rate (ORR) for pembrolizumab across 15 tumor types with MSI-H/dMMR and 75% ORR for larotrectinib across more than 12 tumor types with NTRK-fusion proteins; (c) durable responses lasting at least 6 months with complete responses observed; and (d) parallel development in adult and pediatric populations. With increasing accessibility to genetic analysis tools such as next-generation sequencing, tumor type-agnostic therapy has become a reality, both during clinical development and in clinical practice. Adjustments in our approaches to developing new anti-cancer drugs and to adopting these new cancer treatments in clinical practice need to occur in order to prepare ourselves for the new era of precision medicine.

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Selection of candidates for surgery as local therapy among early-stage small cell lung cancer patients: a population-based analysis

Abstract

Background

Surgery and radiotherapy are considered local therapies for small cell lung cancer (SCLC). The present study aimed to select candidates for surgery as local therapy among patients with stage I or II SCLC, based on the eighth edition of the TNM classification for lung cancer.

Methods

Patients diagnosed with SCLC between 2004 and 2013 were selected from the Surveillance, Epidemiology, And End Results database. The TNM stage of SCLC in these patients was re-classified according to the eighth edition of the TNM classification for lung cancer. Patients with stage I or II SCLC were included in the present study. Overall survival (OS) and lung cancer-specific survival (LCSS) were separately compared in the different TNM stages between patients who received surgery and radiotherapy as local therapy. Multivariate analysis was applied to evaluate multiple factors associated with survival.

Results

Among the 2129 patients included in the present study, 387 (18.2%) received surgery, 1032 (48.5%) underwent radiotherapy as local therapy, 154 (7.2%) underwent surgery and radiotherapy, and 556 (26.1%) did not undergo either surgery or radiotherapy. Among patients with T1-2N0 (tumor size ≤ 50 mm without positive lymph nodes) disease, patients who underwent surgery had higher 5-year OS and LCSS rates than patients who received radiotherapy (T1N0: 46.0% vs. 23.8%, P < 0.001, and 58.4% vs. 36.4%, P < 0.001, respectively; T2N0: 42.6% vs. 24.7%, P = 0.004, and 48.8% vs. 31.3%, P = 0.011, respectively). Multivariate analysis results revealed that surgery was associated with low risk of death. However, among T3N0 or T1-2N1 (stage IIB) SCLC patients, patients who underwent surgery did not have higher 5-year OS and LCSS rates than patients who received radiotherapy (T3N0: 16.2% vs. 26.5%, P = 0.085, and 28.7% vs. 30.9%, P = 0.372, respectively; T1-2N1: 20.3% vs. 29.0%, P = 0.146, and 25.6% vs. 35.5%, P = 0.064, respectively).

Conclusions

Based on the assumption that the overwhelming majority of stage I or II SCLC patients who underwent surgery or radiotherapy also received certain types of systemic therapy, only patients with T1-2N0 SCLC may benefit from surgery as local therapy. Patients with T3N0 or T1-2N1 SCLC may consider radiotherapy as local therapy.

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Hourly pattern of allergenic alder and birch pollen concentrations in the air: Spatial differentiation and the effect of meteorological conditions

Publication date: June 2018
Source:Atmospheric Environment, Volume 182
Author(s): K. Borycka, I. Kasprzyk
In temperate climate widespread alder and birch are an important source of strong aeroallergens. The diurnal pattern of airborne pollen concentrations depends on the rhythm of pollen release from anthers as well as weather conditions, convection air currents, long-distance transport, pollen trap location and local vegetation. The aim of the study was to present a diurnal pattern of Alnus (alder) and Betula (birch) pollen concentrations in the air in a horizontal and vertical gradient and examine the weather parameters that had the greatest impact on the pattern. The study was conducted in Rzeszów City, southeast Poland over three years. Pollen grains were collected using a Hirst volumetric spore trap at three sampling points: two at 12 m the agl, and one at 1.5 m agl. Data were analysed using circular statistics and a nonlinear function. For alder, three models of hourly patterns were elaborated and the most common presented early morning minimum and early afternoon maximum. For birch, the most common model has one peak at night and a marked decrease in concentrations in early morning, although a second model has peak during early afternoon. A model with 3 peaks is much less common. These models are characteristic for warm temperate climate regions, where alders and birches are common. The diurnal patterns did not depend on the localization of traps or proximity of the pollen source, although these factors influenced the hourly concentrations, with higher values observed at roof level. Significant relationships between the hourly pollen counts and meteorological parameters were observed only for alder. Three incidents of increasing birch pollen concentrations were observed during the first two hours of precipitation and linked to a convection effect. Unstable weather conditions caused by air convection might strongly modify the circadian pattern and cause the nightly peaks concentrations. The general results are that people suffering from allergies may be exposed to high birch and alder pollen concentrations at almost all times during the day with the exception of the morning hours, as well as during the first hours of convective precipitation. Precise information on pollen concentrations aids in allergy prevention, so cities should provide aerobiological monitoring at least at "roof level" and "nose level".

Graphical abstract

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Air quality and human health impacts of grasslands and shrublands in the United States

Publication date: June 2018
Source:Atmospheric Environment, Volume 182
Author(s): Varsha Gopalakrishnan, Satoshi Hirabayashi, Guy Ziv, Bhavik R. Bakshi
Vegetation including canopy, grasslands, and shrublands can directly sequester pollutants onto the plant surface, resulting in an improvement in air quality. Until now, several studies have estimated the pollution removal capacity of canopy cover at the level of a county, but no such work exists for grasslands and shrublands. This work quantifies the air pollution removal capacity of grasslands and shrublands at the county-level in the United States and estimates the human health benefits associated with pollution removal using the i-Tree Eco model. Sequestration of pollutants is estimated based on the Leaf Area Index (LAI) obtained from the Moderate Resolution Imaging Spectroradiometer (MODIS) derived dataset estimates of LAI and the percentage land cover obtained from the National Land Cover Database (NLCD) for the year 2010. Calculation of pollution removal capacity using local environmental data indicates that grasslands and shrublands remove a total of 6.42 million tonnes of air pollutants in the United States and the associated monetary benefits total $268 million. Human health impacts and associated monetary value due to pollution removal was observed to be significantly high in urban areas indicating that grasslands and shrublands are equally critical as canopy in improving air quality and human health in urban regions.

Graphical abstract

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Experimental investigation of tread wear and particle emission from tyres with different treadwear marking

Publication date: June 2018
Source:Atmospheric Environment, Volume 182
Author(s): Theodoros Grigoratos, Mats Gustafsson, Olle Eriksson, Giorgio Martini
The Treadwear Rating (TWR) provided on the sidewall of the tyre is a marking intended to inform the customer about the expected durability of the tyre. The current study explores whether there is a correlation between the TWR and tyres' tread mass loss. Furthermore, it explores the possible correlation between the TWR and tyre wear dust emitted in the form of PM10 and PM2.5. For that reason, two tyres of the same brand (B) but with different TWR and three tyres of different brands (C and D with the same TWR as one of the B tyres and A with a lower TWR) were tested at a constant speed of 70 km/h by means of the Swedish National Road and Transport Research Institute (VTI) road simulator. Tyres of the same TWR but of different brands showed different behaviour in terms of material loss, PM, and PN emissions under the selected testing conditions. This means that it is not feasible to categorize tyres of different brands in terms of their emissions based on their TWR. The test performed on the two tyres of the same brand but with different TWR showed instead a substantial (not statistically significant) difference in both total wear and PM10 emissions. The tyre with the higher TWR (B2) showed less wear and PM10 emissions compared to the B1 tyre having a lower TWR. Since only two tyres of the same brand and with different TWR were tested, this result cannot be generalized and more tests are necessary to confirm the relation within the same brand. In general, the tyre tread mass loss showed no obvious statistical relation to PM10, PM2.5 or PN concentration. In all cases approximately 50% (by mass) of emitted PM10 fall within the size range of fine particles, while PN size distribution is dominated by nanoparticles most often peaking at 20–30 nm.



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Temporal and spatial characteristics of dust devils and their contribution to the aerosol budget in East Asia—An analysis using a new parameterization scheme for dust devils

Publication date: June 2018
Source:Atmospheric Environment, Volume 182
Author(s): Yaoguo Tang, Yongxiang Han, Zhaohuan Liu
Dust aerosols are the main aerosol components of the atmosphere that affect climate change, but the contribution of dust devils to the atmospheric dust aerosol budget is uncertain. In this study, a new parameterization scheme for dust devils was established and coupled with WRF-Chem, and the diurnal and monthly variations and the contribution of dust devils to the atmospheric dust aerosol budget in East Asia was simulated. The results show that 1) both the diurnal and monthly variations in dust devil emissions in East Asia had unimodal distributions, with peaks in the afternoon and the summer that were similar to the observations; 2) the simulated dust devils occurred frequently in deserts, including the Gobi. The distributed area and the intensity center of the dust devil moved from east to west during the day; 3) the ratio between the availability of convective buoyancy relative to the frictional dissipation was the main factor that limited the presence of dust devils. The position of the dust devil formation, the surface temperature, and the boundary layer height determined the dust devil intensity; 4) the contribution of dust devils to atmospheric dust aerosols determined in East Asia was 30.4 ± 13%, thereby suggesting that dust devils contribute significantly to the total amount of atmospheric dust aerosols. Although the new parameterization scheme for dust devils was rough, it was helpful for understanding the distribution of dust devils and their contribution to the dust aerosol budget.

Graphical abstract

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VOCs emission characteristics and priority control analysis based on VOCs emission inventories and ozone formation potentials in Zhoushan

Publication date: June 2018
Source:Atmospheric Environment, Volume 182
Author(s): Qiaoli Wang, Sujing Li, Minli Dong, Wei Li, Xiang Gao, Rongmin Ye, Dongxiao Zhang
Zhoushan is an island city with booming tourism and service industry, but also has many developed VOCs and/or NOX emission industries. It is necessary to carry out regional VOCs and O3 pollution control in Zhoushan as the only new area owns the provincial economic and social administration rights. Anthropogenic VOCs emission inventories were built based on emission factor method and main emission sources were identified according to the emission inventories. Then, localized VOCs source profiles were built based on in-site sampling and referring to other studies. Furthermore, ozone formation potentials (OFPs) profiles were built through VOCs source profiles and maximum incremental reactivity (MIR) theory. At last, the priority control analysis results showed that industrial processes, especially surface coating, are the key of VOCs and O3 control. Alkanes were the most emitted group, accounting for 58.67%, while aromatics contributed the most to ozone production accounting for 69.97% in total OFPs. n-butane, m/p-xylene, i-pentane, n-decane, toluene, propane, n-undecane, o-xylene, methyl cyclohexane and ethyl benzene were the top 10 VOC species that should be preferentially controlled for VOCs emission control. However, m/p-xylene, o-xylene, ethylene, n-butane, toluene, propene, 1,2,4-trimethyl benzene, 1,3,5-trimethyl benzene, ethyl benzene and 1,2,3-trimethyl benzene were the top 10 VOC species that required preferential control for O3 pollution control.



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A new methodology to derive settleable particulate matter guidelines to assist policy-makers on reducing public nuisance

Publication date: June 2018
Source:Atmospheric Environment, Volume 182
Author(s): Milena Machado, Jane Meri Santos, Valdério Anselmo Reisen, Neyval Costa Reis, Ilias Mavroidis, Ana T. Lima
Air quality standards for settleable particulate matter (SPM) are found in many countries around the world. As well known, annoyance caused by SPM can be considered a community problem even if only a small proportion of the population is bothered at rather infrequent occasions. Many authors have shown that SPM cause soiling in residential and urban environments and degradation of materials (eg, objects and surface painting) that can impair the use and enjoyment of property and alter the normal activities of society. In this context, this paper has as main contribution to propose a guidance to establish air quality standards for annoyance caused by SPM in metropolitan industrial areas. To attain this objective, a new methodology is proposed which is based on the nonlinear correlation between the perceived annoyance (qualitative variable) and particles deposition rate (quantitative variable). Since the response variable is binary (annoyed and not annoyed), the logistic regression model is used to estimate the probability of people being annoyed at different levels of particles deposition rate and to compute the odds ratio function which gives, under a specific level of particles deposition rate, the estimated expected value of the population perceived annoyance. The proposed methodology is verified in a data set measured in the metropolitan area of Great Vitória, Espirito Santo, Brazil. As a general conclusion, the estimated probability function of perceived annoyance as a function of SPM has shown that 17% of inhabitants report annoyance to very low particles deposition levels of 5 g/(m²∙30 days). In addition, for an increasing of 1 g/(m²∙30 days) of SPM, the smallest estimated odds ratio of perceived annoyance by a factor of 1.5, implying that the probability of occurrence is almost 2 times as large as the probability of no occurrence of annoyance.

Graphical abstract

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Diurnal spatial distributions of aerosol optical and cloud micro-macrophysics properties in Africa based on MODIS observations

Publication date: June 2018
Source:Atmospheric Environment, Volume 182
Author(s): Didier Ntwali, Hongbin Chen
The diurnal spatial distribution of both natural and anthropogenic aerosols, as well as liquid and ice cloud micro-macrophysics have been evaluated over Africa using Terra and Aqua MODIS collection 6 products. The variability of aerosol optical depth (AOD), Ångström exponent (AE), liquid and ice cloud microphysics (Liquid cloud effective radius LCER, Ice cloud effective radius ICER) and cloud macrophysics (Liquid cloud optical thickness LCOT, Liquid cloud water path LCWP, Ice cloud optical thickness ICOT, Ice cloud water path ICWP) parameters were investigated from the morning to afternoon over Africa from 2010 to 2014. In both the morning (Terra) and afternoon (Aqua) heavy pollution (AOD ≥ 0.6) occurs in the coastal and central areas (between 12⁰ N-17⁰ N and 10⁰ E-15⁰ E) of West of Africa (WA), Central of Africa (CA) (0.5⁰ S-7⁰S and 10⁰ E-25⁰ E),. Moderate pollution (0.3 < AOD < 0.6) often occurs in West and North of Africa (between 5⁰ N-27⁰ N and 16⁰ W-5⁰E), and clean environmental (AOD < 0.3) conditions are common in South of Africa (SA), East of Africa (EA) and some regions in North of Africa (NA). The West-North of Africa (WNA) and Central-South of Africa (CSA) regions are dominated by dust (AE < 0.7) and biomass burning (AE > 1.2) aerosols. The mixture of dust and biomass burning aerosols (0.7 < AE < 1.2) are found at the coastal areas in West of Africa (CoWA) and Central of Africa (CA) (5⁰ N-8⁰N and 10⁰ E-34⁰ E), particularly in the morning and afternoon respectively. The LCER often decrease from the morning to the afternoon in all seasons, but an increase occur from the morning to the afternoon in CSA (5⁰ S-22⁰ S) in DJF, both CA (2⁰ S-5⁰N) and CoWA in JJA and SON. The ICER increase from the morning to afternoon in all seasons over Africa and decreases in South of Africa (5⁰ S-20⁰ S) in DJF. The LCOT increases from the morning to afternoon in NA and SA while a decrease occur in CA in all seasons. The LCWP increase in many regions of Africa in all seasons while a decrease occurs in CoWA during JJA. The ICOT and ICWP show a remarkable increase from the morning to afternoon in regions dominated by biomass burning (CSA) compared to regions dominated by dust (WNA) aerosols in DJF, MAM and SON. Dust aerosols are mainly distributed in WNA by northerly and westerly winds in both January and April, southerly and southwesterly winds in July, and southerly and southwesterly winds in October, while biomass burning aerosols are mainly distributed in CSA by the northerly and northeasterly winds in January, easterly winds in April, July and October. The diurnal variability of cloud parameters is associated with both convective processes and cloud types. The knowledge of interactions between natural and anthropogenic aerosols with liquid and ice cloud microphysics parameters could contribute to improve aerosol and cloud remote sensing retrieval.



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Retraction: ‘Sunlight exposure is important for preventing hip fractures in patients with Alzheimer's disease, Parkinson's disease, or stroke’ by J. Iwamoto, T. Takeda and H. Matsumoto

Acta Neurologica Scandinavica, EarlyView.


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Tumour-derived GM-CSF promotes granulocyte immunosuppression in mesothelioma patients

Purpose: The cross talk between tumour cells, myeloid cells, and T cells play a critical role in tumour pathogenesis and response to immunotherapies. Although the aetiology of mesothelioma is well understood the impact of mesothelioma on the surrounding immune microenvironment is less well studied. In this study the effect of the mesothelioma microenvironment on circulating and infiltrating granulocytes and T cells is investigated. Experimental Design: Tumour and peripheral blood from mesothelioma patients were evaluated for presence of granulocytes, which were then tested for their T cell suppression. Co-cultures of granulocytes, mesothelioma cells, T cells were used to identify the mechanism of T cell inhibition. Results: Analysis of tumours showed that the mesothelioma microenvironment is enriched in infiltrating granulocytes, which inhibit T cell proliferation and activation. Characterisation of the blood at diagnosis identified similar, circulating, immunosuppressive CD11b+CD15+HLADR- granulocytes at increased frequency compared to healthy controls. Culture of healthy-donor granulocytes with human mesothelioma cells showed that GM-CSF upregulates NOX2 expression and the release of Reactive Oxygen Species (ROS) from granulocytes, resulting in T cell suppression. Immunohistochemistry and transcriptomic analysis revealed that a majority of mesothelioma tumours express GM-CSF and that higher GM-CSF expression correlated with clinical progression. Blockade of GM-CSF with neutralising antibody, or ROS inhibition, restored T cell proliferation suggesting that targeting of GM-CSF could be of therapeutic benefit in these patients. Conclusions: Our study presents the mechanism behind the cross-talk between mesothelioma and the immune micro-environment and indicates that targeting GM-CSF could be a novel treatment strategy to augment immunotherapy.

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SMAD4 gene mutation renders pancreatic cancer resistance to radiotherapy through promotion of autophagy

Purpose: Understanding the mechanism of radioresistance could help develop strategies to improve therapeutic response of patients with PDAC. The SMAD4 gene is frequently mutated in pancreatic cancer. In this study, we investigated the role of SMAD4 deficiency in pancreatic cancer cells' response to radiotherapy. Experimental Design: We downregulated SMAD4 expression with SMAD4 siRNA or SMAD4 shRNA and overexpressed SMAD4 in SMAD4 mutant pancreatic cancer cells followed by clonogenic survival assay to evaluate their effects on cell radioresistance. To study the mechanism of radioresistance, the effects of SMAD4 loss on reactive oxygen species (ROS) and autophagy were determined by Flow Cytometry and immunoblot analysis, respectively. Furthermore, we measured radioresistance by clonogenic survival assay after treatment with autophagy inhibitor (Chloroquine) and ROS inhibitor (N-acetyl-L-cysteine) in SMAD4-depleted pancreatic cancer cells. Finally, the effects of SMAD4 on radioresistance were also confirmed in an orthotopic tumor model derived from SMAD4-depleted Panc-1 cells. Results: SMAD4-depleted pancreatic cancer cells were more resistant to radiotherapy based on clonogenic survival assay. Overexpression of wild type SMAD4 in SMAD4-mutant cells rescued their radiosensitivity. Radioresistance mediated by SMAD4 depletion was associated with persistently higher levels of ROS and radiation-induced autophagy. Finally, SMAD4 depletion induced in vivo radioresistance in Panc-1-derived orthotopic tumor model (P = 0.038). More interestingly, we observed that the protein level of SMAD4 is inversely correlated with autophagy in orthotopic tumor tissue samples. Conclusions:Our results demonstrate that defective SMAD4 is responsible for radioresistance in pancreatic cancer through induction of ROS and increased level of radiation-induced autophagy.

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Renal failure in pediatric Castleman disease: Four French cases with thrombotic microangiopathy

Pediatric Blood &Cancer, EarlyView.


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Parent understanding of the risk of future limitations secondary to pediatric cancer treatment

Pediatric Blood &Cancer, EarlyView.


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Comment on: Effectiveness of antibacterial prophylaxis during induction chemotherapy in children with acute lymphoblastic leukemia

Pediatric Blood &Cancer, EarlyView.


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Funerals

Pediatric Blood &Cancer, EarlyView.


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Phase I trial of the mTOR inhibitor everolimus in combination with multi‐agent chemotherapy in relapsed childhood acute lymphoblastic leukemia

Pediatric Blood &Cancer, EarlyView.


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Editorial Board

Publication date: April 2018
Source:European Annals of Otorhinolaryngology, Head and Neck Diseases, Volume 135, Issue 2





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Contents

Publication date: April 2018
Source:European Annals of Otorhinolaryngology, Head and Neck Diseases, Volume 135, Issue 2





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Facial Fracture Patterns Associated with Traumatic Optic Neuropathy

Cranial Maxillofac Trauma Reconstruction
DOI: 10.1055/s-0038-1641172

Traumatic optic neuropathy (TON) is rare. The heterogeneity of injury patterns and patient condition on presentation makes diagnosis difficult. Fracture patterns associated with TON have never been evaluated. Retrospective review of 42 patients diagnosed with TON at the R. Adams Cowley Shock Trauma Center from May 1998 to August 2010 was performed. Thirty-three patients met criteria for study inclusion of fracture patterns. Additional variables measured included patient demographics and mechanism. Cluster analysis was used to form homogenous groups of patients based on different fracture patterns. Fracture frequency was analyzed by group and study population. Visual depiction of fracture patterns was created for each group. Cluster analysis of fracture patterns yielded five common "groups" or fracture patterns among the study population. Group 1 (n = 3, 9%) revealed contralateral lateral orbital wall (100%), zygoma (67%), and nasal bone (67%) fractures. Group 2 (n = 7, 21%) demonstrated fractures of the frontal bone (86%), nasal bones (71%), and ipsilateral orbital roof (57%). Group 3 (n = 14, 43%) involved fractures of the ipsilateral zygoma (100%), lateral orbital wall (29%), as well as frontal and nasal bones (21% each). Group 4 (n = 5, 15%) consisted of mid- and upper-face fractures; 100% fractured the ipsilateral orbital floor, medial and lateral walls, maxilla, and zygoma; 80% fractured the orbital roof and bilateral zygoma. Group 5 (n = 4, 12%) was characterized by fractures of the ipsilateral orbital floor, medial and lateral orbital walls (75% each), and orbital roof (50%). A notably high 15 of 33 patients (45%) sustained penetrating trauma. Our study demonstrates five fracture pattern groups associated with TON. Zygomatic, frontal, nasal, and orbital fractures were the most common. Fractures with a combination of frontal, nasal, and orbital fractures are particularly concerning and warrant close attention to the eye.
[...]

Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.

Article in Thieme eJournals:
Table of contents  |  Abstract  |  Full text

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Editorial Board

Publication date: 15 April 2018
Source:Journal of Neuroscience Methods, Volume 300





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Preface: Special issue on measuring behaviour 2016

Publication date: 15 April 2018
Source:Journal of Neuroscience Methods, Volume 300
Author(s): Gernot Riedel, Cathal Gurrin, Andrew Spink




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Lacking quality in research: Is behavioral neuroscience affected more than other areas of biomedical science?

Publication date: 15 April 2018
Source:Journal of Neuroscience Methods, Volume 300
Author(s): Anton Bespalov, Thomas Steckler
There are many reasons why novel therapeutics fail in clinical trials but these failures are often attributed to lacking quality of preclinical data. These problems are not limited to any specific therapeutic area, academic or industrial research and are due in large part to several generic factors influencing research quality (e.g., related to definition of pre-specified endpoints, principles of study design and analysis, biased reporting, and lack of proper training). Yet, neuroscience drug discovery is often said to be affected more than the other fields. Within neuroscience, behavioral studies are the most blamed for being poorly designed, underpowered and mis-reported and there are indeed several factors that may be rather unique for behavioral research, such as a multitude of environmental conditions that are difficult to control and that are often not reported, ethical concerns about in vivo research and the pressure to reduce animal numbers, contributing to under-powered studies, and the complexity of study design and analysis, creating too much room for post hoc data massaging and selective reporting. Also, the blood-brain barrier as a frequently neglected complicating factor has to be considered in CNS research. The importance of these factors is increasingly recognized and urgent efforts are needed to demonstrate that behavioral methods of preclinical neuroscience research deliver results that can be as robust as with the non-behavioral methods Until this goal is achieved, behavioral neuroscience and neuroscience in general may be losing young talent, CNS drug discovery may lack the needed investment and this field may indeed be amongst the most affected by the current preclinical data quality crisis.



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Between and within laboratory reliability of mouse behaviour recorded in home-cage and open-field

Publication date: 15 April 2018
Source:Journal of Neuroscience Methods, Volume 300
Author(s): Lianne Robinson, Berry Spruijt, Gernot Riedel
BackgroundReproducibility of behavioural findings between laboratories is difficult due to behaviour being sensitive to environmental factors and interactions with genetics. The objective of this study was to investigate reproducibility of behavioural data between laboratories using the PhenoTyper home cage observation system and within laboratory reproducibility using different lighting regimes.New methodThe ambulatory activity of C57BL/6 and DBA/2 mice was tested in PhenoTypers in two laboratories under near identical housing and testing conditions (Exp. 1). Additionally activity and anxiety were also assessed in the open-field test. Furthermore, testing in either a normal or inverted light/dark cycle was used to determine effects of lighting regime in a within-laboratory comparison in Aberdeen (Exp. 2).ResultsUsing the PhenoTyper similar circadian rhythms were observed across laboratories. Higher levels of baseline and novelty-induced activity were evident in Aberdeen compared to Utrecht although strain differences were consistent between laboratories. Open field activity was also similar across laboratories whereas strain differences in anxiety were different. Within laboratory analysis of different lighting regimes revealed that behaviour of the mice was sensitive to changes in lighting.Comparison with existing methodsUtilisation of a home cage observation system facilitates the reproducibility of activity but not anxiety-related behaviours across laboratories by eliminating environmental factors known to influence reproducibility in standard behavioural tests.ConclusionsStandardisation of housing/test conditions resulted in reproducibility of home cage and open field activity but not anxiety-related phenotypes across laboratories with some behaviours more sensitive to environmental factors. Environmental factors include lighting and time of day.



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High tech cognitive and acoustic enrichment for captive elephants

Publication date: 15 April 2018
Source:Journal of Neuroscience Methods, Volume 300
Author(s): Fiona French, Clara Mancini, Helen Sharp
This paper investigates the potential for using technology to support the development of sensory and cognitive enrichment activities for captive elephants. It explores the usefulness of applying conceptual frameworks from interaction design and game design to the problem of developing species-specific smart toys that promote natural behaviours and provide stimulation. We adopted a Research through Design approach, and describe how scientific inquiry supported our design process, while the creation of artefacts guided our investigations into possible future solutions. Our fieldwork resulted in the development of an interactive prototype of an acoustic toy that elephants are able to control using interface elements constructed from a range of natural materials.



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Extended, continuous measures of functional status in community dwelling persons with Alzheimer’s and related dementia: Infrastructure, performance, tradeoffs, preliminary data, and promise

Publication date: 15 April 2018
Source:Journal of Neuroscience Methods, Volume 300
Author(s): Bradley Zylstra, George Netscher, Julien Jacquemot, Michael Schaffer, Galen Shen, Angela D. Bowhay, Tamara L. Braley, Katherine L. Possin, Bruce L. Miller, Alexandre M. Bayen, Stephen J. Bonasera, A. Katrin Schenk
BackgroundThe past decades have seen phenomenal growth in the availability of inexpensive and powerful personal computing devices. Efforts to leverage these devices to improve health care outcomes promise to remake many aspects of healthcare delivery, but remain in their infancy.New methodWe describe the development of a mobile health platform designed for daily measures of functional status in ambulatory, community dwelling subjects, including those who have Alzheimer's disease or related neurodegenerative disorders. Using Smartwatches and Smartphones we measure subject overall activity and outdoor location (to derive their lifespace). These clinically-relevant measures allow us to track a subject's functional status in their natural environment over prolonged periods of time without repeated visits to healthcare providers. Functional status metrics are integrated with medical information and caregiver reports, which are used by a caregiving team to guide referrals for physician/APRN/NP care.Comparisonwith Existing Methods We describe the design tradeoffs involved in all aspects of our current system architecture, focusing on decisions with significant impact on system cost, performance, scalability, and user-adherence.ResultsWe provide real-world data from current subject enrollees demonstrating system accuracy and reliability.ConclusionsWe document real-world feasibility in a group of men and women with dementia that Smartwatches/Smartphones can provide long-term, relevant clinical data regarding individual functional status. We describe the underlying considerations of this system so that interested organizations can adapt and scale our approach to their needs. Finally, we provide a potential agenda to guide development of future systems.



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Effect of IFN-λ2 on combined allergic rhinitis with nasal polyps

OBJECTIVE: This study sought to investigate the expression of interferon-λ2 (IFN-λ2) in patients with combined allergic rhinitis and nasal polyps (AR+NP), analyze the correlation between IFN-λ2 and tryptase, interleukin 10 (IL-10), and interleukin 12 (IL-12), and identify its peripheral blood cell origins.

PATIENTS AND METHODS: ELISA kits were used to investigate plasma levels of IFN-λ2, tryptase, IL-10, and IL-12 in AR+NP patients and healthy controls (HC). Flow cytometry analysis was carried out to detect IFN-λ2 expression in peripheral blood leukocytes. Immunocytochemical staining was performed to detect nasal polyp IFN-λ2 expression in AR+NP patients.

RESULTS: Elevated plasma IFN-λ2 levels and positive correlations between plasma IFN-λ2 and tryptase levels in AR+NP patients indicated that IFN-λ2 likely contributes to AR+NP pathogenesis. IFN-λ2 expression was upregulated in cytotoxic T cells and eosinophils in AR+NP patients. Nasal polyp mast cells and macrophages in AR+NP patients expressed IFN-λ2.

CONCLUSIONS: The close correlation between IFN-λ2 expression and AR+NP may provide experimental evidence for a possible effect of IFN-λ2 against the allergic inflammatory reaction. Therefore, IFN-λ2 actions may have a potential utility for the treatment and prevention of AR+AP.

L'articolo Effect of IFN-λ2 on combined allergic rhinitis with nasal polyps sembra essere il primo su European Review.

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Cost‐effectiveness of sialendoscopy versus medical management for radioiodine‐induced sialadenitis

The Laryngoscope, EarlyView.


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Post‐acute care use after major head and neck oncologic surgery with microvascular reconstruction

The Laryngoscope, EarlyView.


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Allergic phenotype of chronic rhinosinusitis based on radiologic pattern of disease

The Laryngoscope, EarlyView.


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Transoral resection of extensive pediatric supraglottic neurofibroma

The Laryngoscope, EarlyView.


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S15-3. Why is theta burst stimulation effective?

As the first patterned protocol of repetitive transcranial magnetic stimulation (rTMS), theta burst stimulation (TBS) gives bursts containing 3 pulses at 50 Hz at 5 Hz in either an uninterrupted continuous train (continuous TBS, cTBS) or short trains with pauses in between (intermittent TBS, iTBS). TBS induces a cortical modulation effect outlasting the stimulation for up to an hour after 20–192 s of stimulation. Since TBS is usually given at a low intensity for a short period of time, coil overheat is rarely seen before the end of stimulation.

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O-1-25. Task-dependent modulation of cerebellar brain inhibition during motor imagery

The aim of study was to investigate cerebellar brain inhibition (CBI) is affected by imaginary muscle contraction (Contract-I) and relaxation (Relax-I) using paired pulse paradigm with transcranial magnetic stimulation (TMS) in healthy human. Participants performed tonic actual contraction and relaxation of right first dorsal interosseous (FDI) muscle with visual feedback using electromyography. The motor evoked potential (MEP) in right FDI induced by TMS over the left primary motor cortex with or without conditioning TMS over the right cerebellum was measured during no-imagery (No-I), Contract-I (1st experiment, n = 9) and Relax-I (2nd experiment, n = 20).

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O-2-28. Vulnerability of each branch of median nerve in carpal tunnel syndrome

It is widely believed that sensory conduction study (SCS) is more sensitive than motor conduction study (MCS) in carpal tunnel syndrome (CTS). However, the sensitivity depends not only on the vulnerability of each branch of the median nerve, but on measurement errors and cut-off values. In this study, we aimed to clarify the true vulnerability of each branch in CTS. Subjects consisted of 144 CTS patients and 66 controls. The impairment of a branch was defined as the prolongation of onset latency.

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O-2-17. Influence of different types of orthoses on muscle synergy control during gait in stroke patients with hemiparesis

The purpose of this study was to verify the influence of lower limb orthoses on muscle synergy control during gait in stroke patients with hemiparesis. In four subjects with acute stroke, surface EMG signals from eight muscles of the paretic lower limb were measured during gait in two conditions (ankle foot orthosis; AFO or knee ankle foot orthosis; KAFO). The number of modules, muscle weightings and activation timing profile of each module were analyzed using non-negative matrix factorization. In two subjects (Fugl Meyer Assessment; FMA > 20) who walked with mild assistance, three modules were identified during gait with KAFO, whereas two modules were identified with AFO.

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O-2-24. Multimodal evoked potential study following posterior quadrantectomy in children with intractable epilepsy

To identify surgical effects on brainstem and cortical function objectively, we compared auditory brainstem response (ABR), somatosensory evoked potential (SEP) and flash visual evoked potential (fVEP) before and after posterior quadrantectomy (PQ) in 11 young children with intractable epilepsy associated with posterior quadrant cortical dysplasia. Mean age of seizure onset and the surgery was 1.4 months and 7.7 months old, respectively. Seven patients showed spasm and 2 had tonic seizures preoperatively.

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O-1-35. The verification for stimulation characteristics of Cortical Stimulator

Bipolar stimulation (BS) used in intraoperative mapping is said to have less influence of leakage current. Its characteristics were actually verified while comparing with monopolar stimulation (MS).

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O-1-24. Cortical silent period during force control task

We investigated whether transcranial magnetic stimulation (TMS)-induced cortical silent period (cSP), which reflects activation of the GABAergic inhibitory neural circuit in the primary motor cortex (M1), was modulated with dependency on actual output force and corticospinal excitability. Eleven healthy participants were asked to control the force of abduction of the right index finger to 10–100% of the maximum voluntary contraction. TMS was delivered to the left M1 during the task. The results showed that actual output force level, background electromyography activity (bEMG) and area of motor evoked potential (aMEP) in the right first dorsal interosseous muscle gradually increased with increasing target force level while cSP gradually decreased with increasing target force level.

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S19-4. Establishment of evidence-based physical therapy

Motor imagery and imitation have been widely used by physical therapist as part of rehabilitation program. However, there have been few evidences for the effect of these approaches on the physical therapy in terms of the neuroscience. Understanding of their neural mechanisms leads to establishment of evidence-based physical therapy (EBPT). Recently, we demonstrated some of the neural mechanism of motor imagery and imitation using MEG.

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A Multimodal analysis using flowmeter analysis, laser-Doppler spectrophotometry, and indocyanine green videoangiography for the detection of venous compromise in flaps in rats

Venous congestion results in tissue damage and remains the most common failure of free microvascular transfer if it is not recognized early. The purpose of this experimental study was to evaluate venous congestion and describe the findings with two different monitoring tools. A standardized epigastric flap was raised, and total occlusion of the draining vein was temporarily applied for 4, 5, 6, or 7 hours. Blood flow measurements, including laser-Doppler flowmetry, and tissue spectrophotometry (O2C) and indocyanine green (ICG) videoangiography using the FLOW® 800 tool, were performed systematically after each surgical step, an interval of venous occlusion, and 1 week of clinical observation.

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Trajectory-guided biopsy of orbital tumor - Technology, principal considerations and clinical implementation -

Intraorbital space-occupying lesions always pose a challenge, both in terms of definite surgical removal as well as preoperative sampling for histopathological examination. Despite the use of modern high-resolution imaging techniques, the dignity of orbital lesions can often not be determined with sufficient certainty preoperatively. As the amount and complexity of treatment possibilities continue to increase, detailed diagnostics in advance of treatment choice are essential. Histological classification of orbital lesions can still be considered the gold standard for reliable diagnoses, leading to appropriate treatment.

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Evaluation of postoperative changes in vascularized iliac bone grafts used for mandibular reconstruction

Publication date: Available online 30 March 2018
Source:International Journal of Oral and Maxillofacial Surgery
Author(s): T. Noguchi, S. Sarukawa, Y. Tsuchiya, N. Okada, J. Hayasaka, K. Sasaguri, H. Nishino, Y. Jinbu, Y. Mori
Vascularized iliac bone grafts are used for mandibular reconstruction, but the factors affecting graft maintenance are unknown. This study explored the postsurgical changes in vascularized iliac bone grafts in patients who had undergone mandibular reconstruction after segmental resection. The study involved 24 patients (16 men and eight women) with oral tumours or osteoradionecrosis. Thirteen patients required bare bone grafting (BBG) and 11 patients required reconstruction with soft tissue coverage (six with a skin paddle and five with direct closure). The bone graft maintenance rate (with regard to the height of the centre of the graft) was calculated immediately after surgery and at 3, 6, 12, 24, and 36months after surgery. The maintenance rate was significantly lower in the BBG group than in the soft tissue coverage group at 3, 6, 12, 24, and 36months, and in those who were fitted with dentures compared to those who were not at 6, 12, 24, and 36months. Local infection also influenced the maintenance rate, but not significantly so. These findings indicate that the reconstruction technique and denture use can affect the bone graft maintenance rate after mandibular reconstruction with vascularized iliac bone grafts.



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Does two-dimensional vs. three-dimensional surgical simulation produce better surgical outcomes among patients with class III facial asymmetry?

Publication date: Available online 30 March 2018
Source:International Journal of Oral and Maxillofacial Surgery
Author(s): N. Udomlarptham, C.-H. Lin, Y.-C. Wang, E.W.-C. Ko
The aim of this study was to compare the outcomes of traditional two-dimensional planning (2DP) and three-dimensional surgical simulation (3DS) in the surgical correction of skeletal class III with facial asymmetry. This retrospective cohort study included 37 consecutive adult Taiwanese patients. Preoperative and postoperative three-dimensional cephalometric measurements were obtained from cone beam computed tomography scans. The outcome variables were the differences in preoperative and postoperative linear and angular measurements and the differences between the two groups after surgery. When the surgical result was compared between the 2DP and 3DS groups, significant differences were found for four cephalometric variables: the distance from gonion on the non-deviated side to the midsagittal plane (MSP), mid-gonion to the MSP, upper first molar on the non-deviated side to the Frankfort horizontal plane, and the yaw angle. In the 3DS group, mandibular symmetry was achieved because the centre between the bilateral gonions was improved, and because there was no significant difference in the horizontal gonion (Go to the MSP) between the deviated and non-deviated sides after surgery. 3DS provides all the necessary information for planned surgical movements for the correction of facial asymmetry; it should be considered during surgical planning to improve surgical outcomes, particularly the achievement of bilateral mandibular contour symmetry.



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Prognostic value of lymph node count from selective neck dissection in oral squamous cell carcinoma

Publication date: Available online 30 March 2018
Source:International Journal of Oral and Maxillofacial Surgery
Author(s): S. Lee, H.J. Kim, I.-H. Cha, W. Nam
Unlike the levels of anatomical exploration, there is no consensus on the extent of lymph node dissection, or lymph node count (LNC), during selective neck dissection (SND). The aim of this study was to validate the prognostic impact of LNC on survival and to determine an optimal LNC cut-off value for SND. A retrospective investigation identified 78 patients with a diagnosis of oral squamous cell carcinoma (OSCC) who underwent SND (levels I–III or levels I–IV). LNC and clinicopathological variables were analyzed for any association with survival in Cox proportional hazards models. Based on the receiver operating characteristic curve, a cut-off value of 19 lymph nodes was found to predict overall survival (OS) (area under the curve 0.732, sensitivity 67.8%, specificity 75.0%; P=0.026) and disease-specific survival (DSS) (area under the curve 0.762, sensitivity 68.1%, specificity 77.8%; P=0.011). On Cox regression, LNC (≥19 vs. <19) was the only independent predictor of OS (hazard ratio 5.29, 95% confidence interval 1.39–20.05; P=0.014) and DSS (hazard ratio 6.76, 95% confidence interval 1.40–32.77; P=0.018). Similar results were obtained in the pathologically lymph node-negative subgroup (n=66). Based on the study findings, SND should include 19 or more lymph nodes for a survival benefit.



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Influence of Class V preparation on in vivo temperature rise in anesthetized human pulp during exposure to a Polywave® LED light curing unit

Publication date: Available online 29 March 2018
Source:Dental Materials
Author(s): Driellen Christine Zarpellon, Patrício Runnacles, Cristiane Maucoski, Dayane Jaqueline Gross, Ulisses Coelho, Frederick Allen Rueggeberg, Cesar Augusto Galvão Arrais
ObjectiveThis in vivo study evaluated pulp temperature (PT) rise in human premolars having deep Class V preparations during exposure to a light curing unit (LCU) using selected exposure modes (EMs).MethodsAfter local Ethics Committee approval, intact first premolars (n=8) requiring extraction for orthodontic reasons, from 8 volunteers, received infiltrative and intraligamental anesthesia and were isolated using rubber dam. A minute pulp exposure was attained and sterile probe from a wireless, NIST-traceable, temperature acquisition system was inserted into the coronal pulp chamber to continuously monitor PT (°C). A deep buccal Class V preparation was prepared using a high speed diamond bur under air-water spray cooling. The surface was exposed to a Polywave^® LED LCU (Bluephase 20i, Ivoclar Vivadent) using selected EMs, allowing 7-min span between each exposure: 10-s in low (10-s/L), 10-s (10-s/H), 30-s (30-s/H), or 60-s (60-s/H) in high mode; and 5-s-Turbo (5-s/T). Peak PT values and PT increases over physiologic baseline levels (ΔT) were subjected to 1-way, repeated measures ANOVAs, and Bonferroni's post-hoc tests (α=0.05). Linear regression analysis was performed to establish the relationship between applied radiant exposure and ΔT.ResultsAll EMs produced higher peak PT than the baseline temperature (p<0.001). Only 60-s/H mode generated an average ΔT of 5.5°C (p<0.001). A significant, positive relationship was noted between applied radiant exposure and ΔT (r²=0.8962; p<0.001).SignificanceIn vivo exposure of deep Class V preparation to Polywave^® LED LCU increases PT to values considered safe for the pulp, for most EMs. Only the longest evaluated EM caused higher PT increase than the critical ΔT, thought to be associated with pulpal necrosis.



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Injectable Silk Protein Microparticle-based Fillers: A Novel Material for Potential Use in Glottic Insufficiency

A novel, silk protein-based injectable filler was engineered with the intention of vocal fold augmentation as its eventual intended use. This injectable filler leverages the unique properties of silk protein's superior biocompatibility, mechanical tunability, and slow in vivo degradation to one day better serve the needs of otolaryngologists. This paper intends to demonstrate the mechanical properties of the proposed novel injectable and to evaluate its longevity in animal models.

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Translation, Adaptation, and Preliminary Validation of Dacakis and Davies' “Transsexual Voice Questionnaire (Male to Female)” in French

Transgender MtF people (trans women) consult otorhinolaryngologists and vocologists with the aim of feminizing their voice and being consistently perceived as women. Treatment of these trans women always begins with a vocal assessment that is relatively unspecific as it was originally constructed for individuals with dysphonia.

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Intraoperative identification and definition of “functional” lymphatic collecting vessels for supermicrosurgical lymphatico‐venous anastomosis in treating lymphedema patients

Journal of Surgical Oncology, EarlyView.


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Programmed death‐ligand 1 (PD‐L1) expression in pleomorphic carcinoma of the lung

Journal of Surgical Oncology, EarlyView.


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Breast cancer subtypes and local recurrence rate after surgery for bone metastasis to the extremities

Journal of Surgical Oncology, EarlyView.


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In response to: Long‐term overall survival of patients diagnosed with pure tubular carcinoma of the breast might be affected by increased co‐morbidities

Journal of Surgical Oncology, EarlyView.


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Long‐term overall survival of patients diagnosed with pure tubular carcinoma of the breast might be affected by increased co‐morbidities

Journal of Surgical Oncology, EarlyView.


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Adiponectin Reverses the Proliferative Effects of Estradiol and IGF-1 in Human Epithelial Ovarian Cancer Cells by Downregulating the Expression of Their Receptors

Abstract

The expression of adiponectin receptors AdipoR1 and AdipoR2 has been reported in the human ovary and ovarian cancer tissues. Moreover, adiponectin has been reported to act as an anti-tumor factor by inhibiting cancer cell proliferation. Thus, we investigate whether adiponectin and its receptors influence ovarian cancer development. In the present study, we found that adiponectin was not expressed in the granulosa cell line (COV434), and epithelial ovarian cancer cell lines (OVCAR-3, SKOV-3, and Caov-3). Additionally, we found that AdipoR1 and AdipoR2 expression is lower in epithelial ovarian cancer cells than in granulosa tumor cells. Endogenous 17β-estradiol as well as exogenous estrogens, such as bisphenol A and its chlorinated and brominated analogs do not affect adiponectin receptor expression. We found that adiponectin inhibited the growth of OVCAR-3 and SKOV-3 cells, and that this effect was independent of apoptosis. Moreover, adiponectin reverses the stimulatory effects of 17β-estradiol and insulin-like growth factor 1 on cell proliferation by downregulating the expression of their receptors, whereas progesterone increased the sensitivity of cancer cells to adiponectin by upregulating AdipoR1 and AdipoR2 expression. These results suggest interactions between adiponectin and various ovarian steroid hormone and growth factor pathways in ovarian cancer cells.

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Gait and functionality of individuals with visual impairment who participate in sports

Publication date: Available online 30 March 2018
Source:Gait & Posture
Author(s): Edson Soares da Silva, Gabriela Fischer, Rodrigo Gomes da Rosa, Pedro Schons, Luísa Beatriz Trevisan Teixeira, Wouter Hoogkamer, Leonardo Alexandre Peyré-Tartaruga
BackgroundIndividuals with visual impairment (VI) have often been observed to walk slower than individuals with unimpaired vision. These observations might be confounded by typical low levels of physical activity and greater sedentary behavior in individuals with VI than the overall population.Research questionHere, we compared gait and balance measures between individuals with VI who participate in disability sports, and activity level matched sighted individuals.MethodsWe assessed static balance, anthropometry, self-selected walking speed, locomotion rehabilitation index, and lower limb muscular endurance; and applied physical activity level and fear of falling questionnaires.ResultsIndividuals with VI who participate in disability sports, self-selected a similar walking speed (1.29 ± 0.26 m/s) as active sighted individuals (1.39 ± 0.21 m/s). Locomotor rehabilitation index and muscular endurance of lower limbs were also similar between groups. Individuals with VI presented lower static balance (42.0 ± 17.0s) than the sighted control group (45.0 ± 0s) when the controls were tested with their eyes open. However, no difference was found when the controls were tested with their eyes closed (30.3 ± 17.0s). Furthermore, individuals with VI showed a greater fear of falling.SignificanceIn conclusion, individuals with VI who participate in disability sports, as goalball and football, walk with similar self-selected walking speeds as active sighted individuals, but have slightly worse static balance and fear of falling.



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Trps1 is associated with the multidrug resistance of lung cancer cell by regulating MGMT gene expression

Cancer Medicine, EarlyView.


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Effect of ulixertinib, a novel ERK1/2 inhibitor, on the QT/QTc interval in patients with advanced solid tumor malignancies

Abstract

Purpose

The aim of this analysis was to investigate the potential for ulixertinib (BVD-523) to prolong cardiac repolarization. The mean prolongation of the corrected QT (QTc) interval was predicted at the mean maximum drug concentrations of the recommended phase 2 dose (RP2D; 600 mg BID) and of higher concentrations. In addition, the effect of ulixertinib on other quantitative ECG parameters was assessed.

Methods

In a two-part, phase 1, open-label study in adults with advanced solid tumors, 105 patients [24 in Part 1 (dose escalation) and 81 in Part 2 (cohort expansion)] were included in a QT prolongation analysis. Electrocardiograms (ECGs) extracted from 12-lead Holter monitors, along with time-matched pharmacokinetic blood samples, were collected over 12 h on cycle 1 day 1 and cycle 1 day 15 and analyzed by a core ECG laboratory.

Results

A small increase in heart rate was observed on both study days (up to 5.6 bpm on day 1 and up to 7 bpm on day 15). The estimated mean changes from baseline in the study-specific QTc interval (QTcSS), at the ulixertinib C_max, were − 0.529 ms (90% CI − 6.621, 5.562) on day 1 and − 9.202 ms (90% CI − 22.505, 4.101) on day 15. The concentration: QTc regression slopes were mildly positive but not statistically significant [0.53 (90% CI − 1.343, 2.412) and 1.16 (90% CI − 1.732, 4.042) ms per µg/mL for days 1 and 15, respectively]. Ulixertinib had no meaningful effect on PR or QRS intervals.

Conclusions

Ulixertinib administered to patients with solid tumors at clinically relevant doses has a low risk for QT/QTc prolongation or any other effects on ECG parameters.

Registration

The study is registered at Clinicaltrials.gov (NCT01781429) and was sponsored by BioMed Valley Discoveries.

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Effect of ulixertinib, a novel ERK1/2 inhibitor, on the QT/QTc interval in patients with advanced solid tumor malignancies

Abstract

Purpose

The aim of this analysis was to investigate the potential for ulixertinib (BVD-523) to prolong cardiac repolarization. The mean prolongation of the corrected QT (QTc) interval was predicted at the mean maximum drug concentrations of the recommended phase 2 dose (RP2D; 600 mg BID) and of higher concentrations. In addition, the effect of ulixertinib on other quantitative ECG parameters was assessed.

Methods

In a two-part, phase 1, open-label study in adults with advanced solid tumors, 105 patients [24 in Part 1 (dose escalation) and 81 in Part 2 (cohort expansion)] were included in a QT prolongation analysis. Electrocardiograms (ECGs) extracted from 12-lead Holter monitors, along with time-matched pharmacokinetic blood samples, were collected over 12 h on cycle 1 day 1 and cycle 1 day 15 and analyzed by a core ECG laboratory.

Results

A small increase in heart rate was observed on both study days (up to 5.6 bpm on day 1 and up to 7 bpm on day 15). The estimated mean changes from baseline in the study-specific QTc interval (QTcSS), at the ulixertinib C_max, were − 0.529 ms (90% CI − 6.621, 5.562) on day 1 and − 9.202 ms (90% CI − 22.505, 4.101) on day 15. The concentration: QTc regression slopes were mildly positive but not statistically significant [0.53 (90% CI − 1.343, 2.412) and 1.16 (90% CI − 1.732, 4.042) ms per µg/mL for days 1 and 15, respectively]. Ulixertinib had no meaningful effect on PR or QRS intervals.

Conclusions

Ulixertinib administered to patients with solid tumors at clinically relevant doses has a low risk for QT/QTc prolongation or any other effects on ECG parameters.

Registration

The study is registered at Clinicaltrials.gov (NCT01781429) and was sponsored by BioMed Valley Discoveries.

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Cardiotoxic effects of chemotherapy: A review of both cytotoxic and molecular targeted oncology therapies and their effect on the cardiovascular system

Publication date: Available online 29 March 2018
Source:Critical Reviews in Oncology/Hematology
Author(s): Hani M Babiker, Ali McBride, Michael Newton, Leigh M. Boehmer, Adrienne Goeller Drucker, Mollie Gowan, Manouchkathe Cassagnol, Todd D. Camenisch, Faiz Anwer, James M. Hollands
Cardiotoxic effects of chemotherapy and targeted drugs are ubiquitous and challenging in the field of oncology therapeutics. The broad spectrum of toxicities ranging from ischemic, hypertensive, cardiomyopathic, and arrhythmic complications can present as a significant challenge for clinicians treating cancer patients. If early diagnosis and intervention of cardiotoxic complications is missed, this can lead to delay or abrogation of planned treatment, which can potentially culminate to significant morbidity due to not only the cardiotoxic complications but also the progression of cancer. Hence, full knowledge of cardiovascular complications of chemotherapeutic agents, essential diagnostics tests to order, and appropriate management is paramount to oncologist, oncology pharmacists, and scientific clinical investigators. The aforementioned is particularly true in the current oncology era of plenteous early clinical trials studying several pathway/molecular-targeting agents with an increased cardiotoxic potential and the rapid expedited approval of those drugs by the FDA. Herein, we present a review discussing cardiotoxic effects of drugs and guidelines for management of the toxicities to assist the medical field in general managing patients with cancer.



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Going the distance: are we losing patients along the multiple myeloma treatment pathway?

Publication date: Available online 29 March 2018
Source:Critical Reviews in Oncology/Hematology
Author(s): Evangelos Terpos, Florence Suzan, Hartmut Goldschmidt
Despite data suggesting that individuals with multiple myeloma can benefit from receiving several lines of therapy, and guidelines recommending treatment after relapse, a recent European patient chart review found that only 61% of patients receive second-line treatment. The review found that factors such as old age and previous adverse events lead to physicians deciding not to treat after relapse. However, given the large number of regimens available, treatment can be tailored to individual patients' needs and supportive care measures can help with the management of adverse effects. If approved therapies are not suitable for a patient, guidelines recommend registration in a clinical trial, yet only 7% of patients in the review were participating in such studies. A need for better education on the range of treatments available and their risk–benefit profiles is suggested. Access to new drugs should be examined to maximise the number of patients benefitting from them.



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Clinical importance of DNA repair in sporadic colorectal cancer

Publication date: Available online 29 March 2018
Source:Critical Reviews in Oncology/Hematology
Author(s): Gustavo A. Laporte, Natalia M. Leguisamo, Antonio N. Kalil, Jenifer Saffi
Colorectal cancer (CRC) is the third major cause of cancer-related deaths worldwide. However, despite the scientific efforts to provide a molecular classification to improve CRC clinical practice management, prognosis and therapeutic decision are still strongly dependent on the TNM staging system. Mismatch repair system deficiencies can occur in many organs, but it is mainly a hallmark of CRC influencing clinical outcomes and response to therapy. This review will discuss the effect of the modulation of other DNA repair pathways (direct, excision and double strand break repairs) in the clinical and pathological aspects of colorectal cancer and its potential as prognostic and predictive biomarkers.



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Role of Bevacizumab in Uterine Leiomyosarcoma

Publication date: Available online 29 March 2018
Source:Critical Reviews in Oncology/Hematology
Author(s): Giorgio Bogani, Antonino Ditto, Fabio Martineli, Mauro Signorelli, Valentina Chiappa, Caterina Fonatella, Roberta Sanfilippo, Umberto Leone Roberti Maggiore, Simone Ferrero, Domenica Lorusso, Francesco Raspagliesi
In the recent years, angiogenetic inhibitors have emerged for the treatment of several malignancies. In particular, bevacizumab has proved to be effective in many types of cancers (including sarcoma), but the limitations of antiangiogenic therapy have been shown in practice. Here, we sought to review the current evidence on the role and efficacy of bevacizumab in patients affected by uterine leiomyosarcoma. On April 2017, Literature was searched in order to identify studies reporting outcomes of patients affected either by early stage or advanced/recurred uterine leiomyosarcoma undergoing treatment with bevacizumab, alone or in combination with other chemotherapeutic regimens. Searching the literature data of 69 patients affected by metastatic, unresectable uterine leiomyosarcoma were retrieved; on the contrary, no data regarding the use of bevacizumab in patients with early-stage uterine leiomyosarcoma was published. Current evidence suggested that the addiction of bevacizumab to standard treatment modality does not increase grade 3 or worse toxicity (assessed by CTCAE). Pooled data regarding response rate suggested that 35%, 28%, 26% and 11% of patients experienced objective cure (complete + partial response), stable disease, progressive disease and unknown response, respectively. Data from the only one randomized controlled trial suggested that objective cure rate does not differ from standard chemotherapy treatment, thus limiting the indication to add bevacizumab in patients affected by metastatic, unresectable uterine leiomyosarcoma. The current evidence does not justify the use of bevacizumab into clinical practice. Further randomized studies testing the role of bevacizumab are warranted.



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Targeting the tumor promoting effects of adenosine in chronic lymphocytic leukemia

Publication date: Available online 29 March 2018
Source:Critical Reviews in Oncology/Hematology
Author(s): Yiqing Cai, Lili Feng, Xin Wang
Chronic lymphocytic leukemia (CLL) is a hematological malignancy which is characterized by progressive accumulation of functionally deficient B cells in blood, bone marrow, and lymphatic tissue. The tumor microenvironment (TME) appears to play a critical role in genesis and progression of CLL. High levels of extracellular adenosine (ADO) are detected in CLL as a consequence of expression of ecto-enzymes, such as CD39 and CD73. Extracellular ADO exhibits a broad range of effects on cell cycle control, immunoregulation, angiogenesis and cytokine regulation through both direct and indirect mechanisms. In this review, we focused on the multiple functions and related mechanisms of ADO signaling in CLL generation and progression.



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Genetic alterations crossing the borders of distinct hematopoetic lineages and solid tumors: Diagnostic challenges in the era of high-throughput sequencing in hemato-oncology

Publication date: Available online 29 March 2018
Source:Critical Reviews in Oncology/Hematology
Author(s): Evgenii Shumilov, Johanna Flach, Thomas Pabst, Martin Fiedler, Anne Angelillo-Scherrer, Lorenz Trümper, Raphael Joncourt, Alexander Kohlmann, Ulrike Bacher
Owing to the introduction of next-generation sequencing (NGS) new challenges for diagnostic algorithms and the interpretation of the results for therapeutic decision making in hemato-oncology have arisen. Recurrent somatic mutations crossing the borders between different hematological entities and solid neoplasms have been detected. In analogy to mutant TP53, the same mutation type may occur in myeloid, B- or T-lymphatic malignancies or solid neoplasms. At the same time, a certain mutation can show different prognostic outcomes in different entities and co-existence of certain mutations may change the prognostic relevance. These insights may spark the investigation of targeted therapies with the same substances across different disease entities. This review article summarizes mutations that can emerge in different hematologic and solid malignancies and summarizes other obstacles in the era of modern molecular diagnostics, such as the phenomenon of "clonal hematopoiesis of indeterminate potential" being difficult to interpret in the individual patient.



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Prognostic and Predictive Factors in Patients with Brain Metastases from Solid Tumors: A Review of Published Nomograms

Publication date: Available online 29 March 2018
Source:Critical Reviews in Oncology/Hematology
Author(s): Carsten Nieder, Minesh P. Mehta, Hans Geinitz, Anca L. Grosu
ObjectiveTo review published nomograms that predict endpoints such as overall survival (OS) or risk of intracranial relapse in patients with brain metastases from solid tumors.MethodsThe methods and results of nomogram studies identified by a systematic search were extracted and compared, stratified by endpoint predicted by the respective nomograms. In particular, validation strategies (external/internal), concordance indices (cut-off 0.75) and comparisons to older models were analyzed.ResultsSix publications reported on prediction of OS. Most of these analyses focused on one particular primary tumor site, e.g., breast cancer or hepatocellular carcinoma, while the largest study included different primary tumor sites. The median number of patients was 244. Three of six studies included external validation cohorts. With few exceptions, concordance indices <0.75 were reported. In all studies reporting this endpoint, the nomogram outperformed older prognostic scores. Two nomograms focused on development of new brain metastases after radiosurgery (one externally validated), one on survival free from salvage whole brain radiotherapy (WBRT) after radiosurgery, and one on neurologic and non-neurologic death in patients receiving radiosurgery after WBRT failure. All concordance indices of these 4 nomograms were <0.70.ConclusionTaking into account concordance indices and comparisons to older prognostic models, the most promising, externally validated nomograms are the breast cancer and the non-small cell lung cancer nomogram predicting OS, and the distant brain failure after radiosurgery nomogram. Additional validation studies as well as continuous monitoring of the models' performance appear necessary to ensure their clinical applicability in the present era of rapidly changing treatment paradigms.



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Sarcoma–The Standard-bearer in cancer discovery

Publication date: Available online 29 March 2018
Source:Critical Reviews in Oncology/Hematology
Author(s): Jared W. Potter, Kevin B. Jones, Jared J. Barrott
Sarcoma is a rare tumor type that occurs most frequently in connective tissue. Despite its uncommon occurrence, sarcoma research has provided the means for groundbreaking research that has advanced our understanding of general cancer mechanisms. It is through sarcoma research that the pioneering efforts of cancer immunotherapy were explored, that we understand the inherent genetic nature of cancer mutations, and that we appreciate the subclassification of general cancer types to make more accurate prognoses. This review explores the brief history of sarcoma research and what sarcomas can still teach us about the future of cancer research, especially in regard to novel immunotherapy targets, the role of epigenetics in disease progression and chemoresistance, and the benefits of more focused clinical trials.



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Hearing What You See

A recent gif image has been circulating  where individual can report hearing a "thud" sound

Tweet

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