Αρχειοθήκη ιστολογίου

Πέμπτη 24 Δεκεμβρίου 2015

Morbid Obesity as Early Manifestation of Occult Hypothalamic-Pituitary LCH with Delay in Treatment.

Morbid Obesity as Early Manifestation of Occult Hypothalamic-Pituitary LCH with Delay in Treatment.

Case Rep Oncol Med. 2015;2015:915716

Authors: Keates-Baleeiro J, Rincon M

Abstract
Morbid obesity presents unique challenges in managing additional disease processes. A 16-year-old male with a history of central diabetes insipidus (DI) and hypothyroidism developed destructive lesions in both his right mandible and brain, which were not discovered until the patient presented for tinnitus, 8 years after his initial diagnosis with DI. Langerhans cell histiocytosis (LCH) was diagnosed on pathologic biopsy. The patient's initial body mass index (BMI) was 54.5 kg/m(2) so a unique treatment approach with single agent cladribine (2-CdA) was offered as traditional steroid therapy could worsen his endocrine dysfunction. The patient presented with neurodegenerative sequelae from the central LCH, possibly due to a delay in diagnosis and therapy. This case highlights difficulties in managing obese patients in an oncology setting and provides an illustrative case of how obesity may mask other comorbid conditions. Close supervision of complex obese patients with coordinated endocrinology and oncology care is vital. For the primary care practitioner, monitoring abrupt changes in BMI with serial cranial imaging may lead to a prompt diagnosis and prevention of further neurodegenerative effects. The use of 2-CdA was found to successfully bring the patient's LCH into remission without the additional risks of steroid therapy in a morbidly obese patient.

PMID: 26697250 [PubMed]



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The Correlation of the Tinnitus Handicap Inventory with Depression and Anxiety in Veterans with Tinnitus.

The Correlation of the Tinnitus Handicap Inventory with Depression and Anxiety in Veterans with Tinnitus.

Int J Otolaryngol. 2015;2015:689375

Authors: Hu J, Xu J, Streelman M, Xu H, Guthrie O

Abstract
Objective. The mechanisms of tinnitus are known to alter neuronal circuits in the brainstem and cortex, which are common to several comorbid conditions. This study examines the relationship between tinnitus and anxiety/depression. Subjects and Methods. Ninety-one male veterans with subjective tinnitus were enrolled in a Veterans Affairs Tinnitus Clinic. The Tinnitus Handicap Inventory (THI) was used to assess tinnitus severity. ICD-9 codes for anxiety/depression were used to determine their prevalence. Pure tone averages (PTA) were used to assess hearing status. Results. Descriptive analyses revealed that 79.1% of the 91 tinnitus sufferers had a diagnosis of anxiety, 59.3% had depression, and 58.2% suffered from both anxiety/depression. Patients with anxiety had elevated total THI scores as compared to patients without anxiety (p < 0.05). Patients with anxiety or depression had significantly increased Functional and Emotional THI scores, but not Catastrophic THI score. Significant positive correlations were illustrated between the degree of tinnitus and anxiety/depression (p < 0.05). There were no differences in PTA among groups. Conclusions. A majority of patients with tinnitus exhibited anxiety and depression. These patients suffered more severe tinnitus than did patients without anxiety and depression. The data support the need for multidisciplinary intervention of veterans with tinnitus.

PMID: 26697070 [PubMed]



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[Multi-center study on the treatment of sudden deafness accompanied with tinnitus].

[Multi-center study on the treatment of sudden deafness accompanied with tinnitus].

Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2015 Jun;50(6):453-7

Authors: Zhao H, Dong H, Cheng Y, Ma Y, Lin P, Zhong S, Kang H, Qian Y, Hu G, Chinese sudden hearing loss multi-center clinical study group

Abstract
OBJECTIVE: To investigate the clinical characteristics and the effects of different drug therapies in patients of sudden deafness accompanied with tinnitus.
METHODS: The international standardized clinical research methods, the unified design and program were used in the study. The patients of sudden deafness accompanied with tinnitus, aged between 18 to 65 years old, were recruited, whose duration was less than two weeks with no medication. The patients were divided into four types according to the hearing curve: type A was acute sensorineural hearing loss in low tone frequencies, type B was acute sensorineural hearing loss in high tone frequencies, type C was acute sensorineural hearing loss in all frequencies and type D was total deafness. Each type had four different treatment programs, based on the unified designed randomized table.
RESULTS: A total of 1024 cases with single side sudden deafness were recruited in the study by 33 hospitals in China from August 2007 to October 2011. Among the 1024 cases, 922 cases were accompanied with tinnitus (90.04%). By classification of audiogram, among the 922 cases, 169 cases were type A (82.44%), 127 cases were type B (90.07%), 370 cases were type C (92.04%), and 256 cases were type D (92.75%). The tinnitus mostly was persistent and low tone tinnitus. The degree of the tinnitus was mostly 2-3 grade. The curative effects of different types were analyzed, type A had the highest rate of 96.18%, type C was 87.75%, type B was 81.51%, and type D had the lowest rate of 75.32%. Significant difference of curative rate between different types was detected (χ(2) = 125.33, P = 0.000). There had no significant difference between the four different treatment groups (all P > 0.05).
CONCLUSIONS: In the cases with single side sudden deafness accompanied with tinnitus, the type in low tone frequencies has the best curative effect, followed by the type in all frequencies. The type in high tone frequencies and the total deafness type have poor curative results. The steroid plays a good effect in the treatment.

PMID: 26695794 [PubMed - in process]



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[Application of scapula osteomyocutaneous flap in the repair of maxillary defect].

[Application of scapula osteomyocutaneous flap in the repair of maxillary defect].

Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2015 Oct;50(10):814-7

Authors: Wu Y, Li D, Wang X, Xu Z

Abstract
OBJECTIVE: Preliminary study on free scapula osteomyocutaneous flap to repair maxillary defect.
METHODS: Central maxillofacial soft and hard tissue defect after nasal sinus or oral tumor surgery was repaired with free scapual osteomyocutaneous flap in 4 patients to reconstruct their maxillofacial functions. The primary tumors included an ameloblastoma, a recurrent low-grade mucous epidermoid carcinoma a jaw sarcoma and a squamous cell carcinoma.
RESULTS: All the 4 cases had good wound healing within 2 weeks after surgery, with no complications, could take in semifluid food after 3 weeks, and had clear language communication after 1 month. Three cases wore denture after 2 months and recovered maxillofacial contour and partial chewing function, and had no tumor recurrences with the follow-up of 37, 25 and 10 months respectively. One case of maxilla sarcomas had recurrence with invasion of parapharyngeal space and skull base and pulmonary metastasis 9 months after surgery, who gave up further treatment and died 1 year later. No obvious dysfunction occurred in shoulder and back donation sites and well blood supply in transplanted bones were showed with CT and bone scan.
CONCLUSIONS: Scapula osteomyocutaneous flap has some advantages including reliable blood supply, hidden incision and little affect on the donation site, and it can apply with multiple tissues including bone, muscle, and skin for repair. This flap also has good shape adaptability and availability. So scapula osteomyocutaneous flap is a satisfactory method for the repair of facial maxillary complex defects. But some limitations exist in the flap, by which less amount of bone can be applied and more operation time is required due to the changes of patient's body position during surgery.

PMID: 26696474 [PubMed - in process]



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Postoperative Submandibular Gland Swelling following Craniotomy under General Anesthesia.

Postoperative Submandibular Gland Swelling following Craniotomy under General Anesthesia.

Case Rep Otolaryngol. 2015;2015:949483

Authors: Nakanishi H, Tono T, Ibusuki S

Abstract
Objective. Reporting of a rare case of postoperative submandibular gland swelling following craniotomy. Case Report. A 33-year-old male underwent resection for a brain tumor under general anesthesia. The tumor was resected via a retrosigmoid suboccipital approach and the patient was placed in a lateral position with his face down and turned to the right. Slight swelling of the right submandibular gland was observed just after the surgery. Seven hours after surgery, edematous change around the submandibular gland worsened and he required emergent reintubation due to airway compromise. The cause of submandibular gland swelling seemed to be an obstruction of the salivary duct due to surgical positioning. Conclusion. Once submandibular swelling and edematous change around the submandibular gland occur, they can worsen and compromise the air way within several hours after operation. Adequate precaution must be taken for any predisposing skull-base surgery that requires strong cervical rotation and flexion.

PMID: 26697254 [PubMed]



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Stereotactic radiation therapy for skull base recurrences: Is a salvage approach still possible?

Stereotactic radiation therapy for skull base recurrences: Is a salvage approach still possible?

Rep Pract Oncol Radiother. 2015 Nov-Dec;20(6):430-9

Authors: Krengli M, Apicella G, Deantonio L, Paolini M, Masini L

Abstract
AIM: A literature review was performed to analyse the role of stereotactic radiotherapy given in a single shot or in a fractionated fashion for recurrent skull base tumours in order to ascertain if it can be a real salvage approach.
BACKGROUND: The management of recurrent skull base tumours can have a curative or palliative intent and mainly includes surgery and RT.
MATERIALS AND METHODS: One-thousand-ninety-one articles were found in the search databases and the most relevant of them were analysed and briefly described.
RESULTS: Data on recurrences of meningioma, pituitary adenoma, craniopharyngioma, chordoma and chondrosarcoma, vestibular schwannoma, glomus jugulare tumours, olfactory neuroblastoma and recurrences from head and neck tumours invading the base of skull are reported highlighting the most relevant results in terms of local control, survival, side effects and complications.
CONCLUSIONS: In conclusion, it emerges that SRS and FSRT are effective and safe radiation modalities of realize real salvage treatment for recurrent skull base tumours.

PMID: 26696783 [PubMed]



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[Involvement of MAPK signal transduction pathways in regulating the expression of glucocorticoid receptor isoforms in nasal polyp epithelia in vitro].

[Involvement of MAPK signal transduction pathways in regulating the expression of glucocorticoid receptor isoforms in nasal polyp epithelia in vitro].

Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2015 Oct;50(10):829-35

Authors: Wang Z, Lyu H, Zhang M, Liu J, Zhang Y, Han X, Zhang Q

Abstract
OBJECTIVE: To explore the upstream signal transduction mechanism responsible for the decrease of the ratio of the two glucocorticoid receptor (GR) subunits (GRα and GRβ) in nasal polyp in vitro.
METHODS: The GRα/GRβ decrease cell model was established by lipopolysaccharide (LPS)-induced human nasal epithelia (HNE) of nasal polyp in vitro. Changes in the protein and mRNA expression of GRα, GRβ and the key enzymes in the p38MAPK, ERK and JNK signal pathways were measured, respectively, before and after being induced with different doses of LPS and specific inhibitors of p38MAPK, JNK and ERK. SPSS 16.0 software (Analysis of variance, ANOVA) was used to analyze the data.
RESULTS: With the LPS induction, the GRα/GRβ ratio declined in both a time-dependent manner and a concentration-dependent manner in HNE, which demonstrated the successful establishment of a GRα/GRβ decrease model in vitro. After cultured HNE were induced with the same set of LPS, the p38MAPK, ERK and JNK signal pathways were also activated. The mRNA expression of p38MAPK and JNK in each LPS-induced group (17.14 ± 1.50, 22.34 ± 2.78, 30.12 ± 1.07; 2.51 ± 0.13, 3.79 ± 0.67, 4.41 ± 0.83; 25.62 ± 1.77, 31.33 ± 1.97, 37.25 ± 2.46) was significantly higher than that (7.39 ± 0.31, 2.04 ± 0.34, 2.38 ± 0.35) in the control group (χ(2) value was 15.347, 18.331, 14.671, all P < 0.01). Either a specific inhibitor (SB203580) of the p38MAPK pathway or a specific inhibitor (SP600125) of the JNK pathway increased the GRα/GRβ ratio at the meantime of inhibiting their pathways. SB203580 exhibited a much stronger increase effect on GRα/GRβ ratio than SP600125. The specific inhibitors (PD98059) of ERK had no influence on the expression of GR isoforms.
CONCLUSIONS: The above results demonstrated that the decrease of GRα/GRβ ratio in HNE induced by LPS in vitro is mediated through the p38MAPK and JNK signal pathways. It is possible to improve the treatment effect of GC resistance in nasal polyp by targeting these specific signal pathways.

PMID: 26696477 [PubMed - in process]



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Immediate effects of kinesio taping on fixed postural alignment and foot balance in stroke patients.

Immediate effects of kinesio taping on fixed postural alignment and foot balance in stroke patients.

J Phys Ther Sci. 2015 Nov;27(11):3537-40

Authors: Yang SR, Heo SY, Lee HJ

Abstract
[Purpose] The main aim of this study was to identify the short-term effects of Kinesio taping (KT) on the static body alignment and overall balance function presented by the coordinate and foot balance in stroke patients. [Subjects and Methods] Thirty-eight stroke subjects were randomly allocated into the study groups. The kinematic analysis measured deviation or changes from standard body alignment and foot pressure by the human anatomy-based coordinates were examined using the Shisei Innovation System PA200 ver.9.0. [Results] The glabellas on the front view, larynx on the front view, rt. greater tubercle of the humerus (vertical changes), lt. greater tubercle of the humerus (vertical changes), posterior superior iliac spine, and greater trochanter (horizontal changes) showed statistically significant decreases, indicating dislocation from the axis center, after taping. [Conclusion] The clinical use of KT for stroke patients who have asymmetrical and imbalanced body posture could be an optimal therapeutic approach. Since more evidence based practices are needed, future studies should include large numbers of subjects and examine diverse KT application patterns.

PMID: 26696733 [PubMed]



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[One case of inflammatory myofibroblastic tumor resembling advanced carcinoma in the larynx].

[One case of inflammatory myofibroblastic tumor resembling advanced carcinoma in the larynx].

Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2015 Sep;50(9):777-8

Authors: Sun F, Xia Q, Rong J, Xia Y, Wang H

PMID: 26696355 [PubMed - in process]



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[Clinicopathologic study with sarcomatoid carcinoma of the larynx: report of eight cases].

[Clinicopathologic study with sarcomatoid carcinoma of the larynx: report of eight cases].

Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2015 Jun;50(6):512-4

Authors: Lyu D, Yang H, Xiong S, Zheng Y, Long L, Yu R, Zhu J, Zhang Q

PMID: 26695807 [PubMed - in process]



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[Long-term efficacy of triple semicircular canal occlusion in the treatment of intractable Meniere's disease].

[Long-term efficacy of triple semicircular canal occlusion in the treatment of intractable Meniere's disease].

Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2015 Sep;50(9):733-7

Authors: Zhang D, Fan Z, Han Y, Li Y, Wang H

Abstract
OBJECTIVE: To explore the long-term efficacy and safety of triple semicircular canal occlusion (TSCO) in the treatment of intractable Meniere's disease (MD) so as to provide an alternative surgical procedure for treating this disorder.
METHODS: Data from Forty-nine patients, who were referred to our hospital and diagnosed with unilateral MD strictly meeting the criteria issued by Chinese Academy of Otolaryngology-Head and Neck Surgery Committee (2006) from Dec. 2010 to Jul. 2012, were retrospectively analyzed in this work. Forty-nine patients, in whom the standardized conservative treatment was given at least one year and frequent vertigo still occurred, received TSCO. Vertigo control and auditory function were measured. Pure tone audiometry, caloric test, and cervical vestibular evoked myogenic potential (cVEMP) were performed for evaluation of audiological and vestibular function. Magnetic resonance hydrograph of inner ear was performed in patients received TSCO after 2 years for the observation of morphology of membranous labyrinth. Postoperative follow-up period was more than 2 years.
RESULTS: According to the preoperative staging of hearing, among these 49 patients, there were 2 cases in stage II (with an average hearing threshold of 25-40 dBHL), 40 in stage III (41-70 dBHL) and 7 in stage IV (over 70 dBHL). Vertigo was controlled effectively in all 49 cases in two-year follow-up, of which 40 cases (81.6%) were completely controlled and 9 cases (18.4%) were substantially controlled after surgery. The rate of hearing preservation was 69.4% and the rate of hearing loss was 30.6%. Post-operatively, all patients suffered from temporary vertigo and balance disorders. Vertigo was disappeared in all patients within 3-5 days, while averagely recovered after 13.5 days. Two years afer treatment, loss of semicircular canal function by caloric test was found in the operation side of all patients and no change in cVEMP test was noted. All patients had no facial paralysis, cerebrospinal fluid leakage, and other complications. Magnetic resonance hydrograph of inner ear showed that endolymph fluid in the position of plugging had no water after 2-years of TSCO.
CONCLUSIONS: TSCO, which can reduce vertiginous symptoms effectively in patients with intractable MD in long-term follow-up, represents an effective and safe therapy for this disorder. TSCO is expected to be used as an alternative procedure for the treatment of MD in selected patients suffering from severe hearing loss or recurrence after endolymphatic sac surgery.

PMID: 26696345 [PubMed - in process]



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Immediate effects of Kinesio Taping on the movement of the hyoid bone and epiglottis during swallowing by stroke patients with dysphagia.

Immediate effects of Kinesio Taping on the movement of the hyoid bone and epiglottis during swallowing by stroke patients with dysphagia.

J Phys Ther Sci. 2015 Nov;27(11):3355-7

Authors: Heo SY, Kim KM

Abstract
[Purpose] The purpose of this study was to identify the effects of Kinesio Taping (KT) on the swallowing function of stroke patients. [Subjects and Methods] Twenty-two stroke patients were randomly assigned to two groups; an experimental group which received KT, and a control group which received no taping intervention. Two-dimensional kinematic analysis was used to determine the displacement of the hyoid bone and the angular variation of the epiglottis using human anatomy-based coordinates. The functional dysphagia scale (FDS) was determined by a videofluoroscopic study (VFSS). [Results] The experimental group presented statistically significant improvements in kinematic changes of the vertical excursion of the hyoid bone and epiglottal rotation. [Conclusion] Clinical use of KT for dysphagia patients should be considered as a treatment approach. In future research, more subjects and more diverse patterns should be studied to accumulate further evidence.

PMID: 26696697 [PubMed]



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OtoRhinoLaryngology & Medicine,New Articles,December 2th,2015

The Australian Work Exposures Study: Occupational Exposure to Lead and Lead Compounds

Alexandros G. SfakianakisστοΝοσολογίαΠριν από 41 δευτερόλεπτα
Introduction: The aims of this study were to produce a population-based estimate of the prevalence of work-related exposure to lead and its compounds, to identify the main circumstances of exposures, and to collect information on the use of workplace control measures designed to decrease those exposures. Methods: Data came from the Australian Workplace Exposures Study, a nationwide telephone survey which investigated the current prevalence and circumstances of work-related exposure to 38 known or suspected carcinogens, including lead, among Australian workers aged 18–65 years. ...περισσότερα »

A Comparison of the {beta}-Substitution Method and a Bayesian Method for Analyzing Left-Censored Data

Alexandros G. SfakianakisστοΝοσολογίαΠριν από 41 δευτερόλεπτα
Classical statistical methods for analyzing exposure data with values below the detection limits are well described in the occupational hygiene literature, but an evaluation of a Bayesian approach for handling such data is currently lacking. Here, we first describe a Bayesian framework for analyzing censored data. We then present the results of a simulation study conducted to compare the β-substitution method with a Bayesian method for exposure datasets drawn from lognormal distributions and mixed lognormal distributions with varying sample sizes, geometric standard deviations (GS...περισσότερα »

Evidence that Bacteriophage {lambda} Lysogens May Induce in Response to the Proton Motive Force Uncoupler CCCP

Alexandros G. SfakianakisστοΛοίμωξηΠριν από 41 δευτερόλεπτα
We describe a genetic β-galactoside reporter system using a disk diffusion assay on MacConkey Lactose agar petri plates to monitor maintenance of the bacteriophage prophage state and viral induction in *Escherichia coli* K-12. Evidence is presented that the phage major lytic promoters, *pL* and *pR*, are activated when cells containing the reporters are exposed to the energy poison carbonyl cyanide *m*-chlorophenyl hydrazine, CCCP. This uncoupler of oxidative phosphorylation inhibits ATP synthesis by collapsing the proton motive force. Expression of the lytic promoters in response ... περισσότερα »

Announcements

Alexandros G. SfakianakisστοOroFacial Medicine by Alexandros G.SfakianakisΠριν από 41 δευτερόλεπτα
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Editorial Board

Alexandros G. SfakianakisστοOroFacial Medicine by Alexandros G.SfakianakisΠριν από 41 δευτερόλεπτα
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Dislocated Tongue Muscle Attachment and Cleft Palate Formation

orlsfakianakisστοOtoRhinoLaryngology by Sfakianakis G.AlexandrosΠριν από 44 δευτερόλεπτα
In Pierre Robin sequence, a retracted tongue due to micrognathia is thought to physically obstruct palatal shelf elevation and thereby cause cleft palate. However, micrognathia is not always associated with palatal clefting. Here, by using the Bmp7-null mouse model presenting with cleft palate and severe micrognathia, we provide the first causative mechanism linking the two.… Continue reading Dislocated Tongue Muscle Attachment and Cleft Palate Formation

Effect of treatment with rosiglitazone on high-sensitivity cardiac troponin levels among patients with type 2 diabetes mellitus

orlsfakianakisστοOtoRhinoLaryngology by Sfakianakis G.AlexandrosΠριν από 44 δευτερόλεπτα
Objective: To assess the impact of intermediate-term treatment with rosiglitazone on high-sensitivity cardiac troponin T levels among patients with type 2 diabetes mellitus with or at high risk of coronary artery disease. Methods: High-sensitivity cardiac troponin T level was measured at baseline and after 6 months of study treatment in a randomized trial comparing rosiglitazone… Continue reading Effect of treatment with rosiglitazone on high-sensitivity cardiac troponin levels among patients with type 2 diabetes mellitus

Effect of Long-Term Periodontal Care on Hemoglobin A1c in Type 2 Diabetes

orlsfakianakisστοOtoRhinoLaryngology by Sfakianakis G.AlexandrosΠριν από 44 δευτερόλεπτα
This was a prospective cohort study evaluating 126,805 individuals with diabetes and periodontal disease receiving care at all Veterans Administration medical centers and clinics in the United States from 2005 through 2012. The exposures were periodontal treatment at baseline (PT0) and at follow-up (PT2). The outcomes were change in HbA1c following initial treatment (HbA1c1) and… Continue reading Effect of Long-Term Periodontal Care on Hemoglobin A1c in Type 2 Diabetes

Gallstones

orlsfakianakisστοOtoRhinoLaryngology by Sfakianakis G.AlexandrosΠριν από 44 δευτερόλεπτα
Gallstones: Stones that form when substances in the bile harden. Gallstones can be as small as a grain of sand or as large as a golf ball. There can be just one large stone, hundreds of tiny stones, or any combination. Gallstones can block the normal flow of bile if they lodge in any of… Continue reading Gallstones

MALT1 Inhibition of Oral Carcinoma Cell Invasion and ERK/MAPK Activation

orlsfakianakisστοOtoRhinoLaryngology by Sfakianakis G.AlexandrosΠριν από 44 δευτερόλεπτα
The expression of mucosa-associated lymphoid tissue 1 (MALT1) that activates nuclear factor (NF)–B in lymphocyte lineages is rapidly inactivated in oral carcinoma cells at the invasive front and the patients with worst prognosis. However, its mechanism to accelerate carcinoma progression remains unknown, and this study was carried out to examine the role in invasion. HSC2… Continue reading MALT1 Inhibition of Oral Carcinoma Cell Invasion and ERK/MAPK Activation

Mit einem Urologen im Urlaub

orlsfakianakisστοOtoRhinoLaryngology by Sfakianakis G.AlexandrosΠριν από 44 δευτερόλεπτα
„Sie sind doch Arzt!“ „Du hast es gut“, sagte meine Freundin wieder einmal zu mir. „Mit einem Arzt im Urlaub — was soll Euch da schon passieren!“ „Mit einem Urologen!“ verbesserte ich, wobei mir klar war, dass sie auf solche Feinheiten nicht achtet. Wenn die wüsste! from #Medicine-SfakianakisAlexandros via o.lakala70 on Inoreader http://ift.tt/1YzA8Ma via IFTTT… Continue reading Mit einem Urologen im Urlaub

Manipulation of the N-terminal sequence of the Borna disease virus X protein improves its mitochondrial targeting and neuroprotective potential Research Communication

orlsfakianakisστοOtoRhinoLaryngology by Sfakianakis G.AlexandrosΠριν από 44 δευτερόλεπτα
To favor their replication, viruses express proteins that target diverse mammalian cellular pathways. Due to the limited size of many viral genomes, such proteins are endowed with multiple functions, which require targeting to different subcellular compartments. One salient example is the X protein of Borna disease virus, which is expressed both at the mitochondria and… Continue reading Manipulation of the N-terminal sequence of the Borna disease virus X protein improves its mitochondrial targeting and neuroprotective potential Research Communication

Inpatient Pediatric Tonsillectomy: Does Hospital Type Affect Cost and Outcomes of Care?

orlsfakianakisστοOtoRhinoLaryngology by Sfakianakis G.AlexandrosΠριν από 44 δευτερόλεπτα
Objective To ascertain whether hospital type is associated with differences in total cost and outcomes for inpatient tonsillectomy. Study Design Cross-sectional analysis of the 2006, 2009, and 2012 Kids’ Inpatient Database (KID). Subjects and Methods Children ≤18 years of age undergoing tonsillectomy with/without adenoidectomy were included. Risk-adjusted generalized linear models assessed for differences in hospital… Continue reading Inpatient Pediatric Tonsillectomy: Does Hospital Type Affect Cost and Outcomes of Care?

Decreased ovarian reserve, dysregulation of mitochondrial biogenesis, and increased lipid peroxidation in female mouse offspring exposed to an obesogenic maternal diet Research Communication

orlsfakianakisστοOtoRhinoLaryngology by Sfakianakis G.AlexandrosΠριν από 44 δευτερόλεπτα
Maternal diet during pregnancy influences the later life reproductive potential of female offspring. We investigate the molecular mechanisms underlying the depletion of ovarian follicular reserve in young adult females following exposure to obesogenic diet in early life. Furthermore, we explore the interaction between adverse maternal diet and postweaning diet in generating reduced ovarian reserve. Female… Continue reading Decreased ovarian reserve, dysregulation of mitochondrial biogenesis, and increased lipid peroxidation in female mouse offspring exposed to an obesogenic maternal... περισσότερα »

Cardioprotection and Safety of Dexrazoxane in Patients Treated for Newly Diagnosed T-Cell Acute Lymphoblastic Leukemia or Advanced-Stage Lymphoblastic Non-Hodgkin Lymphoma: A Report of the Childrens Oncology Group Randomized Trial Pediatric Oncology Group 9404 Pediatric Oncology

orlsfakianakisστοOtoRhinoLaryngology by Sfakianakis G.AlexandrosΠριν από 44 δευτερόλεπτα
Purpose To determine the oncologic efficacy, cardioprotective effectiveness, and safety of dexrazoxane added to chemotherapy that included a cumulative doxorubicin dose of 360 mg/m2 to treat children and adolescents with newly diagnosed T-cell acute lymphoblastic leukemia (T-ALL) or lymphoblastic non-Hodgkin lymphoma (L-NHL). Patients and Methods Patients were treated on Pediatric Oncology Group Protocol POG 9404,… Continue reading Cardioprotection and Safety of Dexrazoxane in Patients Treated for Newly Diagnosed T-Cell Acute Lymphoblastic Leukemia or Advanced-Stage Lymphoblastic No... περισσότερα »

Impaired immune regulation after radioiodine therapy for Graves’ disease and the protective effect of Methimazole

Abstract Both therapies for Graves’ disease (GD), radioactive iodine (RAI) and antithyroid drugs (ATD), were reported to have specific immune effects. We aimed at investigating the effects of RAI therapy on cellular subsets involved in immune regulation. We conducted a thirty day follow-up prospective cohort study of adult patients. Patients eligible for RAI therapy at […]

Understanding why low-risk patients accept vaccines: a socio-behavioral approach

Abstract Background Vaccines are one of the most important public health interventions. Understanding factors associated with vaccine acceptance is critical. The objectives of this study were to evaluate the impact of the three constructs of the Theory of Planned Behavior (TPB) on the intention to be vaccinated among healthy individuals being seen for pre-travel care, […]

Prevalence and correlates of intimate partner violence among family planning clients in Conakry, Guinea

Abstract Background Intimate partner violence (IPV) is a global public health problem that affects women’s physical, mental, sexual and reproductive health. Very little data on IPV experience and FP use is available in resource-poor settings, such as in West Africa. The aim of this study was to describe the prevalence, patterns and correlates of IPV […]

Innovations in the Indian pharmaceutical industry: The present scenario and an agenda for the future

The Indian industry has grown manifold since independence and today is ranked among the major global players. This has been a result of several factors which together have provided the right environment for India’s growth. However, given the fast pace of change, appropriate course corrections and suitable policy interventions are necessary for sustenance of future […]

Medical specialists’ knowledge, perceptions and views about generic medicines in Malaysia: Findings from a qualitative study and the implications

Background and objective Medical specialists have an essential role in promotion of generic medicines. However, misconceptions and negative perceptions about generic medicines among them could be a barrier to utilization of generic medicines. Therefore, the aim of this study was to explore their knowledge, perceptions and views about generic medicines. Methods A qualitative methodology was […]

Innovations in the Indian pharmaceutical industry: The present scenario and an agenda for the future

The Indian industry has grown manifold since independence and today is ranked among the major global players. This has been a result of several factors which together have provided the right environment for India’s growth. However, given the fast pace of change, appropriate course corrections and suitable policy interventions are necessary for sustenance of future […]

Medical specialists’ knowledge, perceptions and views about generic medicines in Malaysia: Findings from a qualitative study and the implications

Background and objective Medical specialists have an essential role in promotion of generic medicines. However, misconceptions and negative perceptions about generic medicines among them could be a barrier to utilization of generic medicines. Therefore, the aim of this study was to explore their knowledge, perceptions and views about generic medicines. Methods A qualitative methodology was […]

Mit einem Urologen im Urlaub

„Sie sind doch Arzt!“ „Du hast es gut“, sagte meine Freundin wieder einmal zu mir. „Mit einem Arzt im Urlaub — was soll Euch da schon passieren!“ „Mit einem Urologen!“ verbesserte ich, wobei mir klar war, dass sie auf solche Feinheiten nicht achtet. Wenn die wüsste! from #Medicine-SfakianakisAlexandros via o.lakala70 on Inoreader http://ift.tt/1YzA8Ma via IFTTT

Lymph Node Yield as a Predictor of Survival in Pathologically Node Negative Oral Cavity Carcinoma

Objective Even after a pathologically node-negative (pN0) neck dissection for oral cavity squamous cell carcinoma (SCC), patients may develop regional recurrence. In this study, we (1) hypothesize that an increased number of lymph nodes removed (lymph node yield) in patients with pN0 oral SCC predicts improved survival and (2) explore predictors of survival in these […]

Laryngeal Adenoid Cystic Carcinoma: A Systematic Review

Objective Adenoid cystic carcinoma is a malignant minor salivary gland tumor that represents &lt;1% of all laryngeal tumors. The submucosal location of laryngeal adenoid cystic carcinoma (LACC) results in delayed presentation. Here, we present the first systematic review of reported cases of LACC to determine trends in presentation, diagnostic and treatment modalities, and patient outcome. […]

Impact of Maintenance Therapy for the Prevention of Peri-implant Diseases: A Systematic Review and Meta-analysis

At the present time, peri-implantitis has become a global burden that occurs with a frequency from 1% to 47% at implant level. Therefore, we aimed herein at assessing the impact of peri-implant maintenance therapy (PIMT) on the prevention of peri-implant diseases. Electronic and manual literature searches were conducted by 3 independent reviewers using several databases, […]

Medical specialists’ knowledge, perceptions and views about generic medicines in Malaysia: Findings from a qualitative study and the implications

Background and objective Medical specialists have an essential role in promotion of generic medicines. However, misconceptions and negative perceptions about generic medicines among them could be a barrier to utilization of generic medicines. Therefore, the aim of this study was to explore their knowledge, perceptions and views about generic medicines. Methods A qualitative methodology was […]

London Charter on Oral Health Inequalities

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Mit einem Urologen im Urlaub

„Sie sind doch Arzt!“ „Du hast es gut“, sagte meine Freundin wieder einmal zu mir. „Mit einem Arzt im Urlaub — was soll Euch da schon passieren!“ „Mit einem Urologen!“ verbesserte ich, wobei mir klar war, dass sie auf solche Feinheiten nicht achtet. Wenn die wüsste! from #Medicine-SfakianakisAlexandros via o.lakala70 on Inoreader http://ift.tt/1YzA8Ma via IFTTT

Effect of Long-Term Periodontal Care on Hemoglobin A1c in Type 2 Diabetes

This was a prospective cohort study evaluating 126,805 individuals with diabetes and periodontal disease receiving care at all Veterans Administration medical centers and clinics in the United States from 2005 through 2012. The exposures were periodontal treatment at baseline (PT0) and at follow-up (PT2). The outcomes were change in HbA1c following initial treatment (HbA1c1) and […]

Lymph Node Yield as a Predictor of Survival in Pathologically Node Negative Oral Cavity Carcinoma

Objective Even after a pathologically node-negative (pN0) neck dissection for oral cavity squamous cell carcinoma (SCC), patients may develop regional recurrence. In this study, we (1) hypothesize that an increased number of lymph nodes removed (lymph node yield) in patients with pN0 oral SCC predicts improved survival and (2) explore predictors of survival in these […]

Dislocated Tongue Muscle Attachment and Cleft Palate Formation

In Pierre Robin sequence, a retracted tongue due to micrognathia is thought to physically obstruct palatal shelf elevation and thereby cause cleft palate. However, micrognathia is not always associated with palatal clefting. Here, by using the Bmp7-null mouse model presenting with cleft palate and severe micrognathia, we provide the first causative mechanism linking the two. […]

Laryngeal Adenoid Cystic Carcinoma: A Systematic Review

Objective Adenoid cystic carcinoma is a malignant minor salivary gland tumor that represents &lt;1% of all laryngeal tumors. The submucosal location of laryngeal adenoid cystic carcinoma (LACC) results in delayed presentation. Here, we present the first systematic review of reported cases of LACC to determine trends in presentation, diagnostic and treatment modalities, and patient outcome. […]

MALT1 Inhibition of Oral Carcinoma Cell Invasion and ERK/MAPK Activation

The expression of mucosa-associated lymphoid tissue 1 (MALT1) that activates nuclear factor (NF)–B in lymphocyte lineages is rapidly inactivated in oral carcinoma cells at the invasive front and the patients with worst prognosis. However, its mechanism to accelerate carcinoma progression remains unknown, and this study was carried out to examine the role in invasion. HSC2 […]

Frontal Sinus Malignancies: A Population-Based Analysis of Incidence and Survival

Objective Primary neoplasms originating in the frontal sinus are rare. As such, existing literature describing frontal sinus malignancies (a subset of frontal sinus neoplasms) is limited. Prognostic implications of these malignancies are difficult to determine. This study seeks to analyze trends in epidemiology, clinicopathology, incidence, and survival for these rare malignancies. Study Design Retrospective database […]

These new articles for Endocrinology are available online

Alexandros G. SfakianakisστοΕνδοκρινολογίαΠριν από 52 δευτερόλεπτα
These new articles for Endocrinology are available online ------------------------------ Early Release Endocrinology ------------------------------ [image: Endocrinology masthead] ------------------------------ ------------------------------ Endocrinology Home Page Current Issue Past Issues ------------------------------ ------------------------------ ------------------------------ ------------------------------ Isolation and characterization of fetal Leydig progenitor cells of male mice Miki Inoue, et al. | Endocrinology | Dec 23, 2015Chronic glucose exposure systematically shifts... περισσότερα »

Dislocated Tongue Muscle Attachment and Cleft Palate Formation

In Pierre Robin sequence, a retracted tongue due to micrognathia is thought to physically obstruct palatal shelf elevation and thereby cause cleft palate. However, micrognathia is not always associated with palatal clefting. Here, by using the *Bmp7*-null mouse model presenting with cleft palate and severe micrognathia, we provide the first causative mechanism linking the two. In wild-type embryos, the genioglossus muscle, which mediates tongue protrusion, originates from the rostral process of Meckel's cartilage and later from the mandibular symphysis, with 2 tendons positive for... περισσότερα »

MALT1 Inhibition of Oral Carcinoma Cell Invasion and ERK/MAPK Activation

The expression of mucosa-associated lymphoid tissue 1 (MALT1) that activates nuclear factor (NF)–B in lymphocyte lineages is rapidly inactivated in oral carcinoma cells at the invasive front and the patients with worst prognosis. However, its mechanism to accelerate carcinoma progression remains unknown, and this study was carried out to examine the role in invasion. HSC2 oral carcinoma cells stably expressing wild-type MALT1 (wtMALT1) reduced the invasion of basement membrane matrices and collagen gels, and the dominant-negative form (MALT1)–expressing cells aggressively invaded ...περισσότερα »

Can Stereotactic Body Radiotherapy Effectively Treat Hepatocellular Carcinoma? ONCOLOGY GRAND ROUNDS

The Oncology Grand Rounds series is designed to place original reports published in the Journal into clinical context. A case presentation is followed by a description of diagnostic and management challenges, a review of the relevant literature, and a summary of the authors’ suggested management approaches. The goal of this series is to help readers […]

Targeted Combinations for Hormone Receptor-Positive Advanced Breast Cancer: Who Benefits? Editorials

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Lapatinib in Gastric Cancer: What Is the LOGiCal Next Step? EDITORIAL

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The Stat3/5 signaling biosignature in hematopoietic stem/progenitor cells predicts response and outcome in myelodysplastic syndrome patients treated with azacitidine

Purpose:Azacitidine is the mainstay of high-risk myelodysplastic syndromes (MDS) therapy, but molecular predictors of response and the mechanisms of resistance to azacitidine remain largely unidentified. Deregulation of signaling via signal transducer and activator of transcription 3 (Stat3) and Stat5 in acute myeloid leukemia (AML) is associated with aggressive disease. Numerous genes involved in cell signaling […]

ESR1 Mutations in Breast Cancer: Proof of Concept Challenges Clinical Action

Wang and colleagues demonstrate that digital droplet PCR (ddPCR) identified ESR1 mutations in 7% of primary breast cancers. ESR1 mutations were also readily detected in metastatic tissues and circulating tumor DNA in the blood. These results suggest that ddPCR may be amendable for monitoring tumor burden, and to predict relapse. from #Medicine-SfakianakisAlexandros via o.lakala70 on […]

Antiradical properties of essential oils and extracts from coriander, cardamom, white, red, and black peppers

Alexandros G. SfakianakisστοΛοίμωξηΠριν από 1 ώρα
Abstract The antiradical properties of essential oils and extracts from coriander seeds *Coriandrum sativum* L., cardamom fruits *Elettaria cardamomum* L., fruits of white and black pepper *Piper nigrum* L., and pods of red cayenne and green chili pepper *Capsicum frutescens* L. were studied in model reactions with the stable free 2,2-diphenyl-1-picrylhydrazyl radical. The essential oils consisted of monoand sesquiterpene hydrocarbons, alcohols, oxides and esters as the main components. Spice extracts contained flavonoids, diand triterpenoids, phenolic acids, alkaloids and caroteno... περισσότερα »

Emergence of dominant initiation sites for interictal spikes in rat neocortex

Neuronal populations with unbalanced inhibition can generate interictal spikes (ISs), where each IS starts from a small initiation site and then spreads activation across a larger area. We used in vivo voltage-sensitive dye imaging to map the initiation site of ISs in rat visual cortex disinhibited by epidural application of bicuculline methiodide. Immediately after the […]

Current Injection And Receptor-Mediated Excitation Produce Similar Maximal Firing Rates In Hypoglossal Motor Neurons

The maximum firing rates of motor neurons (MNs) activated in response to synaptic drive appear to be much lower than that elicited by current injection. It could be that the decrease in input resistance associated with increased synaptic activity (but not current injection) might blunt overall changes in membrane depolarization and thereby limit spike-frequency output. […]

Dissociable saccadic suppression of pupillary and perceptual responses to light

We measured pupillary constrictions in response to full-screen flashes of variable luminance, occurring either at the onset of a saccadic eye movement or well before/after it. A large fraction of peri-saccadic flashes were undetectable to the subjects, consistent with saccadic suppression of visual sensitivity. Likewise, pupillary responses to peri-saccadic flashes were strongly suppressed. However, the […]

Impressive Results With Daratumumab Plus Lenalidomide/Dexamethasone in Multiple Myeloma

The anti-CD38 monoclonal antibody daratumu­mab (Darzalex) took center stage among multiple myeloma studies presented at the 57th American Society of Hematology Annual Meeting and Exposition. In relapsed/refra from #ORL-AlexandrosSfakianakis via ola Kala on Inoreader http://ift.tt/1NN180d via IFTTT

Expert Point of View: Sagar Lonial, MD

At an educational session at the 2015 American Society of Hematology Annual Meeting and Exposition, Sagar Lonial, MD, of Emory University, Atlanta, elaborated upon this topic. The pooled analysis of daratumumab (Darzalex) monotherapy, he said, “dem from #ORL-AlexandrosSfakianakis via ola Kala on Inoreader http://ift.tt/1mBscsK via IFTTT

A Shot to End Cancer: HPV Vaccination

As health-care providers, we have an obligation and a responsibility not only to care for our patients, but also to educate them—and the general public—about their cancer risk and ways to reduce or prevent it. We are living in the golden era of cancer pre from #ORL-AlexandrosSfakianakis via ola Kala on Inoreader http://ift.tt/1mBsaku via IFTTT

Patients With Incomplete Response to Neoadjuvant Chemotherapy Benefit From Capecitabine

Treatment with capecitabine increased disease-free and overall survival in breast cancer patients with residual disease after neoadjuvant chemotherapy, according to a study reported by researchers from Japan and Korea at the 2015 San Antonio Breast Cancer from #ORL-AlexandrosSfakianakis via ola Kala on Inoreader http://ift.tt/1NN19kL via IFTTT

Adjuvant Denosumab Improves Disease-Free Survival in Estrogen Receptor–Positive Postmenopausal Breast Cancer

There is good news about denosumab (Prolia). The primary analysis of the ABCSG-18 trial showed that adjuvant denosumab (given at low doses) reduces the risk of clinical fracture by 50% in postmenopausal women with early breast cancer who are taking an aro from #ORL-AlexandrosSfakianakis via ola Kala on Inoreader http://ift.tt/1mBscsy via IFTTT

Expert Point of View: Virginia Kaklamani, MD

Press conference moderator Virginia Kaklamani, MD, commented on these results from the ABCSG-18 trial: “It’s pretty clear that 3 years of adjuvant denosumab not only reduced fracture risk but improved disease-free survival. It’s also pretty clear t from #ORL-AlexandrosSfakianakis via ola Kala on Inoreader http://ift.tt/1YCTjzp via IFTTT

Ibrutinib Bests Standard of Care for Elderly Patients With CLL

First-line treatment with the Bruton’s tyrosine kinase inhibitor ibrutinib (Imbruvica) significantly reduced the risk of dying or disease progression compared with chlorambucil (Leukeran) in older treatment-naive patients with chronic lymphocytic leukemia from #ORL-AlexandrosSfakianakis via ola Kala on Inoreader http://ift.tt/1TiNG81 via IFTTT

Influences of cancer symptom knowledge, beliefs and barriers on cancer symptom presentation in relation to socioeconomic deprivation: a systematic review

Abstract Background People from lower socioeconomic groups have worse survival outcomes for cancer, which in part reflects later-stage disease at diagnosis. The mechanisms underlying delayed cancer symptom presentation in lower socioeconomic groups are not well understood. Methods Systematic review of studies of actual or anticipated symptom presentation across all tumour sites. Included studies measured socioeconomic […]

Announcements

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Editorial Board

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Germline PARP4 mutations in patients with primary thyroid and breast cancers

Germline mutations in the PTEN gene, which cause Cowden syndrome (CS), are known to be one of the genetic factors for primary thyroid and breast cancers, however, PTEN mutations are found in only a small subset of research participants with non-syndrome breast and thyroid cancers. In this study, we aimed to identify germline variants that […]

Associations and Intervening Mechanisms Between Family Structure and Young Childrens Obesity

This study examined the links between different family structures—capturing type and stability thereof—and preschool-aged children’s likelihood of being obese. We build on the limited number of studies that have pursued this topic by using a large, nationally representative sample of preschool-aged children from the Early Childhood Longitudinal Survey–Birth Cohort (n = 8,350) and exploring a […]

SOCS2 Balances Metabolic and Restorative Requirements During Liver Regeneration Molecular Bases of Disease

After significant injury, the liver must maintain homeostasis during the regenerative process. We hypothesized the existence of mechanisms to limit hepatocyte proliferation after injury to maintain metabolic and synthetic function. A screen for candidates revealed suppressor of cytokine signaling 2 (SOCS2), an inhibitor of growth hormone (GH) signaling, was strongly induced after partial hepatectomy. Using […]

Serum Amyloid A3 Secreted by Preosteoclasts Inhibits Parathyroid Hormone-Stimulated cAMP Signaling in Murine Osteoblasts Gene Regulation

Continuous PTH blocks its own osteogenic actions in marrow stromal cell cultures by inducing Cox2 and RANKL in the osteoblastic lineage cells, which then cause the hematopoietic lineage cells to secrete an inhibitor of PTH-stimulated osteoblast differentiation. To identify this inhibitor, we used bone marrow macrophages (BMMs) and primary osteoblasts (POBs) from WT and Cox2 […]

Different fatty acids compete with arachidonic acid for binding to the allosteric or catalytic subunits of cyclooxygenases to regulate prostanoid synthesis Enzymology

Prostaglandin endoperoxide H synthases (PGHSs) also called cyclooxygenases (COXs) convert arachidonic acid (AA) to PGH2. PGHS-1 and PGHS-2 are conformational heterodimers, each composed of an allosteric (Eallo) and a catalytic (Ecat) monomer. Previous studies suggested that the binding to Eallo of saturated or monounsaturated fatty acids (FAs) that are not COX substrates differentially regulate PGHS-1 […]

Fumarate and Succinate Regulate Expression of Hypoxia-Inducible Genes via TET Enzymes Gene Regulation

The TET enzymes are members of the 2-oxoglutarate-dependent dioxygenase family and comprise three isoenzymes in humans: TETs 1-3. These TETs convert 5-methylcytosine to 5-hydroxymethylcytosine (5-hmC) in DNA, and high 5-hmC levels are associated with active transcription. The importance of the balance in these modified cytosines is emphasized by the fact that TET2 is mutated in […]

Regulation of Histone Acetylation by Autophagy in Parkinson Disease Cell Biology

Parkinson disease (PD) is the most common age-dependent neurodegenerative movement disorder. Accumulated evidence indicates both environmental and genetic factors play important roles in PD pathogenesis, but the potential interaction between environment and genetics in PD etiology remains largely elusive. Here, we report that PD related neurotoxins induce both expression and acetylation of multiple sites of […]

Announcements

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Editorial Board

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Associations and Intervening Mechanisms Between Family Structure and Young Childrens Obesity

This study examined the links between different family structures—capturing type and stability thereof—and preschool-aged children’s likelihood of being obese. We build on the limited number of studies that have pursued this topic by using a large, nationally representative sample of preschool-aged children from the Early Childhood Longitudinal Survey–Birth Cohort (n = 8,350) and exploring a […]

Germline PARP4 mutations in patients with primary thyroid and breast cancers

Germline mutations in the PTEN gene, which cause Cowden syndrome (CS), are known to be one of the genetic factors for primary thyroid and breast cancers, however, PTEN mutations are found in only a small subset of research participants with non-syndrome breast and thyroid cancers. In this study, we aimed to identify germline variants that […]

SOCS2 Balances Metabolic and Restorative Requirements During Liver Regeneration Molecular Bases of Disease

After significant injury, the liver must maintain homeostasis during the regenerative process. We hypothesized the existence of mechanisms to limit hepatocyte proliferation after injury to maintain metabolic and synthetic function. A screen for candidates revealed suppressor of cytokine signaling 2 (SOCS2), an inhibitor of growth hormone (GH) signaling, was strongly induced after partial hepatectomy. Using […]

Serum Amyloid A3 Secreted by Preosteoclasts Inhibits Parathyroid Hormone-Stimulated cAMP Signaling in Murine Osteoblasts Gene Regulation

Continuous PTH blocks its own osteogenic actions in marrow stromal cell cultures by inducing Cox2 and RANKL in the osteoblastic lineage cells, which then cause the hematopoietic lineage cells to secrete an inhibitor of PTH-stimulated osteoblast differentiation. To identify this inhibitor, we used bone marrow macrophages (BMMs) and primary osteoblasts (POBs) from WT and Cox2 […]

Different fatty acids compete with arachidonic acid for binding to the allosteric or catalytic subunits of cyclooxygenases to regulate prostanoid synthesis Enzymology

Prostaglandin endoperoxide H synthases (PGHSs) also called cyclooxygenases (COXs) convert arachidonic acid (AA) to PGH2. PGHS-1 and PGHS-2 are conformational heterodimers, each composed of an allosteric (Eallo) and a catalytic (Ecat) monomer. Previous studies suggested that the binding to Eallo of saturated or monounsaturated fatty acids (FAs) that are not COX substrates differentially regulate PGHS-1 […]

Fumarate and Succinate Regulate Expression of Hypoxia-Inducible Genes via TET Enzymes Gene Regulation

The TET enzymes are members of the 2-oxoglutarate-dependent dioxygenase family and comprise three isoenzymes in humans: TETs 1-3. These TETs convert 5-methylcytosine to 5-hydroxymethylcytosine (5-hmC) in DNA, and high 5-hmC levels are associated with active transcription. The importance of the balance in these modified cytosines is emphasized by the fact that TET2 is mutated in […]

An Analysis of the truncated Bid- and ROS-dependent Spatial Propagation of Mitochondrial Permeabilization Waves during Apoptosis Computational Biology

Apoptosis is a form of programmed cell death that is essential for the efficient elimination of surplus, damaged and transformed cells during metazoan embryonic development and adult tissue homeostasis. Situated at the interface of apoptosis initiation and execution, mitochondrial outer membrane permeabilization (MOMP) represents one of the most fundamental processes during apoptosis signal transduction. It […]

Regulation of Histone Acetylation by Autophagy in Parkinson Disease Cell Biology

Parkinson disease (PD) is the most common age-dependent neurodegenerative movement disorder. Accumulated evidence indicates both environmental and genetic factors play important roles in PD pathogenesis, but the potential interaction between environment and genetics in PD etiology remains largely elusive. Here, we report that PD related neurotoxins induce both expression and acetylation of multiple sites of […]

Factors predicting pasireotide responsiveness in somatotroph pituitary adenomas resistant to first-generation somatostatin analogues: an immunohistochemical study

orlsfakianakisστοOtoRhinoLaryngology by Sfakianakis G.AlexandrosΠριν από 2 ώρες
Aim To gather data regarding factors predicting responsiveness to pasireotide in acromegaly. Patients and methods SSTR2a, SSTR3, SSTR5, AIP, Ki-67 and the adenoma subtype were evaluated in somatotroph adenomas from 39 patients treated post-operatively with somatostatin analogues (SSAs). A standardized SSTR scoring system was applied (scores 0–3). All patients received first-generation SSAs, and 11 resistant… Continue reading Factors predicting pasireotide responsiveness in somatotroph pituitary adenomas resistant to first-generation somatostatin analogues: an immunohistochemical study

Primary inverted papilloma of the middle ear with intracranial invasion

orlsfakianakisστοOtoRhinoLaryngology by Sfakianakis G.AlexandrosΠριν από 2 ώρες
Abstract Background Primary inverted papillomas of the middle ear are extremely rare tumors, with only few cases published in the literature. They have a characteristic epithelium surface inversion to the inside of the stroma. Inverted papillomas are benign lesions but have a high propensity of recurrence, local aggressiveness, and association with malignancy. Methods We present… Continue reading Primary inverted papilloma of the middle ear with intracranial invasion

Abdominal adipocyte populations in women with visceral obesity

orlsfakianakisστοOtoRhinoLaryngology by Sfakianakis G.AlexandrosΠριν από 2 ώρες
Background Visceral obesity is independently related to numerous cardiometabolic alterations, with adipose tissue dysfunction as a central feature. Objective To examine whether omental (OM) and subcutaneous (SC) adipocyte size populations in women relate to visceral obesity, cardiometabolic risk factors and adipocyte lipolysis independent of total adiposity. Design and methods OM and SC fat samples were… Continue reading Abdominal adipocyte populations in women with visceral obesity

Clinicopathologic factors associated with recurrence in low- and high-grade parotid cancers

orlsfakianakisστοOtoRhinoLaryngology by Sfakianakis G.AlexandrosΠριν από 2 ώρες
Abstract Background The purpose of this study was to determine clinicopathological correlates of outcome among patients with parotid gland cancer. Methods The medical records of 126 patients treated by surgery for localized parotid cancer were retrospectively reviewed to identify the clinicopathologic correlates of recurrence-free survival (RFS) according to histologic grade. Results Multivariate analysis revealed that… Continue reading Clinicopathologic factors associated with recurrence in low- and high-grade parotid cancers

Does Stress-Related Growth Really Matter for Adolescents Day-to-Day Adaptive Functioning?

orlsfakianakisστοOtoRhinoLaryngology by Sfakianakis G.AlexandrosΠριν από 2 ώρες
Adolescent stress-related growth refers to enhancement in an adolescent’s cognitive-affective or social resources as a result of experiencing stressors. We tested whether adolescents reporting high levels of stress-related growth showed superior adaptation outcomes on a day-to-day basis. Participants (n = 91; females = 46, age = 14) completed a questionnaire measure of stress-related growth and… Continue reading Does Stress-Related Growth Really Matter for Adolescents Day-to-Day Adaptive Functioning?