The usefulness of a free thinned deep inferior epigastric artery perforator flap and measurement of the vascular pedicle length: A thin flap with a long pedicle

xlomafota13 shared this article with you from Inoreader The usefulness of a free thinned deep inferior epigastric artery perforator flap and measurement of the vascular pedicle length: A thin flap with a long pedicle Via Journal of plastic, reconstructive & aesthetic surgery : JPRAS J Plast Reconstr Aesthet Surg. 2021 Dec 7:S1748-6815(21)00654-9. doi: 10.1016/j.bjps.2021.11.105. Online ahead of print. ABSTRACT BACKGROUND: The thinned deep inferior epigastric perforator (DIEP) flap branching from the main trunk to the superolateral direction may be useful because of its long vascular pedicle. DIEP flap is used as an axial-pattern adipose flap. The vascular pedicle length of the thinned DIEP flap was investigated using originally developed software. The clinical application of the thinned DIEP flap was verified in a case series. METHODS: In 40 patients with enhanced computed tomography (CT) data, the vascular pedicle length of the longest thinned DIEP flap was simulated using the software. A free thinned DIEP flap was used in 10 clinical cases of facial or breast reconstruction. RESULTS: In all simulated cases, the vascular pedicle of the DIEP branching to the superolateral direction was the longest, and the vascular pedicle could be lengthened up to 34.8% by dissecting the vessels on the fascia as a vascular pedicle. In all the clinical cases, the reconstruction of a complex form defect or reconstruction requiring a long vascular pedicle could be achieved in one stage without any perioperative complications. The intraclass correlation coefficient between simulated pedicle length and dissected pedicle length was 0.99. CONCLUSION: Thinned DIEP flaps with long vascular pedicles could be elevated safely. Multiple adipose or muscle flaps could be combined without complications. The length of the winding vascular pedicle could be measured using imaging data using the software first developed in the present study. This software would be useful in the planning of a thinned DIEP flap and other free flaps. PMID:34973933 | DOI:10.1016/j.bjps.2021.11.105 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Breast reconstruction using the profunda artery perforator (PAP) flap: Technical refinements and evolution, outcomes, and patient satisfaction based on 116 consecutive flaps

xlomafota13 shared this article with you from Inoreader Breast reconstruction using the profunda artery perforator (PAP) flap: Technical refinements and evolution, outcomes, and patient satisfaction based on 116 consecutive flaps Via Journal of plastic, reconstructive & aesthetic surgery : JPRAS J Plast Reconstr Aesthet Surg. 2021 Dec 1:S1748-6815(21)00635-5. doi: 10.1016/j.bjps.2021.11.085. Online ahead of print. ABSTRACT INTRODUCTION: When a deep inferior epigastric artery flap is not suitable, the profunda artery perforator (PAP) flap can be a good alternative for autologous breast reconstruction. Popularity of the PAP flap is expanding, but it is still only slowly being adopted worldwide. We report our experience with 116 consecutive PAP flaps showing refinements and evolution of the technique towards improvement in outcomes and patients' satisfaction. METHODS: We prospectively collected data from consecutive PAP flap breast reconstructions performed from 2016 to 2019. Patients' demographics, pre-, intra-, postoperative data, and revision procedures were analyzed. The BREAST-Q and a specific questionnaire investigating outcomes at the donor site were completed preoperatively and 12 months postoperatively. RESUL TS: One-hundred and sixteen PAP flaps were performed in 86 patients, 64 unilateral and 22 bilateral breast reconstructions. Mean body mass index was 24.72 kg/m2 (range 18.9-29.2) and mean flap weight was 251.30 g (range 152-455 g). Complications included donor site hematoma (1.7%), seroma (2.6%), fat necrosis (1.7%), and wound dehiscence (2.6%). No arterial/venous thrombosis nor flap losses were recorded. Patients reported high satisfaction in all BREAST-Q domains, with mean postoperative scores being higher than preoperative ones, suggesting a positive effect in quality of life and satisfaction. Scores were significant in the satisfaction with breast domain (p = 0.0016). CONCLUSIONS: Breast reconstruction with PAP flap yields a high success, low complications, and excellent cosmetic outcomes in the breast and donor sites. It improves patients' satisfaction and quality of life; hence, it can be considered an excellent option for autologous breast reconstruction. PMID:34975000 | DOI:10.1016/j.bjps.2021.11.085 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Role of hsa_circ_0066966 in proliferation and migration of hepatitis B virus-related liver cancer cells

xlomafota13 shared this article with you from Inoreader Role of hsa_circ_0066966 in proliferation and migration of hepatitis B virus-related liver cancer cells Via Experimental and therapeutic medicine Exp Ther Med. 2022 Jan;23(1):87. doi: 10.3892/etm.2021.11010. Epub 2021 Nov 25. ABSTRACT A large proportion of liver cancer cases is caused by hepatitis B virus (HBV) infection. In recent years, an increasing number of reports have indicated that circular RNAs (circRNAs) exert regulatory effects in cancer development, whereas the role of circRNAs in HBV-positive liver cancer requires further investigation. In the present study, abnormally expressed circRNAs were identified in HBV-positive liver cancer cells through microarray analysis. A total of 1,493 differentially expressed circRNAs [absolute fold-change (FC) ≥2] in HBV-positive liver cancer cells were detected, of which 171 were upregulated and 1,322 were downregulated. Subsequently, Gene Ontology enrichment analysis indicated that the genes of dysregulated circRNAs were mainly involved in regulating Sertoli cell differentiation and development, as well as telomeric DNA binding. Kyoto Encyclopedia of Genes and Genomes pathway analysis revealed that most of these genes were enriched in cancer-related signaling pathways, including the MAPK and Hippo signaling pathways. Next, the expression levels of the top-10 dysregulated circRNAs were verified in HBV-positive liver cancer cells through reverse transcription-quantitative PCR. Among them, hsa_circ_0066966 had the highest absolute Log2FC value and was abnormally increased in HBV-positive liver cancer cells. Functional experiments further verified that knockdown of hsa_circ_0066966 had a significant inhibitory effect on the proliferation and migration of HBV-positive liver cancer cells. By contrast, overexpression of hsa_circ_0066966 in HBV-negative liver cancer cells resulted in the opposite effect. In conclusion, in the present study, comprehensive circRNA profiling in HBV-positive liver cancer cells indicated that hsa_circ_0066966 may regulate the progression of HBV-positive liver cancer. PM ID:34976133 | PMC:PMC8674973 | DOI:10.3892/etm.2021.11010 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

lncRNA HOTAIR mediates OGD/R-induced cell injury and angiogenesis in a EZH2-dependent manner

xlomafota13 shared this article with you from Inoreader lncRNA HOTAIR mediates OGD/R-induced cell injury and angiogenesis in a EZH2-dependent manner Via Experimental and therapeutic medicine Exp Ther Med. 2022 Jan;23(1):99. doi: 10.3892/etm.2021.11022. Epub 2021 Dec 1. ABSTRACT Long non-coding RNAs (lncRNA) serve an important role in neonatal hypoxic-ischemic encephalopathy (HIE) have been reported to regulate the activity of HIE-associated proteins. The present study aimed to elucidate the role of Hox transcript antisense intergenic RNA (HOTAIR) in oxygen-glucose deprivation/reperfusion (OGD/R)-induced injury in human brain microvascular endothelial cells (hBMVECs). The levels of HOTAIR were evaluated in the serum of neonatal patients with HIE, and the effects of HOTAIR were evaluated using in vitro assays, such as reverse transcription-quantitative PCR to detect lncRNA and mRNA levels and western blot analysis to determine protein levels. Moreover, RNA immunoprecipitation assays were used to evaluate the association between HOTAIR and enhancer of zeste homolog 2 (EZH2), Cell Counting Kit-8 was used to detect cell viability, an endothelial monolayer cell permeability assay was used to analyze cell viability, TUNEL staining was used to detect the levels of apoptosis, a Transwell assay was used to evaluate cell invasion and a tube formation assay was used to analyze tube formation ability. In addition, the effects of HOTAIR and EZH2 on cell apoptosis and the invasive and tube formation abilities of hBMVECs were investigated using TUNEL, Transwell and tube formation assays, respectively. The results showed that the expression levels of HOTAIR were markedly increased both in neonatal HIE patients and in the OGD/R injury in vitro model. HOTAIR knockdown reduced hBMVEC viability, enhanced cell permeability and apoptosis, in addition to decreasing the expression levels of tight junction-related proteins, such as zonula occludens-1, occluden, Claudin5 and vascular endothelial-cadherin. However, EZH2 overexpression reversed the effects of HOTAIR silencing on hBMVECs. Additionally, HOTAIR knockd own enhanced the migratory and tube formation abilities of OGD/R-induced hBMVECs, which were also reversed by EZH2 overexpression. Overall, the present study revealed an association between the HOTAIR/EZH2 axis and brain microvascular endothelial cell injury and angiogenesis, which provides a novel insight into the molecular mechanism underlying stroke or the development of new pharmacotherapies. PMID:34976141 | PMC:PMC8674968 | DOI:10.3892/etm.2021.11022 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

miR-130b suppresses the invasion and migration of prostate cancer via inhibiting DLL1 and regulating the PI3K/Akt pathways

xlomafota13 shared this article with you from Inoreader miR-130b suppresses the invasion and migration of prostate cancer via inhibiting DLL1 and regulating the PI3K/Akt pathways Via Experimental and therapeutic medicine Exp Ther Med. 2022 Jan;23(1):98. doi: 10.3892/etm.2021.11021. Epub 2021 Dec 1. ABSTRACT Prostate cancer occurs in the prostatic epithelium and poses a threat to the health of middle-aged and older males. The objective of the present study was to explore the roles of microRNA (miRNA/miR)-130b in prostate cancer and potential molecular mechanisms in order to control the migration and invasion of prostate cancer. For this purpose, reverse transcription-PCR was performed to evaluate the mRNA levels of DLL1, phosphoinositide-3 kinase (PI3K), protein kinase B (Akt) and matrix metalloproteinase (MMP)9, and western blot analysis was carried out to detect the protein expression levels of DLL1, phosphorylated (p)-PI3K, p-Akt and MMP9. A Transwell assay was conducted to examine the invasion rate of prostate cancer cells. Furthermore, a scratch wound assay was performed to examine the migration rate of prostate cancer cells. A luciferase assay was performed to examine the interaction between miRNA and its target mRNA. The results revealed that miR-130b had abnormal (low) expression in tumor tissues compared with that in the adjacent normal tissue. An miR-130b mimic suppressed the expression of DLL1. The expression of p-PI3K, p-Akt and MMP9 in prostate cancer cells transfected with the miR-130b mimic was decreased in comparison to the negative control and control groups. Furthermore, migration and invasion were significantly suppressed in the miR-130b mimic group. In conclusion, a novel pathway interlinking miR-130b and MMP9, p-Akt and p-PI3K, which regulates the migration and invasion of prostate cancer cells, was identified. These findings provide an intriguing biomarker and treatment strategy for patients with prostate cancer. PMID:34976140 | PMC:PMC8674980 | DOI:10.3892/etm.2021.11021 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

High Mobility Group Box-1 Protein and Interleukin 33 Expression in Allergic Rhinitis

xlomafota13 shared this article with you from Inoreader High Mobility Group Box-1 Protein and Interleukin 33 Expression in Allergic Rhinitis Via O.R.L. Journal for oto-rhino-laryngology and its borderlands Background: Allergic rhinitis (AR) is characterized by an inflammatory reaction. High mobility group box 1 (HMGB1) protein and interleukin (IL)-33 are damage-associated molecular pattern molecules and have many characteristics similar to pro-inflammatory cytokines. However, the role of IL-33 and HMGB1 in AR remains unclear. The aim of this study is to explore the role of HMGB1 and IL-33 in AR. Methods: Twenty patients with AR (AR group) and 10 normal controls (normal group) were enrolled in this study. HMGB1 and IL-33 expression were analyzed by immunohistochemistry in epithelial cells of the inferior turbinate mucosa samples. Then, the human nasal mucosa epithelial cells (HNECs) were cultured in vitro, and the house dust mite allergen (Derp1) was used to stimulate the cells. Quantitative real-time PCR and ELISA assay were performed to detect HMGB1 and IL-33 expression in HNECs. Results: The expression of HMGB1 and IL-33 in the nasal mu cosa was higher in the AR group than in the normal group, with a statistically significant difference (p #x3c; 0.05). In HNECs of AR, the expression of both HMGB1 and IL-33 in stimulated groups was higher than that in non-stimulated groups. The differences were statistically significant (p #x3c; 0.05). In addition, they increased gradually with the prolonging time and the concentration of the added Derp1. Conclusions: The expression of HMGB1 and IL-33 were both increased in AR. HMGB1 and IL-33 may have a close relationship in AR. ORL View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Optimal Serum Thyrotropin Level for Patients with Papillary Thyroid Carcinoma After Lobectomy

xlomafota13 shared this article with you from Inoreader Optimal Serum Thyrotropin Level for Patients with Papillary Thyroid Carcinoma After Lobectomy Via liebertpub1 Thyroid, Ahead of Print. View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Novel Fibroblast Activation Protein Inhibitor-Based Targeted Theranostics for Radioiodine-Refractory Differentiated Thyroid Cancer Patients: A Pilot Study

xlomafota13 shared this article with you from Inoreader Novel Fibroblast Activation Protein Inhibitor-Based Targeted Theranostics for Radioiodine-Refractory Differentiated Thyroid Cancer Patients: A Pilot Study Via liebertpub1 Thyroid, Ahead of Print. View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Screening for Eustachian Tube Dysfunction in Clinical Practice Using the Eustachian Tube Dysfunction Questionnaire‐7

xlomafota13 shared this article with you from Inoreader Message: https://entsurrey.com/Download/Questionaires/Eustachian_Tube_Dysfunction_(ETDQ_7).pdf Screening for Eustachian Tube Dysfunction in Clinical Practice Using the Eustachian Tube Dysfunction Questionnaire‐7 Via The Laryngoscope Objectives/Hypothesis To evaluate the ability of the Eustachian Tube Dysfunction Questionnaire-7 (ETDQ-7) to discriminate between patients with Eustachian tube dysfunction (ETD) and Non-ETD diagnoses, and identify symptom information to improve ability to discriminate these groups. Study Design Cohort study. Methods Pilot retrospective study with consecutive adult patients presenting to otology clinics and one general otolaryngology clinic in an academic health system. Patients were administered ETDQ-7 with eight additional symptom items. Electronic health records were reviewed for demographic and diagnostic information. Patients were grouped into diagnosis categories: 1) True ETD, 2) experiencing ear fullness (EF) not due to ETD, and 3) Control patients without ETD-related disorders or EF. ETDQ-7 and symptom item scores were compared by the diagnosis group. Receiver-operative characteristics curves and area under the curve (AUC) were generated for each ETD diagnosis group based on ETDQ-7 and symptom scores. Results Of the 108 patients included in this study 74 (68.5%) were diagnosed with ETD. Patients with ETD had higher (indicating worse symptom burden) overall ETDQ-7 scores than Control group (Median [Q1, Q3] 3.0, [1.7, 4.1]; versus 1.5 [1.0, 3.4] P = .008). There was no statistically significant difference between overall ETDQ-7 scores for ETD and Non-ETD EF patients (P = .389). The AUC for the ETDQ-7 in discriminating ETD from other conditions that cause EF was 0.569; the addition of 8 symptom questions to the ETDQ-7 improved AUC to 0.801. Conclusion Additional patient-reported symptom information may improve the ability to discriminate ETD from other similarly presenting diagnoses when using ETDQ-7. Level of Evidence 3 Laryngoscope, 2022 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Screening for Eustachian Tube Dysfunction in Clinical Practice Using the Eustachian Tube Dysfunction Questionnaire‐7

xlomafota13 shared this article with you from Inoreader Screening for Eustachian Tube Dysfunction in Clinical Practice Using the Eustachian Tube Dysfunction Questionnaire‐7 Via The Laryngoscope Objectives/Hypothesis To evaluate the ability of the Eustachian Tube Dysfunction Questionnaire-7 (ETDQ-7) to discriminate between patients with Eustachian tube dysfunction (ETD) and Non-ETD diagnoses, and identify symptom information to improve ability to discriminate these groups. Study Design Cohort study. Methods Pilot retrospective study with consecutive adult patients presenting to otology clinics and one general otolaryngology clinic in an academic health system. Patients were administered ETDQ-7 with eight additional symptom items. Electronic health records were reviewed for demographic and diagnostic information. Patients were grouped into diagnosis categories: 1) True ETD, 2) experiencing ear fullness (EF) not due to ETD, and 3) Control patients without ETD-related disorders or EF. ETDQ-7 and symptom item scores were compared by the diagnosis group. Receiver-operative characteristics curves and area under the curve (AUC) were generated for each ETD diagnosis group based on ETDQ-7 and symptom scores. Results Of the 108 patients included in this study 74 (68.5%) were diagnosed with ETD. Patients with ETD had higher (indicating worse symptom burden) overall ETDQ-7 scores than Control group (Median [Q1, Q3] 3.0, [1.7, 4.1]; versus 1.5 [1.0, 3.4] P = .008). There was no statistically significant difference between overall ETDQ-7 scores for ETD and Non-ETD EF patients (P = .389). The AUC for the ETDQ-7 in discriminating ETD from other conditions that cause EF was 0.569; the addition of 8 symptom questions to the ETDQ-7 improved AUC to 0.801. Conclusion Additional patient-reported symptom information may improve the ability to discriminate ETD from other similarly presenting diagnoses when using ETDQ-7. Level of Evidence 3 Laryngoscope, 2022 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Advantages of Pulse Rate Compared to Modulation Frequency for Temporal Pitch Perception in Cochlear Implant Users

xlomafota13 shared this article with you from Inoreader Advantages of Pulse Rate Compared to Modulation Frequency for Temporal Pitch Perception in Cochlear Implant Users Via Journal of the Association for Research in Otolaryngology Abstract Most cochlear implants encode the fundamental frequency of periodic sounds by amplitude modulation of constant-rate pulsatile stimulation. Pitch perception provided by such stimulation strategies is markedly poor. Two experiments are reported here that consider potential advantages of pulse rate compared to modulation frequency for providing stimulation timing cues for pitch. The first experiment examines beat frequency distortion that occurs when modulating constant-rate pulsatile stimulation. This distortion has been reported on previously, but the results presented here indicate that distortion occurs for higher stimulation rates than previously reported. The second experiment examines pitch resolution as provided by pulse rate compared to modulation frequency. The results indicate that pitch discrimination is better with pulse rate than with modulation frequency. The advantage was large for rates near what has been suggested as the upper limit of temporal pit ch perception conveyed by cochlear implants. The results are relevant to sound processing design for cochlear implants particularly for algorithms that encode fundamental frequency into deep envelope modulations or into precisely timed pulsatile stimulation. View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.