Characterizing Polarity Sensitivity in Cochlear Implant Recipients: Demographic Effects and Potential Implications for Estimating Neural Health

xlomafota13 shared this article with you from Inoreader Characterizing Polarity Sensitivity in Cochlear Implant Recipients: Demographic Effects and Potential Implications for Estimating Neural Health Via Journal of the Association for Research in Otolaryngology Abstract Stimulus polarity can affect both physiological and perceptual measures in cochlear-implant recipients. Large differences between polarities for various outcome measures (e.g., eCAP threshold, amplitude, or slope) theoretically reflect poorer neural health, whereas smaller differences reflect better neural health. Therefore, we expect large polarity effects to be correlated with other measures shown to contribute to poor neural health, such as advanced age or prolonged deafness. Our earlier studies using the electrically evoked compound action potential (eCAP) demonstrated differences in polarity effects between users of Cochlear and Advanced Bionics devices when device-specific clinical pulse designs were used. Since the stimuli differed slightly between devices, the first goal of this study was to determine whether small, clinically relevant differences in pulse phase duration (PD) have a significant impact on eCAP polarity effects to potentially explain the de vice differences observed previously. Polarity effects were quantified as the difference in eCAP thresholds, mean normalized amplitudes, and slope of the amplitude growth function obtained for anodic-first versus cathodic-first biphasic pulses. The results showed that small variations in PD did not explain the observed differences in eCAP polarity effects between devices. Therefore, eCAP polarity sensitivity measures are relatively robust to small differences in pulse parameters. However, it remains unclear what underlies the observed manufacturer differences, which may limit the utility of eCAP polarity sensitivity measures. The second goal was to characterize polarity sensitivity in a large group of CI recipients (65 ears) to relate polarity sensitivity to age and duration of deafness as a proxy for neural health. The same pulse parameters were used for both device groups. The only significant predictors of eCAP polarity effects were age for threshold and amplitude polarity effect s for Cochlear recipients and age and duration of deafness for slope for AB recipients. However, three of these four correlations were in the opposite direction of what was expected. These results suggest that eCAP polarity sensitivity measures likely reflect different mechanisms than the effects that age and duration of deafness induce on the peripheral auditory system. View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

A Systematic Review on the Association Between Clinical Symptoms and CBCT Findings in Symptomatic TMJ Degenerative Joint Disease

xlomafota13 shared this article with you from Inoreader A Systematic Review on the Association Between Clinical Symptoms and CBCT Findings in Symptomatic TMJ Degenerative Joint Disease Via pubmed: "j oral facial pain ... J Oral Facial Pain Headache. 2021 Nov-Dec;35(4):332-345. doi: 10.11607/ofph.2953. ABSTRACT AIMS: To evaluate the association between clinical signs/symptoms and bone changes on CBCT images in patients with degenerative joint disease (DJD) of the temporomandibular joint (TMJ). METHODS: An electronic literature search of the MEDLINE, PubMed, EMBASE, Scopus, and Web of Science databases, as well as Google Scholar for gray literature, was conducted to identify relevant art icles on February 26, 2021. Risk of bias was evaluated using the Joanna Briggs Institute critical appraisal tools. The GRADEpro (Recommendation, Assessment, Development, and Evaluation) system instrument was applied to assess the level of evidence across studies. RESULTS: Nine papers assessing clinical signs/symptoms and CBCT findings were included. TMJ pain (arthralgia) and TMJ noises carried the strongest associations with various CBCT findings, each of which were supported by four studies with significant associations. Only one study found significant associations between masticatory myalgia (muscle pain) and CBCT findings. Range of motion carried no significant associations with CBCT findings in the included studies. Based on the GRADEpro system, the certainty of evidence is low for said associations. CONCLUSION: The results suggest that TMD patients with TMJ arthralgia and joint noises may benefit from CBCT imaging. There would be less benefit in TMD patients exhibi ting primarily myalgia or limited range of motion, and therefore these patients should not be prescribed routine CBCT radiographs unless indicated by other clinical findings. The heterogeneity of reporting in the included studies suggests that embracing universal clinical (DC/TMD) and radiographic diagnostic criteria for TMJ-DJD would benefit both research and clinical outcomes. PMID:34990502 | DOI:10.11607/ofph.2953 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Temporomandibular Disorders Core Curriculum for Predoctoral Dental Education: Recommendations from the American Academy of Orofacial Pain

xlomafota13 shared this article with you from Inoreader Temporomandibular Disorders Core Curriculum for Predoctoral Dental Education: Recommendations from the American Academy of Orofacial Pain Via pubmed: "j oral facial pain ... J Oral Facial Pain Headache. 2021 Fall;35(4):271-277. doi: 10.11607/ofph.3073. NO ABSTRACT PMID:34990495 | DOI:10.11607/ ofph.3073 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Prevalence and associated factors of aspiration and severe dysphagia in asymptomatic patients in the late period after open partial laryngectomy: a videofluoroscopic evaluation

xlomafota13 shared this article with you from Inoreader Prevalence and associated factors of aspiration and severe dysphagia in asymptomatic patients in the late period after open partial laryngectomy: a videofluoroscopic evaluation Via http://link.springer.com/journal/405,European archives of oto-rhino-laryngology,The European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino Eur Arch Otorhinolaryngol. 2022 Jan 4. doi: 10.1007/s00405-021-07231-4. Online ahead of print. ABSTRACT PURPOSE: This study aimed to evaluate late and asymptomatic patients after open partial horizontal laryngectomy (OPHL), investigating the clinical-surgical and socio-demographic factors associated with aspiration and severe dysphagia. METHODS: One-thousand videofluoroscopic swallowing studies were performed in 100 asymptomatic patients in the late period after OPHL(median 6.5 years). Aspiration and severe dysphagia were, respectively, assessed by the Penetration-Aspiration scale (PAS) and by the Dynamic Imaging Grade of Swallowing Toxicity (DIGEST) classification. Associated factors were investigated by multivariate logistic regressions. RESULTS: 34% (95% CI 24.3-47.6%) of patients presented aspiration and 23% (95% CI 15.3-34.6%) had severe or life-threatening dysphagia (DIGEST grades 3-4). On logistic regression, the pre sence of aspiration was associated with lower preoperative serum albumin (odds ratio [OR]: 0.22; 95% CI 0.07-0.64; p = 0.005, for each 1 g/dL increment); a greater weight loss in early postoperative period (OR: 1.19, 95% CI 1.05-1.35; p = 0.008, for each 1 kg loss); older age at surgery (OR: 1.08; 95% CI 1.01-1.17, for each 1-year older); and with the presence of diabetes (OR: 5.16; 95% CI 1.09-27.47; p = 0.039). CONCLUSION: Deglutition abnormalities are frequent in asymptomatic patients later after OPHL. Older patients, with lower preoperative serum albumin levels, with greater postoperative weight loss, and with diabetes compose the clinical profile at risk for having worse swallowing function in the late period after OPHL. PMID:34982204 | DOI:10.1007/s00405-021-07231-4 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.

A clinical analysis of oropharyngeal squamous cell carcinoma: a single-institution's experience

xlomafota13 shared this article with you from Inoreader A clinical analysis of oropharyngeal squamous cell carcinoma: a single-institution's experience Via http://link.springer.com/journal/405,European archives of oto-rhino-laryngology,The European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino Eur Arch Otorhinolaryngol. 2022 Jan 3. doi: 10.1007/s00405-021-07236-z. Online ahead of print. ABSTRACT PURPOSE: We herein report the treatment outcome of oropharyngeal squamous cell carcinoma (OPSCC) at Kyushu University Hospital, the total number of OPSCC cases, and changes in the proportion of human papilloma virus (HPV)-related carcinomas over time. METHOD: We performed a retrospective analysis of 237 cases treated for OPSCC at Kyushu University Hospital between 2013 and 2019. We performed HPV-mRNA in situ hybridization and p16 immunohistochemistry. RESULT: This study included 197 males (82.1%) and 40 females (17.9%). The disease-specific, progression-free and overall survival (OS) were 69%, 62% and 61%, respectively, over the decade-long study period. p16-Immunohistochemistory and highrisk HPV mRNA in situ hybridization were positive in 114 (48.1%) and 105 (44.3%) cases, respectively. The number of HPV-related OPSCC ca ses increased according to an annual analysis. HPV+ cases had a significantly better prognosis than HPV- cases. In addition, p16+/HPV- cases had a significantly worse prognosis than p16+/HPV+ cases (OS: p = 0.0484). HPV+ OPSCC cases were associated with a younger age (< 60 years old) (p = 0.0429), non-smoker (p = 0.0001), lateral tumor site (< 0.00001), lymphoid metastasis (< 0.0001) and low clinical stage (< 0.0001). CONCLUSION: The frequency of HPV-related OPSCC cases is increasing in Japan as well as worldwide, and such cases are characterized by no smoking habit, a young age, and a good prognosis. Even in p16+ OPSCC, HPV- cases had a poor prognosis, suggesting the importance of accurate HPV determination. To determine the intensity of treatment for HPV-related and non-related OPSCC, it is necessary to accumulate cases for the accurate HPV determination and compari son of treatment effects. PMID:34978590 | DOI:10.1007/s00405-021-07236-z View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Biomarkers in melanoma and non‐melanoma skin cancer prevention and risk stratification

xlomafota13 shared this article with you from Inoreader Biomarkers in melanoma and non‐melanoma skin cancer prevention and risk stratification Via Experimental Dermatology Abstract The rates of melanoma and non-melanoma skin cancer (NMSC) have been increasing over the last twenty years in the United States, and this has been attributed to increased ultraviolet radiation exposure (UVR). Given these rising rates, preventative measures have become increasingly important to reduce the incidence and promote early detection of these cancers. Skin cancer prevention remains a challenging task to accomplish mainly due to the lack of reliable and sensitive methods to provide objective risk information that can educate and motivate individuals to avoid sunburn. Currently, minimal erythema dose (MED) is used as a marker of UVR. However, it is not an ideal marker because significant cancer-related molecular damage can occur after UVR exposure that cannot be detected by MED. Thus, over the recent years there has been significant interest in development of biomarkers indicative of exposure to UVR to improve early detection of cutaneous malignancies. Here, we will discuss e merging biomarkers for melanoma and NMSC that can help with risk stratification and targeted prevention and treatment. View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.