An involvement of COX and 5‐LOX pathways in the penicillin‐ and pentylenetetrazole (PTZ)‐induced epilepsy models

alexandrossfakianakis shared this article with you from Inoreader An involvement of COX and 5‐LOX pathways in the penicillin‐ and pentylenetetrazole (PTZ)‐induced epilepsy models via Fundamental & Clinical Pharmacology Abstract Purpose This study aimed to examine the relationship between epilepsy and COX/5-LOX inflammation pathways in the penicillin and pentylenetetrazole (PTZ)-induced epilepsy models. Methods For this purpose, forty-two albino male Wistar rats were used in this study. In the penicillin and PTZ-induced epilepsy models, epileptiform activity was induced by injection of penicillin (500 IU, i.c) and PTZ (35 mg/kg, i.p, three times a week), respectively. Licofelone (20 mg/kg, i.p), a dual inhibitor of COX/5-LOX, and esculetin (20 mg/kg, i.p), a 5-LOX inhibitor, were given. In the penicillin-induced epilepsy model, ECoG activity was recorded for 180 min. In the PTZ-induced epilepsy model, both ECoG activity was recorded and behavioral parameters were performed. Results In the penicillin groups, both licofelone and esculetin decreased the mean spike frequency and amplitude during the experiments. In the PTZ groups, licofelone (20 mg/kg, i.p) was more effective than esculetin (20 mg/kg, i.p). Licofelone showed its protective effects both in ECoG activity and in behavioral parameters. Esculetin was less effective when compared to licofelone. Conclusion The electrophysiological and behavioral data from the present study indicated that inflammation pathways might have a crucial role in controlling epileptiform activity in rats. Licofelone might be a valuable candidate in advanced studies. View on Web

Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Epstein-Barr Virus–Positive Plasma Cell Neoplasm of Nasal Cavity in an Immunocompetent Adult

alexandrossfakianakis shared this article with you from Inoreader Epstein-Barr Virus–Positive Plasma Cell Neoplasm of Nasal Cavity in an Immunocompetent Adult via JAMA Otolaryngology–Head & Neck Surgery Online First This case report describes patient in their 40s with a medical history of sleep apnea and diabetes and no history of immunosuppression who presented with left-sided nasal obstruction for 1 year and was found to have an Epstein-Barr virus–positive plasmacytoma. View on Web

Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Survival and complications of implant‐supported cantilever fixed dental prostheses with zirconia and metal frameworks: A retrospective cohort study

alexandrossfakianakis shared this article with you from Inoreader Survival and complications of implant‐supported cantilever fixed dental prostheses with zirconia and metal frameworks: A retrospective cohort study via Clinical Implant Dentistry and Related Research Abstract Background Current evidence about long-term survival of all-ceramic implant-supported cantilever fixed dental prostheses (cFDP) is limited. Purpose To evaluate the survival and complication rates of all-ceramic and metal–ceramic implant-supported cFDPs located in anterior and posterior sites, under consideration of risk factors. Methods of study The retrospective analysis compared an experimental group (75 implant-supported cFDPs among 48 patients [mean age 60.47 ± 9.25 years; 21 men]; mean observation period 3.56 years) with a control group (300 implant-supported non-cantilever FDPs [ncFDP] among 241 patients [mean age 62.85 ± 10.72 years; 109 men]; mean observation period 7.25 years). Kaplan–Meier estimates were used to describe the long-term survival and success of both groups. Log-rank tests were used for group comparisons. Mixed-effects Cox proportional hazards regression models were used to examine the effects of restoration- and site-specific risk factors. A random intercept was included in the models to take multiple FDPs per patient into account. Results Five-year cumulative survival until loss of restoration was 97.1% (95% confidence interval [CI] 0.93–1.00) for cFDPs and 97.0% (95% CI 0.95–0.99) for ncFDPs. Ten-year survival was 93.7% (95% CI 0.86–1.00) for cFDPs and 92.8% (95% CI 0.87–0.98) for ncFDPs, no difference between the survival curves of these groups was observed. Success differed between cFDPs and ncFDPs (p Log  = 0.002), zirconia and metal frameworks (p Log  < 0.001), and provisional and definitive cements (p Log  = 0.025). The effects of the variables "framework material" and "attachment method" were confirmed in a mixed-effects Cox regression model. Loss of retention was the predominant complication for both cFDPs and ncFDPs and usually affected provisionally cemented FDPs. Conclusions cFDPs do not differ from ncFDPs with regard to long-term failure, whereas additional complications were higher for cFDPs. Fewer complications were observed for zirconia frameworks without occlusal veneers and definitive cemented FDPs. Clinical trial registration: the trial has no registration number because it commenced before January 31, 2017. View on Web

Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Transoral Laser Microsurgery in Recurrent Laryngeal Cancer: A Systematic Review and Meta‐analysis

alexandrossfakianakis shared this article with you from Inoreader Transoral Laser Microsurgery in Recurrent Laryngeal Cancer: A Systematic Review and Meta‐analysis via The Laryngoscope The aim of this systematic review and meta-analysis was to determine the oncological outcomes of salvage transoral laser microsurgery (TLM) in the treatment of patients suffering from recurrent laryngeal cancer. We demonstrated that TLM is a valuable treatment option for the management of locally recurrent laryngeal carcinoma if performed by experienced surgeons and following rigorous patients' selection criteria. Further studies should be conducted to define stage-based clinical guidelines. Objective To determine the oncological outcomes of salvage transoral laser microsurgery (TLM) in the treatment of patients suffering from recurrent laryngeal cancer. Methods PubMed/MEDLINE, Cochrane Library, and Scopus databases were searched. English language, original studies investigating oncological outcomes of TLM in adult patients with recurrent laryngeal cancer were included. Data were pooled using a distribution-free approach for estimating summary local control (LC), disease-specific survival (DSS), and overall survival (OS) curves with random effects. Results Two hundred and thirty-five patients underwent salvage TLM after primary (chemo)radiotherapy. The mean follow-up time was 60.8 months (95% CI: 32.7–88.9). Estimated pooled LC rates (95% CI) at 1, 3 and 5 years were 74.2% (61.7–89.4), 53.9% (38.5–75.3), and 39.1% (25.2–60.8). Estimated pooled DSS rates (95% CI) at 1, 3 and 5 years were 88.4% (82.0–95.3), 67.8% (50.9–90.3), and 58.9% (42.7–81.1). Two hundred and seventy-one patients underwent TLM after primary laser treatment. The mean follow-up time was 70.9 months (95% CI: 36.9–104.9). Estimated pooled LC rates (95% CI) at 1, 3 and 5 years were 72.2% (64.7–80.6), 53.2% (42.2–66.9), and 40.4% (29.6–55.2). Estimated pooled DSS rates (95% CI) at 1, 3 and 5 years were 92.1% (85.5–99.1), 77.0% (64.4–92.0), and 67.1% (51.6–87.3). Conclusions TLM is a valuable treatment option for the management of locally recurrent laryngeal carcinoma if performed by experienced surgeons and following rigorous patients' selection criteria. Further studies should be conducted to define stage-based clinical guidelines. Level of Evidence NA Laryngoscope, 2022 View on Web

Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

BK polyomavirus in Iranian Patients with Papillary Thyroid Cancer: Is It a Major Future Challenge?

alexandrossfakianakis shared this article with you from Inoreader BK polyomavirus in Iranian Patients with Papillary Thyroid Cancer: Is It a Major Future Challenge? via Journal of Medical Virology Abstract BK polyomavirus (BKPyV) is a well-known cause of nephropathy in renal transplant recipients. It has recently received much attention from researchers as a major predisposing factor for various cancers. This study aimed to investigate how BKPyV affected the advancement of papillary thyroid carcinoma (PTC). A total of 1057 samples were tested for BKPyV DNA and RNA, comprising 645 paraffin-embedded PTC biopsy samples (PEBS), 412 fresh biopsy samples (FBS), and 1057 adjacent non-cancerous samples. The BKPyV DNA was found in 511 (48.3%) of the specimens, including 347 (84.2%) FBS and 164 (25.4%) PEBS. The mean BKPyV copy number was significantly lower in patients with PEBS (0.5 × 10-4 ± 0.1 × 10-4 copies/cell) than in FBS (1.3 × 10-1 ± 0.2 × 10-1 copies/cell) and non-PTC normal samples (0.3 × 10-5 ± 0.04 × 10-5 copies/cell). The PEBS had lower LT-Ag RNA expression than FBS, and no V P1 gene transcript expression was detected. In conclusion, although our findings indicated the presence of BKPyV in some Iranian PTC patients, more research is needed to corroborate these findings. This article is protected by copyright. All rights reserved. View on Web

Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.