Effect of chronic alcohol consumption on myocardial apoptosis in the rat model of isoproterenol-induced myocardial injury and investigation on the cardioprotective role of calpain inhibitor 1.

We investigated the presence of myocardial apoptosis on isoproterenol (ISO)-induced myocardial injury (MI) after long-term high dose alcohol consumption and examined the antiapoptotic role of calpain inhibitor 1. Male Wistar Albino rats (n = 108) were divided into six groups: Control, alcohol (ethanol was given during 30 days for chronic alcohol consumption), MI (150 mg/kg ISO injection at last two days of alcohol consumption), alcohol + MI, alcohol + MI + calpain inhibitor 1 (10 mg/kg inhibitor was injected at 15 min before ISO injections) and Dimethyl Sulfoxide (DMSO) groups. Biochemical, histological, and morphometric methods determined apoptosis levels in the heart tissue of rats. Cytochrome c, caspase 3, and calpain levels were significantly high in alcohol, MI, and alcohol + MI groups. In contrast, mitochondrial cardiolipin content was found to be low in alcohol, MI, and alcohol + MI groups. These parameters were close to the control group in the therapy group. Histological and morphometric data have supported biochemical results. As a result of our biochemical data, myocardial apoptosis was seen in the alcohol, MI, and especially alcohol after MI groups. Calpain inhibitor 1 reduced apoptotic cell death and prevented myocardial tissue injury in these groups. The efficiency of calpain inhibitor was very marked in MI after long-term high dose alcohol consumption.

Evaluación de los conocimientos, actitudes y prácticas de los estudiantes de escuelas vocacionales de servicios de salud respecto a COVID-19 / Evaluation of knowledge, attitudes and practices of health services vocational schools’ students with regard to COVID-19

Resumen Introducción: La intervención más crítica para controlar la infección por SARS-CoV-2 requiere el conocimiento y la actitud correctos hacia el virus. Objetivo: Determinar el conocimiento, las actitudes y las prácticas de los estudiantes de una escuela vocacional de servicios de salud respecto a COVID-19. Métodos: Estudio transversal realizado entre mayo y junio de 2020 en una universidad de la región de Turquía. Los datos se recopilaron mediante un portal de encuestas en línea. Resultados: Se completaron y devolvieron 454 cuestionarios. Los estudiantes de técnicas de laboratorio médico y primeros auxilios y emergencias tuvieron puntuaciones de conocimiento significativamente más altas (p < 0.001). Más de 43 % de los estudiantes (n = 201) usaron televisores como su principal fuente de información sobre COVID-19. Se manifestó una actitud positiva hacia las aplicaciones, así como evitar lugares concurridos y mantener la higiene de las manos y la distancia social. Conclusiones: Los estudiantes de la escuela vocacional de servicios de salud tienen buen conocimiento y actitud positiva hacia COVID-19. Las principales fuentes de información fueron la televisión y las redes sociales, por lo que se debe prestar más atención a estos temas en el plan de estudios para utilizar fuentes de información basadas en la ciencia.

Abstract Introduction: The most critical intervention to control SARS-CoV-2 infection requires appropriate knowledge and attitude towards the virus. Objective: To determine the level of knowledge, attitudes and practices of students of a health services’ vocational school with regard to COVID-19. Methods: Cross-sectional study carried out between May and June 2020 in a university of the Turkish region. Data were collected through an online survey portal. Results: Four hundred and fifty-four questionnaires were completed and returned. Students of medical laboratory techniques and first aid and emergency medicine had significantly higher knowledge scores (p < 0.001). More than 43 % of the students (n = 201) used the TV as their main source of information on COVID-19. There was a positive attitude towards preventive measures such as avoiding crowded places and maintaining hand hygiene and social distance. Conclusions: Health services vocational school students have good knowledge and positive attitude towards COVID-19. The main sources of information were the TV and social media. For this reason, more attention should be given to these issues in the curriculum in order for science-based information sources to be used.

The investigation of the prenatal and postnatal alcohol exposure-induced neurodegeneration in rat brain: protection by betaine and/or omega-3.

PURPOSE: We aim to study the effect of neurodegeneration on the brain of rat pups caused by prenatal and postnatal ethanol exposure with modified liquid diet to elucidate protective effects of betaine and omega-3 supplementation. When ethanol is consumed during prenatal and postnatal periods, it may result in fetal alcohol syndrome (FAS) in the offspring. METHODS: Rats were divided into control, ethanol, ethanol + betaine, ethanol + omega-3, ethanol + omega-3 + betaine groups. The effect of betaine and omega-3 in response to ethanol-induced changes on the brain, by biochemical analyses cytochrome c, caspase-3, calpain, cathepsin B and L, DNA fragmentation, histological and morfometric methods were evaluated. RESULTS: Caspase-3, calpain, cathepsin B, and cytochrome c levels in ethanol group were significantly higher than control. Caspase-3, calpain levels were decreased in ethanol + betaine, ethanol + omega-3, and ethanol + omega-3 + betaine groups compared to ethanol group. Cathepsin B in ethanol + omega-3 + betaine group was decreased compared to ethanol, ethanol + betaine groups. Cathepsin L and DNA fragmentation were found not statistically significant. We found similar results in histological and morfometric parameters. CONCLUSION: We found that pre- and postnatal ethanol exposure is capable of triggering necrotic cell death in rat brains, omega-3, and betaine reduce neurodegeneration. Omega-3 and betaine may prove beneficial for neurodegeneration, particularly in preventing FAS.