Objectives: To explore the attitude and perception of undergraduate medical students and their staff towards the educational methods (conventional versus online) and to assess their performance accordingly. Methods: It was a comparative cross sectional study, conducted at the Faculty of Medicine, Al- Imam University, Riyadh, Saudi Arabia on May 30, 2020. A structured questionnaire was designed to collect the data from students and staff about conventional teaching, online teaching, conventional examination and online examination. It was in the form of 5-point Likert-type scale ranging from 5-strongly agree, to 1-strongly disagree, in addition to age and gender. The results of conventional and online examination were recorded. Results: The total sample reached 230 students and 20 staff. Mean scores for conventional teaching and examination were significantly higher than online. The mean values for grades of online final examination was significantly higher than those of midterm conventional examination. Most of the statements related to conventional teaching and examination attained a good response where students and their staff conveyed a negative perception pertinent to online examination. Students and staff showed a higher percentage of agreement in favor of online examination allowing immediate feedback. Conclusion: Conventional teaching was perceived as more effective, accessible, less technical difficulties and less fraud and cheating. Online learning, should be allowed in undergraduate medical education, by combining it with conventional learning, and students should be prepared to it.

Background and Objectives: High fructose intake is associated with non-alcoholic fatty liver disease (NAFLD), a chronic liver disease that is on the rise worldwide. New alternatives for treatment, such as bioactive phytochemicals, are needed. The aim of this study was to investigate the beneficial role of resveratrol in treating non-alcoholic steatohepatitis (NASH). Materials and Methods: Sixty male albino rats were allocated to three groups: group I, the normal control group; group II, the fructose-enriched diet group (FED), which was fed a 70% fructose diet for six weeks to induce NASH; and group III, the resveratrol–FED group (RES + FED), which was given the same FED diet plus an oral dose of 70 mg/kg resveratrol (RES) every day for an additional six weeks. We performed histological evaluations and assessed blood lipids and liver enzymes to study resveratrol’s impact on NASH. Quantitative real-time PCR was used to assess the mRNA expression of nuclear factor E2-related factor 2 (Nrf2) in the liver samples. ELISA was used to measure Beclin 1, AMPK, IL-6, and the DNA-binding activity of Nrf2. Oxidative stress indicators, including GSH, SOD, and MDA, were evaluated spectrophotometrically. Results: Resveratrol effectively alleviated the biochemical and histopathological abnormalities associated with NASH, improving autophagy by raising Beclin 1 levels while reducing inflammation by decreasing IL-6 levels. Furthermore, resveratrol restored the liver architecture and the oxidative balance, as evidenced by the decreased MDA levels and improved antioxidant status via elevated GSH and SOD activities, as well as the activation of the AMPK/Nrf2 signaling axis. Conclusions: This study specifically examines resveratrol’s therapeutic effects in a high-fructose diet-induced NASH model, focusing on the AMPK/Nrf2 signaling pathway to address oxidative stress and autophagy, providing novel insights into its molecular mechanism of action. Resveratrol reduces NASH by boosting autophagy and activating the AMPK/Nrf2 pathway. These findings underscore the potential of resveratrol as a promising therapeutic agent that can support treatment alongside conventional medications in the management of non-alcoholic steatohepatitis (NASH).

Background and Objectives: We evaluated the impact of the second-generation macrolide azithromycin on pregnant albino rats’ livers and assessed the protective role of folic acid. Materials and Methods: For this study, forty pregnant rats were treated and then examined. Forty pregnant albino rats were divided into four equal groups (I–IV). In Group I, each pregnant rat was gavaged with 1 mL distilled water on day 16 of pregnancy, then 0.5 mL from day 16 of pregnancy to day 20. In Group II, each pregnant rat was gavaged with 0.45 mL distilled water containing 9 mcg folic acid from day 17 of pregnancy to day 20. In Group III, each pregnant rat was gavaged with 1 mL distilled water containing 9 mg azithromycin on the 16th day, then 0.5 mL distilled water containing 4.5 mg azithromycin from day 17 of pregnancy to day 20. In Group IV, each pregnant rat was gavaged with 1 mL of distilled water containing 9 mg azithromycin and 0.45 mL distilled water containing 9 mcg folic acid on the 16th day, then 0.5 mL of distilled water containing 4.5 mg azithromycin and 0.45 mL distilled water containing 9 mcg folic acid from day 17 of pregnancy to day 20. At the end of the experiments, blood samples and the livers of the studied groups were subjected to biochemical, histological, and morphometric analysis. Results: Azithromycin induced pathological changes in the livers, as evidenced by disturbed lobular architecture, cytoplasmic vacuoles, deeply stained hepatic nuclei, and elevated liver enzymes. The co-administration of folic acid ameliorated most pathological changes. Conclusions: Azithromycin caused pathological alterations in the livers of pregnant rats, and the co-supplementation of folic acid with azithromycin is encouraged, to minimize these changes.

Levetiracetam (LEV) is being used by women with reproductive-age epilepsy at a significantly higher rate. The purpose of the study was to assess how levetiracetam treatment during pregnancy affected the offspring's weight and cerebellum. Forty pregnant rats were divided into two groups (I, II). Two smaller groups (A, B) were created from each group. The rats in group I were gavaged with approximately 1.5 mL/day of distilled water either continuously during pregnancy (for subgroup IA) or continuously during pregnancy and 14 days postpartum (for subgroup IB). The rats in group II were gavaged with about 1.5 mL/day of distilled water (containing 36 mg levetiracetam) either continuously during pregnancy (for subgroup IA) or continuously during pregnancy and 14 days postpartum (for subgroup IB). After the work was completed, the body weight of the pups in each group was recorded, and their cerebella were analyzed histologically and morphometrically. Following levetiracetam treatment, the offspring showed decreased body weight and their cerebella displayed delayed development and pathological alterations. These alterations manifested as, differences in the thicknesses of the layers of cerebellar cortex as compared to the control groups; additionally, their cells displayed cytoplasmic vacuolation, nuclear alterations, fragmented rough endoplasmic reticulum and lost mitochondrial cristae. Giving levetiracetam to pregnant and lactating female rats had a negative impact on the body weight and cerebella of the offspring. Levetiracetam should be given with caution during pregnancy and lactation.

Background: Obesity often affects kidney health. Irisin, a myokine released during exercise, may exert renoprotective effects. This study examined the effects of swimming-induced irisin on kidney health in obese rats. Materials and methods: Sixty male rats were divided into four groups: control non-trained, obese non-trained, control trained, and obese trained. Obesity was induced using a high-fat diet, and an 8-week swimming program was implemented. Measurements included body and kidney weights, renal function markers (serum urea, creatinine, and urinary albumin), lipid profile, fasting glucose, insulin, and HOMA-IR. Levels of skeletal muscle irisin and PGC-1α were measured by ELISA, and citrate synthase activity was assessed spectrophotometrically. Renal tissue analysis included phospho-AMPKα1 (measured by ELISA), Complex I activity, ATP, Malondialdehyde (MDA), superoxide dismutase (SOD) activity (measured spectrophotometrically), and PGC-1α mRNA expression (qRT-PCR). Renal tissues were examined under a light microscope for histopathological evaluation, followed by semi-quantitative scoring of glomerular and tubulointerstitial lesions, morphometric analysis of glomerular tuft area, and a composite score of cleaved caspase-3 immunoexpression. Results: Exercise increased skeletal muscle levels of irisin, PGC-1α, and citrate synthase activity. It also activated renal AMPK, improved mitochondrial function, increased PGC-1α mRNA levels, and reduced renal oxidative stress, as evidenced by decreased malondialdehyde (MDA) levels and restored superoxide dismutase (SOD) activity in obese rats. These changes were associated with improved renal function, reduced tubular injury and apoptosis in obese rats, partial restoration of the glomerular tuft area, lower lesion scores, and reduced cleaved caspase-3 immunoexpression. Conclusions: These findings suggest that irisin may mediate the renoprotective effects of exercise through the AMPK–PGC-1α pathway, highlighting swimming as a beneficial non-pharmacological intervention and supporting a potential adjunct role for irisin in managing obesity-related CKD.