Background Gestational diabetes is the most common medical complication in pregnancy, and it has many side effects for the mother and the fetus. The aim of this study was to evaluate the effect of oat bran consumption on gestational diabetes. Methods This study is a randomized clinical trial that was performed on 112 women with gestational diabetes treated with diet. Participants were randomly divided into two groups of 56. Participants in both groups were given a diet for gestational diabetes. In addition to the diet, the intervention group received 30 g of oat bran daily for 4 weeks at lunch and dinner. Tests of fasting blood glucose and two-hour postprandial (2hpp) glucose were taken from both groups: before the intervention, and 2 and 4 weeks after the start of the intervention. Data analysis was performed using SPSS statistical software (version 22) using independent t-test, as well as Chi-square and Mann-Whitney tests. P values less than 0.05 were considered statistically significant. Results There was no statistically significant difference between the two groups in terms of mean blood glucose before the intervention, while 2 and 4 weeks after the intervention, mean fasting blood glucose and two-hour postprandial (2hpp) glucose decreased significantly in the intervention group compared with the control group (P < 0.001). Conclusion Based on the results of this study, the addition of oat bran to the standard diet for pregnant women with gestational diabetes reduced fasting blood glucose and two-hour postprandial (2hpp) glucose. More detailed studies with higher sample sizes are recommended to prove the effectiveness of this valuable dietary supplement. Trial registration IRCT registration number:IRCT20191220045828N1. Registration date: 2020-04-18. Registered while recruiting.

Introduction: Amyloid plaques in the brain increase with age. Thus, the present study aimed to evaluate the effect of continuous and interval training on Amyloid β 42 (Aβ42) and Malondialdehyde (MDA) levels in hippocampus of elderly rats. Methods: The present study was experimental one with two experimental groups and one control group. Thirty old male Wistar rats (18 weeks-old) divided into 3 groups, including interval training, continuous training, and control. Continuous training was performed for 8 weeks with 65 to 70% VO2max and interval training was performed for 8 weeks with 5-8 repetitions of 2 minutes of working with 80-100% VO2max and 2 minutes active rest with 50% of VO2max for 8 weeks. Hippocampal samples were extracted 48 hours after the last training session to measure protein levels of Aβ42 and MDA. One-way ANOVA and Tukey post hoc test was used for data analysis. Results: Hippocampus Aβ42 levels in continuous training groups were significantly lower than the control group (P=0.001). In addition, Aβ42 levels in hippocampus of interval training groups were significantly lower than the control group (P=0.001). However, no significant differences were found in Aβ42 levels between continuous and interval training groups (p=0.502). MDA levels in continuous training groups were significantly lower than the control group (P=0.016). In addition, MDA levels in interval training groups were significantly lower than the control group (P=0.046) But no significant differences were found in hippocampal MDA protein levels between continuous and interval training groups (p=866). Conclusion: Continuous and interval training through decreasing oxidative stress, decrease Aβ42 levels in the hippocampus of the elderly rat, thus probably continuous and interval training can prevent neurodegenerative disease caused by aging through modulating oxidative stress and Aβ42.