Abstract

Background and Aim: Cardiac rehabilitation improves the functional capacity of patients with heart failure. Therefore, the aim of this study was to investigate the effect of eight weeks of high frequency periodic training on mutagenic fraction and serigalctin 3 levels in cardiac patients.

Methods: In this quasi-experimental study, 24 heart patients (57.18 ± 6.17 years, 76.5 ± 13.89 kg, 25.34 ± 3.39 mm, 5.5 ± 5.5 cm) (169 cm) in Alzahra hospital in an injection fraction of 40-50% were randomly divided into two groups of severe routine exercises and control group. The exercise program included 12 repetitions of 1.5 minutes of activity on a bicycle and 8 repetitions of 1.5 times the activity on the treadmill, and between each period, 45 to 60 seconds of active rest with a 40-60% VO2peak intensity, which lasted for 8 Weekly and 3 sessions per week. The intensity of exercise with 50-60% of VO2peak started in the first week and was gradually increased by 10% every week and lasted from the week 4 to the end of the training protocol at an intensity of 80-90%. Blood samples were taken before and 48 hours after the last training session in the same conditions in both groups. Serigalcine 3 levels were measured using ELISA kit. The collected data were analyzed using independent t-test and paired T-test.

Results: The results showed that in the post-intensive training group, the level of Galactine 3 decreased (p = 0.003) and the mutation fraction increased (p = 0.001) in the training group, before the training, and in the control group Compared to pre and post test, Galactin Level 3 was found to increase (p = 0.001) and decrease in mutation fraction (p = 0.003). Comparing the two groups, the training group showed a significant decrease in Galactin 3 (p = 0.001) and a significant increase in the mutation fraction (p = 0.001).

Conclusion: Severe periodic exercises to reduce galactin levels 3 and increase the injectable fraction can improve cardiac function in cardiovascular patients.

Abstract:

Background & aim: Cardiovascular disease is one of the principal causes of mortality in the world. Oxidative stress plays a major role in the development of cardiovascular diseases. Physical activity improves the antioxidant status of the heart tissue. The aim of the present study was to investigate the levels of oxidative and antioxidant indices of the heart tissue of exposed male rats exposed to doxorubicin after eight weeks of severe routine training and consumption of crocin.

Methods: In the present experimental study, 50 male Wistar rats with a mean age of 8 weeks and an average weight of 200-220 g were randomly assigned to 5 healthy control groups (saline), doxorubicin (control), doxorubicin crocin, doxorubicin training, and doxorubicin crocin training. The training groups completed the course with two severe periods in the first week and completed 8 severe periods in the last weeks. After 8 weeks, malondialdehyde levels (MDA) and superoxide dismutase (SOD) and catalase (CAT) enzymes activity were measured in cardiac tissue. Data were analyzed by independent t-test, two way ANOVA.

Results: Data analysis indicated a significant increase in malondialdehyde level and a significant decrease in the activity of superoxide dismutase and heart catalase in Doxorubicin group compared to healthy control group (p=0.001). Moreover, the results revealed a significant decrease (P=0.001), crocin (p=0.001), and the combination of exercise and crocin (p=0.025), and a significant increase in the activity of superoxide dismutase and catalase. In the result it was found that exercise (p=0.001), crocin (p=0.001), and exercise combinations (p=0.005) showed that in the comparison between the groups, the effect of exercise and crocin alone success. There was no significant difference, but there was a significant difference between their combined effect and the effect of each of these two interventions (exercise and crocin) alone, and these two effects amplified each other (p=0.001).

Conclusion: It seems that regular high intensity interval training, supplementation of crocin, or a combination of these two, could be achieved by decreasing levels of oxidative index, malondialdehyde and increased activity of antioxidant enzymes of superoxide dismutase and catalase of heart tissue, protective effects against oxidative damage of doxorubicin have. It appeared that combining these two interventions may have a better preventive and therapeutic strategy than their one-way use.

Abstract

Background & aim: Non-alcoholic liver disease is the main liver disease associated with malnourished diet and overweight habits. The purpose of this study was to compare the effects of 8 weeks of intense intolerant training (HIIT) and low intensity endurance training (LIET) on Hig2 gene expression and liver triglyceride content in fatty liver (NAFLD) rats.

Methods: In the present experimental study, 40 male wistar rats were randomly divided into four equal groups. The control group, LIET and HIIT, who consumed high fatty foods for the first sixteen weeks with the aim of developing fatty liver, and the sham group that used standard food during this period. The HIIT group's practice consisted of stages of extreme riding based on a percentage of maximum speed, which was separated by low-intensity running as active rest. The practice of the LIET group was also matched according to the distance traveled by the HIIT group. At the end of 8 weeks of training, the expression of Hig2 gene and liver fat content were measured. The collected data were analyzed using Kruskal-Wallis statistical tests.

Results: A significant difference was seen between the two groups in the expression of Hig2 (P = 0.026) and IHL (K2 = 32.84, p = 0.001). Significant differences were observed in Hig2 between the control group and the HIIT group (p = 0.031) and the control group with PID (p = 0.012), but no significant differences were observed in Hig2 between the HIIT group and the IR group (453/0 = p). Also, there were significant differences in IHL between control group and HIIT (p = 0.001) and control group with PID (p = 0.001). Also, there were significant differences in IHL between HIIT group and IR group (p = 0.003).

Conclusion: Severe periodic exercises and low-intensity continuous exercises by reducing the expression of Hig2 gene reduce the content of liver fat and improve NAFLD. Also, the reduction of liver fat in the severe periodic exercise group occurs independently of weight loss.