RESUMO
ABSTRACT Objectives: To determine the relationship between exercises with the serum fibroblast growth factor 21 (FGF21) levels and glucose and lipid profile in menopausal type II diabetic women. Methods: Menopausal women with type II diabetes mellitus were divided into three groups including control (n = 14), aerobic exercise (n = 14) and resistance exercise groups (n = 14). The mean levels of serum glucose, LDL-C, HDL-C, insulin, TG and cholesterol were measured in all participants after 8 weeks of exercise. Serum FGF21 was also measured by ELISA method. Results: The mean of FGF21 levels after exercise was increased significantly in the both aerobic (p < 0.001) and resistance exercise (p = 0.001) groups. The mean of glucose, LDL-C, TG and cholesterol was decreased significantly after exercise in the both exercised groups (p < 0.01). A significant decline had been found for insulin levels and also insulin resistance in the both aerobic (p = 0.001) and resistance (p = 0.003) groups. There was a negative and significant correlation between FGF21 levels with total cholesterol contents (p = 0.001). Conclusion: Aerobic and resistance exercises increase the mean value of FGF21 levels and as the result decline the mean levels of glucose and lipids in blood of menopausal women with type II diabetic mellitus.
RESUMO
Background and Objective: Oxidative stress plays a major role in the structural and functional changes of the myocardium due to diabetes. This study was done to determine the effect of swimming training and arbutin supplement on cardiac antioxidant enzymes and oxidative stress in diabetic rats
Methods: In this experimental study, 42 male Wistar rats were randomly allocated into 6 groups including control, diabetes, Arbutin, diabetes+Arbutin, diabetes+exercise and diabetes+ exercise + Arbutin [combined]. Diabetes induced using alloxan [90 mg/kg/bw, intraperitoneally]. Arbutin [50 mg/kg/bw, ip] was administered for 5 days a week. The exercise consisted of swimming training at 5 min to 36 min per day, 5 days a week for 6 weeks. Renal Malondialdehyde, catalase level and superoxide dismutase [SOD] activity were evaluated in animals
Results: Diabetes significantly increased cardiac Malondialdehyde level and decreased cardiac SOD activity and catalase level [P<0.05]. Six weeks of supplementation with Arbutin, swimming training and combined intervention significantly increased catalas level and superoxide dismutase activity compared to the diabetes group[P<0.05]. Malondialdehyde level significantly reduced in combined and exercise groups in comparison with diabetic group [P<0.05]
Conclusion: Regular training [swimming] and Antioxidant supplement [Arbutin] protect the cardiac tissue against diabetes-induced oxidative stress through their antioxidants capacity and the combination of the two interventions have synergic effect