AA Gaeini; N Ramezani; L Shafiei Neek
Abstract
Aim: Background: The liver xα receptor (LXRα) participates in glucose metabolism. On the other hand, glucose transfer in liver by glucose transporter 2 (GLUT2). Therefore, this study was designed to examine the changes of LXRα, GLUT2 genes expression in liver and insulin resistance ...
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Aim: Background: The liver xα receptor (LXRα) participates in glucose metabolism. On the other hand, glucose transfer in liver by glucose transporter 2 (GLUT2). Therefore, this study was designed to examine the changes of LXRα, GLUT2 genes expression in liver and insulin resistance after 8 weeks of aerobic training in type 2 diabetic rats. Method: Eighteen male 8-weeks-old Wistar rats were selected as research sample. Diabetes was induced by nicotinamide and streptozotocin. Five days after diabetes induction, fasting blood glucose was measured using blood glucose strips. Rats with fasting blood glucose between 126-400 mg were selected as diabetic. Rats were divided into two groups: control and training. The training program was running with the speed of 10–25 m/min for 15-40 min/day, 5% slope, 5 days a week for 8 weeks. Results: Diabetes induction resulted in significant increase in body weight (p=0.001). Training group had higher muscle weight (p=0.001) and HbA1c (p=0.001) but lower glucose (p=0. 001), insulin (p=0.002) and insulin resistance index (p=0.002). LXRα and GLUT2 gene expressions were not different significantly. Conclusion: It seems that 8 weeks aerobic training with 60-80% of vo2max can induce some positive metabolic changes in diabetic rats but did not induce any significant changes in LXRα and GLUT2 genes expression in liver tissue.
Ahmad Abdi; Nasrin Ramezani; Hasan Haji
Volume 5, Issue 1 , June 2015, , Pages 59-68
Abstract
Aim: Oxidative stress is an affective factor in insulin resistant, diabetes and other problems increasing blood glucose that seen in type 1 and 2 diabetes is an effective factor in producing oxidative stress. The aim of this study was to evaluate the effect of resistance training and Coriandrum sativum ...
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Aim: Oxidative stress is an affective factor in insulin resistant, diabetes and other problems increasing blood glucose that seen in type 1 and 2 diabetes is an effective factor in producing oxidative stress. The aim of this study was to evaluate the effect of resistance training and Coriandrum sativum on oxidative stress factors in diabetic male rats. Method: The present experimental study was conducted on 40 adult male rats. After induction of diabetes, the rats were randomly divided into four equal groups (1: resistance training, 2: resistance training-Coriandrum sativum extract, 3: Coriandrum sativum extract, and 4: control). Diabetic condition was induced by using 55 mg af streptozotosin per one kg body weight. Then they performed 6 weeks of resistance training (five days a week for 6 weeks and with intensity of 30-100% rats weight) and drank oral Coriandrum sativum extract (150 mg/kg daily). After 6 weeks serum levels of total antioxidant capacity (TAC), superoxide dismutase (SOD) and catalase (CAT) were measured. Results: The results showed that resistance training alonge with Coriandrum sativum extract increased serum levels of TAC, SOD and CAT (p<0.05) significantly. Also, TAC level was increased in resistance and Coriandrum sativum extract groups (p<0.05). Conclusion: It seems that six weeks at resistance training combined with Coriandrum sativum extract may have a positive effect on body anti-oxidant system and treatment of diabetes.
