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Showing 7 results for Type 2 Diabetes

P Farzanegi, Pp Ayatollahi, Ar Barari, M Fakori Joybari, S Shirali, M Shojaee, A Khandandel,
Volume 8, Issue 2 (7-2014)
Abstract

Abstract Background and Objective: Imbalance Between antioxidant defensive system and increased production of free radicals leads to oxidative stress that can be effective in making cellular damage and causing some diseases such as diabetes. The aim of the current study was to investigate the effect of eight-week purslane extract consumption on some peroxidant and antioxidants indicators in patients with type 2 diabetes. Material and Methods: The Participants were 16 women with type 2 diabetes who had not the history of once a week regular physical activity program, in previous five years. They were randomly divided into two groups of experimental, purslane supplementation for eight weeks, and control. Blood sampling was performed in two stages. Results: After eight weeks of purslane consumption, resting levels of MDA, SOD and CAT in Supplementation group showed a significant decrease compared to those of control group. Conclusion: Purslane consumption can improve peroxidant/antioxidant balance in women with type2 diabetes. Key words: Purslane, Peroxidant Balance, Antioxidant, Type 2 Diabetes
Marjan Vahedi, Parvin Farzanegi,
Volume 9, Issue 4 (10-2015)
Abstract

Abstract

      Background and Objectives: Diabetes induced oxidative stress plays an important role in pathological damage to the heart and liver by increased production of extracellular matrix. It is thought that the use of medicinal plants, particularly Portulaca oleracea. L and regular exercise are effective. The aim of this study was to evaluate the effects of Portulaca oleracea. L consumption along with resistance training on cathepsin S, cystatin C and C-reactive protein (CRP) levels on type 2 diabetes patients.

     Methods: In this semi-experimental study, 28 female type 2 diabetes patients with a mean age of 52 were randomly devided into 4 groups of control, exercise, supplement and supplement-exercise. Portulaca oleracea. L supplement was cosumed 7.5 g per day. Resistance training program was performed with a rubber band for 8 weeks, 3 days a week for 60 minutes with40-50% intensity, up to a maximum repetition. Blood samples were taken before and 48 hours after the last intervention.

     Results: After eight weeks, cathepsin S, cystatin C and CRP levels in the supplementation and supplementaion-exercise group were significantly reduced (P<0.05). There were also significant differences between the groups.

    Conclusion: Portulaca oleracea. L consumption and resistance training have each separate positive impacts on the cathepsin S, cystatin C and CRP levels, but the simultanous effect of Portulaca oleracea. L seed consumption and physical activity can lead to a better efficiency.

     Keywords: Portulaca oleracea, resistance training, cathepsin S,  cystatin C, C-reactive protein, type 2 diabetes mellitus.


Ma Ghaffari , Gh Mohammadzadeh , M Rezazadeh , H Rashidi ,
Volume 10, Issue 3 (5-2016)
Abstract

ABSTRACT

         Background and Objective: Vitamins C and E are  the two main antioxidants involved in prevention of type 2 diabetes, by reducing oxidative stress. The aim of this study was to evaluate the effects of vitamins C and E supplementation independently, on serum levels of insulin, high sensitivity C-reactive protein (hs-CRP) and resistin in people with type 2 diabetes.

        Methods: In this study, 38 patients with type 2 diabetes (17 men and 21 women) received 1,000 mg/day vitamin C, and 40 patients with type 2 diabetes (21 men and 19 women) received 400 IU/day vitamin E orally. Fasting blood glucose and lipid profile were measured using enzymatic method. Hs-CRP was measured by immunoturbidimetric method, and serum insulin and resistin levels were measured by ELISA.

         Results: total cholesterol, triglycerides, hs-CRP, insulin and resistin significantly were reduced after vitamin C supplementation (P<0.001). Moreover, the level of total cholesterol (P =0.018), low-density lipoprotein, triglycerides and hs-CRP significantly changed after vitamin E supplementation (P=0.001).

          Conclusion: The daily intake of 1,000 mg of vitamin C and 400 IU of vitamin E may be useful in reducing diabetic complications by decreasing serum levels of hs-CRP and lipid profile in people with type 2 diabetes.

 


Nasrin Ramezani , Behnaz Vanaky , Nader Shakeri , Zahra Soltanian , Fatemeh Fakhari Rad , Zahra Shams ,
Volume 13, Issue 1 (1-2019)
Abstract

ABSTRACT
           Background and Objectives: Diabetes is one of the most common diseases and a major risk factor for cardiovascular disease. Studies have shown that regular exercise can affect apoptosis in cardiomyocytes. The purpose of this study was to investigate the effect of high-intensity interval training on the expression of Bcl-2 and Bax as important apoptosis factors in diabetic rats.
           Methods: After inducing diabetes in 20 male Wistar rats (weighing 250 ± 1.15 g), the rats were randomly divided into a control group and a training group. The training group performed high-intensity interval training five days a week for four weeks, and the control group did not perform any training. After the intervention, RNA was extracted and TCF mRNA was subjected to real time RT-PCR for measuring Bax and Bcl-2 expression in the heart tissue of diabetic rats. Data were analyzed by IBM SPSS Statistics V22 using independent t-test. P-values less than 0.05 were considered as statistically significant.
           Results: The expression of Bcl-2 increased significantly and the expression of Bax decreased significantly after the four-week training intervention.
           Conclusion: The high-intensity interval training can have beneficial effects on the expression of apoptotic genes in rats with type 2 diabetes.
           Keywords: Bax, Bcl-2, High intensity interval training, Heart, Type 2 diabetes.

Ali Salehi, Hajar Abaszadeh, Parvin Farzanegi,
Volume 13, Issue 4 (7-2019)
Abstract

Background and objectives: Pyruvate dehydrogenase kinase 4 (PDK4) is an enzyme involved in the regulation of glucose and fatty acid metabolism and homeostasis. The purpose of this study was to investigate effects of continuous exercise and resveratrol supplementation on insulin resistance and expression of PDK4 in the soleus muscle of elderly rats with type 2 diabetes.
Methods: After inducing diabetes in 42 old male rats (mean weigh: 250-300 g, aged about two years), the rats were randomly divided into six groups: healthy control, diabetic control, continuous exercise, supplementation, continuous exercise + supplementation and sham. The continuous exercise group was subjected to eight weeks of running, five sessions a week. Daily 20 mg/Kg body weight resveratrol supplementation was administered to the supplementation and supplementation + exercise groups. To evaluate insulin resistance, the HOMA-IR insulin resistance index was calculated as the product of insulin (μIU/mL) and glucose (mmol/L) divided by 22.5. Expression of the PDK4 gene in the soleus muscle was analyzed by RT-PCR. Data were analyzed with IBM SPSS Statistics 23 using one-way ANOVA and Tukey's post hoc test at a significance level of 0.05.
Results: Resveratrol alone or combined with continuous exercise significantly increased PDK4 expression and slightly decreased insulin resistance in the subjects.
Conclusion: Our results show that diabetes is associated with reduced PDK4 expression and increased insulin resistance. These effects can be effectively reversed in the soleus muscle of elderly diabetic rats by resveratrol supplementation alone or combined with continuous exercise.
 
Mojtaba Abbasi, Amirhooman Asadi, Hadis Musavi,
Volume 13, Issue 6 (11-2019)
Abstract

Background and Objectives: Reduced insulin secretion in Type II Diabetes Mellitus (T2DM) results in fat accumulation in hepatocytes and increase in liver enzymes. The hepatocyte destruction due to non-alcoholic fatty liver is associated with increased risk of cardiovascular diseases. Therefore, the aim of this study is to evaluate the association of liver transaminases with lipid profile in T2DM patients compared to healthy subjects.
Methods: A total of 1000 subjects (500 males and females with T2DM and 500 healthy subjects) participated in this case-control study. Diagnosis of T2DM was made based on the World Health Organization (WHO) criteria. Fasting blood samples (5 ml) were obtained from all subjects in the morning and the serum was extracted for the assessment of biochemical parameters was used to compare parameters between healthy and T2DM patients. Data were analyzed by SPSS version 20 and using Mann-Whitney test and Spearman correlation coefficient.
Results: The serum total cholesterol (TCH), triglyceride, Alanine Aminotransferase (ALT), Aspartate Transaminase (AST), TCH/high density lipoprotein (HDL-C) ratio and atherogenecity index plasma were significantly higher in T2DM group compared to healthy individuals (p≤0.006). Among the lipid profile parameters only Risk ratio (TCH/HDL-C) was positively correlated with ALT (p=0.037) while no significant correlation was observed for other variables (P>0.05)
Conclusion: T2DM Patients have higher lipid profile, atherogenecity index and liver enzymes compared to healthy individuals. Furthermore, TCH/HDL-C was significantly correlated with ALT.
Hossain Torabi, Mojtaba Eizadi, Ali Jalalvand, Ebrahim Zarrinkalam,
Volume 16, Issue 1 (1-2022)
Abstract

Background and objectives: Clinical evidence has demonstrated the important role of adiponectin in insulin signaling pathways in target tissue. The aim of this study was to determine effects of aerobic training on insulin sensitivity, glucose level, and adiponectin expression in subcutaneous adipose tissue of type 2 diabetic rats.
Methods: Type 2 diabetes was induced in 14 male wistar rats by intraperitoneal injection of nicotine amide and streptozotocin. The rats were randomly divided into an exercise group (n=7) and a control group (n=7). The rats in the exercise group performed aerobic training in from of treadmill running, five sessions a week, for 12 weeks. Subjects in the control group did not perform any training. Glucose level, insulin level, insulin sensitivity, and adiponectin expression in subcutaneous adipose tissue were determined at baseline and 48 hours after the lasting training session. Independent t-test was used for comparing the variables between the study groups.
Results: Aerobic training resulted in a significant increase in serum insulin (p=0.006), insulin sensitivity (p=0.003), and adiponectin expression in subcutaneous adipose tissue (p=0.037) compared with the control group. In addition, the training caused a significant decrease in fasting glucose level compared with the control group (p<0.001).
Conclusion: Based on these findings, the decrease in blood glucose may be attributed to the improvement of adiponectin-dependent insulin signaling pathways in adipose tissue in response to aerobic training. However, more cellular-molecular studies are needed to understand the mechanisms responsible for these changes.

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