Iranian Journal of

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Background: Previous clinical and experimental studies suggest the valuable effect of antioxidants on lipids status. The present study was designed to investigate the efficacy of silymarin treatment as an antioxidants on lipids profile in type II diabetic hyperlipidemic patients. Methods: A 4-month randomized double blind clinical trial was conducted in 54 non-insulin dependent diabetic hyperlipidemic patients in a two well – matched groups. First group (n=29) received 200mg silymarin tablet 3 times a day plus standard therapy, while the control group (n=25) received placebo tablet 3 times a day plus standard therapy. The patients were visited monthly and fasting blood glucose, total cholesterol, LDL, HDL cholesterol, triglyceride, SGOT and SGPT were determined at the beginning and at the end of the study after four months.
Results: Results revealed that in silymarin treated patients, fasting blood glucose, LDL and total cholesterol, triglycerid, SGOT, SGPT and glucose level at the end of the study were significantly decreased as compared to beginning of the study. In placebo treated patients fasting blood glucose level at the end of the study were significantly increased as compared to beginning of the study.
Conclusion: In conclusion, the silymarin as an herbal antioxidant have beneficial effects on reducing glucose and lipids profile in type II diabetic patients

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Background: up to know many herbal medicines with different oral formulations have been recommended for diabetes. The aim of this study was to investigate the effect of 4 herbal hypoglycemic agents include garlic (Allium sativum) neem (Azadirachta indica), tulsi (Ocimum sanctum) and bitter gourd (Momordica charantia) on blood glucose, antioxidant enzymes and metal ions in diabetics
Methods: Crude extracts of herbal agents was prepared and each one was given to one group of diabetic rats. Two group of diabetic rats received insulin and glibenclamide. As controls, two groups of healthy and diabetic rats received saline. Body weight, fasting blood glucose, antioxidant enzymes and metal ions were measured before and after the study.
Results: All agents including herbal preparations, insulin and glibenclamide reduced the levels of blood sugar and lipid peroxide when compared with diabetic control. These agents also increased levels of antioxidant enzymes in diabetic rats. Antioxidant enzymes decreased significantly in diabetic controls. Metal ions increased in diabetic rats treated with herbal agents, insulin and glibenclamide but decreased in diabetic controls.
Conclusion: Above mentioned herbal plants may be useful in the treatment of diabetes as they not only have hypoglycemic effect but they also protect rats from free radical mediated cellular injury by improving the activity of antioxidant enzymes. They also improve the levels of metal ions which are associated with antioxidant enzymes.

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Background: Diabetes is one of the most common diseases of the body's endocrine system, Based on present forecasts of its prevalence will increase in human societies. Diabetes mellitus consists of 5 groups, its two major groups: type I diabetes or insulin-dependent and type II diabetes or non-insulin dependent diabetes. The aim of this study was to evaluate the effect of alcoholic extract of green wheat leaves on glucose, cholesterol, triglycerides, LDL, HDL and total antioxidant capacity of blood serum in alloxan-induced diabetic mice.
Methods: In this study, 40 male mice with an average weight of 25-20 grams in eight groups of five rats: The negative control, positive control (sham), Methformin (60mg/kg), green Wheat leaf extract (100, 200, 400, 800 and 1000mg/kg) were tested. Blood glucose was measured at baseline, then in the positive control group and the experimental groups by Alloxan (120mg/kg) Diabetes was induced by intraperitoneally. During the study, the positive control group and experimental groups received aforementioned compounds for 10 days via intraperitoneally and after 48 hours of each group blood samples were taken through the intraventricular anesthesia and glucose, cholesterol, triglycerides, LDL, HDL and total antioxidant capacity in serum were measured. Quantitative results achieved in this research by one-way ANOVA and Tukey post hoc test between the groups studied Considering the significance level of p <% 5 were analyzed.
Results: The results showed that blood glucose changes in green Wheat leaf extract and metformin groups compared with the positive control group and negative control group was significant at the 5% level and In all under study groups blood glucose levels, Compared with the positive control group decreased and is close to the negative control group also in doses of 100, 200, 800 and 1000 mg/kg Reduced blood glucose is better than methformin group. Methformin and green Wheat leaf extract caused a significant increase at all doses studied in the TAC's Blood. Methformin and green Wheat leaf extract on the amounts of LDL, HDL and cholesterol in diabetic groups had no significant effect and did not have significant difference with other groups. There was no significant effect of different doses of green Wheat leaf extract on the blood triglycerides. However, metformin has a significant impact on triglyceride levels.
Conclusion: The results of the effects of green Wheat leaf extract on glucose and serum antioxidant capacity
It can be noted that these extracts in the treatment of diabetes and reduce its complications can be considered as an option.
 

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Background: Increasing blood glucose levels is associated with a reduction in the antioxidant defense of the body. The purpose of this study was to compare the effect of aerobic resistance exercises with and without ginger on some of the oxidative and antioxidant indices in type 2 diabetic women.
Methods: Twenty-two type 2 diabetic women with a mean age of 49.47±4.36 years, BMI 31.3±16.3 kg / m2, height 0.56±0.04 meters were selected randomly and they were divided into two experimental and control groups. Both groups performed 12 weeks, 3 sessions per week, exercises with intensity of 75-85%, 1RM in 8 stations, and after 5 minutes of rest, aerobic training exercises with an intensity of 75-85% of MHR. A daily group of 800 mg capsules of ginger rhizome powder and the other group consumed capsules containing wheat flour. 24 hours before and after training, MDA, TAC, SOD, GSH, HbAlc, glucose and insulin and body composition were measured.
Results: 12 weeks of combination exercise caused a significant decrease in glycosylated hemoglobin, insulin resistance, insulin resistance, lipid percentage, and a significant increase in TAC and GSH compared to baseline (P <0.05), while SOD and MDA Did not have any significant effect.
Conclusion: Combined exercise with and without zinc seems to improve antioxidant and some of the body composition indices in type 2 diabetic women.
 

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of obesity and inactive physical activity, and glucose modulation is of great importance in these individuals. Thyme was studied on type 2 diabetic rats by streptozotocin and high fat diet.
Methods: Male Wistar rats weighing 110±10 g were used in this study. The rats were randomly divided into four groups of Thymus + Exercise, Thymus, Exercise and Control groups. The extract was taken 200 g daily through a gavage syringe. Exercise included: Running on a treadmill at a speed of at least 20 m / min and a maximum of 38 m / min for 60 minutes daily, 5 days a week, for 8 weeks. Serum malondialdehyde (MDA), glutathione peroxidase (GTX), superoxide dismutase (SOD), catalase (CAT) were measured by ELISA method.
Results: Serum MDA and CAT levels were significantly higher in the control group (p = 0.002). The results also showed that there was no significant difference between SOD and GPX levels in different research groups (p = 0.790).
Conclusion: Intermittent exercise (HIIT) and thyme extract can improve oxidative and antioxidant balance in diabetic rats.

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Background: Thymus species have significant amounts of phenolic and flavonoid compounds and demonstrate strong antioxidant activities. Paraoxonase1 act as antioxidant enzyme and protect the low-density lipoprotein against oxidation. In our study we aimed to evaluate the antioxidant capacity of Thymus Kotschyanus Hydroalcoholic extract and its effect on serum paraoxonase 1 activity in healthy and diabetic person.
Methods: The antioxidant activity, and functional groups of the constituents in T. Kotschyanus Hydroalcoholic extract were determined using DPPH free radical scavenging assay, and The FTIR spectroscopy, respectively. Paraoxonase-1 activity was determined in 40 healthy and diabetic persons by measuring the rate of paraoxon hydrolysis substrate to p-nitrophenol, which absorbance was monitored at 405 nm. The data Statistically were analyzed by Duncan's and independent t-test.
Results: The IC50 values (the concentration with scavenging activity of 50%) was found to be 477.5 μg/ml. FTIR spectrum analysis showed biomolecules containing a hydroxyl group and aromatic ring in T. Kotschyanus hydroalcoholic extract. Serum paraoxonase activity in healthy and diabetic humans exposed to the extract at concentration of 1 mg/mL increased by 49.95 ± 3.57% and 51.05 ± 3.25%, respectively. Although there was a significant difference between serum enzyme activity in healthy and diabetic subjects in the presence and absence of the extract but the amount of enzyme activation affected by the extract in two healthy and patient did not show significant difference.
Conclusion: This plant extract increased enzyme activity due to the antioxidant properties and the presence of phenolic compounds in the plant extract.

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Background: One of the most common problems in diabetic patients is muscle atrophy. Therefore, the present study aimed to investigate the synergistic effect of endurance training with probiotic supplementation on Atrogin-1 and MuRF-1 genes gene expression in the soleus muscle of diabetic rats.
Methods: In this study, 32 male Wistar rats were randomly divided into one normal control (NC) and four diabetic groups: diabetic control (DC), diabetic supplement (SDC), diabetic training (TD), and diabetic supplement training (STD). The training protocol was performed with 60 to 65% of maximum speed reached five days a week for four weeks. At the same time, rats took two grams of probiotic dissolved in 30 ml of water daily. Expression of Atrogin-1 and MuRF-1 genes was measured by the qReal-TimePCR method. Data were analyzed by two-way analysis of variance at the significant level of P≤0.05.
Results: Atrogin-1 gene expression was significantly reduced in TD (P=0.001) and STD (P=0.000) groups compared to DC group. There was a significant difference between TD and STD groups in the expression of the Atrogin-1 gene (P=0.028). MuRF-1 gene expression was significantly reduced in TD (P=0.04) and STD (P=0.01) groups compared to DC. But there was no significant difference between TD and STD groups in MuRF-1 gene expression (P=0.36).
Conclusion: It seems that performing the aerobic exercise with probiotic supplementation is more effective in reducing the expression of the Atrogin-1 gene than any of these interventions alone. However, aerobic exercise with probiotic supplementation does not have a synergistic effect on reducing MuRF-1 gene expression in the soleus muscle of diabetic rats compared to aerobic exercise alone.

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Background: The apoptosis process as a common status in heart injuries could be imposed significantly by hyperglycemia chronically. Therefore, the aim of this study was to investigate the inhibitory effects of concurrent training and antioxidant supplementation individually and in combination on biogenesis and function of mitochondrial in the heart tissue of diabetic rats with STZ.
Methods: In this experimental study, fifty male Sprague Dawley rats were classified into five groups (n=10 each group): healthy rats as control, diabetic rats, diabetic combined resistance/endurance training, diabetic rats which consumed supplementation vitamin E and C, and the combined supplementation and training. Here, we calculated changes in genes expression based on artificial intelligence methods and evaluated genes expression in apoptotic influencing combined training and antioxidants vitamins consumption in heart injured models by streptozotocin via Real-Time PCR. Combination training including, respectively, resistance training, 5 days a week with increasing intensity of 5-45% of rat weight and endurance training on treadmill increasingly from 10-30 minutes and intensity of 40-75% of maximum speed during 8 weeks. Data were analyzed by two-way ANOVA (P<0.05).
Results: the relative expression of PGC1α and Tfam were significantly decreased between healthy control and diabetes controls group. The results indicated that significantly increased of PGC1α and Tfam in the training(P<0.05), supplement(P<0.05) and combination groups(p<0.05). In addition, in this study, it was observed that supplementation and exercise had an increasing effect on the expression of PGC1α and Tfam genes. On the other hand, glucose concentration and weight of rats treated with supplementation and exercise were significantly reduced compared to other groups (P<0.05).
Conclusion: Based on the results, interaction between antioxidant supplements and exercise reduced the glucose concentration and improved the mitochondrial biogenesis of heart tissue, while the combination of these two interventions compared to the effect of each alone, the effect has more.
 

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Background: Oxidative stress and insulin resistance in type 2 diabetes are one of the factors in the development of cognitive disorders and Alzheimer's. So measuring the changes in beta amyloid gene expression and insulin resistance as one of the prominent disorders in type 2 diabetes, following HIIT and thyme’s honey consumption is the aim of the research.
Methods: The present study was conducted with 36 young male Wistar rats, which were divided into 4 groups: control (C), interval training (T), thyme’s honey (H) and interval training-thyme’s honey (TH) was performed. The rats in the T and TH groups were trained for two months with intervals and intensity gradually increasing, and in the H and TH groups, they received 3 g/kg of thyme’s honey. Weight, fasting glucose and insulin were measured through the kit and insulin resistance index was done through the formula and gene expression were evaluated by RT-PCR. The findings were subjected to one-way and two-way ANOVA and Bonferroni's test.
Results: Non-significant (NS) increase in weight, significant increase in insulin and significant decrease in gene expression in all intervention groups compared to C, significant decrease in fasting glucose in T and TH groups compared to C, significant decrease in insulin resistance in T group compared to other groups, NS increase was observed in group H and TH compared to C.
Conclusion: HIIT and thyme’s honey had synergistic effect to reduce glucose and beta-amyloid gene expression as a preventive strategy for the occurrence of pathological features related to Alzheimer's and memory impairment in diabetics.

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Background: The present study aimed to investigate the changes in TRx-sh/TRx-s2 levels, GSH values, and total antioxidant capacity following 8 weeks of intense interval training with and without sodium citrate supplementation in diabetic rats.
Methods: In this semi-experimental and fundamental study, 50 male Wistar rats were randomly divided into 5 groups: healthy control, control control, selective - exercise, consumption-sodium citrate supplementation, and drink-sodium citrate supplementation. The training protocol included 8 weeks of HIIT training with an intensity of 90% of the maximum speed. The supplement and exercise-supplement groups received daily (764 mg/kg) sodium citrate supplement in the form of a solution in water, three hours before the exercise. 72 hours after the last training session, blood sampling was done and the ELISA method analyzed research variables. To compare study groups, one-way analysis of variance and LSD post hoc test were used in SPSS software (P≥ 0.05).
Results: The results showed that the levels of TRx-sh/TRx-s2, GSH, and TAC were significantly different among the five research groups (P= 0.001). Also, the results showed the levels of TRx-sh/TRx-s2, TAC, and GSH in the control-diabetic group (P= 0.001), diabetic-exercise (P= 0.001), and diabetic-supplement group (P= 0.001). and diabetic-supplement-exercise (P= 0.001) had a significant decrease compared to the healthy control group. The levels of TRx-sh/TRx-s2, GSH, and TAC in the diabetic-supplement and diabetic-supplement-exercise groups were significantly increased compared to the diabetic control group (P= 0.001). According to the difference in means, the increase of TRx-sh/TRx-s2, TAC, and GSH was higher in the diabetic-supplemented group.
Conclusion: According to the results of the research, it can be assumed that training and sodium citrate supplementation are effective in improving diabetes and this effect is probably exerted by increasing TRx-sh/TRx-s2, TAC, GSH.

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Background: Aging and consuming a high-fat diet lead to increased oxidative damage to various tissues, oxidative stress is a critical factor in the aging process that can cause direct damage to cellular structure. This study aimed to investigate the Effects of 8 Weeks of HIIT Training on the Nrf2 Gene Expression, lipid peroxidation and Insulin resistance in the pancreas tissue of Aged rats fed a high-fat diet.
Methods: In this experimental study, 20 aged male Wistar rats (age: 18 months and mean weight: 500±100 gr) were randomly divided into four groups including normal food control G1 (n=5), normal food + training G2 (n=5), high-fat food G3 (n=5) and high-fat food +training G4 (n=5). The high intensity interval training program was performed on a treadmill, three days a week for eight weeks. Nrf2 gene expression was performed using real-time PCR and malondialdehyde levels, glucose and insulin were measured using a kit and ELISA method. Data were analyzed by MANOVA test at the P<0.05.
Results: The results of the MANOVA statistical test on the interactive effect of training and diet indicated a significant difference in the insulin resistance index (P = 0.017 and F = 7.17). However, no significant effect was observed for the insulin factor (P = 0.30 and F = 1.13), glucose (P = 0.116 and F = 2.75), MDA (P = 0.87 and F = 0.028), and Nrf2 (P = 0.816 and F = 0.056).
Conclusion: In general, it can be stated that HIIT training in this research can improve insulin resistance by affecting the expression of the Nrf2 transcription factor gene by reducing the oxidant activity in aged rats.