scholarly journals Protective effect of interval exercise training with different intensity and alpha-lipoic acid supplement on Nav1.3 protein in soleus muscle of diabetic rats

2021 ◽  
Author(s):  
Seyedeh Fatemeh Fatemi ◽  
Seyed Abdollah Hashemvarzi ◽  
Amin Farzaneh Hesari
Keyword(s):  
Exercise Training ◽  
Soleus Muscle ◽  
Lipoic Acid ◽  
Diabetic Rats ◽  
Maximum Speed ◽  
Alpha Lipoic Acid ◽  
Intensive Exercise ◽  
Male Wistar Rats ◽  
Healthy Control ◽  
Intensity Training

Introduction: Diabetes is a common metabolic disease, which leads to diabetic peripheral neuropathy. Peripheral neuron damage result in Nav1.3 elevations. Exercise training has beneficial role in diabetes management and peripheral neuropathy. Alpha lipoic acid (ALA) is a powerful biological antioxidant. However, the role of exercise training and ALA on Nav1.3 are not well understood. The aim of the present study was to investigate the effect of training with different intensity and Alpha lipoic acid supplement on soleus muscle Nav1.3 protein in rats with type 2 diabetes. Thirty-five male Wistar rats were randomly divided into seven groups: healthy control, diabetic, complementary diabetic, intensive exercise diabetic, moderate exercise diabetic, intensive exercise + supplemental diabetic, moderate exercise + complementary diabetic. Methods: In this experimental study, 35 male Wistar rats were randomly divided into seven groups: healthy control, diabetic (D), complementary (alpha lipoic acid) diabetic (ALA), diabetic high intensity training (HIT), diabetic moderate intensity training (MIT), diabetes HIT+ALA (ALA + HIT), diabetic MIT + ALA (ALA + MIT). Rats were diabetic by intra-peritoneal injection of STZ. The HIT and MIT protocols were performed five days a week for six weeks. HIIT included 10 bouts of four minutes (running at 85–90% of maximum speed) and MIT 13 bouts of four minutes (running at 65–70% of maximum speed). ALA was administered orally 20 mg/kg once a day by gavage. Nav1.3 protein levels were measured by immunohistochemistry method. Statistical operations were performed with SPSS version 16 software. One-way analysis of variance and Tukey were used to analyze the data. Results: The level of Nav1.3 increased significantly in diabetic group compared to the control (p≤0.0001). Moreover, HIT (p=0.0015), MIT p=0.0056), ALA+HIT (p≤0.0001) and ALA+MIT (p≤0.0001) decreased significantly Nav1.3 compared to the diabetic group. Conclusion: HIT and MIT can reduce the expression of NaV1.3 in soleus muscle in diabetic rats. ALA combined with exercise training can be more effective to reduce diabetic neuropathy.

scholarly journals The Effect of Exercise Training and Portulaca Oleracea on Neurobehavioral Dysfunction in Type 2 Diabetic Rats

2021 ◽  
Author(s):  
Hesam Parsa ◽  
Tayebeh Shiravand ◽  
Kamal Ranjbar ◽  
Alireza Komaki
Keyword(s):  
Exercise Training ◽  
Diabetic Rats ◽  
Portulaca Oleracea ◽  
Diabetic Group ◽  
Male Rats ◽  
Control Group ◽  
Swimming Training ◽  
Plus Maze ◽  
Male Wistar Rats ◽  
Healthy Control

Abstract Background: Diabetes mellitus is one of the most important causes of Alzheimer’s disease and dementia. Portulaca oleracea (P.oleracea) is a rich source of antioxidants, which reduces inflammation and oxidative stress in diabetic rats. Exercise training has also been shown to improve mental function and enhance learning and memory efficacy. Therefore, this study was designed to explore the potential combined effect of P. oleracea and exercise training on neurobehavioral dysfunction in streptozotocin (STZ)-induced diabetic male rats. Methods: For this purpose, 50 male Wistar rats were divided into five groups: 1) healthy control group (Con), 2) sedentary diabetic group (D), 3) diabetic rats treated with P. oleracea(D+Po), 4) diabetic rats treated with exercise training (D+Ex), and 5) diabetic rats treated with P.oleracea and exercise training (D+Po+Ex) simultaneously. Animals in the exercise groups were subjected to progressive swimming training for 12weeks. P.oleracea was mixed with standard pellet food for 12weeks. Neurobehavioral dysfunction was investigated by elevated plus-maze, shuttle box, open field, and novel object recognition tests.Results: Compared with the normal control group, rats in the sedentary diabetic group showed a more passive avoidance memory deficit and more anxiety, and less exploration. Due to exercise training and treatment with P. oleracea, the neurobehavioral deficit in the trained diabetic rats receiving P. oleracea reached the normal levels of those in the healthy group.Conclusion: These data demonstrated that diabetes causes significant neurobehavioral deficit. Nevertheless, swimming training and P. oleracea synergistically ameliorate and reverse the neurobehavioral deficit in STZ-induced diabetic male rats.

scholarly journals Effect of Diabetes Induction and Exercisetraining on the Level of Ascorbic Acid and Muscle SVCT2 in Male Wistar Rats

2020 ◽  
Author(s):  
Akbar Ghalavand ◽  
Pezhman Motamedi ◽  
Hamid Rajabi ◽  
Neda Khaledi
Keyword(s):  
Ascorbic Acid ◽  
Exercise Training ◽  
Soleus Muscle ◽  
Wistar Rats ◽  
Training Session ◽  
Exercise Program ◽  
Significant Difference ◽  
Male Wistar Rats ◽  
Healthy Control ◽  
Diabetes Induction

Introduction: Sodium-dependent vitamin C transporter 2 (SVCT2) plays an important role in the transfer of ascorbic acid to slow-twitch fiber. The purpose of this study was investigating the effect of diabetes induction and exercise training on the level of ascorbic acid and muscle SVCT2 in rats. Methods: In this experimental study, 20 male Wistar rats were randomly divided into four groups (n=5 per group): 1) healthy control 2) diabetic control, 3) diabetic exercise, 4) sham. Diabetic was induced by injection of Streptozotocin solution (55 mg / kg). The exercise program was performed 6 weeks of aerobic running on Treadmill, 5 sessions per week and each training session for 20-40 minutes at an intensity of 50-70 VO2max. Homogeneous tissue of soleus muscle and serum was analyzed to evaluate the effect of exercise training on ascorbic acid metabolism. Data were analyzed by SPSS version 18 software and one-wayANOVA test (P ≤ 0.05). Results: The results showed that there was significant differences (P < 0.05) between the level muscle and serum ascorbic acid in diabetic and diabetic + exercise groups compare to the healthy control and sham groups. But no significant differences was found in SVCT2 of Soleus muscle between groups (P> 0.05).. Conclusion: Induction of diabetes induces a decrease in muscle levels of ascorbic acid, which appears to be associated with a decrease in serum ascorbic acid levels, since no significant difference was found in SVCT2 levels. Also, exercise training had no significant effect on serum and muscle ascorbic acid levels of muscle SVCT2 levels.

scholarly journals Simultaneous Effect of Resistance Training and Alpha Lipoic Acid on Beclin-1 Expression and Malondialdehyde Level of Fatty Liver Diabetic Male Rats

2021 ◽  
Vol In Press (In Press) ◽  
Author(s):  
Fatemeh Jafary Nia ◽  
Bahareh Yazdanparast Chaharmahali ◽  
Farah Nameni
Keyword(s):  
Fatty Liver ◽  
Strength Training ◽  
Training Program ◽  
Lipoic Acid ◽  
Diabetic Control ◽  
Diabetic Rats ◽  
Laboratory Method ◽  
Male Rats ◽  
Alpha Lipoic Acid ◽  
Male Wistar Rats

Background: Autophagy is a genetically and evolutionarily conserved programmed process that destroys long-lived cellular proteins and organelles. Objectives: The aim of this study was to evaluate the effect of eight weeks of strength training with alpha-lipoic acid supplementation on Becline-1 and malondialdehyde concentrations in elderly diabetic rats. Methods: In this experimental study, 35 old male Wistar rats were randomly divided into five groups (healthy control, diabetic, diabetic + strength training, diabetic + supplement, diabetic + strength training + supplement). At first, the rats became diabetic and had fatty liver. Then strength training program was performed in eight weeks. Alpha-lipoic acid supplement was also injected three days a week. At the end of the training period, tissues were removed, and the expression of Becline-1 was measured by RT-PCR, and malondialdehyde concentration was measured by TBA laboratory method. For data analysis, a one-way analysis variance test was used for between-groups comparison (P < 0.05). Results: The results showed that strength training program and in combination with alpha-lipoic acid (ALA) supplementation significantly reduced Becline-1 (P = 0.001) and malondialdehyde compared to the healthy and diabetic control groups (P = 0.000). Conclusions: Strength exercise combined with ALA supplementation has a significant role in reducing the rate of autophagy and can reduce fatty liver in elderly type 2 diabetic rats.

Long-Term Alpha-Lipoic Acid (ALA) Antioxidant Therapy Reduces Damage in the Cardiovascular System of Streptozotocin-Induced Diabetic Rats

2021 ◽  
pp. 1-15
Author(s):  
Cristiane Simões Coelho Britto Ramos ◽  
Vivian Alves Pereira da Silva ◽  
Lanna Beatriz Neves Silva Corrêa ◽  
Renato de Souza Abboud ◽  
Gilson Teles Boaventura ◽  
...  
Keyword(s):  
Cardiovascular System ◽  
Lipoic Acid ◽  
Diabetic Rats ◽  
Antioxidant Therapy ◽  
Alpha Lipoic Acid

scholarly journals Physical activity as a non-pharmacological and useful strategy in controlling of the apoptotic symptoms in diabetic model rats

2021 ◽  
Vol 16 (8) ◽  
pp. 602-606
Author(s):  
M. Bostani ◽  
S.A. Noaein
Keyword(s):  
Aerobic Exercise ◽  
Pancreatic Beta Cells ◽  
Diabetic Control ◽  
Pancreatic Tissue ◽  
Diabetic Rats ◽  
Aerobic Exercise Training ◽  
Bax Protein ◽  
Male Wistar Rats ◽  
Healthy Control ◽  
Induced Apoptosis

Background. In recent years, diabetes has become a global health problem. Apoptosis of pancreatic beta cells plays an important role in the pathogenesis of type 1 diabetes. Exercise as a non-pharmacological strategy to reduce the diabetic-induced complications has always been of interest to researchers. Therefore, the purpose of this study was to investigate the effect of aerobic exercise on levels of Bax, Bcl-2 and Bax/Bcl-2 ratio in pan­creatic tissue of streptozotocin (STZ)-induced diabetic rats. Materials and methods. A total number of 40 male Wistar rats (10 weeks old, 200–250 gr weight) were randomly divided into healthy control (HC), healthy trained (HT), diabetic control (DC), and diabetic trained (DT) groups. Diabetes was also induced by a single intraperitoneally injection of streptozocin (45 mg/kg). The training groups performed the exercise on the treadmill for five consecutive days within six weeks. The pancreatic tissue levels of the Bax and the Bcl-2 proteins were further determined via ELISA method. Results. The results showed that the induction of diabetes had significantly decreased the levels of Bcl-2 protein and increased the levels of Bax protein and Bax/Bcl-2 ratio in the pancreatic tissue (p < 0.05). As well, the findings showed that six weeks of aerobic exercise training had significantly increased the levels of Bcl-2 and significantly decreased the levels of Bax protein in DT group. Also, the Bax/Bcl-2 ratio reduced significantly in DT group (p < 0.05). The increase in displacement and transmission of apoptosis inducing factor (AIF) that have seen in oxidative stress status, is reduced in the tissues of trained individuals which indica­ting of the inhibition in the apoptotic signaling. Conclusions. According to the results of this study, exercise can be considered as an effective strategy to reduce the rate of diabetic-induced apoptosis and control its complications.

scholarly journals Effect of alpha-lipoic acid on antioxidant gene expression and kidney injury in alloxan-induced diabetic rats

2018 ◽  
Vol 8 (1) ◽  
pp. 6-6 ◽  
Author(s):  
Parisa Jamor ◽  
Hassan Ahmadvand ◽  
Hesam Ashoory ◽  
Esmaeel Babaeenezhad
Keyword(s):  
Gene Expression ◽  
Lipoic Acid ◽  
Kidney Injury ◽  
Diabetic Rats ◽  
Pcr Analysis ◽  
Control Group ◽  
Diabetic Patients ◽  
Alpha Lipoic Acid ◽  
The Impact ◽  
Gpx Activity

Background: Myeloperoxidase (MPO) is involved in the initiation, progression, and complications of atherosclerosis in diabetic patients. Objectives: In the current study, the impact of alpha-lipoic acid (LA), a natural antioxidant and a cofactor in the enzyme complexes on MPO, catalase (CAT) and glutathione peroxidase (GPx) activity, glutathione (GSH) and malondialdehyde (MDA) level, histopathology of kidney and expression of antioxidant enzymes, superoxide dismutase (SOD), GPx and CAT which are involved in the detoxification of reactive oxygen species (ROS), was evaluated in alloxan-induced diabetic rats. Materials and Methods: In this study, 30 male Rattus norvegicus rats randomly divided into three groups; control (C), non-treated diabetic (NTD), and LA-treated diabetics (LATD) was induced by alloxan monohydrate (100mg/kg; subcutaneous [SC]). Then treatment was performed with alphaLA (100 mg/kg intraperitoneal (i.p) daily to 6 weeks). Blood sample of animals collected to measure levels of MPO, CAT and GPx activity GSH and MDA. Kidney paraffin sections were prepared to estimate histological studies and to measure quantitative gene expression SOD, GPX and CAT in kidney. Results: Induction of diabetes led to a significant increase in MPO and MDA, reduced GSH level and GPx and CAT activities (P < 0.05). However, treatment with alpha-LA led to a significant elevation in GPx, CAT and GSH levels with a reduction in MPO activities and MDA levels (P < 0.05). Furthermore, the real-time reverse transcriptase-polymerase chain reaction (RT-PCR) analysis results showed increased expressions of GPx, CAT and SOD enzyme in the treatment group compared with the diabetic control group. Histopathological lesions such as increased glomerular volume and lymphocyte infiltration were attenuated in the alpha-LA treated group. Conclusions: Our findings indicated that alpha-LA supplementation is effective in preventing complications induced by oxidative stress and atherosclerosis in diabetic rats.

The Effect of Alpha-Lipoic Acid on the Protection of Epidermal Nerve Fibers and Microcapillaries in the Streptozotocin-Induced Diabetic Rats

2007 ◽  
Vol 31 (6) ◽  
pp. 488
Author(s):  
Ming Han Piao ◽  
Heung Yong Jin ◽  
Sun Kyung Song ◽  
Seun Mi Kang ◽  
So Young Kim ◽  
...  
Keyword(s):  
Lipoic Acid ◽  
Diabetic Rats ◽  
Nerve Fibers ◽  
Alpha Lipoic Acid

scholarly journals Antioxidant Effect of Alpha-Lipoic Acid in 6-Hydroxydopamine Unilateral Intrastriatal Injected Rats

Antioxidants ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 122 ◽  
Author(s):  
Pavlina Andreeva-Gateva ◽  
Lubomir Traikov ◽  
Zafer Sabit ◽  
Dimitar Bakalov ◽  
Radka Tafradjiiska-Hadjiolova
Keyword(s):  
Lipoic Acid ◽  
Thiobarbituric Acid ◽  
Tbars Level ◽  
Alpha Lipoic Acid ◽  
Simultaneous Application ◽  
Evaluation Procedures ◽  
Male Wistar Rats ◽  
Cell Processes ◽  
6 Hydroxydopamine ◽  
Gpx Activity

The toxin 6-hydroxydopamine (6-OHDA) is a highly oxidizable dopamine (DA) analog that is widely used for reproducing several cell processes identified in Parkinson’s disease (PD). Due to the close similarity of its neurotoxic mechanism to those of DA, it is suitable as a model for testing the effects of potentially neuroprotective drugs. This study aimed to evaluate the effect of alpha-lipoic acid (LA) on brain oxidative stress (OS) in unilateral intrastriatal (6-OHDA) injected rats. Forty male Wistar rats, four months old (220–260 g), were evaluated. Half of them received LA (35 mg/kg i.p.) from the start to the end of the experiment. On day 2 of the trial, ten LA-supplemented rats and ten non-LA-supplemented rats were subjected to the apomorphine test. Brain homogenates were evaluated for thiobarbituric acid-reactive substances (TBARS) and glutathione peroxidase (GPx) activity. The same evaluation procedures were repeated on day 14 with the remaining animals. An increased TBARS level and decreased GPx activity, suggestive for OS, were recorded in homogenates on day 14 vs. day 2 of the experiment in the 6-OHDA treated rats. The simultaneous application of LA mitigated these changes. Our study demonstrates that the low dose of LA could be of value for decreasing the OS of the neurotoxic 6-OHDA, supporting the need for further studies of the benefit of LA treatment in PD.

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