Showing 6 results for Diabetic Neuropathy
Amirbahador Dakhili, Reza Gharakhanlou, Mansoureh Movaheddin, Ali Khazani, Mohammad Keshavarz,
Volume 13, Issue 3 (3-2014)
Abstract
Background: Diabetic neuropathy is one of the most common complications of diabetes
mellitus, which is associated with a decrease in the synthesis and transport of neurotrophins .
The aim of present study was to investigate the effect of endurance training on gene expression of
nerve growth factor (NGF) in the sensory spinal cord of rats with diabetic neuropathy.
Methods: Twenty eight adult male Wistar rats in the body mass range of 326.3±8.4 gr, randomly
assigned in to four groups: diabetic control, diabetic training, healthy control and healthy training. For
inducing diabetic neuropathy, after twelve hours of food deprivation, intraperitoneal injection of STZ
solution (45 mg/Kg) method was used. Two weeks after STZ injection, the endurance training
protocol was performed for six weeks and Twenty four hours after the last training session, rats were
sacrificed. Gene expression of NGF in rat spinal sensory segments were measured with Real time
technique. In order to determine the significant differences between groups and Interaction
independent variables two way anova and LSD post hoc test were used.
Results: Endurance training, resulted in a significant increase in gene expression of NGF in the rats.
Also, in compare with diabetic control, training led to significant decrease in blood glucose levels in
diabetic training group.
Conclusion: Increased physical activity and exercise can strongly affect pathological factors
associated with diabetic neuropathy by increasing nerve growth factor. It is recommended that for
prevention of neurological complications and treatment of diseases associated with diabets exercise
training could be used as a non-pharmachological treatment.
Mohammad Keshavarz, Reza Gharakhankou, Mansoureh Movaheddin, Leila Baghersad, Amir Dakhili, Ali Khazani,
Volume 13, Issue 4 (5-2014)
Abstract
Background: Increased and decreased CDK5 gene expression regulation, as a protein kinase, is associated with launching death or survival pathways in the nervous system. According to the chronic effects of endurance training on growth Germination, Neuronal function and improvement of pathological conditions of neurodegenerative diseases, the aim of our study was to investigate the effect of 6 Weeks Endurance Training on Gene Expression of Cdk5 in spinal motor part of Male Wistar Rats with Diabetic Neuropathy.
Methods: Twenty eight adult male Wistar rats ten year old in the weight range of 326.3±84gr, were randomly divided into four groups including healthy control (C), healthy training (HT), neuropathic control (N) and neuropathic training (NT). Diabetes was induced with one shut injection of STZ(45mg/Kg) and after confirmation of neuropathic condition with behavior tests, training groups performed 6 weeks endurance training(with moderate intensity and increasing) on the treadmill. CDK5 gene expression in Spinal motor segments forming the sciatic nerve was measured with Real time technique and calculated using the 2-ΔΔCT method.
Results: After 6 weeks of endurance training, CDK5 gene expression in spinal motor part of (NT) group was significantly lower than the (NC) group, also, in comparison with neuropathy control, training led to significant decrease in blood glucose levels in neuropathic training group.
Conclusion: According to the specific role of CDK5 in neuronal growth or death, our study showed the beneficial effects of Chronic endurance exercise on neural networks leading to reduced gene expression of CDK5 in a pathologic condition.
Shirin Salek, Farid Bahrpeyma, Mohammad-Rezai Mohajeri-Tehran, Soghrat Faghihzadeh,
Volume 14, Issue 1 (1-2015)
Abstract
Background: Balance dysfunction is one of the problems in diabetic patients so that peripheral neuropathy and decreased somatosensory sensitivity are the most important causes for it. One of the supposed theories for diabetic peripheral neuropathy is reduction in blood flow secondary to pathologies of peripheral neural arterioles. Intermittent Pneumatic Compression, regarding to its effect on vessels hemodynamics and perfusion improvements, has been considered in recent years. The aim of this study is to evaluate the effects of this method on improvement of neuropathy signs and symptoms improvement in patients with type 2 Diabetes and neuropathy. Also, regarding to the role of neuropathy on balance impairment, other aim of this study is to investigate the effect of this method on improvement of dynamic balance in diabetic patients.
Methods: This study is a clinical trial study. 39 patients with diabetes type 2 and neuropathy divided into intervention (20 patients) and control (19 patients) groups. The intervention group underwent 10 sessions of IPC treatment, with 45 minutes for each session and one day interval between them. Neuropathy severity changes (by Valk and Michigan Questionnaires), Proprioceptive sensation (assessed by Diapason), and balance (by Biodex system), were evaluated in both groups in first and final sessions.
Results: Anterior-Posterior Stability Index and Overall Stability Index obtained from Biodex system in level 6 showed significant changes. Vibration sensation, and Valk and Michigan neuropathy questionnaires also showed significant improvements (P<0.05).
Conclusion: This study showed that IPC treatment method has positive effects on improvement of neuropathy severity, Vibration sensation and dynamic stability (Biodex).
Azam Karami Paskohani, Masoud Rahmati , Abdolreza Kazemi ,
Volume 14, Issue 3 (3-2015)
Abstract
Background: Diabetic neuropathy leads to skeletal muscle atrophy however atrophy signaling mechanisms are not well documented. The aim of the present study was to investigate Sunday Driver (Syd) gene expression in soleus muscle of Wistar male rats with diabetic neuropathy. Methods: Twelve male Wistar rats were randomly assigned in 3 groups: diabetic trained, diabetic untrained and healthy control. Two weeks after STZ injection (45 mg/Kg), diabetic neuropathy was demonstrated with mechanical allodynia and thermal hyperalgesia tests and after which moderate endurance training protocol was performed for 6 weeks. 48 hours after final training session, the rats were dissected and soleus muscle tissues were removed. Also Sydgene expression was measured with Real time- PCR methods. Results: Soleus muscle weight was decreased in diabetic groups (P=0.001), but compared with diabetic untrained group, was higher in diabetic trained group (P=0.001). Sydgene expression in diabetic untrained group was higher than healthy control group (P=0.001). Also, compared with diabetic untrained group, training significantly decreased Sydgene expression and blood glucose levels in diabetic trained group. (P=0.001 and P=0.0001, respectively). Conclusion: In soleus muscle of diabetic rats, Sydm RNAup-regulation is involved in development of muscle atrophy and training as a non-pharmacotherapy strategy can modulate and get it close to normal levels. So, it is suggested that Syd should be noted as a novel treatment in diabetes disease.
Faranak Sadeghipour, Reza Gharakhanlou, Mansoureh Movahedin, Masoud Rahmati,
Volume 15, Issue 1 (1-2016)
Abstract
Background: Glycogen synthase kinase 3 beta is a key regulator of many signaling pathways. It is reported that Inhibition of this kinase results neuronal survival. Accordingly in this study we investigated the effect of endurance training on the gene expression of GSK-3β in the sensory areas of the spinal cord of male Wistar rats with diabetic neuropathy.
Methods: we randomly assigned 16 male Wistar rats into four groups: healthy control, healthy trained, neuropathy control, neuropathy trained. Intraperitoneal injection of a STZ (streptozotocin) solution (45 mg/kg) was used to induce diabetes. At two weeks after STZ injections, the mechanical allodynia and thermal hyperalgesia tests demonstrated the presence of diabetic neuropathy. A moderate endurance training protocol was performed for a six- week period. At 24 hours after the final training session, the rats were sacrificed and the L4-L6 sensory neurons of the spinal cord tissue were removed. GSK-3β mRNA expression was performed using real time-PCR.
Results: Statistical analysis shows that neuropathy trained experiences a decrease in gene expression in comparison to neuropathy control (P=0.02). On the other there was significant difference between healthy control and neuropathy control (P=0.02). However, there was no significant difference between healthy control and neuropathy trained.
Conclusion: we claim that endurance training will effectively decrease the expression of GSK-3β in the sensory areas of spinal cord of male Wistar rats with diabetic neuropathy. Endurance training as a non- pharmacotherapy strategy can modulate and return GSK-3β to approximate normal levels.
Maedeh Emamjomeh, Majid Hassanpourezatti, Atefeh Hosseinali,
Volume 22, Issue 6 (3-2023)
Abstract
Background: In this study, the effect of oral administration of recombinant human interleukin-2 (rhIL-2) on brain NO level and AChE activity in hyperglycemic conditions induced by high-sucrose diet (HSD), as a type-2 diabetes model, was investigated in Drosophila melanogaster.
Methods: In this experimental research, adult fruit flies of both sexes (30 in each group) were divided into the six groups: receiving normal diet (ND); high-sucrose diet (HSD); ND with rhIL-2 at 0.01 and 0.1 ng/ml; and HSD with rhIL-2 at 0.01 and 0.1 ng/ml. Flies were bred on these culture media for three weeks. At the end of the experiments, the brains of the flies were extracted, homogenized, and glucose, NO, and AChE activity levels were measured by the kit.
Results: Glucose level, AChE activity and NO level increased in brain homogenate of HFD flies compared to ND group. The body weight of HSD flies was reduced compared to the ND. Administration of rhIL-2 along with HFD significantly prevented these changes.
Conclusion: These findings suggest that rhIL-2 partially prevents diabetic neuropathy in Drosophila. It seems that the preventive effects of this compound are mediated through mechanisms dependent on nitric oxide and acetylcholinesterase in the brain.
