Protective effect of melatonin on lipid peroxidation in various tissues of diabetic rats subjected to an acute swimming exercise

2012 ◽  
Vol 113 (12) ◽  
pp. 698-701 ◽  
Author(s):  
M. Bicer ◽  
M. Akil ◽  
A. K. Baltaci ◽  
R. Mogulkoc ◽  
A. Sivrikaya ◽  
...  
2017 ◽  
Vol 8 (4) ◽  
Author(s):  
Ambily Scaria ◽  
Jagadhish V Kamath ◽  
Manodeep Chakraborty

Objective: The present study aimed to evaluate in vivo the antihyperglycemic, anti oxidant,antihyperlipidemic and nephroprotective effects of Stevioside against Alloxan induced diabetic nephropathy in rats. Materials and Methods: In this model diabetes was induced using Alloxan (125 mg/kg, i.p) and the prophylactic treatment was started 48 hours after Alloxan injection for 28 days. The protective effect of the treatment with standard (Glibenclamide 0.5mg/kg, p.o) and Stevioside (250 mg/kg. p.o) were analyzed by estimating the serum levels of glucose, urea, creatinine, albumin, total protein, total cholesterol (TCH), triglycerides (TG), high density lipoproteins (HDL) and antioxidants like SOD, catalase and lipid peroxidation. Key Findings: This study demonstrates that Stevioside improved hyperglycemia and maintained antioxidant status and reduced total cholesterol, TG, urea, creatinine and albumin and lipid peroxidation levels when compared to toxic control. The protective effect of Stevioside against Alloxan induced diabetic nephropathy in rats was also supported by histopathologic findings.The results of the present study are encouraging for its potential use to delay the onset and progression of diabetic renal complications. However, the translation of therapeutic efficacy in humans requires further studies.


Author(s):  
Mursel Bicer ◽  
Saltuk Bugra Baltaci ◽  
Suleyman Patlar ◽  
Rasim Mogulkoc ◽  
Abdulkerim Kasim Baltaci

AbstractAimThe present study aimed to examine the effects of melatonin supplementation on lipid peroxidation in the bone tissue of diabetic rats subjected to acute swimming exercise.MethodsThe study was conducted on 80 Sprague-Dawley type adult male rats which were equally allocated to eight groups: group 1, general control; group 2, melatonin-supplemented control; group 3, melatonin-supplemented diabetic control; group 4, swimming control; group 5, melatonin-supplemented swimming; group 6, melatonin-supplemented diabetic swimming; group 7, diabetic swimming; group 8, diabetic control. In order to induce diabetes, the animals were subcutaneously injected with 40 mg/kg streptozotocin (STZ). The animals were supplemented with 3 mg/kg/day melatonin intraperitoneally (IP) for 4 weeks. At the end of the study, the animals were decapitated to collect bone tissue samples which were examined to find out the malondialdehyde (MDA) (nmol/g/protein) and glutathione (GSH) (mg/dL/g protein) levels.ResultsThe highest MDA values in the bone tissue were found in groups 7 and 8. MDA levels in the bone tissue in groups 3 and 6 were lower than the levels in groups 7 and 8, but higher than those in all other groups. Groups 3, 5 and 6 had the highest bone tissue GSH values. On the other hand, the lowest GSH level was established in groups 7 and 8.ConclusionThe results of the present study indicated that the cell damage caused by acute swimming exercise and diabetes in the bone tissue could be prevented by melatonin supplementation.


2019 ◽  
Vol 19 (5) ◽  
pp. 665-675 ◽  
Author(s):  
Wenjiao Shi ◽  
Zhixin Guo ◽  
Ruixia Yuan

Background and Objective: This study investigated whether rapamycin has a protective effect on the testis of diabetic rats by regulating autophagy, endoplasmic reticulum stress, and oxidative stress. Methods: Thirty male Sprague-Dawley rats were randomly divided into three groups: control, diabetic, and diabetic treated with rapamycin, which received gavage of rapamycin (2mg.kg-1.d-1) after induction of diabetes. Diabetic rats were induced by intraperitoneal injection of streptozotocin (STZ, 65mg.Kg-1). All rats were sacrificed at the termination after 8 weeks of rapamycin treatment. The testicular pathological changes were determined by hematoxylin and eosin staining. The protein or mRNA expression of autophagy-related proteins (Beclin1, microtubule-associated protein light chain 3 (LC3), p62), ER stress marked proteins (CCAAT/enhancer-binding protein (C/EBP) homologous protein (CHOP), caspase-12), oxidative stress-related proteins (p22phox, nuclear factor erythroid2-related factor 2 (Nrf2)) and apoptosis-related proteins (Bax, B cell lymphoma-2 (Bcl-2)) were assayed by western blot or real-time fluorescence quantitative PCR. Results: There were significant pathological changes in the testes of diabetic rats. The expression of Beclin1, LC3, Nrf2, Bcl-2 were significantly decreased and p62, CHOP, caspase12, p22phox, and Bax were notably increased in the testis of diabetic rats (P <0.05). However, rapamycin treatment for 8 weeks significantly reversed the above changes in the testis of diabetic rats (P <0.05). Conclusion: Rapamycin appears to produce a protective effect on the testes of diabetic rats by inducing the expression of autophagy and inhibiting the expression of ER-stress, oxidative stress, and apoptosis.


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