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  • Author or Editor: Roya Naderi x
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Introduction

Elevated oxidative stress in type 2 diabetes mellitus (T2DM) has been proposed as one of the major risk factors in pathophysiology of several organ damages including liver tissue.

Materials and methods

In this study, we evaluated the effect of swimming training on hepatic oxidative markers, SIRT1 gene expression, and histological alterations in T2DM. Twenty-eight male Wistar rats were randomly assigned into four groups (N = 7): control, exercise, diabetic, and diabetic + exercise. One week after the induction of T2DM, rats were subjected to swimming (60 min/5 days a week) for 12 weeks. At the end of the experiment, oxidative markers (SOD, GPx, CAT activities, and MDA level) and SIRT1 gene expression were measured in the liver by special kits and RT-PCR, respectively. Hematoxylin–eosin statins were used for histological alterations.

Results

Swimming training attenuated MDA levels and enhanced SOD, GPx, and CAT activities in the liver of diabetic animals. Furthermore, swimming training restored the expression of SIRT1 in T2DM. Histopathological finding of the hepatic tissue confirmed a protective role for swimming training in diabetic rats.

Conclusion

Our findings indicate that swimming training attenuates oxidative stress probably by upregulation of SIRT1 in the liver of type 2 diabetic rats.

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