Publications by authors named "I Jayachandran"

Article Synopsis
  • The study investigates how metformin affects atherosclerosis in obese/diabetic rats by regulating the Sestrin2-AMPK-mTOR pathway, which is linked to heart health.
  • Obese and diabetic rats not treated with metformin showed low Sestrin2 and AMPK levels, high mTOR activity, and significant atherosclerotic damage, while metformin treatment improved these conditions.
  • The findings suggest metformin may help prevent atherosclerosis by restoring protein levels and reducing harmful changes in heart and blood vessel tissues.
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Purpose: We earlier reported that Sestrin2 regulates monocyte activation and atherogenic events through AMPK-mTOR nexus under high-glucose and dyslipidemic conditions. However, the statuses of Sestrins in diabetes and dyslipidemia are not known. We report here on the status of Sestrins and their association with diabetic dyslipidemia and atherosclerosis.

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We previously reported that the circulatory level of Asymmetric dimethylarginine (ADMA), an endogenous competitive inhibitor of nitric oxide synthase, was increased in diabetic kidney disease patients. However, the mechanism and the role of ADMA in diabetic kidney injury remain unclear. Hence, our principal aim is to investigate the causal role of ADMA in the progression of renal cell fibrosis under high glucose (HG) treatment and to delineate its signaling alterations in kidney cell injury.

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The vicious cycle between hyperinsulinemia and insulin resistance results in the progression of atherosclerosis in the vessel wall. The complex interaction between hyperglycemia and lipoprotein abnormalities promotes the development of atherogenesis. In the early phase of atherosclerosis, macrophage-derived foam cells play an important role in vascular remodeling.

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Aim: Asymmetric dimethylarginine (ADMA) is involved in the regulation of nitric oxide synthesis and in the maintenance of vascular tone and structure. But the role and status of ADMA in diabetes induced kidney injury is not clear. Hence this study is investigating the role of ADMA in the progression of kidney injury and its circulatory status in Asian Indians with and without diabetic nephropathy.

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