4.4 Article

Polyherbal Formulation Ameliorates Diabetic Cardiomyopathy Through Attenuation of Cardiac Inflammation and Oxidative Stress Via NF-?B/Nrf-2/HO-1 Pathway in Diabetic Rats

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JOURNAL OF CARDIOVASCULAR PHARMACOLOGY
卷 79, 期 1, 页码 E75-E86

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LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/FJC.0000000000001167

关键词

diabetic cardiomyopathy; inflammation; NF-& kappa;B/Nrf-2/HO-1 pathway; oxidative stress; polyherbal formulation

资金

  1. Indian Council of Medical Research (ICMR), Government of India

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The study demonstrates that the polyherbal formulation successfully alleviates inflammation and oxidative stress in DCM rats by regulating the NF-κB/Nrf-2/HO-1 pathway and protecting against cardiac damage. Therefore, PHF may be a prospective therapeutic agent for DCM.
The present study was intended to evaluate the effect of polyherbal formulation (PHF) made with 3 nutraceuticals, such as Piper nigrum, Terminalia paniculata, and Bauhinia purpurea on inflammation and oxidative stress in diabetic cardiomyopathy (DCM), which is induced by streptozotocin and nicotinamide administration in rats. We supplemented DCM rats with PHF (250 and 500 mg/kg/BW) for 45 days and evaluated their effects on oxidative stress markers, proinflammatory cytokines, and messenger RNA expressions of the nuclear factor erythroid 2-related factor-2 (Nrf-2) and its linked genes [heme oxygenase-1 (HO-1), superoxide dismutase, catalase] along with inflammatory genes [tumour necrosis factor a and nuclear factor kappa B (NF-?B)]. Our study demonstrated that PHF successfully attenuated inflammation and oxidative stress via messenger RNA upregulation of Nrf-2, HO-1, superoxide dismutase, and catalase and concomitantly with downregulation of tumour necrosis factor a and NF-?B. Conversely, PHF also protected hyperglycemia-mediated cardiac damage, which was confirmed with histopathological and scanning electron microscopy analysis. In conclusion, our results suggested that PHF successfully ameliorated hyperglycemia-mediated inflammation and oxidative stress via regulation of NF-?B/Nrf-2/HO-1 pathway. Therefore, these results recommend that PHF may be a prospective therapeutic agent for DCM.

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