Home General Physiology and Biophysics 2017 General Physiology and Biophysics Vol.36, No.1, p.65–74, 2017

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Quarterly, 80 pp. per issue
Founded: 1982
ISSN  1338-4325 (online)

Published in English

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General Physiology and Biophysics Vol.36, No.1, p.65–74, 2017

Title: Sinomenine prevents the development of cardiomyopathy in diabetic rats by inhibiting inflammatory responses and blocking activation of NF-κB
Author: Cheng Jiang, Yun-Long Tong, Dan Zhang, Li-Zhi Liu, Ju-Fei Wang

Abstract: Diabetic cardiomyopathy is a severe complication of diabetes mellitus (DM). The goal of current work was to study the effects of sinomenine on streptozotocin-induced cardiomyopathy in rats. DM in rats was induced by intraperitoneal injection of streptozotocin. Cardiac function was evaluated by measuring left ventricle end-diastolic diameter, left ventricle end-systolic diameter and ejection fraction. Cardiac inflammation was evaluated by the degree of infiltration of T lymphocytes and the levels of pro-inflammatory cytokines. Sinomenine attenuated diabetic symptoms without affecting plasma glucose. Cardiac dysfunction in the sinomenine-treated diabetic rats was significantly improved, as reflected by decreased levels of left ventricle end-diastolic diameter, left ventricle end systolic diameter and an increased level of ejection fraction. Sinomenine observably reduced cardiomyocyte hypertrophy in DM rats. Moreover, sinomenine reduced infiltration of CD3+ and CD68+ positive cells and decreased the levels of tumor necrosis factor-α, interlukin-1 and interlukin-6. Finally, sinomenine-treated rats showed a reduced expression of NF-κB and an increased expression of IκB in the myocardium compared with the myocardium of untreated diabetic rats. Our results indicate sinomenine significantly improves cardiac function in diabetic rats, which may be attributed to the deactivation of NF-κB and the blockade of inflammatory cytokine-mediated immune reactions.

Keywords: Sinomenine — Diabetic cardiomyopathy — CD3+ — CD68+ — NF-κB
Published online: 28-Dec-2016
Year: 2017, Volume: 36, Issue: 1 Page From: 65, Page To: 74

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