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Official PDF TranslationChinese Journal of New Drugs

Pharmacological Modulation of the Nrf2/HO-1 Axis in a Rat Model of Myocardial Ischemia-Reperfusion Injury: A Dose-Response Study

Authors: ZHANG Wei; LI Ming; WANG Fang

DOI: pub_80__articleID_244Status: Verified Translated Edition
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Key Findings in This Report

• • Compound X at 20 mg/kg reduced myocardial infarct size by 58.2% (from 45.2% to 18.9%, p<0.05) in a rat I/R model, indicating potent cardioprotection. • • Nrf2 nuclear translocation increased 2.3-fold and HO-1 expression upregulated 3.1-fold at 20 mg/kg, correlating with reduced oxidative stress. • • MDA levels decreased from 8.2 to 5.1 nmol/mg protein (38% reduction) and SOD activity increased from 12.3 to 21.6 U/mg protein (75% increase) at 20 mg/kg, demonstrating robust antioxidant effects. • • Apoptotic index (TUNEL-positive cells) was reduced by 62% at 20 mg/kg, with a 45% decrease in Bax/Bcl-2 ratio, indicating significant anti-apoptotic activity.