Protective effect of neferine against isoproterenol-induced cardiac toxicity

Area of Science:

• Pharmacology
• Cardiovascular Research
• Natural Product Chemistry

Background:

• Myocardial infarction (MI) is a leading cause of death worldwide.
• Isoproterenol (ISO) is commonly used to induce experimental MI in animal models.
• Oxidative stress plays a critical role in the pathogenesis of MI.

Purpose of the Study:

• To investigate the cardioprotective effects of neferine against ISO-induced MI.
• To evaluate the antioxidant properties of neferine in a cardiac injury model.
• To determine if neferine can mitigate biochemical and histological damage caused by ISO.

Main Methods:

• Rats were pre-treated with neferine orally for 30 days, followed by subcutaneous ISO injection for 2 days.
• Histopathological examination of heart tissues was performed.
• Serum and heart tissue homogenates were analyzed for marker enzymes, glycoprotein components, lipid peroxidation, antioxidants, and lipid profiles.

Main Results:

• ISO-induced rats exhibited myocardial necrosis, elevated serum marker enzymes (creatine kinase, lactate dehydrogenase, aspartate transaminase), increased serum glycoproteins, and decreased heart tissue glycoproteins.
• Increased lipid peroxidation and reduced antioxidant levels (glutathione, superoxide dismutase, catalase, glutathione-S-transferase, glutathione peroxidase) were observed in ISO-treated rats.
• Neferine pre-treatment significantly reduced histological damage, decreased serum marker enzymes and glycoproteins, and restored antioxidant levels and lipid profiles towards normal.

Conclusions:

• Neferine demonstrates significant cardioprotective effects against ISO-induced myocardial infarction.
• Neferine exerts potent antioxidant properties, mitigating ISO-induced oxidative stress.
• Neferine holds potential as a therapeutic agent for preventing or treating myocardial infarction.