Toxicological Impact of Heavy Metals on Liver Function and A Comprehensive Analysis of Pharmacological Approaches toward Hepatoprotection through Herbal and Synthetic Agents

Abstract

Heavy metal exposure has become a serious public health issue due to its toxic effects on vital organs, particularly the liver. The liver plays a central role in detoxification and metabolism, making it highly vulnerable to toxic insults from heavy metals like lead, cadmium, mercury, and arsenic. This paper discusses the toxicodynamics of these metals, their mechanisms of liver injury, and histopathological effects. It further explores pharmacological interventions for liver protection, focusing on herbal antioxidants and synthetic drugs that counteract oxidative stress and cellular damage. Emphasis is placed on the roles of silymarin, curcumas, N-acetylcysteine (NAC), and other agents in restoring hepatic function and protecting hepatocytes. The study highlights recent developments in pharmacological hepatoprotection and proposes strategies for mitigating heavy metal toxicity through integrative approaches.

Keywords: Heavy metal toxicity, Hepatotoxicity, Oxidative stress, Pharmacological intervention, Hepatoprotective agents