Carbon tetrachloride (CCl4) is a chlorinated hydrocarbon that, beyond its historical industrial use as a solvent, is widely employed in experimental research as a model hepatotoxicant for studying liver injury and protective interventions. Its toxicity arises through metabolic activation by hepatic cytochrome P450 e…
Carbon tetrachloride (CCl4) is a chlorinated hydrocarbon that, beyond its historical industrial use as a solvent, is widely employed in experimental research as a model hepatotoxicant for studying liver injury and protective interventions. Its toxicity arises through metabolic activation by hepatic cytochrome P450 enzymes, which convert CCl4 into the reactive trichloromethyl and trichloromethyl peroxyl radicals. These radicals initiate lipid peroxidation of membrane fatty acids, deplete antioxidant defences, and generate oxidative stress that damages hepatocyte membranes and organelles, producing characteristic centrilobular necrosis, steatosis, and disturbances in serum lipid and liver-enzyme profiles. Because this mechanism reproducibly mimics features of oxidative liver disease, CCl4-induced injury serves as a standard assay for evaluating hepatoprotective and antioxidant agents. Investigations in this area test plant-derived extracts, polysaccharides, and pharmacological compounds for their capacity to limit oxidative stress, preserve membrane integrity, and normalise lipid and histological parameters following exposure. Reported work examines the influence of botanical stem-bark extracts on lipid profiles and CCl4-driven hepatic changes, the antioxidant and hepatoprotective activity of tea polysaccharides, and the protective effect of receptor-targeted agents against CCl4 toxicity. Such studies clarify the radical-mediated basis of chemically induced liver damage and the mechanisms by which candidate compounds counteract it.
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