He and his co-researchers exposed rats to a mixture of organophos- phate insecticides for 28 days. This induced liver toxicity via elevated levels of serum aspartate aminotransferase, Alanine aminotransferase, alkaline phosphatase and dis- ruption of liver structure. Vitamin C supplementation was reported to attenuate the hepatotoxic effects induced by the mixture of organophosphate insecticides.