Pharmacological evaluation of the protective effect of hydroalcoholic extract of walnut (Juglans regia L.) leaf on 6-mercaptopurine-induced hepatotoxicity in rats

Chemical hepatotoxicity can cause liver illnesses like hepatitis and cirrhosis. Mercaptopurine, an anti-tumor medication, has potential myelotoxicity. Natural plants contain hepatoprotective phytoconstituents. The study aimed to explore the protective effect of J. Reia hydroalcoholic leaf extract against MTP-induced liver injury in rats. Seven groups of rats were randomly selected: Control received only distilled water and food; MP at 40 mg kg -1 b.w; Silymarin at 50 mg kg -1 b.w; Juglans Leaf extract 400 mg kg -1 b.w; Juglans Leaf extract 400 mg kg -1 and 6-MP 40 mg kg -1 ; Silymarin 50 mg kg -1 and 6-MP 40 mg kg -1 ; Juglans Leaf extract (200 mg kg -1 ); silymarin 25 mg kg -1 , and 6-MP 40 mg kg -1 . Blood samples were collected on days: zero, 10 and 21 days. Liver injury was assessed by serum biochemical parameters (SGOT, SGPT, ALP), bilirubin, albumin and total protein in addition to histopathology changes. Administration of J. Reia leaf extract significantly lowered SGOT, SGPT, ALP levels and bilirubin in MTP-treated rats. Histopathological evaluation of livers showed that J. Regia leaves extract reduced cell swelling, fatty degeneration, and inflammation in MTP-treated rats. These findings indicate that J. Regia extract has a protective impact on Oxidative injury in rat liver caused by MTP. Moreover, extract is an effective antioxidant and hepatoprotective agent for reducing hepatocellular damage.