Hypolipidemic and hepatoprotective effects of corn silk extract in nicotine-administered male mice.

Aim: This study is done to investigate the hypolipidemic and hepatoprotective effects of corn silk extract in nicotine-administered male mice.

Background: Nicotine can induce pathophysiological effects in the liver tissue through oxidative stress and damage cells. Corn silk can improve liver function with its antioxidant effects.

Methods: In this experimental study, 30 male NMRI mice (25-30 gr) were divided into 5 groups: controls, sham, nicotine 2.5 mg/kg, nicotine+aqueous extract of corn silk 400 mg/kg, and nicotine+methanolic extract of corn silk 400 mg/kg for 1 month. One day after the last nicotine and extracts consumption, the serum samples were performed for biochemical measurement, and the supernatant of the homogenized liver was administered for antioxidant variables assessment.

Results: There was no significant difference in the body weight of different groups. Liver weight and GSH decreased in the nicotine group compared to the control group (P<0.05). Triglycerides, total cholesterol, HDL-C, LDL-C, liver enzymes, and MDA increased in the nicotine group compared to the control group (P<0.05). Also, the expansion of sinusoids, the presence of inflammatory cells, and necrosis of liver cells were observed in the nicotine group compared to the control group. Using aqueous and methanolic extracts of corn silk in mice receiving nicotine led to the improvement of the mentioned variables (P<0.05).

Conclusion: The results of this study showed that the use of nicotine can lead to the induction of hepatotoxicity. The use of aqueous and methanolic extracts of corn silk improved them through its antioxidant activity.