Effects of vitamin C on antioxidant function of testis in  cadmium-loaded mice

doi:10.12047/j.cjap.6258.2022.043

Abstract

Abstract: Objective: To investigate the effects of cadmium (Cd) on antioxidant enzymes in testis of mice and the protective effect of vitamin C (VC). Methods: A total of 72 male Kunming mice of clean grade were divided into four groups (n=18): the control group, the Cd group (CdCl₂3 mg/kg), the VC group (200 mg/kg), and the VC (200 mg/kg) +Cd group (CdCl₂3 mg/kg). Mice were poisoned once a day, exposed for 1 and 3 days and were treated with VC at the same time. Twenty-four hours after exposure on the 1st and 3rd day, half of the mice in each group were weighed, the serum and testis tissues were collected. Testicular organ coefficient, malondialdehyde (MDA) and superoxide dismutase (SOD) in serum and testis tissues, and glutathione peroxidase (GSH-Px), reduced glutathione (GSH), oxidized glutathione (GSSG) and total glutathione (T-GSH) in testis tissues were detected. Results: Compared with the control group, the body weight and testicle organ coefficient of mice in the Cd group were decreased on the 1st and 3rd day; after 3 days of exposure, the serum SOD in the Cd group was decreased significantly and MDA was increased significantly (P＜0.05); the levels of SOD, GSH-Px, T-GSH and GSH/GSSG of testis in the Cd group were increased significantly on the 1st day (P＜0.05), while all the above indexes were decreased significantly on the 3rd day (P＜0.05), and the content of MDA was increased significantly on the 1st and 3rd days in the Cd group (P＜0.05); after VC treatment, the degree of reduction was decreased. Compared with the Cd group, the serum SOD and MDA levels in the VC+ Cd group were significantly different after 3 days of exposure (P＜0.05); the changes of SOD, GSH-Px, T-GSH and GSH/GSSG levels of the testis in the VC+ Cd group were significantly different on the 1st and 3rd day of exposure (P＜0.05), and the MDA level of the testis in the VC+ Cd group was decreased significantly on the 3rd day of exposure (P＜0.05). Compared with the Cd group for 1 day, the level of serum SOD exposed for 3 days was decreased significantly (P＜0.05), and the changes of testis indexes were also significantly different (P＜0.05). Conclusion: VC treatment can improve the antioxidant function of cadmium-loaded mice to some extent, and has protective effect on oxidative damage of testis.

Key words: cadmium, vitamin C, antioxidant enzymes, testicle, mice

CLC Number:

R15-1

ZHOU Jian, QIN Hao, LI Xiao-hong, WANG Yong-hui. Effects of vitamin C on antioxidant function of testis in cadmium-loaded mice[J]. CJAP, 2022, 38(3): 233-237.

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Effects of vitamin C on antioxidant function of testis in cadmium-loaded mice

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