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Abstract Title:

[Antioxidant mechanism of diallyl sulfide in inhibiting leucopenia in peripheral blood induced by benzene in rats].

Abstract Source:

Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi. 2019 Oct 20 ;37(10):737-745. PMID: 31726503

Abstract Author(s):

T Yu, Q Wang, X J Li, M Li, Z D Liu, K Q Xie

Article Affiliation:

T Yu

Abstract:

To investigate the antioxidant mechanism of diallyl sulfide (DAS) in antagonizing the reduction in peripheral blood white blood cells (WBC) induced by benzene in rats.A total of 60 specific pathogen-free adult male Sprague-Dawley rats, with a body weight of 180-220 g, were selected, and after 5 days of adaptive feeding, they were randomly divided into blank control group, DAS control group, benzene model group, benzene+low-dose DAS group, benzene+middle-dose DAS group, and benzene+high-dose DAS group, with 10 rats in each group. The rats in the benzene+low-dose DAS group, the benzene+middle-dose DAS group, the benzene+high-dose DAS group, and the DAS control group were given DAS by gavage at a dose of 40, 80, 160, and 160 mg/kg·bw, respectively, and those in the blank control group and the benzene model group were given an equal volume of corn oil; 2 hours later, the rats in the benzene model group, the benzene+low-dose DAS group, the benzene+middle-dose DAS group, and the benzene+high-dose DAS group were given a mixtureof benzene (1.3 g/kg·bw) and corn oil (with a volume fraction of 50%), and those in the blank control group and the DAS control group were given an equal volume of corn oil. The above treatment was given once a day for 4 consecutive weeks. At 1 day before treatment, anticoagulated blood was collected from the jugular vein for peripheral blood cell counting. After anesthesia with intraperitoneally injected pentobarbital (50 mg/kg·bw), blood samples were collected from the abdominal aorta, serum was isolated, and the thymus, the spleen, and the femur were freed at a low temperature to measureoxidative and antioxidant indices. The femur at one side was freed for WBC counting in bone marrow.Compared with the blank control group, the benzene model group had significant reductions in the volume, weight, and organ coefficient of the spleen and the thymus (<0.05) ; compared with the benzene model group, the benzene+low-dose DAS group, the benzene+middle-dose DAS group, and the benzene+high-dose DAS group had significant increases in the volume of the spleen and the thymus and the weight and organ coefficient of the spleen (<0.05), and the benzene+middle-dose DAS group and the benzene+high-dose DAS group had significant increases in the weight and organ coefficient of the thymus (<0.05). Compared with the blank control group, the benzene model group had a significant reduction in WBC count in peripheral blood and bone marrow (<0.05), and compared with the benzene model group, the benzene+middle-dose DAS group and the benzene+high-dose DAS group had a significant increase in WBC count in peripheral blood and bone marrow (<0.05). Compared with the blank control group, the benzene model group had a significant increase in the serum level of malondialdehyde (MDA) (<0.05) and significant reductions in total superoxide dismutase (T-SOD) activity, reduced glutathione (GSH) level, GSH/oxidized glutathione (GSSG) ratio, total antioxidant capacity (T-AOC) (<0.05) ; compared with the benzene model group, the benzene+high-dose DAS group had a significant reduction in the serum level of MDA and significant increases in T-SOD activity, GSH level, GSH/GSSG ratio, and T-AOC (<0.05). Compared with the blank control group, the benzene model group had a significant increase in the level of MDA (<0.05) and significant reductions in GSH level, GSH/GSSG ratio, and T-AOC (<0.05) in the spleen; compared with the benzene model group, the benzene+low-dose DAS group, the benzene+middle-dose DAS group, and the benzene+high-dose DAS group had a significant reduction in MDA level (<0.05) and significant increases in GSH level and T-AOC (<0.05), and the benzene+high-dose DAS group had significant increases in T-SOD activity and GSH/GSSG ratio (<0.05). Compared with the blank control group, the benzene model group had a significant increase in the level of MDA in bone marrow cells (BMCs) and peripheral blood mononucleated cells (PBMCs) (<0.05) and a significant reduction in T-AOC in PBMCs (<0.05) ; compared with the benzene model group, the benzene+low-dose DAS group, the benzene+middle-dose DAS group, and the benzene+high-dose DAS group had a significant reduction in the level of MDA in BMCs and PBMCs (<0.05), and the benzene+high-dose DAS group had significant increases in GSH level and GSH/GSSG ratio (<0.05) .DAS can antagonize the benzene-induced reduction in peripheral blood WBC, possibly by exerting an anti-oxidative stress effect.

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