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  • Title: Diallyl sulfide protects against lipopolysaccharide/d-galactosamine-induced acute liver injury by inhibiting oxidative stress, inflammation and apoptosis in mice.
    Author: Li M, Wang S, Li X, Jiang L, Wang X, Kou R, Wang Q, Xu L, Zhao N, Xie K.
    Journal: Food Chem Toxicol; 2018 Oct; 120():500-509. PubMed ID: 30075314.
    Abstract:
    The effects of diallyl sulfide (DAS) and the potential mechanisms were investigated on lipopolysaccharide (LPS)/d-galactosamine (D-GalN)-induced acute liver injury in mice. DAS (50, 100, 200 μmol/kg) were orally given 1 h prior to LPS (10 μg/kg)/D-GalN (500 mg/kg) intraperitoneal injection. Serum and liver were collected at 8 h after LPS/D-GalN treatment. DAS Pretreatment reduced the activities of serum aminotransferase and attenuated histopathological damage in LPS/D-GalN-induced liver injury. Additionally, LPS/D-GalN-induced liver oxidative stress was ameliorated by DAS pretreatment, as evidenced by the decreased content of MDA and increased level of GSH, SOD, CAT in liver. Moreover, LPS/D-GalN-induced the excessive levels of TNF-α, IL-1β and MCP-1 in serum and liver was decreased by DAS pretreatment. Furthermore, DAS pretreatment attenuated LPS/D-GalN-induced hepatocyte apoptosis, as evidenced by TUNEL staining and protein expression of cleaved caspase3, Bax and Bcl-2 in liver. DAS also up-regulated the expression of p-PI3K p85 and p-Akt in a dose-dependent manner, and Akt inhibitor MK-2206 weakened the inhibitory effect of DAS on hepatocyte apoptosis induced by LPS/D-GalN. In conclusion, the results suggest that DAS exerts the protective effect on LPS/GalN-induced acute liver injury, and this effects possibly by suppressing oxidative stress, inflammation and regulating hepatocyte apoptosis via the PI3K/Akt pathway.
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