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The effect of a-tocopheryl hemisuccinate (TS) on lipopolysaccharide (LPS)/interferon-c (IFN)-induced nitric oxide production in rat vascular smooth muscle cells (VSMC) was examined. The LPS/IFN-induced NO production was enhanced by TS but not by the other a-tocopherol (a-T) derivatives a-tocopheryl acetate (TA) and a-tocopheryl nicotinate (TN), or a-T itself. a-T, TA and TN inhibited the enhancement by TS of LPS/IFNinduced NO production. The enhancing effect of TS was observed in the presence of LPS, but not IFN, suggesting that TS participates in the LPS-stimulated signal pathwayleading to NO production....
Nội dung trích xuất từ tài liệu:
Báo cáo Y học: Enhancement by a-tocopheryl hemisuccinate of nitric oxide production induced by lypopolysaccharide and interferon-c through the upregulation of protein kinase C in rat vascular smooth muscle cells
