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  • Title: [Effect of resveratrol on lipopolysaccharide-induced activation of rat peritoneal macrophages].
    Author: Ma ZH, Ma QY, Sha HC, Wang LC.
    Journal: Nan Fang Yi Ke Da Xue Xue Bao; 2006 Sep; 26(9):1363-5. PubMed ID: 16982457.
    Abstract:
    OBJECTIVE: To investigate nuclear factor kappa B (NF-kappaB) activation induced by lipopolysaccharide (LPS) in rat peritoneal macrophages (PMAs) and the inhibitory effect of resveratrol on NF-kappaB activation. METHODS: PMAS from normal SD rats were randomly divided into 7 groups, including a control group, a LPS group and 5 resveratrol groups (I-V). PMAs of the control group were incubated in DMEM, and those in LPS group in DMEM containing LPS (10 microg/ml). PMAS of resveratrol groups I-V were incubated in DMEM containing LPS (10 microg/ml) and different concentrations of resveratrol. After 24 h of incubation, NF-kappaB activation in the PMAs was determined, and the expression levels of tumor necrosis factor alpha (TNF-alpha), interleukin-1 (IL-1) and nitric oxide (NO) in the culture medium were measured. RESULTS: Exposure to LPS resulted in an excessive enhancement of cytokine and NO expressions in the PMAs. Resveratrol at 1.25-10 microg/ml produced a dose- dependent inhibition of cytokine and NO expressions and on NF-kappaB activation in LPS-stimulated PMAs. CONCLUSION: Resveratrol can inhibit LPS-induced NF-kappaB activation in rat PMAs and subsequently suppress the expressions of TNF-alpha, IL-1 and NO.
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