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首页> 外文期刊>Neuroscience Letters: An International Multidisciplinary Journal Devoted to the Rapid Publication of Basic Research in the Brain Sciences >Activators of peroxisome proliferator-activated receptor-gamma (PPARgamma) inhibit inducible nitric oxide synthase expression but increase heme oxygenase-1 expression in rat glial cells.
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Activators of peroxisome proliferator-activated receptor-gamma (PPARgamma) inhibit inducible nitric oxide synthase expression but increase heme oxygenase-1 expression in rat glial cells.

机译:过氧化物酶体增殖物激活受体-γ(PPARγ)的激活剂抑制大鼠胶质细胞中可诱导的一氧化氮合酶表达,但增加血红素加氧酶-1表达。

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摘要

The peroxisome proliferator-activated receptor-gamma (PPARgamma) is activated by 15-deoxy-delta(12,14) prostaglandin J2 (15d-PGJ2), anti-diabetic thiazolidinediones and several non-steroidal anti-inflammatory drugs (NSAIDs). In rat glial cells, lipopolysaccharide and interferon-gamma (LPS/IFN-gamma) induced expression of both inducible nitric oxide synthase (iNOS) and heme oxygenase-1 (HO-1). PPARgamma activators inhibited iNOS expression by LPS and IFN-gamma. However, PPARgamma activator alone induced HO-1 expression and further enhanced LPS/IFN-gamma-induced HO-1 expression. These results suggest that activation of PPARgamma negatively regulate iNOS expression and positively regulates HO-1 expression in glial cells.
机译:过氧化物酶体增殖物激活受体-γ(PPARγ)被15-脱氧-δ(12,14)前列腺素J2(15d-PGJ2),抗糖尿病噻唑烷二酮和几种非甾体抗炎药(NSAIDs)激活。在大鼠神经胶质细胞中,脂多糖和干扰素-γ(LPS /IFN-γ)诱导诱导型一氧化氮合酶(iNOS)和血红素加氧酶-1(HO-1)的表达。 PPARγ激活剂通过LPS和IFN-γ抑制iNOS表达。但是,单独的PPARγ激活剂诱导HO-1表达,并进一步增强LPS /IFN-γ诱导的HO-1表达。这些结果表明,PPARgamma的激活对神经胶质细胞中iNOS的表达负调控,对HO-1的表达正调控。

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