4.7 Article

The protective role of oxymatrine on neuronal cell apoptosis in the hemorrhagic rat brain

期刊

JOURNAL OF ETHNOPHARMACOLOGY
卷 143, 期 1, 页码 228-235

出版社

ELSEVIER IRELAND LTD
DOI: 10.1016/j.jep.2012.06.028

关键词

Intracerebral hemorrhage; Oxymatrine; Inflammation; Oxidative stress; Neuronal cell apoptosis

资金

  1. Traditional Chinese Medicine Department of Zhejiang Province [2010ZA101]

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Ethnopharmacological relevance: Oxymatrine is extracted from the traditional Chinese herb Sophora flavescens Ait, possesses anti-inflammatory, anti-oxidative and anti-apoptotic properties, and has been used for the treatment of chronic viral hepatitis and many other diseases. Aims of the study: This study aimed to investigate the effects of oxymatrine on inflammatory response mediated by Toll-like receptor4 (TLR4) and nuclear factor kappa-B (NF-kappa B), oxidative injury induced by 12/15 lipoxygenase (12/15-LOX), phosphorylated p38 mitogen activated protein kinase (phosphor-p38 MAPK) and cytosolic phospholipase A2 (cPLA2), and neuronal cell apoptosis in rat brain with intracerebral hemorrhage (ICH). Materials and methods: Wistar rats were treated intraperitoneally with 60 or 120 mg/kg of oxymatrine daily for 5 days following ICH. The rats were sacrificed at hour 2, 6, 12, 24, 48, 72, and 120 after ICH. The gene expressions of TLR-4 and NF-kappa B, the levels of TNF-alpha, interleukin-1beta, interleukin-6, 12/15-LOX, phospho-p38 MAPK and cPLA2, and the number of apoptotic neuronal cells in rat brain were determined. Results: Oxymatrine at 120 mg/kg significantly suppressed gene expressions of TLR-4 and NF-kappa B, decreased levels of TNF-alpha, interleukin-1 beta and interleukin-6, inhibited synthesis of 12/15-LOX, phospho-p38 MAPK and cPLA2 protein, and mitigated apoptotic neuronal changes following ICH in rat. Conclusion: Oxymatrine at 120 mg/kg following ICH inhibits inflammatory responses, oxidative injury, and neuronal cell apoptosis in rats. (C) 2012 Elsevier Ireland Ltd. All rights reserved.

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