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- W2086264638 abstract "Scirpus yagara Ohwi is a perennial, aquatic plant, whose dry tubers have long been used as Traditional Chinese Medicine (TCM) “Sanleng” for the treatment of postpartum abdominal pain, hyperemesis gravidarum, amenorrhea, dyspepsia and several inflammatory related diseases. Although it is known to have anti-inflammatory activities, its mechanism of action on lipopolysaccharide (LPS)-induced inflammation has not yet been identified in detail.This study was designed to investigate the anti-inflammatory activity of the active fraction (AF) from the tuber of Scirpus yagara both in vitro and in vivo. RAW264.7 macrophage was incubated for 16 h with 1 µg/ml of LPS in absence or presence of AF (0, 10, 50 and 100 µg/ml) and the secretions of tumor necrosis-alpha (TNF-α) and interleukin-6 (IL-6) in the medium were determined by using an enzyme-linked immunosorbent assay (ELISA). In the in vivo study, mice were orally administrated with AF (50 and 300 mg/kg) for three days consecutively. 1 h after the last AF administration, the mice were intraperitoneally injected with LPS (15 mg/kg), and the life span of LPS-challenged mice were determined. Furthermore, the levels of pro-inflammatory cytokines TNF-α and IL-6 in the serum, lung and liver were measured using ELISA kit, and histological change in lungs was examined by light microscopy. Additionally, the components of AF were analyzed by high performance liquid chromatography (HPLC) using a C18 column. AF significantly decreased TNF-α and IL-6 production induced by LPS in RAW264.7 macrophage. In LPS-induced mouse endotoxin shock model, AF pre-treatment significantly improved the survival rate of mice. And LPS-induced increases of pro-inflammatory cytokines TNF-α and IL-6 in the serum, lung and liver were markedly suppressed by AF. Moreover, the histopathological examination indicated that AF could significantly attenuate lung tissues injury in endotoxemic mice. In addition, eight compounds (protocatechuic acid, vanillic acid, p-coumaric acid, ferulic acid, methyl-3,6-dihydroxy-2-[2-(2-hydroxyphenyl)-ethynyl] benzoate, sciryagarol I, sparstolonin B, SanLeng diphenyllactone) of AF were quantified by HPLC analysis. These results suggested that AF protected mice against LPS-induced lethality by inhibiting the production of multiple cytokines and organ dysfunction. Thus AF may prove beneficial in the prevention and treatment of endotoxin shock." @default.
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- W2086264638 date "2014-12-01" @default.
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- W2086264638 title "Protective effects of the active fraction from the tuber of Scirpus yagara in mouse endotoxin shock model" @default.
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- W2086264638 doi "https://doi.org/10.1016/j.jep.2014.10.032" @default.
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