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首页> 外文期刊>Acta Horticulturae >Neuroprotective activity of tassel flower (Emila sonchifolia).
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Neuroprotective activity of tassel flower (Emila sonchifolia).

机译:流苏花(Emila sonchifolia)的神经保护活性。

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A phytochemical study on the ethanol extract of tassel flower (Emilia sonchifolia) led to the isolation of senecionine-N-oxide (1), kaempferol 3-O-rutinoside (2) and protocatechuic acid (3). The structures of these compounds were determined using spectroscopic analyses (UV, NMR and MS), with comparison of their spectral data with previously reported values. These compounds were reported for the first time for this plant. Neuroprotective properties of the ethanol extract and the isolated compounds were examined using antioxidant, cytoprotective, anti-inflammatory and acetylcholin-esterase inhibitory assays. Antioxidant activity was evaluated using ferric reducing antioxidant power (FRAP), beta -carotene bleaching and 2, 2-diphenyl-1-picrylhydrazyl (DPPH) assays. Compounds 2 and 3 displayed profound antioxidant capacities. Compound 2 elicited high cytoprotection with the percentage of protection 56.62% and significant inhibition of 5-lipoxygenase (5-LOX) activities with IC50 44.59 micro g ml-1. Compound 2 is also acetylcholinesterase inhibitor.
机译:对流苏花(Emilia sonchifolia)的乙醇提取物进行的植物化学研究导致分离出senecionine-N-氧化物(1),山奈酚3-O-芸香苷(2)和原儿茶酸(3)。这些化合物的结构通过光谱分析(UV,NMR和MS)确定,并将其光谱数据与先前报道的值进行比较。这些化合物是首次报道用于该植物。使用抗氧化剂,细胞保护剂,抗炎药和乙酰胆碱酯酶抑制试验检测了乙醇提取物和分离出的化合物的神经保护特性。使用三价铁还原抗氧化剂能力(FRAP),β-胡萝卜素漂白和2,2-二苯基-1-吡啶并肼基(DPPH)测定来评估抗氧化活性。化合物2和3具有强大的抗氧化能力。化合物2以IC 50 44.59 micro g ml -1 引起高细胞保护,保护百分比为56.62%,并显着抑制5-脂氧合酶(5-LOX)活性。化合物2也是乙酰胆碱酯酶抑制剂。

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