唐古特白刺叶化学成分及其抗炎活性研究
投稿时间:2017-08-02     点此下载全文
引用本文:敖亮,李静,刘宇宏.唐古特白刺叶化学成分及其抗炎活性研究[J].中国现代中药,2018,20(2):169-172
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敖亮 AO Liang 延安大学 附属医院 风湿科,陕西延安716000 Rheumatism Department of Yan′an University Affiliated Hospital,Yan′an 716000,China 敖亮,主治医师,研究方向:类风湿性关节炎、强直性脊柱炎的临床与治疗;E-mail:aoliang321@163.com 
李静 LI Jing 延安大学 附属医院 风湿科,陕西延安716000 Rheumatism Department of Yan′an University Affiliated Hospital,Yan′an 716000,China  
刘宇宏 LIU Yu-hong 延安大学 附属医院 风湿科,陕西延安716000 Rheumatism Department of Yan′an University Affiliated Hospital,Yan′an 716000,China  
中文摘要:目的:对唐古特白刺 Nitraria tangutorum Bor.叶的化学成分及其抗炎活性进行研究。方法:采用液液萃取、硅胶柱色谱和反相C18半制备液相色谱等方法进行分离纯化,根据理化性质及核磁共振波谱数据鉴定化合物的结构。采用脂多糖(LPS)诱导的小鼠巨噬细胞RAW264.7炎症模型,探究唐古特白刺叶中化合物5~10对巨噬细胞经LPS刺激后产生的炎症因子[肿瘤坏死因子-α(TNF-α)及白细胞介素-6(IL-6)]的影响,评价其抗炎活性。结果:从唐古特白刺叶的80%乙醇水提取物中分离得到10个化合物、分别鉴定为3,3′,4′-三-O-甲基鞣花酸(1)、苜蓿素-7-O-β-D-葡萄糖苷(2)、邻苯二甲酸二丁酯(3)、鼠李秦素(4)、异杨梅二醇(5)、三春水柏枝素A(6)、(3S,5R,6S,7E)-3,5,6-三羟基-7-香波龙大柱烯-9-酮(7)、1,2,3,4-四氢-1,3,4-三氧代-β-咔啉(8)、3-羟基-β-咔啉(9)、β-咔啉-1-羧酸(10)。结论:化合物1~10均为首次从该属植物中分离得到。其中化合物5、6、8、9对炎症因子的抑制作用最强,其IC50值最小仅为19.16 μmol·L-1,该研究首次发现唐古特白刺的抗炎成分。
中文关键词:唐古特白刺  萜类  咔啉生物碱
 
Study on Chemical Components from Leaves of Nitraria tangutorum and Its Anti-inflammatory Bioactivity
Abstract:Objective:To study the chemical components from the leaves of Nitraria tangutorum and its anti-inflammation bioactivity.Methods:The chemical components were isolated by liquid-liquid extraction,silica gel chromatography,and repeated C18 semi-preparative-HPLC.Their structures were elucidated by physicochemical properties and1H-NMR and 13C-NMR data.LPS induced RAW264.7 inflammatory cell model was established to evaluate the effective inhibition of proinflammatory factor(TNF-α and IL-6)of compounds 5-10 from N.tangutorum.Results:Ten compounds were isolated from the ethanol extract of the leaves of N.tangutorum and their structures were identified as 3,3′,4′-tri-O-methylellagic acid(1),tricin-7-O-β-D-glucopyranoside(2),dibutyl-phthalate(3),rhamnazin(4),Isomyricadiol(5),Myricarin A(6),trihydroxy-7-megastigmen-9-one(7),1,2,3,4-Tetrahydro-1,3,4-trioxo-B-carbo1ine(8),3-hydroxy-β-carboline(9),β-carboline-1-carboxylic acid(10).Conclusion:All the isolates are reported from the plants of N.tangutorum.for the first time.Activity assay showed that compound 5,6,8 and 9 presented better inhibition for proinflammatory factor,the minimum IC50 is 19.16 μmol·L-1.
keywords:Nitraria tangutorum Bobr.  terpenoid  carboline alkaloids
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