Three new with anolides,daturaselines A-C(1-3),and three new with anolides glycosides,daturasesides A-C(4-6),were isolated and identified from ethyl acetate-soluble fraction of ethanol extract of Datura metel seeds.Th...Three new with anolides,daturaselines A-C(1-3),and three new with anolides glycosides,daturasesides A-C(4-6),were isolated and identified from ethyl acetate-soluble fraction of ethanol extract of Datura metel seeds.The structures of new compounds were established according to the 1D and 2D NMR spectra,combined with high resolution展开更多
目的探讨洋金花醉茄内酯类化合物对银屑病小鼠肠道中Th17/Treg细胞功能的影响。方法采用经典的银屑病小鼠模型,即咪喹莫特乳膏(IMQ)诱导小鼠背部皮肤产生银屑病样病理模型,并随机分为四组,即空白组、模型组、洋金花组和雷公藤阳性药物...目的探讨洋金花醉茄内酯类化合物对银屑病小鼠肠道中Th17/Treg细胞功能的影响。方法采用经典的银屑病小鼠模型,即咪喹莫特乳膏(IMQ)诱导小鼠背部皮肤产生银屑病样病理模型,并随机分为四组,即空白组、模型组、洋金花组和雷公藤阳性药物组。采用Psoriasis area and severity index(PASI)分析各组皮损严重程度;应用流式细胞法检测小鼠肠系膜淋巴结中Th17/Treg细胞数量表达;应用酶联免疫吸附法(ELISA法)依次检测肠粘膜中Th17/Treg细胞相关因子的含量。结果洋金花组能减少IMQ诱导的PASI评分,降低肠系膜中Th17细胞表达及相关细胞因子,而升高Treg细胞的表达及相关细胞因子。结论洋金花醉茄内酯类化合物可降低银屑病小鼠肠道Th17细胞功能,同时升高Treg细胞功能,进一步提示在肠-免疫-皮肤轴中,洋金花醉茄内酯类化合物通过影响肠道中的Th17/Treg细胞免疫平衡而达到防治银屑病的作用。展开更多
基金Major State BasicResearch Development Program(973 Program)of China(2013CB531801)Chang Jiang Scholar Candidates Programme for Provincial Universities in Heilongjiang(2013CJHB00)
文摘Three new with anolides,daturaselines A-C(1-3),and three new with anolides glycosides,daturasesides A-C(4-6),were isolated and identified from ethyl acetate-soluble fraction of ethanol extract of Datura metel seeds.The structures of new compounds were established according to the 1D and 2D NMR spectra,combined with high resolution
文摘目的探讨洋金花醉茄内酯类化合物对银屑病小鼠肠道中Th17/Treg细胞功能的影响。方法采用经典的银屑病小鼠模型,即咪喹莫特乳膏(IMQ)诱导小鼠背部皮肤产生银屑病样病理模型,并随机分为四组,即空白组、模型组、洋金花组和雷公藤阳性药物组。采用Psoriasis area and severity index(PASI)分析各组皮损严重程度;应用流式细胞法检测小鼠肠系膜淋巴结中Th17/Treg细胞数量表达;应用酶联免疫吸附法(ELISA法)依次检测肠粘膜中Th17/Treg细胞相关因子的含量。结果洋金花组能减少IMQ诱导的PASI评分,降低肠系膜中Th17细胞表达及相关细胞因子,而升高Treg细胞的表达及相关细胞因子。结论洋金花醉茄内酯类化合物可降低银屑病小鼠肠道Th17细胞功能,同时升高Treg细胞功能,进一步提示在肠-免疫-皮肤轴中,洋金花醉茄内酯类化合物通过影响肠道中的Th17/Treg细胞免疫平衡而达到防治银屑病的作用。