目的:研究消癥散结方对高糖刺激下肾小球系膜细胞(MC)的保护作用以及对鞘氨醇激酶1/1磷酸鞘氨醇(Sphk1/S1P)信号通路的干预作用。方法:使用不同浓度消癥散结方含药血清和厄贝沙坦含药血清以及S1PR2抑制剂(JTE-013)与高糖共同培养MC,48h...目的:研究消癥散结方对高糖刺激下肾小球系膜细胞(MC)的保护作用以及对鞘氨醇激酶1/1磷酸鞘氨醇(Sphk1/S1P)信号通路的干预作用。方法:使用不同浓度消癥散结方含药血清和厄贝沙坦含药血清以及S1PR2抑制剂(JTE-013)与高糖共同培养MC,48h后流式细胞仪检测细胞周期,实时荧光定量PCR和Western Blot法检测FN、ColⅣ、TGF-β1、NF-κB(p65)、Sphk1和S1PR2的表达。结果:与高糖组比较,消癥散结方各剂量组细胞周期中G1期显著增加,S期显著减少(P<0.01);消癥散结方低剂量组细胞FN m RNA和NF-κB(p65)蛋白表达降低(P<0.05),ColⅣ蛋白、Sphk1 m RNA和蛋白表达显著降低(P<0.01);消癥散结方中剂量组细胞Sphk1m RNA表达显著降低(P<0.05),FN m RNA和Sphk1蛋白表达显著降低(P<0.01);消癥散结方高剂量组细胞,FN蛋白、NF-κB(p65)m RNA和蛋白表达显著降低(P<0.05),FN、ColⅣ、Sphk1与S1PR2的m RNA以及TGF-β1的m RNA和蛋白均显著降低(P<0.01)。结论:消癥散结方对高糖刺激下MC的保护作用可能与抑制Sphk1/S1P信号通路有关。展开更多
The role of the intersection between two potential energy surfaces has been more generally emphasizing on than before.In the present system,the intersections between S1,T1 and S0 surfaces were optimized with the state...The role of the intersection between two potential energy surfaces has been more generally emphasizing on than before.In the present system,the intersections between S1,T1 and S0 surfaces were optimized with the state-averaged CAS(8,7)/6-31G method.The comparison of their optimized structures demonstrates that the intersection points of S1/S0 and S1/T1 locate in the same region,referred to as S1/T1/S0 point.The existence of S1/T1/S0 point and its high possibility of radiationless transition via intersystem crossing or internal conversion,would make the system have the most efficient funnel to generate the ground- and triplet-state products,which is consistent with the experimental facts.展开更多
文摘目的:研究消癥散结方对高糖刺激下肾小球系膜细胞(MC)的保护作用以及对鞘氨醇激酶1/1磷酸鞘氨醇(Sphk1/S1P)信号通路的干预作用。方法:使用不同浓度消癥散结方含药血清和厄贝沙坦含药血清以及S1PR2抑制剂(JTE-013)与高糖共同培养MC,48h后流式细胞仪检测细胞周期,实时荧光定量PCR和Western Blot法检测FN、ColⅣ、TGF-β1、NF-κB(p65)、Sphk1和S1PR2的表达。结果:与高糖组比较,消癥散结方各剂量组细胞周期中G1期显著增加,S期显著减少(P<0.01);消癥散结方低剂量组细胞FN m RNA和NF-κB(p65)蛋白表达降低(P<0.05),ColⅣ蛋白、Sphk1 m RNA和蛋白表达显著降低(P<0.01);消癥散结方中剂量组细胞Sphk1m RNA表达显著降低(P<0.05),FN m RNA和Sphk1蛋白表达显著降低(P<0.01);消癥散结方高剂量组细胞,FN蛋白、NF-κB(p65)m RNA和蛋白表达显著降低(P<0.05),FN、ColⅣ、Sphk1与S1PR2的m RNA以及TGF-β1的m RNA和蛋白均显著降低(P<0.01)。结论:消癥散结方对高糖刺激下MC的保护作用可能与抑制Sphk1/S1P信号通路有关。
文摘The role of the intersection between two potential energy surfaces has been more generally emphasizing on than before.In the present system,the intersections between S1,T1 and S0 surfaces were optimized with the state-averaged CAS(8,7)/6-31G method.The comparison of their optimized structures demonstrates that the intersection points of S1/S0 and S1/T1 locate in the same region,referred to as S1/T1/S0 point.The existence of S1/T1/S0 point and its high possibility of radiationless transition via intersystem crossing or internal conversion,would make the system have the most efficient funnel to generate the ground- and triplet-state products,which is consistent with the experimental facts.
