目的:应用计算机系统生物学方法预测茵陈蒿汤的分子靶标,并阐明有效成分群的协同作用机制。方法:采用TCMGeneDIT数据库系统,文本挖掘茵陈蒿、大黄、栀子各自所能影响的基因或蛋白质数据;收集茵陈蒿汤中6,7-二甲基氧香豆素、京尼平苷、...目的:应用计算机系统生物学方法预测茵陈蒿汤的分子靶标,并阐明有效成分群的协同作用机制。方法:采用TCMGeneDIT数据库系统,文本挖掘茵陈蒿、大黄、栀子各自所能影响的基因或蛋白质数据;收集茵陈蒿汤中6,7-二甲基氧香豆素、京尼平苷、红花黄色素A、大黄酸、大黄素等17种血中移行成分,采用Accelrys公司Discovery Studio 2.5版完成分子构建,并上载至PharmMapper服务器进行靶标预测;从BIND、BioGRID、DIP、HPRD、IntAct、MINT等分子相互作用数据库中收集与预测靶标有直接相互作用的蛋白质,进行综合分析。结果:已有的实验证实:4个蛋白质与茵陈蒿汤相关,8个蛋白质与大黄相关,没有蛋白质与栀子相关。大黄酸、大黄素、6,7-二甲基氧香豆素、绿原酸等6种化学成分不但可直接作用于实验证实的靶标,也可像异秦皮啶、檞皮素3-O-葡萄糖苷等8种化学成分一样,通过影响相关靶标而发挥间接的治疗作用。结论:本研究结果可为茵陈蒿汤的后续研究提供有用的线索,促进茵陈蒿汤的分子作用机制研究,本研究策略可为中药复方的系统研究提供参考。展开更多
Deposition parameters that have great influences on hot filament chemical vapor deposition (HFCVD) diamond films growth on inner hole surfaces of WC?Co substrates mainly include the substrate temperature (t), carbon c...Deposition parameters that have great influences on hot filament chemical vapor deposition (HFCVD) diamond films growth on inner hole surfaces of WC?Co substrates mainly include the substrate temperature (t), carbon content (φ), total pressure (p) and total mass flow (F). Taguchi method was used for the experimental design in order to study the combined effects of the four parameters on the properties of as-deposited diamond films. A new figure-of-merit (FOM) was defined to assess their comprehensive performance. It is clarified thatt,φandp all have significant and complicated effects on the performance of the diamond film and the FOM, which also present some differences as compared with the previous studies on CVD diamond films growth on plane or external surfaces. Aiming to deposit HFCVD diamond films with the best comprehensive performance, the key deposition parameters were finally optimized as:t=830 °C,φ=4.5%,p=4000 Pa,F=800 mL/min.展开更多
文摘目的:应用计算机系统生物学方法预测茵陈蒿汤的分子靶标,并阐明有效成分群的协同作用机制。方法:采用TCMGeneDIT数据库系统,文本挖掘茵陈蒿、大黄、栀子各自所能影响的基因或蛋白质数据;收集茵陈蒿汤中6,7-二甲基氧香豆素、京尼平苷、红花黄色素A、大黄酸、大黄素等17种血中移行成分,采用Accelrys公司Discovery Studio 2.5版完成分子构建,并上载至PharmMapper服务器进行靶标预测;从BIND、BioGRID、DIP、HPRD、IntAct、MINT等分子相互作用数据库中收集与预测靶标有直接相互作用的蛋白质,进行综合分析。结果:已有的实验证实:4个蛋白质与茵陈蒿汤相关,8个蛋白质与大黄相关,没有蛋白质与栀子相关。大黄酸、大黄素、6,7-二甲基氧香豆素、绿原酸等6种化学成分不但可直接作用于实验证实的靶标,也可像异秦皮啶、檞皮素3-O-葡萄糖苷等8种化学成分一样,通过影响相关靶标而发挥间接的治疗作用。结论:本研究结果可为茵陈蒿汤的后续研究提供有用的线索,促进茵陈蒿汤的分子作用机制研究,本研究策略可为中药复方的系统研究提供参考。
基金Projects(51275302,51005154)supported by the National Natural Science Foundation of China
文摘Deposition parameters that have great influences on hot filament chemical vapor deposition (HFCVD) diamond films growth on inner hole surfaces of WC?Co substrates mainly include the substrate temperature (t), carbon content (φ), total pressure (p) and total mass flow (F). Taguchi method was used for the experimental design in order to study the combined effects of the four parameters on the properties of as-deposited diamond films. A new figure-of-merit (FOM) was defined to assess their comprehensive performance. It is clarified thatt,φandp all have significant and complicated effects on the performance of the diamond film and the FOM, which also present some differences as compared with the previous studies on CVD diamond films growth on plane or external surfaces. Aiming to deposit HFCVD diamond films with the best comprehensive performance, the key deposition parameters were finally optimized as:t=830 °C,φ=4.5%,p=4000 Pa,F=800 mL/min.
