人工智能结合生物网络对“养血清脑制剂”和“逍遥丸”组方的优化及验证

目的:利用人工智能和大数据探寻符合中医药传统的复方中药组方优化思路,为复方中药二次开发提供参考。方法:围绕“君臣佐使”理论,基于中药材安全性预测模型,预测养血清脑制剂、逍遥丸中佐药和使药的安全性:(1)剔除安全性低的药材后获得改良方;(2)保留安全性高的药材,结合中药材成分吸收、分布、代谢和排泄性质(ADME)及靶点网络分析获得改良方。随机游走算法计算养血清脑制剂改良方、逍遥丸改良方与其原方的相关性。取ICR小鼠112只,随机分为模型对照组、阿司匹林肠溶片0.2 g/kg组、养血清脑制剂原方7、14、28 g/kg组和改良方7、14、28 g/kg组,每组14只。末次给药后1 h各小鼠腹腔注射0.6%醋酸溶液,观察药物对小鼠扭体反应的影响。随机将78只SD大鼠分为正常对照组、盐酸氟西汀0.01 g/kg组、慢性不可预知温和刺激(CUMS)结合孤养抑郁大鼠模型对照组、逍遥丸原方4.34 g/kg组、改良方4.44 g/kg和4.40 g/kg组,每组13只。在试验第0、7、14、21、28、35、42、49、56、63 d分别称体质量,进行糖水消耗试验和敞箱试验;采用酶联免疫吸附(ELISA)法检测大鼠海马中多巴胺(DA)、去甲肾上腺素(NE)、5-羟色胺(5-HT)、脑源性神经营养因子(BDNF)的含量。结果:养血清脑制剂改良方和原发性头痛显著相关(Z score=11.95);与模型对照组相比,养血清脑制剂原方7、14、28 g/kg组和改良方7、14、28 g/kg组均能明显抑制醋酸所致小鼠扭体次数,呈现明显镇痛作用(P<0.05或P<0.01)。逍遥丸改良方与抑郁症显著相关(Z score=23.61);与正常对照组相比,第63 d模型对照组大鼠出现显著抑郁症状(P<0.01);与模型对照组相比,逍遥丸改良方(减薄荷和茯苓)4.40 g/kg组显著改善模型大鼠的抑郁症状(P<0.01),大鼠海马中DA、NE、5-HT、BDNF的含量显著增加(P<0.01),优于逍遥丸原方4.34 g/kg组和改良方(减薄荷)4.44 g/kg组。结论:养血清脑制剂改良方镇痛作用与原方相当,逍遥丸改良方(减薄荷和茯苓)通过改善抑郁症状和增加DA、NE、5-HT、BDNF的含量发挥抗抑郁作用,且优于原方。该方法可为复方中药二次开发提供参考。

Yangxueqingnao particles inhibit rat vascular smooth muscle cell proliferation induced by lysophosphatidic acid

Objective: To observe the effect of Yangxueqingnao particles on rat vascular smooth muscle cell (VSMC) prolif- eration induced by lysophosphatidic acid (LPA). Methods: The amount of 3H-TdR (3H-thymidine) admixed in cultured rat VSMC was measured and mitogen-activated protein kinase (MAPK) activity and lipid peroxidation end product malondialdehyde (MDA) content of the VSMC were assayed. Results: 1×10?9, 1×10?8, 1×10?7 mol/L LPA in a concentration dependent manner, induced the amount of 3H-TdR admixed, MAP kinase activity, and MDA content of the cultured rat VSMC to increase. However, 5%, 10%, and 15% Yangxueqingnao serum preincubation resulted in a decrease of 23.0%, 42.0%, and 52.0% (P<0.01) respectively in the amount of 3H-TdR admixed, a decline in VSMC MAP kinase activity of 13.9% (P<0.05), 29.6% (P<0.01), and 48.9% (P<0.01) respectively, and also, a decrease in MDA content of VSMC of 19.4%, 24.7%, and 43.2% (P<0.01) respectively, in the 1×10?7 mol/L LPA-treated VSMC. Conclusions: LPA activates the proliferation and lipid peroxidation of VSMC in a concentration dependent manner. The LPA-induced VSMC proliferation is related to the activity of MAP kinases, enzymes involved in an intracellular signalling pathway. The results of the present study showed that Yangxueqingnao particles can effectively inhibit LPA-induced VSMC proliferation, MAP kinase activation, and reduce lipid peroxidative lesion.