五味子水提液治疗肾小球肾炎大鼠的尿液代谢组学研究

目的：采用基于气相色谱-质谱联用(gas chromatographymass spectrometry, GC-MS)的尿液代谢组学技术研究五味子水提液治疗肾小球肾炎大鼠的机制。方法将大鼠按随机数字表法分为正常组、模型组、给药组各10只。采取大鼠注射阳离子化牛血清白蛋白方法制作大鼠原位免疫复合物性肾炎模型，检测各组大鼠24 h尿蛋白，并采用基于GC-MS的尿液代谢组学技术结合模式识别方法对各组大鼠尿液进行代谢网络分析，筛选与肾小球肾炎疾病相关的潜在生物标记物。结果给药后12 d，给药组大鼠24 h尿蛋白含量(9.24±2.69)mg比(76.04±18.88)mg]较模型组降低(P＜0.01)；尿液代谢组学共确定15个内源性生物标记物，涉及代谢通路包括不饱和脂肪酸的生物合成、丙酮酸代谢、糖酵解代谢等。结论五味子可能通过调节花生四烯酸及脂肪酸代谢发挥治疗肾小球肾炎的作用。

Urinary metabolic profiling research on the protective function of Schisandra chinensis against glomerulonephritis of rat models

Objective To study the effect of Schisandra chinensis on the treatment of glomerular nephritis in rats by gas chromatography mass spectrometry (GC-MS).Methods The rats were randomly divided into normal group, model group, and the treatment group, 10 rats in each group. We employed the C-BSA injuction to induce situ immune complexes nephritis rate model. Then 24 hour urinary protein was detected after 12 days and a urine metabonomic technology combined with pattern recognition method was used to identify the network analysis, which focuses on the key metablites and enzmys with glomerulonephritis disease.Results After 12 days, compared with the control group, the 24 h urinary protein content (9.24 ± 2.69 mg vs. 76.04 ± 18.88 mg) significantly decreased (P<0.01). Urine metabonomicsi dentified 15 endogenous biomarkers, which included unsaturated fatty acid biosynthesis, pyruvate metabolism and glycolysis metabolism. These metabolic pathways are associated with kidney diseases.Conclusion The effect of Schisandra chinensis on glomerular nephritis may treated by regulating the metabolism of arachidonic acid and fatty acid in four.