Study on Chloroplast psbA-trnH Nucleotide Variation and Genetic Differentiation in Cultivated Plants of Gentiana officinalis from Qinghai

[Objective] The aim was to investigate the genetic diversity and analyze the genetic differentiation of germplasm resources of Gentiana officinalis H.Smith from Qinghai.[Method] The cpDNA of chloroplast psbA-trnH gene was sequenced to analyze the genetic diversity of six populations of G.officinalis.[Result] A total of 10 distinct haplotypes were detected in the studied populations,and seven variable sites were found by comparing their sequences.G.officinalis with high-level genetic diversity（h=0.771）.Genetic diversity was largely varied within populations,ranging from 0.563 to 0.857 for haplotype diversity,and from 0.002 43 to 0.005 83 for nucleotide diversity,respectively.Genetic differentiation among populations（Gst） of G.officinalis was 0.196 0;gene flow（Nm） was 2.05;80.40% of the genetic variability occurred within population.[Conclusion] The cultivated G.officinalis in Qinghai showed rich genetic diversity,which is beneficial for the production of high-quality herb medicine.

黄管秦艽中龙胆苦苷治疗骨关节炎的实验研究

目的:研究黄管秦艽中龙胆苦苷对骨关节炎大鼠的治疗作用。方法:Wistar大鼠关节腔内注射造模剂造模,抽检确定造模成功后,将造模大鼠分为模型组、双醋瑞因(9 mg/kg)阳性对照组及龙胆苦苷低、中、高(50、100、200 mg/kg)剂量组,另设正常对照组,每组10只。各组大鼠灌胃给药,10 m L/kg。4 w后处死动物,取胸腺、脾脏,计算脏器指数;取血测全血粘度;制备血清测定IL-1β、PGE2、COX-2、COX-1、NO含量;摘取膝关节,制作病理切片HE染色观察组织病理学改变。结果:与正常对照组比较,模型组大鼠胸腺指数显著升高(P<0.05),全血低、中、高切粘度显著升高(P<0.01),血清IL-1β、PGE2、NO、COX-2含量显著升高(P<0.05或P<0.01);与模型组比较,各给药组胸腺指数显著降低(P<0.05),全血粘度显著降低(P<0.01),血清中IL-1β、PGE2、NO、COX-2含量显著降低(P<0.05或P<0.01);病理切片显示,与正常对照组比较,模型组关节软骨细胞排列紊乱且明显增生,染色严重降低,各给药组关节软骨细胞排列紊乱,染色中度降低。结论:龙胆苦苷可通过降低全血粘度及血清中IL-1β、PGE2、NO、COX-2含量起到对大鼠骨关节炎的治疗作用。

基于变异系数权重的模糊物元模型评价黄管秦艽药材的质量

目的探讨基于变异系数权重的模糊物元模型在黄管秦艽质量评价中的运用。方法以甘肃省境内不同产地黄管秦艽药材中5种主要成分的含量为评价指标,运用基于变异系数权重的模糊物元模型对其质量进行综合评价。结果依据得到的贴近度值大小对10个样品质量进行划分与排序,以此评价黄管秦艽药材质量的优劣。结论基于变异系数权重的模糊物元模型可客观地、公正地评价黄管秦艽药材的质量。

甘肃不同产地黄管秦艽的紫外光谱结合主成分分析鉴别

目的建立甘肃不同产地黄管秦艽的紫外光谱鉴别方法。方法采用紫外光谱结合主成分分析法对不同产地黄管秦艽指纹图谱进行分析比较。结果不同产地黄管秦艽紫外指纹图谱具有指纹特性;主成分分析得分图反映出不同产地黄管秦艽对营养成分的积累具有差异,可以区分不同地黄管秦艽。结论紫外谱线组法简便、准确、灵敏,可用于鉴别区分不同产地黄管秦艽药材。