基于转录组测序分析干旱胁迫对党参不同组织基因表达的调控

目的 对不同干旱胁迫程度下党参Codonopsispilosula叶、茎、根进行转录组测序，探究干旱胁迫对党参差异基因和多糖合成相关酶基因的调控。方法 利用Illumina HiSeq 2500高通量测序技术对正常水分（85%～90%）和轻度（65%～70%）、中度（50%～55%）、重度干旱胁迫（35%～40%）下生长旺盛期党参叶、茎、根组织进行测序并建立c DNA数据库，经de novo拼接后得到Unigene，并进一步开展生物信息学分析。结果 共获得Unigene 60 377条，分别有51 477、29 896、33 479、35 912、47 378、18 649、31 833条被非冗余数据库（non-redundant protein sequence database,NR）、真核生物蛋白相邻类的聚簇（clusters of orthologous group for eukaryotic complete,KOG）、基因本体（gene ontology,GO）、Swiss-Prot、egg NOG、京都基因与基因组数据库（Kyoto encyclopedia of ge...     

The comparison of antioxidative and hepatoprotective activities of Codonopsis pilosula polysaccharide (CP) and sulfated CP

Codonopsis pilosula polysaccharide (CP) was extracted, purified and modified by chlorosulfonic acid-pyridine method to obtain a sulfated CP (sCP). Their antioxidative activities in vitro were compared through the free radical-scavenging test. The results demonstrated that the scavenging capabilities of sCP were significantly stronger than those of CP. In vivo test, the mice hepatic injury model was prepared by BCG/LPS method, then administrated respectively with sCP and CP at three dosages, the biochemical indexes in serum, antioxidative indexes in liver homogenate and histopathological change in liver of the mice were compared. The results showed that in high (200 mg/kg) and middle (150 mg/kg) dosages of sCP groups, the contents of ALT, AST and TNF-α in serum and MDA in liver homogenate were significantly lower than those in the model group and numerically lower than those in the CP groups, the activities of SOD and GSH-Px in liver homogenate were significantly higher than those in the model group and numerically higher than those in the CP groups. In the model group there were obvious pathological changes in the liver, while in the sCP groups were near normal. These results indicate that sCP and CP possess antioxidative activity in vitro and in vivo, the activity of sCP is stronger than that of CP and sulfation modification can enhance the antioxidative and hepatoprotective activities of Codonopsis pilosula polysaccharide.     

Comparative study on WHO Western Pacific Region and World Federation of Chinese Medicine Societies international standard terminologies on traditional medicine: Diseases of Gynecology and Obstetrics (Part 3)

<正>The following is a brief analysis of 22 terms related to gynecology and obstetrics in traditional Chinese medicine(TCM)included in the WHO International Standard Terminologies on Traditi onal Medicine in the Western Pacific Region(abbreviated as the WPRO Standard)[1]and the International Standard Chinese-English Basic Nomenclature of Chinese Medicine compiled by the World Federation of Chinese Medicine Societies(abbreviated as the WFCMS Standard)[2],according to explanations made in the book     

基于数据挖掘技术研究中医治疗腔隙性脑梗死的组方配伍规律

目的 采用数据挖掘技术全面总结中医治疗腔隙性脑梗死的用药规律。方法 通过收集中国知网、维普中文期刊服务平台、万方数据库、中国生物医学文献服务系统建库至2020年5月31日发表的中医治疗腔隙性脑梗死的相关文献，采用中医传承辅助平台（TCMISS V 2.5）统计用药频次及性味归经、常用药对及药物组合，采用关联规则、改进的互信息法、复杂系统熵聚类分析对药物关联规则及核心药物组合进行分析，采用无监督的熵层次聚类进行新处方分析。结果 共筛选出符合条件的方剂231首，涉及中药242味，使用频次较高中药有川芎、丹参、黄芪、地龙等41味，其四气主要集中在温、寒、平，五味主要集中在甘（淡）、苦、辛，归经主要集中在肝、脾、肺经；挖掘共得到高频药物组合48个，出现频次前6位的组合是川芎-黄芪、川芎-地龙、川芎-当归、丹参-地龙、黄芪-地龙及川芎-丹参；演化共得到核心药物组合16组，潜在新处方8个。结论 中医治疗腔隙性脑梗死的整体治则以补气化瘀通络为主。     

Emodin inhibits human sperm functions by reducing sperm [Ca2+]i and tyrosine phosphorylation

Emodin, a bioactive anthraquinone widely used in Chinese traditional medicine, disrupts mouse testicular gene expression in vivo. In this study, we investigated the toxicity of emodin to human sperm in vitro. Different doses of emodin (25, 50, 100, 200 and 400 μM) were applied to ejaculated human sperm. The results indicated that 100, 200 and 400 μM emodin significantly inhibited the total motility, progressive motility and linear velocity of human sperm. In addition, sperm's ability to penetrate viscous medium together with progesterone induced capacitation and acrosome reaction was also adversely affected by emodin. In contrast, emodin did not affect sperm viability. Furthermore, intracellular Ca²⁺ concentration ([Ca²⁺]_i) and tyrosine phosphorylation, which serve as key regulators of sperm function, were dose-dependently reduced by emodin (50–400 μM). These results suggest that emodin inhibits human sperm functions by reducing sperm [Ca²⁺]_i and suppressing tyrosine phosphorylation in vitro.     

当归肌动蛋白基因片段的克隆及序列分析

目的 对当归肌动蛋白(Actin)基因进行克隆及序列分析.方法 根据已经克隆的植物Actin基因的保守序列设计一对简并性引物,以当归根部总RNA为模板,采用RT-PCR方法扩增Actin基因片段并连接到pMD19-T载体上,阳性克隆经PCR检测后进行测序.结果 得到一段598 bp的序列,序列分析表明,该片段编码198个氨基酸,与高等植物Actin基因核苷酸序列同源性在83％以上,与其他肌动蛋白氨基酸序列同源性达94％以上.结论 首次从当归中克隆出了Actin基因,为有效利用该基因奠定了基础.     

HPLC梯度波长法同时测定甘肃省不同产地甘草中6种成分含量及主成分分析研究△

目的:建立HPLC同时测定甘草中甘草苷、甘草素、异甘草素、甘草查尔酮A、甘草酸和甘草次酸含量的方法,应用主成分分析识别甘草的质量。方法:以乙腈-0.1%的磷酸水溶液进行流动相梯度洗脱,梯度波长采集法,柱温为室温,流量0.6mL·min-1;用spss17.0软件对数据进行分析。结果:色谱峰分离效果良好,甘草苷、甘草素、甘草酸铵、异甘草素、甘草查尔酮A和甘草次酸在各自浓度范围内均具有良好的线性关系。主成分分析对不同产地的样品排序结果与传统评价基本相符合。结论:本实验建立的HPLC同时测定黄酮类、三萜类成分的含量方法准确、简便,可作为甘草质量控制的方法之一。     

板蓝根中3种核苷成分的多波长HPLC测定及主成分分析

目的建立HPLC同时测定板蓝根药材中3种核苷的方法,比较各地板蓝根的质量。方法以乙腈、水为流动相梯度洗脱,在不同波长下检测,柱温为室温,体积流量0.6 mL/min。结果鸟苷线性方程y=7×10-6x-0.003 3,r=0.999 5,线性范围为4.556～56.95μg/mL;尿苷线性方程y=1×10-6x+0.032 6,r=0.999 9,线性范围为5.58～73.51μg/mL;腺苷线性方程y=5×10-7x+0.022 1,r=1,线性范围为5.75～71.34μg/mL;含鸟苷量在0.005%～0.194%,含尿苷量在0.035%～0.082%,含腺苷量在0.009%～0.086%。结论本方法准确、简便、快速,可作为板蓝根药材及饮片质量控制的方法之一。     

药食同源中药党参的研究进展

党参Codonopsis Radix是具有健脾益肺、养血生津之效的药食同源中药。有丰富的化学成分以及药理活性,具有保护神经、保护肠胃、保护心血管、调血脂、降血糖、抗衰老、抗氧化、抗肿瘤以及免疫调节等作用。常作为药膳以及保健品使用,在药品上也应用广泛,如复方党参片、生脉饮等,具有很高的药用价值和经济价值。通过对党参的本草考证、化学成分、药理活性、药食两用等多个方面进行概述,对其应用现状进行分析,为党参的可持续发展、药食同源开发和综合利用奠定理论基础。     

赤芍不同提取物抑制ras突变的肿瘤活性谱效关系研究

目的： 建立赤芍不同提取部位高效液相色谱（HPLC）指纹图谱,探讨其抑制ras突变肿瘤活性的谱效关系,为明确其抗肿瘤作用及物质基础提供参考。方法： 分别用石油醚、醋酸乙酯、正丁醇对赤芍水煎液进行萃取,并采用HPLC法对提取物进行分析,建立色谱图;采用秀丽隐杆线虫检测各有效部位的急性毒性及抗肿瘤活性;采用偏最小二乘（PLS）回归分析研究其谱效关系。结果： 赤芍醋酸乙酯部位的急性毒性高于正丁醇部位和石油醚部位;赤芍3个部位均不同程度地提高了线虫的野生型比例,且正丁醇部位效果最好;谱效关系研究表明,色谱峰7、5（芍药苷）、1所对应化合物对抑制ras突变的肿瘤活性有重要作用。结论： 赤芍抑制ras突变的抗肿瘤活性是多种化学成分共同作用的结果,为赤芍作为抗肿瘤药物的开发研究提供了一定思路。