Network pharmacology-based pharmacological mechanism prediction on Eucommia ulmoides against rheumatoid arthritis

Rheumatoid arthritis (RA) is a common chronic autoimmune disease characterized by synovial inflammation and progressive joint destruction. Eucommia ulmoides (EU) is a kidney-tonifying Chinese medicine that has been applied to treat RA for decides. The present study aims to explore pharmacological mechanisms of EU against RA using network pharmacology approach. Traditional Chinese Medicine Systems Pharmacology (TCMSP) database was used to screen active ingredients of EU, and their relative targets were fished from UniProt database. RA-related targets were screened from GeneCards database and DisGeNET database. The overlapping genes between EU and RA were identified by Venn diagram, and further analyzed for protein-protein interaction (PPI), Gene Ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG). Fifty active ingredients were identified in EU, and corresponded to 207 targets. Meanwhile, 499 targets were closely associated with RA development. A total of 50 overlapping genes between EU and RA were identified, which were regarded as therapeutically relevant. GO enrichment analysis indicated that EU exerted antiRA effects depending on regulating multiple biological processes including inflammatory response, oxidative stress, cell apoptosis and matrix catabolism. Several key pathways such as TNF pathway, IL-17 pathway, T cell receptor pathway, NOD-like receptor pathway and Toll-like receptor pathway, were involved in the above biological processes. Network pharmacology revealed that EU exerts therapeutic effects on RA through multi-ingredients, multi-targets and multi-pathways, which provides basis for its clinical application and promising directions for subsequent research.     

氨茶碱联合黄芪治疗病毒性心肌炎致难治性缓慢心律失常的临床观察

目的 探讨快速静滴氨茶碱联合口服黄芪治疗病毒性心肌炎合并缓慢性心律失常的临床意义。方法 对1990年3月～2000年3月的心动过缓患者36例,在提高心室率、心肌缺血性改变和临床症状改善,进行心电图、超声心动图和阿托品运动试验前后比较。结果 发现氨茶碱组总有效率达91.7％,与对照组比较有显著性差异(P<0.01)。结论 氨茶碱和黄芪具有起效快、易接受的优点,特别对老年人及Adamo-Stores综合征可免戴心脏起搏器,是临床简易有效的治疗方法。     

固相微萃取-气质联用法分析浅裂鳞毛蕨挥发性成分

摘 要 目的： 研究浅裂鳞毛蕨的挥发性成分。方法: 采用气相色谱 质谱联用技术首次对浅裂鳞毛蕨的挥发性成分进行分析和鉴定。结果: 从浅裂鳞毛蕨根中鉴定了28个化合物,占根中挥发性成分的86.84%,从叶中鉴定了24个化合物,占叶中挥发性成分的82.79%。结论: 正壬醛有可能是浅裂鳞毛蕨叶中的主要香气成分,丁羟基甲苯和石竹烯有可能是浅裂鳞毛蕨中的药效成分。     

Chemical constituents from Amentotaxus yunnanensis and Torreyayunnanensis

In a chemical study of taxonomically related Taxaceae plants of Yunnan Province, China, seven compounds, including a new amentoflavone biflavonoid, 2,3-dihydro-7,7' '-dimethoxyamentoflavone (1), were isolated from Amentotaxus yunnanensis, and 12 isolates were obtained from Torreya yunnanensis. From the latter plant, a new abietane diterpene, torreyayunnin (7), is reported for the first time. The known isolates from A. yunnanensis have been identified as sequoiaflavone (3), sotetsuflavone (4), 7,7' '-dimethoxyamentoflavone (5), lutein, beta-sitosterol, and sequoyitol. Amentoflavone (2), sotetsuflavone (4), sciadopitysin (6), 12-hydroxydehydroabietinol, meridinol, balanophonin, (+)-pinoresinol monomethyl ether, (+)-pinoresinol monomethyl ether glucoside, erythro-1-(4-hydroxy-3-methoxyphenyl)-2-[4-[2-formyl-(E)-vinyl]-2- methoxyphenoxy]propane-1,3-diol, threo-1-(4-hydroxy-3-methoxyphenyl)-2- [4-[2-formyl-(E)-vinyl]-2-methoxyphenoxy] propane-1,3-diol, and (E)-2-butenedioic acid were identified as known isolates from T. yunnanensis. The presence of the amentoflavone biflavonoids (1, 3-5) in A. yunnanensis supports its placement in the Taxaceae. The occurrence of the biflavonoid sotetsuflavone (4) in both A. yunnanensis and T. yunnanensis suggests that these two genera are closely related. The identification and structural elucidation of these isolates were based on spectral data analysis including 1D and 2D NMR.     

西红花酸改善大鼠酒精性脂肪肝作用机制研究

目的研究西红花酸对酒精性脂肪肝大鼠的作用及其机制。方法将30只雄性SD大鼠随机分为健康对照组、模型组及西红花酸组,每组各10只。模型组及西红花组大鼠均行酒精性脂肪肝造模,同时西红花酸组予西红花酸50mg／（kg·d）灌胃预防性治疗。比较3组大鼠血清丙氨酸氨基转移酶（ALT）、甘油三酯（TG）水平及肝脏极低密度脂蛋白（VLDL）分泌速率,肝脏TG、游离脂肪酸（FFA）含量,肝脏脂肪酸线粒体β-氧化速率及脂肪酸过氧化物酶体β-氧化速率,苯胺羟化酶（ANH）、乙醇脱氢酶（ADH）及乙醛脱氢酶（ALDH）活性,肝脏超氧化物歧化酶（SOD）活性、谷胱甘肽（GSH）含量及丙二醛（MDA）含量。结果模型组与西红花酸组大鼠血清ALT和TG含量、肝脏TG和FFA含量、肝质量系数均高于健康对照组（P〈0．01,P〈0．05）,而西红花酸组均低于模型组（P〈0．01,P〈0．05）;模型组及西红花酸组大鼠肝脏脂肪酸线粒体β-氧化速率、过氧化物酶体β-氧化速率和VLDL分泌速率均低于健康对照组（P〈0．05,P〈0．01）,且西红花酸组脂肪酸线粒体β-氧化速率高于模型组（P〈0．05）;与健康对照组比较,模型组ANH活性及MDA含量升高（P〈0．05）,ADH、ALDH、SOD活性及GSH含量降低（P〈0．01）,而西红花酸组ANH活性及MDA含量较模型组降低（P〈0．05）,ADH、ALDH、SOD活性及GSH含量升高（P〈0．05）。结论西红花酸对酒精性脂肪肝有改善作用,其作用机制可能是通过加速肝脏线粒体脂肪酸氧化,增强血浆中TG消除速度,减轻肝脏脂肪堆积,增强ALDH活性,进而加速乙醇和乙醛的清除。     

焦磷酸测序用于COL1A1基因多态性与骨肉瘤易感性关系分析

目的观察骨肉瘤患者Ⅰ型胶原α1(COL1A1)基因多态性,探讨骨肉瘤与COL1A1基因多态性的相关性。方法收集骨肉瘤以及正常患者外周血样本,应用焦磷酸测序方法(Pyrosequencing)对54例骨肉瘤患者与126例健康对照者COL1A1基因rs1061970位点进行分析。结果 54例骨肉瘤患者COL1A1rs1061970位点基因型频率中,TT(13.0%)和CT(48.1%)要显著高于正常对照组TT基因型频率11.9%及CT等位基因频率30.2%(P<0.05),骨肉瘤患者组中T等位基因的频率为37.0%,高于对照组的27.0%,OR为1.59,95%CI 0.99~2.57,差异无统计学意义(P>0.05),但是骨肉瘤的发病风险仍呈上升趋势。结论 COL1A1基因多态性与骨肉瘤的发生具有相关性,携带COL1A基因T等位基因的发生骨肉瘤的风险增高。     

消炎解毒丸质量标准的研究

目的 建立消炎解毒丸的质量标准,为本产品提供完善、可控的质量标准.方法 采用薄层色谱法鉴别消炎解毒丸中的金银花、防风、连翘、甘草;采用HPLC法测定咖啡酸质量分数,色谱柱为DIKMADiamonsil C18柱(250 mm×4.6 mm,5μm),流动相为甲醇-磷酸缓冲盐(体积比23∶77),检测波长为323nm,柱温为40℃.结果 在薄层色谱中检出金银花、防风、连翘、甘草,各药材薄层色谱斑点清晰,阴性无干扰;HPLC法测定中咖啡酸在0.031 2～0.780 0 μg范围内线性关系良好(r=0.999 95),平均回收率为99.52％,RSD值为1.53％(n=6).结论 本方法快速、简便、精密度好、灵敏度高,提高了消炎解毒丸的质量控制标准.     

一次性胃管包的研制与临床应用

目的:探讨一次性胃管包用于胃肠破裂患者治疗中的效果.方法:将60例胃肠破裂患/者随机分为观察组与对照组各30例,观察组采用自制一次性胃管包,对照组采用传统的置胃管前准备方法,观察对比两种方法的效果.结果:两组置胃管前准备时间、患者信任度、患者紧张情况、急救时间以及急救成功率的比较均有极显著性差异(P＜0.01);两组患者满意度比较有显著性差异(P＜0.05).结论:使用一次性胃管包为患者置胃管时方便、快捷、安全,可消除患者紧张情绪,提高患者的满意度及信任度,缓解护患矛盾,降低医疗纠纷,同时减少并发症的发生,提高急救成功率.     

血袋保养液在抗-HCV酶免试剂应用中的影响

目的了解血袋内装保养液在国产抗-HCV酶免试剂应用中,对检测结果的影响程度。方法取效期内使用的CPDA血袋保养液按1:7比例混合抗-HCV低值阳性血清,在同一微板、同样加样手法条件下,平行做未稀释血清、稀释后血清、血袋保养液各20孔,重复及对照试验各做3孔。结果血袋保养液对抗-HCV检测结果本底无影响,对低值阳性血清即弱阳性标本影响较大,在一定范围内可造成结果的漏检。结论采集血液后留取血样标本或重验标本,应考虑到有无血袋内装保养液或其它溶液的影响,以减少结果的不准确性。