抗HBV核苷类似物的利用趋势分析

目的了解近年来抗HBV（乙型肝炎病毒）核苷类似物的利用趋势,为临床合理用药提供参考。方法根据医院网络系统,采用限定日剂量（DDD）、用药数量、金额及用药频度（DDDs）等指标,对四川省人民医院2008～2010年抗HBV核苷类似物的使用情况进行统计分析。结果抗HBV核苷类似物的使用数量和金额呈逐年上升趋势,其中阿德福韦酯和恩替卡韦的用量增幅较大,拉米夫定用量上升趋势变缓。结论抗HBV核苷类似物临床使用基本合理,拉米夫定和阿德福韦酯占主导地位,恩替卡韦有很好的应用前景。     

Nine new compounds from the whole plants of Rehmannia henryi

Eight new iridoids (1–8) and an ionone glucoside (9), together with 31 known compounds (10–40), were isolated from the whole plants of Rehmannia henryi. The structures of these compounds were elucidated on the basis of their spectroscopic data and chemical evidence.     

Two new lignan glucosides from the fruit of <Emphasis Type="Italic">Vitex cannabifolia</Emphasis>

Two new phenyldihydronaphthalene-type lignan glucosides, vitecannasides A (1) and B (2) were isolated from the fruit of Vitex cannabifolia Sieb. et. Zucc. (Verbenaceae) along with the six known lignan derivatives (3–8), four known iridoid glucosides (9–12), three known flavonoids (13–15), and one known phenylbutanone glucoside (16). Their chemical structures were determined on the basis of spectroscopic data as well as chemical evidence. The scavenging effect of 1, 2, and 11–16 on the stable free radical 1,1-diphenyl-2-picrylhydrazyl was examined. Compounds 1, 2, 14, and 15 exhibited stronger activity than that of l-cysteine. Especially, 14 and 15 showed more potent activity than that of α-tocopherol.     

A new stilbene glucoside gallate from the roots of Polygonum multiflorum

A new stilbenoid (1) was isolated from the root extract of Polygonum multiflorum together with eight known constituents (2∼9). The chemical structure of 1 was established as the 6″-O-monogalloyl ester of (E)-2,3,4′,5-β-tetrahydroxystilbene-2-β-D-glucopyranoside based on physicochemical and spectroscopic analyses, particularly by NMR spectroscopic data, i.e., COSY, HMQC and HMBC. Compound 1 weakly inhibited acetylcholinesterase in vitro.     

Nine new compounds from the whole plants of Rehmannia chingii

Nine new compounds, together with 16 known analogs, were isolated from the whole plants of Rehmannia chingii. The structures of compounds 1–9 were elucidated on the basis of their spectroscopic data and chemical evidence. In addition, the new compounds were tested for their hepatoprotective activities against APAP-induced HepG2 cell damage and their ability to inhibit LPS-induced nitric oxide production in the murine microglia BV2 cell line. Compounds 2 and 5 exhibited pronounced hepatoprotective activities against APAP-induced HepG2 cell damage at a concentration of 10 μM, and compounds 4 and 9 showed moderate inhibitory activity against microglial inflammation factor with IC₅₀ values of 3.51 and 7.11 μM, respectively.     

大花哥纳香碱Ⅰ的结构鉴定

目的：研究云南西双版纳的大花哥纳香(Goniothalamus griffithii Hook.f.et Thoms)茎皮的化学成分。方法：采用各种色谱技术进行分离,用IR,UV,MS,¹HNMR,¹³CNMR光谱鉴定化合物。 结果：得到2个化合物,分析鉴定为:10-氨基-4-羟基-3,8-二甲氧基菲-1-羧酸内酰胺(Ⅰ),命名为大花哥纳香碱Ⅰ;3,4,5-三甲氧基苯-1-O-β-D-葡吡喃糖苷(Ⅱ)。结论：Ⅰ为新化合物,Ⅱ为首次从该植物中分离得到。     

基于网络药理学和体外实验研究苔黑酚葡萄糖苷治疗骨质疏松的分子机制

目的:基于网络药理学预测苔黑酚葡萄糖苷(OG)治疗骨质疏松的作用靶点及相关信号通路,应用分子对接和体外实验验证,从而揭示其潜在作用机制.方法:通过Similarity ensemble approach(SEA),SwissTargetPrediction数据库获取OG药物靶点;通过疾病相关的基因与突变位点数据库(Di...     

固相萃取-HPLC同时测定润燥止痒胶囊中苦参碱和二苯乙烯苷的含量

目的:建立润燥止痒胶囊中苦参碱和二苯乙烯苷的含量测定方法。方法:采用固相萃取-HPLC,色谱柱为XTerraRP18(3.9 mm×150 mm,5μm),流速1.0 mL·min-1,乙腈-水(20∶80)为流动相,检测波长为320 nm。结果:苦参碱的线性范围为0.302 6～1.513 g·L-1,r=0.999 7,平均回收率为98.65%,RSD 1.90%(n=6);二苯乙烯苷的线性范围为1.048～8.384 mg·L-1,r=0.999 5,平均回收率为97.45%,RSD 1.89%(n=6)。结论:方法简便、快速、准确,适合该胶囊中苦参碱和二苯乙烯苷的含量测定。     

HPLC法测定前列安通片的芍药苷的含量

建立前列安通片中芍药苷的含量测定方法.采用高效液相色谱法,流动相以乙腈-水（13∶87）,选择230nm作为本品含量测定的检测波长,盐酸麻黄碱呈良好线性关系在范围2.0008～10.004μg内,平均回收率为96.83%,本法快速,准确,可操作性强.     

RP-HPLC法测定心可宁胶囊中人参皂苷Rg1、Rb1的含量

目的：建立RP-HPLC法测定心可宁胶囊中人参皂苷Rg1、Rb1含量的方法。方法：采用Shimadzu VP-ODS（4.6 mm×150 mm,5μm）色谱柱,流动相为乙腈-水（采用梯度洗脱的方式：0～40 min,19%乙腈;40～90 min,19%～45%乙腈）,检测波长为203 nm。结果：人参皂苷Rg1、Rb1的线性范围分别为0.04～0.12、0.08～0.24 mg/ml;平均加样回收率分别为99.87%、99.71%。结论：本法简便、准确、分离效果好,适合于心可宁胶囊人参皂苷Rg1、Rb1的含量测定。