Proximal fallopian tube occlusion: diagnosis and treatment with transcervical fallopian tube catheterization

Transcervical fallopian tube catheterization (TFTC) was performed in 22 infertile patients with bilateral fallopian tube obstruction and a mean duration of infertility of 3.3 years. A high prevalence of previous ectopic pregnancy (n = 8, 36%), tubal ligation and/or reconstruction (n = 5, 23%), spontaneous or therapeutic abortion (n = 6, 27%), and previous intrauterine device use (n = 14, 64%) was noted. The authors successfully catheterized 40 (98%) of 41 tubes without serious complication and visualized the distal tube in 36 (88%) of 41 tubes. Free spill in at least one tube was seen in 17 (77%) of 22 patients. Nineteen patients had a history of previous laparoscopy or laparotomy for tubal disease, in 16 of whom laparoscopic results were available for review. Retrospectively, in 15 (94%) of 16 patients all clinically relevant abnormalities would have been detected by means of TFTC alone. Five patients conceived, three with intrauterine and two with ectopic pregnancies. Patients with intrauterine pregnancies had normal-appearing tubes after TFTC, while those with ectopic pregnancies had residual tubal abnormalities after recanalization. TFTC is a safe, accurate diagnostic procedure that provides more information than hysterosalpingography and, in most cases, as much or more information about the fallopian tubes than laparoscopy.     

黄甘草异黄酮成分的研究

从黄甘草(Glycyrrhiza eurycarpa P.C.Li)根及根茎中分得五个异黄酮化合物,根据理化性质及光谱(UV,MS,¹HNMR,¹³CNMR,NOE,HMBC)数据分析,化合物I的结构推定为7,2′,4′-三羟基-3′-异戊烯基异黄酮,为一新化合物,命名为黄甘草异黄酮A(eurycarpinA)。化合物I的结构推定为7,2′-二羟基-(2″,3″∶4′,3′)-6″,6″-二甲基吡喃异黄酮,为一新的天然产物,命名为黄甘草异黄酮B(eurycarpinB)。其余化合物分别鉴定为 licoisoflavone A(III),毛蕊异黄酮(calycosin,IV)和芒柄花素(formononetin,V)。化合物II～V均为首次从本植物中得到。     

有关中药黄芪药理研究的若干问题的探讨

1原文研究要点 作者为了研究中药黄芪(AMB)提取物对体外培养的肝癌细胞的抑制活性,将ANMB经粉碎、浸提、超速离心、减压浓缩、冷冻干燥得到AMB提取物.然后,以AMB提取物按不同时间处理人肝癌SMMC-7721细胞,再以MTT法检测其对人肝癌SMMC-7721细胞线粒体代谢活性的影响,以细胞记数法观察了其对细胞增殖的影响.     

三七中人参三醇甙抗心律失常作用的研究

三七三醇甙(PTS)为三七的组分之一,能明显对抗乌头碱、BaCl_2和肾上腺素诱发的实验性心律失常。PTS减慢大鼠心率,延长P-R和Q-Tc间期;减慢离体豚鼠右房自发频率;使异丙肾上腺素加速右房自发频率的量效-曲线右移并抑制最大效应。PTS与胺碘达隆作用相似,使离体豚鼠乳头状肌细胞电位APD和ERP显著延长,2相复极化斜率降低。PTS对上述动作电位的影响呈剂量依赖性关系。     

粗毛淫羊藿甙的分离和结构

粗毛淫羊藿Epimedium acuminatum Franch为小檗科植物,又名尖叶淫羊藿,分布于四川、云南、贵州和湖北,在当地作淫羊藿药用。对粗毛淫羊藿的化学成分研究尚未见报道。本文报道从四川产粗毛淫羊藿的地上部分分离到五个化合物并进行了结构研究。     

滇黄芩中滇黄芩新素的结构研究

前已报道自四川产滇黄芩Scutellaria,amoena C.H.Wright中分离出五种黄酮成分和从云南产的中得到另八个黄酮类化合物。本文继续报道从云南产滇黄芩中得到的六个化合物和从四川产本种植物中得到一个黄酮化合物的结构鉴定。