人睫状神经营养因子结构和功能的研究

制备高活性的重组人睫状神经营养因子，并研究其生物学功能。方法：应用大肠杆菌表达ｈＣＮＴＦ，用片段插入和法研究其结构与功能关系；切断大鼠骨神经，局部及皮下给予ＣＮＴＦ，应用辣根过氧化物酶逆行追踪技术显示再生轴突通过修复部位的胞体。结果；ｈＣＮＴＦ分子中α－螺旋结构的维持对其生物活性十分重要Ｃ端松散地其生物活性贡献不大，Ｄ螺旋中后段可能与生物活性有密切关系；     

A Clinical Study of Reversing Left Ventricular Hypertrophy in Hypertensive Patients by Adalat

ＡＣｌｉｎｉｃａｌＳｔｕｄｙｏｆＲｅｖｅｒｓｉｎｇＬｅｆｔＶｅｎｔｒｉｃｕｌａｒＨｙｐｅｒｔｒｏｐｈｙｉｎＨｙｐｅｒｔｅｎｓｉｖｅＰａｔｉｅｎｔｓｂｙＡｄａｌａｔＺｈａｎｇＦｕｍｉｎ（张馥敏）ＸｕＤｉ（许迪）ＹｏｎｇＹｏｎｇｈｏｎｇ（雍永宏）Ｃｈｅｎ...     

心脏微循环血管的扫描电镜观察Ⅰ.心脏血管球

应用血管铸型、扫描电镜观察方法，研究了２例成人及１例儿童的左冠状动脉前降支中段心肌浅层及其周围的脂肪组织内的心脏血管球的三维构筑。根据形态特点，将心脏血管球分为圆球型、柱型、多角型、捆绑型、绒团型及鸭梨型，并对各型心脏血管球的形态结构特点进行了描述，且阐述了这些心脏血管球的临床意义。     

溴氰菊酯对白纹伊蚊（Aedesalbopictus）C6／36细胞株的细胞遗传学效应

本研究选择１０μｇ／ｍｌ、２０μｇ／ｍｌ、４０μｇ／ｍｌ浓度的溴氰菊酯处理白纹伊蚊Ｃ６／３６细胞，以ＭＭＣ作为阳性对照物，观察溴氰菊酯处理２４ｈ后对Ｃ６／３６细胞染色体畸变率和姐妹染色单体互换（ＳＣＥ）频率的影响。结果显示，三个浓度的溴氰菊酯对Ｃ６／３６细胞染色体畸变率均没有显著影响（Ｐ＜０．０５）；溴氰菊酯浓度在４０μｇ／ｍｌ时可诱导Ｃ６／３６细胞ＳＣＥ频率轻度增高（Ｐ＞０．０５），而溴氰菊酯浓度在１０μｇ／ｍｌ、２０μｇ／ｍｌ时，对Ｃ６／３６细胞ＳＣＥ频率没有诱导作用。表明溴氰菊酯对Ｃ６／３６细胞的遗传学效应较弱     

雌二醇周效贴片166例疗效观察

本研究观察国产雌二醇周效贴片（Ｅ２贴片）治疗因卵巢功能低落所致的主要临床表现的疗效，结合血ＦＳＨ、ＬＨ、Ｅ２测定，阴道脱落细胞成熟指数和部分病例的子宫内膜活检，对Ｅ２贴片的疗效进行了综合评价。结果显示，雌二醇周效贴片对卵巢功能低落所致的潮热、出汗、失眠、情绪波动，眩晕和阴道干涩等有显著疗效，且疗效随用药时间的延长而递增，在用药１４０天时总有效率分别达９８．９％，９２．０％、９１．４％、９０．０％和７８．０％，对ＬＨ、ＦＳＨ的释放有抑制作用；血清Ｅ２水平属轻度升高，但趋于平稳；部分病例子宫内膜组织学检查未见雌激素作用所致的内膜增殖效应。用药期间部分病例出现周期性阴道出血，这对年轻卵巢功能早哀者在生理和心理上均有治疗意义，但对更年期患者会造成不便和不安感。约２０％的病例贴片局部有轻微痒感，无其它不良反应。     

111例双黄连过敏反应文献分析

目的:分析临床应用双黄连引致的过敏反应的规律。方法:对2000年1月-2004年3月中国期刊网中收录的111例双黄连过敏反应在性别、年龄、发生时间、给药途径和临床表现进行分析。结果:双黄连过敏与年龄、性别无关,与给药途径有关,注射剂易发生过敏反应。该药过敏的临床表现有:过敏性休克67例(60%),皮肤黏膜症状61例(55%),其他类型过敏反应14例(13%)31例同时出现多种过敏症状。过敏发生时间最短为开始用药1m in以内,最长为用药后72h,97例(87%)在用药过程中发生过敏症状。结论:双黄连的过敏反应以速发型过敏反应(如过敏性休克)为主,应是临床关注的重点。     

Reversal of ischemic liver failure by intrasplenic liver cell transplantation

A model of ischemic hepatic failure in Sprague-Dawley rats (SD) with 100% mortality has been developed by one-hour occlusion of the right portal vein and hepatic artery followed by left 70% hepatectomy. The intrasplenic injection of 40 x 10(6) syngeneic adult or three-day neonatal single liver cell suspensions decreased the mortality from 100% to 50% and 36%, respectively. Mortality decreased with increasing time from the intrasplenic injection of neonatal liver cells to the time of acute hepatic ischemia. Mortality also decreased with increasing interval between hepatic ischemia and removal of the transplanted liver cells by splenectomy. Intrasplenic injection of graded doses of neonatal liver cells decreased mortality from 75% at a dose of 10 x 10(6) cells, to 36% at 160 x 10(6) cells. Treatment of neonatal liver cells with metabolic inhibitors did not significantly affect their ability to reverse acute hepatic ischemia.     

Clinical and hormonal effects of chronic gonadotropin-releasing hormone agonist treatment in polycystic ovarian disease

Previously, we reported that short term administration of a highly potent GnRH agonist (GnRHa) for 1 month to patients with polycystic ovarian disease (PCO) resulted in complete suppression of ovarian steroidogenesis without measurable effects on adrenal steroid production. This new study was designed to evaluate the effects of long term GnRHa administration in PCO patients with respect to their hormone secretion patterns and clinical responses. Eight PCO patients and 10 ovulatory women with endometriosis were treated daily with sc injections of [D-His6-(imBzl]),Pro9-NEt]GnRH (GnRHa; 100 micrograms) for 6 months. Their results were compared to hormone values in 8 women who had undergone bilateral oophorectomies. In response to GnRHa, PCO and ovulatory women had rises of serum LH at 1 month, after which it gradually declined to baseline. In both groups FSH secretion was suppressed throughout treatment. Serum estradiol, estrone, progesterone, 17-hydroxyprogesterone, androstenedione, and testosterone levels markedly decreased to values found in oophorectomized women by 1 month and remained low thereafter. In contrast, serum pregnenolone and 17-hydroxypregnenolone were partially suppressed, and dehydroepiandrosterone, dehydroepiandrosterone sulfate, and cortisol levels did not change. Clinically, hyperplastic endometrial histology in three PCO patients reverted to an inactive pattern, and proliferative endometrium in two other PCO patients became inactive in one and did not change in the other. Regression of proliferative endometrial histology occurred in all ovulatory women. Vaginal bleeding occurred in all women studied during the first month of GnRHa administration, after which all but one PCO patient became amenorrheic. Hot flashes were noted by all ovulatory women and by four of eight PCO patients. All PCO patients noted subjective reduction of skin oiliness, and five had decreased hair growth. We conclude that in premenopausal women: 1) chronic GnRHa administration results in apparently complete persistent suppression of ovarian steroid secretion; 2) adrenal steroid secretion is not influenced directly or indirectly; and 3) its use may be helpful in the treatment of endometrial hyperplasia and ovarian androgen excess in women with PCO.     

精索静脉曲张患者精索静脉和外周血睾酮水平的对照研究

目的：探讨精索静脉血张患者血浆睾酮水平的变化及其机制。方法：对25例精索静脉曲张患者与22例腹股沟斜疝患者精索静脉和外周血睾酮水平进行对照研究。结果：精索静脉曲张组外周血睾酮浓度与腹股沟斜疝组无差别（P＞0．05），而精索静脉血睾酮浓度两组则有明显差异，精索静脉曲张组精索静脉血中睾酮浓度较腹股沟斜疝组低（P＜0．05）。结论：多种因素可影响外周血睾酮浓度，使其难以准确地反映睾丸分泌睾酮的实际水平，而精索静脉血中的睾酮浓度则能较为直接地反映睾丸的睾酮分泌能力。