甲氧基红霉素对卡马西平药物动力学的影响

应用荧光偏振免疫法，测定６只家兔ｐｏ卡马西平及连续多次ｐｏ用搓甲氧基红霉素后ｐｏ卡马西平的血清卡马西平浓度，用３ｐ８７程序包按二室模型对数据进行处理并进行统计学分析。     

深静脉血栓和肺栓塞的诊断进展

目的静脉血栓栓塞事件的诊断,必须兼顾敏感性和特异性,在血栓存在时正确诊断,同时在血栓不存在时要安全地除外血栓。本综述回顾了静脉血栓栓塞事件诊断策略的最新研究。     

Comparative observation of protective effects of earplug and barrel on auditory organs of guinea pigs exposed to experimental blast underpressure

Objective: To explore the protective effects of earplug and barrel on auditory organs of guinea pigs exposed to experimental blast underpressure (BUP). Methods : The hearing thresholds of the guinea pigs were assessed with auditory brainstem responses ( ABR). The traumatic levels of tympanic membrane and ossicular chain were observed under stereo-microscope. The rate of outer hair cells (OHCs) loss was analyzed using a light microscope. The changes of guinea pigs protected with barrel and earplug were compared with those of the control group without any protection. Results: An important ABR threshold shift of the guinea pigs without any protection was detected from 8h to 14d after being exposed to BUP with a peak ranging from -64.5 kPa to -69.3 kPa (P<0.01). The rate of perforation of tympanic membrane reached 87.5 % and that of total OHCs loss was 19.46%±5.38% at 14d after exposure. The guinea pigs protected with barrel and earplug had lower ABR threshold and total OHCs loss rate compared with the animals without any protection (P<0.01). All of the tympanic membrane and ossicular chain of the protected animals maintained their integrities. Meanwhile, the guinea pigs protected with the barrel had lower ABR threshold and total OHCs loss rate than those with earplug (P<0.01). Conclusions: The earplug and barrel have protective effects against BUP-induced trauma on auditory organs of the guinea pigs and the protective effects of barrel are better than those of earplug.     

重组生长激素对腹部大手术患者血浆蛋白的影响

目的研究重组人生长激素（rhGH）对腹部大手术患者术后代谢、免疫功能和术后并发症的影响。方法回顾性分析腹部大手术患者79人，其中37人为治疗组，42人为对照组。治疗组手术后第2天开始，每天皮下注射思真（重组人生长激素，瑞士雪兰诺公司生产）8U，对照组给予安慰剂（生理盐水），共用7d；分别在治疗前，治疗后3、7、10、14d检测血浆白蛋白、前白蛋白及转铁蛋白水平。记录切口愈合情况及术后并发症情况。结果（1）治疗前，两组白蛋白、前白蛋白及转铁蛋白水平差异无统计学意义（P〉0．05）；治疗后3d，两组白蛋白水平差异无统计学意义（P〉0．05），且均低于治疗前；治疗组前白蛋白、转铁蛋白均高于对照组（P〈0．05）；治疗后7d，治疗组3项指标均高于对照组。（2）治疗组切口愈合情况明显优于对照组（P〈0.05）。（3）治疗组术后并发症发生率明显低于对照组（P〈0．05）。结论腹部大手术患者术后应用重组人生长激素可以提高免疫功能，促进切口愈合，减少术后并发症的发生。     

AO苜蓿叶形支撑钢板治疗Pilon骨折

目的总结使用AO苜蓿叶形钢板治疗Pilon骨折的经验。方法分析我科自1996年3月-2001年6月用该方法治疗的23例病人的治疗效果：按Ruedi-Allgower分型：其中Ⅱ型18例，Ⅲ型5例，均采用切开复位，AO苜蓿叶形钢板内固定术。结果治疗后，临床疗效优良率82．6％，其中Ⅱ型达88．8％，Ⅲ型达60％。结论AO苜蓿叶形钢板治疗Pilon骨折，具有骨折稳定性可靠，有利于骨折愈合和早期关节活动的优点，Ⅲ型骨折的治疗方法有待进一步探讨。     

Thiol-Proteindisulfide–Oxidoreductase (Proteindisulfide Isomerase): a New Plasma Membrane Constituent of Mature Human B Lymphocytes

The thiol-proteindisulfide–oxidoreductase (TPO. EC 1.8, 4.2, proteindisulfide isomerase, EC 5.3.4.1.) is known as an cytoplasmatic enzyme, and is thought to be involved in the post–translational folding of disulfide containing proteins. Using monoclonal and polyclonal antibodies the authors were able to prove that this enzyme or an unknown homologous protein is localized also to the plasma membrane of B lymphocytes. In peripheral blood from healthy donors 11% of the mononuclear cells (PBMNC) expressed this surface antigen whereas in PBMNC of patients with B–cell chronic lymphocytic leukaemia 76% of the MNC were positive. This value correlates well with the known B–cell markers CD19 and CD20. However, this antigen is different from all known clustered B–cell markers. Immunoprecipitation analysis of PHA–stimulated PBMNC and of cells from patients suffering from chronic lymphocytic leukaemia revealed a membrane protein with the same molecular weight (61 kDa) as the TPO. These data suggest that this enzyme is present not only in the cytoplasm but also on the surface of B cells and that it is possibly involved in the regulation of the SH-SS status of the cell membrane proteins of B lymphocytes.     

BIOEQUIVALENCE BETWEEN rhGH FOR RECONSTITUTION AND READY-TO-USE rhGH IN TWO LIQUID FORMULATIONS

Objective To evaluate the bioequivalence between recombinant human growth hormone （rhGH） for reconstitution, and two dosages of liquid formulation of rhGH [ （151U） 5mg or （301U） lOmg per 3ml ]. Methods The study drugs were tested in a randomized, single-blind and three-period crossover studies in 24 healthy male subjects. The three drugs were administered by subcutaneous injection at a dose of O. 21U/kg body weight. A continuous somatostatin infusion was given in order to suppress the secretion of endogenous GH. The ve- nous blood samples were drawn at different time points to test the serum concentration of GH. The pharmacokinetic parameters were analyzed by statistical methods. Results 90% confidence intervals （CI） of AUC0-24h among three products were all within 80% - 125% interval （ 103. 4% - 116. 5%, 105. 7% - 119. 6% and 91.9% - 103. 7%, respectively）, and the Cls of C,~ among three products were all within 70% - 143% interval （91.9% - 114. 0%, 103. 7% -127. 2% and 81.6% -97. 4%, respectively）. There was no statisitical difference of tmax among all the three products. Conclusion These data demonstrate that there is bioequivalence between rhGH for reconstitution and two liquid formulations of rhGH.     

活血化瘀中药联合血管内皮生长因子基因转移促进股骨头坏死处新生血管形成的实验研究

目的:观察活血化瘀中药联合血管内皮生长因子(VEGF)基因转移对促进股骨头缺血坏死处新生血管形成情况。方法:日本大耳兔40只,随机分为对照组、模型组、中药组、基因组和综合组。治疗8周后采用免疫组织化学方法观察股骨头滑膜VEGF阳性细胞率及数字减影血管造影股骨头血管数目改变情况。结果:模型组VEGF阳性细胞表达率减低,与对照组、基因组、综合组比较,差异有显著性意义(P<0.01),与中药组比较,有统计学差异(P<0.05),综合组VEGF阳性细胞表达率较高,与中药组及基因组比较,有统计学差异(P<0.05)。血管数目:在A区,各组与模型组比较,均无统计学差异;在B区,各组较模型组血管数目均有增加,对照组、基因组、综合组与模型组比较,有统计学差异(P<0.05)。综合组与基因组比较有统计学差异(P<0.05),中药组虽然血管数目较模型组多,但是无统计学意义。结论:活血化瘀中药及VEGF基因转移均可促进股骨头缺血坏死处局部新生血管形成和侧支循环的建立,尤以活血化瘀中药联合基因疗法效果为好,为临床应用活血化瘀中药联合基因疗法治疗股骨头缺血性坏死提供实验依据。     

595nm激光对兔耳瘢痕成纤维细胞增殖与凋亡的影响

目的：探讨595nmVbeam激光照射对增生性瘢痕动物模型伤口愈合过程中成纤维细胞增殖与凋亡的影响。方法：成年大耳白兔20只,建立兔耳腹侧面增生性瘢痕模型,对比研究在瘢痕形成过程中595nmVbeam激光照射对兔耳瘢痕成纤维细胞的影响,采用免疫组化方法检测增殖细胞核抗原（PCNA）蛋白表达和细胞凋亡的原位检测。结果：兔耳增生性瘢痕经595nmVbeam激光照射后,按不同时间段取材进行免疫组化染色并与对照组比较,高倍镜下观察结果,显示PCNA蛋白表达明显减弱,细胞凋亡增加。结论：595nmVbeam激光照射可抑制兔耳增生性瘢痕成纤维细胞的增殖过程,诱导细胞凋亡。应用595nmVbeam激光预防和治疗瘢痕是可行的。     

硫酸锌对大鼠移植胰腺再灌注损伤的保护作用

Objective:To study the protective effects of the heat shock protein 70 （HSP70）induced by zinc sulfate on reperfusion injury following pancreaticoduodenal transplantation in rats.Methods :The homologous male Wistar rat model of heterotopic total pancreaticoduodenal transplantation was used. The ZnSO4 treated rats received the intravenous injection of Zn2+5 mins before and after operation at a dose of 5 mg/kg (Zn 1 group),10 mg/kg(Zn 2 group) and 15 mg/kg(Zn 3 group), and the control group with the same volume of saline. The tissue concentration of HSP70 was determined using Western Blot. In addition，blood sugar (BG) and serum concentration of amylase and lipase were examined 24h after transplantation, and the activity of myeloperoxidase (MPO) in the pancrease graft was measured at the same time. Histological observation was performed.Results:Light microscopic studies showed that histomorphological changes of pancreas in Zn 2 group and Zn 1 group were much less than those in control group and Zn 3 group. The value of BG and serum lipase and MPO in Zn 2 group ＜ Zn 1 group 相似文献