子宫肌瘤患者外周静脉与子宫静脉血管内皮细胞生长因子水平测定及临床意义

目的:探讨血管内皮细胞生长因子(VEGF)在子宫肌瘤发生和肌瘤生长中的作用。方法:手术中暴露子宫静脉后,抽取子宫静脉血3ml,同时抽取非输液肢体外周静脉血3ml。抽取配对正常妇女外周静脉血3ml。ELISA法测定VEGF水平。测量子宫重量、肌瘤总重量、肌瘤数目和最大肌瘤最大径线值。结果:子宫肌瘤患者子宫静脉血和外周静脉血VEGF水平分别为159.38±25.63pg/ml和76.35±26.61pg/ml,对照人群外周静脉血VEGF水平为42.53±29.47pg/ml。子宫静脉血中的VEGF水平明显高于外周静脉血(P=0.019),子宫肌瘤患者外周静脉血中的VEGF水平明显高于对照人群外周静脉血的VEGF水平(P=0.013)。子宫重量、肌瘤总重量、肌瘤数目、最大肌瘤最大径线都与子宫肌瘤患者子宫静脉和外周静脉VEGF呈显著正相关。结论:VEGF可能参与了子宫肌瘤的生长和病情发展。     

蜂胶提取物对小鼠胸腺肽合成的影响

目的：研究蜂胶乙醇提取物黄酮（EEP）对小白鼠衰老过程中胸腺肽合成量的影响。方法：垂直板电泳法。结果：EEP可增加小鼠胸腺肽的合成量。结论：EEP可增强小鼠的免疫力。具有抗衰老作用。     

体外反搏治疗血清对培养内皮细胞基因表达的影响

目的探讨经体外反搏治疗的冠心病患者血清对血管内皮细胞基因表达的调控效应。方法分别取接受体外反搏治疗的冠心病患者1、24和36h时间点的血清，用于培养人脐静脉血管内皮细胞。用cDNA基因芯片检测3个治疗时点反搏前、后血管内皮细胞基因表达谱。结果反搏前后比较，有10个基因（核转录因子、真核转录启动因子-4、平滑肌的肌球蛋白重链、α2-肌动蛋白、微管蛋白β肽链、组织相容蛋白G、黑色素黏附分子、神经介素B受体、蛋白激酶4K2、血小板凝血酶敏感蛋白-1）的表达在3个治疗时点上出现显著改变。在1h点均为上调，在24h、36h时点均为下调。结论体外反搏治疗冠心病患者血清对血管内皮细胞的炎症反应、细胞凋亡相关基因表达有调效应，并随体外反搏治疗时间的增加早抑制其表达的趋势。     

Naturally occuring antibodies against nerve growth factor in human and rabbit sera: comparison between control and herpes simplex virus-infected patients

Antibodies against nerve growth factor (NGF) in sera were detected by enzyme-linked immunosorbent assays (ELISA), by their isolation after passage of sera through NGF immunoadsorbent columns and by their specificity to bind and immunoprecipitate mouse NGF as well as to stain by immunohistochemical methods cellular sites of NGF synthesis. Increased levels of anti-NGF antibodies were found in sera of herpes simplex virus (HSV)-infected patients but not in HSV-inoculated rabbits. As HSV latency is known to be promoted by NGF in vitro, these results may suggest that anti-NGF antibodies modulate the cytokine function of NGF and thus might play a role in HSV infection. The biological function of circulating antibodies against NGF, in general, is now open to future investigation.     

PRENATAL DIAGNOSIS Ⅰ. EARLY DIAGNOSIS OF OPEN NEURAL TUBE DEFECTS BY QUALITATIVE ACETYLCHOLINESTERASE ISOENZYME IN AMNIOTIC FLUID

The measurement of amniotic fluid (AF) acetylcholinesterase isoenzyme (AChEI) is a relatively new method for early diagnosis of open neural tube defects (NTDs). As quantitative methods are of unproven reliability at present, the authors used a high resolving power qualitative method-vertical slab polyaerylamide gel electrophoresis. The benefits of this technique are: simplicity of operation, accuracy, unsophisticated equipment, and easily available reagents. Combined results of 9 NTDs studies revealed that samples from early pregnancy gave more accurate results than those from late pregnancy.     

不同分级肝硬化患者血清甲状腺素水平的意义

目的探讨肝硬化患者血清中甲状腺素水平的变化与肝硬化病变程度及其临床实验室检查之间的相关性。方法用放免法测定肝硬化患者血清FT3、FT4、PC-Ⅲ、Ⅳ-C、LN及HA，并按Child—Pugh方法将肝功能分为A、B、C三级。结果随着肝硬化病变程度的加重，血清肝纤维化指标逐渐增高，甲状腺素呈下降趋势，同时血清甲状腺素水平与肝硬化的低蛋白血症、腹水及凝血酶原时间密切相关。结论肝硬化患者体内存在不同程度的甲状腺素水平紊乱，紊乱程度与肝功能受损程度有明显相关性，联合检测血清FT3、FT4、PC-Ⅲ、Ⅳ—C、LN及HA对估计肝硬化病变程度及判断预后有十分重要的临床价值。     

中草药醛糖还原酶抑制剂筛选模型的建立

目的：通过观察中药知母对醛糖还原酶活性的抑制作用，建立一种适用于筛选中草药醛糖还原酶抑制剂的模型。方法：大鼠12只随机分成3组：空白对照组、知母组、阳性药物组，分别给予生理盐水、知母水提液、依帕司他水溶液灌胃。采用“通法”给药方案制备含药血清，部分血清经过丙酮预处理。将知母水提液和含药（知母）血清分别加人体外建立的以DL-甘油醛为底物、NADPH为辅酶的醛糖还原酶活性测定体系。结果：丙酮处理过的空白血清较未处理的空白血清对酶活性的影响更小；知母水提液对醛糖还原酶抑制率达99％，含药（知母）血清对醛糖还原酶抑制率达67％。结论：运用血清药理学实验方法建立的筛选模型能有效、可靠的进行中草药醛糖还原酶抑制剂的筛选。     

血清瘦素在男生青春发育期的动态观察

目的 探讨血清瘦素在男生青春期发育中的作用。方法 健康男生170名，调查首次遗精时间，测定血清瘦素、睾酮、促卵泡成熟激素、黄体生成激素水平，采用多元Logistic回归模型分析男生青春期发育的影响因素；同时，连续两年观察，分析血清瘦素在青春期的动态变化。结果 末次研究已遗精组血清瘦素、睾酮、促卵泡成熟激素、黄体生成激素水平均明显高于未遗精组。多因素分析显示血清瘦素、睾酮、促卵泡成熟激素、体重为男生青春期发育的独立影响因素。初次资料分析，遗精前组血清瘦素、睾酮明显高于未遗精组。结论 血清瘦素、睾酮、促卵泡成熟激素、体重为男生青春期发育的独立影响因素，男生遗精前期血清瘦素、睾酮已有明显改变。