降纤酶对血栓形成和光化学诱导大鼠脑缺血的影响

目的:探讨降纤酶对血栓形成和光化学诱导大鼠脑缺血的影响。方法:①对血栓形成的影响:10只大鼠分为生理氯化钠溶液对照组及降纤酶治疗组(每组各5只),采用微循环方法观察降纤酶治疗后肠系膜血栓溶解情况,分别在光照后1,2,5,10min记录对照组及治疗组血栓体积及占管腔体积比。②对光化学诱导大鼠脑缺血的影响:72只大鼠以光化学法制成左顶叶皮层缺血模型,治疗组于缺血后1,3,6,9,12,24h由尾静脉注射降纤酶8U·kg~(-1)),对照组按相同时间点用等量生理氯化钠溶液尾静脉注射。进行神经功能评分,缺血48h后处死,标本用HE及TTC染色,观察梗死灶病理改变及测定梗死灶体积。结果:①对血栓形成的影响:降纤酶治疗组血栓体积明显减小,占管腔体积百分比减少,与对照组相比有显著性差异(P<0.05)。②对光化学诱导大鼠脑缺血影响:缺血1,3,6h治疗组神经功能评分改善,脑梗死体积明显减小,与对照组相比有极显著性差异(P<0.01),相应时间点病理改变轻于对照组。缺血9h给药组神经功能评分有改善,脑梗死体积亦较对照组小,统计学有显著差异(P<0.05)。12和24h治疗组与对照组相比无显著差异(P>0.05)。结论:降纤酶能有效溶解肠系膜血栓并减小光化学诱导大鼠脑梗死体积。     

Study on Metabolites of Aconitum Alkaloids in Human Urine

TheaconitebelongstoplantsofgenusAconituminfamilyofRanunculaceaandhavenotableclinicalfunctionsintreatingrheumaticarthritis ,heartfailure ,etc .However,accidentsofaconitine(fromaconite)poisoningfrequentlyoccurtomanypeopletakingtheseherbs .Theplantsofthisfamilycontainaconitine ,mesaconitine ,hypaconitineandotheraco nitumalkaloids .Theyarehighlytoxic ,andtheirtreatmentdoseapproachestothetoxicdoseorlethaldose .Duringtheperiodfrom 1989- 1995 ,morethan 30casesofpoisoningcausedbyaconitineinsometradit…     

Parental response and understanding towards febrile convulsion

A questionnaire survey was conducted on parents of 58 patients admitted with febrile convulsion (FC) over a 4 month period to the University of Malaya Medical Centre, Kuala Lumpur to determine parental response towards febrile convulsion in their child and their understanding of home management of FC. RESULTS: The majority of parents (93%) were frightened or were in a panic state on witnessing FC in their child. Most (77.6%) of them were able to bring their child to medical attention within 30 minutes, with delays attributed to transport problems. Parental understanding on FC was deficient, particularly with regard to home management of acute seizures. The parents' main source of information was friends and relatives. CONCLUSIONS: Urgent intervention to counsel and allay fears of parents who have just witnessed an acute FC in their child is required. More effort must be made to educate parents about FC, with particular reference to home management of seizures.     

肝细胞生长因子及其受体c-met在卵巢上皮性肿瘤组织中的表达及意义

目的:研究肝细胞生长因子(hepatocytegrowthfactor,HGF)和cmet蛋白在卵巢上皮性肿瘤组织中的表达以及与临床病理特征的关系。方法:应用免疫组织化学SP法对45例卵巢上皮性恶性肿瘤及10例卵巢上皮性良性肿瘤组织中HGF和cmet蛋白的表达进行定位分析;应用蛋白印迹法检测HGF、cmet蛋白在卵巢上皮性肿瘤中的表达。结果:在卵巢癌组织中,HGF在上皮细胞的表达强于间质细胞,cmet在上皮细胞强表达,间质细胞无表达。HGF和cmet蛋白在卵巢癌组织中阳性率分别为60.0%(27/45)和73.0%(33/45),较良性肿瘤组织的阳性率20.0%(2/10)和50.0%(5/10)显著升高,P值分别为0.000和0.000。手术病理分期Ⅲ～Ⅳ期者HGF和cmet蛋白表达的阳性率为70.4%(19/27)和88.9%(24/27),较Ⅰ～Ⅱ期者的38.9%(7/18)和50.0%(9/18)显著升高,P值分别为0.048和0.000。淋巴结转移者阳性率分别为78.6%(11/14)和92.8%(13/14),较无淋巴结转移者阳性率51.6%(16/31)和64.5%(21/31)升高显著,P值分别为0.025和0.000。HGF和cmet蛋白表达阳性率与年龄和病理分级无关,P值分别为0.436、0.549、0.465和0.124。HGF和cmet蛋白相对表达强度在卵巢癌组织中为1.29±1.25和1.57±1.25,在良性肿瘤组织中为0.17±0.34和0.44±0.46,两组比较差异有统计学意义,P值分别为0.000和0.007。在卵巢癌组织中HGF和cmet蛋白的表达呈正相关性,P=0.009。结论:卵巢上皮性肿瘤组织中存在HGF和cmet蛋白的表达,HGF和cmet与卵巢癌的发生、侵袭和转移密切相关。     

Expression of immunoregulatory cytokines in neurons of the lateral hypothalamic area and amygdaloid nuclear complex of rats immunized against human IgG

Present results showed that interleukin-1 (IL-1), IL-6 and transforming growth factor-beta (TGF-beta) were constitutively expressed in the supraoptic and paraventricular nuclei of the rat hypothalamus. Immunoreactive cells were also detected, but to a lesser extent, in other parts of hypothalamus as well as in the cerebral cortex. In rats immunized with IgG, there was moderate increase in immunoreactivities of the cytokines. A notable feature, however, was the induction of the cytokine expression in the lateral hypothalamic area and the amygdaloid nuclear complex, suggesting that the neurons in these two areas are involved in possible immune regulation.     

便携式输液设备的研制

本文介绍一种由8031单片机控制的便携式输液设备，阐述了其原理和组成，它可以自动控制输液速度和输液量，具有报警功能，成本低但性能好，可以广泛应用于临床输液以及药品成分分析等场合。