高压氧治疗尺桡神经损伤疗效观察

应用高压氧治疗尺桡神经损伤修复术后１１例，与同期单纯手术修复１４例相比，优良率明显提高，二组间有显著差异。Ｐ＜０．０５，提示高压氧对尺桡神经损伤的修复有促进作用     

Rapid hypertensinogenic effect of lead: studies in the spontaneously hypertensive rat.

Chronic lead exposure may cause hypertension in normotensive rats. This hypertensinogenic effect has been attributed to perturbations in the renin-angiotensin axis, the contractile response of the vascular smooth muscle, or the intracellular Ca2+ homeostasis as a consequence of the inhibition of Na(+)-K(+)-ATPase activity. In this study we examined the short-term effect of lead exposure on blood pressure, plasma renin activity, vascular contractility, and renal Na(+)-K(+)-ATPase activity and abundance in the spontaneously hypertensive rat. Our data indicate that modest lead exposure caused blood pressure elevation within two weeks in this rat strain that is genetically susceptible to the development of hypertension. This rapid blood pressure-elevating effect did not appear to depend on the mechanisms described in hypertension associated with more chronic lead exposure listed above. This acute model provides an additional approach to the study of lead-induced hypertension.     

锰超氧化物岐化酶模型配合物的研究

为探索天然超氧化物岐化酶（ＳＯＤ）岐化超氧离子的机理，及用于临床的可能性，我们合成了乳酸、柠檬酸和酒石酸的锰（Ⅱ）配合物作为Ｍｎ－ＳＯＤ的模拟物，用光照法测定了它们的活性，得到了有意义的结果：锰配合物作为Ｍｎ－ＳＯＤ的模拟物，有肯定的活性，其中以乳酸锰配合物活性最高。     

The clinical significance of red cell immune adherence function in patients with pulmonary tuberculosis and silicotuberculosis]

In our study, we observed that (1) High RCIA were discovered in these two groups. (2) In the group of pulmonary tuberculosis, the C3b receptor activities remained no change after antituberculous therapy, but the amounts of immune complexes bearing on RBC decreased. In the patients with the high RCIA, CIC was discharged rapidly and the lesions of tissue produced by CIC were prevented. In the patients with silicotuberculosis, both silica and tuberculous bacilli may act as immune adjuvant and enhance the hypersensitivity. So the C3b receptor activities were higher in silicotuberculosis patients.     

近红外乳腺扫描对早期乳癌的诊断价值(附1500例病例分析)

近红外线乳腺扫描对诊断乳腺癌,特别对早期乳癌具有高度的敏感性和诊断特异性,根据1500例证实的分析,近红外线乳腺扫描诊断率T1—T2期为95％;T1期直径<1cm及TO期乳癌诊断率为85％。 作者首先提出近红外线乳腺扫描的所见15种分型,本文叙述了近红外线乳腺检查的诊断原则及其诊断价值。 由于近红外线乳腺扫描具有高敏感性而且是无损害的简易的检查方法,我们认为应作为乳腺的常规检查及普查时的首选检查方法。     

Comparative Study on the Immunogenicity between Recombinant MS-Sj26GST Vaccine and Recombinant BCG-Sj26GST Vaccine in Schistosoma japonicum

TuberculosisandSchistosomiasisarethemajorcontagiousdiseaseswhicharethemostdangeroustothepeople’shealth Inordertogetridofthem ,wemustlookforamoreusefulvaccine Bythetech niquesofmolecularbiology ,2 6 0 0 0DaGlutathionStransferase (GST) genewasclonedintotheE coli MycobacteriumtransferringandexpressionvectorpBCG 2 0 0 0totransformittoMycobacteriumsmeg matismc2 15 5 (MS)andBCGseparatelyinordertoconstructrMS Sj2 6GSTvaccineandrBCG Sj2 6GSTvaccine Inthisstudy ,theBALB/cmicewereimmu niz…     

不同浓度的金属硫蛋白对离体豚鼠乳头肌缺氧、复氧电生理特性的影响

为探讨金属硫蛋白（MT）对豚鼠乳头肌缺血再灌注损伤所致心律失常的影响，利用标准玻璃微电极技术，采用缺氧及复氧豚鼠乳头肌模型，模拟体内缺血再灌注损伤，观察不同浓度MT对豚鼠乳头肌电生理特性的影响。结果显示低浓度的MT（0．002mmol／L）对正常及缺氧和复氧豚鼠乳头肌的动作电位（AP）有关参数及自律性均无影响；中等浓度的MT（0．02mmol／L）仅使正常乳头肌的AP复极达50％时程（APD50）缩短24％（P＜0．05），但使缺氧乳头肌的AP复极达20％时程（APD20）、APD50和AP复极达90％时程（APD90）分别缩短68％、56％和43％（P均＜0．01），并使静息电位（RP）、AP幅值（APA）和0相最大上升速率（Vmax）分别增加30％、30％和45％（P均＜0．01）；高浓度的MT（0．1mmol／L）使正常豚鼠乳头肌的APD20、APD50和APD90分别缩短57％、54％和50％（P均＜0．01），并且RP、APA及Vmax分别下降22％（P＜0．05）、28％（P＜0．01）和29％（P＜0．05），而使缺氧豚鼠乳头肌的APD20、APD50和APD90分别延长92％、78％和50％（P均＜0．01），对RP、APA及Vmax无明显影响。在复氧期间，0．02mmol／L的MT可使自律性的发生率从77．8％降至55．6％（P＜0．05）；而0．1mmol／L的MT则使自律性的发生率从77.8％降至22．2％（P     

“软骨康”对损伤关节软骨修复机制的初探

我们用中药软骨康,对全层缺损的兔膝关节股骨髁关节软骨,进行三周治疗,取得较为满意的效果。实验结果表明,软骨康在促进成纤维细胞分泌大量胶原纤维,促进组织再生;对血管增生和扩张血管加速局部血循环以及提高滑膜的增生和活性,使其参与损伤组织的再建,均有独到作用。     

四种可溶性载体对骨形态发生蛋白在小鼠体内诱导成骨活性的影响

以四种可溶性物质作为牛骨形态发生蛋白（ｂＢＭＰ）的载体，通过实验观察哪种物质是ｂＢＭＰ的有效缓释载体。将聚乙烯吡咯烷酮（ＰＶＰ）、葡聚糖、羟乙基淀粉（ＨＥＳ）、甘露醇分别与等量ｂＢＭＰ复合后，注射入小鼠股部肌肉，观察组织学成骨及测定标本内钙含量。结果，ｂＢＭＰ／ＰＶＰ有良好成骨，吸收较快，未见炎症及排斥反应，其混悬液较稳定，具有良好的适针性及可注射性，ｂＢＭＰ／甘露醇只有很低成骨率。其余各组未见成骨。ＰＶＰ对ｂＢＭＰ具有满意助溶、助悬及缓释载体作用，对ｂＢＭＰ活性无损害，生物相容性好。     

强直性肌营养不良毛细血管的超微结构变化

５例强直性肌营养不良患者的腓肠肌活检标本超微结构研究结果发现，除肌纤维变性、萎缩和结缔组织增生外，毛细血管病变特别突出。血管壁严重增厚，基板呈多层性改变，周细胞增生。有些复层的毛细血管基板多达９层。内皮细胞外可有多层周细胞半包绕血管，有些周细胞又发出分支沿管壁延伸。周细胞一般位于内皮细胞下第一层基板之外，也可位于复层基板之中，周细胞与周细胞之间有多层基板。内皮细胞和周细胞内富含吞饮小泡。血管病变程度与肌纤维变性程度呈平行关系。