显微外科技术在尿道下裂修复中的应用

采用显微外科技术行阴囊纵膈皮瓣尿道下裂修复术18例，均获成功。其手术要点为：将阴茎腹侧纤维索条切除，充分伸展阴茎，皮瓣保留足够长度与宽度，克保血运；在显微镜下采用7－0尼龙丝线缝合，形成皮管，不缝皮肤，只缝皮下。硅胶管支架引流，加压包扎阴茎。本文对手术成功的原因进行了初步讨论。     

Variation of Apolipoprotein A-I in Cirrhosis and its Clinical Value

The serum apolipoprotein A- I (apo A-I) Concentrations in 39 patients with posthepatitis cirrhosis were reported to be 0.87±0.27 g/L lower than that of controls 1.15±0.14 g/L P<0.01. The, decrease of apo. A-I was correlated with the severityof impaired liver function. Apo A- I concentrations in serum correlated positively with decrease of serum albumin (r=0.503 P< 0.01) and negatively with serum bilirubin increase (r=- 0.508 P <0.01) . The data indicate that decreasing of apo A- I concentration may be regarded as one of the reliable indices reflecting the degree of liver function impairment.     

Studies on monoclonal anti-isotypic and anti-idiotypic antibodies against leukemia and myeloma: IV modulation of membrane fluidity of leukemic cell lines and tonsillar cell stimulated with McAbs

Summary In this study the technique of labelling the cell membrane with DPH fluorescence polarization was used to observe the membrane fluidity of B lymphocytic cell lines and tonsillar cells from healthy persons; the modulation effect on membrane-fluidity induced by McAbs against isotypic and idiotypic determinants of IgM from patients with leukemia was studied as well. The expression of the corresponding isotypic and idiotypic determinants of IgM on the cell membrane was determined. The results show that the membrane fluidity of leukemic cell lines is remarkably higher than that of tonsillar cells from healthy persons, and McAbs against isotypic determinants of leukemic IgM can enhance the membrane fluidity of all kinds of cells mentioned above. However, the anti-idiotypic monoclonal antibody increased only the membrane fluidity of leukemic cell lines. These results indicated that there was a close relationship between the effect of McAbs on cell membrane fluidity and the expression of corresponding isotypic and idiotypic determinants of IgM on the cell membrane.     

苯并恶唑类化合物的研究——Ⅰ.化合物的合成及光物理性能

合成了四种结构类型的苯并恶唑化合物共15个:测试了它们的红外吸收光谱,以及它们在DMF中的紫外吸收、荧光发射和激光发射光谱。苯基取代物的荧光量子产率在0.64～0.66,无激光性能。其余的化合物荧光量子产率都大于0.70,在最大吸收波长下的激光转换效率为2.5～5.9%。     

米非司酮作用于兔输卵管收缩活动与Ca^2＋关系的研究

通过“结合化学分离与原子吸收分光光度法”对Ca^2 含量测定和离体输卵管肌条收缩记录方法，研究米非司酮（Ru486)对增加假孕（4d)兔输卵管平滑肌收缩频率，而不改变其收缩张力和振幅时与Ca^2 之间的关系，结果提示：（1）Ru486对输卵管分泌液和组织内Ca^2 的含量分布无明显影响；（2）Ru486具有降低细胞外液高Ca^2 浓度促Ca^2 内流，而使收缩增强的效应，且能协同Ca^2 通道阻断剂（Verapamil)抑制细胞外Ca^2 内流，而致收缩减弱的效应。     

An effective treatment of comminuted fractures of the distal radius

One hundred cases of comminuted fracture of the distal radius were treated by a simple uniform method consisting of distraction by an external fixator for 3 weeks followed by functional bracing. During the application of the external fixator, autogenous cancellous bone chips were taken from the iliac crest and packed into the fracture site to realign the juxtaarticular fragments and to fill up the bone gap. Complications have been minimal. The results, after an average follow-up period of 20 months, taking into consideration subjective assessment of pain, objective measurement of wrist motion, and radiologic angles, have been excellent.     

全植入式药泵行肝血管灌注治疗晚期肝癌

对２４例不能切除的晚期肝癌采用完全植入式药泵行肝动脉和门静脉双灌注化疗。结果：部分缓解（ＰＲ）１５例（６２．５％），稳定（Ｓ）８例（３３．３％），进展（Ｐ）１例。平均生存期为９．１７月，半年生存率为６６．７％，１年为２５％。在ＡＦＰ＞４００μｇ／Ｌ的１０例中，５例下降。     

钡离子(Ba~■)诱发心室肌细胞自发电活动的实验

用心肌细胞跨膜电位记录,证实高浓度Ba~■(4mol/L)可诱发豚鼠心室肌自发电活性,这种自发电活性主要来自延迟后除极电位(DAD)及触发活动,且可被维拉帕米(异搏定)阻断,提示DAD的产生与钙离子内流有关。     

人胎儿雪旺氏细胞的体外培养及其纯化研究

本实验用酶消化法从孕１４～１９周人胎儿周围神经中分离培养雪旺氏细胞，结合差速贴壁和阿糖胞苷处理进行纯化，根据Ｓ－１００蛋白免疫细胞化学染色和形态学特征，分析不同时期雪旺氏细胞的纯化程度。实验结果显示：培养４ｄ，倒置相差显微镜下观察，雪旺氏细胞呈典型的双极或三极形，端对端或旋涡状排列，Ｓ－１００蛋白免疫细胞化学染色呈阳性反应，其比例约占９８％；在２～３周内，雪旺氏细胞的纯度维持在８５％～９０％；培养３５ｄ，雪旺氏细胞约占８０％；单纯采用阿糖胞苷或差速贴壁处理，培养３５ｄ，雪旺氏细胞约占７０％；原代培养９２ｄ，传代１１代细胞生长良好。实验结果表明，多种方法联合使用较单一方法所得的纯度高。本方法快速、简便，能为雪旺氏细胞作为移植材料提供足够的来源。     

红细胞同工酶ADA－EAP一AK_1同步电泳分型方法的建立

综合、改良了分别分型的方法，建立了红细胞同工酶ＡＤＡ一ＥＡＰ一ＡＫ１同步电泳分型方法，为ＡＤＡ，ＥＡＰ和ＡＫ１３种红细胞同工酶在法医学鉴定中更广泛的应用，提供了一种可靠、经济、实用的方法。