风湿性心脏病二尖瓣置换术中细胞因子水平的变化

目的测定风湿性心脏病二尖瓣置换术中细胞因子水平,了解它们的变化规律。方法 11例体外循环(CPB)下二尖瓣置换术患者,分别于术前,主动脉阻断前,主动脉阻断后5min,主动脉开放后10min、1h、2h、4h、24h测定白介素6(IL-6)、白介素8(IL-8)、白介素10(IL-10)以及肿瘤坏死因子(TNF)。结果IL-6、IL-8、IL-10水平在CPB开始后逐渐升高,在主动脉开放后2h左右达到高峰(P<0.01)。之后逐渐下降,到主动脉开放后24h已显著下降。TNF水平在CPB开始后逐渐升高,在主动脉开放后24h仍维持在很高的水平(P<0.01)。结论CPB下二尖瓣置换术中既有促炎因子水平的升高,又有抗炎因子的激活。     

肝移植术后脑病的发病因素及防治

目的探讨肝移植术后脑病的原因及防治措施。方法回顾性分析185例肝移植患者的临床资料,将术后出现脑病的患者作为观察组,与对照组进行比较,分析发生脑病的原因,并总结其防治经验。结果肝移植术后出现脑病39例,占21.1%。脑病的发生与患者的术前Ch ild分级、有无肝性脑病史、术中的出血量、术后ICU天数及术后是否出现早期肝功能不良等因素显著相关,而与免疫抑制剂的血药浓度无显著相关性。结论肝移植术后脑病的发生是多因素的,通过合理的治疗,其预后良好。     

大蒜素抑制化学性致癌因素的实验研究

从氧自由基、细胞间缝隙连接通讯(GJIC)及DNA含量三个不同角度观察了大蒜素对肿瘤发生的预防作用。结果显示,大蒜素可显著减轻氧自由基对细胞的毒害,并能解除苯巴比妥对GJIC的抑制(P<0.01)。证明大蒜素有很强的预防肿瘤发生的作用。     

胰RNA对离体瘤细胞的杀伤作用及其机制的探讨

在体外培养瘤细胞的实验中,胰RNA提取物对艾氏腹水瘤细胞及其他瘤细胞(S_(180),P_(88),H_(22))有杀伤作用。在胰RNA提取物中,对瘤细胞具有杀伤作用的活性物质不是性凝集素样多糖类物质或能透过半透膜的小分子化合物,而是具有二级结构的低分子RNA。     

Mitogenic effect of polyclonal anti-porcine lymphocyte E-receptor antiserum IgG

In the present paper we report the mitogenic effect of the sheep anti-porcine lymphocyte E-receptor antiserum IgG(APERIgG) on porcine peripheral T-lymphocytes in vitro. The effect was apparently dose-dependent and not seen in the B-lymphocyte cultures. Kinetic study showed that the maximal 3H-thymidine incorporation, similar to that induced by Con A, occurred on the third day of incubation. Neither F(ab')2 nor Fab fragment of APERIgG was able to induce cell proliferation, indicating that the integrity of IgG molecule was essential for cell response. It was very interesting to note that though there is cross antigenicity between porcine and human E-receptors, no similar effect could be produced by APERIgG in human peripheral lymphocyte cultures under the same experimental conditions, suggesting the existence of minor difference in structure between the porcine and human E-receptors.     

两点法腰麻-硬膜外联合阻滞用于妇科腹腔镜手术的体会

目的观察两点法腰麻-硬膜外联合阻滞用于妇科腹腔镜手术的可行性。方法观察68例,年龄34岁~75岁,ASAⅠ~Ⅱ级。全部采用两点法穿刺,先于T10~11间隙行硬外置管,后于L2~3间隙用25G腰麻针行蛛网膜下腔穿刺,成功后2ml0.75%布比卡以0.1ml/s的速度推完。腰麻平面固定后若未能达T4者硬膜外腔追加2%利多卡因。记录麻醉起效时间(注药至T4针刺无痛时间),麻醉平面上界,二氧化碳分压升高幅度,局麻药总量及麻醉并发症,并评定麻醉效果。结果麻醉效果满意,麻醉起效时间(8.4±2.9)分钟,麻醉平面上界T3~T5,局麻药总量(8±3)ml,二氧化碳分压均小于47mmHg。无麻醉并发症发生。结论本法对于妇科腹腔镜手术,起效快,效果确切,合并症少,有临床应用价值。     

1 500例海府地区已婚妇女阴道脱落细胞学分析

目的 通过分析本地区已婚妇女阴道脱落细胞的情况,达到了解本地区妇女的健康状况.方法 采用苏木精-伊红染色法,按113s分类法.结果 检查海府地区1 500例已婚妇女的阴道脱落细胞学,得出炎症的鳞状上皮细胞、柱状上皮细胞为366例（占24.4%）、不典型细胞（鳞状上皮细胞、柱状上皮细胞）为10例（占0.67%）和轻度不典型增生为3例（占0.20%）,其中1例轻度不增生被病理活检诊断为宫颈鳞状上皮原位癌.结论 定期妇科体检有利于妇女自身健康,极早发现疾病,从而提高生活质量.     

Lung cancer and prior tuberculosis infection in Shanghai

In a population-based case-control study of lung cancer in Shanghai involving interviews during 1984-86 with 1,405 cancer patients and 1,495 controls, a significant 50% elevation in the risk of lung cancer, adjusted for cigarette smoking, was observed among persons who had a history of tuberculosis. Among those diagnosed with tuberculosis within the past 20 years, the risk exceeded 2.5-fold. In males the lung cancers tended to occur on the same side as the previous tuberculosis infection. For both sexes, the effect of recent tuberculosis was most apparent for adenocarcinoma and peripheral tumours. No relationship was found between lung cancer risk and the type of tuberculosis therapy, including use of isoniazid. The findings suggest that tuberculosis may predispose to lung cancer, with the association most apparent among recent survivors of the infection.     

带酞基聚芳醚酮超滤膜的研究──Ⅰ带酞基聚芳醚酮超滤膜的制备与性能

以带酞基聚芳醚酮（ＰＥＫＭ）为膜材料，用相转换法制备了ＰＥＫ—Ｃ不对称超滤膜，研究了铸膜液的主要组分对膜的孔结构与超滤性能的影响。     

有抑郁症史者想象力的研究

实验组为45名缓解的内源性抑郁症患(男25例,女20例)。对照组为15名缓解的双相障碍患者(男8例,女7例),71名正常人(男41例,女30例)。利用作者建立的想象结局法发现:实验组想象力总分显著低于正常人组,特别是当涉及不愉快事件的测题时,单项分亦显著低于正常人。双相障碍组总分亦显著低于正常人。实验组有关性内容的比率得分显著低于正常人。