铁路高压电弧烧伤

1985年9月以来我们收治铁路高压电弧烧伤78例,治愈64例,死亡9例,自动出院5例。初步探讨了其致伤机理,并根据本组临床资料,分析总结了此类烧伤的特点:①位于车体顶部者易烧伤;②多发生于青壮年男性,以农民居多;③烧伤面积大,以深度烧伤为主;④复合伤发生率高;⑤休克发生率高,伤后并发症多。同时,通过详细分析致伤原因,提出预防措施,旨在避免和减少此类烧伤的发生。     

肾综合征出血热混合型疫区分型的研究

运用血凝抑制试验方法，对肾综合征出血热混合型疫区病人进行分型研究，发现姬鼠型与家鼠型病人之比为２．６４：１，提示家鼠感染与室内感染及轻型病人有关，而野鼠感染则发生在户外，且与重型病人有关。     

Association studies in cancerology: the example of gene L-myc polymorphism associated with the incidence of pulmonary metastases in breast cancers]

Genes, which are implicated in the pathogenesis of human tumors, may demonstrate Restriction Fragment Length Polymorphism (RFLP). Population studies of such RFLP are of potential interest for a genetic analysis of cancer susceptibility. The initial data of Krontiris et al has shown a significant increase of rare c-Ha-ras-1 alleles in individuals with tumors. Since then, other significant associations have been found between other genes RFLPs and various tumors. In this paper, we report that L-myc RFLP may prove useful in identifying breast cancer patients at high risk of developing lung metastases.     

The adoptee method in psychiatry

With the adoption methods it may be possible to disentangle genetic and environmental factors. If we accept the concept of schizophrenia spectrum and psychopathia spectrum, there is evidence that the role of genetic factors can be supposed. The authors make a critical survey of the papers dedicated to this issue.     

铅对恒河猴的月经和妊娠结局影响的观察

本文报道了恒河猴在接触较低剂量醋酸铅的亚慢性作用下,对月经和妊娠结局的影响。结果表明,铅可引起恒河猴的月经机能障碍、受孕率降低和流产。月经异常以周期延长和周期不规则为主,周期不规则发生率呈剂量-反应关系。     

137例胃疾患的血清及胃液乳酸脱氢酶测定分析

137例胃镜检查并经活检病理证实为浅表性胃炎、溃疡、浅表性胃炎伴不典型增生、浅表性胃炎伴肠腺化生、萎缩性胃炎,萎缩性胃炎伴肠腺化生和胃癌患者的血清乳酸脱氢酶(LDH)测定,与48例正常供血者血清LDH测定结果进行比较,均无显著性差异。其中部分病例进行LDH同工酶测定结果,胃癌等患者的LDH_5、LDH_4出现阳性结果。对124例上述患者抽取胃液中和后进行LDH测定,以浅表性胃炎胃液LDH平均值为对照,胃癌患者胃液LDH增高,具有显著性差异(P<0.01),其他疾患未见显著性差异。     

口服左旋氧氟沙星在呼吸道感染患者中的药动学研究

目的 :口服左旋氧氟沙星在下呼吸道感染患者中的药代动力学研究。　 方法 :8例肺部感染的住院患者 ,单剂量口服左旋氧氟沙星片 30 0 mg后分别测定不同时间血和尿中左旋氧氟沙星浓度。用高效液相色谱法荧光检测。药时数据用 3p87计算机程序拟合求算药动学参数。　 结果 :单剂量口服 30 0 mg左旋氧氟沙星片后的主要参数为 :Cmax 3.32± 0 .4 1μg/ ml,t1/ 2 5.58± 1.86h,Tmax 2 .17± 0 .69h,AUC0 -∞ 2 3.34± 3.0 9μg/ ( ml· h)。 2 4 h尿中累积排出量 2 4 9.8± 2 4 .2 1mg,占给药剂量的 83.3%。　 结论 :左旋氧氟沙星在呼吸道感染患者中的药代动力学参数与氧氟沙星基本一致     

Effect of vinyl chloride on testis in rats

A total of 300 male adult Wistar rats (180-220 g) were used. Animals were divided into four groups: control, vinyl chloride (VC) 10-, 100-, and 3000-ppm exposed groups. Seventy-five rats were used for each group. Inhalation exposure to VC was conducted 6 hr per day and 6 days per week. In the third, sixth, and twelfth month following exposure 8-30 rats of each group were killed. The others were under observation and sacrificed after 18 months. After exposure to VC, the organ and body weight ratio, such as the kidney, liver, spleen, and heart were increased, but those of the testis were decreased in the experimental groups in the sixth month. The differences between experimental groups and the control group were statistically significant (P less than 0.05 or P less than 0.01). The weights of testis were decreased and damage of testicular seminiferous tubules were found in rats by histopathological examination. Incidence of damage of testicular seminiferous tubules in the control, 10-, 100-, and 3000-ppm groups were 18.9, 29.7, 36.5, and 56.0%, respectively. There was an obvious dose-response relation between the concentration of VC and the incidence of testis damage, with a correlation coefficient of 0.993 (P less than 0.01). Statistically, the incidence of damage of testicular seminiferous tubules in rats in the 3000-ppm group and in 100-ppm group were significantly higher than that of the control group, respectively (P less than 0.001) and P less than 0.05).