血液与非血液灌流行缺血预处理鼠心的电生理实验研究

本实验研究血液与非血液灌流条件下缺血预处理（ＩＰ）对心肌的保护作用。应用离体大鼠Ｌａｎｇｅｎｄｏｒｆ灌流模型，分血液灌流ＩＰ组、非血液（ＫｒｅｂｓＨｅｎｓｅｌｅｉｔ液，ＫＨ液）灌流ＩＰ组及相应的对照组。测量心肌电生理特性等指标。结果与ＫＨ液灌流心脏相似，用血液灌流的大鼠心脏经ＩＰ后，在随后的停灌和复灌期间，心室颤动阈升高，心律失常发生率明显降低。实验结论为在用血液灌流离体大鼠心脏模型上，ＩＰ对心肌的保护作用与用生理溶液灌流的模型基本相同。     

行为异常儿童社交能力分析

目的探讨儿童行为问题与社交能力之间的的关孔方法使用Achenbach’s儿童行为量表对1051名儿童进行筛查，检出98名行为异常者，计数统计其社交项目与总体儿童社交项目人数比较之，x2统计分析。结果在活动的技巧水平上，在家庭关系中，在校学习对知识的理解、掌握程度、心情舒畅程度等方面，异常儿不如总体（P＜0．05），但在活动的时间、对外社交及学习成绩方面二者无明显差异（P＞0.05）。结论儿童行为问题与社交能力的关系。并不是单一的正、负相关所能概括的，应该具体问题具体分析，审视其全面。     

叶下珠复方治疗慢性乙型肝炎54例临床观察

应用叶下珠复方治疗慢性乙型病毒性肝炎５４例，与灭澳灵１０例作对照。结果显示叶下珠复方组治疗３个月（其中１０例治疗６个月）．临床症状体征显著改善，肝功能复常或明显改善者达８２．６％；ｅ抗原及ＨＢＶ—ＤＮＡ转阴率分别为４６．２％（２４／５２）和４６．３％（１９／４１）；疗效优于灭澳灵组（上述３项指标分别为２０％，１０％，１００％；Ｐ＜０．０１和Ｐ＜０．０５）。叶下珠复方组治疗３个月后ｅ抗原及ＤＮＡ未阴转中１０例延长疗程至６个月，结果ｅ抗原及ＨＢＶ—ＤＮＡ转阴分别为６例；ｅ抗原阴转患者中大部分伴随ＨＢＶ—ＤＮＡ阴转（８５．７％）及肝功能复常或改善（１００％）。ｅ抗原及ＮＢＶ—ＤＮＡ的阴转率似在成年患者及病程短者较高；而与中医证型似无明显关系。研究表明叶下珠复方治疗慢性乙型病毒性肝炎具有一定的疗效，延长疗程似可提高疗效，尚需进一步研究。     

人脑胶质瘤的实验系列研究

1979～1989年,我室建立了人脑胶质瘤的体外和体内模型,在实验肿瘤的生物学、形态学、动力学、遗传学、神经生化,免疫组化、细胞杂交、单抗分子生物学、放射免疫、生物导弹和实验治疗等多方面进行了探索,其中大部分的结果己经或即将发表。本文旨在系统归纳,以利同道检索。     

高质量电镜影象幻灯片的简便制作方法

使用135单镜头反光照相机和近摄接圈,加置一个普通印相晒箱,即可对电镜底片直接成像,精确的曝光,配合标准程序冲洗,一步制成135幻灯片。其质量优良,且简便可靠、省工省时、节约材料,能大大提高工作效率。本文较为详细地介绍了具体操作方法及要点,并对其它常用制作方法亦做了分析讨论。     

Cancer mortality among shoe manufacturing workers: an analysis of two cohorts.

OBJECTIVES: To examine the cancer risk of shoe manufacturing workers and evaluate whether the risk was associated with exposure to leather dust and solvents. METHODS: Data from two historical cohort studies of shoe workers were expanded and analysed in parallel. A total of 4215 shoemakers from England contributing 103 726 person-years at risk and 2008 shoemakers from Florence, Italy, contributing 54,395 person-years at risk were included in the analysis. Exposure to leather dusts and solvents from glues was evaluated on the basis of job title information. Standardised mortality ratios (SMR) were calculated as ratios of observed deaths (Obs) over expected derived from national mortalities. RESULTS: Overall mortality was lower than expected in both cohorts (English cohort: Obs 3314, SMR 81, 95% confidence interval (95% CI) 78-84; Florence cohort: Obs 333, SMR 87, 95% CI 78-97). An increased risk of nasal cancer was found (English cohort: Obs 12, SMR 741; Florence cohort: Obs 1, SMR 909). 10 of the 13 cases occurred among English workers employed in the manufacture of welted boots (SMR 926, 95% CI 444-1703), a sector of the industry thought to have had the highest exposure to leather dust. Mortality from leukaemia was not increased in the English cohort (Obs 16, SMR 89), but was increased in the Florence cohort (Obs 8, SMR 214, 95% CI 92-421); and the highest risk was found among shoe workers in Florence who were first exposed between 1950 and 1959 when exposure to benzene was substantial (Obs 3, SMR 536, 95% CI 111-1566). Some evidence for an excess risk of stomach, bladder, and kidney cancer, as well as multiple myeloma and non-Hodgkin's lymphoma was also found in the Florence cohort only among workers employed in jobs with the highest exposure to solvents. CONCLUSIONS: These findings confirm the associations between exposure to leather dust and nasal cancer and between exposure to benzene and leukaemia in the shoe manufacturing industry and suggest that the risk of other cancers may be increased among workers exposed to solvents or glues.     

CT造影剂碘海醇注射液的制备及动物实验

本文报道了非离子型Ｘ－ＣＴ造影剂碘海醇注射液的制备及动物实验结果。磺海醇的最大吸收波长λ＿（ｍａｘ）为２４４ｎｍ。讨论了温度、浓度对磺海醇溶液粘度的影响：粘度随温度的升高而下降，呈负线型相关；粘度随浓度（Ｃ）升高而激剧升高，与浓度的四次方呈线性相关：Ｖ＿（３７℃）＝４７２．５８９［Ｃ］￣４＋１．１２１（ｒ＝０．９９７７）Ｖ＿（３０℃）＝６６３．８１３［Ｃ］￣４＋１．１５２（ｒ＝０．９９９６）Ｖ＿（２０℃）＝１０８２．９５３［Ｃ］￣４＋１．４３３（ｒ＝０．９９８２）使用该注射液进行狗的造影实验，获得了清晰的造影图像。     

放射性碘对大鼠致癌效应的研究

对雄性Wisiaf大鼠腹腔1次注射碘-13l, 注入活度分别为0.59×10⁴Bq,2.37×10⁴Bq, 4.34×10⁴Bq, 8.23×10⁴Bq, 碘-125注入活度分别为3.7×10⁴Bq, 7.4×10⁴Bq, 14.8×10⁴Bq, 22.2×10⁴Bq.碘-131诱发肿痛实际注入活度在2.37×10⁴Bq以下,碘-125的为7.4×10⁴以下.诱发的肿瘤以甲状腺肿瘤为主,其次为垂体肿瘤.     

化工行业职业性机械伤害危险因素的病例-交叉方法研究

目的 研究化工行业机械伤害的有关诱发因素，估计其作用强度。方法 采用病例-交叉设计的方法。以操作和检修时受伤的化工工人为研究对象，每个对象在受伤后2d内完成调查，收集他们受伤前10min、上一工作日同一段时间和受伤前1周内有关诱发因素暴露的信息，用配对时间段方法和一般频数法进行分析，评估各种诱发因素的危险度。结果 一般频数法分析的结构表明，操作方法异常、设备工具缺陷、工作紧迫、注意力不集中、不使用防护用品、精神状况较差、与同事配合不协调、工作环境发生变化等瞬时危害因素的RR值及95%可信限的下限均大于1。配对时间段方法分析的结果与其相拟，但95%可信限较宽。结论 化工行业职业性机械伤害的发生存在着诸多诱发因素。病例-交叉研究中的一般频数法与配对时间段方法相比，前者所得结果较为可靠，研究的相对效率较高。建议进一步使用多个时间段方法进行研究，以减小混杂因素的影响。     

Indirect carotid-cavernous sinus fistula: transvenous embolization from the external jugular vein using a superior ophthalmic vein approach. A case report

A case of indirect carotid-cavernous sinus fistula treated by combined transarterial and transvenous embolization is described. A 49-year-old woman with a right indirect carotid-cavernous sinus fistula draining solely to the right superior ophthalmic vein was treated first by transarterial embolization with polyvinyl alcohol particles. Then, by approaching through the superior ophthalmic vein from the right external jugular vein, the cavernous sinus was embolized with platinum wire using a tracker microcatheter, which resulted in marked clinical improvement. Transvenous embolization by approaching from the external jugular vein through the superior ophthalmic vein represents a promising alternative when shunted blood drains anteriorly to the superior ophthalmic vein.