Cancellation test performance in African American, Hispanic, and White elderly.

Shape and letter cancellation test performance was investigated among large samples of African American, Hispanic, and White non-demented elders. Ethnic minority elders took significantly longer to complete both tasks compared to Whites. An index of task efficiency, which simultaneously measures time and accuracy, suggested that slower time by minority elders was not related to a measurable effort to achieve greater accuracy. The frequency of commission errors was greater in our sample than in previous reports, especially among ethnic minority elders. Although significant differences were observed between the ethnic groups when matched for years of education, equating for literacy level eliminated all performance differences between African Americans and Whites on both cancellation tasks.     

改良静脉输液排气法

为缩短静脉输液排气时间，提高一次排气成功率，对传统排气方法进行了改进，效果良好。现介绍如下。     

口腔黏膜下纤维性变S100蛋白表达

OBJECTIVE: To study the expression of S100 in oral submucose fibrosis(OSF). METHODS: Immunohistochemistry assay was performed on 10 cases of OSF, 10 cases of oral epithelial dysplasia (OED) and 8 cases of normal oral epithelium using monoclonal antibody against S100 protein. RESULTS: S100 did not express in the normal oral muscosal epithelium. The S100 positive nuclear staining was found in 50% of the OSF and OED cases, which was significantly higher than that in the normal oral epithelium (P < 0.05). But the positive staining in the OSF and OED cases had no difference (P > 0.05). CONCLUSION: S100 expression is closely related to the development of OSF and OED. The positive staining expression in the OSF and OED cases is the same.     

桂枝镇痛效应的药理学研究

目的　探讨桂枝的镇痛作用。方法　采用热板法和扭体法观察该药的镇痛作用。结果　桂枝对小鼠热致痛和醋酸致痛均有明显的抗痛作用 ,与颅痛定镇痛效果比较均无显著差异 (P >0 .0 5 ) 。结论　桂枝具有镇痛效应 ,对临床应用、镇痛药开发具有借鉴和指导意义。     

田径运动员最大摄氧量和无氧功测试中血乳酸的应用

目的:研究田径运动员最大摄氧量和Wingate测试后血乳酸的变化,分析血乳酸对测试结果的意义。方法:测试田径短跑运动员36例和中长跑运动员29例的最大摄氧量和Wingate无氧功,以及测试后的血乳酸值。结果:最大摄氧量测试后血乳酸数值为9～11mmol/L左右,摄氧量与乳酸值没有直接相关关系,但不同项目之间有一定的差异;Wingate测试后血乳酸数值一般大于12mmol/L,测试的主要评价指标与乳酸值都有较高的相关关系。结论:血乳酸值对于最大摄氧量测试意义不大,但对于Wingate测试可以作为一项辅助评价指标。     

~(60)Co-γ射线照射后HeLa细胞存活曲线和数学模式

本文研究了~(60)Co-γ射线照射后HeLa细胞的存活曲线,比较了两种数学模式拟合的结果.拟合优度以对误差加权的残差平方和(Q)作为统计指标进行评价.结果表明模式的拟合度较模式为优.     

桡骨与尺骨的测量及回归分析

本文测量了桡骨与尺骨各100例,其中桡骨15项指标,尺骨14项指标。并用IBM·PC—XT计算机DBASEⅢ数据库管理系统进行了统计分析以及用桡、尺骨最大长分别与桡、尺骨其它各项指标间进行直线相关分析,建立了25个回归方程。     

Effects of amoxapine and imipramine on evoked potentials in the Continuous Performance Test in patients with affective disorder

Twenty patients with major depressive disorder were studied with evoked potential (EP) topographic mapping after receiving placebo, imipramine, or amoxapine for 2 days in a random-assignment, double-blind design. Patients performed the Continuous Performance Test (CPT), a visual vigilance test. The stimuli were the digits 0-9, with 0 a target to be responded to with a button press. EPs were recorded from 32 channels and were averaged separately for detected and undetected targets and for false positives and correctly identified nontargets (no button press). Twenty-one normal controls were also tested. Amoxapine enhanced N120 amplitude in midline parietal and right parietal cortex where selective attention effects have been found to be greatest in studies of normal controls. Both amoxapine and imipramine enhanced differences in P200 between target and nontarget stimuli in comparison to placebo, with amoxapine differences again being greatest over midline parietal locations. CPT performance was significantly better on amoxapine than placebo.     

Investigation of infection with human papillomavirus in areas of high and low incidences of cervical carcinoma in Sichuan Province]

From Jan. to Oct. 1989, we investigated the role of various life style and dietary factors in areas of high and low incidences of cervical carcinoma, as well as infection with types 16 and 33 of human papillomavirus (HPV) in populations. The polymerase chain reaction (PCR) technique was used to detect the infection with HPV 16/33. The result showed that the infection rate of HPV was about 17.9% (Guangyuan, area of high incidence of cervical cancer), and the infection rate about 3.4% (Mian Zhu, area of low incidence of cervical cancer). It was clear that Guangyuan was 5-fold as the infection rate of HPV 16/33 as Mian Zhu. Strong and statistically significant associations were found to between infection rate of Guangyuan and Mian Zhu (P < 0.001). Other risk factors of cervical carcinoma, such as cigarette smoker, Vegetable intake, genital hygiene, personal hygiene etc, were also discussed and analysed in the article.