A longitudinal study of semen quality in pesticide spraying danish farmers

It was hypothesized that occupational exposure to pesticides during a spraying season causes changes in semen quality that might be detected in a longitudinal study. We analyzed the within-person changes in semen quality and reproductive hormones across a spraying season in groups of farmers using and not using pesticides. A total of 248 men collected two semen samples (participation rate: 32%). The median sperm concentration declined significantly from the first to the second sample in both groups, but there was no statistical difference in the decline between the two groups, unadjusted or adjusted. Only minor changes were found in sperm morphology, vitality, motility, sperm chromatin denaturation (SCSA), and reproductive hormones, and the differences in changes between the two groups were nonsignificant, or, in the opposite direction to the expected. There was no relation between the changes in sperm parameters in relation to pesticide exposure variables. In conclusion, use of pesticides by Danish farmers is not a likely cause of short-term effects on semen quality and reproductive hormones.     

1600例住院病人死亡原因分析

[目的 ]探讨 160 0例住院病人的死亡原因及其分布特征 .[方法 ]收集 1995年 1月至 2 0 0 2年12月间 160 0例我院住院死亡病人资料 ,对死亡疾病构成比率、男女主要疾病死亡构成比率、汉族和朝鲜族主要疾病死亡构成比率及年龄构成比率进行统计 .[结果 ] 160 0例死亡病例的死亡原因中脑血管疾病占 2 4 9% ,恶性肿瘤占 2 3 4% ,消化系统疾病占 13 7% ,意外伤害和中毒占 10 3 % ,心血管疾病占9 2 % ;男性与女性主要疾病死亡分布不同 ,两者间有非常显者性差异 ;汉族与朝鲜族主要疾病死亡分布不同 ,两者间亦有非常显者性差异 ;年龄构成比中 61～ 70岁居首位 ,占 2 6 6% ,51～ 60岁占 18 0 % ,41～ 50岁占 16 8% ,71～ 80岁占 15 8% ,3 1～ 40岁占 10 8% .[结论 ]住院死亡的疾病构成因性别及民族不同 ,其分布不同     

更年期综合征相关因素研究

目的：探讨更年期综合征发生的相关因素。方法：用Kupperman改良量表、艾森克人格问卷（EPQ）、生活事件量表（LES）、世界卫生组织生命质量测定量表简表（WHOQOL-BRIEF）、抑郁自评量表（SDS）、焦虑自评量表（SAS），对84例年龄在45-55岁的妇女进行调查，并测定其生殖激素。结果：Kupperman改良量表评分总分与各因子分相关系数（r）如下：LES总分（0．709）、LES负性值（0．700）、WHOQOL-BRIEF中的生理分量表（-0．683）、SDS（0．642）、SAS（0．630）、WHOQOL-BRIEF中的心理分量表（-0．548）、EPQ-N（0．546）、WHOQOL-BRIEF中的社会关系分量表（-0．449）、WHOQOL-BRIEF中的环境分量表（-0．358）、泌乳素（0．298）、LES正性值（0．223）。结论：更年期综合征的发生不仅仅与激素的改变有关，而是生物、社会、心理等多方面的综合因素共同作用的结果。     

A typological model of schizophrenia based on age at onset,sex and familial morbidity

We investigated the age at onset distributions of schizophrenia in men and women and the relationship of age at onset and sex to the familial rates of schizophrenia and manic-depression in data from a Swedish family study of 270 schizophrenic probands. On the logarithmic scale, the age at onset distribution of schizophrenia in both male and female relatives was bimodal, suggesting that broadly defined schizophrenia may be a mixture of 2 (probably related) disorders. The risk of schizophrenia in relatives decreased as a function of the age at onset of the proband, irrespective of the sex of the proband or relative. In contrast, the risk of manic-depression was significantly higher in relatives of female probands with an age at onset in the twenties than in relatives of female probands with earlier or later onset, or in relatives of male probands. This suggests a third disorder related to affective psychosis, with an intermediate age at onset and female preponderance.     

超声引导下注射皮质类固醇治疗狭窄性腱鞘炎

目的 探讨超声引导下注射皮质类固醇治疗狭窄性腱鞘炎的方法及效果。方法 38例狭窄性腱鞘炎患者,按药物注射方法的不同随机分成2组。治疗组(21例)在10-MHz超声引导下向腱鞘内腱周间隙内穿刺注射醋酸强的松龙0.6 ml,对照组(17例)采用闭合穿刺法注射等量药物。注射前及随访时(注射后3周)测定疼痛强度视觉类比评分(Visual analogue score,VAS)。结果 随访时疼痛消失率治疗组为81％、对照组为53％,VAS下降值治疗组为[(6.8±1.9)x±s,下同]对照组为(5.1±3.0)。结论超声引导下将针尖穿刺于腱鞘内腱周间隙的操作简单、准确并可实时观察药物的分布,是治疗狭窄性腱鞘炎的较好方法。     

老年冠心病病人血清甲状腺激素与血脂水平的检测

①目的　探讨老年冠心病病人血清中甲状腺激素水平及与血脂的关系。②方法　测定 30例正常对照者及 4 7例冠心病病人血清中总胆固醇 (TC)、三酰甘油 (TG)、高密度脂蛋白 (HDL)、低密度脂蛋白 (LDL)、载脂蛋白A1、载脂蛋白B、游离三碘甲状腺原氨酸 (FT3 )、游离甲状腺素 (FT4)、促甲状腺素 (TSH)水平。③结果　冠心病组FT3 、HDL、载脂蛋白A1明显低于正常对照组 (t=4 .12 4～ 5 .910 ,P <0 .0 1) ;FT4、TSH、TG、TC两组间比较无显著性差异 (t=1.4 33～ 1.85 4 ,P >0 .0 5 ) ;LDL与载脂蛋白B明显高于正常对照组 (t=3.70 5、7.6 5 0 ,P <0 .0 1)。冠心病病人FT3 、FT4与TC、TG无相关性 (r=- 0 .0 5 9～ - 0 .0 0 3,P >0 .0 5 ) ,与HDL、载脂蛋白A1呈正相关 (r =0 .32 8～ 0 .72 0 ,P<0 .0 1) ,与LDL、载脂蛋白B呈负相关 (r=- 0 .80 2～ - 0 .4 0 7,P <0 .0 5 )。④结论　冠心病病人存在FT3 下降 ,甲状腺激素水平下降可影响脂蛋白的正常代谢。     

宫、腹腔镜联合诊治性腺发育不全6例报告

目的：探讨宫、腹腔镜联合诊治性腺发育不全的作用及性腺发育不全的镜下特点。方法：对6例性腺发育不全患者进行宫、腹腔镜检查及腹腔镜下切除的性腺病例资料进行分析。结果：6例均为女性外阴,含有Y染色体,性激素低,5例骨龄明显低于同龄,3例为xo/xy性腺发育不全,3例为xy单纯性性腺发育不全,性腺均位于腹腔内,5例宫腔镜下见有宫颈,2例合并腹股沟斜疝,1例因B超未见子宫外院诊为CAIS,1例xo/xy性腺发育不全者性腺合并性腺母细胞瘤（16.67%）。结论：宫、腹腔镜是鉴别性腺发育不全抑或性激素及功能异常较好的诊断手段,且腹腔镜下观察清晰,在镜下切除性腺组织简单易行,可防止性腺发生病变。     

缺血预处理对心脏瓣膜置换手术围术期甲状腺激素代谢的影响及临床意义

目的 :了解缺血预处理对心脏瓣膜置换手术围术期甲状腺激素 (TH)代谢的影响及临床意义。方法 :选取 16例风湿性心脏病 (风心病 )瓣膜置换手术患者 ,随机均分为实验组 (IP组 )及对照组 (C组 ) ,IP组采取缺血预处理方案 ,对照组不采取预处理 ,其余同IP组。分别于术前、转流中 (最低温 )、再灌注后 5min ,停机、术后 2 ,2 4 ,4 8h采取血样 ,测定血清总三磺甲状腺原氨酸 (TT3 )、总四碘甲状腺原氨酸 (TT4)、游离三磺甲状腺原氨酸 (FT3 )、游离四碘甲状腺原氨酸 (FT4)、促甲状腺激素 (TSH)浓度 ,组内各时点与术前 ,两组之间各时点进行配对比较。结果 :TT3 和FT3 水平在转流最低温时降至最低点 ,术后 4 8h仍低于术前 ,但IP组术后 2 4～ 4 8h二者水平明显高于对照组 (均P <0 .0 5 ) ,两组T4,FT4水平术后 2 4h已恢复术至前水平 ,各时点间无明显差异 ;TSH水平术后 4 8h两组均低于术前 ;IP组无严重并发症发生 ,对照组有 2例发生低心排。结论 :风心病瓣膜置换手术围术期呈现低T3 综合征 ;缺血预处理可以减轻瓣膜置换手术围术期低T3 综合征的严重程度 ,有利于心功能的恢复     

不同性别飞行学员人格特征的比较

目的 :探讨男女飞行学员人格特征的差别 ,为选拔战斗机女飞行员提供心理选拔方法的参照 .方法 :女学员组为某飞行学院 2 2名女飞行学员 ,男学员组为同一飞行学院 4 3名男飞行学员 .采用卡特尔 16种个性因素测验 (16PF) ,应用DXC多项心理测评仪进行集体测试 .结果 :在 16PF的 2 4个分析项目中 ,情绪的稳定性 (C)、兴奋性 (F)、敢为性 (H)、怀疑性 (L)、紧张性 (Q4)、适应与焦虑、内向与外向等 7个因子分男学员和女学员有显著差异 (P <0 .0 5或P <0 .0 1) ,其中在稳定性、兴奋性、敢为性和外向性等 4个因素上 ,女学员的分数显著高于男学员 (P <0 .0 5或P <0 .0 1) ;而在怀疑性、紧张性、焦虑性等 3个因子分上则是男学员显著高于女学员(P <0 .0 5或P <0 .0 1) .结论 :女飞行学员的个性特点是情绪稳定 ,轻松兴奋 ,冒险敢为 ,适应环境 ,趋于外向 ,紧张困扰和焦虑较少 .本调查结果表明 ,女飞行学员的人格特征基本符合战斗机飞行员人格结构的要求     

Sex,stress, and health: Does stress predict health symptoms differently for the two sexes?

Objectives: Previous studies have been inconsistent with regard to the extent to which stress perception, rather than stressor exposure, predicts negative health symptoms. Because sex differences have been observed in all three of these variables, in this study the possibility that sex differences also exist in the relationships between them is investigated. Methods: Self‐report inventories of perceived stress, stressor exposure, and negative health symptoms were given to 107 young‐adult participants (65 females, 42 males). Results: Sex differences were observed in the associations among perceived stress, stressor exposure, and negative health symptom rates. Specifically, while higher perceived stress and higher stressor exposure rates independently predicted higher negative health symptoms rates in females, only higher stressor exposure rates independently predicted higher negative health symptoms in males. Indeed, unexpectedly, after controlling for exposure to stressors there was a trend towards higher perceived stress predicting lower negative health symptoms in males. Conclusions: While exposure to stress was a significant negative predictor of health for both sexes, perception of stress was predictive only for females. One implication of this finding is that different psychological models are needed to predict health symptoms in the two sexes. Copyright © 2005 John Wiley & Sons, Ltd.