湘西地区高校大学生性心理健康状况及其影响因素

目的 了解湘西地区高校大学生性心理健康状况及其影响因素,为高校性教育提供理论依据。方法 采用青春期性心理健康量表对随机整群抽样的2 187名大学生进行问卷调查。结果 调查的大学生性心理健康总均分为(3.58±0.39)分,性认知评分为(3.51±0.65)分,性价值观评分为(3.77±0.55)分,性适应评分为(3.53±0.39)分。男生性认知得分为(3.61±0.63)分,高于女生的(3.43±0.65)分,(t=6.441,P<0.001),性价值得分为(3.72±0.57)分,低于女性的(3.82±0.53)分,(t=-4.297,P<0.001);本科生性心理健康各维度得分均高于专科生(t总=7.139,t性认知=6.099,t性价值=3.055,t性适应=6.870;P值均<0.01);医学生性心理健康各维度得分均高于非医学生(t总=48.746,t性认知=65.119,t性价值=52.402,t性适应=11.782;P值均<0.001);父母赞同子女恋爱性健康总分、性认知、性适应分高于反对者(t总=6.058,t性认知=6.477,t性适应=6.793;P值均<0.001);接受性健康教育时间越早各维度得分越高(F总=11.338,F性认知=10.075,F性价值=8.265,F性适应=6.483;P值均<0.01)。多元线性逐步回归分析显示,影响性心理健康总分前三位因素是:专业类别、最早接受性健康教育的时间、父母对子女谈恋爱的态度。结论 湘西地区高校大学生性心理健康状况仍待进一步提高,影响大学生性心理健康的因素是多方面的,应根据学生的不同特征及需求开展针对性的教育。     

L-NAME对肝硬化大鼠胃肠道中一氧化氮合酶亚型表达的影响

目的 研究一氧化氮合酶亚型（NOS1,NOS2,NOS3）在肝硬化大鼠胃肠道中的表达,并探讨NOS抑制剂左旋硝基精氨酸甲基酯（L-NAME）对其表达的影响。方法 制作大鼠四氯化碳中毒肝硬化模型,肝硬化模型大鼠随枘发为NO合酶（NOS）抑制剂治疗组和未治疗组,模型治疗组用L-NAME0.5mg.kg^-1.d^-1,胃内注入,每日1次,治疗10d,免疫组织化学染色显示胃肠道组织中型NOS的染色强度和分布,Western blot法检测胃肠道组织中各型NOS的表达。结果 模型组大鼠胃、小肠、结肠组织 的NOS染色强度显著弱于正常对照组和L-NAME治疗组大鼠。Western blot显示在肝硬化模型大鼠胃、小肠、结肠组织中的各型NOS表达均明显降低,L-NAME治疗后又恢复至接近正常。结论 肝硬化大鼠胃肠道组织中各型NOS的表达明显减少,L-NAME对其表达有调节作用。     

国家标准《中医病证分类与代码》应用研究：1994年全国88所？…

从全国分层承机抽样确定的８８所中医医院１９９４年１２万余份出院病例中,分析探讨中,西医双重诊断的关系及其对应规律。为提高中医临床诊断水平、强化临床医疗质控、完善医政管理提供依据。     

间接免疫荧光法及蛋白质印迹法对肺癌患者体内自身抗体的分析

目的：了解肺癌患者血清自身抗体阳性率、细胞内定位及荧光图形特点,探索自身抗体作为肿瘤樗物的可能性。方法：应用间接免疫荧光法（ｉｎｄｉｒｅｃｔ ｉｍｍｕｎｏｆｌｕｏｒｅｓｓｅｅｎｅｅ,ＩＩＦ）检测７７份肺癌以及１４０份不同年龄段正常人血清中自身抗体。提取人喉癌上皮细胞（Ｈｅｐ－２）蛋白抗原,采用蛋白质印迹法对８１份肺癌患者及５２份正常人血清进行分析。结果：肺癌组和对照组的自身抗体阳性率有显著差别,两     

小儿咽喉乳头状瘤组织人乳头瘤病毒检测及型别分析

目的：探讨人乳头瘤病毒感染和小儿咽喉乳头状瘤的关系。方法：应用ＰＣＲ和ＰＣＲ产物斑点杂交技术检测３５例小儿咽喉乳头瘤组织和１０例小儿声带小结（对照组）ＨＰＶ６、１１、１６、１８、３３五个型别的ＤＮＡ。结果：乳头瘤组织ＨＰＶ感染率为９１．４％（３２／３５）,其中ＨＰＶ６型检出率为５４．２％（１９／３５）,ＨＰＶ１１型感染率为２５．７％（９．３５）,多重型ＨＰＶ６＋１１感染率为１１．４％（４／３５）;     

碘对自身免疫性甲状腺疾病外周血单个核细胞HLA-DR表达的影响

目的 :探讨碘在自身免疫性甲状腺疾病 (AITD)发病中的作用及机制。方法 :选择具有遗传倾向疾病Graves病一级亲属的外周血单个核细胞 (PBMNC) ,采用细胞培养和免疫印迹技术 ,检测 Na I对 PBMNC HL A - DR表达的影响。结果 :Graves病一级亲属 :PBMNC HL A- DR表达量随培养液 Na I浓度增加而递增 ;而对正常无遗传倾向者 PBMNC HL A- DR表达量无影响。结论 :过多的碘可以上调有遗传倾向者 PBMNC HL A- DR表达。     

中国西部蜱类的分布及防制对策

蜱类是重要的医学媒介动物,传播多种人畜疾病,对畜牧业、野生动物和人类健康造成极大危害。本文分析了中国西部蜱类的分布,计有１１属９１种,占中国蜱类总数的８５．０４％;其中硬蜱科９属８５种,软蜱科２属６种。同时,对西部９省（自治区）的蜱种进行了分析。在此基础上,提出了蜱类防制的对策。     

Tissue-specific distribution of the Goodpasture antigen demonstrated by 2-D electrophoresis and Western blotting

The target of autoantibodies in Goodpasture's disease, the Goodpastureantigen has recently been characterized as the NC1 domain ofthe 3 chain of type IV collagen. In order to study the Goodpastureantigen in different organs, NC1 domains were isolated frombasement membranes (BM) of human glomeruli (GBM), tubules (TBM),alveoli (ABM), placenta (PBM) and aorta (VBM). NC1 preparationswere separated by 2-D electrophoresis, and silver stained orimmunoblotted to determine the subunit structure and antigenicityof different basement membranes. All basement membranes containedmonomeric components of MW 26 kDa and 24 kDa, and associateddimers, corresponding to the 2-D location of 1(IV) and cc2(IV)chains respectively. However, GBM, ABM, and to a lesser extentTBM possessed an extra set of monomeric components of MW 28kDa and associated dimers corresponding to the proposed locationof 3(IV) and 4(IV) chains. 2-D-separated polypeptides were Westernblotted with autoantibodies from patients with Goodpasture'sdisease, a monoclonal antibody to the Goodpasture antigen (P1)and a monoclonal antibody to the bovine 3(IV) chain. The predominantbinding of all these reagents was to cationic 28 kDa monomersof GBM, ABM and TBM, corresponding to the 3(IV) chain, althoughautoantibodies and P1 also bound to neutral 28 kDa monomers,corresponding to the 4(IV) chain. Autoantibodies bound weaklyto more neutral components of PBM and VBM, but neither monoclonalantibody bound to these basement membranes. This study suggeststhat there are two separate type IV collagen networks: one containingthe l(IV) and 2(IV) chains appears to be present in all basementmembranes, and the other containing the 3(IV) and 4(IV) chainshas a tissue specific distribution. The latter network bearingthe Goodpasture antigen is expressed in the basement membranesof both kidney and lung, the organs involved in Goodpasture'sdisease.     

Cancer incidence in migrants to New South Wales (Australia) from the Middle East, 1972–91

The incidence of cancer in migrants to New South Wales (NSW) from Cyprus, Egypt, Iran, Iraq, Israel, Lebanon, Syria, and Turkey has been compared with that in the Australian-born population using data from the NSW Central Cancer Registry for 1972–91. Age-standardized incidence rates showed overall cancer incidence to be less common in migrants from each Middle Eastern country than in the Australian-born. There was a clear pattern of generally low rates for cancers of the mouth and pharynx, esophagus, colon and rectum, lung (men only), ovary, prostate and testis, and melanoma. Cancers which tended to be more common in migrants were nasopharynx, stomach (women only), liver (men only), gallbladder (chiefly in women), bladder (men only), and thyroid. Breast cancer did not show a uniform pattern among migrant groups, rates being high in the Egyptian-born but low in Lebanese-born women. The overall low incidence of cancers related to tobacco and alcohol, and to a high fat, low fiber diet, emphasizes the potential role of preventable lifestyle factors in the burden of cancer in Australia.     

禁水大鼠肾脏与尿液水通道蛋白2表达的改变及意义

目的　研究禁水大鼠肾脏及其尿液AQP2 (aquaporin2 )水通道蛋白量的改变 ,阐明尿液AQP2蛋白与抗利尿激素 (ADH)的关系及其在监测机体水平衡中的作用。方法本实验通过建立禁水大鼠模型 ,用免疫组化和Western印迹分析法测定肾脏内髓及尿液AQP2的含量 ,并比较禁水组大鼠尿液AQP2含量与对照组的差别。结果禁水组大鼠肾脏AQP2蛋白表达量较正常对照组明显增加 ,且AQP2蛋白可在尿液中检测到 ,禁水时尿液AQP2含量明显增多 (P <0 0 1)。结论AQP2是机体缺水时维持机体水平衡的关键蛋白质之一 ,检测尿液AQP2含量是监测机体重吸收状况的一种较好的方法。