1993年汕头口岸入出境人员HBV感染情况分析

本文作者对汕头卫生检疫局1993年从19129名入出境人员疾病监测体检中发现的1809名HBsAg阳性者进行HBV标志物(抗-HBs、HBeAg、抗-HBe、抗-HBc)测定结果的分析,提出今后继续加强开展乙型肝炎“二对半”检测,做好乙型肝炎预防工作的意见。     

Phase II studies of Elsamitrucin in breast cancer, colorectal cancer, non-small cell lung cancer and ovarian cancer

PURPOSE:: To test the antitumor activity of Elsamitrucin in metastaticcancer of the breast, colon and rectum, non-small cell lungand ovary. PATIENTS AND METHODS:: Eligibility required histologically proven cancer. Patientswith colorectal or non-small cell lung cancer could not havereceived prior chemotherapy. Patients were entered if WHO PSwas 2 and organ functions were normal. Treatment consisted ofElsamitrucin 25 mg/m²/week given as a 5–10 min infusionfor at least 3–6 weekly doses. RESULTS:: One hundred and five patients entered the studies, 97 were eligible,94 are evaluable for toxicity and 75 for response. Toxicitymainly consisted of mild nausea/vomiting, and less frequentlyreversible hepatotoxicity and malaise. No objective responseswere seen. CONCLUSION:: Elsamitrucin at this dose and schedule is not an active drugin metastatic breast cancer, colorectal cancer, non-small celllung cancer or ovarian cancer. Elsamitrucin, phase II, breast, colorectum, nonsmall cell lung, ovary     

子宫颈癌组织细胞凋亡、增殖细胞核抗原及P53蛋白表达的实验研究

目的：探讨细胞凋亡及增殖细胞核抗原（ＰＣＮＡ）与子宫颈癌的关系。方法：采用原位末端标记法（ＴＵＮＥＬ）检测细胞凋亡,采用免疫组化技术检测ＰＣＮＡ和Ｐ５３蛋白。结果：３２例子宫颈鳞癌组织中,细胞凋亡、Ｐ５３蛋白和ＰＣＮＡ阳性率分别为６２．５０％,５３．１３％和６５．６３％。表达Ｐ５３蛋白的细胞与表达ＰＣＮＡ细胞分布区域基本一致,与细胞凋亡无明显相关性。正常子宫颈组织只有上皮组织内有少数凋亡细胞和表达ＰＣＮＡ的细胞,显微镜下每视野阳性细胞数均不超过１０％。结论：Ｐ５３蛋白可能通过促进细胞增殖,抑制细胞凋亡而参与子宫颈癌发生与发展。     

对旅行中发热症状的分析及防治措施

本文对旅行中常见的引起发热症状的发病原因(包括由病毒、细菌等各种病原体引起的感染性发热和由无菌性坏死物质的吸收及变态反应等引起的非感染性发热);由内外源性致热源及抗原—抗体复合物引起发热的机理;临床上不同疾病所引起发热的不同阶段和不同热型的各种表现;出现发热并伴有其它临床症状对临床诊断的意义等方面进行了细致的探讨。并对旅行者在旅行前的防病准备及在旅行中出现发热症状的预防和治疗提出了意见。     

两地孕产妇产前检查方案的成本效果比较

目的 探讨比较两地孕产妇产前检查成本效果的方法。方法 分别调查两地孕产妇产前检查的费用,以及选用非低出生体重儿和非早产儿发生率作为效果的评价指标,得到成本效果比(CER)值,分别作两地CER值与产检次数的回归分析。结果 CER值与产检次数呈直线关系。结论 通过对两条回归直线的假设检验可对两地成本效果作比较。     

Personal and Social Factors Influencing Age at First Sexual Intercourse

Early initiation of sexual activity is aconcern, in part because of increased risk of sexuallytransmitted diseases, including HIV, and unwantedpregnancies among young people. In this study, 241 high schoolers were administered a questionnaire toestablish the relationships between age at first sexualintercourse and personal qualities (sexual style,attractiveness, physical maturity, restraint, autonomy expectations, and attitudes to gender roles),smoking and drug use, and aspects of the social context(social activities, media impact, peer norms). Therewere few effects of sex of respondent and none in which respondents' sex impacted on age ofinitiation. Overall (and among the male sample),perceptions of greater physical maturity, greater use ofuncommon (mostly illicit) drugs, and expectations of earlier autonomy significantly differentiatedbetween early and later initiators. This group offactors tends to confirm the view that early experienceof sexual intercourse is correlated with problembehaviors and a press toward adultbehaviors. For girls, this pattern was even clearer,with use of uncommon drugs being replaced as asignificant contributor to early sexual experience byrelative lack of restraint. We conclude that the desire to achieve thetransition to adulthood at an earlier age than theirpeers constitutes a powerful incentive for young peopleto become sexually active.     

静脉滴注尼莫地平治疗急性缺血性脑梗死

发病72h内的急性缺血性脑梗死60例,分为2组。尼莫地平组30例(男性21例,女性9例;年龄59±s10a)。wk1.2给支持疗法(脱水剂,维生素C等)和尼莫地平2mg/d于5％葡萄糖液500ml内静脉滴注。wk3.4改用扩容、改善微循环,细胞活性药。wkl-4口服尼莫地平60mg.qn。对照组30例(男性23例,女性7例;年龄58±9a)。不给尼莫地平,其余同上。4wk后,前组神经功能缺损积分值较后组下降显著(P相似文献   

麻风病患者红细胞中SOD活性的测定和分析

目的　测定麻风病人血红细胞中ＳＯＤ的活性,为麻风病的诊断和治疗提供病理参数。方法　测定方法采用微量血ＳＯＤ快速测定法。结果　麻风病患者红细胞中ＳＯＤ活性（８３５．８７±５０５．２０ｕ／ｇＨｂ）明显低于健康对照组（１６６５．００±２４７．００）,差异有显著性Ｐ＜０．０１。结论　麻风杆菌需要靠ＳＯＤ所产生的游离氧残基来防止宿主的破坏,从而ＳＯＤ活性降低。     

α1-抗糜蛋白酶基因、早老素1基因 与阿尔茨海默病的相关分析

目的探讨中国汉族人中α１抗糜蛋白酶（ＡＡＣＴ）基因、早老素１（ＰＳ１）基因多态性与阿尔茨海默病（Ａｌｚｈｅｉｍｅｒｓｄｉｓｅａｓｅ,ＡＤ）的相关情况。方法应用ＰＣＲＲＦＬＰ方法,在１２３例患者和１４０例正常人中观察ＡＡＣＴ信号肽和ＰＳ１基因多态性的分布,进行关联分析。结果１ＡＤ患者与ＰＳ１基因等位基因１正关联,与等位基因２和基因型２／２负关联,但与１／１基因型无关;２ＡＡＣＴ信号肽基因多态性与ＡＤ无关联;３在三种ＰＳ１基因型中,ＡＡＣＴ信号肽基因多态性与ＡＤ均无关;４在ＡＡＣＴ基因ＡＡ、ＴＴ基因型中,ＰＳ１基因多态性与ＡＤ负关联,而ＴＡ型中ＰＳ１基因与ＡＤ无显著相关。结论中国人群中,ＡＤ与ＰＳ１基因２／２型负关联,而与ＡＡＣＴ信号肽基因多态性无关;ＡＡＣＴ信号肽和ＰＳ１基因多态性之间也无明显的相互影响。     

肾综合征出血热长爪沙鼠肾细胞,地鼠肾细胞灭活疫苗免疫效果研究

目的：观察沙鼠肾Ⅰ型灭活疫苗、地鼠肾Ⅱ型灭活疫苗的免疫效果。方法：选择在姬鼠型疫区及家鼠型疫区两个现场,以整群抽样方法,每一疫区各设一接种组和一对照组,分别研究沙鼠苗和地鼠苗的安全性,血清抗体效价和实际防病效果。结果：沙鼠苗：中强反应率２１３％（５１／３５６）、荧光抗体阳转率：基免后１００％、一年后５４１６％、加强针后两周：１００％、第三年７７４％、第四年：７２００％;中和抗体阳转率分别（时间同上）为：７０３７％、０、７３３３％、３２３０％、３２０％。全程接种（四针）疫苗保护率为１００％（全程接种者无病人,疫种三针者发病１人,对照组发病５３人）。地鼠苗：中强反应率：３９７％（５１／１２８４）、荧光抗体阳转率分别为（时间同上）：１００％、３６３６％、１００％、７７１０％、８０００％。中和抗体阳转率：５０００％、１７６５％、１００％、５１４０％、４４００％。全程接种疫苗保护率为１００％（接种者无１人发病,对照组发病９７人）。结论：两种疫苗经过四年观察认为是安全有效的,未发现有增强反应,地鼠苗实际防病效果更为显著。