郑州市十万人皮肤病调查中银屑病132例分析

本文对十万人皮肤病调查中银屑病132例进行分析,患病率为0.13％,在所见125种皮肤病中居第七位,男女之比为1.64∶1,患病较多的年龄组为16～40,女为11～35岁。女性发病年龄高峰较男性为早,初发部位和现在皮疹分布部位均以头、肘、小腿以头部为最多,其发病诱因不明,但遗传,感染和受潮湿是比较突出的可能诱因,而饮酒,吃刺激性食物则是加重症状的因素,对银屑病病情轻重患者分别提出用药的建议。     

Mutational analysis of immunoglobulin E-binding epitopes of β-casein and β-lactoglobulin showed a heterogeneous pattern of critical amino acids between individual patients and pooled sera

BACKGROUND: For immunotherapeutic approaches, 'critical' amino acids (AAs) within allergenic epitopes are replaced with alternate AAs to eliminate IgE antibody binding. OBJECTIVE: To determine the critical AAs for IgE binding in beta-casein and beta-lactoglobulin (BLG). METHODS: Peptides of 10-14 AAs in length were synthesized on a derivatized cellulose membrane with single AA substitutions (alanine or glycine) at each position. Membranes were incubated with a pool of sera from 15 cow's milk-allergic patients and individual sera from six of the 15 patients. In cases where no decrease in binding occurred with a single AA substitution, peptides with two AA substitutions were generated and labelled. RESULTS: Using pooled patient sera, single AA substitutions led to complete elimination of binding to six of 11 peptides for beta-casein and to all six peptides for BLG. Substituting two AAs led to an elimination of binding to four of the remaining five beta-casein epitopes. However, in three of the 11 modified beta-casein peptides and five of the six BLG peptides, no decrease in IgE binding occurred in at least one individual patient. For these patients, critical AAs other than those defined by the patient serum pool were identified, indicating a heterogeneous pattern of IgE recognition. CONCLUSION: These results indicate that AAs critical for IgE binding are more heterogeneous than initially defined by pooled milk-allergic patient sera. For future immunotherapeutic interventions with mutated peptides, critical AAs should also be identified with individual patient sera to account for heterogeneity of IgE binding between patients.     

沈阳市某农村社区居民健康状况分析

目的：了解沈阳市农村社区居民健康状况及主要健康问题,为农村健康促进工作提供基础资料。方法：采用随机抽样的方法,选择东陵区某中等经济水平农村社区18岁以上成年人进行一般状况调查及健康体检。结果：本社区居民超重和肥胖、高血粘、血压异常、脂肪肝、咽炎、尿路感染、女性阴道炎检出率较高,分别为48.0%,41.5%,33.8%,27.1%,20.7%,7.0%,47.5%。结论：该社区需加强健康教育和健康促进为主导的综合干预措施,进一步促进农村社区人群健康状况。     

医院内携带的葡萄球菌对8种抗生素的敏感度

测定216株葡萄球菌(126株金葡菌,90株凝固酶阴性葡萄球菌)对8种临床常用抗生素药敏。结果为:医院内携带的金葡菌对青霉素G、红霉素、林可霉素耐药率分别为76.42%、61.36%、27.26%,对头孢噻啶、利福霉素敏感性较好。医院内表葡菌对青霉素G、红霉素、林可霉素耐药率分别达65.29%、58.82%、50%。故治疗医院内金葡菌、表葡菌感染时要选用有效药物。医院内携带的金葡菌产酶率81.40%,CNS产酶率71.11%,绝大多数产酶株对青霉素G耐药,头孢噻啶对产酶株有良好的抗菌活性。     

影响注意缺陷多动障碍患儿就诊因素的分析

目的分析探讨影响注意缺陷多动障碍（ADHD）患儿延迟就诊的因素。方法采用家庭环境量表（FES-CV）及自编简明就诊因素问卷对68例ADHD患儿的家长进行调查评定，分析影响延迟就诊的相关因素。结果61例患儿完成调查。所有因素经多元线性逐步回归分析，3个自变量差异具有统计学意义，分别为分型（Beta值：-0．449），接触知识（Beta值：0．369），父亲文化（Beta值：-0．268）。结论影响患儿就诊时间延迟的因素有3种情况，其顺序如下：（1）ADHD的注意缺陷型；（2）家长缺乏儿童心理卫重知识；（3）父亲的文化程度低。     

学龄儿童行为问题危险因素配对研究

将２１４名经Ｒｕｔｔｅｒ儿童行为问卷调查评定为有行为问题的学龄儿童与２１４名对照儿童进行了配比分析，以探讨学龄儿童行为问题的危险因素。研究结果表明，父、母文化程度和父亲职业是影响学龄儿童行为问题的重要因素；多因素条件Ｌｏｇｉｓｔｉｃ逐步回归分析结果显示父母文化程度偏低是学龄儿童行为障碍的两项独立危险因素。文中对学龄儿童行为问题的预防和矫治进行了讨论。     

Proteolytic artifacts in SDS-PAGE analysis of selected periodontal pathogen:

The aim of the study was to examine whether proteolytic artifacts, which result in a loss and poor resolution of protein bands, occur during sodium dodecyl sulfate (SDS)-polyacrylamide gel electrophoresis analysis of cellular proteins from selected proteolytic ( Porphyromonas gingivalis, Prevotella nigrescens and Treponema denticola ) and non-proteolytic ( Fusobacterium nudeatum ) bacteria. Conditions to limit or prevent proteolysis were also investigated. Bacterial cells were incubated in solubilizing buffer (SDS +β mercaptoethanol) at room temperature for various periods of time before boiling. A control assay consisted of trichloroacetic acid-treated bacterial cells. Cellular proteins were separated by electrophoresis and stained with Coomassie blue. Proteolysis occurred very rapidly in the case of P. gingivalis (<30 s), whereas a longer incubation time (>1 h) was required to observe similar effects in P. nigrescens and T. denticola. No proteolysis was observed for F. nudeatum. In all cases, heat (100°C) and low pH (<4) treatments of bacterial cells could avoid production of proteolytic artifacts. Incorporation of specific protease inhibitors before solubilization of bacteria could also prevent proteolysis. More particularly, N -α- p -tosyl- l -lysine chloromethyl ketone (TLCK), iodoacetamide and diisopropylfluorophosphate (50 mM) were highly efficient for P. gingivalis, P. nigrescens and T. denticola , respectively. When outer membranes of P. gingivalis were prepared in the presence of TLCK, numerous additional protein bands, not seen in the absence of TLCK, were detected. The present study suggests that specific protease inhibitors, effective in preventing proteolysis. should be identified and added during cell fractionation and protein purification procedures.     

小儿急性肾功能不全临床与病理分析

回顾性分析２７例急性肾功能不全患儿临床与肾脏病理变化。临床分析表明，小婴儿以药物性肾损害多见，预后差和病死率高；年长儿以肾小球疾病多见，其中急性肾炎预后好，肾病和紫癜性肾炎预后差，易发展至慢性肾功能不全。病理学研究显示肾小球大量硬化的患儿易发生慢性肾功能不全。     

Identification of the phenotype in psychiatric genetics

Summary Statistical procedures and molecular genetic techniques have attained a fine degree of resolution. Their ability to find disease genes has revolutionized medicine and raised hopes for breakthroughs in psychiatry. However, such breakthroughs may require an equally discriminating nosology. A psychiatric genetic nosology seeks to classify patients into categories that correspond to distinct genetic entities by addressing the problem of diagnostic accuracy: the degree to which a diagnosis correctly classifies people with and without a putative genetic illness. We review methods that deal with misclassification in genetic studies. These are clinical and epidemiological approaches that deal directly with how to define the observable manifestation of a putative genotype. We discuss two groups of methods: those that use known phenotypes and those that design new phenotypes.     

散发性脑炎频谱分析

目的探讨散发性脑炎患者的定量脑电图频谱分布特征及该技术临床应用的可能性。方法对４３例临床确诊的散发性脑炎和２０例健康对照组进行定量脑电图频谱分析。结果散发性脑炎组主频均数＜６Ｈｚ，与对照组比较，Ｐ＜０．０ｌ，散发性脑炎组σ、θ相对功率值均比对照组明显增高。结论定量脑电图主频分布及各频段相对功率值在诊断散发性脑炎中有一定的临床应用价值。