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11.
We compared the data from four growth hormone (GH) immunoassays for analyzing 24-h GH profiles in four apparently normal subjects and four obese subjects (508 serum samples). The detection limit was 0.02 microgram/L for one immunochemiluminometric assay (ICMA), 0.1 microgram/L for two IRMAs, and 0.4 microgram/L for one RIA. All GH pulses with a peak ICMA value > 1 microgram/L were detected by each of the other methods. Overall, the correlation coefficient between the values obtained with all four assays exceeded 0.90. However, for GH concentrations < or = 0.25 microgram/L, acceptable concordance (r2 > or = 0.80) was reached only between the ICMA and one IRMA; between the ICMA and the RIA, concordance was acceptable only for GH concentrations > or = 10 micrograms/L. In the normal subjects, the percentage of undetectable values was 0% with the ICMA but 29% with one of the IRMAs; in obese subjects, the corresponding values were 12% and 38%. 相似文献
12.
BE Volos IuM Vasil'ev LV Masliaeva IA Snegurskaia 《Canadian Metallurgical Quarterly》1994,(3-4):92-95
Studied in the course of one-stage epidemiologic survey of 1191 individuals were the threshold of gustatory sensitivity to table salt and nycterine natriuresis, relation of these indices to dietary habits, some risk factors for cardiovascular disorders and clinical parameters. Differing relations were established between gustatory sensitivity to table salt and natriuresis and age and gender of the examinees, the level of blood pressure, aggravated heredity in respect of arterial hypertension, smoking and alcohol abuse, this enabling one to embark upon a differential approach to dietetic correction of salt consumption. 相似文献
13.
I A Bukaeva L A Iakovleva B A Lapin L V Indzhiia E M Kobe 《Eksperimental?nai?a onkologii?a》1987,9(4):26-30
The results of morphological study of B- and T-cellular immunoblast baboon lymphomas are presented. Differences are found both in the structure of tumour cells and in the histostructure of tumours as a whole. The tumor cells of B-immunoblastic lymphomas expressed mainly IgM. The tumour cells of certain T-immunoblastic lymphomas being investigated by means of monoclonal OKT4 antibodies had a surface phenotype peculiar to T-helper cells. 相似文献
14.
Livedo racemosa with cerebrovascular lesions has been described as Ehrmann-Sneddon syndrome. The etiopathogenetic factors provoking the vascular lesions, however, are of high diversity reaching from mechanical to autoimmune causes. We present a male patient with typical livedo racemosa, muscle pain and feeling of coldness of the forearms. By dermatohistopathology and magnetic resonance tomography of the brain, Ehrmann-Sneddon syndrome could be confirmed. At this time a chronic streptococcal infection could be diagnosed. Antibiotics, anticoagulants and vascularity-supplying therapy improved the clinical and subjective symptoms. Six months later, the patient developed dizziness, vision disorder, hypesthesia of the right forehead, malaise and weight loss. A further diagnostic workup including echocardiography revealed a myxoma of the left atrium. This report illustrates the association of Ehrmann-Sneddon syndrome with cardiac myxoma and points out that cardiac diagnostic examination should be included when dealing with small-vessel involvement of the brain. 相似文献
15.
针对江苏油田地层特性和地面生态环境具体情况开展了钻井液防塌性能、油层保护与环境保护的协同研究。在研制和筛选能满足环境保护要求的钻井液处理剂如润滑剂、降滤失剂和油层保护剂等的基础上,通过配方优化研制出了环境友好油层保护钻井液体系,并进行了防塌、油层保护、裂缝封堵等性能的室内评价。评价结果表明:该钻井液体系具有较强的抑制泥页岩膨胀和分散能力,渗透率恢复值大于85%,润滑性及滤失性好,而且无生物毒性,化学毒性低,易生物降解。应用该钻井液体系在江苏油田AF地区进行了现场试验,现场应用表明,该钻井液体系防塌性和油层保护效果好,各项环境指标达到农用污染标准,可直接排放,从源头控制了钻井液的污染,可进一步推广应用。 相似文献
16.
两个基于身份的数字签名方案的安全性改进 总被引:2,自引:0,他引:2
分析了文献[1]提出的两个基于用户身份的数字签名方案,发现其一般签名方案存在安全性缺陷,在此基础上建立了多重签名方案,但此方案也是不安全的。本文给出了改进的签名和多重签名方案。 相似文献
17.
18.
以十三经为调查对象,穷尽性地检索了"所为"及其相关结构的用例;对"所为"、"所为"相关结构以及二者带动词的语法语用功能作了细致详尽的探讨,梳理出了"所为"及其相关结构的意义和用法. 相似文献
19.
The dependence between the activity parameters of muscarine antagonists in the prevention of haloperidol catalepsy in rats and those in tests characterizing the interaction of ligands and various subtypes of m-cholinoceptors was studied. It was established by constructing the mathematical dependence that blockade of m1-cholinoceptors increases, while that of m2-cholinoceptors reduces the antiparkinsonian activity of the drugs. The activity of the muscarine antagonist pentiphan in the prevention of haloperidol-induced catalepsy in rats exceeds the activity of such traditional antiparkinsonian drugs as cyclodol and amedin. 相似文献
20.
LV Osadchuk VV Gul'tiaeva AA Filimonenko L Jalkanen 《Canadian Metallurgical Quarterly》1996,82(5-6):102-108
15.7% of spermatozoa were found to be abnormal in silver fox males during their first reproductive season. The total number of spermatozoa and the abnormal spermatogenesis remained unchanged during mating season. Sexual stimulation increased the testosterone level only at the beginning of the mating season. 相似文献