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排序方式: 共有1421条查询结果,搜索用时 31 毫秒
1.
Pamela H. Orr Victor Dong Marlis L. Schroeder Malcolm R. Ogborn 《Pediatric nephrology (Berlin, Germany)》1995,9(5):612-613
P1 blood group positivity has been postulated as a host factor which may provide protection against the development of post-enteropathic hemolytic uremic syndrome (HUS). In this study, blood group status in 20 Inuit survivors ofEscherichia coli 0157: H7-associated HUS was compared with age-and sex-matched controls from the same community who had experienced uncomplicated diarrheal illness due to the same pathogen. Of 20 HUS survivors, 6 were P1 antigen positive compared with 8 of the 20 controls (P=0.7). We conclude that P1 antigen positivity was not protective against HUS in this population. Further studies of this condition to clarify the role of host factors in verotoxin-induced endothelial damage are indicated. 相似文献
2.
Sucrose-dependent accumulation of oral streptococci and their adhesion-defective mutants on saliva-coated hydroxyapatite 总被引:1,自引:0,他引:1
The adhesion and accumulation of oral streptococci on saliva-coated hydroxyapatite was examined in strains representing species that appear in initial plaque ( Streptococcus sanguise FC1 and Streptococcus oralis C5) and in more mature plaque ( Streptococcus gordonii G9B). Washed cells of strains FC1 and C5 did not attach better to saliva-coated hydroxyapatite than did strain G9B, suggesting that the degree of initial adhesiveness does not alone account for the temporal appearance of these bacteria in dental plaque. Growing cells of each strain were also examined for their ability to accumulate on saliva-coated hydroxyapatite. The addition of sucrose to the medium promoted the accumulation of strain G9B more than it promoted the accumulation of strains FC1 and C5. Sucrose also enhanced the accumulation of adhesion-defective mutants of each strain to levels similar to those of the respective parent strains. These results suggest that sucrose-dependent accumulation may facilitate the colonization of the tooth surface by these species of oral streptococci when adhesion is limited by reduced bacterial adhesiveness or limited pellicle-binding sites. 相似文献
3.
A. Bryskier 《Clinical microbiology and infection》2002,8(2):65-69
The worldwide spread of erythromycin A-resistant streptococci, including Streptococcus pneumoniae , is of concern. Many studies have demonstrated that the viridans group streptococci can be a reservoir of erythromycin A resistance. Within oral streptoccoci, an important difference in the susceptibility pattern has been noted. The purpose of this short editorial is to highlight the importance of this group of bacteria as a reservoir of resistance to erythromycin A and the possible transfer of resistance to S. pneumoniae and S. pyogenes. 相似文献
4.
ABO血型不合的异基因造血干细胞移植--2例报告附文献复习 总被引:2,自引:1,他引:1
探讨ABO血型不合的异基因造血干细胞移植 (Allo -HSCT)的造血问题。方法 :对 2例患者分别进行异基因外周血造血干细胞移植 (Allo -PBSCT)及脐血造血干细胞移植 (CBSCT) ,用血细胞分离机或 6 %羟乙基淀粉去除移植物中的红细胞 ,定期检测受者血型 ,根据情况输注血细胞。结果 :2例患者全部获得造血重建 ,未出现溶血反应。结论 :ABO血型不合可以进行Allo -HSCT ,去除供者移植物中的红细胞能有效地防止急性溶血反应的发生 ,定期检测受者血型 ,及时调整输血方案有重要的临床意义。 相似文献
5.
B. J. M. Vlaminckx W. van Pelt J. F. P. Schellekens 《Clinical microbiology and infection》2005,11(7):564-568
A nationwide laboratory-based surveillance system for invasive group A streptococcal (GAS) infections was conducted in The Netherlands from March 1992 until December 2003. Until 1996, all isolates submitted were evaluated clinically and demographically. During this period there was a transition from passive to active surveillance for some of the participating laboratories, corresponding to a national coverage of 50%. During active surveillance, participating laboratories submitted twice as many isolates from invasive GAS disease, whereas the relative submission of isolates representing very severe manifestations (toxic shock-like syndrome, fatality) did not increase. From 1997 onwards, invasiveness was defined solely on the basis of source of isolation (without clinical evaluation). During the period of microbiological and clinical evaluation, microbiological evaluation alone was found to be specific (> 99%), but had limited sensitivity (66%). Estimation of the true rate of invasive GAS disease should be based on an active surveillance system with inclusion of both microbiological and clinical data. 相似文献
6.
目的:考察两性霉素B/聚乙二醇-聚谷氨酸(AmB/PEG-PBLG)纳米球是否能降低AmB的溶血毒性.方法:超微透析法制备AmB/PEG-PBLG纳米药球,用紫外分光光度法测定样品的溶血率.结果:AmB/PEG-PBLG纳米药球平均粒径142.1 nm,载药量27.55%;溶血率从低到高依次为:PEG-PBLG空白纳米球、脱氧胆酸钠、AmB/PEG-PBLG纳米药球、AmB注射液.结论:AmB/PEG-PBLG纳米药球能有效降低AmB的溶血毒性. 相似文献
7.
Cardiomyopathy: a late complication of hemolytic uremic syndrome 总被引:2,自引:0,他引:2
Amanda M. Walker Lee N. Benson Greg J. Wilson Gerald S. Arbus 《Pediatric nephrology (Berlin, Germany)》1997,11(2):221-222
This report describes a child who presented with classic hemolytic uremic syndrome (HUS) and 4 months later developed a life-threatening
but reversible cardiomyopathy with global cardiac dysfunction and a left ventricular ejection fraction of 14%. There was no
evidence of electrolyte abnormalities, anemia, hypertension, severe fluid overload, or viral infection. Endomyocardial biopsies
were consistent with a dilated cardiomyopathy. This paper highlights the importance of considering the diagnosis of associated
cardiomyopathy when presenting with late-onset edema following HUS.
Received February 12, 1996; received in revised form and accepted August 22, 1996 相似文献
8.
Mary Ellen Turner Kanwal Kher Tamara Rakusan Lawrence D’Angelo Sudesh Kapur Dena Selby Patricio E. Ray 《Pediatric nephrology (Berlin, Germany)》1997,11(2):161-163
We describe the clinical and pathological findings of the hemolytic uremic syndrome (HUS) in two children with human immunodeficiency
virus (HIV) infection. Both patients presented with microangiopathic hemolytic anemia, thrombocytopenia, and subsequently
developed renal failure. The diagnosis of HUS was confirmed by renal histopathology in both patients. None of these children
presented with bloody diarrhea, evidence of circulating antibody response to Escherichia coli O157 lipopolysaccharide, or other known risk factors for HUS, except for the presence of HIV infection. Each patient was
treated with intravenous plasma infusion and renal replacement therapy. Their clinical course was characterized by non-oliguria
and lack of significant hypertension throughout the acute phase of the disease. Despite these favorable clinical parameters,
both patients developed end-stage renal failure. The etiology of this atypical HUS characterized by poor renal survival remains
unknown and the role of HIV infection in its pathogenesis, although possible, is unclear.
Received March 5, 1996; received in revised form and accepted October 15, 1996 相似文献
9.
10.
本文报道温抗体型自身免疫性溶血性贫血20例,其中包括特殊类型“兼有冷抗体和温抗体的自身免疫性溶血性贫血”3例,伴有血小板减少性紫瘢的Fisher—Evans综合征4例。并对本病致病因素、发病年龄、临床表现及特殊类型产生机理进行了讨论。 相似文献