Virulence properties of Escherichia coli 83972, a prototype strain associated with asymptomatic bacteriuria

被引：55
|
作者：
Hull, RA [1 ]
Rudy, DC
Donovan, WH
Wieser, IE
Stewart, C
Darouiche, RO
机构：
[1] Baylor Coll Med, Dept Microbiol & Immunol, Houston, TX 77030 USA
[2] Univ Texas, Hlth Sci Ctr, Dept Phys Med & Rehabil, Houston, TX USA
[3] Univ Texas, Hlth Sci Ctr, Div Urol, Houston, TX USA
[4] Baylor Coll Med, Inst Rehabil & Res, Houston, TX 77030 USA
[5] Baylor Coll Med, Dept Phys Med & Rehabil, Spinal Cord Injury Serv, Houston, TX 77030 USA
[6] Baylor Coll Med, Dept Med, Infect Dis Sect, Houston, TX 77030 USA
[7] Vet Adm Med Ctr, Houston, TX 77211 USA
来源：
INFECTION AND IMMUNITY | 1999年 / 67卷 / 01期
关键词：
D O I：
10.1128/IAI.67.1.429-432.1999
中图分类号：
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号：
100102 ;
摘要：
Little is known about bacteria associated with asymptomatic bacteriuria (ABU) with regard to urinary tract colonization mechanisms. In this study, virulence properties of Escherichia coli 83972, a strain that was isolated from a clinical ABU episode, were examined. The genetic potential for expression of P and type 1 pill was demonstrated, and DNA sequences related to type 1C and G (UCA) pilus genes were also detected. However E. coli 83972 did not express D-mannose-resistant or D-mannose-sensitive hemagglutination after growth under standard conditions in vitro or upon isolation from the urine of colonized test subjects. Limited uroepithelial cell adherence was observed in vivo, and weak D-mannose-sensitive hemagglutination was detected after extended growth in urine in vitro.
引用
收藏
页码：429 / 432
页数：4
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