Fimbriation, surface hydrophobicity and serum resistance in uropathogenic strains of Escherichia coli.
A total of 80 Escherichia coli strains were examined for expression of P-fimbriae, mannose-sensitive haemagglutination (MSHA) and mannose-resistant haemagglutination (MRHA) of human group A erythrocytes and guinea pig erythrocytes, cell surface hydrophobicity and resistance to serum bactericidal activity. Isolates were obtained from urine of children and adults, either with acute pyelonephritis (n = 15 and n 12) or lower urinary tract infection (UTI) (n = 30 and n = 23, respectively). Results obtained showed that, in E. coli strains isolated both from children and adults with lower UTI, significant differences were not found concerning the incidence of P-fimbriae, cell surface hydrophobicity and serum resistance. In pyelonephritogenic E. coli isolated from children and adults, the incidence of P-fimbriae and cell surface hydrophobicity was associated more frequently with the former (87% vs. 42% and 100% vs. 67%, P < 0.05), while serum resistance was associated with the latter (47% vs. 67%, P < 0.05).
Puzová
H
H
Institute of Medical Microbiology, Faculty of Medicine, Safárik University, Kosice, Slovak Republic.
Siegfried
L
L
Kmetová
M
M
Filka
J
J
Takácová
V
V
Durovicová
J
J
D000328:Adult; D001770:Blood Bactericidal Activity; D002240:Carbohydrate Sequence; D004926:Escherichia coli / Q000737:chemistry / Q000276:immunology / Q000502:physiology*; D010861:Fimbriae, Bacterial / Q000502:physiology*; D006386:Hemagglutination Tests / Q000379:methods; D006801:Humans; D007223:Infant; D008969:Molecular Sequence Data; D011704:Pyelonephritis / Q000382:microbiology*; D013499:Surface Properties; D014552:Urinary Tract Infections / Q000382:microbiology*