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Virulence factors and pap genotype in Escherichia coli isolates from women with acute pyelonephritis, with or without bacteremia.

Artikel i vetenskaplig tidskrift
Författare Gisela Otto
Torsten Sandberg
B I Marklund
Peter Ulleryd
C Svanborg
Publicerad i Clinical infectious diseases : an official publication of the Infectious Diseases Society of America
Volym 17
Nummer/häfte 3
Sidor 448-56
ISSN 1058-4838
Publiceringsår 1993
Publicerad vid Institutionen för invärtesmedicin, Avdelningen för infektionssjukdomar
Sidor 448-56
Språk en
Länkar www.ncbi.nlm.nih.gov/entrez/query.f...
Ämnesord Acute Disease, Adhesins, Escherichia coli, Adult, Age Factors, Antigens, Bacterial, genetics, Bacteremia, microbiology, Bacterial Outer Membrane Proteins, genetics, DNA, Bacterial, chemistry, Escherichia coli, genetics, isolation & purification, pathogenicity, Escherichia coli Infections, microbiology, Female, Genotype, Humans, Middle Aged, Pyelonephritis, microbiology, Sequence Homology, Nucleic Acid, Virulence
Ämneskategorier Infektionsmedicin

Sammanfattning

Bacteremia develops in a subgroup of patients with acute pyelonephritis. This study examined isolates of Escherichia coli from the urine and the blood of 25 bacteremic and 67 nonbacteremic women with this acute disease. P-fimbriated strains were found in 100% of bacteremic patients without complicating factors but in only 71% of nonbacteremic patients without complications (P < .05). Non-P-fimbriated strains were only found to cause bacteremia in three patients with compromising host factors. Strains from the bacteremic group and those from the nonbacteremic group did not differ significantly in terms of hemolysin or aerobactin production or of serum resistance. The P-fimbriated strains from both groups of patients carried pap DNA sequences of the papGIA2 adhesin type; prsGJ96 homologous DNA sequences were rare. The results suggested that P fimbriae and compromising host conditions independently increase the risk for bacteremia during acute pyelonephritis.

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