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- W2055898731 endingPage "e8300" @default.
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- W2055898731 abstract "Background Although several studies suggest that genetic factors are associated with human UTI susceptibility, the role of DNA variation in regulating early in vivo urine inflammatory responses has not been fully examined. We examined whether candidate gene polymorphisms were associated with altered urine inflammatory profiles in asymptomatic women with or without bacteriuria. Methodology We conducted a cross-sectional analysis of asymptomatic bacteriuria (ASB) in 1,261 asymptomatic women ages 18-49 years originally enrolled as participants in a population-based case-control study of recurrent UTI and pyelonephritis. We genotyped polymorphisms in CXCR1, CXCR2, TLR1, TLR2, TLR4, TLR5, and TIRAP in women with and without ASB. We collected urine samples and measured levels of uropathogenic bacteria, neutrophils, and chemokines. Principal Findings Polymorphism TLR2_G2258A, a variant associated with decreased lipopeptide-induced signaling, was associated with increased ASB risk (odds ratio 3.44, 95%CI; 1.65–7.17). Three CXCR1 polymorphisms were associated with ASB caused by gram-positive organisms. ASB was associated with urinary CXCL-8 levels, but not CXCL-5, CXCL-6, or sICAM-1 (P≤0.0001). Urinary levels of CXCL-8 and CXCL-6, but not ICAM-1, were associated with higher neutrophil levels (P≤0.0001). In addition, polymorphism CXCR1_G827C was associated with increased CXCL-8 levels in women with ASB (P = 0.004). Conclusions TLR2 and CXCR1 polymorphisms were associated with ASB and a CXCR1 variant was associated with urine CXCL-8 levels. These results suggest that genetic factors are associated with early in vivo human bladder immune responses prior to the development of symptomatic UTIs." @default.
- W2055898731 created "2016-06-24" @default.
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- W2055898731 date "2009-12-15" @default.
- W2055898731 modified "2023-10-02" @default.
- W2055898731 title "Genetic Variation of the Human Urinary Tract Innate Immune Response and Asymptomatic Bacteriuria in Women" @default.
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- W2055898731 doi "https://doi.org/10.1371/journal.pone.0008300" @default.
- W2055898731 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/2788705" @default.
- W2055898731 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/20016852" @default.
- W2055898731 hasPublicationYear "2009" @default.
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