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- W2044452743 abstract "Objective: Among perinatally infected children, the effects of certain alleles of the CCR5 and CCR2 genes on the rate of disease progression remain unclear. We addressed the effects of CCR5-Δ32 and CCR2-64I in an international meta-analysis. Methods: Genotype data were contributed from 10 studies with 1317 HIV-1-infected children (7263 person-years of follow-up). Time-to-event analyses were performed stratified by study and racial group. Endpoints included progression to clinical AIDS, death, and death after the diagnosis of clinical AIDS. The time-dependence of the genetic effects was specifically investigated. Results: There was large heterogeneity in the observed rates of disease progression between different cohorts. For progression to clinical AIDS, both CCR5-Δ32 and CCR2-64I showed overall non-significant trends for protection [hazard ratios 0.84, 95% confidence interval (CI) 0.58–1.23; and 0.87, 95% CI 0.67–1.14, respectively]. However, analyses of survival showed statistically significant time-dependence. No deaths occurred among CCR5-Δ32 carriers in the first 3 years of life, whereas there was no protective effect (hazard ratio 0.95; 95% CI 0.43–2.10) in later years (P = 0.01 for the time-dependent model). For CCR2-64I, the hazard ratio for death was 0.69 (95% CI 0.39–1.21) in the first 6 years of life and 2.56 (95% CI 1.26–5.20) in subsequent years (P < 0.01 for the time-dependent model). CCR5-Δ32 and CCR2-64I offered no clear protection after clinical AIDS had developed. Conclusion: The CCR5-Δ32 and CCR2-64I alelles are associated with a decreased risk of death among perinatally infected children, but only for the first years of life." @default.
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- W2044452743 date "2003-07-01" @default.
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- W2044452743 title "Effects of CCR5-Δ32 and CCR2-64I alleles on disease progression of perinatally HIV-1-infected children" @default.
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- W2044452743 doi "https://doi.org/10.1097/00002030-200307250-00007" @default.
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