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J Infect Dis. 2002 Apr 15;185(8):1183-6. Epub 2002 Mar 20.

Protective effect of interleukin-4 -589T polymorphism on human immunodeficiency virus type 1 disease progression: relationship with virus load.

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  • 1Research Institute for Microbial Diseases, Osaka University, 3-1 Yamada-oka, Suita-shi, Osaka 565-0871, Japan.

Abstract

The interleukin (IL)-4 -589T allele bears a single nucleotide polymorphism at position -589 upstream from the open-reading frame of the IL-4 gene. To determine the influence of this allele on human immunodeficiency virus (HIV) type 1 disease, disease progression and serum virus load were assessed by IL-4 genotype in 427 white patients with known seroconversion dates who were followed in the French SEROCO cohort between 1988 and 1996. Serum virus load was 0.20 log lower during the 6-24-month plateau phase after seroconversion in patients with IL-4 -589T than in those without this allele (P=.02). Kaplan-Meier analysis survival curves showed a slower progression to clinical AIDS in carriers of IL-4 -589T (P=.04). Adjustment for early serum virus load greatly diminished the strength of this association. These results suggest that IL-4 -589T protects against HIV-1 disease progression by reducing virus load.

PMID:
11930331
[PubMed - indexed for MEDLINE]
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