TNF microsatellite alleles may confer protection against the development of lipodystrophy syndrome in Brazilian HIV patients.

Abstract:

:The aim of this study was to evaluate the frequency of TNFa-e microsatellites and the promoter region (TNF-308 and TNF-238) in HIV/AIDS-infected patients presenting or not lipodystrophy syndrome (LS). The design is the genetic case-control association study. Microsatellite and the TNF promoter region polymorphisms were amplified by PCR and submitted to polyacrylamide gel electrophoresis. The genotypes and allele frequencies for 67 HIV-positive patients with lipodystrophy were compared with 50 HIV-positive patients with no evidence of lipodystrophy and with 131 healthy HIV-negative individuals. The presence of the TNFa5 allele could provide HIV/AIDS patients with protection against developing LS. The presence of TNF-308G allele, as well as of its homozygote TNF-308GG, were associated with susceptibility to developing LS. In addition, the presence of the haplotype TNFe3-d3-238G-308A-c1-a5-b7 suggests protection against developing that syndrome. This study highlights that polymorphic sites spanning the region nearby the TNF locus are associated with LS development in HIV/AIDS patients.

journal_name

Int J Immunogenet

authors

Silva MM,Simões RT,Castelli EC,Mendes-Junior CT,Deghaide NH,Tsuda LC,Machado AA,Donadi EA,Fernandes AP

doi

10.1111/j.1744-313X.2010.00937.x

subject

Has Abstract

pub_date

2010-10-01 00:00:00

pages

379-85

issue

5

eissn

1744-3121

issn

1744-313X

pii

EJI937

journal_volume

37

pub_type

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