Hypertension, Vol 19, 400-402, Copyright © 1992 by American Heart Association
M Gerbase-DeLima, MA Ladalardo, JJ DeLima, HB Silva, G Bellotti and F Pileggi
Data from a previous study concerning the distribution of human leukocyte
antigen (HLA) haplotypes in siblings with essential hypertension suggested
that at least one of the genes responsible for the genetic susceptibility
to this disease is located in or near the HLA complex. The objective of the
present study was to investigate if a given HLA-A, B, or DR gene could
represent a marker for susceptibility to essential hypertension at the
population level. Thus, the frequencies of HLA antigens were determined in
Caucasian patients with essential hypertension (HLA-A and B antigens were
determined in 89 cases, 85 of which were also typed for HLA-DR antigens).
The results showed an increased frequency (p = 0.00064) of HLA-DR4, which
was present in 34% of the patients and in 16% of local ethnically matched
control subjects. We conclude that HLA-DR4 may represent a marker for
susceptibility to essential hypertension in the Brazilian Caucasian
population.
ARTICLES
Essential hypertension and histocompatibility antigens. An association study
Escola Paulista de Medicina, Hospital das Clinicas, Faculdade de Medicina, Universidade de Sao Paulo, Brazil.
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