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Type: Artigo de periódico
Title: Effect of alpha-thalassemia and beta-globin gene cluster haplotypes on the hematological and clinical features of sickle-cell anemia in Brazil
Author: Figueiredo, MS
Kerbauy, J
Goncalves, MS
Arruda, VR
Saad, STO
Sonati, MF
Stoming, T
Costa, FF
Abstract: To compare the features of sickle-cell anemia in Brazil with those in other locales, we studied the effects of the beta-globin-like gene cluster haplotype and alpha-thalassemia upon the clinical and hematological features in 85 patients, The distribution of haplotypes differed from that in the United States and Jamaica, The Central African Republic (CAR) haplotype predominated; 34% of patients were CAR haplotype homozygotes, 45% CAR/Benin homozygotes, and 71% Benin homozygotes. No Senegal haplotype chromosomes were observed, alpha-thalassemia was present in 17.5% of patients, HbF levels were higher in Benin homozygotes, compared with the other two groups (P < 0.05). Nearly half the patients with a CAR haplotype had leg ulcers, compared to 12.5% of the Benin homozygote group; stroke did not occur in alpha-thalassemia carriers, but neither result was statistically significant. As in other studies, our results indicate that the CAR haplotype may be associated with more severe disease. (C) 1996 Wiley-Liss, Inc.
Subject: sickle-cell disease
clinical features
hemoglobin S
Editor: Wiley-liss
Citation: American Journal Of Hematology. Wiley-liss, v. 53, n. 2, n. 72, n. 76, 1996.
Rights: fechado
Identifier DOI: 10.1002/(SICI)1096-8652(199610)53:2<72
Date Issue: 1996
Appears in Collections:Unicamp - Artigos e Outros Documentos

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