Serum haptoglobin types in patients with hemoglobinopathies

Haptoglobin types were determined in 626 individuals living in the State of Sao Paulo (Brazil). Of these, 484 had Hb AA, 31 major beta thalassemia, 43 minor beta thalassemia, 14 Hb SS, and 54 Hb AS. Frequency distribution of the three most common types observed among patients with type beta thalasse...

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Detalles Bibliográficos
Autores: Moreira, H. W., Naoum, P. C.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:1990
País:Brasil
Institución:Universidade Estadual Paulista (UNESP)
Repositorio:Repositório Institucional da UNESP
Idioma:inglés
OAI Identifier:oai:repositorio.unesp.br:11449/64042
Acceso en línea:http://dx.doi.org/10.1111/j.1601-5223.1990.tb00088.x
http://hdl.handle.net/11449/64042
Access Level:acceso abierto
Palabra clave:haptoglobin
beta thalassemia
clinical article
gene frequency
hemoglobinopathy
human
race
Alleles
Brazil
Caucasoid Race
Gene Frequency
Haptoglobins
Hemoglobinopathies
Human
Negroid Race
Descripción
Sumario:Haptoglobin types were determined in 626 individuals living in the State of Sao Paulo (Brazil). Of these, 484 had Hb AA, 31 major beta thalassemia, 43 minor beta thalassemia, 14 Hb SS, and 54 Hb AS. Frequency distribution of the three most common types observed among patients with type beta thalassemia differed significantly from that observed in the Caucasian group with Hb AA. There was a significant increase in Hp 1-1, which led us to assume that these disorders participate in a selective process acting on haptoglobins and altering the equilibrium of their frequencies. This relationship was not observed when we compared patients with Hb SS and Hb AS with Black patients with Hb AA, although the type most often observed among patients with Hb SS was Hp 1-1. The distributions of Hp groups observed among Caucasian and Black patients with Hb AA were similar to those obtained by other investigators for the South and Southeast regions of Brazil, with the exception of Rio de Janeiro.