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BIBTEX RIS

The expression of ABH and Lewis antigens in Brazilian semi-isolated Black communities

2002; Brazilian Society of Genetics; Volume: 25; Issue: 3 Linguagem: Inglês

10.1590/s1415-47572002000300001

ISSN

1678-4685

Autores

Tereza Cristina de Oliveira Corvelo, Délia Cristina Figueira Aguiar, Fernanda do Espírito Santo Sagica,

Tópico(s)

Neonatal Health and Biochemistry

Resumo

The expression of the ABH and Lewis blood groups was determined in blood and saliva samples from two semi-isolated Black communities of Northern Brazil: Cametá and Alcântara. The distributions of ABO blood group phenotypes and the ABH secretor status frequencies showed no significant differences between these populations. In contrast, there was a difference regarding the frequency of the red blood cell Le(a-b-) phenotypes, associated with erythrocyte/saliva discordance, as confirmed by the observation that individuals with Le(a-b-) red cells have the Lewis antigen in their saliva, resulting in a nongenuine Le(a-b-) phenotype, whose frequency was higher in Alcântara.

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