Sickle cell anemia and beta-gene cluster haplotypes in Cuba.

Abstract:

:We have studied 91 patients with SS genotype, 44 children and 47 adults. Excluding the Cameroon and atypical haplotypes, the distribution in the children's sample exhibited 43% Benin, 38% Bantu, and 3% Senegal. In adults, the sample exhibited 46% Benin, 30% Bantu, and 9% Senegal (chi 2: 13.511, 2 df, P = 0.001). When the whole sample of 198 chromosomes (SS, SC, and S/beta thal) is considered, we find that the beta s chromosome is linked 51% to the Benin haplotype, 41% with the Bantu, and 8% with the Senegal. After adjusting for the different frequencies of beta s in Africa, these numbers would predict the port of origin to be 16% from Atlantic West Africa, 37.3% from Central West Africa, and 46% from Bantu-speaking Africa. This is in direct contradiction with the historical record that establishes a higher percentage from Bantu-speaking Africa (55%) and a much lower percentage from Senegal (3.4%). The overall conclusions from these findings is that there is a loss of Bantu haplotypes in sickle cell syndromes in Cuba, particularly among adults, and that there is an excess of Senegal haplotype, also among adults. These differences might reflect the differential survival and severity of the sickle cell disease linked to these haplotypes.

journal_name

Am J Hematol

authors

Muniz A,Corral L,Alaez C,Svarch E,Espinosa E,Carbonell N,di Leo R,Felicetti L,Nagel RL,Martinez G

doi

10.1002/ajh.2830490212

subject

Has Abstract

pub_date

1995-06-01 00:00:00

pages

163-4

issue

2

eissn

0361-8609

issn

1096-8652

journal_volume

49

pub_type

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