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Title: Red cell membrane protein deficiencies in Mexican patients with hereditary spherocytosis
Author: Sanchez-Lopez, J.Y.
Camacho, A.L.
Magana, M.T.
Ibarra, B.
Perea, F.J.
Issue Date: 2003
Abstract: Twenty-seven families and four individual patients with hereditary spherocytosis (HS) from the northwestern region of Mexico were studied. An autosomal dominant inheritance pattern was identified in 59% of 22 families. Densitometric analysis of erythrocyte membrane proteins revealed individual protein deficiencies in 39% of the patients studied, in whom the principal altered proteins were the ? spectrins (13%), band 3 protein (10%), ankyrin (6%), 4.2 protein (6%), and the ? spectrins (3%). A predominant deficiency of spectrins has also been observed in other Latin American and Mediterranean countries. However, it is well known that deficiencies in these proteins are heterogeneous across different ethnic groups. A combined protein deficiency was observed in 52% of patients, most frequently involving the spectrins, band 3 protein, 4.2 protein, and 4.1 protein. In three subjects, no abnormalities were detected (10%). We conclude that, despite the observed heterogeneity, the principal affected proteins are essentially similar to those observed in other ethnic groups. � 2003 Elsevier Inc. All rights reserved.
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