Molecular spectrum of alpha-thalassemia mutations in microcytic hypochromic anemia patients from Saudi Arabia.

Abstract:

AIM:To describe the molecular spectrum of alpha-thalassemia molecular defects in a population sample of Saudi Arabian patients from the eastern province. METHODS:DNA was extracted from 41 patients suffering from microcytic, hypochromic anemia. We screened the alpha-globin gene for deletional and nondeletional mutations. RESULTS:Besides the common Rightward alpha(-3.7) (64%), polyA mutation (AATAAA to AATAAG) was found (41%). The risk of developing hemoglobin H (HBH) disease in case of homozygous polyA inheritance highlights the importance of detecting such mutation. CONCLUSION:The high prevalence of polyA mutation and the lack of any clue in discerning such alpha-thalassemia defect by routine complete blood count (CBC) necessitate a strict molecular screening of all cases presenting with hypochromic microcytic anemia.

authors

Hellani A,Fadel E,El-Sadadi S,El-Sweilam H,El-Dawood A,Abu-Amero KK

doi

10.1089/gtmb.2008.0123

subject

Has Abstract

pub_date

2009-04-01 00:00:00

pages

219-21

issue

2

eissn

1945-0265

issn

1945-0257

journal_volume

13

pub_type

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