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β-globin variants present in Western Sudan 

Hematology & Transfusion International Journal
Nahla Ahmed Mohammed Abderahman,1 Nassreldeen Khalid Abdelrahman Adam,2 Mohammed Ahmed Ibrahim Ahmed3


Objective: A variety of observations of the hemoglobin D (Hgb D) phenotype has occurred in association with family studies of patients with sickle cell disease. Very little is known about the occurrence and prevalence of the Hgb D variant and its impact on blood profiles among Sudanese. This study was aimed at determining the percentage of Hb D in North Darfur State, West Sudan, whose population has been shown to have hemoglobin-S (Hb S) disease. Methods: From December 2017 to August 2018, this descriptive community-based investigation was conducted. Six hundred and sixty-six (666) people were randomly selected to participate in this study. With each participant’s there was verbal consent. A questionnaire was designed to collect personal details. 5 mL of venous blood was gathered in EDTA containers. The Hb D variant was checked using Sebia Minicap Automated Capillary Electrophoresis System- USA and frequency was calculated using version 21.0 of the software package for social science (SPSS). Result: The prevalence of Hb variants was as follows: AD=0.6%, SS=2%, AS=10.5 %, and AA=86.9%. Conclusion: The prevalence of Hb D variant was 4 (0.6 %) in 666 participants from four western Sudanese tribes, beside reported of Hb SS and Hb AS.


Hb variants, HbD, north Darfur, Sudan