Hematological and molecular analyses of the HbS allele among the Sudanese population

Abstract

Objective The purpose of this study was to perform hematological and molecular analyses of the HbS allele of the hemoglobin subunit beta gene in the Sudanese population. Methods This was a descriptive cross-sectional study. Hematological parameters and fetal hemoglobin (HbF) levels were assessed in all participants. Data were gathered through the use of questionnaires and laboratory investigations. The βS-globin haplotypes, S allele distributions, and hematological parameters with HbF levels were investigated using PCR-restriction fragment length polymorphism, gel electrophoresis, and a Sysmex hematology analyzer, respectively. Results According to our findings, the Bantu (BA) haplotype was found in 10.8% of participants with homozygous uncontested haplotypes, followed by Benin (BA) and Sudan (SU), each in 9.8% of participants. This Sudanese group from Northern Kordofan lacked the Arab-Indian haplotype. Two heterozygous versions of undisputed haplotypes were found in 17.3% of participants: SU/BA in 10.8% and CA/BE in 6.5%. Conclusion As a result of sickle cell anemia, this investigation found changes in hematological parameters. In the Sudanese population, a new haplotype of the S gene was discovered.

Molecular Detection of Hemoglobin O-Arab in the Sudanese Population

“…The study also revealed that, the Sudanese group from Northern Kordofan lacked the Arab-Indian haplotype and two heterozygous versions of undisputed haplotypes were found in 17.3% of participants: SU/BA in 10.8% and CA/BE in 6.5%. 8 In this study and upon beta gene (HBB) entire sequencing, five patients (5%) showed a presence of Hb O-Arab mutation ((HBB):c.364G>A (p.Glu122Lys)).…”

“…The study also revealed that, the Sudanese group from Northern Kordofan lacked the Arab-Indian haplotype and two heterozygous versions of undisputed haplotypes were found in 17.3% of participants: SU/BA in 10.8% and CA/BE in 6.5%. 8 …”