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Transfusion
Article . 2015 . Peer-reviewed
License: Wiley Online Library User Agreement
Data sources: Crossref
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Hal
Article . 2015
Data sources: Hal
Transfusion
Article . 2015
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RH diversity in Mali: characterization of a new haplotypeRHD*DIVa/RHCE*ceTI(D2)

Authors: Ba, Alhassane; Beley, Sophie; Chiaroni, Jacques; Bailly, Pascal; Silvy, Monique;

RH diversity in Mali: characterization of a new haplotypeRHD*DIVa/RHCE*ceTI(D2)

Abstract

BACKGROUNDKnowledge of RH variants in African populations is critical to improving transfusion safety in countries with populations of African ancestry and to providing valuable information and direction for future development of transfusion in Africa. The purpose of this report is to describe RH diversity in individuals from Mali.STUDY DESIGN AND METHODSBlood samples collected from 147 individuals self‐identified as Dogon and Fulani were analyzed for Rh antigens and alleles.RESULTSThe most commonRHDallele variant wasRHD*DAU0. Five predicted partial‐D phenotypes were attributed toRHD*DAU3orRHD*DIVa. NeitherRHD*DARnorRHD*DIIIawas found. Investigation ofRHCErevealed three predicted partial‐e antigens encoded byRHCE*ce(254G)in trans toRHCE*cE. Regarding C antigen, 28 Fulani typed as C+ and 16 of 28 harbored at least oneRHCE*Ce‐D(4)‐ce, two being homozygous and predicted to show a rare RH:32,−46 phenotype. A newRHCE*ceTIwith replacement of Exon 2 byRHD(RHCE*ceTI(D2))was identified in Dogon and was identified by inheritance study to be in cis toRHD*DIVa. These samples typed C– with anti‐C polyclonal antibody and monoclonal antibodies (MoAbs) MS24, P3X2551368+MS24, and MS273, but positive with anti‐RhCe MoAb‐BS58. The same pattern was observed in sample withRHD*DIVa/RHCE*ceTI.CONCLUSIONOur survey indicated an uneven distribution ofRHvariant alleles between Dogon and Fulani, suggesting that study in well‐documented cohorts is warranted. A high incidence of predicted partial‐C phenotype encoded byRHCE*Ce‐D(4)‐cewas found in Fulani. Further study will also be needed to clarify the clinical significance of the newDIVa/ceTI(D2)haplotype encoding partial D and variant ce antigens.

Keywords

[SDV.MHEP.HEM] Life Sciences [q-bio]/Human health and pathology/Hematology, Adult, Rh-Hr Blood-Group System, Black People, Genetic Variation, Sequence Analysis, DNA, Mali, Polymorphism, Single Nucleotide, Phenotype, Gene Frequency, Haplotypes, Ethnicity, Humans, Family, Child, Alleles

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
11
Average
Average
Average
gold