Abstract:
This descriptive, prospective and analytical study aimed to determine
the frequencies of Kell antigens (Kpa, Kpb), phenotypes and genotypes,
ABO blood group system phenotypes and Rhesus (D) factor.
The study was conducted in Albataheen Sudanese tribe during the
period of three months from April to July 2007, following informed
consent, a total of 100 venous blood samples were collected into 2.5 ml
EDTA container from unrelated individuals. The red blood cells were
tested for Kell antigens (Kpa, Kpb) by using the particle gel
immunodiffusion, for ABO blood group system and Rhesus (D) antigen
using saline agglutination technique and Du for the negative results.
The study showed that the O phenotype was commonest with the
frequency of (47%), followed by A (26%), B (21%) and AB (6%). The
Rhesus (D) was high frequent (96%).
In Kell blood group system the Kpb was the commonest antigen with
the frequency of (100%), while the Kpa antigen was low frequent (1 %).
The phenotype Kp (a-b+) was the high frequency (99%), Kp (a+b+) was
low frequent (1%) and the phenotype Kp (a+b-) was not found. The
genotype Kpb/Kpb was high frequent (99%), Kpa/Kpb was low frequent
(1%), and the genotype Kpa/Kpa was not found.
The result of this study were compared with the results of other
Sudanese ethnic group in the same system and were found that there were
similarities in some ABO blood group and Rh (D) factor with the
Arrakein, Alshokria, Danagala and Shaigia and there were difference with
the Halaween, Miseria and Nuba, while in the Kell blood group system
(Kpa&Kpb) there was no previous study in Sudanese ethnic group.
In conclusion there was similarity between Sudanese tribes that lived
in same area and this result from interaction and intermarriage between
them, while there were differences between the tribes that lived in
different geographical area.
