Frequency of ABO, A-sub group and Rhesus Blood group among Elgamoia Sudanese ethnic group in Khartoum state 2011

Abstract

This is a descriptive, prospective and analytical study that aimed to determine the frequency of ABO, A-sub group and Rhesus blood group antigens and phenotypes among El-gamoia ethnic group in A Khartoum state. This study was conducted during the period of six month (January – June 2011), following informed consent , A total of 100 venous blood samples were collected in 2.5ml EDTA blood container from un related individuals. The samples were tested for ABO blood group antigens and A-sub group by direct a slide method , while for the Rhesus blood group antigens the sample were tested by tube method. Du technique was performed for each Rh (D) negative sample. The result obtained from this study showed that in ABO blood group system the A antigen was the commonest antigen with the frequency of (43%), followed by O antigen (37%),B antigen (17%) and the least common was AB antigen (3%).In A-sub group A1antigen had the highest frequency (40%), while both A2 and A1B were the rarest with same frequency (3%). In Rhesus blood group antigens the frequency of c antigen was (100%) which was the highest frequency followed by e antigen (98%) , D antigen (96%), C antigen (87%) and E antigen (49%) which was the lowest frequency . The result of this study when compared with the results of other Sudanese ethnic groups in the same systems and were found that there were similarity in some ABO blood group and Rhesus antigens with the Danagla , Shaigia and Miseria. And difference with the Hadndwa, Zagawa, Mahas and some other populations such as Whites population , England , Indian, South Africa and Turkey. This study concluded that the similarity between Sudanese tribes that living in one area resulting from inter action and intermarriage between them .