ABO blood groups


Also found in: Dictionary, Thesaurus, Encyclopedia.
Related to ABO blood groups: universal donor

ABO blood groups

A system of blood grouping developed from the discoveries of Karl Landsteiner (1868–1943) in 1900. The designations are arbitrary and the four groups are A, B, AB and O. These represent the antigenic differences in the red cells, the ANTIGEN being present on the red cell membranes. Group A, B and AB people have A, B and A and B antigens, respectively, on their red cells. Group O people have no antigens and are known as universal donors, whose blood, other things being equal, may safely be transfused into anyone. Group A people (about 26 per cent in Europe) have antibodies (agglutinins) to B in their serum and must not be given blood with B antigens. Agglutinins cause red cells with the same letter antigens to clump together and to become useless. Group B people (about 6 per cent) have antibodies to A in their serum and must not be given blood with A antigens. Group O people (about 68 per cent) have both A and B antibodies, so must not be given either A or B blood. Group AB people have no ABO blood group antibodies in their serum and are known as universal recipients. See also RHESUS FACTOR DISEASE and KELL BLOOD GROUP SYSTEM.

ABO blood groups

A system in which human blood is classified by whether the red blood cells contain A or B antigens. Type A blood has the A antigen; type B has the B antigen, AB has both, and 0 has neither.
Mentioned in: Transfusion
References in periodicals archive ?
ABO blood group types and protection against severe Plasmodium falciparum malaria.
The ABO blood group and Plasmodium falciparum malaria in Awash Metehara and Ziway areas, Ethopia.
ABO blood group system and placental malaria in an area of unstable malaria transmission in eastern Sudan.
However, in contrast to the case with NoV, neither the G428A nonsecretor mutation, nor any of the ABO blood groups or Lewis phenotypes protected children against SaV infection.
Distribution of ABO blood groups, Lewis antigens, and FUT2 428 genotypes among SaV- infected children and healthy controls, Leon, Nicaragua, 2005-2006 * Variable No.
ABO blood groups among malaria cases from District Mandla, Madhya Pradesh.
Udomsangpetch et al (17) showed a strong association between rosette formation and ABO blood group, with group 'A' and group 'B' RBCs (A > B) forming rosettes more than group 'O' cells in each of 8 tested strains (p < 0.
An epidemiological study of G-6-PD deficiency sickle-cell haemoglobin and ABO blood groups in relation to malaria incidence in Muslim and Christian communities of Kheda, Gujarat, India.