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Revista Cubana de Hematología, Inmunología y Hemoterapia

versión impresa ISSN 0864-0289versión On-line ISSN 1561-2996


GARCIA ROSASCO, Marcela; LIPPI, Samanta  y  VALVERDE, Juana. Frequency of blood groups A1, A2, Aint,B and O in normal subjects. Rev Cubana Hematol Inmunol Hemoter [online]. 2001, vol.17, n.3, pp.171-174. ISSN 0864-0289.

Blood cells that share characteristics with A1 and A2 are defined as A-intermediates. There are qualitative and quantitative differences in epitope A. Blood cells A1 are binded by Dolichus biflorus lectin(ant1-A1), blood cells A2 are binded by Ulex europareus lectin (anti-H) whereas Aint are indistinctively binded by both lectins in an unexpected way. Aint subjects were looked for among normal healthy individuals according to their reaction to the aforementioned lectins. Our results agree with previous remarks on the marked heterogenecity of blood cells Aint . One-thousand three hundred one samples were studied resulting in 703 from O group (54,04%); 468 from A group (35,97%); 106 from B group (8,15%); 18 from A1B (1,38%) and 6 from A2B (0,46%). The samples A were subdivided into 346 A1(73,93%), 82 A2 (17,52%) and 40 Aint (8,55%). The detection of weak subgroups within the A group has a great importance for forensic practice and the study of population's dynamics. The study of Aint variant is relevant in Population Immunogenetics because of its contribution to the knowledge of crossbreeding with Black populations

Palabras clave : BLOOD GROUPS [immunology]; IMMUNOGENETICS [methods]; GENETIC MARKERS [immunology]; ABO BLOOD GROUP SYSTEM [immunology]; POPULATION DYNAMICS.

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