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The term human blood group systems is defined by the International Society of Blood Transfusion (ISBT) as systems in the human species where cell-surface antigens—in particular, those on blood cells—are "controlled at a single gene locus or by two or more very closely linked homologous genes with little or no observable recombination between them", [1] and include the common ABO and Rh ...
ABO blood group antigens present on red blood cells and IgM antibodies present in the serum. The ABO blood group system is used to denote the presence of one, both, or neither of the A and B antigens on erythrocytes (red blood cells). [ 1 ] For human blood transfusions, it is the most important of the 44 different blood type (or group ...
A complete blood type would describe each of the 45 blood groups, and an individual's blood type is one of many possible combinations of blood-group antigens. [3] Almost always, an individual has the same blood group for life, but very rarely an individual's blood type changes through addition or suppression of an antigen in infection, malignancy, or autoimmune disease.
Type A is common in Central and Eastern Europe. In countries such as Austria, Denmark, Norway, and Switzerland, about 45–50% of the population have this blood type, whereas about 40% of Poles and Ukrainians do so. The highest frequencies are found in small, unrelated populations. For example, about 80% of the Blackfoot Indians of Montana have ...
Bloody Brilliant! A History of Blood Groups and Blood Groupers (with Steven R. Pierce), AABB Press, 2016. ISBN 9781563959103 [15] The Blood Group Antigen Factsbook, 3rd ed., Academic Press, 2012. ISBN 9780240821306 [16] The Discovery and Significance of the Blood Groups (with Ian Shine), SBB Books, 2012 ISBN 978-1-59572-422-9 [17]
ABO (gene) Histo-blood group ABO system transferase is an enzyme with glycosyltransferase activity, which is encoded by the ABO gene in humans. [5][6] It is ubiquitously expressed in many tissues and cell types. [7] ABO determines the ABO blood group of an individual by modifying the oligosaccharides on cell surface glycoproteins.
The Rh blood group system is a human blood group system. It contains proteins on the surface of red blood cells. After the ABO blood group system, it is the most likely to be involved in transfusion reactions. The Rh blood group system consisted of 49 defined blood group antigens [1] in 2005. As of 2023, there are over 50 antigens among which ...
His first book on the subject, Ketsueki-gata de Wakaru Aisho (Understanding Affinity by Blood Type) became a best seller in 1971. He wrote more than ten popular books. After his death in 1981, his son, Toshitaka Nomi (October 19, 1948 – September 27, 2006) inherited the study. [2] He established the Human Science ABO Center in 2004.