In all, there are more than 35 blood group systems
which, in turn, have many variations.
Various antibodies of the ABO blood group systems
and the Rh factor (anti-A, anti-B, anti-D) and phenotype systems (anti-E and anti-c of phenotypes E and c) were used for the blood analysis.
International Society of Blood Transfusion has defined almost 700 erythrocyte antigens and organized 30 blood group systems
, of which ABO and Rh are most significant1.
Next to the ABO system, the Rh system, and the Kell system, are blood group systems
of clinical significance in transfusion practice.
ABO and Rhesus blood groups are the major human blood group systems
Blood type is determined by the presence of certain protein such as glycolipid and glycoprotein on the surface of red blood cells and numerous other tissues throughout the body. ABO blood group is the most important system in blood transfusion being the only one among the blood group systems
in which the antibodies are consistently and predictably present in the serum of normal person whose red cell lacks the antigen.[21,30]
ABO and Rh D are the commonly typed blood group systems
Till now about 33 blood group systems
are identified (ABO, Rh, MNS, Kell, Lewis ...).
It seems that the clinical significance of blood group systems
now extends beyond the traditional boundaries of transfusion medicine.
Although various blood group systems
have been described based on different blood group antigens, in clinical practice, the relevant blood group systems
are ABO and Rhesus.
Its prevalence is increasing in adolescents because of sedentary and unhealthy lifestyle and increasing trends towards obesity in children and teenagers.2 Previous researches have shown that high blood pressure is associated with many genetic markers and familial patterns.1 There are empirical evidences suggesting its linkage with blood groups.1 The International Society of Blood Transfusion has identified thirty-three various blood group systems
.3 Clinically, the most important system is ABO system4 which was discovered by Karl Landsteiner in 1901.
What you may not know is that there are (https://www.elsevier.com/books/the-blood-group-antigen-factsbook/reid/978-0-12-415849-8) 34 other blood group systems
with more than 300 known variants .