ABO blood group - A, B, AB, O
Hh blood group - hh
HLA blood group
MNS blood group
Rh blood group - Rh positive, Rh negative
blood group is a method of classifying blood, usually refers to the red blood cell type, its The basis is whether there are certain heritable antigenic substances on the surface of red blood cells. Antigenic substances can be proteins, carbohydrates, glycoproteins or glycolipids. Usually some antigens come from the alleles of the same gene or the coding products of several closely linked genes, and these antigens form a blood group system. In humans, there are 30 blood group systems that have been discovered and recognized by the International Blood Transfusion Association, including the ABO blood group system, the Rh blood group system, the MNS blood group system, and the P blood group system. Among them, the ABO blood group system and the Rh blood group system (Ganges monkey factor) is the most important. The blood group system is of great significance to blood transfusion. Transfusion with incompatible blood types may lead to hemolytic reaction, resulting in hemolytic anemia, renal failure, shock and even death.
ABO blood type, A and B antigens (type A blood contains A antigen, type B blood contains B antigen, and type AB blood contains both A and B antigens) in vivo synthesis takes H antigen as the precursor, and the antigen of type O blood It is actually H antigen.
The Hh blood group, also known as the Bombay blood group, is a human blood group system that types blood based on the presence or absence of H antigen on the surface of red blood cells. In the first generation, a Bombay blood type male (FUT1 genotype hh, manifested as type O) was mated with a B blood group female (FUT1 genotype Hh), and his son (due to the FUT1 genotype hh, manifested as type O, but carried B etc. allele) to a woman with type A and a son with type AB blood.
HLA blood type, HLA is the English abbreviation of human leukocyte antigen, more than 144 HLA antigens have been found, these antigens are divided into A, B, C, D, DR, DQ and DP7 series.
MNS blood type, another type of blood group antigen on the red blood cell membrane is called MN antigen, that is, glycophorin A on the red blood cell membrane.
Rh blood group, those with D antigen are called Rh positive, those without D antigen are called Rh negative. People with four major blood types of red blood cells, A, B, O, and AB, have been found, and they are divided into two, Rh-positive and Rh-negative, respectively. RH-negative people cannot receive blood from RH-positive people, and RH-positive people can receive blood from RH-negative people.
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