What is H+ blood?

hh, or the Bombay blood group, is a rare blood type. This blood phenotype was first discovered in Bombay by Dr. Y. M. Bhende in 1952. It is mostly found in the Indian sub-continent (India, Bangladesh, Pakistan) and parts of the Middle East such as Iran.

What is H gene?

The H gene encodes an enzyme that is required in the expression of the H antigen on the surface of red blood cells. Translation of the active allele, H, of the FUT1 gene results in formation of the enzyme known as α-1,2-fucosyltransferase (H is also known as FUT1 because the gene product is a FUcosyl Transferase).

What do you mean by H antigen?

Also known as substance H, H antigen is a precursor to each of the ABO blood group antigens, apparently present in all people except those with the Bombay Blood phenotype (see hh blood group) Histocompatibility antigen, a major factor in graft rejection.

What is Goldenblood?

The golden blood type or Rh null blood group contains no Rh antigens (proteins) on the red blood cell (RBC). This is the rarest blood group in the world, with less than 50 individuals having this blood group. This makes it the world’s most precious blood type, hence the name golden blood.

Is Rhesus negative rare?

In the United States, approximately 85\% of the population has an Rh-positive blood type, leaving only 15\% with Rh negative. Only people with at least one Rh-negative factors will have a negative blood type, which is why the occurrence of Rh-negative blood is less common than Rh-positive blood.

What is the role of H antigen?

The Hh blood group contains one antigen, the H antigen, which is found on virtually all RBCs and is the building block for the production of the antigens within the ABO blood group. (A transfusion of “normal” group O blood can trigger a severe transfusion reaction.)

What happens if H antigen is absent?

People who lack the H antigen do not suffer any deleterious effects, and being H-deficient is only an issue if they were to need a blood transfusion because they would require H-deficient blood.

What is the normal hemoglobin and hematocrit range?

The range of normal values was 45\% to 61\% for hematocrit and 13 to 21 g/dL for hemoglobin in the men and 41\% to 56\% for hematocrit and 12 to 19 g/dL for hemoglobin in the women.

How to determine your blood type?

Alternatively, go to a clinic and undergo a blood test to find your blood type. Most labs use the “rapid blood agglutination” test to determine an individual’s blood type. Your blood sample is tested against anti-A sera, anti-B sera and anti-Rh sera.

What is H deficient blood?

Not medical advice: H deficient blood is blood that lacks the H antigen, the building block for the production of the antigens within the ABO blood group .

What are the four types of blood?

The four blood types (A, B, AB, and O) stem from these genotypes. Blood is also typed according to something called the Rh factor. This is another antigen found on red blood cells.