Interaction between haptoglobin subtypes and AB0 blood groups in a Bengalee population

Area of Science:

• Human Genetics
• Population Genetics
• Biochemistry

Background:

• The AB0 blood group system and Haptoglobin (HP) polymorphism are important human genetic markers.
• Understanding their associations can provide insights into population genetics and disease susceptibility.

Purpose of the Study:

• To investigate the association between AB0 blood groups and Haptoglobin (HP) subtypes in a Caste Hindu population from West Bengal, India.
• To determine the allele frequencies of HP*1S and HP*2 in relation to AB0 blood groups.

Main Methods:

• Blood samples from 621 individuals were analyzed.
• AB0 blood grouping was performed using the standard agglutination test.
• Haptoglobin subtyping for the HP*1 allele was conducted using Polyacrylamide Gel Electrophoresis (PAGE).

Main Results:

• A significant association was observed between AB0 blood groups and HP subtypes.
• The HP*1S allele frequency was significantly lower in blood group 0 compared to other AB0 groups.
• A higher allele frequency of HP*1S was noted in this population, with an inverse relationship between HP*1S and HP*2 across all blood groups.

Conclusions:

• The study reveals a distinct pattern of Haptoglobin allele distribution associated with AB0 blood groups in the West Bengal population.
• The HP*1S allele appears to constitute a major portion of HP*1 alleles in blood groups A, B, and AB, more so than in blood group 0.