British researchers discovered a new blood group system, MAL, linked to the rare AnWj antigen, solving a 50-year mystery.

British researchers have identified a new blood group system, MAL, linked to the rare AnWj antigen, solving a 50-year mystery. This discovery by NHS Blood and Transplant and the University of Bristol reveals that mutations in the MAL gene cause AnWj negativity. The finding aids in identifying rare patients and developing new genotyping tests, ultimately reducing risks associated with blood transfusions for those who lack compatible blood types.

September 16, 2024
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