Immunochemical Studies on Blood Group A Substance from Human Hair

    November 1977 in “ International Journal of Legal Medicine ”
    Koichiro Kishi, Shoei ISEKI
    TLDR Human hair contains a substance that shows blood group A activity.
    The study extracted blood group A-active substances from human hair using methanol-ethyl ether or chloroform-methanol. The serological activity of these substances was destroyed by an A-decomposing enzyme from Clostridium tertium, which led to the development of blood group H activity. This indicated that the hair extract contained a blood group A-active glycolipid with N-acetylgalactosamine as the non-reducing sugar.
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