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Edward A. Doisy

Karthi by Karthi
November 13, 2022
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November 13th

  • Edward Adelbert Doisy was an American biochemist who shared (with Henrik Dam) the 1943 Nobel Prize for Physiology or Medicine for his isolation and synthesis of vitamin K, a substance that encourages blood clotting (1939).
  • Doisy and his associates isolated the sex hormones estrone (theelin, 1929; the first estrogen to be crystallized), estriol (there lol, 1930), and estradiol (dihydrotheelin, 1935).
  • In 1936-39 he isolated two forms of the vitamin, (K1 from lucerne seed and K2 from fish meal, in a pure crystalline form), determined their chemical structures, and synthesized the vitamin.
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