Born Nov. 13, 1893, in Hume, Ill., USA. American biochemist. Member of the National Academy of Sciences of the USA and of the American Academy of Arts and Sciences.
Doisy graduated from the University of Illinois in 1914. He performed research at Harvard Medical School from 1915 to 1917 and taught biochemistry at Washington University from 1919 to 1923. In 1923 he became a professor of biochemistry at St. Louis University. From 1924 to 1965, Doisy was the director of the department of biochemistry at St. Mary’s Hospital. He served as the president of the American Society of Biological Chemists from 1943 to 1945 and of the Society of Experimental Biology and Medicine from 1949 to 1951.
Doisy’s principal works deal with the metabolism of insulin, bile acids, and steroids and with the isolation and purification of vitamin K. He was the first to isolate a number of female sex hormones in crystalline form. Doisy received a Nobel Prize in 1943.