Abel, John Jacob, 1857–1938, American pharmacologist, b. Cleveland, grad. Univ. of Michigan, 1883, M.D. Univ. of Strasbourg, 1888. Professor of pharmacology (1893–1932) and director of the laboratory for endocrine research (from 1932) at Johns Hopkins, he is known for the isolation of epinephrine (adrenaline) in 1898 and later of insulin in crystalline form. Other contributions include the isolation of amino acids from the blood. He was a founder and editor (1909–32) of the Journal of Pharmacology and Experimental Therapeutics.
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