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Henrik Dam (Full name Carl Peter Henrik Dam) (21 February 1895 – 17 April 1976) was a Danish biochemist and physiologist. He was awarded the Nobel Prize in Medicine in 1943 for joint work with Edward Doisy work in discovering vitamin K and its role in human physiology. Dam's key experiment involved feeding a cholesterol-free diet to chickens.[1] He initially replicated experiments reported by scientists at the Ontario Agricultural College (OAC).[2] McFarlane, Graham and Richardson, working on the chick feed program at OAC, had used chloroform to remove all fat from chick chow. They noticed that chicks fed only fat-depleted chow developed hemorrhages and started bleeding from tag sites.[3] Dam found that these defects could not be restored by adding purified cholesterol to the diet. It appeared that—together with the cholesterol—a second compound had been extracted from the food, and this compound was called the coagulation vitamin. The new vitamin received the letter K because the initial discoveries were reported in a German journal, in which it was designated as Koagulationsvitamin. He was born and died in Copenhagen. He received an undergraduate degree in chemistry from the Copenhagen Polytechnic Institute (now the Technical University of Denmark) in 1920, and was appointed as assistant instructor in chemistry at the School of Agriculture and Veterinary Medicine. By 1923 he had attained the post of instructor in biochemistry at Copenhagen University's Physiological Laboratory. He studied microchemistry at the University of Graz under Fritz Pregl in 1925, but returned to Copenhagen University, where he was appointed as an assistant professor at the Institute of Biochemistry in 1928, and assistant professor in 1929. During his time as professor at Copenhagen University he spent some time working abroad, and in 1934 submitted a thesis entitled Nogle Undersøgelser over Sterinernes Biologiske Betydning (Some investigations on the biological significance of the sterines) to Copenhagen University, and received the degree of Ph.D. in biochemistry. Between 1942–1945 he was a Senior Research Associate at the University of Rochester; it was during this period that he was awarded the 1943 Nobel Prize for Physiology or Medicine. In 1951, he was one of seven Nobel Laureates who attended the 1st Lindau Nobel Laureate Meeting.[4] See also[edit]

University of Rochester List of Nobel Laureates affiliated with the University of Rochester

References[edit]

^ Dam H (1935). "The Antihæmorrhagic Vitamin of the Chick.: Occurrence And Chemical Nature". Nature. 135 (3417): 652–653. doi:10.1038/135652b0.  ^ Dam H (1941). "The discovery of vitamin K, its biological functions and therapeutical application" (PDF). Nobel Prize Laureate Lecture.  ^ McAlister V (2006). "Control of coagulation: a gift of Canadian agriculture" (PDF). Clin Invest Med. 29 (6): 373–377. Archived from the original (PDF) on 2010-03-06.  ^ "1st Lindau Nobel Laureate Meeting - Laureates". www.mediatheque.lindau-nobel.org. Retrieved 2018-01-09. 

External links[edit]

Henrik Dam, Nobel Prize website Henrik Dam at Archive.is (archived January 14, 2013)

v t e

Laureates of the Nobel Prize in Physiology or Medicine

1901–1925

1901 Emil Behring 1902 Ronald Ross 1903 Niels Finsen 1904 Ivan Pavlov 1905 Robert Koch 1906 Camillo Golgi / Santiago Ramón y Cajal 1907 Alphonse Laveran 1908 Élie Metchnikoff / Paul Ehrlich 1909 Emil Kocher 1910 Albrecht Kossel 1911 Allvar Gullstrand 1912 Alexis Carrel 1913 Charles Richet 1914 Róbert Bárány 1915 1916 1917 1918 1919 Jules Bordet 1920 August Krogh 1921 1922 Archibald Hill / Otto Meyerhof 1923 Frederick Banting / John Macleod 1924 Willem Einthoven 1925

1926–1950

1926 Johannes Fibiger 1927 Julius Wagner-Jauregg 1928 Charles Nicolle 1929 Christiaan Eijkman / Frederick Gowland Hopkins 1930 Karl Landsteiner 1931 Otto Warburg 1932 Charles Scott Sherrington / Edgar Adrian 1933 Thomas Morgan 1934 George Whipple / George Minot / William Murphy 1935 Hans Spemann 1936 Henry Dale / Otto Loewi 1937 Albert Szent-Györgyi 1938 Corneille Heymans 1939 Gerhard Domagk 1940 1941 1942 1943 Henrik Dam / Edward Doisy 1944 Joseph Erlanger / Herbert Gasser 1945 Alexander Fleming / Ernst Chain / Howard Florey 1946 Hermann Muller 1947 Carl Cori / Gerty Cori / Bernardo Houssay 1948 Paul Müller 1949 Walter Hess / António Egas Moniz 1950 Edward Kendall / Tadeusz Reichstein / Philip Hench

1951–1975

1951 Max Theiler 1952 Selman Waksman 1953 Hans Krebs / Fritz Lipmann 1954 John Enders / Thomas Weller / Frederick Robbins 1955 Hugo Theorell 1956 André Cournand / Werner Forssmann / Dickinson W. Richards 1957 Daniel Bovet 1958 George Beadle / Edward Tatum / Joshua Lederberg 1959 Severo Ochoa / Arthur Kornberg 1960 Frank Burnet / Peter Medawar 1961 Georg von Békésy 1962 Francis Crick / James Watson / Maurice Wilkins 1963 John Eccles / Alan Hodgkin / Andrew Huxley 1964 Konrad Bloch / Feodor Lynen 1965 François Jacob / André Lwoff / Jacques Monod 1966 Francis Rous / Charles B. Huggins 1967 Ragnar Granit / Haldan Hartline / George Wald 1968 Robert W. Holley / Har Khorana / Marshall Nirenberg 1969 Max Delbrück / Alfred Hershey / Salvador Luria 1970 Bernard Katz / Ulf von Euler / Julius Axelrod 1971 Earl Sutherland Jr. 1972 Gerald Edelman / Rodney Porter 1973 Karl von Frisch / Konrad Lorenz / Nikolaas Tinbergen 1974 Albert Claude / Christian de Duve / George Palade 1975 David Baltimore / Renato Dulbecco / Howard Temin

1976–2000

1976 Baruch Blumberg / Daniel Gajdusek 1977 Roger Guillemin / Andrew Schally / Rosalyn Yalow 1978 Werner Arber / Daniel Nathans / Hamilton O. Smith 1979 Allan Cormack / Godfrey Hounsfield 1980 Baruj Benacerraf / Jean Dausset / George Snell 1981 Roger Sperry / David H. Hubel / Torsten Wiesel 1982 Sune Bergström / Bengt I. Samuelsson / John Vane 1983 Barbara McClintock 1984 Niels Jerne / Georges Köhler / César Milstein 1985 Michael Brown / Joseph L. Goldstein 1986 Stanley Cohen / Rita Levi-Montalcini 1987 Susumu Tonegawa 1988 James W. Black / Gertrude B. Elion / George H. Hitchings 1989 J. Michael Bishop / Harold E. Varmus 1990 Joseph Murray / E. Donnall Thomas 1991 Erwin Neher / Bert Sakmann 1992 Edmond Fischer / Edwin G. Krebs 1993 Richard J. Roberts / Phillip Sharp 1994 Alfred G. Gilman / Martin Rodbell 1995 Edward B. Lewis / Christiane Nüsslein-Volhard / Eric F. Wieschaus 1996 Peter C. Doherty / Rolf M. Zinkernagel 1997 Stanley B. Prusiner 1998 Robert F. Furchgott / Louis Ignarro / Ferid Murad 1999 Günter Blobel 2000 Arvid Carlsson / Paul Greengard / Eric Kandel

2001–present

2001 Leland H. Hartwell / Tim Hunt / Paul Nurse 2002 Sydney Brenner / H. Robert Horvitz / John E. Sulston 2003 Paul Lauterbur / Peter Mansfield 2004 Richard Axel / Linda B. Buck 2005 Barry Marshall / Robin Warren 2006 Andrew Fire / Craig Mello 2007 Mario Capecchi / Martin Evans / Oliver Smithies 2008 Harald zur Hausen / Luc Montagnier / Françoise Barré-Sinoussi 2009 Elizabeth Blackburn / Carol W. Greider / Jack W. Szostak 2010 Robert G. Edwards 2011 Bruce Beutler / Jules A. Hoffmann / Ralph M. Steinman (posthumously) 2012 John B. Gurdon / Shinya Yamanaka 2013 James Rothman / Randy Schekman / Thomas C. Südhof 2014 John O'Keefe / May-Britt Moser / Edvard Moser 2015 William C. Campbell / Satoshi Ōmura / Tu Youyou 2016 Yoshinori Ohsumi 2017 Jeffrey C. Hall, Michael Rosbash, Michael W. Young

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WorldCat Identities VIAF: 44667014 LCCN: nb2007008904 ISNI: 0000 0000 7778 0202 GND: 101354630 SUDOC: 084570288 BNF: cb10781483w (data

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