Siddhesh Joshi

Henrik Dam

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Name  Henrik Dam

Henrik Dam httpsuploadwikimediaorgwikipediacommonsthu
Died  April 17, 1976, Copenhagen, Denmark
Awards  Nobel Prize in Physiology or Medicine

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Henrik Dam (Full name Carl Peter Henrik Dam) (21 February 1895 – 17 April 1976) was a Danish biochemist and physiologist.

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Henrik Dam Nobel1943 Henrik Dam

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. He initially replicated experiments reported by scientists at the Ontario Agricultural College (OAC). 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. 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.

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He was born and died in Copenhagen.

Henrik Dam Carl Peter Henrik Dam 18951976 Smithsonian Institution Archives

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.

Henrik Dam Henrik Dam Biography Childhood Life Achievements Timeline

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.

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References

Henrik Dam Wikipedia


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