Henrik Dam Danish biochemist, awarded the Nobel Prize in Physiology or Medicine in 1943 (together with E. Doisy) for the discovery of vitamin K Date of Birth: 21.02.1895 Country: Sweden

1. Biography of Carl Peter Henrik Dam
2. Education and Early Career
3. International Work
4. Contributions to Science
5. Later Career and Legacy

Biography of Carl Peter Henrik Dam

Carl Peter Henrik Dam was a Danish biochemist and physiologist, and the recipient of the Nobel Prize in Physiology or Medicine in 1943. He was born on February 21, 1895, in Copenhagen, Denmark.

Education and Early Career

Dam studied at the Technical Institute in Copenhagen and the University of Copenhagen. In 1934, he successfully defended his dissertation on biochemistry. From 1920 to 1923, he taught chemistry at the School of Agriculture and Veterinary Medicine, and from 1923 to 1941, he taught biochemistry at the University of Copenhagen.

International Work

In 1940 and 1941, Dam lectured in the United States and Canada. In 1941, he emigrated to the United States and worked at the School of Medicine at the University of Rochester in New York from 1942 to 1945. He then joined the Rockefeller Institute for Medical Research in New York from 1945 to 1948. In 1946, he returned to Denmark.

Contributions to Science

Dam's major works focused on the study of the biochemical properties of vitamins and sterols. He discovered that hemorrhagic skin and muscle lesions in chicks on a fat-free diet were caused by the absence of a substance in their diet, which he named "vitamin K" (from the word "coagulation"). This vitamin was found, in particular, in animal liver tissues, indicating its mechanism of action.

Dam also found that the liver produces an enzyme involved in blood clotting, which does not function without vitamin K, resulting in the disruption of the entire clotting system. From 1928 to 1930, Dam developed methods for isolating and purifying vitamin K, and suggested its use in medicine for the treatment of bleeding, surgical operations, and liver diseases.

Additionally, he demonstrated that the absence of vitamin E in the diet of animals leads to muscular dystrophy.

Later Career and Legacy

From 1956 onwards, Dam served as the head of the Biochemical Department at the Danish Institute for Fat Research. He continued his research and made significant contributions to the understanding of vitamins and their role in various physiological processes.

Carl Peter Henrik Dam passed away on April 17, 1976, leaving behind a remarkable legacy in the field of biochemistry and physiology. His discoveries and advancements in the study of vitamins have had a lasting impact on medical understanding and treatment.