Edward Calvin Kendall, American biochemist.

Edward Calvin Kendall, American biochemist.

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Credit: SCIENCE PHOTO LIBRARY

Caption: Edward C. Kendall. Portrait of Edward Calvin Kendall (1886-1972), the American biochemist who isolated thyroxin (controls metabolic activity) and cortisone (used to treat arthritis). In 1914 Kendall isolated a hormone from the thyroid gland. He named it thyroxin and showed that it was a compound of iodine and the amino acid tyrosine. In the 1930s Kendall investigated the secretions of the adrenal gland and isolated twenty-eight steroids. Kendall found that four, labelled A, B, E and F, were physiologically active. Compound E, now called cortisone, was found to be effective against rheumatoid arthritis. In 1950 Kendall was awarded the Nobel Prize for medicine.

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Keywords: 1950, biochemist, cortisone, discoverer, e.c., edward calvin, endocrinologist, kendall, medicine, metabolic hormone, nobel laureate, nobel prize, portraits, recipient, surname k, thyroxine, winner

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