25 December


1914 – American biochemist Edward C. Kendall isolated the thyroid hormone thyroxine from the thyroid gland removed surgically from patients. The isolated thyroxine proved to be fully active in relieving the symptoms of hypothyroidism.

Thyroxine is an important metabolic hormone that controls the speed of carbohydrate metabolism and the synthesis and breakdown of proteins.



1876 – Adolf Windaus was born (25.12.1876.-09.06.1959.), the German organic chemist who was awarded the 1928 Nobel Prize in the field of human nutrition. The award was given for his studies of the sterols structure and their connection with vitamins.

Windaus began studying sterols in 1901 when nothing was known about the biochemistry of these compounds. In 1926 he proved that ultraviolet light (from sunlight or laboratory sources) activates ergosterol in the process of formation of vitamin D. Later he produced vitamin D3 by chemical synthesis, discovered histamine, and contributed to the synthesis of several B vitamins.



13 December
views 1728
  2013 - The scientists from the University of Washington discovered a second code hiding within DNA molecules. The discovery was published in the December 13. 2013. issue of Science...
31 December
views 1610
  1816 - Sir William Withey Gull was born, (31.12.1816 - 29.01.1890), English physician and clinician who worked in London. He treated the Prince of Wales for typhoid, and Queen Vict...
Vitamin D and breast cancer
views 2030
  17.12.2015. A new paper published in October 2015 in the American Journal of Clinical Nutrition suggests that vitamin D3 could oppose breast cancer caused by estrogen. The study of...
views 2153
  Click on the highlighted date (blue). January 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 February 01 02 03 04 05 06 07 0...
15 January
views 1968
  2015 – The USDA approved the sale and planting of Monsanto’s genetically engineered dicamba tolerant soybeans and cotton. Dicamba is a broad spectrum herbicide, which is absorbe...

Leave a Reply

Your email address will not be published. Required fields are marked *