NOUN
- crystalline oxidation product of the metabolism of nucleoproteins; precursor of uric acid; found in many organs and in urine
How To Use xanthine In A Sentence
- The 100m world champion was banned for three months in 2009 for taking methylxanthine. Times, Sunday Times
- From that time forward into the present, methyl xanthines have been used, most often in the form of theophylline or the water-soluble, related compound aminophylline, for the treatment of asthma.
- At Lethbridge, female sheep keds have been found to excrete xanthine and hypoxanthine as well as uric acid.
- Even since 1776 when Scheele found uric acid in urinary calculus, several substances closely related to it such as xanthine, adenine and guanine, etc. have been detected in animal secretions. Nobel Prize in Chemistry 1902 - Presentation Speech
- Xanthine oxidase has been found in the endothelium of capillaries by immunohistochemistry, and superoxide is generated in endothelial cell cultures.
- The enzymes guanase and xanthine oxidase were useful in our laboratory to examine the purines as substrates or inhibitors of these enzymes Nobel Lecture The Purine Path To Chemotherapy
- Xanthine, in combination with cyanine, modified by the various juices of plants, communicates in variable proportions orange-yellow, scarlet-red, and red colors to flowers. The Art of Perfumery And Methods of Obtaining the Odors of Plants
- For a start, methylxanthine was not banned. Times, Sunday Times
- Stones can be composed of calcium, oxalate, urate, cystine, xanthine, phosphate, or all of these.
- I had to work out the determination of the independent specific activities of the sugars and bases which I did by treating the nucleosides with nucleoside phosphorylase and hypoxanthine to exchange for the base to be analyzed. Irwin Rose - Autobiography