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
- Two related xanthines, theobromine and theophylline, are often present in smaller amounts.
- Methyl xanthines (caffeine, theophylline and theobromine) are found in seeds and leaves of a variety of unrelated plant species, including coffee, tea, cocoa, cola and mate.
- Stones can be composed of calcium, oxalate, urate, cystine, xanthine, phosphate, or all of these.
- Most affected individuals are asymptomatic, but aPProximately one-third will have xanthine stones.
- A number of catabolic enzymes were known: nucleases, nucleotidases, nucleosidases, deaminases (for guanine, adenine, adenosine, and adenylic acid), xanthine oxidase and uricase. Nobel Lecture The Purine Path To Chemotherapy
- It appears that the purine metabolic system in humans has found a way to avoid the overproduction of uric acid by downregulating the Xor gene expression, the product converting hypoxanthine to xanthine and further xanthine to uric acid.
- 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
- In this respect, ara-G had an advantage over the deamination product of ara-A, hypoxanthine arabinoside, which had very poor antiviral activity. Nobel Lecture The Purine Path To Chemotherapy
- Like arginine, hypoxanthine is a limiting N source.
- Production was not abrogated by inhibitors of cyclooxygenases, xanthine oxidase, nitric oxide synthases, and mitochondrial enzymes.
