XANTHINE

Pronunciation (US):

(GB):

 Dictionary entry overview: What does xanthine mean? 

• XANTHINE (noun)
  The noun XANTHINE has 1 sense:

1. crystalline oxidation product of the metabolism of nucleoproteins; precursor of uric acid; found in many organs and in urine

  Familiarity information: XANTHINE used as a noun is very rare.

 Dictionary entry details 

• XANTHINE (noun)

Sense 1

Meaning:

Crystalline oxidation product of the metabolism of nucleoproteins; precursor of uric acid; found in many organs and in urine

Classified under:

Nouns denoting substances

Hypernyms ("xanthine" is a kind of...):

organic compound (any compound of carbon and another element or a radical)

 Context examples 

An orally available, non-purine inhibitor of xanthine oxidase with uric acid lowering activity.

(Febuxostat, NCI Thesaurus)

A purine-based organic compound in human muscle tissues, Hypoxanthine is formed during purine catabolism as a product of xanthine oxidase action on xanthine, and occasionally is found as a constituent of nucleic acids.

(Hypoxanthine, NCI Thesaurus)

Allopurinol inhibits xanthine oxidase, an enzyme that converts oxypurines to uric acid.

(Allopurinol, NCI Thesaurus)

A naturally occurring xanthine derivative with central nervous system (CNS) stimulating activity.

(Caffeine, NCI Thesaurus)

Anti-asthmatic agents can be mainly bronchodilators (beta-adrenoreceptor agonists, xanthines, muscarinic-receptor antagonists) and anti-inflammatory agents (glucocorticoids, cromolyn).

(Asthma Preparation, NCI Thesaurus)

This xanthine most likely exerts its effect by inhibiting cAMP or cGMP phosphodiesterases, thereby increasing levels of the second messenger cAMP or cGMP intracellularly.

(Aminophylline, NCI Thesaurus)

This species is nonmotile, catalase and urease positive, acid-fast, oxidase negative, hydrolyzes casein, elastin, esculin, hypoxanthine, testosterone, and tyrosine, but not xanthine, produces acid phosphatase, and reduces nitrate.

(Nocardia brasiliensis, NCI Thesaurus)

This species is nonmotile, catalase and urease positive, reduces nitrate, hydrolyzes esculin, hypoxanthine, and xanthine, but not casein, elastin, testosterone, or tyrosine.

(Nocardia otitidiscaviarum, NCI Thesaurus)

Desciclovir is absorbed from the gastrointestinal tract and is converted to acyclovir by xanthine oxidase.

(Desciclovir, NCI Thesaurus)

This species is spore forming, nonacid-fast, urease negative, catalase positive, hydrolyzes starch, gelatin, esculin, xanthine, and hypoxanthine, reduces nitrate, and produces an aerial hyphae and substrate mycelium that fragments into coccoid elements.

(Nocardia dassonvillei, NCI Thesaurus)