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xanthine

A purine base found in many tissues and fluids, which is a precursor to uric acid and is the core structure of compounds such as caffeine and theobromine.
Noun

This term is used exclusively within biochemistry and pharmacology to describe a specific class of purine bases. It carries a neutral, technical connotation and is typically found in academic papers, medical reports, or chemical textbooks rather than general conversation.

As a chemical compound, it is treated as an uncountable mass noun. It refers to the substance itself or the molecular structure, and therefore does not take a plural form in standard scientific usage.

Meanings

Noun

A purine base found in many tissues and fluids, which is a precursor to uric acid and is the core structure of compounds such as caffeine and theobromine.

The metabolic breakdown of xanthine is catalyzed by the enzyme xanthine oxidase.

Examples

Caffeine is a methylxanthine derivative that acts as a central nervous system stimulant.

caffeine is a methylxanthine derivative that acts as a central nervous system stimulant.

The enzyme xanthine oxidase catalyzes the oxidation of hypoxanthine to xanthine.

the enzyme xanthine oxidase catalyzes the oxidation of hypoxanthine to xanthine.

Wait, if the xanthine levels are this high, we need to check for kidney dysfunction.

waitif the xanthine levels are this highwe need to check for kidney dysfunction.

Xanthine serves as a critical intermediate in the purine degradation pathway.

xanthine serves as a critical intermediate in the purine degradation pathway.

I wonder if this specific xanthine analogue will effectively inhibit the receptor.

i wonder if this specific xanthine analogue will effectively inhibit the receptor.

The patient presents with xanthinuria, a rare genetic disorder involving xanthine excretion.

the patient presents with xanthinuriaa rare genetic disorder involving xanthine excretion.

The chemical structure of xanthine consists of a fused pyrimidine and imidazole ring.

the chemical structure of xanthine consists of a fused pyrimidine and imidazole ring.

We must analyze how xanthine is converted into uric acid within the liver.

we must analyze how xanthine is converted into uric acid within the liver.

The lab report indicates an abnormal accumulation of xanthine in the urine sample.

the lab report indicates an abnormal accumulation of xanthine in the urine sample.

Related Words

purinealkaloidcaffeinetheobrominetheophyllineadenineguaninehypoxanthineuric acidnitrogenoxygencarbonhydrogenmoleculemetabolismenzymexanthine oxidasecatabolismnucleotidenucleosidebaseDNARNAgeneticsbiochemistryphysiologypharmacologystimulantbronchodilatordiureticadenosineinosineguanosineimidazolepyrimidineheterocycleringoxidationreductionmetaboliteexcretionkidneyurinegouthyperuricemiacrystaljointinflammationcoffeeteacocoachocolatecentral nervous systemphosphodiesterasebioavailabilityhalf lifeclearancetoxicitydosagetherapeuticdrugcompoundisomertautomersolubilityprecipitationpHbuffercatalystsubstrateinhibitorallopurinolmetabolic pathwaybiosynthesisdegradationorganismcellcytoplasmmitochondriaproteinamino acid
Last Updated: May 2026Report an Error