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Article

Caffeine metabolic ratios for the in vivo evaluation of CYP1A2, N-acetyltransferase 2, xanthine oxidase and CYP2A6 enzymatic activities.

Current drug metabolism - 1 May 2009

Hakooz Nancy M Kh

Abstract excerpt

Phenotyping by probe substrates of cytochrome P450 (CYP) and other metabolizing enzymes is widely used to assess the effects of genes, environment and ethnicity on the in vivo metabolism of drugs and environmental chemicals. The caffeine metabolic ratio, in urine, plasma or saliva, has been used extensively as an index of CYP1A2, N-acetyltransferase 2 (NAT2), xanthine oxidase (XO) and CYP2A6 enzymatic activities....

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Source

Identifiers

PMID: 19519341
DOI: 10.2174/138920009788499003

Genes

NAT2

Provenance

PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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