ReviewJournal of personalized medicine2017
Variation in CYP2A6 Activity and Personalized Medicine.
Review in Journal of personalized medicine, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 90 papers, 4 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
A Randomized, Open Label, Parallel Group Study in Adult Smokers to Evaluate Changes in Biomarkers of Cigarette Smoke Exposure After Switching Either Exclusively or Partly to Using JUUL Electronic Nicotine Delivery Systems With Two Different Nicotine Concentrations
A Randomized, Open-Label, Cross-Over Study to Characterize the Nicotine Uptake and Subjective Effects With Use of JUUL Electronic Nicotine Delivery Systems With Multiple Flavors and Nicotine Concentrations, Usual Brand of Combustible Cigarettes, a Comparator E-Cigarette and Nicotine Gum in Adult Smokers
Who cites it
90 citing papers in PubMed, 4 syntheses or guidelines pooled it, 160 citations in OpenAlex.
- Long-Term PMAnnals of the American Thoracic Society · 2025Pooled it
- Genetic susceptibility to caffeine intake and metabolism: a systematic review.Journal of translational medicine · 2024Pooled it
- Systematic Review of Naturally Derived Substances That Act as Inhibitors of the Nicotine Metabolizing Enzyme Cytochrome P450 2A6.International journal of molecular sciences · 2024Pooled it
- The Promise of Polygenic Risk Prediction in Smoking Cessation: Evidence From Two Treatment Trials.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2022Pooled it
- Pharmacokinetics and Pharmacodynamics of Inhaled Nicotine Salt and Free-Base Using an E-cigarette: A Randomized Crossover Study.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2024Trial
- A Cross-Sectional Analysis of the Nicotine Metabolite Ratio and Its Association with Sociodemographic and Smoking Characteristics among People with HIV Who Smoke in South Africa.International journal of environmental research and public health · 2023Trial
- Opioid Use and Rate of Nicotine Metabolism Among Pregnant Smokers.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2020Trial
- CYP2B6 Genotype-Dependent Inhibition of CYP1A2 and Induction of CYP2A6 by the Antiretroviral Drug Efavirenz in Healthy Volunteers.Clinical and translational science · 2019Trial
- Generation of the Antioxidant Hydroxytyrosol from Tyrosol Present in Beer and Red Wine in a Randomized Clinical Trial.Nutrients · 2019Trial
- Placebo-controlled randomized clinical trial testing the efficacy and safety of varenicline for smokers with HIV.Drug and alcohol dependence · 2019Trial
- Evaluating metronidazole as a novel, safe CYP2A6 phenotyping probe in healthy adults.British journal of clinical pharmacology · 2019Trial
- Pharmacokinetic and bioequivalence study between two formulations of S-1 in Korean gastric cancer patients.Drug design, development and therapy · 2019Trial
- Cytochrome P450-Catalyzed Hydroxylation of Δ8-Tetrahydrocannabinol and Implications for Pharmacogenetics.Pharmaceutics · 2026Article
- Nicotine metabolites generate craniofacial defects that are worsened by ethanol exposure.PNAS nexus · 2026Article
- Article
- Age (juvenile to aged) and sex effects on in vitro CYP2A6 enzyme activity in African green monkeys using nicotine and coumarin.Drug metabolism and disposition: the biological fate of chemicals · 2026Article
- Article
- vToxiNet: a biologically constrained deep learning framework for interpretable prediction of drug-induced hepatotoxicity.bioRxiv : the preprint server for biology · 2026Article
- Advancing precision tacrolimus therapy: a systems genetics dissection in BXD platform.Frontiers in immunology · 2026Article
- Combined cord blood metabolomic and clinical signatures discriminate small for gestational age neonates in preeclampsia.Frontiers in endocrinology · 2026Article
30 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The cytochrome P450 2A6 (CYP2A6) enzyme metabolizes several clinically relevant substrates, including nicotine-the primary psychoactive component in cigarette smoke. The gene that encodes the CYP2A6 enzyme is highly polymorphic, resulting in extensive interindividual variation in CYP2A6 enzyme activity and the rate of metabolism of nicotine and other CYP2A6 substrates including cotinine, tegafur, letrozole, efavirenz, valproic acid, pilocarpine, artemisinin, artesunate, SM-12502, caffeine, and tyrosol. CYP2A6 expression and activity are also impacted by non-genetic factors, including induction or inhibition by pharmacological, endogenous, and dietary substances, as well as age-related changes, or interactions with other hepatic enzymes, co-enzymes, and co-factors. As variation in CYP2A6 activity is associated with smoking behavior, smoking cessation, tobacco-related lung cancer risk, and with altered metabolism and resulting clinical responses for several therapeutics, CYP2A6 expression and enzyme activity is an important clinical consideration. This review will discuss sources of variation in CYP2A6 enzyme activity, with a focus on the impact of
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.