Evidence map›Paper›PMID 22945461›Full record

ArticleEuropean journal of drug metabolism and pharmacokinetics2013

Genome-wide association study reveals a complex genetic architecture underpinning-induced CYP3A4 enzyme activity.

Nilufer Rahmioglu, James Heaton, Gail Clement, Raj Gill, Gabriela Surdulescu, Karolina Zlobecka, Dylan Hodgkiss, Norman W Smith, Kourosh R Ahmadi

Abstract readTwin Study
PubMed Publisher
In one paragraph

Article in European journal of drug metabolism and pharmacokinetics, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
1.3field-weighted citation impact, top 18% of its field
1 · What the graph read from 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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

4 citing papers in PubMed, 7 citations in OpenAlex.

  1. Review
  2. Observational
  3. Review
  4. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 2 institutions in 1 country.

Nilufer RahmiogluDepartment of Twin Research and Genetic Epidemiology, St. Thomas' Hospital, King's College London, Lambeth Palace Rd, London, SE1 7EH, UK.
James Heaton
Gail Clement
Raj Gill
Gabriela Surdulescu
Karolina Zlobecka
Dylan Hodgkiss
Norman W Smith
Kourosh R Ahmadi
King's College London · GBSt Thomas' Hospital · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Atypical cytochrome P450 3A4 (CYP3A4) enzyme activity-induced and inhibited-is thought to be the driver of numerous poor or adverse therapeutic responses to up to 50 % of all commonly prescribed drugs. We carried out a genome-wide association study to identify common genetic variants associated with variation in induced CYP3A4 activity. A total of 310 twins were included in this study. Each participant had already completed a 14 days course of St John's Wort to induce CYP3A4, which was quantified through the metabolic ratio of exogenous 3-hydroxyquinine to quinine. We failed to detect any genome-wide significant associations (P < 1 × 10(-8)) with variation in induced CYP3A4 activity although several genomic regions were highlighted which may play minor roles. We report the first GWAS of variation in induced CYP3A4 activity and our preliminary results indicate a complex genetic architecture underpinning induced CYP3A4 enzyme activity.

Indexed as

AgedAged, 80 and overBiomarkersBiotransformationCytochrome P-450 CYP3AEnzyme InductionFemaleGenome-Wide Association StudyGenotypeHumansHydroxylationHypericumLiverMiddle AgedPhenotypePlant Preparations3-hydroxyquinidineBiomarkersCYP3A4 protein, humanCytochrome P-450 CYP3APlant PreparationsQuinidineQuinine

Identifiers

PMID22945461
OpenAlexW2035514658

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.