Evidence map›Paper›PMID 23328895›Full record

ArticleDrug metabolism and disposition: the biological fate of chemicals2013

Drug metabolism and transport during pregnancy: how does drug disposition change during pregnancy and what are the mechanisms that cause such changes?

Nina Isoherranen, Kenneth E Thummel

Open access · bronzeAbstract readComment
In one paragraph

Article in Drug metabolism and disposition: the biological fate of chemicals, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 102 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
102citing papers in PubMed, 2 pooled it
18.9field-weighted citation impact, top 1% 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

102 citing papers in PubMed, 2 syntheses or guidelines pooled it, 201 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Effects of Pregnancy on the Pharmacokinetics of Metformin.Drug metabolism and disposition: the biological fate of chemicals · 2020 · on this map
    Trial
  4. Fosamprenavir with Ritonavir Pharmacokinetics during Pregnancy.Antimicrobial agents and chemotherapy · 2020
    Trial
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  8. Article
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  13. Metabolic stability and effects of microsomal enzymes on the activity of the sonic hedgehog pathway inhibitor piperonyl butoxide.Toxicology in vitro : an international journal published in association with BIBRA · 2026
    Article
  14. Review
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  17. Article
  18. Review
  19. Review
  20. Mechanisms of altered hepatic drug disposition during pregnancy: small molecules.Expert opinion on drug metabolism & toxicology · 2025
    Review

42 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors at 1 institution in 1 country.

Nina Isoherranen
Kenneth E Thummel
University of Washington · US

Funding

UW Obstetric-Fetal Pharmacology Research UnitU10HD047892 · NICHD · UNIVERSITY OF WASHINGTON · PI EASTERLING, THOMAS R, HEBERT, MARY F · 2004 to 2014
$9.4M
NICHD NIH HHS U10 HD047892NICHD NIH HHS U10HD047892
6 · The paper itself

Abstract

There is increasing evidence that pregnancy alters the function of drug-metabolizing enzymes and drug transporters in a gestational-stage and tissue-specific manner. In vivo probe studies have shown that the activity of several hepatic cytochrome P450 enzymes, such as CYP2D6 and CYP3A4, is increased during pregnancy, whereas the activity of others, such as CYP1A2, is decreased. The activity of some renal transporters, including organic cation transporter and P-glycoprotein, also appears to be increased during pregnancy. Although much has been learned, significant gaps still exist in our understanding of the spectrum of drug metabolism and transport genes affected, gestational age-dependent changes in the activity of encoded drug metabolizing and transporting processes, and the mechanisms of pregnancy-induced alterations. In this issue of Drug Metabolism and Disposition, a series of articles is presented that address the predictability, mechanisms, and magnitude of changes in drug metabolism and transport processes during pregnancy. The articles highlight state-of-the-art approaches to studying mechanisms of changes in drug disposition during pregnancy, and illustrate the use and integration of data from in vitro models, animal studies, and human clinical studies. The findings presented show the complex inter-relationships between multiple regulators of drug metabolism and transport genes, such as estrogens, progesterone, and growth hormone, and their effects on enzyme and transporter expression in different tissues. The studies provide the impetus for a mechanism- and evidence-based approach to optimally managing drug therapies during pregnancy and improving treatment outcomes.

Indexed as

Maternal Behavior17 alpha-Hydroxyprogesterone CaproateAdrenal GlandsAnimalsAryldialkylphosphataseATP-Binding Cassette, Sub-Family C ProteinsATP-Binding Cassette TransportersCarboxylesteraseCholestasisCotinineCytochrome P-450 Enzyme SystemEstradiolEstrogen Receptor alphaEstrogensEthinyl EstradiolFemale17 alpha-Hydroxyprogesterone CaproateAryldialkylphosphataseATP-Binding Cassette, Sub-Family C ProteinsATP-Binding Cassette TransportersCarboxylesteraseCotinineCytochrome P-450 Enzyme SystemEstradiolEstrogen Receptor alphaEstrogensEthinyl EstradiolGlucuronosyltransferaseHydroxyprogesteronesMembrane Transport ProteinsMinor Histocompatibility Antigensmultidrug resistance-associated protein 3Organic Anion TransportersPesticidesPON1 protein, mouseProgesteroneRetinoic Acid 4-HydroxylaseRNA, MessengerTaurocholic AcidUDP-glucuronosyltransferase 2B15, humanUGT2B17 protein, humanUGT2B7 protein, human

Identifiers

PMID23328895
PMCPMC3558867
OpenAlexW2125390726

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.