Evidence map›Paper›PMID 26586378›Full record

ArticleDrug metabolism and disposition: the biological fate of chemicals2016

Regulation of Hepatic Drug-Metabolizing Enzymes in Germ-Free Mice by Conventionalization and Probiotics.

Felcy Pavithra Selwyn, Sunny Lihua Cheng, Curtis D Klaassen, Julia Yue Cui

Open access · bronzeAbstract read
In one paragraph

Article in Drug metabolism and disposition: the biological fate of chemicals, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 77 papers.

0numbers the graph read from it
0cells of the map it votes in
77citing papers in PubMed
6.1field-weighted citation impact, top 3% 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

77 citing papers in PubMed, 131 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Article
  5. Review
  6. Review
  7. Phenoconversion andHepatology forum · 2025
    Review
  8. Review
  9. Article
  10. Integrating the gut microbiome and pharmacology.Science translational medicine · 2024
    Review
  11. Review
  12. Article
  13. Commensal microbiota regulate renal gene expression in a sex-specific manner.American journal of physiology. Renal physiology · 2023
    Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Role and Regulation of Hepatobiliary ATP-Binding Cassette Transporters during Chemical-Induced Liver Injury.Drug metabolism and disposition: the biological fate of chemicals · 2022
    Review
  19. Article
  20. Article

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

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

4 authors at 1 institution in 1 country.

Felcy Pavithra SelwynDepartment of Environmental and Occupational Health Sciences, University of Washington, Seattle, Washington.
Sunny Lihua ChengDepartment of Environmental and Occupational Health Sciences, University of Washington, Seattle, Washington.
Curtis D KlaassenDepartment of Environmental and Occupational Health Sciences, University of Washington, Seattle, Washington.
Julia Yue CuiDepartment of Environmental and Occupational Health Sciences, University of Washington, Seattle, Washington juliacui@uw.edu.
University of Washington · US

Funding

XENOBIOTIC BIOTRANSFORMATION AND DISPOSITIONP30ES007033 · NIEHS · UNIVERSITY OF WASHINGTON · PI ALI SHOJAIE · 1995 to 2026
$42.5M
Developmental Regulation of Drug Processing GenesR01ES019487 · NIEHS · UNIVERSITY OF WASHINGTON · PI CUI, JULIA YUE, LU, HONG · 2010 to 2014
$3.0M
Developmental Regulation of Drug Metabolism by Targeting the Gut MicrobiomeR01GM111381 · NIGMS · UNIVERSITY OF WASHINGTON · PI CUI, JULIA YUE · 2014 to 2018
$1.5M
NIEHS NIH HHS ES019487NIEHS NIH HHS P30 ES0007033NIEHS NIH HHS P30 ES007033NIEHS NIH HHS R01 ES019487NIGMS NIH HHS GM111381NIGMS NIH HHS R01 GM111381
6 · The paper itself

Abstract

Little is known regarding the effect of intestinal microbiota modifiers, such as probiotics and conventionalization with exogenous bacteria, on host hepatic drug metabolism. Therefore, the goal of this study was to determine the effect of these modifiers on the expression of various drug-metabolizing enzymes of the host liver. VSL3 is a probiotic that contains eight live strains of bacteria. Five groups of mice were used: 1) conventional mice (CV), 2) conventional mice treated with VSL3 in drinking water, 3) germ-free (GF) mice, 4) GF mice treated with VSL3, and 5) GF mice exposed to the conventional environment for 2 months. All mice were 3 months old at tissue collection. GF conditions markedly downregulated the cytochrome P450 (P450) 3a gene cluster, but upregulated the Cyp4a cluster, whereas conventionalization normalized their expression to conventional levels [reverse-transcription quantitative polymerase chain reaction (qPCR) and western blot]. Changes in the Cyp3a and 4a gene expression correlated with alterations in the pregnane X receptor and peroxisome proliferator-activated receptor α-DNA binding, respectively (chromatin immunoprecipitation-qPCR). VSL3 increased each bacterial component in the large intestinal content of the CV mice, and increased these bacteria even more in GF mice, likely due to less competition for growth in the GF environment. VSL3 given to conventional mice increased the mRNAs of Cyp4v3, alcohol dehydrogenase 1, and carboxyesterase 2a, but decreased the mRNAs of multiple phase II glutathione-S-transferases. VSL3 given to germ-free mice decreased the mRNAs of UDP-glucuronosyltransferases 1a9 and 2a3. In conclusion, conventionalization and VSL3 alter the expression of many drug-metabolizing enzyme s in the liver, suggesting the importance of considering "bacteria-drug" interactions for various adverse drug reactions in patients.

Indexed as

AnimalsCytochrome P-450 Enzyme SystemDown-RegulationGlucuronosyltransferaseGlutathione TransferaseLiverMaleMiceMice, Inbred C57BLPPAR alphaPregnane X ReceptorProbioticsReceptors, SteroidRNA, MessengerUDP-Glucuronosyltransferase 1A9Up-RegulationCytochrome P-450 Enzyme SystemGlucuronosyltransferaseGlutathione TransferasePPAR alphaPregnane X ReceptorReceptors, SteroidRNA, MessengerUDP-Glucuronosyltransferase 1A9

Identifiers

PMID26586378
PMCPMC4746487
OpenAlexW2183144597

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.