Evidence map›Paper›PMID 17284330›Full record

ReviewSteroids2007

CAR and PXR: the xenobiotic-sensing receptors.

Yoav E Timsit, Masahiko Negishi

Open access · greenAbstract readReview
In one paragraph

Review in Steroids, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 156 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
156citing papers in PubMed, 1 pooled it
15.5field-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

156 citing papers in PubMed, 1 synthesis or guideline pooled it, 419 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Impact of sex and pregnancy on hepatic CYP3A4 expression and activity in a humanized mouse model.Drug metabolism and disposition: the biological fate of chemicals · 2025
    Article
  9. Review
  10. Review
  11. Review
  12. Article
  13. Regulation of hepatic xenosensor function by HNF4alpha.Toxicological sciences : an official journal of the Society of Toxicology · 2024
    Article
  14. Article
  15. The desert woodrat (Neotoma lepida) induces a diversity of biotransformation genes in response to creosote bush resin.Comparative biochemistry and physiology. Toxicology & pharmacology : CBP · 2024
    Article
  16. Review
  17. Costs of molecular adaptation to the chemical exposome: a focus on xenobiotic metabolism pathways.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2024
    Review
  18. Article
  19. Review
  20. Roles ofFrontiers in genetics · 2024
    Article

96 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

2 authors at 1 institution in 1 country.

Yoav E TimsitPharmacogenetics Section, Laboratory of Reproductive and Developmental Toxicology, National Institute of Environmental Health Sciences, 111 T.W. Alexander Drive, Research Triangle Park, NC 27709, USA.
Masahiko Negishi
National Institute of Environmental Health Sciences · US

Funding

Pharmacogenetics Of Microsomal Steroid HydroxylasesZ01ES080040 · NIEHS · NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES · PI NEGISHI, MASAHIKO · 1985 to 2008
$5.7M
Structural Study Of SulfotransferasesZ01ES071005 · NIEHS · ENVIRONMENTAL HEALTH SCIENCES · PI NEGISHI, MASAHIKO · 1999 to 2007
$388k
Intramural NIH HHS Z01 ES071005Intramural NIH HHS Z01 ES080040Intramural NIH HHS Z99 ES999999
6 · The paper itself

Abstract

The xenobiotic receptors CAR and PXR constitute two important members of the NR1I nuclear receptor family. They function as sensors of toxic byproducts derived from endogenous metabolism and of exogenous chemicals, in order to enhance their elimination. This unique function of CAR and PXR sets them apart from the steroid hormone receptors. In contrast, the steroid receptors, exemplified by the estrogen receptor (ER) and glucocorticoid receptor (GR), are the sensors that tightly monitor and respond to changes in circulating steroid hormone levels to maintain body homeostasis. This divergence of the chemical- and steroid-sensing functions has evolved to ensure the fidelity of the steroid hormone endocrine regulation while allowing development of metabolic elimination pathways for xenobiotics. The development of the xenobiotic receptors CAR and PXR also reflect the increasing complexity of metabolism in higher organisms, which necessitate novel mechanisms for handling and eliminating metabolic by-products and foreign compounds from the body. The purpose of this review is to discuss similarities and differences between the xenobiotic receptors CAR and PXR with the prototypical steroid hormone receptors ER and GR. Interesting differences in structure explain in part the divergence in function and activation mechanisms of CAR/PXR from ER/GR. In addition, the physiological roles of CAR and PXR will be reviewed, with discussion of interactions of CAR and PXR with endocrine signaling pathways.

Indexed as

AnimalsConstitutive Androstane ReceptorCytochrome P-450 CYP3AHumansInactivation, MetabolicLigandsMiceMolecular StructurePregnane X ReceptorProtein ConformationProtein TransportRatsReceptors, Cytoplasmic and NuclearReceptors, SteroidSignal TransductionTranscription FactorsConstitutive Androstane ReceptorCytochrome P-450 CYP3ALigandsPregnane X ReceptorReceptors, Cytoplasmic and NuclearReceptors, SteroidTranscription FactorsXenobiotics

Identifiers

PMID17284330
PMCPMC1950246
OpenAlexW2084720330

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.