Evidence map›Paper›PMID 21045116›Full record

ArticlePhysiological genomics2011

Multiple cytochrome P-450 genes are concomitantly regulated by vitamin A under steady-state conditions and by retinoic acid during hepatic first-pass metabolism.

A Catharine Ross, Christopher J Cifelli, Reza Zolfaghari, Nan-Qian Li

Abstract read
In one paragraph

Article in Physiological genomics, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
1.9field-weighted citation impact, top 15% 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

20 citing papers in PubMed, 32 citations in OpenAlex.

  1. Review
  2. Retinol Binding Protein 7 Promotes AdipogenesisFrontiers in cell and developmental biology · 2022
    Article
  3. Article
  4. Inhibition of theDrug metabolism and disposition: the biological fate of chemicals · 2017
    Article
  5. Article
  6. Retinoid-xenobiotic interactions: the Ying and the Yang.Hepatobiliary surgery and nutrition · 2015
    Review
  7. Article
  8. Article
  9. Retinoids modulate thioacetamide-induced acute hepatotoxicity.Toxicological sciences : an official journal of the Society of Toxicology · 2014
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Review
  17. Article
  18. Review
  19. Review
  20. Review
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.

A Catharine RossDepartment of Nutritional Sciences, Pennsylvania State University,University Park, Pennsylvania 16802, USA. acr6@psu.edu
Christopher J Cifelli
Reza Zolfaghari
Nan-Qian Li
Pennsylvania State University · US

Funding

VITAMIN A NUTRITIONAL STATUS AND IMMUNE FUNCTIONR01DK041479 · NIDDK · PENNSYLVANIA STATE UNIVERSITY-UNIV PARK · PI ROSS, A. CATHARINE · 1989 to 2015
$4.0M
Molecular Regulation of LRAT and CYP26 in Lung and LiverR01CA090214 · NCI · PENNSYLVANIA STATE UNIVERSITY-UNIV PARK · PI ROSS, A. CATHARINE · 2001 to 2012
$2.6M
Retinoid Nutritional Status and Immune FunctionR56DK041479 · NIDDK · PENNSYLVANIA STATE UNIVERSITY, THE · PI ROSS, A. CATHARINE · 2012 to 2012
$158k
NCI NIH HHS CA-90214SNCI NIH HHS R01 CA090214NIDDK NIH HHS DK-41479NIDDK NIH HHS R01 DK041479
6 · The paper itself

Abstract

Vitamin A (retinol) is an essential precursor for the production of retinoic acid (RA), which in turn is a major regulator of gene expression, affecting cell differentiation throughout the body. Understanding how vitamin A nutritional status, as well as therapeutic retinoid treatment, regulates the expression of retinoid homeostatic genes is important for improvement of dietary recommendations and therapeutic strategies using retinoids. This study investigated genes central to processes of retinoid uptake and storage, release to plasma, and oxidation in the liver of rats under steady-state conditions after different exposures to dietary vitamin A (deficient, marginal, adequate, and supplemented) and acutely after administration of a therapeutic dose of all-trans-RA. Over a very wide range of dietary vitamin A, lecithin:retinol acyltransferase (LRAT) as well as multiple cytochrome P-450s (CYP26A1, CYP26B1, and CYP2C22) differed by diet and were highly correlated with one another and with vitamin A status assessed by liver retinol concentration (all correlations, P < 0.05). After acute treatment with RA, the same genes were rapidly and concomitantly induced, preceding retinoic acid receptor (RAR)β, a classical direct target of RA. CYP26A1 mRNA exhibited the greatest dynamic range (change of log 2(6) in 3 h). Moreover, CYP26A1 increased more rapidly in the liver of RA-primed rats than naive rats, evidenced by increased CYP26A1 gene expression and increased conversion of [(3)H]RA to polar metabolites. By in situ hybridization, CYP26A1 mRNA was strongly regulated within hepatocytes, closely resembling retinol-binding protein (RBP)4 in location. Overall, whether RA is produced endogenously from retinol or administered exogenously, changes in retinoid homeostatic gene expression simultaneously favor both retinol esterification and RA oxidation, with CYP26A1 exhibiting the greatest dynamic change.

Indexed as

AcyltransferasesAnimalsCytochrome P-450 Enzyme SystemFemaleIn Situ HybridizationLiverRatsReceptors, Retinoic AcidRetinoic Acid 4-HydroxylaseTretinoinVitamin AAcyltransferasesCyp26b1 protein, ratCytochrome P-450 Enzyme Systemlecithin-retinol acyltransferaseReceptors, Retinoic AcidRetinoic Acid 4-Hydroxylaseretinoic acid receptor betaTretinoinVitamin A

Identifiers

PMID21045116
PMCPMC3026351
OpenAlexW2055609582

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.