Evidence map›Paper›PMID 18287057›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2008

Retinoic acid deficiency alters second heart field formation.

Lucile Ryckebusch, Zengxin Wang, Nicolas Bertrand, Song-Chang Lin, Xuan Chi, Robert Schwartz, Stéphane Zaffran, Karen Niederreither

Open access · greenAbstract readComparative Study
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 119 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
119citing papers in PubMed, 1 pooled it
5.4field-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

119 citing papers in PubMed, 1 synthesis or guideline pooled it, 207 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Region- and Cell-type-Resolved Multiomic Atlas of the Heart.Molecular & cellular proteomics : MCP · 2025
    Article
  10. Retinoic acid signaling and metabolism in heart failure.American journal of physiology. Heart and circulatory physiology · 2025
    Review
  11. Review
  12. The molecular mechanisms of cardiac development and related diseases.Signal transduction and targeted therapy · 2024
    Review
  13. Article
  14. Review
  15. Article
  16. Review
  17. Review
  18. Article
  19. Article
  20. The second heart field: the first 20 years.Mammalian genome : official journal of the International Mammalian Genome Society · 2023
    Review

59 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

8 authors at 2 institutions in 2 countries.

Lucile RyckebuschDevelopmental Biology Institute of Marseille-Luminy, Centre National de la Recherche Scientifique Unité Mixte de Recherche 6216, Campus de Luminy Case 907, 13009 Marseille, France.
Zengxin Wang
Nicolas Bertrand
Song-Chang Lin
Xuan Chi
Robert Schwartz
Stéphane Zaffran
Karen Niederreither
Baylor College of Medicine · USInstitut de Biologie du Développement Marseille · FR

Funding

Targets of Retinoid-Dependent Heart DevelopmentR01HL070733 · NHLBI · UNIVERSITY OF TEXAS AT AUSTIN · PI NIEDERREITHER, KAREN A · 2005 to 2009
$1.9M
NHLBI NIH HHS R01 HL070733
6 · The paper itself

Abstract

Retinoic acid (RA), the active derivative of vitamin A, has been implicated in various steps of cardiovascular development. The retinaldehyde dehydrogenase 2 (RALDH2) enzyme catalyzes the second oxidative step in RA biosynthesis and its loss of function creates a severe embryonic RA deficiency. Raldh2(-/-) knockout embryos fail to undergo heart looping and have impaired atrial and sinus venosus development. To understand the mechanism(s) producing these changes, we examined the contribution of the second heart field (SHF) to pharyngeal mesoderm, atria, and outflow tract in Raldh2(-/-) embryos. RA deficiency alters SHF gene expression in two ways. First, Raldh2(-/-) embryos exhibited a posterior expansion of anterior markers of the SHF, including Tbx1, Fgf8, and the Mlc1v-nlacZ-24/Fgf10 reporter transgene as well as of Islet1. This occurred at early somite stages, when cardiac defects became irreversible in an avian vitamin A-deficiency model, indicating that endogenous RA is required to restrict the SHF posteriorly. Explant studies showed that this expanded progenitor population cannot differentiate properly. Second, RA up-regulated cardiac Bmp expression levels at the looping stage. The contribution of the SHF to both inflow and outflow poles was perturbed under RA deficiency, creating a disorganization of the heart tube. We also investigated genetic cross-talk between Nkx2.5 and RA signaling by generating double mutant mice. Strikingly, Nkx2.5 deficiency was able to rescue molecular defects in the posterior region of the Raldh2(-/-) mutant heart, in a gene dosage-dependent manner.

Indexed as

Aldehyde OxidoreductasesAnimalsBone Morphogenetic ProteinsGene DosageGene Expression Regulation, DevelopmentalHeartImmunohistochemistryIn Situ HybridizationMiceMice, KnockoutSignal TransductionTretinoinAldehyde OxidoreductasesBone Morphogenetic ProteinsRALDH2 protein, mouseTretinoin

Identifiers

PMID18287057
PMCPMC2268559
OpenAlexW2138969514

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.