Evidence map›Paper›PMID 25814978›Full record

ReviewFrontiers in endocrinology2015

Retinoid receptors in bone and their role in bone remodeling.

Petra Henning, H Herschel Conaway, Ulf H Lerner

Open access · goldAbstract readReview
In one paragraph

Review in Frontiers in endocrinology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed, 1 pooled it
4.5field-weighted citation impact, top 5% 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

55 citing papers in PubMed, 1 synthesis or guideline pooled it, 112 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Timing of Isotretinoin Exposure and Early Postoperative Complications after Anterior Cruciate Ligament Reconstruction.Journal of the American Academy of Orthopaedic Surgeons. Global research & reviews · 2026
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  17. Role of vitamins beyond vitamin DInternational journal of molecular medicine · 2024
    Review
  18. All-Biomedicines · 2023
    Article
  19. Article
  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

3 authors at 2 institutions in 2 countries.

Petra HenningCentre for Bone and Arthritis Research, Institute for Medicine, Sahlgrenska Academy, University of Gothenburg , Gothenburg , Sweden.
H Herschel ConawayDepartment of Physiology and Biophysics, University of Arkansas for Medical Sciences , Little Rock, AR , USA.
Ulf H LernerCentre for Bone and Arthritis Research, Institute for Medicine, Sahlgrenska Academy, University of Gothenburg , Gothenburg , Sweden ; Department of Molecular Periodontology, Umeå University , Umeå , Sweden.
University of Gothenburg · SEUniversity of Arkansas for Medical Sciences · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Vitamin A (retinol) is a necessary and important constituent of the body which is provided by food intake of retinyl esters and carotenoids. Vitamin A is known best for being important for vision, but in addition to the eye, vitamin A is necessary in numerous other organs in the body, including the skeleton. Vitamin A is converted to an active compound, all-trans-retinoic acid (ATRA), which is responsible for most of its biological actions. ATRA binds to intracellular nuclear receptors called retinoic acid receptors (RARα, RARβ, RARγ). RARs and closely related retinoid X receptors (RXRα, RXRβ, RXRγ) form heterodimers which bind to DNA and function as ligand-activated transcription factors. It has been known for many years that hypervitaminosis A promotes skeleton fragility by increasing osteoclast formation and decreasing cortical bone mass. Some epidemiological studies have suggested that increased intake of vitamin A and increased serum levels of retinoids may decrease bone mineral density and increase fracture rate, but the literature on this is not conclusive. The current review summarizes how vitamin A is taken up by the intestine, metabolized, stored in the liver, and processed to ATRA. ATRA's effects on formation and activity of osteoclasts and osteoblasts are outlined, and a summary of clinical data pertaining to vitamin A and bone is presented.

Indexed as

osteoblastosteoclastosteoporosisretinoidsvitamin A

Identifiers

PMID25814978
PMCPMC4356160
OpenAlexW2017461902

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.