Evidence map›Paper›PMID 23233539›Full record

ArticleAmerican journal of physiology. Endocrinology and metabolism2013

Interactions between calcium and phosphorus in the regulation of the production of fibroblast growth factor 23 in vivo.

Stephen J Quinn, Alex R B Thomsen, Jian L Pang, Lakshmi Kantham, Hans Bräuner-Osborne, Martin Pollak, David Goltzman, Edward M Brown

Abstract read
In one paragraph

Article in American journal of physiology. Endocrinology and metabolism, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
54citing papers in PubMed, 1 pooled it
5.0field-weighted citation impact, top 4% 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

54 citing papers in PubMed, 1 synthesis or guideline pooled it, 114 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Article
  5. Article
  6. Emerging concepts on the FGF23 regulation and activity.Molecular and cellular biochemistry · 2025
    Review
  7. Review
  8. Article
  9. Article
  10. Review
  11. Mineral Metabolism in Children: Interrelation between Vitamin D and FGF23.International journal of molecular sciences · 2023
    Review
  12. Review
  13. Review
  14. Article
  15. Article
  16. Review
  17. Article
  18. Review
  19. Electrocardiogram findings at the initiation of hemodialysis and types of subsequent cardiovascular events.Hypertension research : official journal of the Japanese Society of Hypertension · 2021
    Article
  20. Phosphate as a Pathogen of Arteriosclerosis and Aging.Journal of atherosclerosis and thrombosis · 2021
    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

8 authors at 5 institutions in 3 countries.

Stephen J QuinnDivision of Endocrinology, Diabetes, and Hypertension, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA.
Alex R B Thomsen
Jian L Pang
Lakshmi Kantham
Hans Bräuner-Osborne
Martin Pollak
David Goltzman
Edward M Brown
Brigham and Women's Hospital · USHarvard University · USBeth Israel Deaconess Medical Center · USMcGill University · CAUniversity of Copenhagen · DK

Funding

Ca2+-Sensing Receptor: Novel Roles in Calcium HomeostasisR01DK078331 · NIDDK · BRIGHAM AND WOMEN'S HOSPITAL · PI BROWN, EDWARD M · 2008 to 2011
$1.4M
CIHRNIDDK NIH HHS DK-078331
6 · The paper itself

Abstract

Calcium and phosphorus homeostasis are highly interrelated and share common regulatory hormones, including FGF23. However, little is known about calcium's role in the regulation of FGF23. We sought to investigate the regulatory roles of calcium and phosphorus in FGF23 production using genetic mouse models with targeted inactivation of PTH (PTH KO) or both PTH and the calcium-sensing receptor (CaSR; PTH-CaSR DKO). In wild-type, PTH KO, and PTH-CaSR DKO mice, elevation of either serum calcium or phosphorus by intraperitoneal injection increased serum FGF23 levels. In PTH KO and PTH-CaSR DKO mice, however, increases in serum phosphorus by dietary manipulation were accompanied by severe hypocalcemia, which appeared to blunt stimulation of FGF23 release. Increases in dietary phosphorus in PTH-CaSR DKO mice markedly decreased serum 1,25-dihydroxyvitamin D(3) [1,25(OH)(2)D(3)] despite no change in FGF23, suggesting direct regulation of 1,25(OH)(2)D(3) synthesis by serum phosphorus. Calcium-mediated increases in serum FGF23 required a threshold level of serum phosphorus of about 5 mg/dl. Analogously, phosphorus-elicited increases in FGF23 were markedly blunted if serum calcium was less than 8 mg/dl. The best correlation between calcium and phosphorus and serum FGF23 was found between FGF23 and the calcium × phosphorus product. Since calcium stimulated FGF23 production in the PTH-CaSR DKO mice, this effect cannot be mediated by the full-length CaSR. Thus the regulation of FGF23 by both calcium and phosphorus appears to be fundamentally important in coordinating the serum levels of both mineral ions and ensuring that the calcium × phosphorus product remains within a physiological range.

Indexed as

AnimalsCalciumFibroblast Growth Factor-23Fibroblast Growth FactorsGene Expression RegulationHomeostasisMaleMiceMice, KnockoutPhosphorusCalciumFgf23 protein, mouseFibroblast Growth Factor-23Fibroblast Growth FactorsPhosphorus

Identifiers

PMID23233539
PMCPMC3566433
OpenAlexW2158482269

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.