Evidence map›Paper›PMID 22739976›Full record

ArticleKidney international2012

Assessment of 24,25(OH)2D levels does not support FGF23-mediated catabolism of vitamin D metabolites.

Bing Dai, Valentin David, Hala M Alshayeb, Arif Showkat, Geeta Gyamlani, Ronald L Horst, Barry M Wall, L Darryl Quarles

Open access · hybridAbstract read
In one paragraph

Article in Kidney international, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
3.3field-weighted citation impact, top 8% 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

16 citing papers in PubMed, 40 citations in OpenAlex.

  1. Differential effects of phosphate binders on vitamin D metabolism in chronic kidney disease.Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association · 2020
    Trial
  2. Review
  3. The metabolism of 1,25(OH)Scientific reports · 2022
    Article
  4. Review
  5. Article
  6. Article
  7. Genetic background influences cardiac phenotype in murine chronic kidney disease.Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association · 2018
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Activation of FGF-23 mediated vitamin D degradative pathways by cholecalciferol.The Journal of clinical endocrinology and metabolism · 2014
    Article
  13. Estimated GFR and circulating 24,25-dihydroxyvitamin D3 concentration: a participant-level analysis of 5 cohort studies and clinical trials.American journal of kidney diseases : the official journal of the National Kidney Foundation · 2014
    Article
  14. Article
  15. Article
  16. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 2 institutions in 1 country.

Bing DaiDivision of Nephrology, Department of Medicine, University of Tennessee Health Science Center, Memphis, Tennessee 38163, USA.
Valentin David
Hala M Alshayeb
Arif Showkat
Geeta Gyamlani
Ronald L Horst
Barry M Wall
L Darryl Quarles
University of Tennessee Health Science Center · USVeterans Health Administration · US

Funding

Regulation and Function of FGF23R01AR045955 · NIAMS · UNIVERSITY OF TENNESSEE HEALTH SCI CTR · PI QUARLES, L DARRYL · 1999 to 2016
$4.8M
Regulation and Function of FGF23R56AR045955 · NIAMS · UNIVERSITY OF TENNESSEE HEALTH SCI CTR · PI QUARLES, L DARRYL · 2009 to 2009
$370k
NIAMS NIH HHS R01 AR045955NIAMS NIH HHS R01-AR45955NIAMS NIH HHS R56 AR045955
6 · The paper itself

Abstract

Progressive elevations of fibroblastic growth factor 23 (FGF23) in chronic kidney disease may reduce serum 25-hydroxyvitamin D (25(OH)) and 1,25-dihydroxyvitamin D (1,25(OH)(2)D) levels, via stimulation of 24-hydroxylase (Cyp24a1)-mediated catabolism of these vitamin D metabolites. To test this possibility, we measured serum concentrations of 24,25-dihydroxyvitamin D (24,25(OH)(2)D), a product of Cyp24a1 hydroxylation of 25(OH)D, in the Col4a3 knockout mouse, a model of Alport syndrome-derived chronic kidney disease, and in patients with chronic kidney disease of variable severity. There was an inverse correlation between serum FGF23 and both 25(OH)D and 1,25(OH)(2)D in the mouse model, but no significant relationship was observed in the cross-sectional patient cohort. The FGF23-dependent increase in Cyp24a1 mRNA expression in the mouse kidneys was consistent with the possibility that FGF23 induces vitamin D catabolism. There was, however, a reduction in serum 24,25(OH)(2)D levels, rather than the expected elevation, in both the mice and patients with chronic kidney disease. Low 25(OH)D and elevated FGF23 and parathyroid hormone levels were correlated with the reduced serum 24,25(OH)(2)D concentrations of these patients. Thus, we failed to find support for FGF23-mediated catabolism of vitamin D metabolites in chronic kidney disease assessed by 24,25(OH)(2)D levels.

Indexed as

25-Hydroxyvitamin D3 1-alpha-HydroxylaseAgedAnimalsAutoantigensBiomarkersChi-Square DistributionCollagen Type IVCross-Sectional StudiesDihydroxycholecalciferolsDisease Models, AnimalDown-RegulationFemaleFibroblast Growth Factor-23Fibroblast Growth FactorsHumansHydroxylation25-hydroxyvitamin D25-Hydroxyvitamin D3 1-alpha-HydroxylaseAutoantigensBiomarkersCollagen Type IVCYP24A1 protein, humanCyp24a1 protein, mouseDihydroxycholecalciferolsFGF23 protein, humanFgf23 protein, mouseFibroblast Growth Factor-23Fibroblast Growth FactorsParathyroid HormonePTH protein, humanRNA, MessengerSteroid Hydroxylasestype IV collagen alpha3 chainVitamin DVitamin D3 24-Hydroxylase

Identifiers

PMID22739976
PMCPMC3461248
OpenAlexW2055787287

What OpenQuestion holds

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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.