Evidence map›Paper›PMID 29621752›Full record

ArticleAmerican journal of nephrology2018

Fibroblast Growth Factor 23: A Biomarker of Kidney Function Decline.

David A Drew, Ronit Katz, Stephen Kritchevsky, Joachim H Ix, Michael G Shlipak, Anne B Newman, Andy Hoofnagle, Linda Fried, Mark J Sarnak, Orlando M Gutierrez

Open access · bronzeAbstract read
In one paragraph

Article in American journal of nephrology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.6field-weighted citation impact, top 20% 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

7 citing papers in PubMed, 20 citations in OpenAlex.

  1. Article
  2. Article
  3. Fibroblast Growth Factor 23, Urinary Phosphate, and Risk of Progression of CKD.Clinical journal of the American Society of Nephrology : CJASN · 2026
    Article
  4. Article
  5. Observational
  6. Fibroblast growth factor 23 and new-onset chronic kidney disease in the general population: the Prevention of Renal and Vascular Endstage Disease (PREVEND) study.Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association · 2021
    Article
  7. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 8 institutions in 1 country.

David A DrewTufts Medical Center, Boston, Massachusetts, USA.
Ronit KatzUniversity of Washington, Seattle, Washington, USA.
Stephen KritchevskyWake Forest University, Winston-Salem, North Carolina, USA.
Joachim H IxUniversity of California San Diego School of Medicine, San Diego, California, USA.
Michael G ShlipakUniversity of California San Francisco School of Medicine, San Francisco, California, USA.
Anne B NewmanUniversity of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA.
Andy HoofnagleUniversity of Washington, Seattle, Washington, USA.
Linda FriedVA Pittsburgh Healthcare System, Pittsburgh, Pennsylvania, USA.
Mark J SarnakTufts Medical Center, Boston, Massachusetts, USA.
Orlando M GutierrezUniversity of Alabama School of Medicine, Birmingham, Alabama, USA.
Tufts Medical Center · USUniversity of Washington · USUniversity of Alabama at Birmingham · USUniversity of California San Diego · USUniversity of California, San Francisco · USUniversity of Pittsburgh · USVA Pittsburgh Healthcare System · USWake Forest University · US

Funding

PILOT STUDY--CLINICAL NUTRITION RESEARCHP30DK035816 · NIDDK · UNIVERSITY OF WASHINGTON · PI Ellen A Schur · 1986 to 2026
$30.4M
University of Alabama at Birmingham's Diabetes Research CenterP30DK079626 · NIDDK · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI Kirk Michael Habegger · 2013 to 2026
$19.5M
The Aging Kidney: Chronic Injury, Impaired Functions and Clinical OutcomesR01AG027002 · NIA · TUFTS MEDICAL CENTER · PI PARIKH, SAMIR M, SARNAK, MARK J · 2005 to 2022
$7.3M
Peripheral Nerve Function Decline in an Aged CohortR01AG028050 · NIA · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI STROTMEYER, ELSA S. · 2007 to 2015
$3.5M
End of Life in the Very OldR01NR012459 · NINR · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI ALBERT, STEVEN M, LUNNEY, JUNE R · 2011 to 2015
$2.7M
Impact of disordered mineral metabolism on stroke and cognitive impairmentR01NS080850 · NINDS · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI GUTIERREZ, ORLANDO M · 2012 to 2016
$1.2M
The association of FGF-23 and Klotho with cognitive impairment and cerebrovascular disease in chronic kidney diseaseK23DK105327 · NIDDK · TUFTS MEDICAL CENTER · PI DREW, DAVID ALAN · 2016 to 2020
$958k
NIA NIH HHS R01 AG027002NIA NIH HHS R01 AG028050NIDDK NIH HHS K23 DK105327NIDDK NIH HHS P30 DK035816NIDDK NIH HHS P30 DK079626NINDS NIH HHS R01 NS080850NINR NIH HHS R01 NR012459
6 · The paper itself

Abstract

backgroundFibroblast growth factor 23 (FGF-23) is a hormone that regulates phosphorus levels and vitamin D metabolism. Previous studies have shown FGF-23 to be a risk factor for incident end-stage renal disease; however, there are less data on the association of FGF-23 with earlier kidney-related outcomes.

methodsSerum FGF-23 was assayed using an intact ELISA assay in 2,496 participants of the Healthy Aging and Body Composition Study, a cohort of well-functioning older adults. Kidney function was estimated by assaying cystatin C at baseline and years 3 and 10. The associations between FGF-23 and decline in kidney function (defined by estimated glomerular filtration rate (eGFR) decline ≥30% or ≥3 mL/min/year) and incident chronic kidney disease (CKD; incident eGFR <60 mL/min/1.73 m2 and ≥1 mL/min/year decline) were evaluated. Models were adjusted for demographics, baseline eGFR, urine albumin/creatinine ratio, comorbidity, and serum calcium, phosphorus, 25(OH) vitamin D and parathyroid hormone.

resultsThe mean (SD) age was 75 (3) years, with 52% female and 38% black. There were 405 persons with 30% decline, 702 with >3 mL/min/year decline, and 536 with incident CKD. In fully adjusted continuous models, doubling of FGF-23 concentrations was not associated with kidney function decline (OR [95% CI] = 0.98 [0.82-1.19] for ≥30% decline and OR 1.17 [95% CI 1.00-1.37] for ≥3 mL/min/year decline), or incident CKD (incident rate ratio [IRR] 1.05 [95% CI 0.91-1.22]). In adjusted quartile analysis, the highest quartile of FGF-23 was significantly associated with incident CKD (IRR 1.27 [95% CI 1.02-1.58] for highest vs. lowest quartile).

conclusionHigher FGF-23 concentrations were not consistently associated with decline in kidney function or incident CKD in community-dwelling older adults.

Indexed as

AgedBiomarkersFemaleFibroblast Growth Factor-23Fibroblast Growth FactorsHumansIncidenceKidney Function TestsMaleProspective StudiesRenal Insufficiency, ChronicUnited StatesBiomarkersFGF23 protein, humanFibroblast Growth Factor-23Fibroblast Growth FactorsBiomarkerFibroblast growth factor 23Incident chronic kidney diseaseKidney function decline

Identifiers

PMID29621752
PMCPMC6364678
OpenAlexW2795381424

What OpenQuestion holds

Textmetadata
LicenceTDM
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.