Evidence map›Paper›PMID 33784965›Full record

ArticleBMC nephrology2021

Hyperphosphatemia with elevated serum PTH and FGF23, reduced 1,25(OH)

Kittrawee Kritmetapak, Louis Losbanos, Taylor E Berent, Susan L Ashrafzadeh-Kian, Alicia Algeciras-Schimnich, Jolaine M Hines, Ravinder J Singh, Rajiv Kumar

Open access · goldAbstract read
In one paragraph

Article in BMC nephrology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.9field-weighted citation impact, top 15% 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

9 citing papers in PubMed, 19 citations in OpenAlex.

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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 3 institutions in 2 countries.

Kittrawee KritmetapakDivision of Nephrology and Hypertension, Department of Internal Medicine, Mayo Clinic, 200 1st Street SW, MN, 55905, Rochester, USA.
Louis LosbanosDivision of Nephrology and Hypertension, Department of Internal Medicine, Mayo Clinic, 200 1st Street SW, MN, 55905, Rochester, USA.
Taylor E BerentDivision of Nephrology and Hypertension, Department of Internal Medicine, Mayo Clinic, 200 1st Street SW, MN, 55905, Rochester, USA.
Susan L Ashrafzadeh-KianClinical Immunoassay Laboratory, Mayo Clinic, MN, Rochester, USA.
Alicia Algeciras-SchimnichClinical Immunoassay Laboratory, Mayo Clinic, MN, Rochester, USA.
Jolaine M HinesImmunochemical Core Laboratory, Mayo Clinic, MN, Rochester, USA.
Ravinder J SinghDepartment of Laboratory Medicine and Pathology, Mayo Clinic, MN, Rochester, USA.
Rajiv KumarDivision of Nephrology and Hypertension, Department of Internal Medicine, Mayo Clinic, 200 1st Street SW, MN, 55905, Rochester, USA. rkumar@mayo.edu.
Mayo Clinic · USMayo Clinic in Arizona · USWinnMed · US

Funding

Fractures and bone disease in living kidney donorsR01DK125252 · NIDDK · MAYO CLINIC ROCHESTER · PI KUMAR, RAJIV · 2020 to 2022
$2.1M
Regulatory gene-chemokine networks in the formation of hemodialysis AVF stenosisR01DK107870 · NIDDK · MAYO CLINIC ROCHESTER · PI KUMAR, RAJIV, MISRA, SANJAY · 2017 to 2019
$716k
NIDDK NIH HHS R01 DK107870NIDDK NIH HHS R01 DK125252
6 · The paper itself

Abstract

backgroundHyperphosphatemia confers adverse cardiovascular outcomes, and commonly occurs in late-stage CKD. Fibroblast growth factor 7 (FGF7) is a phosphaturic peptide which decreases renal phosphate transport in vitro and in vivo. Serum FGF7 concentrations are reduced in hyperphosphatemic patients with hypophosphatasia and are elevated in some hypophosphatemic patients with tumor-induced osteomalacia. No data, however, are available on whether circulating FGF7 concentrations increase to compensate for phosphate retention in CKD patients.

methodsThis was a cross-sectional study performed among 85 adult patients with varying estimated glomerular filtration rates (eGFR). We measured serum intact FGF7 (iFGF7) concentration using an iFGF7 immunoassay and determined its associated factors. Relationships between eGFR and mineral metabolism biomarkers [phosphate, iFGF7, iFGF23, parathyroid hormone (PTH), and 1,25-dihydroxyvitamin D (1,25(OH)

resultsFor eGFRs of ≥ 60 (n = 31), 45-59 (n = 16), 30-44 (n = 11), 15-29 (n = 15), and < 15 mL/min/1.73 m

conclusionsCompensatory decreases in circulating 1,25(OH)

Indexed as

AdultBiomarkersCross-Sectional StudiesFemaleFibroblast Growth Factor-23Fibroblast Growth Factor 7HumansHyperphosphatemiaMaleMiddle AgedParathyroid HormoneRenal Insufficiency, ChronicVitamin D1,25-dihydroxyvitamin DBiomarkersFGF7 protein, humanFibroblast Growth Factor-23Fibroblast Growth Factor 7Parathyroid HormoneVitamin DChronic kidney diseaseFibroblast growth factorParathyroid hormonePhosphateVitamin D

Identifiers

PMID33784965
PMCPMC8011073
OpenAlexW3141007960

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Registered trials

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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.