Evidence map›Paper›PMID 28448530›Full record

ArticlePloS one2017

Response of Npt2a knockout mice to dietary calcium and phosphorus.

Yuwen Li, Daniel Caballero, Julian Ponsetto, Alyssa Chen, Chuanlong Zhu, Jun Guo, Marie Demay, Harald Jüppner, Clemens Bergwitz

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.3field-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

15 citing papers in PubMed, 22 citations in OpenAlex.

  1. Review
  2. Article
  3. Vitamin DScientific reports · 2024
    Article
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  11. Review
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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

9 authors at 2 institutions in 2 countries.

Yuwen LiEndocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, United States of America.
Daniel CaballeroSection Endocrinology, Yale University School of Medicine, New Haven, Connecticut, United States of America.
Julian PonsettoSection Endocrinology, Yale University School of Medicine, New Haven, Connecticut, United States of America.
Alyssa ChenSection Endocrinology, Yale University School of Medicine, New Haven, Connecticut, United States of America.
Chuanlong ZhuGastroenterology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, United States of America.
Jun GuoEndocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, United States of America.
Marie DemayEndocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, United States of America.
Harald JüppnerEndocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, United States of America.
Clemens BergwitzSection Endocrinology, Yale University School of Medicine, New Haven, Connecticut, United States of America.ORCID http://orcid.org/0000-0002-7518-249X
Harvard University · USYale University · US

Funding

Tissue Phenotyping CoreP01DK011794 · NIDDK · MASSACHUSETTS GENERAL HOSPITAL · PI JUEPPNER, HARALD W. · 1986 to 2023
$44.4M
Renal Physiology and Phenotyping CoreP30DK079310 · NIDDK · YALE UNIVERSITY · PI ARONSON, PETER S. · 2008 to 2022
$16.8M
Yale Mouse Metabolic Phenotyping CenterU24DK059635 · NIDDK · YALE UNIVERSITY · PI SHULMAN, GERALD I · 2001 to 2015
$8.9M
PTH/PTHRP RECEPTOR DEFECTS IN PSEUDOHYPOPARATHYROIDISMR01DK046718 · NIDDK · MASSACHUSETTS GENERAL HOSPITAL · PI JUEPPNER, HARALD W. · 1993 to 2024
$6.0M
Skeletal Phenotyping CoreP30AR066261 · NIAMS · MASSACHUSETTS GENERAL HOSPITAL · PI KRONENBERG, HENRY M. · 2014 to 2018
$3.5M
Role of the renal sodium-phosphate co-transporter NaPi-IIc in phosphate homeostasK08DK078361 · NIDDK · MASSACHUSETTS GENERAL HOSPITAL · PI BERGWITZ, CLEMENS · 2007 to 2011
$741k
NIAMS NIH HHS P30 AR066261NIDDK NIH HHS K08 DK078361NIDDK NIH HHS P01 DK011794NIDDK NIH HHS P30 DK079310NIDDK NIH HHS R01 DK046718NIDDK NIH HHS U24 DK059635
6 · The paper itself

Abstract

Mutations in the renal sodium-dependent phosphate co-transporters NPT2a and NPT2c have been reported in patients with renal stone disease and nephrocalcinosis, but the relative contribution of genotype, dietary calcium and phosphate to the formation of renal mineral deposits is unclear. We previously reported that renal calcium phosphate deposits persist and/or reappear in older Npt2a-/- mice supplemented with phosphate despite resolution of hypercalciuria while no deposits are seen in wild-type (WT) mice on the same diet. Addition of calcium to their diets further increased calcium phosphate deposits in Npt2a-/-, but not WT mice. The response of PTH to dietary phosphate of Npt2a-/- was blunted when compared to WT mice and the response of the urinary calcium x phosphorus product to the addition of calcium and phosphate to the diet of Npt2a-/- was increased. These finding suggests that Npt2a-/- mice respond differently to dietary phosphate when compared to WT mice. Further evaluation in the Npt2a-/- cohort on different diets suggests that urinary calcium excretion, plasma phosphate and FGF23 levels appear to be positively correlated to renal mineral deposit formation while urine phosphate levels and the urine anion gap, an indirect measure of ammonia excretion, appear to be inversely correlated. Our observations in Npt2a-/- mice, if confirmed in humans, may be relevant for the optimization of existing and the development of novel therapies to prevent nephrolithiasis and nephrocalcinosis in human carriers of NPT2a and NPT2c mutations.

Indexed as

AnimalsCalciumCalcium, DietaryCalcium PhosphatesFemaleFibroblast Growth Factor-23KidneyMaleMiceMice, Inbred C57BLMice, KnockoutMineralsMutationPhosphatesPhosphorus, DietarySodium-Phosphate Cotransporter Proteins, Type IIaCalciumCalcium, Dietarycalcium phosphateCalcium PhosphatesFGF23 protein, humanFgf23 protein, mouseFibroblast Growth Factor-23MineralsPhosphatesPhosphorus, DietarySlc34a1 protein, mouseSodium-Phosphate Cotransporter Proteins, Type IIa

Identifiers

PMID28448530
PMCPMC5407772
OpenAlexW2609779102

What OpenQuestion holds

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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.