Evidence map›Paper›PMID 27378183›Full record

ArticlePediatric nephrology (Berlin, Germany)2016

Loss of function of NaPiIIa causes nephrocalcinosis and possibly kidney insufficiency.

Dganit Dinour, Miriam Davidovits, Liat Ganon, Justyna Ruminska, Ian C Forster, Nati Hernando, Eran Eyal, Eli J Holtzman, Carsten A Wagner

Open access · greenAbstract readCase Reports
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In one paragraph

Article in Pediatric nephrology (Berlin, Germany), 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
4.6field-weighted citation impact, top 5% 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

24 citing papers in PubMed, 38 citations in OpenAlex.

  1. The effects of elevated phosphate on the kidney - damaging the gatekeeper.Pflugers Archiv : European journal of physiology · 2026
    Review
  2. Article
  3. Identification of a Novel HomozygousInternational journal of molecular sciences · 2025
    Article
  4. Updates on renal phosphate transport.Current opinion in nephrology and hypertension · 2025
    Review
  5. Article
  6. Pharmacology of Mammalian NaHandbook of experimental pharmacology · 2024
    Article
  7. Article
  8. Long-term outcome of the survivors of infantile hypercalcaemia with CYP24A1 and SLC34A1 mutations.Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association · 2021
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Mechanisms of phosphate transport.Nature reviews. Nephrology · 2019
    Review
  14. Review
  15. Article
  16. Review
  17. Review
  18. Review
  19. Review
  20. Juvenile onset IIH andBone reports · 2018
    Article
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 3 institutions in 2 countries.

Dganit DinourDepartment of Nephrology and Hypertension, The Chaim Sheba Medical Center, Tel-Hashomer, Israel. Dganit.Dinour@sheba.health.gov.il.ORCID 0000-0002-9311-7376
Miriam DavidovitsInstitute of Pediatric Nephrology, Schneider Children's Medical Center, Petah Tiqwa, Israel.
Liat GanonDepartment of Nephrology and Hypertension, The Chaim Sheba Medical Center, Tel-Hashomer, Israel.
Justyna RuminskaInstitute of Physiology, University of Zurich, Zurich, Switzerland.
Ian C ForsterInstitute of Pediatric Nephrology, Schneider Children's Medical Center, Petah Tiqwa, Israel.
Nati HernandoInstitute of Physiology, University of Zurich, Zurich, Switzerland.
Eran EyalCancer Research Center, The Chaim Sheba Medical Center, Tehomer, Israel.
Eli J HoltzmanDepartment of Nephrology and Hypertension, The Chaim Sheba Medical Center, Tel-Hashomer, Israel.
Carsten A WagnerInstitute of Physiology, University of Zurich, Zurich, Switzerland.
Sheba Medical Center · ILUniversity of Zurich · CHSchneider Children's Medical Center · IL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundInherited metabolic disorders associated with nephrocalcinosis are rare conditions. The aim of this study was to identify the genetic cause of an Israeli-Arab boy from a consanguineous family with severe nephrocalcinosis and kidney insufficiency.

methodsClinical and biochemical data of the proband and family members were obtained from both previous and recent medical charts. Genomic DNA was isolated from peripheral blood cells. The coding sequence and splice sites of candidate genes (CYP24A1, CYP27B1, FGF23, KLOTHO, SLC34A3 and SLC34A1) were sequenced directly. Functional studies were performed in Xenopus laevis oocytes and in transfected opossum kidney (OK) cells.

resultsOur patient was identified as having nephrocalcinosis in utero, and at the age of 16.5 years, he had kidney insufficiency but no bone disease. Genetic analysis revealed a novel homozygous missense mutation, Arg215Gln, in SLC34A1, which encodes the renal sodium phosphate cotransporter NaPiIIa. Functional studies of the Arg215Gln mutant revealed reduced transport activity in Xenopus laevis oocytes and increased intracellular cytoplasmic accumulation in OK cells.

conclusionsOur findings show that dysfunction of the human NaPiIIa causes severe renal calcification that may eventually lead to reduced kidney function, rather than complications of phosphate loss.

Indexed as

AdolescentAnimalsComputer SimulationDNAFibroblast Growth Factor-23HumansKidneyKidney Tubules, ProximalMaleMutationMutation, MissenseNephrocalcinosisOocytesOpossumsRenal InsufficiencySodium-Phosphate Cotransporter Proteins, Type IIaDNAFGF23 protein, humanFibroblast Growth Factor-23SLC34A1 protein, humanSodium-Phosphate Cotransporter Proteins, Type IIaNaPiIIaNephrocalcinosisSLC34A1 mutationVitamin D

Identifiers

PMID27378183
OpenAlexW2466307295

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.