Evidence map›Paper›PMID 26952749›Full record

ArticleReproductive biology2016

Slc20a2 deficiency results in fetal growth restriction and placental calcification associated with thickened basement membranes and novel CD13 and lamininα1 expressing cells.

Mary C Wallingford, Hilary S Gammill, Cecilia M Giachelli

Open access · greenAbstract read
In one paragraph

Article in Reproductive biology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
4.0field-weighted citation impact, top 7% 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

20 citing papers in PubMed, 37 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
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  6. Pharmacology of Mammalian NaHandbook of experimental pharmacology · 2024
    Article
  7. Article
  8. Review
  9. Article
  10. Review
  11. Article
  12. Review
  13. Frontiers in genetics · 2021
    Article
  14. Article
  15. Slc20a2, Encoding the Phosphate Transporter PiT2, Is an Important Genetic Determinant of Bone Quality and Strength.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2019
    Article
  16. Article
  17. Article
  18. Brain calcifications andNeurology. Genetics · 2017
    Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Mary C WallingfordUniversity of Washington, Department of Bioengineering, 3720 15th Ave NE, Seattle, WA 98195, USA. Electronic address: marycwallingford@gmail.com.
Hilary S GammillUniversity of Washington, Department of Obstetrics and Gynecology, Seattle, WA 98195, USA. Electronic address: hgammill@uw.edu.
Cecilia M GiachelliUniversity of Washington, Department of Bioengineering, 3720 15th Ave NE, Seattle, WA 98195, USA. Electronic address: ceci@uw.edu.
University of Washington · US

Funding

CARDIOVASCULAR RESEARCH TRAINING PROGRAMT32HL007828 · NHLBI · UNIVERSITY OF WASHINGTON · PI Francis Kim, Farid Moussavi-Harami · 1997 to 2026
$10.2M
Vascular Calcification MechanismR01HL062329 · NHLBI · UNIVERSITY OF WASHINGTON · PI GIACHELLI, CECILIA M · 1999 to 2017
$5.3M
Calcification and Vascular Cell DifferentiationR01HL081785 · NHLBI · UNIVERSITY OF WASHINGTON · PI GIACHELLI, CECILIA M · 2005 to 2017
$3.7M
Role of Osteoclastogenesis in Calcific Aortic Valve DiseaseR01HL114611 · NHLBI · UNIVERSITY OF WASHINGTON · PI GIACHELLI, CECILIA M · 2012 to 2016
$1.9M
The Maternal Anti-fetal Immune Response & Role of Microchimerism in PreeclamsiaK08HD067221 · NICHD · UNIVERSITY OF WASHINGTON · PI GAMMILL, HILARY SEGLIN · 2012 to 2016
$644k
Determination of maternal-fetal phosphate transport mechanisms and the role of sodium-dependent phosphate transporters in extraembryonic tissuesK99HD090198 · NICHD · UNIVERSITY OF WASHINGTON · PI WALLINGFORD, MARY CATHERINE · 2017 to 2017
$108k
NHLBI NIH HHS HL081785NHLBI NIH HHS HL114611NHLBI NIH HHS HL62329NHLBI NIH HHS R01 HL062329NHLBI NIH HHS R01 HL081785NHLBI NIH HHS R01 HL114611NHLBI NIH HHS T32 HL007828NHLBI NIH HHS T32HL007828NICHD NIH HHS K08 HD067221NICHD NIH HHS K99 HD090198
6 · The paper itself

Abstract

The essential nutrient phosphorus must be taken up by the mammalian embryo during gestation. The mechanism(s) and key proteins responsible for maternal to fetal phosphate transport have not been identified. Established parameters for placental phosphate transport match those of the type III phosphate transporters, Slc20a1 and Slc20a2. Both members are expressed in human placenta, and their altered expression is linked to preeclampsia. In this study, we tested the hypothesis that Slc20a2 is required for placental function. Indeed, complete deficiency of Slc20a2 in either the maternal or embryonic placental compartment results in fetal growth restriction. We found that Slc20a2 null mice can reproduce, but are subviable; ∼50% are lost prior to weaning age. We also observed that 23% of Slc20a2 deficient females develop pregnancy complications at full term, with tremors and placental abnormalities including abnormal vascular structure, increased basement membrane deposition, abundant calcification, and accumulation of novel CD13 and lamininα1 positive cells. Together these data support that Slc20a2 deficiency impacts both maternal and neonatal health, and Slc20a2 is required for normal placental function. In humans, decreased levels of placental Slc20a1 and Slc20a2 have been correlated with early onset preeclampsia, a disorder that can manifest from placental dysfunction. In addition, preterm placental calcification has been associated with poor pregnancy outcomes. We surveyed placental calcification in human preeclamptic placenta samples, and detected basement membrane-associated placental calcification as well as a comparable lamininα1 positive cell type, indicating that similar mechanisms may underlie both human and mouse placental calcification.

Indexed as

AnimalsCD13 AntigensFemaleFetal Growth RetardationHumansLamininMicePlacenta DiseasesPregnancySodium-Phosphate Cotransporter Proteins, Type IIICD13 AntigensLamininlaminin ASlc20a2 protein, mouseSodium-Phosphate Cotransporter Proteins, Type IIILamininPhosphate transportPiT-2Placental calcificationSlc20a2

Identifiers

PMID26952749
PMCPMC4841690
OpenAlexW2294580839

What OpenQuestion holds

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Read underepoch 390

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.