Evidence map›Paper›PMID 24717293›Full record

ArticleKidney international2014

Vascular calcification is dependent on plasma levels of pyrophosphate.

Koba A Lomashvili, Sonoko Narisawa, Jose L Millán, W Charles O'Neill

Abstract read
In one paragraph

Article in Kidney international, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 90 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
90citing papers in PubMed, 1 pooled it
10.5field-weighted citation impact, top 1% 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

90 citing papers in PubMed, 1 synthesis or guideline pooled it, 153 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Review
  5. Calciphylaxis in children: a case series and systematic review.Pediatric nephrology (Berlin, Germany) · 2026
    Review
  6. Review
  7. Considerations in the Use of Mouse Models of Vascular and Valvular Calcification.Arteriosclerosis, thrombosis, and vascular biology · 2026
    Review
  8. Peripheral Vascular Calcification.Arteriosclerosis, thrombosis, and vascular biology · 2026
    Review
  9. Review
  10. Review
  11. Article
  12. Article
  13. Novel treatment for PXE: Recombinant ENPP1 enzyme therapy.Molecular therapy : the journal of the American Society of Gene Therapy · 2024
    Article
  14. Review
  15. Article
  16. Review
  17. Review
  18. Article
  19. ENPP1 Immunobiology as a Therapeutic Target.Clinical cancer research : an official journal of the American Association for Cancer Research · 2023
    Review
  20. Review

30 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 2 institutions in 1 country.

Koba A LomashviliRenal Division, Emory University School of Medicine, Atlanta, Georgia, USA.
Sonoko NarisawaSanford-Burnham Medical Research Institute, Atlanta, Georgia, USA.
Jose L MillánSanford-Burnham Medical Research Institute, Atlanta, Georgia, USA.
W Charles O'NeillRenal Division, Emory University School of Medicine, Atlanta, Georgia, USA.
Emory University · USSanford Burnham Prebys Medical Discovery Institute · US

Funding

Pyrosphate In Vascular Calcification of Renal FailureR01DK069681 · NIDDK · EMORY UNIVERSITY · PI O'NEILL, W CHARLES · 2006 to 2010
$1.6M
Mechanisms of uremic vascular calcificationK08DK079176 · NIDDK · EMORY UNIVERSITY · PI LOMASHVILI, KOBA A · 2009 to 2013
$708k
NIDDK NIH HHS DK069681NIDDK NIH HHS DK079176NIDDK NIH HHS K08 DK079176NIDDK NIH HHS R01 DK069681
6 · The paper itself

Abstract

Plasma levels of pyrophosphate, an endogenous inhibitor of vascular calcification, are reduced in end-stage renal disease and correlate inversely with arterial calcification. However, it is not known whether the low plasma levels are directly pathogenic or are merely a marker of reduced tissue levels. This was tested in an animal model in which aortas were transplanted between normal mice and Enpp1(-/-) mice lacking ectonucleotide pyrophosphatase phosphodiesterase, the enzyme that synthesizes extracellular pyrophosphate. Enpp1(-/-) mice had very low plasma pyrophosphate and developed aortic calcification by 2 months that was greatly accelerated with a high-phosphate diet. Aortas of Enpp1(-/-) mice showed no further calcification after transplantation into wild-type mice fed a high-phosphate diet. Aorta allografts of wild-type mice calcified in Enpp1(-/-) mice but less so than the adjacent recipient Enpp1(-/-) aorta. Donor and recipient aortic calcium contents did not differ in transplants between wild-type and Enpp1(-/-) mice, demonstrating that transplantation per se did not affect calcification. Histology revealed medial calcification with no signs of rejection. Thus, normal levels of extracellular pyrophosphate are sufficient to prevent vascular calcification, and systemic Enpp1 deficiency is sufficient to produce vascular calcification despite normal vascular extracellular pyrophosphate production. This establishes an important role for circulating extracellular pyrophosphate in preventing vascular calcification.

Indexed as

AnimalsAortaAortic DiseasesCalciumDiphosphatesDisease Models, AnimalDisease ProgressionMice, Inbred C57BLMice, KnockoutPhosphoric Diester HydrolasesPhosphorus, DietaryPyrophosphatasesTime FactorsVascular CalcificationCalciumDiphosphatesdiphosphoric acidectonucleotide pyrophosphatase phosphodiesterase 1Phosphoric Diester HydrolasesPhosphorus, DietaryPyrophosphatases

Identifiers

PMID24717293
PMCPMC4308968
OpenAlexW2035471726

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.