Evidence map›Paper›PMID 22956819›Full record

ArticleJournal of the American Society of Nephrology : JASN2012

Identification and characterization of an activating F229V substitution in the V2 vasopressin receptor in an infant with NSIAD.

Eric Carpentier, Larry A Greenbaum, Driss Rochdi, Ravinder Abrol, William A Goddard, Daniel G Bichet, Michel Bouvier

Abstract readCase Reports
In one paragraph

Article in Journal of the American Society of Nephrology : JASN, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
4.5field-weighted citation impact, top 6% 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

26 citing papers in PubMed, 66 citations in OpenAlex.

  1. Article
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  4. The biology of water homeostasis.Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association · 2025
    Review
  5. Review
  6. Article
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  9. Clinical, Genetic and Functional Characterization of a NovelJournal of personalized medicine · 2022
    Article
  10. Review
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  13. Article
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  18. Germline-Derived Gain-of-Function Variants of GsJournal of the American Society of Nephrology : JASN · 2019
    Article
  19. Review
  20. 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

7 authors at 4 institutions in 2 countries.

Eric CarpentierInstitute for Research in Immunology and Cancer, Université de Montréal, C.P. 6128 Succursale Centre-Ville, Montréal, Québec, Canada.
Larry A Greenbaum
Driss Rochdi
Ravinder Abrol
William A Goddard
Daniel G Bichet
Michel Bouvier
Université de Montréal · CACalifornia Institute of Technology · USEmory University · USInstitute for Research in Immunology and Cancer · CA

Funding

Canadian Institutes of Health Research
6 · The paper itself

Abstract

Gain-of-function mutations in the gene encoding the V2 vasopressin receptor (V2R) cause nephrogenic syndrome of inappropriate antidiuresis. To date, reported mutations lead to the substitution of arginine 137 by either a cysteine or leucine (R137C/L). Here, we describe a 3-month-old hyponatremic infant found to have a phenylalanine 229 to valine (F229V) substitution in V2R. Characterization of this substitution in vitro revealed that it leads to high constitutive activity of the receptor, compatible with spontaneous antidiuresis. In contrast to R137C/L mutant receptors, F229V receptors do not undergo spontaneous desensitization, which results in sustained, high basal activity. Notably, the V2R-selective inverse agonists tolvaptan and satavaptan completely silenced the constitutive signaling activity of the F229V mutant receptor, indicating that this substitution does not lock the receptor in an irreversible active state. Thus, inverse agonists might prove to be effective therapies for treating patients with this or other spontaneously activating mutations that do not lock the V2R in its active state. These results emphasize the importance of genetic testing and the functional characterization of mutant receptors for patients with nephrogenic syndrome of inappropriate antidiuresis because the results might inform treatment decisions.

Indexed as

Amino Acid SequenceAmino Acid SubstitutionArrestinsbeta-ArrestinsCell MembraneFatty Acid-Binding ProteinsGenetic Diseases, X-LinkedHEK293 CellsHumansHyponatremiaInappropriate ADH SyndromeInfantMaleMolecular Sequence DataMutant ProteinsProtein Structure, TertiaryArrestinsbeta-ArrestinsFABP4 protein, humanFatty Acid-Binding ProteinsMutant ProteinsReceptors, VasopressinRecombinant Fusion Proteins

Identifiers

PMID22956819
PMCPMC3458462
OpenAlexW2156530529

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.