Evidence map›Paper›PMID 25844899›Full record

ArticleThe Journal of clinical investigation2015

Calcium release channel RyR2 regulates insulin release and glucose homeostasis.

Gaetano Santulli, Gennaro Pagano, Celestino Sardu, Wenjun Xie, Steven Reiken, Salvatore Luca D'Ascia, Michele Cannone, Nicola Marziliano, Bruno Trimarco, Theresa A Guise and 2 more

Erratum issuedOpen access · bronzeAbstract read
In one paragraph

Article in The Journal of clinical investigation, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 125 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
125citing papers in PubMed, 3 pooled it
0.9field-weighted citation impact, top 25% 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

125 citing papers in PubMed, 3 syntheses or guidelines pooled it, 15 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Review
  6. Cytochrome P450 1a (CYP1A)-Knockout Javanese Medaka Fish Exhibit Diabetic Traits and Reduced Reproductive Capacity.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2026
    Article
  7. Review
  8. Review
  9. Extrachromosomal Circular DNA and Transposable Elements in Type 2 Diabetes.International journal of molecular sciences · 2025
    Review
  10. Article
  11. Review
  12. Review
  13. Article
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  15. Article
  16. Article
  17. Article
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  19. Article
  20. Purinergic agonists increase [CaAmerican journal of physiology. Cell physiology · 2024
    Article

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors at 6 institutions in 6 countries.

Gaetano Santulli
Gennaro Pagano
Celestino Sardu
Wenjun Xie
Steven Reiken
Salvatore Luca D'Ascia
Michele Cannone
Nicola Marziliano
Bruno Trimarco
Theresa A Guise
Alain Lacampagne
Andrew R Marks
Columbia University · USFederico II University Hospital · ITCentre National de la Recherche Scientifique · FRIndiana University Bloomington · USLeiden University · NLUniversity of Parma · IT

Funding

Molecular Basis of Sudden Cardiac DeathP01HL067849 · NHLBI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI D'ARMIENTO, JEANINE M · 2001 to 2011
$15.0M
MOLECULAR BASIS OF HEART FAILURER01HL061503 · NHLBI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI MARKS, ANDREW ROBERT · 1998 to 2016
$6.5M
CARDIAC AND SKELETAL MUSCLE CALCIUM RELEASE CHANNELSR01HL056180 · NHLBI · MOUNT SINAI SCHOOL OF MEDICINE OF CUNY · PI MARKS, ANDREW ROBERT · 1996 to 2009
$4.0M
Intracellular calcium leak and muscle functionR01AR060037 · NIAMS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI MARKS, ANDREW ROBERT · 2010 to 2014
$1.7M
Novel Therapeutic Approaches to Atrial Fibrillation Targeting Intracellular CalciR01HL102040 · NHLBI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI MARKS, ANDREW ROBERT · 2011 to 2014
$1.6M
Regulation of cardiac ion channel function via allosteric modulatorsR01HL083418 · NHLBI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI MARKS, ANDREW ROBERT · 2006 to 2007
$841k
NHLBI NIH HHS P01 HL067849NHLBI NIH HHS R01 HL056180NHLBI NIH HHS R01 HL061503NHLBI NIH HHS R01HL061503NHLBI NIH HHS R01 HL083418NHLBI NIH HHS R01 HL102040NHLBI NIH HHS R01HL102040NIAMS NIH HHS R01 AR060037NIAMS NIH HHS R01AR060037
6 · The paper itself

Abstract

The type 2 ryanodine receptor (RyR2) is a Ca2+ release channel on the endoplasmic reticulum (ER) of several types of cells, including cardiomyocytes and pancreatic β cells. In cardiomyocytes, RyR2-dependent Ca2+ release is critical for excitation-contraction coupling; however, a functional role for RyR2 in β cell insulin secretion and diabetes mellitus remains controversial. Here, we took advantage of rare RyR2 mutations that were identified in patients with a genetic form of exercise-induced sudden death (catecholaminergic polymorphic ventricular tachycardia [CPVT]). As these mutations result in a "leaky" RyR2 channel, we exploited them to assess RyR2 channel function in β cell dynamics. We discovered that CPVT patients with mutant leaky RyR2 present with glucose intolerance, which was heretofore unappreciated. In mice, transgenic expression of CPVT-associated RyR2 resulted in impaired glucose homeostasis, and an in-depth evaluation of pancreatic islets and β cells from these animals revealed intracellular Ca2+ leak via oxidized and nitrosylated RyR2 channels, activated ER stress response, mitochondrial dysfunction, and decreased fuel-stimulated insulin release. Additionally, we verified the effects of the pharmacological inhibition of intracellular Ca2+ leak in CPVT-associated RyR2-expressing mice, in human islets from diabetic patients, and in an established murine model of type 2 diabetes mellitus. Taken together, our data indicate that RyR2 channels play a crucial role in the regulation of insulin secretion and glucose homeostasis.

Indexed as

AdultAmino Acid SubstitutionAnimalsCalciumDiabetes Mellitus, Type 2Endoplasmic Reticulum StressFemaleGlucagonGlucoseGlucose IntoleranceHomeostasisHumansInsulinInsulin SecretionIon TransportIslets of LangerhansCalciumGlucagonGlucoseInsulinRyanodine Receptor Calcium Release Channel

Identifiers

PMID25844899
PMCPMC4463204
OpenAlexW2006446390

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.