Evidence map›Paper›PMID 23224894›Full record

ReviewAdvances in experimental medicine and biology2013

Cardiac sodium-calcium exchange and efficient excitation-contraction coupling: implications for heart disease.

Joshua I Goldhaber, Kenneth D Philipson

Abstract readReview
In one paragraph

Review in Advances in experimental medicine and biology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
28.3field-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

22 citing papers in PubMed, 52 citations in OpenAlex.

  1. Regulation of Na/Ca exchange by cytoplasmic protons modifies intracellular calcium dynamics and the cardiac response to ischemia.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  2. Review
  3. Article
  4. Suppressing Effect of NaInternational journal of molecular sciences · 2022
    Article
  5. Article
  6. Elevated perfusate [NaScientific reports · 2020
    Article
  7. Modulation of the cardiac NaCell calcium · 2020
    Review
  8. Article
  9. Review
  10. Review
  11. Article
  12. Dysfunction of the β2-spectrin-based pathway in human heart failure.American journal of physiology. Heart and circulatory physiology · 2016
    Article
  13. Review
  14. Review
  15. Article
  16. Article
  17. Article
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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

2 authors at 2 institutions in 1 country.

Joshua I GoldhaberCedars-Sinai Heart Institute, Los Angeles, CA 90048, USA. goldhaberj@cshs.org
Kenneth D Philipson
Cedars-Sinai Medical Center · USCedars-Sinai Smidt Heart Institute · US

Funding

Molecular Biology of Cardiac Sodium-Calcium ExchangeR01HL048509 · NHLBI · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI GOLDHABER, JOSHUA I, PHILIPSON, KENNETH · 2002 to 2016
$4.7M
Metabolic Regulation of Cardiac E-C CouplingR01HL070828 · NHLBI · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI GOLDHABER, JOSHUA I · 2002 to 2013
$3.8M
NHLBI NIH HHS R01 HL048509NHLBI NIH HHS R01 HL070828
6 · The paper itself

Abstract

Cardiovascular disease is a leading cause of death worldwide, with ischemic heart disease alone accounting for >12% of all deaths, more than HIV/AIDS, tuberculosis, lung, and breast cancer combined. Heart disease has been the leading cause of death in the United States for the past 85 years and is a major cause of disability and health-care expenditures. The cardiac conditions most likely to result in death include heart failure and arrhythmias, both a consequence of ischemic coronary disease and myocardial infarction, though chronic hypertension and valvular diseases are also important causes of heart failure. Sodium-calcium exchange (NCX) is the dominant calcium (Ca2+) efflux mechanism in cardiac cells. Using ventricular-specific NCX knockout mice, we have found that NCX is also an essential regulator of cardiac contractility independent of sarcoplasmic reticulum Ca2+ load. During the upstroke of the action potential, sodium (Na+) ions enter the diadic cleft space between the sarcolemma and the sarcoplasmic reticulum. The rise in cleft Na+, in conjunction with depolarization, causes NCX to transiently reverse. Ca2+ entry by this mechanism then "primes" the diadic cleft so that subsequent Ca2+ entry through Ca2+ channels can more efficiently trigger Ca2+ release from the sarcoplasmic reticulum. In NCX knockout mice, this mechanism is inoperative (Na+ current has no effect on the Ca2+ transient), and excitation-contraction coupling relies upon the elevated diadic cleft Ca2+ that arises from the slow extrusion of cytoplasmic Ca2+ by the ATP-dependent sarcolemmal Ca2+ pump. Thus, our data support the conclusion that NCX is an important regulator of cardiac contractility. These findings suggest that manipulation of NCX may be beneficial in the treatment of heart failure.

Indexed as

Myocardial ContractionAnimalsCalciumFemaleHeart FailureHumansMaleMiceMice, KnockoutMuscle ProteinsMyocardiumSarcoplasmic ReticulumSodium-Calcium ExchangerCalciumMuscle ProteinsSodium-Calcium Exchanger

Identifiers

PMID23224894
PMCPMC3903336
OpenAlexW177000286

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.