Evidence map›Paper›PMID 32857593›Full record

ArticleAmerican journal of physiology. Heart and circulatory physiology2020

Mitochondrial calcium uniporter complex activation protects against calcium alternans in atrial myocytes.

Yuriana Oropeza-Almazán, Lothar A Blatter

Open access · greenAbstract read
In one paragraph

Article in American journal of physiology. Heart and circulatory physiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.8field-weighted citation impact, top 15% 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

15 citing papers in PubMed, 26 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Functional remodelling of perinuclear mitochondria alters nucleoplasmic CaPhilosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022
    Article
  8. Cardiovascular effects of immunosuppression agents.Frontiers in cardiovascular medicine · 2022
    Review
  9. Stop the beat to see the rhythm: excitation-contraction uncoupling in cardiac research.American journal of physiology. Heart and circulatory physiology · 2021
    Review
  10. Nucleoplasmic CaCirculation research · 2021
    Article
  11. Excitation-contraction coupling and calcium release in atrial muscle.Pflugers Archiv : European journal of physiology · 2021
    Review
  12. Review
  13. Article
  14. Review
  15. Review
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 1 institution in 1 country.

Yuriana Oropeza-AlmazánDepartment of Physiology and Biophysics, Rush University Medical Center, Chicago, Illinois.ORCID 0000-0003-0387-3686
Lothar A BlatterDepartment of Physiology and Biophysics, Rush University Medical Center, Chicago, Illinois.ORCID 0000-0003-3409-8678
Rush University Medical Center · US

Funding

Limiting Pathological Calcium Induced Calcium Release in HeartR01HL057832 · NHLBI · RUSH UNIVERSITY MEDICAL CENTER · PI FILL, MICHAEL, GILLESPIE, DIRK · 1997 to 2024
$9.0M
Pathophysiological Regulation of Atrial Alternans and Atrial FibrillationR01HL132871 · NHLBI · RUSH UNIVERSITY MEDICAL CENTER · PI BANACH, KATHRIN, BLATTER, LOTHAR A · 2017 to 2020
$1.6M
Pathophysiological Regulation of Atrial Myocyte Excitation-Contraction Coupling and Calcium SignalingR01HL134781 · NHLBI · RUSH UNIVERSITY MEDICAL CENTER · PI BLATTER, LOTHAR A · 2017 to 2020
$1.5M
HHS | NIH | National Heart, Lung, and Blood Institute (NHBLI) HL-057832HHS | NIH | National Heart, Lung, and Blood Institute (NHBLI) HL-132871HHS | NIH | National Heart, Lung, and Blood Institute (NHBLI) HL-134781NHLBI NIH HHS R01 HL134781
6 · The paper itself

Abstract

Cardiac alternans, defined as beat-to-beat alternations in action potential duration, cytosolic Ca transient (CaT) amplitude, and cardiac contraction is associated with atrial fibrillation (AF) and sudden cardiac death. At the cellular level, cardiac alternans is linked to abnormal intracellular calcium handling during excitation-contraction coupling. We investigated how pharmacological activation or inhibition of cytosolic Ca sequestration via mitochondrial Ca uptake and mitochondrial Ca retention affects the occurrence of pacing-induced CaT alternans in isolated rabbit atrial myocytes. Cytosolic CaTs were recorded using Fluo-4 fluorescence microscopy. Alternans was quantified as the alternans ratio (AR = 1 - CaT

Indexed as

Action PotentialsAnimalsAnti-Arrhythmia AgentsAtrial FibrillationCalcium ChannelsCalcium SignalingHeart AtriaHeart RateKineticsMaleMitochondria, HeartMyocytes, CardiacRabbitsSpermineAnti-Arrhythmia AgentsCalcium Channelsmitochondrial calcium uniporterSpermineatrial fibrillationCa alternansmitochondrial calcium uniporter complexmitochondrial calcium uptake

Identifiers

PMID32857593
PMCPMC7654655
OpenAlexW3082792804

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.