Evidence map›Paper›PMID 12562922›Full record

ArticleThe Journal of physiology2003

Metabolic regulation of Ca2+ release in permeabilized mammalian skeletal muscle fibres.

Elena V Isaeva, Natalia Shirokova

Open access · greenAbstract read
In one paragraph

Article in The Journal of physiology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
1.7field-weighted citation impact, top 17% 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

30 citing papers in PubMed, 53 citations in OpenAlex.

  1. Article
  2. Review
  3. Improper Remodeling of Organelles Deputed to CaInternational journal of molecular sciences · 2021
    Review
  4. Article
  5. Article
  6. Review
  7. Mitochondrial calcium uptake.Proceedings of the National Academy of Sciences of the United States of America · 2013
    Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Mitochondria in cardiomyocyte Ca2+ signaling.The international journal of biochemistry & cell biology · 2009
    Review
  15. Article
  16. Sarcoplasmic reticulum-mitochondrial through-space coupling in skeletal muscle.Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme · 2009
    Article
  17. Review
  18. Article
  19. Article
  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

2 authors at 1 institution in 1 country.

Elena V IsaevaDepartment of Pharmacology and Physiology, University of Medicine and Dentistry of New Jersey, New Jersey Medical School, 185 South Orange Avenue, Newark, NJ 07103, USA.
Natalia Shirokova
Rutgers, The State University of New Jersey · US

Funding

RELEASE CHANNEL ISOFORMS AND LOCAL CALCIUM SIGNALINGR01AR045690 · NIAMS · UNIV OF MED/DENT OF NJ-NJ MEDICAL SCHOOL · PI SHIROKOVA, NATALIA V · 1999 to 2003
$755k
NIAMS NIH HHS R01 AR045690NIAMS NIH HHS R01-AR45690
6 · The paper itself

Abstract

In the present study, the link between cellular metabolism and Ca2+ signalling was investigated in permeabilized mammalian skeletal muscle. Spontaneous events of Ca2+ release from the sarcoplasmic reticulum were detected with fluo-3 and confocal scanning microscopy. Mitochondrial functions were monitored by measuring local changes in mitochondrial membrane potential (with the potential-sensitive dye tetramethylrhodamine ethyl ester) and in mitochondrial [Ca2+] (with the Ca2+ indicator mag-rhod-2). Digital fluorescence imaging microscopy was used to quantify changes in the mitochondrial autofluorescence of NAD(P)H. When fibres were immersed in a solution without mitochondrial substrates, Ca2+ release events were readily observed. The addition of L-glutamate or pyruvate reversibly decreased the frequency of Ca2+ release events and increased mitochondrial membrane potential and NAD(P)H production. Application of various mitochondrial inhibitors led to the loss of mitochondrial [Ca2+] and promoted spontaneous Ca2+ release from the sarcoplasmic reticulum. In many cases, the increase in the frequency of Ca2+ release events was not accompanied by a rise in global [Ca2+]i. Our results suggest that mitochondria exert a negative control over Ca2+ signalling in skeletal muscle by buffering Ca2+ near Ca2+ release channels.

Indexed as

AnimalsAntimycin ACalciumCarbonyl Cyanide p-TrifluoromethoxyphenylhydrazoneDrug CombinationsFemaleMitochondria, MuscleMuscle Fibers, SkeletalMuscle, SkeletalOligomycinsPermeabilityRatsRats, Sprague-DawleyRuthenium CompoundsSignal TransductionAntimycin ACalciumCarbonyl Cyanide p-TrifluoromethoxyphenylhydrazoneDrug CombinationsOligomycinsRu 360Ruthenium Compounds

Identifiers

PMID12562922
PMCPMC2342647
OpenAlexW1995863161

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.