Evidence map›Paper›PMID 12824452›Full record

ArticleThe Journal of physiology2003

Calmodulin kinase modulates Ca2+ release in mouse skeletal muscle.

Pasi Tavi, David G Allen, Perttu Niemelä, Olli Vuolteenaho, Matti Weckström, Håkan Westerblad

Abstract 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 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
0.3field-weighted citation impact, top 44% 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

17 citing papers in PubMed, 35 citations in OpenAlex.

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  9. Calcium/calmodulin kinase II-dependent acetylcholine receptor cycling at the mammalian neuromuscular junction in vivo.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2010
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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

6 authors at 3 institutions in 3 countries.

Pasi TaviDepartment of Physiology and Pharmacology, Karolinska Institutet, 171 77 Stockholm, Sweden.
David G Allen
Perttu Niemelä
Olli Vuolteenaho
Matti Weckström
Håkan Westerblad
University of Oulu · FIKarolinska Institutet · SEUniversity of Sydney · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Activation of the contractile machinery in skeletal muscle is initiated by the action-potential-induced release of Ca2+ from the sarcoplasmic reticulum (SR). Several proteins involved in SR Ca2+ release are affected by calmodulin kinase II (CaMKII)-induced phosphorylation in vitro, but the effect in the intact cell remains uncertain and is the focus of the present study. CaMKII inhibitory peptide or inactive control peptide was injected into single isolated fast-twitch fibres of mouse flexor digitorum brevis muscles, and the effect on free myoplasmic [Ca2+] ([Ca2+]i) and force during different patterns of stimulation was measured. Injection of the inactive control peptide had no effect on any of the parameters measured. Conversely, injection of CaMKII inhibitory peptide decreased tetanic [Ca2+]i by ~25 %, but had no significant effect on the rate of SR Ca2+ uptake or the force-[Ca2+]i relationship. Repeated tetanic stimulation resulted in increased tetanic [Ca2+]i, and this increase was smaller after CaMKII inhibition. In conclusion, CaMKII-induced phosphorylation facilitates SR Ca2+ release in the basal state and during repeated contractions, providing a positive feedback between [Ca2+]i and SR Ca2+ release.

Indexed as

AnimalsCalciumCalcium-Calmodulin-Dependent Protein KinasesCalcium-Calmodulin-Dependent Protein Kinase Type 2Calcium-Transporting ATPasesCarrier ProteinsElectric StimulationEnzyme ActivationIntracellular MembranesIntracellular Signaling Peptides and ProteinsMaleMiceMice, Inbred StrainsMuscle ContractionMuscle, SkeletalOsmolar ConcentrationCalciumCalcium-Calmodulin-Dependent Protein KinasesCalcium-Calmodulin-Dependent Protein Kinase Type 2Calcium-Transporting ATPasesCAMK2N2 protein, humanCarrier ProteinsIntracellular Signaling Peptides and Proteins

Identifiers

PMID12824452
PMCPMC2343155
OpenAlexW1995754902

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.