Evidence map›Paper›PMID 8974043›Full record

ReviewMolecular and cellular biochemistry

Regulation of the slow Ca++ channels of myocardial cells.

N Sperelakis, Y Katsube, H Yokoshiki, H Sada, K Sumii

Abstract readReview
PubMed Publisher
In one paragraph

Review in Molecular and cellular biochemistry. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.7field-weighted citation impact, top 31% 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

5 citing papers in PubMed, 20 citations in OpenAlex.

  1. Article
  2. Article
  3. Ryanodine and dihydropyridine receptor binding in ventricular cardiac muscle of fish with different temperature preferences.Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2003
    Article
  4. Review
  5. 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

5 authors at 3 institutions in 2 countries.

N SperelakisUniversity of Cincinnati, OH 45267-0576, USA.
Y Katsube
H Yokoshiki
H Sada
K Sumii
University of Cincinnati · USHiroshima University · JPYamaguchi University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Contraction of the heart is regulated by a number of mechanisms, such as neurotransmitters, hormones, autacoids, pH, intracellular ATP, and Ca++ ions. These actions are mediated, at least in part, by actions on the sarcolemmal slow (L-type) Ca++ channels, exerted directly or indirectly. The major mechanisms for the regulation of the slow Ca++ channels of myocardial cells includes the following. cAMP/PK-A phosphorylation stimulates the slow Ca++ channel activity, whereas cGMP/PK-G phosphorylation inhibits. DAG/PK-C phosphorylation and tyrosine kinase phosphorylation are suggested to stimulate the slow Ca++ channel activity. Intracellular application of Gs alpha protein increases the slow Ca++ currents (ICa(L)). Lowering of intracellular ATP inhibits ICa(L). Acidosis and increase in [Ca]i inhibits ICa(L). A number of changes in the Ca++ channels also occur during development and aging. Thus, it appears that the slow Ca++ channel is a complex structure, including perhaps several associated regulatory proteins, which can be regulated by a number of extrinsic and intrinsic factors, and thereby control can be exercised over the force of contraction of the heart.

Indexed as

Myocardial ContractionAnimalsCalciumCalcium-Calmodulin-Dependent Protein KinasesCalcium ChannelsChick EmbryoChickensCyclic GMPGTP-Binding ProteinsHeartHydrogen-Ion ConcentrationModels, BiologicalPhospholipidsPhosphorylationProtein-Tyrosine KinasesRatsCalciumCalcium-Calmodulin-Dependent Protein KinasesCalcium ChannelsCyclic GMPGTP-Binding ProteinsPhospholipidsProtein-Tyrosine KinasesTaurine

Identifiers

PMID8974043
OpenAlexW2032912072

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.