Evidence map›Paper›PMID 1655514›Full record

ArticleExperientia1991

Calyculin A increases voltage-dependent inward current in smooth muscle cells isolated from guinea pig taenia coli.

T Usuki, K Obara, T Someya, H Ozaki, H Karaki, N Fusetani, H Yabu

Abstract read
PubMed Publisher
In one paragraph

Article in Experientia, 1991. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.8field-weighted citation impact, top 29% 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

4 citing papers in PubMed, 16 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. 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

7 authors at 3 institutions in 1 country.

T UsukiDepartment of Physiology, Sapporo Medical College, Japan.
K Obara
T Someya
H Ozaki
H Karaki
N Fusetani
H Yabu
Sapporo Medical University · JPThe University of Tokyo · JPTokyo University of Agriculture · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The effects of a potent phosphatase inhibitor, calyculin A (CL-A), on inward currents in guinea pig taenia coli smooth muscle cells were examined. CL-A increased the inward current, and this effect of CL-A was inhibited by a protein kinase C inhibitor, H-7, and by nifedipine. Phorbol 12,13-dibutyrate, an activator of protein kinase C, also increased the inward current and this effect was antagonized by H-7. These results suggest that in guinea pig taenia coli smooth muscle cells CL-A may facilitate the opening of the L-type Ca2+ channels through the protein kinase C-dependent phosphorylation system.

Indexed as

ColonAnimalsBariumCalcium ChannelsCell SeparationGuinea PigsMarine ToxinsMembrane PotentialsMuscle, SmoothOxazolesProtein Kinase CBariumCalcium Channelscalyculin AMarine ToxinsOxazolesProtein Kinase C

Identifiers

PMID1655514
OpenAlexW1991828173

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.