Evidence map›Paper›PMID 17245470›Full record

ArticleJournal of psychiatry & neuroscience : JPN2007

Effects of valproate on serotonin-induced intracellular calcium mobilization in human platelets.

Tatsuyuki Akimoto, Ichiro Kusumi, Katsuji Suzuki, Takuya Masui, Tsukasa Koyama

Open access · greenAbstract read
In one paragraph

Article in Journal of psychiatry & neuroscience : JPN, 2007. 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
0.9field-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

4 citing papers in PubMed, 5 citations in OpenAlex.

  1. Valproic Acid Stimulates Release of CaInternational journal of molecular sciences · 2026
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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

5 authors at 1 institution in 1 country.

Tatsuyuki AkimotoDepartment of Psychiatry, Hokkaido University Graduate School of Medicine, Kita-ku, Sapporo, Japan.
Ichiro Kusumi
Katsuji Suzuki
Takuya Masui
Tsukasa Koyama
Hokkaido University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveValproate (VPA) is effectively used in the treatment of bipolar disorder, although the mechanism of action is unclear. In patients with bipolar disorder, 5-hydroxytryptamine (5-HT)-induced intraplatelet calcium (Ca) mobilization has been shown to be enhanced.

methodsWe examined the effect of VPA on 5-HT-induced Ca response in the platelets of normal subjects, in the presence of a calmodulin antagonist W-7 (N-[6-aminohexyl]-5-chloro-1-naphthalenesulfonamide), a protein kinase C (PKC) activator phorbol 12-myristate 13-acetate (PMA) or PKC inhibitors staurosporine and bisindolylmaleimide II.

resultsVPA inhibited the 5-HT-induced Ca response in a concentration-dependent manner. For calmodulin pathways, W-7 enhanced the 5-HT-stimulated Ca response, which was not affected by VPA. For PKC pathways, PMA reduced the Ca response, although both PKC inhibitors had no effect. PMA, staurosporine or bisindolylmaleimide II reversed the inhibitory effect of VPA on the Ca response, while W-7 did not modify it.

conclusionThese findings suggest the possibility that the mechanism of action of VPA may be partly related to PKC signalling.

Indexed as

AdultAntimanic AgentsBlood PlateletsCalciumCalmodulinHumansIn Vitro TechniquesMalePilot ProjectsProtein Kinase CSerotoninValproic AcidAntimanic AgentsCalciumCalmodulinProtein Kinase CSerotoninValproic Acid

Identifiers

PMID17245470
PMCPMC1764542
OpenAlexW2185461530

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.