Evidence map›Paper›PMID 22697296›Full record

ArticleJournal of cellular and molecular medicine2012

Fluoxetine induces vasodilatation of cerebral arterioles by co-modulating NO/muscarinic signalling.

Keren Ofek, Karl Schoknecht, Naomi Melamed-Book, Uwe Heinemann, Alon Friedman, Hermona Soreq

Open access · goldAbstract read
In one paragraph

Article in Journal of cellular and molecular medicine, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
1.5field-weighted citation impact, top 19% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 36 citations in OpenAlex.

  1. Pooled it
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  14. Fluoxetine and Raynaud's phenomenon: friend or foe?British journal of clinical pharmacology · 2017
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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 2 countries.

Keren OfekEdmond and Lily Safra Center for Brain Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel.
Karl Schoknecht
Naomi Melamed-Book
Uwe Heinemann
Alon Friedman
Hermona Soreq
Hebrew University of Jerusalem · ILCharité - Universitätsmedizin Berlin · DEBen-Gurion University of the Negev · IL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Ischaemic stroke patients treated with Selective Serotonin Reuptake Inhibitors (SSRI) show improved motor, cognitive and executive functions, but the underlying mechanism(s) are incompletely understood. Here, we report that cerebral arterioles in the rat brain superfused with therapeutically effective doses of the SSRI fluoxetine showed consistent, dose-dependent vasodilatation (by 1.2 to 1.6-fold), suppressible by muscarinic and nitric oxide synthase (NOS) antagonists [atropine, NG-nitro-l-arginine methyl ester (l-NAME)] but resistant to nicotinic and serotoninergic antagonists (mecamylamine, methylsergide). Fluoxetine administered 10-30 min. following experimental vascular photo-thrombosis increased arterial diameter (1.3-1.6), inducing partial, but lasting reperfusion of the ischaemic brain. In brain endothelial b.End.3 cells, fluoxetine induced rapid muscarinic receptor-dependent increases in intracellular [Ca(2+) ] and promoted albumin- and eNOS-dependent nitric oxide (NO) production and HSP90 interaction. In vitro, fluoxetine suppressed recombinant human acetylcholinesterase (rhAChE) activity only in the presence of albumin. That fluoxetine induces vasodilatation of cerebral arterioles suggests co-promotion of endothelial muscarinic and nitric oxide signalling, facilitated by albumin-dependent inhibition of serum AChE.

Indexed as

AcetylcholinesteraseAnimalsArteriolesAtropineCalciumCells, CulturedCerebral CortexDisease Models, AnimalDose-Response Relationship, DrugFluoxetineHSP90 Heat-Shock ProteinsMaleMecamylamineMethysergideMuscarinic AntagonistsNG-Nitroarginine Methyl EsterAcetylcholinesteraseAtropineCalciumFluoxetineHSP90 Heat-Shock ProteinsMecamylamineMethysergideMuscarinic AntagonistsNG-Nitroarginine Methyl EsterNitric OxideNitric Oxide Synthase Type IIINos3 protein, ratReceptors, MuscarinicSelective Serotonin Reuptake InhibitorsSerotonin

Identifiers

PMID22697296
PMCPMC4118242
OpenAlexW2015975693

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.