Evidence map›Paper›PMID 15834538›Full record

ArticlePsychopharmacology2005

5-HT2A/2C receptor signaling via phospholipase A2 and arachidonic acid is attenuated in mice lacking the serotonin reuptake transporter.

Ying Qu, Nelly Villacreses, Dennis L Murphy, Stanley I Rapoport

Abstract read
PubMed Publisher
In one paragraph

Article in Psychopharmacology, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
2.1field-weighted citation impact, top 14% 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

45 citing papers in PubMed, 85 citations in OpenAlex.

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  14. Psychedelics.Pharmacological reviews · 2016
    Review
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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

4 authors at 3 institutions in 1 country.

Ying QuBrain Physiology and Metabolism Section, National Institute on Aging, National Institutes of Health, Building 9, Room 1S128, Bethesda, MD, 20892, USA. yqu1@prdus.jnj.com
Nelly Villacreses
Dennis L Murphy
Stanley I Rapoport
National Institute on Aging · USNational Institute of Mental Health · USNational Institutes of Health · US

Funding

Genetic Mouse Models for the Study of Serotonin Function and BehaviorZIAMH000332 · NIMH · NATIONAL INSTITUTE OF MENTAL HEALTH · PI MURPHY, DENNIS L · 2009 to 2014
$4.9M
Imaging Brain Signal Transduction via Arachidonic and Docosahexaenoic AcidsZIAAG000134 · NIA · NATIONAL INSTITUTE ON AGING · PI RAPOPORT, STANLEY I. · 2009 to 2015
$3.3M
Genetic Animal Models for the Study of Serotonin Function and BehaviorZ01MH000332 · NIMH · NATIONAL INSTITUTE OF MENTAL HEALTH · PI MURPHY, DENNIS L · 1985 to 2008
$2.7M
THE NERVOUS SYSTEM IN RELATION TO FUNCTION, AGING, AND DISEASEZ01AG000134 · NIA · NATIONAL INSTITUTE ON AGING · PI RAPOPORT, STANLEY I. · 1985 to 2008
$1.2M
6 · The paper itself

Abstract

subjectsThe serotonin reuptake transporter (SERT) helps to regulate brain serotonergic transmission and is the target of some antidepressants. To further understand SERT function, we measured a marker of regional brain phospholipase A2 (PLA2) activation in SERT knockout mice (SERT-/-) and their littermate controls (SERT+/+).

methodsFollowing administration of 1.5 mg/kg s.c. (+/-)-2,5-dimethoxy-4-iodophenyl-2-aminopropane (DOI), a 5-HT(2A/2C) receptor agonist, to unanesthetized mice injected intravenously with radiolabeled arachidonic acid (AA), PLA2 activation, represented as the regional incorporation coefficient k* of AA, was determined with quantitative autoradiography in each of 71 brain regions.

resultsIn SERT+/+ mice, DOI significantly increased k* in 27 regions known to have 5-HT(2A/2C) receptors, including the frontal, motor, somatosensory, pyriform and cingulate cortex, white matter, nucleus accumbens, caudate putamen, septum, CA1 of hippocampus, thalamus, and hypothalamus. In contrast, DOI did not increase k* significantly in any brain region of SERT-/- mice. Head twitches following DOI, which also were measured, were robust in SERT+/+ mice but were markedly attenuated in SERT-/- mice.

conclusionsThese results show that a lifelong elevation of the synaptic 5-HT concentration in SERT-/- mice leads to downregulation of 5-HT(2A/2C) receptor-mediated PLA2 signaling via AA and of head twitches, in response to DOI.

Indexed as

AmphetaminesAnimalsArachidonic AcidBrainMaleMiceMice, Inbred C57BLMice, KnockoutPhospholipases APhospholipases A2Radionuclide ImagingReceptor, Serotonin, 5-HT2AReceptor, Serotonin, 5-HT2CSerotonin 5-HT2 Receptor AgonistsSerotonin Plasma Membrane Transport Proteins4-iodo-2,5-dimethoxyphenylisopropylamineAmphetaminesArachidonic AcidPhospholipases APhospholipases A2Receptor, Serotonin, 5-HT2AReceptor, Serotonin, 5-HT2CSerotonin 5-HT2 Receptor AgonistsSerotonin Plasma Membrane Transport ProteinsSlc6a4 protein, mouse

Identifiers

PMID15834538
OpenAlexW1980673850

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.