Evidence map›Paper›PMID 27872269›Full record

ArticleSchizophrenia bulletin2017

Behavioral Biomarkers of Schizophrenia in High Drinker Rats: A Potential Endophenotype of Compulsive Neuropsychiatric Disorders.

Silvia V Navarro, Roberto Alvarez, M Teresa Colomina, Fernando Sanchez-Santed, Pilar Flores, Margarita Moreno

Abstract read
In one paragraph

Article in Schizophrenia bulletin, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

12 citing papers in PubMed, 1 synthesis or guideline pooled it.

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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.

Silvia V NavarroDepartment of Psychology, University of Almería, Campus de Excelencia Internacional Agroalimentario (CEIA3), Almería, Spain.
Roberto AlvarezDepartment of Psychology, University of Almería, Campus de Excelencia Internacional Agroalimentario (CEIA3), Almería, Spain.
M Teresa ColominaDepartment of Psychology and Research Center for Behavior Assessment (CRAMC), Universitat Rovira i Virgili, Tarragona, Spain.
Fernando Sanchez-SantedDepartment of Psychology, University of Almería, Campus de Excelencia Internacional Agroalimentario (CEIA3), Almería, Spain.
Pilar FloresDepartment of Psychology, University of Almería, Campus de Excelencia Internacional Agroalimentario (CEIA3), Almería, Spain.
Margarita MorenoDepartment of Psychology, University of Almería, Campus de Excelencia Internacional Agroalimentario (CEIA3), Almería, Spain.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Psychogenic polydipsia, which is compulsive, non-regulatory fluid consumption, is present in 6%-20% of chronic psychiatric patients and frequently associated with the schizophrenia diagnosis. In the present study, we investigated the relation between schizophrenia-like symptoms and biomarkers with a compulsive drinking behavior phenotype in rats. Rats that were selected for low drinking vs high drinking behavior following schedule-induced polydipsia (SIP) were assessed in a latent inhibition (LI) paradigm using tone and electrical foot shock and in a spatial reversal learning task to evaluate behavioral inflexibility. We also analyzed the myelin basic protein in different brain areas of high drinker (HD) and low drinker (LD) rats. The HD rats, which were characterized by a compulsive drinking behavior on SIP, had a reduced level of LI effect and increased behavioral inflexibility in the spatial reversal learning task in comparison to the LD group. Moreover, HD rats showed less myelination in the center of the corpus callosum, striatum, and amygdala in comparison to LD rats. These findings strengthen the validity of HD rats that were selected by SIP as a possible phenotype of compulsive neuropsychiatric disorders, as evidenced by the existence of behaviors and biological markers that are related to schizophrenia and obsessive-compulsive disorder, including a reduced LI effect, behavioral inflexibility and reduced brain myelination. Future studies could contribute to the elucidation of the mechanisms underlying the compulsive phenotype of HD rats and its relation to vulnerability to schizophrenia.

Indexed as

EndophenotypesInhibition, PsychologicalAmygdalaAnimalsBehavior, AnimalBiomarkersCompulsive BehaviorCorpus CallosumCorpus StriatumDisease Models, AnimalDrinking BehaviorRatsRats, WistarReversal LearningSchizophreniaBiomarkerscompulsivitylatent inhibitionmyelinationreversal learningschedule-induced polydipsiaschizophrenia

Identifiers

PMID27872269
PMCPMC5472118

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

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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.