Evidence map›Paper›PMID 26645626›Full record

ArticleTranslational psychiatry2015

Convergent evidences from human and animal studies implicate angiotensin I-converting enzyme activity in cognitive performance in schizophrenia.

A Gadelha, A M Vendramini, C M Yonamine, M Nering, A Berberian, M A Suiama, V Oliveira, M T Lima-Landman, G Breen, R A Bressan and 2 more

Open access · goldAbstract read
In one paragraph

Article in Translational psychiatry, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
1.9field-weighted citation impact, top 13% 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

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 43 citations in OpenAlex.

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  17. Within the Brain: The Renin Angiotensin System.International journal of molecular sciences · 2018
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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

12 authors at 2 institutions in 2 countries.

A GadelhaIntegrated Laboratory of Clinical Neurosciences and Schizophrenia Program, Departamento de Psiquiatria, Universidade Federal de São Paulo, São Paulo, Brazil.
A M VendraminiDepartamento de Farmacologia, Universidade Federal de São Paulo, São Paulo, Brazil.
C M YonamineIntegrated Laboratory of Clinical Neurosciences and Schizophrenia Program, Departamento de Psiquiatria, Universidade Federal de São Paulo, São Paulo, Brazil.
M NeringDepartamento de Farmacologia, Universidade Federal de São Paulo, São Paulo, Brazil.
A BerberianIntegrated Laboratory of Clinical Neurosciences and Schizophrenia Program, Departamento de Psiquiatria, Universidade Federal de São Paulo, São Paulo, Brazil.
M A SuiamaDepartamento de Farmacologia, Universidade Federal de São Paulo, São Paulo, Brazil.
V OliveiraDepartamento de Biofísica, Universidade Federal de São Paulo, São Paulo, Brazil.
M T Lima-LandmanDepartamento de Farmacologia, Universidade Federal de São Paulo, São Paulo, Brazil.
G BreenMedical Research Council Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, King's College London, London, UK.
R A BressanIntegrated Laboratory of Clinical Neurosciences and Schizophrenia Program, Departamento de Psiquiatria, Universidade Federal de São Paulo, São Paulo, Brazil.
V AbílioIntegrated Laboratory of Clinical Neurosciences and Schizophrenia Program, Departamento de Psiquiatria, Universidade Federal de São Paulo, São Paulo, Brazil.
M A F HayashiIntegrated Laboratory of Clinical Neurosciences and Schizophrenia Program, Departamento de Psiquiatria, Universidade Federal de São Paulo, São Paulo, Brazil.
Universidade Federal de São Paulo · BRKing's College London · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In schizophrenia (SCZ), higher angiotensin I-converting enzyme (ACE) levels have been reported in patient's blood and cerebrospinal fluid (CSF). Hereby, we propose to explore whether the ACE activity levels are associated to cognitive performance in SCZ. Seventy-two patients with SCZ or schizoaffective disorder diagnosis, and 69 healthy controls (HCs) underwent a cognitive battery with parallel collection of peripheral blood samples to measure ACE activity. Significant higher ACE activity levels were confirmed in the plasma of SCZ patients compared with HCs (Student's t=-5.216; P<0.001). ACE activity significantly correlated to Hopkins delayed recall measures (r=-0.247; P=0.004) and Hopkins total (r=-0.214; P=0.012). Subjects grouped as high ACE activity (above average) had worse performance compared with low ACE activity level group for Hopkins delayed recall measure, even after correction for clinical condition, age, gender and years of education (P=0.029). The adjusted R squared for this final model was 0.343. This result was evident only comparing extreme groups for ACE activity, when splitting the sample in three groups with similar number of subjects. To clarify this finding, we performed an evaluation of the cognitive performance of transgenic mice with three copies of ACE gene in novel object recognition (NOR) test, which showed that such animals presented impairment in NOR (P<0.05) compared with two copies of wild-type animals. The results observed in SCZ patients and animal model suggest both the association of ACE to cognitive deficits in SCZ. This finding may support the evaluation of novel treatment protocols and/or of innovative drugs for specific intervention of cognitive deficits in SCZ envisioning concomitant ACE activity and behavior evaluations.

Indexed as

AdolescentAdultAgedAnimalsCognition DisordersDisease Models, AnimalFemaleHumansMaleMiceMice, Inbred C57BLMiddle AgedPeptidyl-Dipeptidase ASchizophreniaYoung AdultPeptidyl-Dipeptidase A

Identifiers

PMID26645626
PMCPMC5068582
OpenAlexW2195319639

What OpenQuestion holds

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LicenceCC BY
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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.