Evidence map›Paper›PMID 27193331›Full record

SynthesisScientific reports2016

A significant causal association between C-reactive protein levels and schizophrenia.

Masatoshi Inoshita, Shusuke Numata, Atsushi Tajima, Makoto Kinoshita, Hidehiro Umehara, Masahito Nakataki, Masashi Ikeda, Souichiro Maruyama, Hidenaga Yamamori, Tetsufumi Kanazawa and 6 more

RetractedOpen access · goldAbstract readMeta-AnalysisRetracted Publication
In one paragraph

Synthesis in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It has been retracted, and should not be counted. Cited by 21 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 3 pooled it
2.8field-weighted citation impact, top 10% 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

21 citing papers in PubMed, 3 syntheses or guidelines pooled it, 44 citations in OpenAlex.

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  12. Serum Levels of High Sensitivity C-reactive Protein in Drug-naÏve First-episode Psychosis and Acute Exacerbation of Schizophrenia.Clinical psychopharmacology and neuroscience : the official scientific journal of the Korean College of Neuropsychopharmacology · 2019
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

16 authors at 6 institutions in 1 country.

Masatoshi InoshitaDepartment of Psychiatry, Institute of Biomedical Science, Tokushima University Graduate School, Tokushima, Japan.
Shusuke NumataDepartment of Psychiatry, Institute of Biomedical Science, Tokushima University Graduate School, Tokushima, Japan.
Atsushi TajimaDepartment of Human Genetics, Institute of Biomedical Science, Tokushima University Graduate School, Tokushima, Japan.
Makoto KinoshitaDepartment of Psychiatry, Institute of Biomedical Science, Tokushima University Graduate School, Tokushima, Japan.
Hidehiro UmeharaDepartment of Psychiatry, Institute of Biomedical Science, Tokushima University Graduate School, Tokushima, Japan.
Masahito NakatakiDepartment of Psychiatry, Institute of Biomedical Science, Tokushima University Graduate School, Tokushima, Japan.
Masashi IkedaDepartment of Psychiatry, School of Medicine, Fujita Health University, Toyoake, Aichi, Japan.
Souichiro MaruyamaDepartment of Neuropsychiatry, Osaka Medical College, Takatsuki, Japan.
Hidenaga YamamoriDepartment of Psychiatry, Osaka University Graduate school of Medicine, Suita, Osaka, Japan.
Tetsufumi KanazawaDepartment of Neuropsychiatry, Osaka Medical College, Takatsuki, Japan.
Shinji ShimoderaDepartment of Neuropsychiatry, Kochi Medical School, Kochi University, Kochi, Japan.
Ryota HashimotoDepartment of Psychiatry, Osaka University Graduate school of Medicine, Suita, Osaka, Japan.
Issei ImotoDepartment of Human Genetics, Institute of Biomedical Science, Tokushima University Graduate School, Tokushima, Japan.
Hiroshi YonedaDepartment of Neuropsychiatry, Osaka Medical College, Takatsuki, Japan.
Nakao IwataDepartment of Psychiatry, School of Medicine, Fujita Health University, Toyoake, Aichi, Japan.
Tetsuro OhmoriDepartment of Psychiatry, Institute of Biomedical Science, Tokushima University Graduate School, Tokushima, Japan.
Tokushima University · JPOsaka Medical and Pharmaceutical University · JPFujita Health University · JPOsaka University · JPKanazawa University · JPKōchi University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Many observational studies have shown elevated blood CRP levels in schizophrenia compared with controls, and one population-based prospective study has reported that elevated plasma CRP levels were associated with late- and very-late-onset schizophrenia. Furthermore, several clinical studies have reported the efficacy of anti-inflammatory drugs on the symptoms in patients with schizophrenia. However, whether elevated CRP levels are causally related to schizophrenia is not still established because of confounding factors and reverse causality. In the present study, we demonstrated that serum CRP levels were significantly higher in patients with schizophrenia than in the controls by conducting a case-control study and a meta-analysis of case-control studies between schizophrenia and serum CRP levels. Furthermore, we provided evidence for a causal association between elevated CRP levels and increased schizophrenia risk by conducting a Mendelian randomization analysis. Our findings suggest that elevated CRP itself may be a causal risk factor for schizophrenia.

Indexed as

AdultAgedCase-Control StudiesC-Reactive ProteinFemaleHumansMaleMiddle AgedProspective StudiesSchizophreniaSerumC-Reactive Protein

Identifiers

PMID27193331
PMCPMC4872134
OpenAlexW2402616160

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.