Evidence for an Immune Role on Cognition in Schizophrenia: A Systematic Review

ISSN: 1875-6190 (Online)
ISSN: 1570-159X (Print)

Volume 15, 8 Issues, 2017

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Current Neuropharmacology

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University College London
Institute of Ophthalmology
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Evidence for an Immune Role on Cognition in Schizophrenia: A Systematic Review

Current Neuropharmacology, 12(3): 273-280.

Author(s): Rafael Ribeiro-Santos, Antonio Lucio Teixeira and Joao Vinicius Salgado.

Affiliation: Neurosciences Program, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil.


Objective: Recent evidence has associated immune and inflammatory changes to cognitive performance in many diseases, including schizophrenia. Since this is a new research field where concepts are not yet solid and new questions and hypothesis are still arising, the present study aimed at summarizing the available clinical data associating schizophrenia, cognition and inflammation/immune function.

Methods: A systematic review of the literature was made by searching the following terms in Medline: “schizophrenia or psychosis or psychotic” AND “inflamm* or immun* or cytokine or IL-* or TNF-* or kynureni* or KYNA”, AND “cognit* or attention or memory or executive function”.

Results: Seventy five papers were identified using the selected terms, and seven papers were included in the review. Papers excluded focused mainly on basic research or other neuropsychiatric disorders.

Conclusions: Recent findings link inflammatory markers to cognition in schizophrenia, suggesting that inflammation is associated with worst cognitive performance. Microglial activation, monoaminergic imbalance, brain abnormalities and the kynurenine pathway are possible mechanisms underlying cognitive impairment in schizophrenia. Clinical trials with addition of immunomodulatory drugs have shown promising results, opening new windows to tackle cognition in schizophrenia.


Cognition, immunology, inflammation, schizophrenia.

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Article Details

Volume: 12
Issue Number: 3
First Page: 273
Last Page: 280
Page Count: 8
DOI: 10.2174/1570159X1203140511160832
Price: $58

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