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Schizophr Bull. 2016 Sep;42(5):1290-302. doi: 10.1093/schbul/sbw029. Epub 2016 May 3.

Chronic Peripheral Inflammation is Associated With Cognitive Impairment in Schizophrenia: Results From the Multicentric FACE-SZ Dataset.

Author information

1
Fondation FondaMental, RTRS santé mentale, Créteil, France; INSERM U955, Translational Psychiatry Team, Créteil, France, Paris Est University, DHU Pe-PSY, Pôle de Psychiatrie des Hôpitaux Universitaires H Mondor, Créteil, France;
2
Fondation FondaMental, RTRS santé mentale, Créteil, France; Pôle psychiatrie universitaire, CHU Sainte-Marguerite, F-13274 Marseille cedex 09, France;
3
Fondation FondaMental, RTRS santé mentale, Créteil, France; CMP B, CHU, EA 7280 Faculté de Médecine, Université d'Auvergne, BP 69 63003 Clermont-Ferrand Cedex 1, France;
4
Fondation FondaMental, RTRS santé mentale, Créteil, France; Sorbonne Universités, UPMC Univ Paris 06, UMR_S 1136, Institut Pierre Louis d'Epidémiologie et de Santé Publique, F-75013, Paris, France, INSERM, UMR_S 1136, Institut Pierre Louis d'Epidémiologie et de Santé Publique, F-75013, Paris, France;
5
Fondation FondaMental, RTRS santé mentale, Créteil, France; Hôpitaux Universitaires de Strasbourg, Université de Strasbourg, INSERM U1114, Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France;
6
Fondation FondaMental, RTRS santé mentale, Créteil, France; Centre Hospitalier Charles Perrens, Université de Bordeaux, F-33076 Bordeaux, France; Inserm, Neurocentre Magendie, Physiopathologie de la Plasticité Neuronale, U862, F-33000 Bordeaux, France;
7
Fondation FondaMental, RTRS santé mentale, Créteil, France; Service Universitaire de Psychiatrie Adulte, Hôpital la Colombière, CHRU Montpellier, Université Montpellier 1, Inserm 1061, Montpellier, France;
8
Fondation FondaMental, RTRS santé mentale, Créteil, France; Université Claude Bernard Lyon 1/Centre Hospitalier Le Vinatier Pole Est BP 300 39- 95 bd Pinel-69678 BRON Cedex, France;
9
Fondation FondaMental, RTRS santé mentale, Créteil, France; AP-HP, Department of Psychiatry, Louis Mourier Hospital, Colombes, Inserm U894, Université Paris Diderot, Sorbonne Paris Cité, Faculté de médecine, France;
10
Fondation FondaMental, RTRS santé mentale, Créteil, France; Centre Référent de Réhabilitation Psychosociale, CH Alpes Isère, Grenoble, France;
11
Fondation FondaMental, RTRS santé mentale, Créteil, France; Assistance Publique des Hôpitaux de Marseille (AP-HM), pôle universitaire de psychiatrie, Marseille, France;
12
Fondation FondaMental, RTRS santé mentale, Créteil, France; Centre Hospitalier Charles Perrens, Université de Bordeaux, F-33076 Bordeaux, France; CNRS UMR 5287 - Institut de Neurosciences cognitives et intégratives d'Aquitaine (INCIA), Bordeaux, France;
13
Fondation FondaMental, RTRS santé mentale, Créteil, France; Service de psychiatrie d'adulte, Centre Hospitalier de Versailles, UFR des Sciences de la Santé Simone Veil, Université Versailles Saint-Quentin en Yvelines, Versailles, France.
14
Fondation FondaMental, RTRS santé mentale, Créteil, France; INSERM U955, Translational Psychiatry Team, Créteil, France, Paris Est University, DHU Pe-PSY, Pôle de Psychiatrie des Hôpitaux Universitaires H Mondor, Créteil, France; guillaume.fond@gmail.com.

Abstract

OBJECTIVES:

Inflammation, measured by abnormal blood C-reactive protein (CRP) level, has been described in schizophrenia (SZ), being inconsistently related to impaired cognitive functions. The aim of the present study is to investigate cognitive impairment associated with abnormal CRP levels in a large multi-centric sample of community-dwelling SZ patients, using a comprehensive neuropsychological battery.

METHOD:

Three hundred sixty-nine community-dwelling stable SZ subjects (76.2% men, mean age 32.7 y) were included and tested with a comprehensive battery of neuropsychological tests. Abnormal CRP level was defined as >3mg/L.

RESULTS:

Multiple factor analysis revealed that abnormal CRP levels, found in 104 patients (28.2%), were associated with impaired General Intellectual Ability and Abstract Reasoning (aOR = 0.56, 95% CI 0.35-0.90, P = .014), independently of age, sex, education level, psychotic symptomatology, treatments, and addiction comorbidities. Abnormal CRP levels were also associated with the decline of all components of working memory (respectively effect size [ES] = 0.25, P = .033; ES = 0.27, P = .04; ES = 0.33, P = .006; and ES = 0.38, P = .004) and a wide range of other impaired cognitive functions, including memory (ES = 0.26, P = .026), learning abilities (ES = 0.28, P = .035), semantic memory (ES = 0.26, P = .026), mental flexibility (ES = 0.26, P = .044), visual attention (ES = 0.23, P = .004) and speed of processing (ES = 0.23, P = .043).

CONCLUSION:

Our results suggest that abnormal CRP level is associated with cognitive impairment in SZ. Evaluating the effectiveness of neuroprotective anti-inflammatory strategies is needed in order to prevent cognitive impairment in SZ.

KEYWORDS:

C-reactive protein (CRP); cognition; cognitive impairment; inflammation; schizophrenia

PMID:
27143795
PMCID:
PMC4988740
DOI:
10.1093/schbul/sbw029
[Indexed for MEDLINE]
Free PMC Article

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