Increased interleukin-2 serum levels were associated with psychopathological symptoms and cognitive deficits in treatment-resistant schizophrenia.

Abstract:

:Accumulating evidence showed that interleukin-2 (IL-2) may be involved in the pathophysiology of schizophrenia. Increased IL-2 levels have been found in the serum of schizophrenia patients with mixed results. In the present study, we assessed serum IL-2 levels in a large group of 160 schizophrenia patients compared to 60 healthy control subjects matched for age and gender. The schizophrenia symptomatology was assessed by the Positive and Negative Syndrome Scale (PANSS), and serum IL-2 levels were measured by sandwich ELISA. The results showed that IL-2 levels were significantly higher in chronic patients with schizophrenia than in healthy control subjects (p<0.001). Correlation analysis revealed a significantly negative association between IL-2 levels and the PANSS cognitive and positive subscales (both p<0.01). Stepwise multiple regression analyses confirmed IL-2 as the influencing factor for the cognitive and positive subscales of the PANSS. Our findings suggested that increased IL-2 may be involved in the cognitive impairments and psychopathology of chronic schizophrenia.

journal_name

Schizophr Res

journal_title

Schizophrenia research

authors

Tan Y,Li Y,Tan S,Wang Z,Yang FD,Cao B,Zunta-Soares GB,Soares JC,Zhang XY

doi

10.1016/j.schres.2015.10.038

subject

Has Abstract

pub_date

2015-12-01 00:00:00

pages

16-21

issue

1-3

eissn

0920-9964

issn

1573-2509

pii

S0920-9964(15)30038-4

journal_volume

169

pub_type

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