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Psychopharmacology (Berl). 2014 Jan;231(2):319-25. doi: 10.1007/s00213-013-3382-4. Epub 2013 Dec 14.

Changes in pro-inflammatory cytokines and body weight during 6-month risperidone treatment in drug naïve, first-episode schizophrenia.

Author information

1
The First Affiliated Hospital/Zhengzhou University, Zhengzhou, China, 450052, sxqzhll@126.com.

Abstract

OBJECTIVE:

The present study aimed to examine the changes in pro-inflammatory cytokines and body weight during 6-month risperidone treatment in drug naïve, first-episode schizophrenia.

METHODS:

Sixty-two drug naïve, first-episode schizophrenia (SZ group) and 60 healthy individuals (control group) were enrolled in the study. Serum interleukin-1β (IL-1β), interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α) levels, and body weight were measured at baseline for both groups, and repeated for the SZ group at five different time points during 6-month risperidone treatment.

RESULTS:

At baseline, serum IL-1β, IL-6, and TNF-α levels in the SZ group (53.28 ± 12.62, 33.98 ± 14.13, 50.08 ± 12.86 pg/mL, respectively) were significantly higher than those in the control group (23.49 ± 15.27, 15.53 ± 7.16, 32.12 ± 15.23 pg/mL, respectively) (p's < 0.001). Within the SZ group, serum IL-1β levels decreased significantly at 2 weeks (48.02 ± 16.00 pg/mL, p < 0.01) and 1 month (44.70 ± 16.63 pg/mL, p < 0.001), but then gradually increased at 2 months (48.49 ± 18.87 pg/mL), 3 months (50.59 ± 18.48 pg/mL) and 6 months (53.64 ± 16.22 pg/mL) to the levels comparable to baseline; serum IL-6 levels changed significantly over the course of treatment (p = 0.001), but reached the levels comparable to baseline at 6 months (37.13 ± 13.23 pg/mL); serum levels of TNF-α increased significantly at 3 months (55.02 ± 16.69 pg/mL, p < 0.01) and 6 months (58.69 ± 13.57 pg/mL, p < 0.001); steady and significant weight gain was observed at each follow-up time point (p's < 0.001), from 56.71 ± 9.25 kg at baseline to 62.72 ± 9.53 kg at 6 months.

CONCLUSIONS:

Risperidone treatment is associated with changes in serum pro-inflammatory cytokines levels and weight. There is an initial anti-inflammatory effect that reduces with treatment, potentially due to its weight gain side effect.

PMID:
24337064
DOI:
10.1007/s00213-013-3382-4
[Indexed for MEDLINE]
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