CCL2 and psychotic disorder: In order to capture a comprehensive picture of the inflammatory pattern in first-episode psychosis, we focussed on a wide range of inflammatory markers, including pro-inflammatory cytokines (interleukins IL-1α, IL-1β, IL-2, IL-6, interferon-gamma (IFN-γ), tumor necrosis factor-alpha (TNF-α)), anti-inflammatory cytokines (IL4, IL-10), chemokines (IL-8, monocyte chemotactic protein-1 (MCP-1)), and grow factors (vascular endothelial growth factor (VEGF), epidermal growth factor (EGF)).