Serum corticosterone and serotonin levels were measured, anxiety and cognition were assessed, synaptic plasticity-related proteins and genes were quantified, and neuronal nitric oxide synthase (nNOS), nitric oxide (NO) accumulation, nNOS-postsynaptic density protein 95 (PSD95), and nNOS-carboxy-terminal PDZ ligand of nNOS (CAPON) interactions were evaluated. Here, DLG4 is linked to Anxiety.