Western blot analysis indicated a reduced eNOS protein level (~25%) in the schizophrenia cases relative to the controls (P=0.045; Figures 1c and g), with no group difference in nNOS (P=0.86; Figures 1b and g) or β-actin (P=0.55, data not shown) protein expression. The gene discussed is NOS1; the disease is schizophrenia.