Post hoc comparisons showed that CSF SNAP‐25 levels were significantly higher in VaD versus AD combined with MCI due to prodromal AD (95% CI: −0.39 to −0.20, p < 0.001) and in NPH versus AD combined with MCI due to prodromal AD (95% CI: −0.45 to −0.27, p < 0.001). The gene discussed is SNAP25; the disease is Alzheimer disease.