Functional enrichment analysis showed that ABL1 was associated with Huntington's disease (P=1.12e − 08), amyotrophic lateral sclerosis (P=3.0e − 07), Alzheimer's disease (P=3.59e − 07), and Parkinson's disease (P=6.53e − 08). The gene discussed is ABL1; the disease is Alzheimer disease.