GNRH1 and neurodegenerative disease: Based on the KEGG pathway enrichment analysis, hnRNP E1_relevant genes were involved in the dopaminergic synapse, Wnt signaling pathway, gnRH secretion, mTOR signaling pathway, pathways of neurodegenerative diseases, sphingolipid signaling pathway, AMPK signaling pathway, proteoglycans in cancer, and long-term depression.