VD intervention also increased the gene expression of neurotrophins-like brain-derived neurotrophic factor (BDNF), nerve growth factor (NGF), Vitamin D receptor (VDR), and significantly subsided acetylcholine esterase activity (AChE) in HD mice (Manjari et al. 2022, 2023; Skv et al. 2024). Here, NGF is linked to Huntington disease.