ATP13A2 and Parkinson disease: Notice that many PD risk genes (such as ATP13A2, EIF4G1, GBA, VPS13C, and so on)' functions in bone remodeling and homeostasis have not been investigated, although they are widely expressed in various tissues and have important regulatory effects on cell metabolism such as autophagy, immune response, mitochondrial biology, lysosomal dysfunction (e.g. GBA, ATP13A2) and endocytic pathway [80, 81].