title: Vitamin D levels may affect brain health in Parkinson's disease.  Brain tissue, particularly in the hippocampus, contains vitamin D receptors.
mesh_terms: D003071:Cognition / Q000187:drug effects*; D003072:Cognition Disorders / Q000188:drug therapy* / Q000209:etiology; D006801:Humans; D010300:Parkinson Disease / Q000150:complications / Q000188:drug therapy* / Q000503:physiopathology; D014807:Vitamin D / Q000032:analysis / Q000502:physiology / Q000627:therapeutic use*
chemical_list: D014807:Vitamin D