Cholinesterase inhibitors serve as a strategy for the treatment of neurological disorders (Alzheimer’s and Parkinson’s diseases, AD and PD, respectively); amylase and glucosidase inhibitors act as anti-diabetes mellitus factors, while tyrosinase inhibitors can be useful for dermatological disorders linked to excessive amounts of melanin, which can lead to skin cancer [19]. The gene discussed is BCHE; the disease is Parkinson disease.