To gather relevant studies, we conducted searches in prominent databases, including NCBI and Web of Science, using specific keywords, such as mushroom, bioactive components, structure, Alzheimer’s disease, hyperphosphorylated tau, amyloid formation, cholinesterase dysfunction, OS, neuroinflammation, neuronal apoptosis, neurotrophic factors (NTFs), ER stress, excitotoxicity, and mitochondrial dysfunction. Here, BCHE is linked to Alzheimer disease.