Study Status: Completed
Recruit Status: Completed
Study Type: Observational
Official Title: Research of Olfactory Neuroepithelial Tissue as a Potential Biomarker of Alzheimer Disease
Brief Summary: The purpose of this study is to evaluate the olfactory neuroepithelium as a biomarker of Alzheimer disease. The early diagnosis of Alzheimer disease is of importance for obtaining better response to treatment, but recently reported biomarkers have some limitations. Olfactory neuroepithelium tissue which is accessible through office-based biopsy without difficulty is known to reflect brain pathology that confirms the diagnosis of Alzheimer disease. This study will help in the early detection and treatment of Alzheimer disease.