Alzheimer's disease has an odor signature

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• Odor biomarker in urine emerges prior to serious advancement of brain decline and mental deterioration
• Urine test could provide early diagnosis allowing patients and families time to plan for the future
• The characteristic odor signature is related to the presence of an underlying gene, findings suggest
• Extensive studies are needed to identify and characterize Alzheimer's-related odor signatures in humans
• Alzheimer's is a chronic neurodegenerative disease that gets worse over time
• The study is published in the online journal Scientific Reports