Odor biomarker for Alzheimer's disease

(Monell Chemical Senses Center) A new study from the Monell Center, the US Department of Agriculture, and collaborating institutions reports a uniquely identifiable odor signature from mouse models of Alzheimer's disease. The odor signature appears in urine before significant development of Alzheimer-related brain pathology, suggesting that it may be possible to develop a non-invasive tool for early diagnosis of Alzheimer's disease.