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A nasal swab detects Alzheimer’s years before symptoms by spotting gene changes in nose cells, with 81% accuracy in early trials.
A Duke University study finds a nasal swab may detect Alzheimer’s disease years before symptoms appear by analyzing gene activity in cells from the nose’s olfactory lining.
In a small trial of 22 participants, the test identified Alzheimer’s-related patterns with 81% accuracy, including in asymptomatic individuals with biological markers.
The non-invasive method, which uses a brush to collect cells after numbing the nose, could enable earlier diagnosis and treatment, potentially improving outcomes.
Researchers believe the nasal cells reflect early brain changes, offering a promising window into the disease’s onset.
While not yet a diagnostic tool, the approach holds potential for widespread use if larger trials confirm its reliability.
Un hisopo nasal detecta la enfermedad de Alzheimer años antes de los síntomas mediante la detección de cambios genéticos en las células de la nariz, con una precisión del 81% en los primeros ensayos.