Observational study shows olfactory loss links to cognitive decline in Parkinson's Disease, indicating potential for early intervention.
Olfactory loss in PD reflects widespread neurodegeneration involving nigrostriatal and posterior cortical networks. Integrating olfactory assessment with imaging markers may better identify patients at risk for cognitive decline, supporting improved risk stratification and early intervention.
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Jeong et al. (2026) studied this question.
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