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Imaging shows higher dementia risk in 9/11 responders

Researchers found that first responders from the World Trade Center on 9/11 with cognitive impairment symptoms had imaging scans showing significantly reduced cortical thickness in 23 of 34 brain regions, which was similar to patients with Alzheimer's disease and other dementias, and first responders had significantly lower cortical thickness in seven regions near or in the temporal lobe, regardless of cognitive impairment, indicating a population-level impact. The findings were presented at the Alzheimer's Association annual meeting and published in Alzheimer's and Dementia: Diagnosis, Assessment and Disease Monitoring.

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