A 35-year-old man was killed last week when he was hit by a car as he crossed the street near his group home. According to the staff at the group home, the man had Down syndrome. The man's relatives agree to an autopsy, which is likely to show brain pathology that is similar to that found in

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Based on the information provided, the man's autopsy is likely to show brain pathology that is similar to that found in Alzheimer's disease. While Down syndrome is not directly related to Alzheimer's disease, individuals with Down syndrome have an increased risk of developing Alzheimer's disease due to the extra copy of chromosome 21 that contains the gene for the amyloid precursor protein. This results in an increased production of beta-amyloid, which is the main component of the amyloid plaques found in the brains of Alzheimer's patients.

A 35-Year-Old Man Was Killed Last Week When He Was