Lead Exposure Implicated in Rising Alzheimer's Rates
US study finds that patients with high bone lead levels are three times more likely to develop the disease
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Higher cumulative lead exposure is linked to increased risk of Alzheimer's disease and all-cause dementia in a US cohort.
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The study utilized NHANES data, correlating lead measurements with Medicare claims and death records over 30 years.
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Individuals with high patella bone lead levels had nearly three times the risk of Alzheimer's compared to those with low levels.
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Blood lead levels were not associated with dementia risk, while bone lead indicated cumulative exposure over decades.
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Reducing bone lead levels to the 25th percentile could potentially prevent 18% of new all-cause dementia cases.
