Alzheimer'S Disease, Dementia, Mild Cognitive Impairment and the Menopause: A ‘Window of Opportunity’?

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Abstract
Alzheimer's disease (AD) is not an inevitable consequence of aging and may be modified by both adverse and protective factors. The pathological changes of AD commence in midlife and AD has a long preclinical phase that may be diagnosed by biomarkers in the cerebrospinal fluid and by brain MRI. New clinical criteria for the diagnosis of AD dementia and AD mild cognitive impairment (MCI) have been proposed. MCI and dementia are frequently the result of AD and cerebrovascular disease combined. Over the age of 85 years, MCI and dementia are more common in women than in men. Women with a surgical premature menopause have an increased risk of MCI and AD. Menopausal hormone therapy from the menopause to the age of 60 years, when any risks of menopausal hormone therapy are extremely small, may provide a ‘window of opportunity’ to reduce the risk of MCI and AD in later life. Many measures may help to prevent, delay or minimize AD in both women and men and should be actively encouraged.

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