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Estrogens and MemoryBasic Research and Clinical Implications$
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Karyn M. Frick

Print publication date: 2020

Print ISBN-13: 9780190645908

Published to Oxford Scholarship Online: February 2020

DOI: 10.1093/oso/9780190645908.001.0001

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Estrogenic Regulation of Synaptic Health and Cognition in Aging Rhesus Monkeys

Estrogenic Regulation of Synaptic Health and Cognition in Aging Rhesus Monkeys

(p.303) 17 Estrogenic Regulation of Synaptic Health and Cognition in Aging Rhesus Monkeys
Estrogens and Memory

Johanna L. Crimins

Yuko Hara

John H. Morrison

Oxford University Press

A compelling case can be made for estrogen’s role in maintaining synaptic health in the context of cognitive aging. This chapter first reviews clinical literature pertinent to estrogenic actions on cognition in menopausal women. Next, the authors provide a comprehensive summary of recent investigations in aging rhesus monkeys, which have emerged as a particularly powerful model for the study of synaptic and cognitive effects of both natural and surgical menopause. In particular, we focus on hippocampal and dorsolateral prefrontal cortex neurons and circuits that degenerate in normal aging and Alzheimer’s disease. The responsiveness of these brain regions to estrogen and implications for their related memory systems are discussed. Finally, the chapter highlights work that needs to be done to more fully understand the molecular basis for the complex interplay between menopause, aging, and vulnerability to Alzheimer’s disease in higher cognitive function and synaptic health.

Keywords:   Area 46, dentate gyrus, working memory, 17-beta estradiol, hormone replacement therapy

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