Preprint / Version 1

The Neuroprotective Role of Estrogen Across Reproductive Stages and Its Implications for Alzheimer’s Disease in Women

##article.authors##

  • Lucia Zimring Los Angeles Center for Enriched Studies
  • Maria

DOI:

https://doi.org/10.58445/rars.4107

Keywords:

Alzheimer’s Disease, Estrogen, Neuroprotective Role, Reproductive Stages

Abstract

Hormonal changes across lifespan (stages) in women could be contributing, where estrogen and prog levels fluctuate. Estrogen has been shown to support memory and brain function, so in these stages where estrogen levels decline, it could contribute to AD symptoms, including decline in memory and cognitive function. One key area where estrogen is neuroprotective is through support of memory, communication between nerve cells synapses, and glucose metabolism as well as being an anti-inflammatory agent in the brain. As estrogen levels decline during menopause, regions in the brain like the hippocampus could be more prone to the various symptoms resulting from AD like memory loss, brain fog, and development of amyloid plaques and tau tangles in the brain. Hormone Replacement Therapy (HRT/ERT) has been studied for its role to potentially prevent AD, but results from research have been inconsistent with no proper conclusion.

References

Ballard, C., Gauthier, S., Corbett, A., Brayne, C., Aarsland, D., & Jones, E. (2011). Alzheimer’s disease. The Lancet, 377(9770), 1019–1031. https://doi.org/10.1016/S0140-6736(10)61349-9

Barth, C., Galea, L. A., Jacobs, E. G., Lee, B. H., Westlye, L. T., & De Lange, A.-M. G. (2025). Menopausal hormone therapy and the female brain: Leveraging neuroimaging and prescription registry data from the UK Biobank cohort. eLife, 13, RP99538. https://doi.org/10.7554/eLife.99538.3

Briceno Silva, G., Arvelaez Pascucci, J., Karim, H., Kaur, G., Olivas Lerma, R., Mann, A. K., Gnanasekaran, S., & Thomas Garcia, K. D. (2024). Influence of the Onset of Menopause on the Risk of Developing Alzheimer’s Disease. Cureus. https://doi.org/10.7759/cureus.69124

Cagnacci, A., & Venier, M. (2019). The Controversial History of Hormone Replacement Therapy. Medicina, 55(9), 602. https://doi.org/10.3390/medicina55090602

Camon, C., Garratt, M., & Correa, S. M. (2024). Exploring the effects of estrogen deficiency and aging on organismal homeostasis during menopause. Nature Aging, 4(12), 1731–1744. https://doi.org/10.1038/s43587-024-00767-0

Caroni, P., Donato, F., & Muller, D. (2012). Structural plasticity upon learning: Regulation and functions. Nature Reviews Neuroscience, 13(7), 478–490. https://doi.org/10.1038/nrn3258

Garg, R., & Munshi, A. (2024). Sleep and Brain Function at Menopause. Journal of Mid-Life Health, 15(4), 221–224. https://doi.org/10.4103/jmh.jmh_201_24

Joue, G., Navarro-Schröder, T., Achtzehn, J., Moffat, S., Hennies, N., Fuß, J., Döller, C., Wolbers, T., & Sommer, T. (2024). Effects of estrogen on spatial navigation and memory. Psychopharmacology, 241(5), 1037–1063. https://doi.org/10.1007/s00213-024-06539-3

McCarthy, M., & Raval, A. P. (2020). The peri-menopause in a woman’s life: A systemic inflammatory phase that enables later neurodegenerative disease. Journal of Neuroinflammation, 17(1), 317. https://doi.org/10.1186/s12974-020-01998-9

McEwen, B. S., Akama, K. T., Spencer-Segal, J. L., Milner, T. A., & Waters, E. M. (2012). Estrogen effects on the brain: Actions beyond the hypothalamus via novel mechanisms. Behavioral Neuroscience, 126(1), 4–16. https://doi.org/10.1037/a0026708

Mosconi, L., Nerattini, M., Williams, S., & Fink, M. (2025). New Horizons in Menopause, Menopausal Hormone Therapy, and Alzheimer’s Disease: Current Insights and Future Directions. The Journal of Clinical Endocrinology & Metabolism, 110(4), 911–921. https://doi.org/10.1210/clinem/dgaf026

Paterni, I., Granchi, C., Katzenellenbogen, J. A., & Minutolo, F. (2014). Estrogen receptors alpha (ERα) and beta (ERβ): Subtype-selective ligands and clinical potential. Steroids, 90, 13–29. https://doi.org/10.1016/j.steroids.2014.06.012

Rehbein, E., Hornung, J., Sundström Poromaa, I., & Derntl, B. (2021). Shaping of the Female Human Brain by Sex Hormones: A Review. Neuroendocrinology, 111(3), 183–206. https://doi.org/10.1159/000507083

Russell, J. K., Jones, C. K., & Newhouse, P. A. (2019). The Role of Estrogen in Brain and Cognitive Aging. Neurotherapeutics, 16(3), 649–665. https://doi.org/10.1007/s13311-019-00766-9

Snyder, H. M., Asthana, S., Bain, L., Brinton, R., Craft, S., Dubal, D. B., Espeland, M. A., Gatz, M., Mielke, M. M., Raber, J., Rapp, P. R., Yaffe, K., & Carrillo, M. C. (2016). Sex biology contributions to vulnerability to Alzheimer’s disease: A think tank convened by the Women’s Alzheimer’s Research Initiative. Alzheimer’s & Dementia, 12(11), 1186–1196. https://doi.org/10.1016/j.jalz.2016.08.004

Tang, Z.-R., Zhang, R., Lian, Z.-X., Deng, S.-L., & Yu, K. (2019). Estrogen-Receptor Expression and Function in Female Reproductive Disease. Cells, 8(10), 1123. https://doi.org/10.3390/cells8101123

Zhu, D., Montagne, A., & Zhao, Z. (2021). Alzheimer’s pathogenic mechanisms and underlying sex difference. Cellular and Molecular Life Sciences, 78(11), 4907–4920. https://doi.org/10.1007/s00018-021-03830-w

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2026-09-09

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