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ORIGINAL RESEARCH article

Front. Aging Neurosci.

Sec. Alzheimer's Disease and Related Dementias

This article is part of the Research TopicWomen in Aging Neuroscience: Neurodegenerative DisordersView all articles

Follicle-Stimulating Hormone Linked to Cognitive Decline and Amyloid Burden in Postmenopausal Women

Provisionally accepted
Sheng-Min  WangSheng-Min Wang1Chaiho  JeongChaiho Jeong1Yoo Hyun  UmYoo Hyun Um1Dong  Woo KangDong Woo Kang1Sunghwan  KimSunghwan Kim1Soyoung  LeeSoyoung Lee2Chang Uk  LeeChang Uk Lee1Howard  J AizensteinHoward J Aizenstein3Ki-hyun  BaekKi-hyun Baek1Hyun Kook  LimHyun Kook Lim1*
  • 1Catholic University of Korea, Seoul, Republic of Korea
  • 2Harvard Medical School, Boston, United States
  • 3University of Pittsburgh Alzheimer's Disease Research Center, Pittsburgh, United States

The final, formatted version of the article will be published soon.

Women have a higher risk of developing Alzheimer's disease (AD) than men, with hormonal changes during menopause being a potential factor. However, the exact relationship between these hormonal changes, cognitive function, and AD pathology is not fully understood. This study investigates the differential associations between serum follicle-stimulating hormone (FSH) and estradiol levels with cognitive function and cerebral amyloid-βeta (Aβ) deposition, quantified using amyloid positron emission tomography, in postmenopausal women across the spectrum from cognitively normal aging to AD dementia. A total of 884 postmenopausal women, aged 60 years or older, were enrolled in the study. Participants were classified into three groups based on their cognitive function: cognitively normal (CN), mild cognitive impairment (MCI), and AD dementia. Higher FSH levels were associated with poorer cognitive performance and greater cerebral Aβ deposition in postmenopausal women. FSH levels were highest in women with AD dementia, followed by those with MCI, and lowest in CN participants. No significant relationship was observed between estradiol levels and cognitive outcomes or Aβ burden. Further analysis showed a positive correlation between FSH levels and global as well as regional cerebral Aβ deposition. Mediation analysis indicated that FSH's impact on cognitive function was mediated by cerebral Aβ burden. Estradiol levels, however, had no significant association with either cognitive performance or Aβ pathology. Elevated FSH, not low E2, is linked to cognitive decline and Aβ pathology in postmenopausal women. FSH may be a key risk factor for cerebral Aβ deposition and cognitive decline in older women. Further research is needed to elucidate the mechanisms involved and explore hormonal interventions for AD.

Keywords: Follicle-stimulating hormone, estrogen, cognitive impairment, Amyloid retention, Alzheimer's disease

Received: 02 Sep 2025; Accepted: 21 Nov 2025.

Copyright: © 2025 Wang, Jeong, Um, Kang, Kim, Lee, Lee, Aizenstein, Baek and Lim. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence: Hyun Kook Lim, drblues@catholic.ac.kr

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