Sex differences in the association of Alzheimer's disease biomarkers and cognition in a multicenter memory clinic study.

IF 7.9 1区 医学 Q1 CLINICAL NEUROLOGY
Cecilia Boccalini, Debora Elisa Peretti, Max Scheffler, Linjing Mu, Alessandra Griffa, Nathalie Testart, Gilles Allali, John O Prior, Nicholas J Ashton, Henrik Zetterberg, Kaj Blennow, Giovanni B Frisoni, Valentina Garibotto
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引用次数: 0

Abstract

Background: This study investigated sex differences in the associations between Alzheimer's disease (AD) biomarkers, cognitive performance, and decline in memory clinic settings.

Methods: 249 participants (females/males:123/126), who underwent tau-PET, amyloid-PET, structural MRI, and plasma glial fibrillary acidic protein (GFAP) measurement were included from Geneva and Lausanne Memory Clinics. Mann-Whitney U tests investigated sex differences in clinical and biomarker data. Linear regression models estimated the moderating effect of sex on the relationship between biomarkers and cognitive performance and decline. Sex differences in cognitive decline were further evaluated using longitudinal linear mixed-effect models with three-way interaction effects.

Results: Women and men present similar clinical features, amyloid, and neurodegeneration. Women had higher tau load and plasma levels of GFAP than men (p < 0.05). Tau associations with amyloid (standardized β = 0.54,p < 0.001), neurodegeneration (standardized β=-0.44,p < 0.001), and cognition (standardized β=-0.48,p < 0.001) were moderated by a significant interaction with sex. Specifically, the association between amyloid and tau was stronger among women than men (standardized β=-0.19,p = 0.047), whereas the associations between tau and cognition and between tau and neurodegeneration were stronger among men than in women (standardized β=-0.76,p = 0.001 and standardized β=-0.56,p = 0.044). Women exhibited faster cognitive decline than men in the presence of severe cortical thinning (p < 0.001).

Conclusion: Women showed higher tau load and stronger association between amyloid and tau than men. In individuals with high tau burden, men exhibited greater neurodegeneration and cognitive impairment than women. These findings support that sex differences may impact tau deposition through an upstream interplay with amyloid, leading to downstream effects on neurodegeneration and cognitive outcomes.

一项多中心记忆临床研究中阿尔茨海默病生物标志物与认知关联的性别差异
背景:本研究调查了阿尔茨海默病(AD)生物标志物、认知表现和记忆力下降之间的性别差异。方法:来自日内瓦和洛桑记忆诊所的249名参与者(女性/男性:123/126)接受了tau-PET、淀粉样pet、结构MRI和血浆胶质纤维酸性蛋白(GFAP)测量。曼-惠特尼U测试调查了临床和生物标志物数据中的性别差异。线性回归模型估计了性别对生物标志物与认知表现和衰退之间关系的调节作用。使用纵向线性混合效应模型进一步评估认知能力下降的性别差异。结果:女性和男性表现出相似的临床特征,淀粉样蛋白和神经变性。结论:女性的tau蛋白载量和血浆GFAP水平均高于男性(p),且淀粉样蛋白和tau蛋白之间的相关性强于男性。在tau蛋白负担高的个体中,男性比女性表现出更大的神经变性和认知障碍。这些发现支持性别差异可能通过与淀粉样蛋白的上游相互作用影响tau沉积,导致下游对神经变性和认知结果的影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Alzheimer's Research & Therapy
Alzheimer's Research & Therapy 医学-神经病学
CiteScore
13.10
自引率
3.30%
发文量
172
审稿时长
>12 weeks
期刊介绍: Alzheimer's Research & Therapy is an international peer-reviewed journal that focuses on translational research into Alzheimer's disease and other neurodegenerative diseases. It publishes open-access basic research, clinical trials, drug discovery and development studies, and epidemiologic studies. The journal also includes reviews, viewpoints, commentaries, debates, and reports. All articles published in Alzheimer's Research & Therapy are included in several reputable databases such as CAS, Current contents, DOAJ, Embase, Journal Citation Reports/Science Edition, MEDLINE, PubMed, PubMed Central, Science Citation Index Expanded (Web of Science) and Scopus.
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