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100 1 _ |a Lau, Yolanda
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245 _ _ |a Sex differences in the association between repetitive negative thinking and neurofilament light
260 _ _ |a [London]
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520 _ _ |a Emerging evidence suggests that repetitive negative thinking (RNT; i.e., worry and ruminative brooding) is associated with biomarkers of Alzheimer's disease. Given that women have a greater risk of many neurodegenerative diseases, this study investigated whether worry and brooding are associated with general neurodegeneration and whether associations differ by sex. Exploratory analyses examined whether allostatic load, a marker of chronic stress, mediates any observed relationships. Baseline data from 134 cognitively healthy older adults in the Age-Well clinical trial were utilised. Worry and brooding were assessed using questionnaires. Plasma neurofilament light chain (NfL), a biomarker of neurodegeneration, was quantified using a Meso Scale Discovery assay. We found a positive interaction between brooding and sex on NfL, with higher brooding associated with greater NfL levels in women. No associations were observed between worry/ruminative brooding and allostatic load. These results offer preliminary support that RNT is associated with worse brain health, specifically in women.
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700 1 _ |a Bansal, Amit
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700 1 _ |a Palix, Cassandre
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700 1 _ |a Demnitz-King, Harriet
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700 1 _ |a Wirth, Miranka
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700 1 _ |a Klimecki-Lenz, Olga Maria
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700 1 _ |a Chetelat, Gael
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700 1 _ |a Poisnel, Géraldine
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700 1 _ |a Marchant, Natalie L.
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700 1 _ |a Chocat, Anne
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700 1 _ |a Collette, Fabienne
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700 1 _ |a De La Sayette, Vincent
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700 1 _ |a Delarue, Marion
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700 1 _ |a Espérou, Hélène
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700 1 _ |a Ferrand Devouge, Eglantine
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700 1 _ |a Frison, Eric
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700 1 _ |a Kuhn, Elizabeth
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700 1 _ |a Lefranc, Valérie
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700 1 _ |a Lutz, Antoine
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700 1 _ |a Ourry, Valentin
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700 1 _ |a Quillard, Anne
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700 1 _ |a Salmon, Eric
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700 1 _ |a Smagghe, Delphine
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700 1 _ |a Smith, Rhonda
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700 1 _ |a Schlosser, Marco
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700 1 _ |a Touron, Edelweiss
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700 1 _ |a Wallet, Cédric
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700 1 _ |a Whitfield, Tim
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773 _ _ |a 10.1038/s44184-024-00093-8
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