James R Bateman, Sudarshan Krishnamurthy, Ellen E Quillen, Christian E Waugh, Kiarri N Kershaw, Samuel N Lockhart, Timothy M Hughes, Teresa E Seeman, Steve W Cole, Suzanne Craft
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引用次数: 0
Abstract
Introduction: Adverse psychosocial exposure is associated with increased pro-inflammatory gene expression and reduced type-1 interferon gene expression known as the conserved transcriptional response to adversity (CTRA). CTRA is not well-studied in cognitive impairment but may contribute to late-life cognitive decline.
Methods: We examined perceived stress, loneliness, well-being, and the impact of coronavirus disease 2019 (COVID-19) and the relationship to the expression of genes associated with the CTRA. Mixed-effect linear models were used to quantify associations between psychosocial variables and CTRA gene expression.
Results: Eudaimonic well-being (EWB) was inversely associated with CTRA gene expression in participants with both normal cognition (NC) and mild cognitive impairment (MCI). Self-reported coping strategies differed by cognitive status and variably impacted CTRA gene expression.
Discussion: EWB is an important correlate of stress, even in people with MCI. The prodromal cognitive decline appears to moderate the significance of coping strategies as a correlate of CTRA gene expression.
Highlights: Conserved transcriptional response to adversity (CTRA) gene expression is higher with lower eudaimonic well-being.Eudaimonic well-being was important in both participants with normal cognition and those with mild cognitive impairment.Coping strategies and impact on CTRA gene expression differed by cognitive status.Loneliness in a population with relatively low loneliness scores did not impact CTRA gene expression.
期刊介绍：
Alzheimer''s & Dementia: Diagnosis, Assessment & Disease Monitoring (DADM) is an open access, peer-reviewed, journal from the Alzheimer''s Association® that will publish new research that reports the discovery, development and validation of instruments, technologies, algorithms, and innovative processes. Papers will cover a range of topics interested in the early and accurate detection of individuals with memory complaints and/or among asymptomatic individuals at elevated risk for various forms of memory disorders. The expectation for published papers will be to translate fundamental knowledge about the neurobiology of the disease into practical reports that describe both the conceptual and methodological aspects of the submitted scientific inquiry. Published topics will explore the development of biomarkers, surrogate markers, and conceptual/methodological challenges. Publication priority will be given to papers that 1) describe putative surrogate markers that accurately track disease progression, 2) biomarkers that fulfill international regulatory requirements, 3) reports from large, well-characterized population-based cohorts that comprise the heterogeneity and diversity of asymptomatic individuals and 4) algorithmic development that considers multi-marker arrays (e.g., integrated-omics, genetics, biofluids, imaging, etc.) and advanced computational analytics and technologies.
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