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Prospective association of depression symptoms with exceptional longevity among older women
Older women may experience elevated depression symptoms, which have been associated with morbidity and mortality. Yet, few studies have examined associations of depression symptoms with longevity. We examined associations among older women of depression symptoms with survival to ages 90, 95, and 100, and survival to age 90 with intact mobility and cognitive functioning. Participants were 70,560 women enrolled in the Women's Health Initiative with potential, due to birth year, to reach age ≥ 90...
Electrochemical upcycling of uranyl from radioactive organic wastewater with a self-standing covalent-organic framework electrode
Efficient upcycling of uranyl from uranyl-containing radioactive organic wastewater is of utmost importance for the sustainable development of nuclear energy. In this work, an indirect electrochemical method to upcycle uranyl from radioactive organic wastewater is proposed. A cost-efficient self-standing polyarylether-based covalent organic framework electrode (PAE-COF-AO@CC) not only acts as an oxygen reduction reaction (ORR) catalyst for hydrogen peroxide (H(2)O(2)) production, but also...
Monocyte-secreted Wnt reduces the efficiency of central nervous system remyelination
The regeneration of myelin in the central nervous system (CNS) reinstates nerve health and function, yet its decreased efficiency with aging and progression of neurodegenerative disease contributes to axonal loss and/or degeneration. Although CNS myeloid cells have been implicated in regulating the efficiency of remyelination, the distinct contribution of blood monocytes versus that of resident microglia is unclear. Here, we reveal that monocytes have non-redundant functions compared to...
Systemic deficits in lipid homeostasis promote aging-associated impairments in B cell progenitor development
Organismal aging has been associated with diverse metabolic and functional changes across tissues. Within the immune system, key features of physiological hematopoietic cell aging include increased fat deposition in the bone marrow, impaired hematopoietic stem and progenitor cell (HSPC) function, and a propensity towards myeloid differentiation. This shift in lineage bias can lead to pre-malignant bone marrow conditions such as clonal hematopoiesis of indeterminate potential (CHIP) or clonal...
German longevity study reveals novel rare pro-longevity alleles clustering in mTOR signaling pathway
In this study, we investigated the contribution of rare coding variants to human longevity by analyzing whole exome sequencing data from 1245 German long-lived individuals (LLI) and 4105 geographically matched younger controls. We identified novel exome-wide significant associations at both the single-variant and gene level, with a significant over-representation of genes involved in mechanistic target of rapamycin (mTOR) signaling. As such, three rare single variants in the mTOR-pathway genes...
Allostatic load, a measure of cumulative physiological stress, impairs brain structure but not <em>β</em>-accumulation in older adults: an exploratory study
INTRODUCTION: Allostatic load (AL) is a composite score of progressive physiological dysregulations in response to long-term exposure to everyday stress. Despite growing interest, limited research has focused on links with cerebral and cognitive aspects of aging and with markers sensitive to Alzheimer's disease (AD) in a healthy elderly population and with a multimodal approach.