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Exploring the quality of life of older people in long-term care facilities in the Sub-Saharan region: a scoping review

2 weeks 3 days ago
CONCLUSIONS: Evidence shows a lack of structured long-term care policy in sub-Saharan Africa. Given the increasing demand for long-term care, there is an urgent need for policies that address factors affecting quality of life and ensure better care for older people in these facilities. A protocol for the scoping review was preregistered on the Open Science Framework Registry on 9th September 2023 (https://osf.io/xm8r5/).
Naomi Hlongwane

DeepSpaceDB: a spatial transcriptomics atlas for interactive in-depth analysis of tissues and tissue microenvironments

2 weeks 3 days ago
Spatial transcriptomics enables detailed mapping of gene expression within tissues, revealing spatial organization of cellular and molecular processes. However, generating such data is costly and technically challenging, and analysis requires advanced bioinformatics skills. Although public datasets are growing, existing databases offer limited tools for interactive exploration and cross-sample comparison. Here, we introduce DeepSpaceDB (www.deepspacedb.com), a next-generation spatial...
Vladyslav Honcharuk

Elevated alpha-1 antitrypsin and C-reactive protein: association on all-cause and cause-specific mortality in older adults

2 weeks 3 days ago
Alpha-1 antitrypsin (AAT) deficiency in younger people is well characterized, but the effects of elevated AAT levels in older age are unclear. We examined the effect of elevated AAT levels and mortality in a longitudinal cohort of older adults, alongside high-sensitivity C-reactive protein (hs-CRP) levels. This post hoc analysis of the ASPirin in Reducing Events in the Elderly (ASPREE) trial included 11,879 adults aged ≥ 70 years without prior cardiovascular disease, dementia or life-limiting...
Cammie Tran

Associations of changes in social isolation and loneliness with all-cause mortality among older adults: a prospective cohort study

2 weeks 3 days ago
Social isolation and loneliness are growing public health concerns worldwide; however, the independent and combined associations of change in social isolation and loneliness with mortality are yet to be elucidated. This study aimed to investigate these associations among older adults. This cohort study used data from the Chinese Longitudinal Healthy Longevity Survey, which recruited participants from 2002 to 2011. A total of 8,956 participants aged 65 years and older were included. We used data...
Qing-Mei Huang

Chaperone-mediated autophagy controls brown adipose tissue thermogenic activity

2 weeks 3 days ago
Brown adipose tissue (BAT) protects against obesity, diabetes, and cardiovascular disease. During BAT activation, macroautophagy is inhibited, while chaperone-mediated autophagy (CMA) is induced, promoting thermogenic gene expression, adipokine release, oxidative activity, and lipolysis. Aging reduces BAT function and lowers levels of LAMP2A, the rate-limiting CMA component. Pharmacological CMA activation restores BAT activity in aged mice. To explore the CMA's role in BAT, we generated...
Alberto Mestres-Arenas

ERC accumulation depletes Sir2 from rDNA and induces cellular senescence by rDNA destabilization

2 weeks 3 days ago
Genome instability is a major factor contributing to cellular senescence. The rRNA gene (rDNA), a repetitive sequence array, is a highly unstable region of the genome. In budding yeast, this instability induces senescence and shortens the lifespan. While the importance of rDNA stability in the aging process is well recognized, the mechanism driving rDNA instability in old cells remains unclear. Using effective methods to isolate old cells in budding yeast, our observations suggest that...
Yoshio Yamamuro

Longevity-promoting mitochondrial unfolded protein response activation requires elements of the PeBoW complex

2 weeks 3 days ago
Mitochondria play a crucial role in cellular energy metabolism and homeostasis and are strongly implicated in aging and age-related diseases. The outer mitochondrial membrane protein voltage-dependent anion channel (VDAC) plays multiple roles in mitochondrial homeostasis, including transport of metabolites, ATP, and Ca^(2+) Dysregulation of VDAC levels has been associated with cancer, neurodegeneration, metabolic disorders, and aging. Previously, we demonstrated that elevated VDAC-1 levels in...
Adebanjo Adedoja