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Mitochondrial quality control in human ageing and longevity

3 days 13 hours ago
Mitochondria play central roles in cellular metabolism and in key processes such as inflammation, stress response, cell death and signalling. Mitochondrial quality control (MQC) mechanisms continuously monitor organelle integrity and function, and repair or eliminate damaged mitochondria to replace them with newly formed, healthy organelles. MQC is particularly important under metabolic or environmental stress conditions. Failure of MQC paves the way to chronic diseases, such as diabetes,...
Anna Picca

The relationship between loneliness, depressive symptoms, and self-perception of ageing among older adults

3 days 13 hours ago
CONCLUSIONS: Respondents demonstrated positive attitudes towards their own ageing in the domains of physical change and psychological growth, whereas more negative attitudes were observed in the psychosocial loss domain. Loneliness and depressive symptoms were significantly associated with a more negative self-perception of ageing among older adults. A more negative self-perception of ageing was also more frequently observed among respondents with a poorly developed social network, poorer...
Beata Boratyn

The relationship between psychological resilience and well-being among older adults

3 days 13 hours ago
CONCLUSION: Adults aged 65 and above in this study demonstrated a moderate level of resilience and lower well-being scores. Higher resilience scores were significantly correlated with increased subjective well-being. These results suggest that resilience acts as a vital internal resource that relates to mental health outcomes in the aging population, highlighting the potential for interventions focused on enhancing psychological strengths.
E Sarac

Immune-inflammatory vulnerability index for risk stratification in older adults with acute exacerbations of COPD: a prospective cohort study

3 days 13 hours ago
CONCLUSIONS: IAS is a biologically informed, geriatric-oriented index of IMV that integrates aging-related immune remodeling with dynamic inflammatory responses in older adults with AECOPD. Rather than serving as a definitive measure of fixed immune-aging burden or as a dedicated infection classification tool, IAS provides a quantitative framework for biologically relevant immune-inflammatory vulnerability stratification and short-term prognostic assessment. Further prospective multicenter...
Tingting Huang

Prescribed fire is unlikely to reduce net PM<sub>2.5</sub> emissions in most locations

3 days 13 hours ago
Wildfire smoke poses a growing global health risk, largely from fine particulate matter (PM(2.5)) emissions. Prescribed fires, which are critical for maintaining resilient forests in many locations, can also reduce wildfire emissions in treated areas that later burn. However, prescribed fires also produce smoke, creating a tradeoff in their net impact on PM(2.5) emissions. We develop a mathematical framework showing that, under most current conditions globally, prescribed fire emissions are...
Mark R Kreider

Plasma miR-34a-5p outperforms miR-126-3p in predicting cognitive decline in cerebral small vessel disease patients with impaired glucose regulation

3 days 13 hours ago
INTRODUCTION: MicroRNAs (miRNAs) are promising biomarkers for the diagnosis and prognosis of neurodegenerative diseases. Over the past few years, miR-34a-5p and miR-126-3p have become some of the most characterized miRNA, the former being associated with cellular senescence and apoptosis and the latter with the maintenance of vascular endothelial function. The present study aimed to evaluate diagnostic performance of miR-34a-5p and miR-126-3p for cognitive dysfunction in CSVD patients. In...
Yanan Wang

Short-term neurovascular and electrophysiological responses to combined visual and vibration stimulation in older adults with mild cognitive impairment

3 days 13 hours ago
Mild cognitive impairment (MCI) is associated with age-related alterations in neural oscillatory activity and cerebral hemodynamics, while mobility limitations often restrict participation in conventional exercise-based interventions. This study investigated exploratory, single-arm, within-subject short-term neurovascular and electrophysiological responses to a combined visual and vibration stimulation protocol in older adults with MCI. Cerebral blood flow was assessed using near-infrared...
Runhong Yao

Pain and the aging brain: beyond association toward action

3 days 13 hours ago
Chronic pain affects more than half of older adults and has been increasingly linked to cognitive decline, a relationship with profound implications for healthy aging. Ramezani and colleagues examined this association in 1,343 Iranian older adults from the Birjand Longitudinal Aging Study, a well‑characterised cohort from an understudied population. The study has notable strengths: a large sample size, population‑based recruitment, and DAG‑guided covariate selection. However, three...
Kianoush Saberi

Age-Related Structural-Functional Discrepancy in Muscle Indicators Among Rural Korean Older Women

3 days 13 hours ago
CONCLUSIONS: Structural and functional muscle indicators showed divergent age-related patterns among rural community-dwelling women. The performance-based 5×STS demonstrated substantially greater relative differences than structural indicators, supporting the inclusion of functional assessments alongside structural measures for age-stratified evaluation in rural settings.
Jaeyong Park