Late-life exposure to ambient air pollution is a modifiable risk factor for dementia, but epidemiological studies have shown inconsistent evidence for cognitive decline. Air quality (AQ) improvement has been associated with improved cardiopulmonary health and decreased mortality, but to the best of our knowledge, no studies have examined the association with cognitive function. We examined… Continue reading Air quality improvement and cognitive decline in community-dwelling older women in the United States: A longitudinal cohort study
Tag: Ageing
Psychological and biological resilience modulates the effects of stress on epigenetic aging
Our society is experiencing more stress than ever before, leading to both negative psychiatric and physical outcomes. Chronic stress is linked to negative long-term health consequences, raising the possibility that stress is related to accelerated aging. In this study, we examine whether resilience factors affect stress-associated biological age acceleration. Recently developed “epigenetic clocks” such as… Continue reading Psychological and biological resilience modulates the effects of stress on epigenetic aging
Weeklong improved colour contrasts sensitivity after single 670 nm exposures associated with enhanced mitochondrial function
Mitochondrial decline in ageing robs cells of ATP. However, animal studies show that long wavelength exposure (650–900 nm) over weeks partially restores ATP and improves function. The likely mechanism is via long wavelengths reducing nanoscopic interfacial water viscosity around ATP rota pumps, improving their efficiency. Recently, repeated 670 nm exposures have been used on the… Continue reading Weeklong improved colour contrasts sensitivity after single 670 nm exposures associated with enhanced mitochondrial function
Charting host-microbe co-metabolism in #skin #aging and application to metagenomics data
During aging of human skin, a number of intrinsic and extrinsic factors cause the alteration of the skin’s structure, function and cutaneous physiology. Many studies have investigated the influence of the skin microbiome on these alterations, but the molecular mechanisms that dictate the interplay between these factors and the skin microbiome are still not fully… Continue reading Charting host-microbe co-metabolism in #skin #aging and application to metagenomics data
Optimal Blood #Pressure Keeps Our #Brains Younger
Elevated blood pressure (BP) is a major health risk factor and the leading global cause of premature death. Hypertension is also a risk factor for cognitive decline and dementia. However, when elevated blood pressure starts impacting cerebral health is less clear. We addressed this gap by estimating how a validated measure of brain health relates… Continue reading Optimal Blood #Pressure Keeps Our #Brains Younger
#Aging and comorbidities influence the risk of hospitalization and mortality in #diabetic patients experiencing severe hypoglycemia
Severe hypoglycemia requiring access to the Emergency Department is more frequent in older patients with multiple comorbidities.•Risk of hospitalization and mortality within one year since the hypoglycemic event is higher in older frail patients.•Severe hypoglycemia could increase the cardiovascular risk and could be a marker of future cardiovascular events.•A less stringent glycemic control and the… Continue reading #Aging and comorbidities influence the risk of hospitalization and mortality in #diabetic patients experiencing severe hypoglycemia
Low #muscle mass in #older adults and mortality: A systematic review and meta-analysis
Sarcopenia comprises a loss of muscle function and muscle mass. So far, the association between the later and mortality in older adults is inconsistent. A meta-analysis was performed to assess whether muscle mass measured by appendicular skeletal muscle mass index (ASMI) is associated with higher mortality in older adults. Articles of interest were searched for… Continue reading Low #muscle mass in #older adults and mortality: A systematic review and meta-analysis
#Erythrocyte adenosine A2B receptor prevents #cognitive and #auditory dysfunction by promoting hypoxic and metabolic reprogramming
Hypoxia drives aging and promotes age-related cognition and hearing functional decline. Despite the role of erythrocytes in oxygen (O2) transport, their role in the onset of aging and age-related cognitive decline and hearing loss (HL) remains undetermined. Recent studies revealed that signaling through the erythrocyte adenosine A2B receptor (ADORA2B) promotes O2 release to counteract hypoxia… Continue reading #Erythrocyte adenosine A2B receptor prevents #cognitive and #auditory dysfunction by promoting hypoxic and metabolic reprogramming
#Renal hemodynamics across the adult lifespan: Relevance of #flow pulsatility to chronic kidney disease
Elevated renal flow pulsatility may contribute to the pathogenesis of chronic kidney disease (CKD). The purpose of this study was to investigate the associations among age, renal flow pulsatility, and CKD biomarkers in non-CKD adults and CKD patients. MethodsNon-CKD adults (n = 415) and CKD patients (n = 136) aged between 22 and 83 years underwent the renal blood flow… Continue reading #Renal hemodynamics across the adult lifespan: Relevance of #flow pulsatility to chronic kidney disease
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