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
Category: Gerontology
Vitamin #D supplementation reduces the risk of #fall in the vitamin D deficient elderly: an updated systematic review and meta-analysis
Vitamin D supplementation has been widely recommended to prevent falls. However, considerable controversy exists regarding the association of such supplementation and fall risk. Previous meta-analyses yielded inconsistent results because of differences in the baseline of 25-hydroxyvitamin D (25[OH]D) and dose of vitamin D and use of vitamin D or in combination with calcium in different… Continue reading Vitamin #D supplementation reduces the risk of #fall in the vitamin D deficient elderly: an updated systematic review and meta-analysis
#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
Serum #albumin and risks of hospitalization and death: Findings from the #Atherosclerosis Risk in Communities study
To determine whether lower serum albumin in community-dwelling, older adults is associated with increased risk of hospitalization and death independent of pre-existing disease. DesignProspective cohort study of participants in the fifth visit of the Atherosclerosis Risk in Communities (ARIC) study. Baseline data were collected from 2011 to 2013. Follow-up was available to December 31, 2017.… Continue reading Serum #albumin and risks of hospitalization and death: Findings from the #Atherosclerosis Risk in Communities study
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
Tracking developmental differences in real-world social #attention across #adolescence, young adulthood and older #adulthood
Detecting and responding appropriately to social information in one’s environment is a vital part of everyday social interactions. Here, we report two preregistered experiments that examine how social attention develops across the lifespan, comparing adolescents (10–19 years old), young (20–40 years old) and older (60–80 years old) adults. In two real-world tasks, participants were immersed… Continue reading Tracking developmental differences in real-world social #attention across #adolescence, young adulthood and older #adulthood
#Cognitive #leisure activity and all-cause mortality in older adults: a 4-year community-based cohort
Cognitive leisure activity, such as reading, playing mahjong or cards and computer use, is common among older adults in China. Previous studies suggest a negative correlation between cognitive leisure activity and cognitive impairment. However, the relationship between cognitive leisure activity and all-cause mortality has rarely been reported. ObjectivesThis study aims to explore the relationships between… Continue reading #Cognitive #leisure activity and all-cause mortality in older adults: a 4-year community-based cohort
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