Articles tagged with Life Span
Researchers at Kumamoto University created a new system to assess healthy lifespans in nematodes, which may help develop drugs and find foods that extend human lifespans. The system, C-LAS, uses images of living and dead nematodes to classify their health and longevity.
Researchers at the Buck Institute have discovered a compound that slows bone loss in aging mice by up to 31% over the course of a year's treatment. The study provides a treasure trove of data for those studying aging and age-related diseases, including serially profiled individual mice as they aged while testing several therapeutics.
Researchers found that fruit flies' lifespan is shortened when given a choice of foods, which affects their metabolism and brain chemistry. The study's findings may have implications for human aging, as similar metabolic pathways exist in humans.
Researchers found that better glucose uptake in the brain compensates for age-related deterioration, leading to longer life. Improved neuronal glucose uptake also coupled with dietary restrictions showed enhanced lifespans.
Researchers successfully used DNA-editing to extend the lifespan of mice with progeria by correcting the accelerating aging disorder. The treatment restored normal DNA sequences in various organs and improved mouse lifespans from seven months to nearly 1.5 years.
Researchers at Osaka City University discovered that metolazone, a drug used to treat hypertension, activates a mitochondrial stress response that prolongs lifespan in the roundworm Caenorhabditis elegans. The study suggests that repurposing existing drugs for aging control may be possible.
The article emphasizes the importance of ensuring equity in hospital resource allocation during pandemics. Implementing protocols that account for the disproportionate impact on neonates and children is crucial. By doing so, healthcare systems can reduce disparities and improve outcomes for vulnerable populations.
A study analyzing global tree-ring datasets reveals that trees in tropical climates grow two times faster than those in temperate regions but have significantly shorter lifespans. Warmer temperatures above 25.4?C are associated with reduced tree longevity, likely due to water stress.
Research finds that tropical trees' lifespans decrease above 25 C, with implications for animal habitats, air quality, and carbon stocks. The study suggests that global warming will exacerbate tree mortality, affecting biodiversity and CO2 emissions.
A new study found that DNP treatment in zebra finches reduced their lifespan by 20% over four years. The birds showed no short-term adverse effects but suffered from accelerated aging, highlighting the need for more research on DNP's long-term safety.
According to a Georgia Institute of Technology researcher, shutting down fossil fuel power plants by 2035 may not require as many early closures as previously thought. By allowing existing plants to reach their typical lifespans, the cost of closure can be reduced and financial liabilities minimized.
A global study found that macronutrient supplies are associated with lower mortality rates across different age groups. The researchers discovered that the optimal diet composition for reducing mortality risk varies significantly depending on age, with specific ratios of proteins, fats, and carbohydrates recommended for each life stage.
Researchers found that extreme concentrations of serum uric acid (SUA) are associated with reduced patient survival and lifespan, particularly in men. The study suggests high SUA levels may be linked to serious chronic medical conditions such as kidney failure, hypertension, and cardiovascular disease.
A study of over 1.6 million chess moves reveals a hump-shaped curve in performance over the lifespan, peaking at 35 years old. Performance has improved significantly over the past 125 years, especially for younger players and those with increased experience.
Researchers Scott Glaberman and Ylenia Chiari investigate the relationship between body size and longevity in Galapagos tortoises. They hypothesize that enhanced ER stress responses contribute to the evolution of large body sizes and long lifespans.
Research on 200 million-year-old mammal teeth reveals they functioned like reptiles, living up to 14 years. Fossilized cementum rings were used to determine lifespan, contradicting previous warm-blooded mammal assumptions.
UC Riverside psychologist Chandra Reynolds leads a five-year research project to investigate cognitive stability and change across midlife transition in 1,400 participants. The study aims to identify predictors of cognitive maintenance, including genetic factors and lifestyle behaviors.
A new study found that humans exhibit slower epigenetic aging than chimpanzees, with certain DNA sites gaining or losing chemical tags in a clock-like pattern. The researchers analyzed over 850,000 DNA sites in blood samples from 83 chimpanzees aged 1 to 59 and found that aging leaves its mark on the chimpanzee genome, similar to humans.
A global study found that over 90% of conventionally farmed soils are thinning, with many having lifespans of less than a century. However, soils managed with conservation techniques tend to have longer lifespans, and certain practices like converting arable land to forest can help extend soil lifespan.
A double-blind study found that middle-aged mice treated with alpha-ketaglutarate had a significantly improved healthspan, experiencing fewer diseases and disabilities before death. The study suggests that AKG may suppress chronic inflammation, which is a major driver of aging.
A genetics study in wild turquoise killifish reveals that small population sizes contribute to the accumulation of harmful mutations, leading to shorter lifespans. The findings provide insights into how population dynamics influence aging and could inform new approaches to understanding human aging.
Researchers estimate COVID-19 mortality rates will cut lifespans by about a year, with 1 million deaths projected to reduce life expectancy by three years, while 250,000 deaths would have a more modest impact.
Researchers from University of Cambridge and Liverpool have identified a new degradation mechanism for electric vehicle batteries, leading to the development of strategies to improve battery lifespans.
Researchers at KAIST discovered that tweaking roundworm proteins can boost lifespan and activate AMPK, a key player in cellular energy monitoring. This mechanism may be applied to developing longevity-promoting drugs for humans.
Scientists identified two distinct aging paths in yeast cells, with one due to nucleolus decline and the other due to mitochondrial dysfunction. By understanding this master circuit, researchers developed a novel approach to extend lifespan through genetic programming.
Scientists identify ten regions of the genome linked to long lifespan, healthspan, and longevity, finding a potential link between iron metabolism and healthy aging. The study's findings suggest that maintaining healthy levels of iron in the blood could be key to slowing aging and living longer.
Researchers found that the drug mifepristone blocks inflammation and reduces health decline in female fruit flies after mating, leading to longer lifespans. This effect is similar to what happens in women who take the drug, suggesting it may also extend human lifespan.
A study of fruit flies has found that analyzing small molecules involved in cell metabolism can help understand how calorie-restricted diets affect aging and lifespan. The research identified several genes linked to changes in metabolite levels, shedding light on the complex interplay between genetics, environment, and diet.
A new USC-led study demonstrates that the peptide humanin, found in mitochondria, is closely correlated with longer lives and better health in both animals and humans. Higher levels of humanin have been observed in organisms with lower risk for age-related diseases such as Alzheimer's.
Researchers found that female mice mated with sterile male mice experienced a growth-reproduction trade-off, resulting in weight gain and increased reproductive output in late life. However, this also led to a reduced lifespan compared to those housed with other females.
A new University of Otago study found that mating with sterile males early in life increases female growth but reduces lifespan. Mating with fertile males later in life has the opposite effect, increasing reproductive output. The findings suggest long-term consequences of social interactions between males and females.
A study by University of Utah Health found that genetic mutations accumulate at an accelerating rate during puberty, affecting lifespan and fertility. Young adults with slower rates of mutation accumulation lived about five years longer than those with faster rates.
Researchers at Tokyo Institute of Technology found that Kabuki actors had shorter lifespans compared to other traditional arts performers who led sedentary lifestyles. The study suggests that excessive endurance training and physical activity may overwhelm the beneficial aspects of regular exercise.
Research involving 160 genetically distinct strains of fruit flies found that while dietary restriction extended lifespan, its effect on healthspan was less consistent. The study suggests that healthspan, rather than just lifespan, should be the primary focus for those seeking to improve aging outcomes.
Researchers found that death is preceded by accumulation of reactive oxidative species (ROS) in the gut, which can be neutralized to prevent premature death. The study on fruit flies suggests a key role for the gut in causing death from sleep deprivation, and may inform future efforts to address its detrimental effects in humans.
A research team has identified a powerful self-corrective mechanism within synapses that slows down disease progression in animal models of ALS. This mechanism is activated by neurodegeneration and acts to keep the synapse between nerve and muscle working correctly, even though the disease process has already begun to nibble away at it.
Researchers at Clemson University have discovered that the genetic architecture of life span is context-dependent, with different genes and variants having varying effects on males and females and environmental temperatures. The study uses the Drosophila melanogaster model to provide valuable insights into human aging.
A new study suggests that rare, damaging inherited mutations can have a significant impact on an individual's healthspan and longevity. Researchers found that people with more ultra-rare protein-truncating variants (PTVs) had shorter lifespans and healthspans, with each additional variant accounting for a six-month reduction in lifespa...
Chimpanzee cortisol levels increase with age, blunting natural diurnal rhythm and responding to stressors similarly to humans. Sex differences also emerge, with males exhibiting higher levels than females, particularly when exposed to attractive females.
A new study reveals that female wild mammals live 18.6% longer than their male counterparts, contrary to the human lifespan difference of 7.8%. This phenomenon is likely due to differences in energy allocation and physiological characteristics between sexes.
A study of 101 wild mammal species found that females lived 18% longer than males for over 60% of the species, with a similar gap in humans. The researchers suggest complex interactions between environmental conditions and sex-specific costs of reproduction may contribute to this phenomenon.
Research compiled demographic data for 134 populations of 101 mammalian species, finding that 60% of female mammals live longer than males. Mortality risk is lower among females at all ages, but the rise in mortality with age varies between sexes.
A study examines the impact of sex on the lifespan and aging rate of mammals. Wild female mammals have an average 18.6% longer lifespan than their male counterparts in 60% of analyzed populations.
Researchers analyzed genetic and clinical data to find that high blood pressure and obesity significantly reduce lifespan, particularly in European ancestry populations. The study, published in Nature Medicine, identifies these traits as major contributors to reduced human lifespan.
A recent study by Penn State researchers found that communities with more fast food restaurants, higher population density, and jobs in the extraction industry have shorter life expectancies. Conversely, areas with growing populations, good access to physicians, and high social cohesion tend to have longer lifespans.
A new study by Penn State researchers found that community characteristics play a significant role in determining life expectancy, with factors such as fast food restaurants, population density, and jobs in the extraction industry negatively affecting lifespan. Conversely, social capital, good access to physicians, and lower population...
A study analyzing data from 49 countries and regions found that increased lifespan equality is associated with higher life expectancy. High reductions in mortality at young ages contribute to both increased life expectancy and greater lifespan equality.
Researchers found that a mere four glial cells in the worm's brain control the stress response in cells throughout its body, increasing lifespan by 75%. This discovery suggests that brain cells may play a crucial role in protecting muscles from wasting away, and potentially lead to new treatments for muscle atrophy and obesity.
Researchers at MDI Biological Laboratory identify two major pathways governing aging in C. elegans, which when combined, amplify lifespan fivefold. This discovery could lead to the development of combination therapies to extend human healthy lifespan.
The Breakthroughs in Gerontology (BIG) Awards support research into human aging and healthspan. Ursula Jakob will study early epigenetic events that extend lifespan, while Norbert Perrimon will investigate organ communication networks influencing aging.
A study in Scientific Reports presents a genetic model that accurately estimates lifespans of different vertebrate species by analyzing 42 selected genes and their CpG sites, which are correlated with lifespan. The 'lifespan clock' reveals high predictive power for various species, including extinct ones.
A study on killer whales found that grandmothers play a crucial role in improving the survival of their grandoffspring. The research suggests that postreproductive females can better provide care due to not having reproductive pressures, potentially contributing to the long lifespan of killer whales.
Researchers at the University of Michigan discovered that oxidative stress in early life increases subsequent stress resistance later in life. Oxidative stress, which occurs when cells produce more oxidants than they can deal with, is part of the aging process but can also arise from stressful conditions.
Researchers found that prolonged blue light exposure damages brain and retinal cells, leading to impaired locomotion in Drosophila melanogaster. Flies without eyes also showed damage, suggesting blue light's harmful effects extend beyond visual perception.
Researchers used a grip-force test to analyze sensorimotor function in people with the FMR1 premutation, identifying subtle symptoms and potential indicators of disease progression. The study aims to improve early diagnosis and treatment for Fragile X-associated tremor/ataxia syndrome (FXTAS) in at-risk individuals.
Researchers have discovered a causal link between high blood pressure, obesity, and reduced lifespan in a massive genetic analysis of 700,000 individuals. By analyzing polygenic risk scores, the team identified blood pressure and obesity as key drivers of human longevity.
Researchers found that suppressing neural overactivity extends life span in humans, while excessive activity is linked to shorter life spans. The study suggests a role for the protein REST in modulating neural activity and activating a longevity pathway.
Researchers at MDI Biological Laboratory have identified post-transcriptional regulation mechanisms governing longevity, which will aid in screening for new therapies. The study uses C. elegans worms and dietary restriction to understand the genetic complexity of aging.
The University of Warwick has developed a new theory to accurately predict the lifetime of evaporating liquid droplets, which can be exploited for engineering design. The research reveals fascinating new physics in vapour flow, including jumps in temperature across just a few molecules.
A triple drug combination of lithium, trametinib, and rapamycin has been shown to extend the lifespan of fruit flies by 48%, a significant increase compared to previous studies. The treatment targets different cellular processes and may have potential benefits for preventing age-related diseases in humans.