Articles tagged with Life Span
Researchers from Ruhr-Universität Bochum used data from the Astrophysical Journal to determine the age of the star, finding it had formed at the same time as our galaxy. The dual star system's companion star transferred matter to 49 Lib, causing incorrect age estimates.
Researchers found that a high-sugar diet programmed flies' genes for longevity, causing long-term effects even after a healthy diet. The study suggests that dietary history has a lasting impact on health and may have implications for human lifespan.
Researchers found a balance between two genes, spns1 and atp6v0ca, that maintains normal cell function. Disrupting one gene can induce premature aging, while the other can suppress degradation, extending lifespan in zebrafish.
A recent study by Brown University researchers has found that the RNA pathway operates in a non-reproductive body tissue, called the fat body, in flies and helps sustain life. The study also shows that blocking components of the pathway leads to increased DNA damage, shorter lifespan and poor health.
Researchers discovered a correlation between starvation and shortened telomere lengths in men born after the mass famine of the early 1920s. The team found that these shorter telomeres were stable in ensuing generations, suggesting a potential impact on male lifespan.
A new study of mortality patterns in humans, monkeys, and apes reveals that men have yet to catch up with women in terms of life expectancy. Despite advances in medicine and public health, the gender gap remains unchanged, with females outliving males across all primate species.
Researchers found a mathematical relationship between life expectancy and the convergence of ages at death, observed in various countries, historical periods, and populations. This rule suggests that fewer people are dying prematurely and living beyond average age of death as life expectancy rises.
A new study from Massachusetts General Hospital finds that cigarette smoking significantly reduces the lifespan of people living with HIV in the U.S., potentially even more than HIV itself. Quitting smoking can greatly increase lifespan and is never too late to quit.
Research by the universities of Exeter and Stirling found that well-fed male crickets call for longer periods, increasing their mating prospects. This approach, not a strategic decision, led to better-provisioned crickets attracting more female visitors and surviving longer.
Einstein researchers conclude that the maximum human lifespan has already been reached at 115 years, with a possible limit of 125 years. This finding suggests that further advances in medicine may not extend human lifespan beyond this point.
A new study strengthens the links between transposons and aging, showing that increased transposon activity correlates with decreased lifespan in fruit flies. The study also reveals that manipulating genes involved in heterochromatin repression can lengthen lifespan, suggesting a potential therapeutic target for age-related diseases.
A new study from Michigan Medicine reveals that the brain chemical serotonin guides fruit flies' protein-rich food choices, which can affect their lifespan. The research found that blocking serotonin's reward system extended the flies' lifespan by nearly twice as long.
A Penn study identifies Morrbid, a special RNA molecule, as key controller for immune health when fighting infection or preventing inflammatory disorders. The discovery offers a potential drug target for several inflammatory disorders characterized by an abnormal lifespan in white blood cells.
A team of marine biologists from the University of Copenhagen has used carbon-14 dating to estimate the lifespan of Greenland sharks, finding that they live for at least 272 years. This method was previously only used in archaeological contexts, but is now being applied to fish biology due to the species' extraordinary longevity.
Decades of research on nearly 200,000 survivors and their children reveal cancer rates are not as dire as previously thought. Cancer incidence among survivors was only 10% higher than non-exposed populations, with most receiving a relatively modest dose of radiation.
Researchers use roundworms to identify chemicals that can delay aging effects across multiple organisms. Thioflavin T, a commonly used lab dye, is found to lengthen lifespan in various species.
Researchers found that women generally outlive men across multiple species, with a ubiquity of survival advantage. However, they also appear to be in poorer health through adult life, with higher rates of physical limitations and health problems like osteoarthritis and back pain.
The MDI Biological Laboratory will host a lecture series on the science of aging, featuring leaders in the field who will discuss life-extending treatments and cellular recycling processes. The lectures will explore how these advances may lead to therapies that prolong healthy lifespan and address age-related diseases.
A centuries-old database was used to study reproductive patterns and parental investment, revealing that parents and offspring do not have similar lifespans or reproductive success. Siblings who share the same mother and father exhibit similar lifespans and reproductive success, suggesting a balance between investment and reproduction.
Scientists at UC Berkeley have identified a key epigenetic switch that increases lifespan in mammals, offering hope for new treatments to improve human metabolic function. The discovery was made in the nematode worm C. elegans and found to be linked to increased lifespan in mice.
A study of 140,600 individuals from the Utah Population Database found that lowered birth rates contribute to women's longer lifespan compared to men. The research suggests that reduced reproduction costs in females benefit their lifespan.
A USC-led study found that Americans are living longer but with poorer health, as disability rates increased over a 40-year period. The average lifespan for men and women both increased, but the proportion of time spent living with a disability also rose.
A new study finds that the richest 1% of Americans live significantly longer than the poorest 1%, with a growing gap over the last 15 years.
A recent study by University of Edinburgh researchers has identified two genetic variants that can cut a person's lifespan by up to three years. The variants, which are relatively common in the population, have been linked to an increased risk of lung cancer and severe respiratory problems as well as Alzheimer
An international team at the MDI Biological Laboratory is studying the role of dietary restriction in extending human lifespan. Researchers are investigating how lower amounts of food or food with lower energy content affect molecular regulators of gene expression, a key player in aging.
Researchers found that hermaphrodite nematodes, which self-fertilize, have significantly shorter lifespans than their female relatives. The study suggests that early reproduction and potential damage from mating may contribute to the decreased lifespan in hermaphrodites.
Scientists at Sanford Burnham Prebys Medical Discovery Institute have identified ARGK-1 as a protein that can extend the natural lifespan of C. elegans by increasing energy regulation within cells. This finding may lead to new avenues for delaying human age-related diseases such as cancer and neurodegenerative disorders.
A new study found that differences in gene expression patterns in youth can predict longevity. Genes involved in energy production are less active, leading to longer lifespan. Researchers also discovered a potential link between mitochondrial function and longevity.
A new study from Michigan State University finds that fat cells, not lean cells, have a longer lifespan. The researchers used yeast to demonstrate that increasing the cellular content of triacylglycerol, or fat, extends lifespan. This finding supports the obesity paradox theory and has implications for human aging and health.
A recent Brown University-led study has resolved long-standing discrepancies in research on aging by identifying the human chemotherapy drug FUdR as a key factor. The study found that FUdR triggers stress response and DNA repair pathways in C. elegans worms, allowing them to better endure adverse conditions and lengthening their lifespan.
A new study found that dietary and pharmaceutical interventions can have opposite effects on mortality rates in males versus females. The findings support the theory that the sexes age differently, with some interventions increasing longevity in females but decreasing it in males.
Research at Duke University reveals that larger rolling stones and turbulent eddies exhibit the same life span, travel distance, and number of revolutions as smaller counterparts. The findings demonstrate the constructal law's applicability to non-biological systems, challenging traditional views on evolution.
A new study suggests that the menopause evolved as a result of a combination of factors, including the 'grandmother hypothesis', which proposes that women live long past reproductive age to care for their grandchildren. The study also found that males who remained at home provided an adaptive benefit by allowing females to focus on rep...
Research published in The FASEB Journal found that prunetin, a plant-derived compound, prolongs lifespan and enhances overall health in male fruit flies by increasing glucose balance and fitness levels. The effect was not observed in female fruit flies.
A Penn study shows that knocking out a key gene during development accelerates aging and shortens lifespan by two thirds in mice, but delaying the deletion until after birth eliminates this effect. The findings highlight the need to understand the role of clock genes during development.
Researchers at Mayo Clinic have found that eliminating senescent cells in mice can delay tumor formation, preserve tissue function, and increase lifespan. The study's results suggest that targeting these cells could lead to new therapies against age-related disabilities and diseases.
A study found that individual risk-taking propensity is subject to change throughout life, especially in domains of work and recreation. Women are less prone to take risks than men across the lifespan, while openness to experience and extraversion are associated with increased risk-taking propensity.
Researchers have found age-dependent alterations in metabolism and gene regulation in middle-aged fruitflies, linked to a reduction in lifespan. The study identified a common process of protein acetylation as a key factor in the aging process.
A study published in Nature suggests that aging does not have a single molecular cause but is rather a systemic process. Researchers found a statistical regularity in how genetic and environmental factors affect the life span of Caenorhabditis elegans worms, revealing an unexpected uniformity among life span distributions.
A new study reveals that blocking the production of a naturally occurring protein responsible for transporting fats around the body increases life span in nematodes and mice. The research suggests that this protein, VIT, hinders essential cell functions and prevents the reuse of fats for healthier purposes.
A new study investigates the relationships between genetic background, physical activity level, and lifespan. The findings reveal that same genetic factors affect physical activity level, aerobic capacity, and lifespan in both animal models and human twins. Voluntary running improved glucose metabolism but did not increase lifespan in ...
A new Canadian guideline provides recommendations for diagnosing fetal alcohol spectrum disorder (FASD), a neurodevelopmental disorder resulting from prenatal alcohol exposure. The guideline recommends counseling women and their partners about abstinence during pregnancy, screening pregnant women for alcohol use, and conducting complet...
Researchers discover regulatory mechanism that extends 'healthspan', the time an organism is at its optimal health, using C. elegans roundworms. Maximum velocity (MV) of wild-type worms at day 9 adulthood reliably predicts longevity and physical decline.
A new supplement published by the NIH details a research strategy to tackle global brain disorders, which affect millions worldwide. The initiative aims to improve diagnosis, treatment, and prevention of conditions such as depression, dementia, and substance abuse in low- and middle-income countries.
Scientists at Sanford Burnham Prebys Medical Discovery Institute have identified a mechanism by which secreted proteins age and turnover, shedding light on health and disease. The discovery highlights the importance of N-glycan remodeling and lectin recognition in regulating protein abundance.
Researchers at UCSB have discovered a mechanism by which secreted proteins age and turn over, shedding light on a crucial aspect of health and disease. The discovery identifies over 600 proteins with molecular signs of aging and turnover, including regulators of proteolysis, blood coagulation, and immunity.
Researchers used Caenorhabditis elegans worms to develop a method to predict lifespan based on metabolic profiles. The study found that middle age was a key turning point in aging, with normal lifespan worms aging 40% faster than long-lived counterparts at this stage.
Researchers at the Buck Institute have identified 238 genes that, when removed, increase the replicative lifespan of yeast cells. The study also reveals a link between these genes and caloric restriction, DNA damage control, and age-extending pathways in higher organisms.
Researchers at Uppsala University have developed an anti-aging treatment for smart windows by rejuvenating electrochromic layers, reducing their lifespan. The new method could also be applied to electric batteries, making them more profitable.
A study of 1.17 million patients on dialysis found that tallness was associated with higher premature mortality risk and shorter life spans, especially in white, Asian, and American Indian/Alaskan native patients. The association persisted even after adjusting for concurrent illness and care differences.
Researchers found a network of DNA sequence variations associated with high survival rates among long-lived smokers, suggesting that genetics play a role in stress resistance and genomic stability. These genetic markers were also linked to a nearly 11% lower cancer prevalence.
A recent study suggests that grandmothering played a crucial role in the development of human pair bonds, which distinguish us from other primates. With increasing human longevity, grandmothers helped feed their weaned children, allowing their daughters to have more kids and passing on genes.
A team of scientists has discovered that gene regulatory networks are inherently unstable, leading to aging and disease. Stabilizing these networks could lead to therapies against age-related diseases and increased lifespan.
Experiments with yeast and worms found that incorrect gene expression is a hallmark of aged cells. Reducing such noise extends lifespan in these organisms, with a 30% increase in some strains. Researchers are now investigating the potential for this longevity pathway to be applied to mammalian cells.
A special issue of Cell Stem Cell highlights the biology of aging and sex differences in stem cell behavior. Research suggests that estrogen may play a role in increasing lifespan in females, while testosterone may have different effects on males. Scientists are also exploring ways to model late-onset conditions using stem cells.
A recent study by UC San Diego researchers found a correlation between CD33rSIGLEC gene copy number and maximum lifespan across 14 mammalian species. Mice lacking this gene also showed signs of accelerated aging and higher levels of reactive oxygen species.
Researchers at USC discovered a compound that extends the life span of female fruit flies by 68%, challenging existing methods used to study genetic causes of aging. The finding opens up new avenues for investigating longevity and identifies potential candidate genes and mechanisms.
Researchers discovered that mild malaria infections in birds accelerated telomere shortening, leading to premature death. Infected individuals produced fewer offspring despite no visible symptoms.
A UMass Medical School study found that long-lived C. elegans mutants spend more time in a frail state than healthy ones, challenging the assumption that longevity and health are linked. The researchers identified genes that control 'healthspan' as separate from those influencing lifespan.
Research published in the journal PLOS Genetics reveals that regular doses of ibuprofen extended the lifespan of multiple species by 15%, potentially adding a decade or more to healthy living. The study's findings suggest that common drugs like ibuprofen may hold key to understanding and extending human health span.