Articles tagged with Life Span
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.
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 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.
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.
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 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 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 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.
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.
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.
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 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.
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 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.
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.
A study published in PLoS Genetics found that ibuprofen extended the lifespan of yeast, worms, and fruit flies, with treated organisms living up to 15% longer. The research suggests that ibuprofen impacts a process not yet implicated in aging, offering a new approach to studying and understanding the aging process.
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.
Life expectancies for black people are shorter and more uncertain than those of whites. Researchers found that higher rates of white deaths among the young offset the higher homicide rates among blacks. Targeted interventions for sex and race may help reduce the disparity in lifespan variability.
A study combining data from 12 British studies found that men are stronger than women after adolescence, but both reach peak strength in their thirties before weakening with age. The research provides reference charts for grip strength at different ages, aiding the identification of weak grip strength and potential health risks.
A study found that female flies live longer than males when subjected to mate competition and juvenile survival pressures. The research suggests that the sexes respond differently to selection regimes, with males being more affected by natural and sexual selection on their lifespan.
Researchers propose a new strategy for preventing age-related diseases, focusing on treating metabolic and molecular causes. They suggest lifestyle interventions such as personalized diets and exercise programs to delay chronic disease onset.
A study found that oral contraceptive users have significantly lower measures of ovarian reserve compared to non-users, with a marked suppressive effect on anti-Mullerian hormone and antral follicle count. The results suggest that women taking the Pill may need more frequent assessments of their reproductive status.
Researchers reconstituted VcINDY into liposomes to analyze its properties as a transporter, providing insights into the cellular level functionality of SLC13 transporters. This study paves the way for targeting these transporters to combat metabolic disease and obesity.
The American Aging Association Meeting presented new findings on the role of mTor in aging, as well as insights into the impact of circadian rhythms on lifespan. Researchers also explored the potential of the FAT10 gene and its role in aging research.
A study found that metformin causes an increase in toxic oxygen molecules, which surprisingly increases cell robustness and longevity. Cells use these particles to their advantage, extending healthy lifespan.
A new Rotman study found that marketing strategies should consider the consumer life-cycle when targeting technology adoption. The research reveals that older consumers may face limited future benefits, but can be encouraged to adopt new technologies through targeted incentives.
Researchers discovered that blocking pain receptors, specifically TRPV1, can extend lifespan in mice by promoting a youthful metabolism and reducing the risk of age-related diseases like diabetes. The study also found that diets rich in capsaicin, a compound found in chili peppers, may help improve metabolic health and longevity.
Researchers have found that blocking a pain receptor in mice extends their lifespan and boosts their metabolism, including an improved insulin response. This discovery provides potential insights into treating obesity and diabetes, as well as improving metabolic health.
Researchers aim to develop drug candidates that could reverse effects of poor early diets, potentially improving human healthspan. Early nutrition plays a critical role in lifelong health, with imbalanced diets during childhood increasing risk of obesity, diabetes, and heart disease.
Researchers found that suppressing taste buds in fruit flies can significantly increase or decrease lifespan and potentially promote healthy aging. Bitter tastes had negative effects on lifespan, while sweet tastes had positive effects, particularly for water taste.
A Penn-led study reveals a new molecular circuit controlling longevity in yeast and complex organisms, which may offer a therapeutic intervention to mimic caloric restriction's lifespan-enhancing effects without dietary restrictions. The findings suggest a potential strategy for combating aging-related disorders in humans.
A new experimental drug has been developed that inhibits the aging protein PAI-1, quadrupling the lifespan of rapidly aging mice. The drug, TM5441, also protects organs from accelerated aging and may one day be used to treat human diseases like chronic kidney disease and diabetes.
Researchers found that regular churchgoers, married people, and those with harmonious social ties are most satisfied with their love lives. The study also revealed that education does not impact love life satisfaction but religious involvement does, with believers having positive attitudes towards their relationships.
A recent study found that glucosamine supplementation extended the lifespan of nematode worms by 5% and ageing mice by almost 10%, promoting glucose metabolism and protection against diabetes. This effect is comparable to a low-carb diet, suggesting a potential health benefit for humans.