Articles tagged with Life Span
A new study from the Max Planck Institute for Biology of Ageing suggests that a combination of proteins is crucial for healthy aging, not reducing overall calorie intake. Researchers found that manipulating the diet of female fruit flies showed varying results depending on the type and amount of amino acids consumed.
A new company, Cogniciti, is being formed by Baycrest Centre for Geriatric Care and MaRS to develop brain fitness products. The company will produce games, training protocols, and corporate training programs grounded in 20 years of aging brain research.
Humans uniquely susceptible to aging diseases due to genetic adaptations to inflammation and high cholesterol diets. The 'meat-adaptive gene' ApoE3 may contribute to human lifespan, while ApoE4 impairs neuronal development and shortens lifespan by four years.
A new study funded by the Wellcome Trust suggests that getting the correct balance of proteins in our diet may be more important for healthy ageing than reducing calories. Researchers found that varying the amount of amino acids in a diet can affect lifespan and fertility, with certain amino acids being crucial to maximising both.
Researchers found female mice created from two mothers but no father lived significantly longer than normal mice, living up to a third longer on average. The findings suggest that sperm genes may have a detrimental effect on lifespan in mammals.
Researchers found that a lower-calorie diet slows development of age-related conditions such as Alzheimer's disease, while a high-calorie diet accelerates oxidative stress. Dietary restriction activates transcription factor CBP, which regulates cellular function.
Scientists discovered that adding glucose to worms' diet reduces their life span by 20%, suggesting a possible link between sugar and human aging. The study highlights the importance of insulin signaling pathways in regulating life-extending molecular players.
Scientists extend mice lifespan by up to a fifth and reduce age-related diseases through blocking key molecular pathway, mirroring health benefits of calorie restriction. The study suggests that drug treatments targeting the S6K1 pathway may be feasible, building on existing research on calorie restriction's potential for human longevity.
Research by Stony Brook University researchers found that temperature explains much of the geographic variation in lifespan within species. For a diverse range of species, ambient temperature is the dominant factor controlling lifespan.
A study of rhesus macaques has shown that consuming fewer calories leads to a longer, healthier life, with a reduced risk of age-related diseases such as cancer, diabetes, and cardiovascular disease. The diet also preserved brain health, particularly in regions responsible for motor control and executive functions.
Researchers discovered that a compound found in Easter Island soil, called rapamycin, extended the lifespan of middle-aged mice by 28-38% when added to their diet. The findings have significant implications for understanding the aging process and developing new therapies.
Researchers found that long-lived bats have a resistance to protein folding damage, which explains their extended lifespan. This discovery may lead to therapies that slow down human aging.
Scientists at the Salk Institute have identified a pivotal role for two enzymes, WWP-1 and UBC-18, in regulating lifespan in response to diet restriction. The study found that overexpressing WWP-1 extends lifespan in worms, while depleting UBC-18 negates the effects of caloric restriction.
Researchers at MIT identified the cause of concrete creep and found a way to slow its rate, enabling ultra-high-density materials that can last hundreds of years. This breakthrough could lead to enormous cost-savings and reduced CO2 emissions in construction.
Researchers found that certain genetic mutations known to extend the lifespan of C. elegans roundworms induce somatic cells to express genes allowing reproductive germline cells' immortality. This discovery may lead to therapies protective against age-related decline in other tissues.
Researchers have developed a mouse model of Wolfram Syndrome, linking CISD2 gene function to mitochondrial integrity and aging. CISD2-deficient mice display premature aging, decreased body weight, and degeneration of optic and muscular tissues.
Researchers have discovered that yeast cells can extend their lifespan by up to 5-fold when converted to use glycerol instead of glucose for energy, offering an alternative to caloric restriction. This metabolic switch also enhances the cells' resistance to damage and may provide insights into human aging.
A new study finds that women who have babies in their 40s or 50s tend to live longer than other women, and their brothers also live longer, but not their wives. The study suggests that genes may play a significant role in prolonging lifespan and female fertility.
Researchers found that acetylation affects yeast lifespan through the NuA4 enzyme complex, which also controls sugar production in cells. This discovery may have implications for understanding aging and human diseases, as the mechanisms identified are conserved across species.
Researchers linked circadian clock to SIRT1 and NAD levels, revealing a biochemical mechanism that drives metabolic disorders. The study finds potential new avenues for treating age-related disorders and restoring healthy daily rhythms.
A recent study published in Physiological and Biochemical Zoology found that mice with increased metabolism live just as long as those with slower metabolic rates, casting doubt on the rate-of-living theory. This contradicts the idea that faster living animals die young.
A study on seed beetles found that inbreeding extends male lifespan while shortening female lifespan. The researchers suggest that sex-specific selection may be the underlying cause of these differences.
Researchers discovered a way to reduce free radicals and oxidative damage in genetically altered fruit flies, leading to increased lifespan. The finding could lead to the development of new anti-aging treatments without genetic manipulation.
A new study found that caloric restriction does not extend the life of lean mice, contradicting previous findings. Obese mice, however, benefited from caloric restriction, suggesting it may be a useful strategy for weight loss. The researchers propose that energy expenditure and intake should be in balance.
Research presented at the American Society for Cell Biology conference reveals a modular longevity network linking diet and metabolic genes to human cellular aging. Novel anti-aging small molecules have been identified, which can be used as research tools or potential pharmaceutical agents for age-related disorders.
A study by USC biologists found that older female flies can live 5-30% longer and produce more offspring when altered to over-express specific genes. This challenges the long-held idea of a tradeoff between reproduction and longevity.
Researchers found that blocking worms' sense of smell extends their lifespan by up to 29% with the anticonvulsant drug ethosuximide. This suggests a link between sensory perception and metabolic regulation, potentially applicable to human aging.
Researchers discovered that a family of ascarosides controls both sexual attraction and long-lived dauer larva stages in C. elegans worms. This finding represents the first direct link between reproduction and lifespan through small molecules.
Resveratrol slows age-related deterioration and functional decline in mice, improving cardiovascular function, bone health, and motor coordination. However, it does not increase longevity when started at middle age.
Researchers at UT Southwestern Medical Center discovered that FGF21 blocks the effects of growth hormone, potentially extending life span. The study found genetically altered mice with resistance to growth hormone produced greater amounts of growth hormone.
Researcher Don Luckey suggests that low-dose radiation could be beneficial for human health, citing studies that show improved growth rates, reduced cancer mortality and increased lifespan. He argues that humans have evolved to live with ionizing radiation and that greater exposure would improve our health.
Researchers analyzed DNA haplotype data from Iceland's genealogical database to identify the origin of hereditary cystatin C amyloid angiopathy (HCCAA). The study found that carriers lived a normal life span for 200 years before experiencing shortened lifespans, highlighting the impact of dietary changes on the disease.
The discovery of Eoconfuciusornis zhengi provides evidence for the evolution of Confuciusornithidae family and its link to early avian flight. The fossil's unique features, such as increased deltopectoral crest size and keel, indicate a significant adaptation for improved flight capabilities.
A mathematical model suggests that intelligent life emerging on other planets is low due to the short life span of Earth. The model, developed by Prof Andrew Watson, estimates the probability of each critical step occurring as 10% or less over four billion years.
A study of 418 English test cricketers found that players who appeared in more test matches lived longer than those with fewer appearances. Captaining the team had no impact on lifespan, contrary to expectations.
Researchers investigated how genetic background and environmental factors impact NPC disease in mice. Results show a wide range of lifespan outcomes, averaging from 50-130 days, suggesting complex interactions between genetics and environment.
Researchers at PNNL present advances in coal gasification technology that could increase efficiency and safety, enabling carbon capture and sequestration technologies. The technology has the potential to play a critical role in securing domestic sources of transportation fuels and meeting growing demand for clean energy.
Scientists at the University of Southern California have achieved a 10-fold life span extension in baker's yeast through dietary and genetic changes. The study, published in PLOS Genetics, suggests that calorie restriction and specific gene mutations may hold the key to controlling cell longevity and preventing age-related diseases.
A University of California, Irvine study found that Rhodiola rosea increases the lifespan of fruit flies by an average of 3.5 days in males and 3.2 days in females. The herb has been shown to have anti-oxidative properties and is thought to boost the body's response to stress.
Researchers found that activating a protein in muscle tissue increased average lifespan and prevented some age-related diseases in mice. The protein, uncoupling protein-1, converts energy from food into heat and mimics the effects of exercise.
A team of scientists has discovered that the antidepressant drug mianserin can extend the lifespan of adult roundworms, Caenorhabditis elegans, by about 30 percent. The drug may act by mimicking the effects of caloric restriction, which has been shown to retard the effects of aging in various animals.
A Buck Institute study found that lithium increases lifespan in nematode worms by reducing the activity of a gene that modulates chromosome structure. The research highlights the potential for using C. elegans as a model organism to study drug toxicity and genetic impacts of compounds.
Scientists at UCSF have identified naturally occurring processes that allow multiple genes to slow aging and protect against cancer in the C. elegans roundworm. The study suggests that cellular changes leading to longevity antagonize tumor cell growth and highlights a deep evolutionary connection between lifespan and cancer.
Researchers found that a decrease in p53 activity in only 14 insulin-producing cells in the fly brain can significantly extend lifespan, supporting the link between metabolic regulation and aging. The findings also suggest a connection between aging and diabetes, providing a new laboratory model for studying these diseases.
Researchers show that traditional mating patterns make men essential to understanding the 'wall of death,' a puzzle in human lifespan. Men's reproductive patterns differ from women's, with earlier and more gradual decline after female menopause.
Researchers found that aging flies accumulate significant amounts of bacteria both inside and out, yet this does not affect their longevity. The study suggests that the energy spent fighting bacteria is not at the expense of overall health.
A study by University of Southern California researchers found that bacteria-free fruit flies lived as long as their bacterial counterparts, challenging conventional wisdom about the impact of microbes on lifespan. The finding suggests that factors other than bacterial load may limit life span.
A study published in Science found that maintaining a healthy lifestyle through diet and exercise can extend lifespan by reducing insulin-like signaling in the brain. The researchers discovered that mice with reduced insulin receptor substrates lived 18% longer, while also showing improved metabolic health.
A study published in Aging Cell found that male mice fed a normal diet and NDGA showed significantly longer survival than control mice. However, no significant difference was observed in female mice. The researchers are now conducting further studies to confirm the results and determine the potential of NDGA as an anti-aging agent.
Researchers at Dartmouth Medical School have discovered a vitamin that extends lifespan in yeast by activating an anti-aging gene product. The study found that providing this newly discovered vitamin, NR, activates Sir2, which resembles sirtuins found in humans and is involved in longevity and energy expenditure.
Researchers at Research Australia have made a major breakthrough in understanding how platelet life span is controlled. By regulating apoptosis, two specialized molecules can extend or shorten platelet lifespan, opening up new possibilities for improving patient care and managing diseases such as cancer and blood clots.
A recent study found that caloric restriction can reduce oxidative damage in muscle cells and improve mitochondrial function. The researchers discovered that limiting calorie intake without malnutrition can slow aging and delay the onset of age-related diseases.
A new model proposes that sexual differentiation may exact a high biological cost, reducing function of mitochondria and influencing longevity. The model predicts which genes regulate life span and suggests testable hypotheses for exploring the biggest question in aging research.
Researchers discovered that exposure to food odors in fruit flies can reduce their lifespan and partially reverse the effects of dietary restriction. The study suggests that our sense of smell may play a role in human longevity.
Fruit flies exposed to yeast paste odor did not live as long as calorie-restricted insects without the odor, suggesting that reduced perception plays a role in extending lifespan. The study found that flies with impaired sense of smell lived up to 57% longer and were more stress-resistant.
Researchers at Scripps Research Institute discovered that lowering core body temperature extends lifespan in mice, independent of calorie restriction. The study found a significant increase in median lifespan, with females living up to 20% longer and males by 12%.
Researchers used resveratrol to increase the lifespan of obese mice, reversing nearly all changes in gene expression patterns linked to diabetes and heart disease. The study also found improved motor skills and quality of life in mice treated with resveratrol, suggesting potential therapeutic applications for age-related diseases.
Researchers found that naked mole-rats have higher levels of oxidative stress and damage than mice, contradicting the oxidative stress theory of aging. The study suggests that the mole-rat's longevity may stem from its ability to defend against acute bouts of oxidative stress.
Sirtuins have been implicated in the health benefits of calorie restriction, which is known to lengthen life span. The discovery reveals that sirtuins directly control specific metabolic enzymes called AceCSs, transforming them into a form that allows the body to utilize acetate as an energy source.
Researchers at the University of Rochester Medical Center have made a groundbreaking discovery about the relationship between stress response and insulin regulation in flies. By boosting a molecular signal called JNK, they found that flies can live up to 85 days longer, opening up new avenues for understanding human diabetes and aging.