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Tag: "aging" at biology news

Chemical compound inhibits tumor growth, size in new mouse study

...ction also occurs in the human body as part of the aging process, in tanning, hardening of the arteries, an...ction also occurs in the human body as part of the aging process, in tanning, hardening of the arteries, and diabetes as well as other diseases. "The polyp...

Anti-cancer drugs may hold promise for premature aging disorder

...tion and show dramatically accelerated symptoms of aging -- namely hair loss, skin wrinkling and fat loss. ...rch in the first place were the potential links to aging and atherosclerotic disease," said Capell. Indeed, understanding progeria at the molecular level may...

Breaking the mold: Research teams sequence three fungus genomes

...s infections as they become more prevalent in the aging population," predicts first author William Nierman, a microbiologist at TIGR. Nierman co-authored two additional Aspergillus genome papers in the same issue of Nature. One describes a genome project on Aspergillus oryzae , a nonpathogenic food in...

Evolutionary conservation of a mechanism of longevity from worms to mammals

Though the study of aging in the nematode model organism C. elegans has prov...ess, it is not yet clear whether genes involved in aging in the worm have a similar role in mammals. In a recent study, Dr. Hekimi and colleagues of McGill ...

Gene Expression in the Aging Brain

...netic limits to longevity. One prominent theory of aging lays the blame on the accumulation of damage done ...olves different genes—is found in the brain of the aging chimpanzee. The authors compared results from three separate studies of age-related gene expression...

Navigating the brain for sense of direction as paradigm for higher cognitive functions

...netic limits to longevity. One prominent theory of aging lays the blame on the accumulation of damage done ...olves different genes—is found in the brain of the aging chimpanzee. The authors compared results from three separate studies of age-related gene expression...

Carnegie Mellon scientists create PNA molecule with potential to build nanodevices

...netic limits to longevity. One prominent theory of aging lays the blame on the accumulation of damage done ...olves different genes—is found in the brain of the aging chimpanzee. The authors compared results from three separate studies of age-related gene expression...

Discovering the first steps in transcription-coupled repair

... Cockayne Syndrome, an extreme form of accelerated aging that is inevitably fatal early in life. Cooper an...her work may provide insight into the processes of aging itself. ...

New research examines genetics of successful aging

...links to cognitive longevity. "While successful aging has been defined in many ways, we focused on indiv...rette smoking and excessive drinking on successful aging in both sexes. "The finding that genetics, lifestyle decision making, and their interactions, may i...

Plants, too, have ways to manage freeloaders

...d by poorly performing bacteria, or preventing the aging of nodules more effective at fixing nitrogen. In studies at the University of California's Bodega Marine Reserve, a 362-acre preserve located about 60 miles north of the UC Berkeley campus, Simms and her colleagues set out to test some of these hypo...

Infant transplant patients resist infections that kill adult AIDS patients

...mprove treatments of AIDS, cancers and diseases of aging related to declining function of the immune system. "We are very excited by this result," says Jeffrey Platt, M.D., the Mayo transplant researcher who led the team. "This will be the first step to discovering how to make the immune system work in pa...

Learning and memory stimulated by gut hormone

...protect against certain forms of dementia, because aging and obesity are associated with a decline in ghrelin levels and an increased incidence of conditions of memory loss like Alzheimer's disease. ...

Sexual reproduction delays aging in a mammalian species

Past research on aging and the life histories of diverse species has show... offers the rare opportunity to study differential aging rates among individuals possessing the same genes and experiencing the same environmental conditions...

World faces challenge as life expectancies lengthen, scientist says

... be on the brink of unlocking the mysteries of the aging process, Tuljapurkar worried that the world is unprepared for the inequalities that this new knowledge may generate between the world's rich and poor. "Are some people going to be left behind? Are we going to make society far more unequal than it is...

Weizmann Institute suggests that immune cells help to maintain cognition and brain cell renewal

...hing implications for elderly populations, because aging is known to be associated with a decrease in immune system function. It is also accompanied by a decrease in new brain cell formation, as well as in memory skills. Therefore, by manipulating and boosting the immune system, it might be possible to pre...

Common enzyme is a key player in DNA repair

...s done groundbreaking work on the genetic basis of aging in worms, systematically identified the genes turned on in bacteria exposed to DNA damaging agents, the so-called SOS response. Kenyon named the damaged-inducible (Din) genes in order of discovery, and DinB was the second one she found. "Knocking i...

New mechanism for essential genome-wide gene silencing identified

...y. Instability in the telomeres has been linked to aging in humans and an elevated risk for aging-related diseases, the most prominent of which is cancer. ...

For the first time: Longevity modulated without disrupting life-sustaining function

...atile pathway to exploit its beneficial effects on aging and life span inevitably invited a host of problem...e possible to medically tweak this pathway to slow aging and improve the quality of life without harmful consequences to the body. In humans and other mamm...

Bone and cartilage growth to blame for heart valve disease

...at thickening of the mitral valves was part of the aging process as deposits of calcium, a mineral found in...." Valvular heart disease is on the rise with the aging of the United States population, and is second only to coronary artery disease as a cause for open h...

Resveratrol prolongs lifespan and delays onset of aging-related traits in a short-lived vertebrate

...ort the potential utility of the compound in human aging research. The development of drugs able to retard...ality of life in the elderly is a growing focus of aging research and public health in modern society. But the successful development of drugs aimed at aging...

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