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Tag: "aging" at biology news

Hope I die before I get old?

...er in life. They also may help explain the fear of aging that drives middle-aged people to "midlife crisis"...tempt to slow their own aging. Stereotypes about aging abound in our society, Lacey says, and affect the way older people are treated as well as the public...

Diabetes research takes wing thanks to long-lived fruit fly

...th Bohmann will discuss the fly's implications for aging and health at a symposium in Sweden sponsored by t... This has opened a new playing field for people in aging research." The work was initially supported by the Nathan Shock Center, funded by the National Inst...

Cutting calories slightly can reduce aging damage

...tic 20 percent to 40 percent cut in calories slows aging damage. The UF findings indicate even small reduct...hich shows significant signs of dysfunction in the aging process," said Christiaan Leeuwenburgh, Ph.D., an associate professor of aging and geriatric researc...

Orange, grapefruit juice for breakfast builds bones in rats

...ented osteoporosis, long considered an unavoidable aging disease in which bones become more likely to break... to reduce antioxidants. "This is a problem with aging men, because, the level of testosterone decreases as men age," said Deyhim, adding a similar study o...

Free radical cell death switch identified

"A common molecular denominator in aging and many age-related diseases is oxidative stress,... to general cellular deterioration associated with aging and degenerative diseases. How the oxidative-stress signals trigger these profound effects in cells...

UWM brain research supports drug development from jellyfish protein

...rwood, is interested in the "calcium hypothesis of aging and dementia," which is just one of many theories that attempts to explain what is going on in neuron degeneration. He became interested in aequorin as an undergraduate at UW-Milwaukee, after reading an article that linked the stings of jellyfish ...

What animals can tell us about hemorrhage, organ transplants and aging

...nisms of hibernation," and "Comparative biology of aging in long-lived animals." How is it that: Hibern...know about how and why we age, and can we slow the aging process? In the symposium, "Comparative biology of aging in long-lived animals" scientists will co...

A new jump start for aging blood vessels

...s show promise for significantly reducing vascular aging by inactivating TNFa, which has been linked to blo... death, further confirming the role of TNFa in the aging of the cardiovascular system. The knowledge that cardiovascular disease is the leading cause of d...

How many genes does it take to learn? Lessons from sea slugs

...'s and Alzheimer's diseases, and genes controlling aging and stem-cell differentiation. They found 104 counterpart genes in Aplysia, suggesting it will be a valuable tool for developing treatments for neurodegenerative diseases. "The authors have assembled a tremendous amount of data on gene transcripts...

Jefferson scientists find aging gene also protects against prostate cancer development

...e shown that a gene that is involved in regulating aging also blocks prostate cancer cell growth. The researchers, led by Kimmel Cancer Center director Richard Pestell, M.D., Ph.D., hope the newly found connection will aid in better understanding the development of prostate cancer and lead to new drugs aga...

Age-related changes in DNA repair illuminate the connection between age and genetic damage

Researchers have uncovered a new way in which the aging process is linked to DNA damage--which occurs norm...thy functioning of cells, and a connection between aging and DNA damage has long been suspected. One line of evidence supporting the connection is that defec...

Buildup of damaged DNA in cells drives aging

...hat grow old naturally. Furthermore, the premature aging symptoms of the mice led to the discovery of a new...cting hypotheses currently favored in the field of aging research about why we get old, according to the authors. The first is that our lifespan and how well...

Enzyme shreds Alzheimer's protein

...ally, they found that increasing levels of CatB in aging mice with human APP markedly reduced plaque deposits in the animals' brains. Gan and colleagues concluded that "our findings suggest that inhibition or loss of CatB function could interfere with its protective function and promote the development o...

Temperament linked to onset of cancer and early death in female rats

...arful rats having irregular cycles more often. The aging affects on reproduction were also accelerated in the fearful rats. In an earlier study, University of Chicago researchers looked at the lifespan of male rats and found that the adventuresome males lived longer. Because the male rats died of a vari...

Mars mission Risk 29: Scientists research ways to reduce radiation-induced brain damage

... similar to the free-radical injury resulting from aging and other neurological diseases, the research could lead to better treatments for conditions like Alzheimer's disease that cause progressive dementia. The projects of the twelve teams investigating the cosmic radiation risks, listed by principal i...

Stem cell activity deciphered in the aging brain

Neurobiologists have discovered why the aging brain produces progressively fewer new nerve cells...ong crucial "progenitor" stem cells persist in the aging brain. The finding also suggests the possibility of treating various neurodegenerative disorders, i...

Studies find general mechanism of cellular aging

...ession, of the gene p16INK4a in older cells; these aging cells worked poorly compared to young cells and re...e results show disparate cell types share a common aging mechanism and suggest that aging-related diseases such as diabetes result from a failure of cell gro...

Proteins necessary for brain development found to be critical for long-term memory

...ents for, cognitive decline associated with normal aging and diseases such as Alzheimer's. The findings appear in the early online edition of the Proceedings of the National Academy of Sciences. "This study presents strong evidence that a molecular process fundamental during development is retained in...

Smashing the time it takes to repair our bones

...ealing process but won't heal properly and with an aging population this is a growing problem for orthopaedic surgeons to accommodate and one that is not easily solved with current methodologies," he said. "In the future we might be able to make a device utilising these combined stimulants that could be...

German researchers develop first non-invasive test to measure skin aging

...ble to monitor variations in the very same spot as aging progresses. "You would like to measure changes in collagen content over time," Dr. Koehler said. "Moreover, current techniques provide a qualitative assessment of the state of the matrix, but no precise measure of the collagen or of the elastin conte...

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