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Osteoarthritis May Be Sign Of Faster 'Biological Aging'

10-02-2006 · ScienceDaily

Osteoarthritis, the degenerative inflammatory bone disease, may be a sign of faster "biological aging," suggests research published ahead of print in the Annals of the Rheumatic Diseases. The authors base their findings on a study of almost 1100 people, aged between 30 and 79. Most of them were female twins.

Keywords: osteoarthritis, sign, biological, aging, osteoarthriti

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Neighborly care keeps stem cells young
10-10-2007 · EurekAlert!
A stem cell's immediate neighborhood, a specialized environment also known as the stem cell niche, provides crucial support needed for stem cell maintenance. But nothing lasts forever, found scientists at the Salk Institute for Biological Studies. During the aging process, the level of support drops off, diminishing the stem cells' ability to replenish themselves indefinitely.
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Live Long and Perspire: Exercise may slow aging at chromosomal level
02-02-2008 · Science News Online
A new study finds that a sedentary lifestyle is linked to short telomeres on chromosomes, potentially a sign of rapid aging.
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Aging gracefully requires taking out the trash
12-14-2007 · EurekAlert!
Suppressing a cellular cleanup-mechanism known as autophagy can accelerate the accumulation of protein aggregates that leads to neural degeneration. In an upcoming issue of Autophagy, scientists at the Salk Institute for Biological Studies report for the first time that the opposite is true as well: Boosting autophagy in the nervous system of fruit flies prevented the age-dependent accumulation of cellular damage in neurons and promoted longevity.
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FISH-ing for links between cancer and aging
02-05-2007 · EurekAlert!
Wielding a palette of chromosome paints, scientists at the Salk Institute for Biological Studies have taken a step closer to understanding the relationship between aging and cancer by visualizing chromosomes of cells from patients with a heritable premature aging disease known as Werner Syndrome.
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Good for the goose, not so great for the gander
02-07-2007 · EurekAlert!
A provocative new model proposed by USC molecular biologist John Tower may help answer an enduring scientific question: Why do women tend to live longer than men? The model suggests how, on a genetic level, the evolution of aging and sex may be inextricably linked. It concludes that sexual differentiation processes may exact a high biological cost -- reduced function of the cell’s mitochondria and shorter life span in males.
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Geisinger study: PTSD a medical warning sign for long-term health problems
02-13-2008 · EurekAlert!
New Geisinger research finds that post-traumatic stress disorder is an indicator of long-term health problems, similar to biological warning signs such as elevated white blood cell counts. With an in-depth study of Vietnam vets, pioneering PTSD researcher Joseph Boscarino shows that PTSD leaves a distinct biological mark on a person's overall health. Considered a psychological or mental health problem, PTSD should now be viewed as a threat to a person's physical health, Boscarino concludes.
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Scientists find missing link to understand how plants make vitamin C
04-27-2007 · EurekAlert!
Vitamin C is possibly the most important small molecule whose biosynthetic pathway remained a mystery. That is until now. A group of Dartmouth and UCLA researchers, who normally work on genes involved in aging and cancer in animals, discovered the last piece of the puzzle, they report in a study published online April 26 in the Journal of Biological Chemistry.
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First Non-invasive Test To Measure Skin Aging; Results Suggest Women's Skin Ages Faster Than Men's
10-05-2006 · ScienceDaily
Physicists and medical researchers for the first time have demonstrated a new technique that non-invasively measures in real time the level of damage to the skin from sun exposure and aging, and initial results suggest that women's skin ages faster than men's. Findings appear in the October 1 issue of Optics Letters, a journal of the Optical Society of America.
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Other highlights in the November 15 JNCI
11-14-2006 · EurekAlert!
Other highlights in the Nov. 15 JNCI include the impact of weight on colon cancer outcomes, a combination therapy that increases ovarian cancer survival, impact of aging on breast cancer risk and a molecule that can target the tumor vascular system.
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No proof that growth hormone therapy makes you live longer, Stanford study finds
01-15-2007 · EurekAlert!
Surveyors of anti-aging elixirs tout human growth hormone as a remedy for all things sagging-from skin to libidos -- and claim it can even prevent or reverse aging. But researchers at the Stanford University School of Medicine say there's no evidence to suggest that this purported fountain of youth has any more effect than a trickle of tap water when it comes to fending off Father Time.
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