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Fitness in a Changing World
The stickleback fish, Gasterosteus aculeatus, is one of the most thoroughly studied organisms in the wild, and has been a particularly useful model for understanding variation in physiology, behavior, life history and morphology caused by different ecological situations in the wild. view more (2008-10-13)
Mucous breakthrough in mice holds promise for cystic fibrosis
A London, Canada scientist studying cystic fibrosis (CF) has successfully corrected the defect which causes the overproduction of intestinal mucous in mice. view more (2008-07-30)
Worms control lifespan at high temperatures, UCSF study finds
The common research worm, C. elegans, is able to use heat-sensing nerve cells to not only regulate its response to hotter environments, but also to control the pace of its aging as a result of that heat, according to new research at the University of California, San Francisco. view more (2009-04-17)
Caltech scientists predict greater longevity for planets with life
Roughly a billion years from now, the ever-increasing radiation from the sun will have heated Earth into inhabitability; the carbon dioxide in the atmosphere that serves as food for plant life will disappear, pulled out by the weathering of rocks; the oceans will evaporate; and all living things will disappear. view more (2009-06-15)
U. Iowa team identifies genes that improve survival in mice with ALS
University of Iowa researchers investigating the basic biology of cell signaling have made a discovery that may have therapeutic implications for amyotrophic lateral sclerosis (ALS) and other neurodegenerative diseases. view more (2007-09-14)
Enhanced skin cancer risk linked to defects in cellular aging controls
Cell lifespan is limited by telomeres, DNA sequences that cap chromosomes and control the number of times a cell may be copied. A new study reported in Disease Models & Mechanisms (DMM), dmm.biologists.org, describes how telomere dysfunction in skin cells can lead to increased skin cancer risk and pigmentation. view more (2009-02-23)
Researchers find 1 in 6 women, 1 in 10 men at risk for Alzheimer's disease in their lifetime
Researchers from Boston University School of Medicine (BUSM) have estimated that one in six women are at risk for developing Alzheimer's disease (AD) in their lifetime, while the risk for men is one in ten. view more (2008-03-19)
A molecular map for aging in mice
Researchers at the National Institute of Aging and Stanford University have used gene arrays to identify genes whose activity changes with age in 16 different mouse tissues. view more (2007-11-29)
UCLA engineers pioneer affordable alternative energy-solar energy cells made of everyday plastic
Researchers at the UCLA Henry Samueli School of Engineering and Applied Science hope to meet the growing demand with a new and more affordable way to harness the sun's rays: using solar cell panels made out of everyday plastics. view more (2005-10-10)
Agent slows aging in mice
Aspirin didn't pan out. Neither did two other potential anti-aging agents. But a synthetic derivative of a pungent desert shrub is now a front- runner in ongoing animal experiments to find out if certain chemicals, known to inhibit inflammation, cancer and other destructive processes, can boost the odds of living longer. view more (2007-06-04)
Males with elevated levels of testosterone lead shorter lives but have more success siring offspring
Comparative studies have studied testosterone levels and related them to mating systems and aggression, but very few studies have attempted to relate testosterone to fitness, that is, the combination of lifetime reproductive success and survival, in the wild or experimentally. view more (2006-04-13)
Newly Born Twin Stars Are Far From Identical
Two stars, each with the same mass and in orbit around each other, are twins that one would expect to be identical. So astronomers were surprised when they discovered that twin stars in the Orion Nebula, a well-known stellar nursery 1,500 light years away, were not identical at all. view more (2008-06-19)
Radiation for health
For decades, we have been told that exposure to radiation is dangerous. In high doses it is certainly lethal and chronic exposure is linked to the development of cancer. view more (2008-06-19)
Dormant stem cells for emergencies
Many specialized cells, such as in the skin, intestinal mucosa or blood, have a lifespan of only a few days. For these tissues to function, a steady replenishment of specialized cells is indispensable. This is the task of so-called "adult" stem cells also known as tissue stem cells. view more (2008-12-05)
Research breakthrough targets genetic diseases
A cure for debilitating genetic diseases such as Huntington's disease, Friedreich's ataxia and Fragile X syndrome is a step closer to reality, thanks to a recent scientific breakthrough. view more (2009-01-21)
SIRT1 takes down tumors
Yuan et al. have identified another anti-cancer effect of the "longevity" protein SIRT1. By speeding the destruction of the tumor promoter c-Myc, SIRT1 curbs cell division. view more (2009-04-13)
U of MN research shows how infection-fighting cells interact
Researchers at the University of Minnesota have identified key insights into how different types of infection-fighting T-cells survive and co-exist within the body's immune system. view more (2006-03-06)
Calorie restriction appears better than exercise at slowing primary aging
Investigators at Washington University School of Medicine in St. Louis have found that eating a low-calorie yet nutritionally balanced diet lowers concentrations of a thyroid hormone called triiodothyronine (T3), which controls the body's energy balance and cellular metabolism. view more (2006-06-01)
Sirtris unveils promising, novel SIRT1 activators for treating diseases of aging
Sirtris Pharmaceuticals, Inc. (NASDAQ: SIRT), a biopharmaceutical company focused on discovering and developing small molecule drugs to treat diseases of aging, announced today that findings in the journal Nature demonstrate that Sirtris has developed novel drug candidates that offer a promising, new approach to treating diseases of aging,... view more... (2007-11-29)
New genetic biomarkers could predict coronary heart disease
New genetic markers may be able to predict whether a person is likely to have coronary heart disease (CAD) in the future. Research carried out by Dr. M. Balasubramanyam and Dr.V.Mohan at the Madras Diabetes Research Foundation (India) shows that people who are pre-diabetic or who have Type 2 diabetes have much shorter telomeres1 and, since these... view more... (2007-04-02)
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