The secret to longevity in tubeworms
With an incredible lifespan of up to 250 years the deep sea tube worm, Lamellibrachia luymesi is among the longest-lived of all animals, but how it obtains sufficient nutrient ?in the form of sulfide - to keep going for this long has been a mystery. In a paper just published in the premier open-access online journal PLoS Biology, Erik Cordes and colleagues now provide a solution: by releasing its...Sexual cooperation: Mating increases longevity in ant queens
The phenomenon of sexual conflict is a powerful driving force in the evolution of reproductive biology for many animal species. Males often try to manipulate their female mates during copulation--for example, by traumatic inseminations (as in the case of bed bugs) or by the transfer of toxic seminal fluids (as in the case of the fruitfly Drosophila). These manipulations are beneficial to males be...Signs of aging: Scientists evaluate genes associated with longevity
Scientists at the BC Cancer Agency's Genome Sciences Centre in Vancouver, British Columbia, Canada, and at the University of Missouri-Columbia have collaborated on a detailed study to elucidate gene-expression patterns implicated in the aging process. Their results appear online today in the journal Genome Research. Led by Dr. Angela Brooks-Wilson, Senior Scientist at the BC Cancer Agency'...Evolutionary conservation of a mechanism of longevity from worms to mammals
Though the study of aging in the nematode model organism C. elegans has provided much insight into this complex process, 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 University (Canada) report that inactivation of the gene mclk1, the murine ortholog of the C. elegans gene clk-1, results in i...For the first time: Longevity modulated without disrupting life-sustaining function
Within a hormone-triggered cascade of molecular signals that plays a crucial for a wide range of physiological functions, researchers for the very first time have identified a protein that functions specifically to extend lifespan and youthfulness -- without disrupting fertility, immunity or the organism's response to stress. "In past experiments, meddling with this versatile pathway to ex...Antioxidants used for longevity
A natural antioxdant enzyme called superoxide dismutase (SOD) lacking in mice paves the way towards new treatment for brain degenerative diseases. It is known that oxidative damage plays an important role in brain degeneration of the kind seen in Alzheimer's, Parkinson's and other neurological diseases. Researchers, in California, have developed a mouse model for studying oxidative damage and how...Genes to Extend Longevity Discovered
Calorie restriction seems to be the key to extend the lifespan of many species through Sir2 gene.// Researchers from Harvard Medical School, Boston and University of California, Davis, screened for genes that could increase yeast lifespan via Sir2 gene. According to the study published today in the advance online edition of Science, “Yeast and Drosophila lacking the Sir2 gene do not l...Important parameters of life: Longevity and quality: both improved by exercise
“The grapes are sour!” is a very famous saying which refers to an attitude when we know something is good but are unable to achieve it and so feign that we are not concerned about it//. The same can be said about exercise! Everybody knows it's good; yet many people still avoid it, forgoing its potential health benefits. Contrary to the above statement researchers at the Univers...Longevity Crosslinked Polyethylene Liners
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