Tag: "lifespan" at biology news
'Casanova' field crickets - live fast, die young
... for longer. "One thing that consistently prolongs lifespan
in a range of species is a restricted diet. Now we know a bit more about how this occurs in male crickets by suppressing sexual advertisement," says UNSW co-author, Dr Rob Brooks. According to UNSW co-author, Dr Bussiere, the best predictor of male ...
Loss of fruit fly retina protein delays blinding light damage
...uld be longer for other animals, since fruitflies' lifespan
is only about 50 days. The researchers are now searching for other proteins that reduce or prevent vision loss after exposure to constant light. They're also studying how constant light causes irreversible destruction of rhodopsin....
Save up your energy reserves for a longer life!
...or example, by dietary restriction, may extend the lifespan
of different organisms. Now research from scientis...ecules, AMP and ATP correlates well with increased lifespan
in nematode worms. ATP is routinely used by the body as a source of energy and generates AMP as a fi...
JCI table of contents, December 1 2004
...hat both interventions significantly increased the lifespan
of these mice and improved neuromuscular dysfunction. The authors suggest that antiapoptosis therapy may be a possible way in which to relieve neuromuscular dysfunction due to laminin-alpha2 deficiency in humans with muscular dystrophy. TITLE: Inhibi...
New pheromone creates buzz about the clout of older bees
...nd the final one to three weeks of their five-week lifespan
out in the field. Experiments showed that if a significant number of forager bees didn't come home, the young nurse bees would mature ahead of schedule and head out to become foragers themselves. If the older bees were kept inside more than usual a...
Study in Royal Society journal on possible genetic factors in social responsiblity
...t wing wear strongly affects bee behaviour and bee lifespan
is limited by the flight mechanism. Contact: Dr Andy Higginson, Animal Behaviour and Ecology Research Group, School of Biology, University of Nottingham, NOTTINGHAM, NG7 2RD Adaptation to the cost of resis...
Studies in Royal Society journals include stress in birds and depletion of medieval fish stocks
..., York, YA1 7EP, UK The fitness cost of extended lifespan
in Caenorhabditis elegans by Dr GJ Lithgow, Dr NL Jenkins and Dr G McColl Is it possible for lifespan
to be extended without negative effects? Evolutionary theory predicts that extending lifespan
Genome of ancient fish could reveal evolutionary mysteries, Stanford scientists say
...nths evolve so slowly, Noonan suggested that their lifespan
might be at issue. Where most fish reproduce quickly and have short generation times, the coelacanth reproduces slowly and gives birth to live young. This means that the coelacanth has had fewer generations of offspring to accumulate mutations. ...
JCI table of contents, November 15 2004
...b production of toxic oxygen molecules reduces the lifespan
of circulating red blood cells. In the November 15 issue of the Journal of Clinical Investigation, Mitchell Weiss and colleagues investigated the role of the alpha-Hbstabilizing protein (AHSP) in limiting the damage caused by free alph...
Calorie restriction leads to some brain benefits but not others in mice
...both antioxidants and calorie restriction increase lifespan
and reduce aging-related diseases, Dugan and her colleagues hypothesized that calorie restriction, like antioxidants, helps protect the brain against free radical damage. To test their theory, the team compared young and old mice fed normal diets wi...
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