Gene tweak doubles worm lifespan, sparks aging notes
New York AP reports Cynthia Kenyon and colleagues found a single mutated gene in worms extends life more than twofold. The altered worms appeared healthier than their aged peers, prompting excitement about aging mechanisms with possible human relevance, though implications remain uncertain.
MENTIONED IN THIS ARTICLE
New York
Cynthia Kenyon
Dr. Kenyon
University of California
San Francisco
Kenyon
Worm genes daf-2 and daf-16 extend lifespan in C elegans
Researchers report in Nature that Caenorhabditis elegans with daf-2 mutations live about 42 days versus 18 for ordinary worms, with daf-16 involved. The two genes govern a spore-like dormancy pathway and may hint at broader longevity mechanisms, though no human equivalents are known. Tom Johnson of CU Boulder confirms results. experts caution about applicability to people.
MENTIONED IN THIS ARTICLE
Nature
Kenyon
Tom Johnson
University of Colorado At Boulder
Fatty diet linked to higher lung cancer risk study
A National Cancer Institute study of 429 non smoking Missouri women found that diets with 15 percent or more saturated fat raised lung cancer risk about sixfold compared with diets at 10 percent or less. Higher fat and lower fruits and vegetables correlated with greater risk, including adenocarcinoma, while beans and peas showed a potential small protective effect.
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Washington
National Cancer Institute
Missouri
Ido
Rhseap
Michael Co
Alavanja
Journal of
The
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