rdf:type |
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lifeskim:mentions |
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pubmed:issue |
6
|
pubmed:dateCreated |
2006-11-29
|
pubmed:abstractText |
A partial reduction in food intake has been found to increase lifespan in many different organisms. We report here a new dietary restriction regimen in the nematode Caenorhabditis elegans, based on the standard agar plate lifespan assay, in which adult worms are maintained in the absence of a bacterial food source. These findings represent the first report in any organism of lifespan extension in response to prolonged starvation. Removal of bacterial food increases lifespan to a greater extent than partial reduction of food through a mechanism that is distinct from insulin/IGF-like signaling and the Sir2-family deacetylase, SIR-2.1. Removal of bacterial food also increases lifespan when initiated in postreproductive adults, suggesting that dietary restriction started during middle age can result in a substantial longevity benefit that is independent of reproduction.
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pubmed:grant |
|
pubmed:language |
eng
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pubmed:journal |
|
pubmed:citationSubset |
IM
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pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:month |
Dec
|
pubmed:issn |
1474-9718
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pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:volume |
5
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
487-94
|
pubmed:dateRevised |
2011-11-17
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pubmed:meshHeading |
pubmed-meshheading:17081160-Aging,
pubmed-meshheading:17081160-Animals,
pubmed-meshheading:17081160-Bacteria,
pubmed-meshheading:17081160-Caenorhabditis elegans,
pubmed-meshheading:17081160-Caenorhabditis elegans Proteins,
pubmed-meshheading:17081160-Caloric Restriction,
pubmed-meshheading:17081160-Fertility,
pubmed-meshheading:17081160-Food Deprivation,
pubmed-meshheading:17081160-Immunity, Innate,
pubmed-meshheading:17081160-Insulin,
pubmed-meshheading:17081160-Insulin-Like Growth Factor I,
pubmed-meshheading:17081160-Longevity,
pubmed-meshheading:17081160-Models, Animal,
pubmed-meshheading:17081160-Mutation,
pubmed-meshheading:17081160-Receptors, Nicotinic,
pubmed-meshheading:17081160-Sirtuins,
pubmed-meshheading:17081160-Stress, Physiological
|
pubmed:year |
2006
|
pubmed:articleTitle |
Lifespan extension in Caenorhabditis elegans by complete removal of food.
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pubmed:affiliation |
Department of Microbiology, University of Washington, Seattle, WA, USA.
|
pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't,
Research Support, N.I.H., Extramural
|