Sugar Negates Worm's Life-Extending Mutation


	Sugar Negates Worm's Life-Extending Mutation

tabsey

11-4-2009 7:03 AM

89 views

tags:

murder, :)

tabsey says:

No more pavlova going in my compost bin.

1 Comment |

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11-4-2009 9:55 AM

ellesrainbow

makes me want to get a grant to see what coffee does to spiders

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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/85c3f6a6-c71a-4827-a7d4-432cf2529b03/8675EAA8-AA9F-4E62-BFAE-8BA0B628D2FF/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://www.scientificamerican.com/podcast/episode.cfm?id=sugar-negates-worms-life-extending-09-11-03" href="http://www.scientificamerican.com/podcast/episode.cfm?id=sugar-negates-worms-life-extending-09-11-03" style="font-size: 11px;">www.scientificamerican.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.scientificamerican.com/podcast/episode.cfm?id=sugar-negates-worms-life-extending-09-11-03"><P>For worms fed a sugary diet, life is sweet. But short. According to a new study published in the journal <EM>Cell Metabolism</EM>, consistently adding a small amount of sugar to a worm's regular diet of bacteria shortened its lifespan by 20 percent. The research was performed on <EM>C. elegans,</EM> tiny roundworms that typically live an average of two weeks.</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.scientificamerican.com/podcast/episode.cfm?id=sugar-negates-worms-life-extending-09-11-03"><P>In previous work, Cynthia Kenyon of the University of California, San Francisco, found that a mutation to a gene called <EM>daf-2</EM> changed insulin signaling and doubled the lifespan of the worms. And the worms didn’t get old at their usual pace and then hang on longer—they actually aged more slowly.</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.scientificamerican.com/podcast/episode.cfm?id=sugar-negates-worms-life-extending-09-11-03">Now Kenyon’s new study shows that worms with the <EM>daf-2</EM> mutation don’t get the life-extending benefits if they are routinely fed glucose. More research will be needed to see whether a similar situation holds true in humans.</blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/8675EAA8-AA9F-4E62-BFAE-8BA0B628D2FF/blog/" title="blog or email this clip"><img src="http://content9.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>

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