X-Message-Number: 26696
References: <>
From: David Stodolsky <>

Subject: =?WINDOWS-1252?Q?Researchers_Identify_Gene s_Role_in_Suppressi? 
=?WINDOWS-1252?Q?ng_Longevity?Date: Tue, 26 Jul 2005 10:12:25 +0200

http://www.hhmi.org/news/alt7.html


Researchers Identify Gene s Role in Suppressing Longevity

Researchers have determined that a gene present in mouse cells limits  
the number of times that a cell can divide. The gene is involved in a  
process, called senescence, which is thought to ensure that aging  
cells do not pass on harmful mutations.

The researchers said the gene, known as SIRT1, suppresses longevity,  
and may play a role in regulating the aging process. But they caution  
against interpreting the results too broadly, because dividing mouse  
cells in culture are an imperfect model of how aging affects human  
cells.



David Stodolsky    Skype: davidstodolsky

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