Cholesterol Lowering Gene Increases Longevity
CAMBRIDGE, Mass. (Nov. 11, 2003) — For years scientists have suspected that both longevity and low cholesterol are closely linked to genetics. This suspicion proves accurate in a new study to be published this week online in the Proceedings of the National Academy of Sciences, which shows genetic variation in a gene known for playing a key role in lipoprotein production also appears to be significantly overrepresented in centenarians.
The study, co-authored by Whitehead Institute scientist
Mark Daly,
surveyed a large stretch of chromosome 4 taken from
a group of 653 people 98 years and older and compared
the findings with another group of individuals under
50. The study establishes that centenarians have a higher
incidence of the genetic variant (which is reported
to downregulate the gene) and confirms that more severe
mutations confer even greater longevity. |