Long Life and Good Mental Function Gene Identified
posted on Friday, December 29, 2006
Single Gene Could Lead to Long Life, Better Mental FunctionBarzilai and his colleagues examined 158 people of Ashkenazi, or
Eastern European Jewish, descent who were 95 years of age or older.
They chose Ashkenazi Jews since current generations stem from a
relatively limited number of ancestors. This means they have a
comparatively uniform genetic makeup, making it easier to identify
important genetic differences.The scientists gave these volunteers a common test of mental
function, consisting of 30 questions. Correctly answering 25 of the
questions meant a subject passed the test. Those centenarians who
passed were two to three times more likely to have a common variant
of a particular gene, called the CETP gene, than those who did not.
When the researchers studied another 124 Ashkenazi Jews between 75
and 85 years of age, those subjects who passed the test of mental
function were five times more likely to have this gene variant than
their counterparts.Labels: Evolution, IQ, Jews, Longevity
http://www.sciam. com/article. cfm?chanID= sa003&articleID= C055A20E- E7F2-
99DF-3D3D2252606AAA C8&ref=rss
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