Already, scientists have found hints of another gene, called the ACE gene, in which people born with one version (the so-called D version) seem more likely to reach 100 years of age than those with a second version (called the I version).

WSJ: A Gene Gives a Hint Of How Long a Person Might Hope to Live

Hot start-ups include 7TM Pharma, Egalet, NS Gene, and ACE Biosciences.

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