And what they found was that people who lived to 90 or 100 were more likely to have daf-2 mutations -- that is, changes in the gene that encodes the receptor for IGF-1.
研究人员发现 活到90或100岁的人 更有可能有daf-2变异-- 也就是说，编码了IGF-1受体 的那段基因产生了变异