但是到现在为止，遗传学者仅发现少量的的基因突变导致肥胖的孤立案例。
However, so far, geneticists have found only rare gene mutations that contribute to isolated cases of obesity.
他们回想起发生在Steve Kurtz身上所发生的，这位艺术家使用了一位匹兹堡遗传学者发给他的细菌。
They recall what happened to Steve Kurtz, an artist who was using bacteria shipped to him by a Pittsburgh geneticist.
研究结果是“迷人的”，Ary Hoffmann说，作为澳大利墨尔本大学的遗传学者。
The results are "intriguing," says Ary Hoffmann, a geneticist at the University of Melbourne in Australia.
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