对基因的修改通常只能在胚胎发育阶段,研究者们在这一阶段成功的恢复了一组重度耳聋的豚鼠的听力。他们认为这个发现也许能使成千上万的耳聋患者恢复听力。像人类一样,豚鼠也有听毛细胞,它们在内耳的深处检测声音。当声波到达时,这些细胞的突起会随着声波摆动,然后把声波转化成 Modifications to the gene are usually only at the embryonic development stage, and the researchers successfully restored the hearing of a group of severely deaf guinea pigs at this stage. They think this discovery may restore hearing to thousands of deaf patients. Like humans, guinea pigs also have hair cells that detect the depths of the inner ear. When the sound waves arrive, the protrusions of these cells swing with the sound waves and then convert the sound waves into