阻止亨廷顿舞蹈症的进展

Halting the Flow of Huntington’s By Elie Dolgin | Illustration by Stefania Infante Researchers and drugmakers are racing to keep a single mutation from driving a devastating disease Jeff Carroll was in his mid-twenties, fresh out of the U.S. Army, when a genetic test confirmed his worst fear: He was going to develop Huntington’s disease. He had watched his mother’s illness for years; the tremors first, small enough to explain away, then the involuntary movements that looked almost like dancing. The test revealed that the same mutation that caused her disease lived in him: a stretch of three DNA letters in a gene called HTT, repeated over and over again dozens of times. Carroll himself was not sick yet. …