By Elizabeth Reis

It is exciting to read about promising new gene therapies that might make living with various disabilities easier or even render them extinct. Researchers at University of Massachusetts Medical School are working on a way to “turn off” the extra chromosome found in people with Down syndrome. If the gene therapy works as they hope, turning off the chromosome would mitigate some of the effects of Down’s. So far this possibility has only been glimmered in a laboratory dish, but ultimately the goal would be to turn off the extra chromosome prenatally, so that the brain would form without developmental and intellectual encumbrances.