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New Gene Editing Study Raises Possibilities, Questions – Chicago Tonight | WTTW

August 8th, 2017 4:43 am

An international team of scientists published a new study last week documenting edits theyd made to viable human embryos carrying a genetic mutation, one associated with a life-threatening heart condition. It is the first study of its kind to take place in the United States.

The researchers were able to remove a problematic mutation in the MYBPC3 gene with a higher success rate than in similar studies. After adjusting their method, 72 percent of the embryos were free of the mutation. The scientists believe they may be able to address other monogenetic diseases using the same technique, CRISPR-Cas9.

But the notion of altering human DNA to eradicate inherited diseases is generating concern, too. These genetic changes would permanently affect the DNA passed through a family line, for one. Other critics raise the possibility of altering embryos to create desired characteristics (though it would be much harder for scientists to target genes associated with humor, creativity or physical traits).

Cardiologist and geneticist Dr. Elizabeth McNally is the director of the Center for Genetic Medicine at Northwestern University. She joins Phil Ponce in discussion.

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New Gene Editing Study Raises Possibilities, Questions - Chicago Tonight | WTTW

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