I have a 50 percent chance of inheriting the gene that causes the disease that killed my father. “I’ve decided to get tested ...

Just two years after losing their first daughter, a San Angelo family has lost their second daughter to Huntington's disease.

Huntington’s disease (HD) is caused by an expansion mutation of a CAG repeat in exon 1 of the huntingtin (HTT) gene, that encodes an expanded polyglutamine tract in the HTT protein. HD is ...