Huntington’s disease successfully treated for first time

It starts with a safe virus that has been altered to contain a specially designed sequence of DNA.
This is infused deep into the brain using real-time MRI scanning to guide a microcatheter to two brain regions – the caudate nucleus and the putamen. This takes 12 to 18 hours of neurosurgery.
The virus then acts like a microscopic postman – delivering the new piece of DNA inside brain cells, where it becomes active.
This turns the neurons into a factory for making the therapy to avert their own death.
The cells produce a small fragment of genetic material (called microRNA) that is designed to intercept and disable the instructions (called messenger RNA) being sent from the cells’ DNA for building mutant huntingtin.
— Read on www.bbc.com/news/articles/cevz13xkxpro