Molecular switch could prevent Huntington's disease

A "molecular switch" that can prevent Huntington's disease from developing has been found in mice.
A US study concluded the mutated huntingtin protein, which causes the disease, could be stopped in its tracks by a subtle chemical modification.
It is hoped the work could lead to much-needed treatments for the inherited disorder.
The study, by the University of California, Los Angeles, is published in the journal Neuron.
Huntington's disease - a neurological condition that starts to show in mid-life and slowly impairs a person's ability to walk, talk and reason.
Children who have one parent with the condition have a 50% chance of developing it themselves and often it is passed on before people are aware that they have it.
There is no cure for the illness and treatment focuses on managing the symptoms.