'Relaxed' enzymes may be at the root of Charcot-Marie-Tooth disease

Treatments have been hard to pinpoint for a rare neurological disease called Charcot-Marie-Tooth, in part because so many variations of the condition exist. So far, mutations on more than 90 genes have been positively linked to the disorder; a patient needs just one of those mutations for the disease to emerge. Scientists just moved a step closer to finding a possible root cause.