I've heard creatine can help some neurological disorders, is there any truth in this?

Some people are born with genetic disorders like muscular dystrophy where they have abnormally low levels of creatine phosphate in their muscles. Creatine supplementation, in such individuals, increases their strength and energy. The replenishment of ATP in sufferers of muscular dystrophy means that cells are better equipped to protect against injury and subsequent death (Myers 2002). In theory, this may actually prolong the life of the individual.