A key cellular protein may help in effective treatment of neuro-degenerative diseases such as Parkinson's, Alzheimer's, Huntington's and amyotrophic lateral sclerosis, a new study has claimed. These disorders are triggered by misbehaving proteins in the brain. <br/><br/>The proteins misfold and accumulate in neurons, inflicting damage and eventually killing the brain cells. Researchers from the Gladstone Institutes in the US used a different protein to restore levels of the disease-causing proteins to a normal, healthy range, thereby preventing cell death.