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Diverse Parkinson's-related disorders may stem from different strains of same protein

A study by the University of Pennsylvania School of Medicine found that misfolded α-syn proteins embedded in brain cells cause different Parkinson's-related disorders, depending on the type of cell. The researchers discovered a distinct strain of α-syn protein, which is 1,000-fold more potent in causing disease in animal models.

Faulty cellular membrane 'mix' linked to Parkinson's disease

Researchers at Johns Hopkins Medicine have uncovered a link between a genetic mutation in the GBA1 gene and the formation of fatty plaques in the brain that contribute to Parkinson's disease. The study found that changes in the mixture of fatty molecules cause protein pieces to stick together, forming 'dead zones' in the brain.

SourceJohns Hopkins Medicine·JournalProceedings of the National Academy of Sciences·DateMar 15, 2018

Non-invasive brain stimulation improves gait impairment of Parkinson's disease patients

A new study suggests that transcranial direct-current electrical stimulation can significantly improve gait impairment in Parkinson's disease patients by simultaneously targeting both motor and cognitive networks. The treatment shows promising results in reducing freezing of gait and improving executive functions and mobility.

SourceAmerican Friends of Tel Aviv University·JournalMovement Disorders·DateMar 8, 2018

Mass. General team identifies DNA element that may cause rare movement disorder

A team of MGH researchers has identified a genetic change that may cause the rare neurological disorder XDP, which combines features of dystonia and Parkinson's disease. The discovery reveals that a DNA sequence change, including an insertion of a retrotransposon, is correlated with the age of onset for the disease.

SourceMassachusetts General Hospital·JournalProceedings of the National Academy of Sciences·DateDec 11, 2017

Good cells gone bad

Researchers from TSRI have identified a process in nerve cells called the S-nitrosylation reaction that may contribute to Parkinson's disease. The study found that this reaction can trigger cell death by preventing the proper removal of damaged mitochondria, leading to neuronal damage and death.

SourceScripps Research Institute·JournalCell Reports·DateNov 21, 2017