Senior Living

Researchers look for clues to Parkinson's progression

Emory Researchers are conducting a prospective clinical study to examine the possibility of diagnosing Parkinson’s disease (PD) before motor symptoms occur. The study is an arm of the Parkinson’s Progression Markers Initiative (PPMI), which was launched in 2010 by The Michael J. Fox Foundation for Parkinson’s Research to help define one or more biomarkers of PD.

The PPMI study included early, untreated PD patients, and this arm of the study will include pre-symptomatic patients. The study will examine biomarkers indicative of conversion from no motor symptoms to the typical neurological disorder. Patients will undergo Single-Photon Emission Computed Tomography (SPECT) and Magnetic Resonance Imaging (MRI), and have tests to examine brain proteins that mark the disease, and possibly mark the conversion to symptomatic disease.

“Presently, there is no test for diagnosing Parkinson’s,” says Stewart Factor, DO, professor of neurology at Emory University School of Medicine and principal site investigator of the study. “It is a clinical diagnosis based on history and clinical examination findings.

“Since Parkinson’s disease is a progressive disorder, we believe that by learning to recognize pre-motor symptoms for PD, we may be able to develop therapies that would delay or prevent the onset of the impaired movements, tremor and gait problems in PD patients.”

The pre-motor arm of PPMI will enroll participants who do not have motor symptoms of Parkinson’s disease, but are living with one of three potential risk factors for PD: a reduced sense of smell; rapid eye movement sleep behavior disorder (acting out one’s dreams); or a mutation in the LRRK2 gene – the single greatest genetic contributor to PD known to date. Then the participants will be followed over several years to see if, or when, they develop Parkinson’s disease.

*** The Robert W. Woodruff Health Sciences Center of Emory University is an academic health science and service center focusing on teaching, research, health care and public service.



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