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Researchers Monitor Progression Of Parkinson's Disease By Studying Molecular Changes In Brain

Date:
October 22, 2004
Source:
Society Of Nuclear Medicine
Summary:
The progress of Parkinson's disease (PD), or any brain-wasting disease, is painful to watch in oneself or in a loved one. Physicians and researchers are not immune to that pain, but they watch the progression of disease with an eye toward understanding it and, one day, halting or reversing it.

RESTON, Va. -- The progress of Parkinson's disease (PD), or any brain-wasting disease, is painful to watch in oneself or in a loved one. Physicians and researchers are not immune to that pain, but they watch the progression of disease with an eye toward understanding it and, one day, halting or reversing it.

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Johannes Schwarz, M.D., and a team of researchers from Germany and Canada reported in the October issue of The Journal of Nuclear Medicine on a study that measured the molecular changes in the brains of PD patients over a 7.5-year time span that began during the early stages of the disease. The study used single photon emission computed tomography (SPECT) to image the loss of dopamine transporter binding. (While the pathology of Parkinson's disease is not completely understood, it is widely believed that the disease's progression is marked by a decline in dopamine transporter binding, part of the brain's neurotransmitter circulation system.)

The study demonstrates that it is possible to measure, quantitatively and over a significant period of time, the molecular changes that take place in the brain as it undergoes progressive deterioration.

"In effect what we are doing is developing the imaging of dopamine transport into a biomarker of disease progression," said Dr. Schwarz. "As a biomarker, that image provides us with much more than a picture. It gives us quantifiable data that can then be used to devise a general treatment methodology and to assess an individual patient's status and tailor treatment to his or her specific needs."

Being able to monitor not only the clinical aspects of the disease but also the changes that take place in the brain at the molecular level may lead eventually to the development of individualized treatment for Parkinson's patients that will repair the damage to the brain at the molecular level and make possible the treatment of patients who have progressed beyond the earliest stages of the disease.

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"Loss of Dopamine Transporter Binding in Parkinson's Disease Follows a Single Exponential Rather Than Linear Decline" was written by Johannes Schwarz, M.D., from the Department of Neurology, University of Leipzig, Leipzig, Germany; Alexander Storch, M.D., from the Department of Neurology, University of Ulm, Ulm, Germany; Walter Koch, M.D., and Klaus Tatsch, M.D., from the Department of Nuclear Medicine, Ludwig-Maximilians-University, Munich, Germany; Oliver Pogarell, M.D., from the Department of Psychiatry, Ludwig-Maximilians-University, Munich, Germany; and Perry E. Radau, Ph.D., from Imaging Research, Sunnybrook and Women's College Health Sciences Centre, Toronto, Ontario, Canada.

The Society of Nuclear Medicine is an international scientific and professional organization of more than 14,000 members dedicated to promoting the science, technology and practical applications of nuclear medicine. The SNM is based in Reston, Va., and can be found online at http://www.snm.org.


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The above story is based on materials provided by Society Of Nuclear Medicine. Note: Materials may be edited for content and length.


Cite This Page:

Society Of Nuclear Medicine. "Researchers Monitor Progression Of Parkinson's Disease By Studying Molecular Changes In Brain." ScienceDaily. ScienceDaily, 22 October 2004. <www.sciencedaily.com/releases/2004/10/041022104200.htm>.
Society Of Nuclear Medicine. (2004, October 22). Researchers Monitor Progression Of Parkinson's Disease By Studying Molecular Changes In Brain. ScienceDaily. Retrieved October 26, 2014 from www.sciencedaily.com/releases/2004/10/041022104200.htm
Society Of Nuclear Medicine. "Researchers Monitor Progression Of Parkinson's Disease By Studying Molecular Changes In Brain." ScienceDaily. www.sciencedaily.com/releases/2004/10/041022104200.htm (accessed October 26, 2014).

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