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Parkinsonian worms may hold the key to identifying drugs for Parkinson's disease
Date:11/10/2011

s a potential therapeutic.

Pierce-Shimomura says that although humans have a vastly more complex nervous system than the worms, the two species share an "ancient and conserved" genetic structure to their dopaminergic systems. What works to overcome a dopamine deficiency in the worms may do something similar in humans, and it can be tested in worms with extraordinary speed.

Pierce-Shimomura has already begun testing potential drugs for Parkinson's. So far he's found one compound that shows promising effects in the worms. The particular compound has already been approved for use in humans for treatment of another condition.

Working with the university's Office of Technology Commercialization, he's filed a patent application for the worm model for testing of neurodegenerative diseases such as Alzheimer's and Parkinson's.

About half a million Americans suffer from Parkinson's disease, a degenerative disorder of the central nervous system. Early symptoms of the disease include shaking, rigidity, and slowness of movement. As it progresses, the physical symptoms can advance to the point of incapacity, and cognitive impairments, including early dementia, can arise as well.

A huge barrier to preventing or treating diseases such as Parkinson's is the amount of time it takes to identify drugs that work effectively. Typically, drugs are tested on mice a process that is expensive and requires one to two years for mice to age while testing just a few dozen drugs at a time.

With the help of a few undergraduates Pierce-Shimomura believes that he can test about 1,000 drugs a year. The number could rise to one million a year if the process can be automated.

He recently received a competitive $3 million Transformative Research Projects Award from the National Institutes of Health with mechanical engineering professor Adela Ben-Yakar, to develop just such an automation process for parkinsonian worms as well as
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Contact: Daniel Oppenheimer
oppenheimer@austin.utexas.edu
512-745-3353
University of Texas at Austin
Source:Eurekalert  

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