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Old 11-14-2006, 10:36 AM
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Daffy Duck Daffy Duck is offline
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Daffy Duck Daffy Duck is offline
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Quote:
Originally Posted by aftermathman View Post
Daffy, you say "Parkinson's Disease isn't due to a massive lack of dopamine producing cells".

However a large part of my diagnosis was via a DAT scan which (I thought) positively showed up the absence of dopamine producing cells. Is this correct ?

Aftermathman.
Although DAT scans are often claimed to show a loss of dopamine producing cells, DAT scans can instead show a reduced activity of the dopamine producing cells. Most of the cells are there. They just aren't as active as they should be. In typical PD the activity is about 25%. In severe PD the activity can be less than 10%.The level of activity is constantly changing, which is why symptoms can fluctuate.
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