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Tebay, Wendy M wrote: > > Ivan, > > That's kinda what I've been getting at recently. Are the PD affected cells > really dead, or just dormant? I've seen slides showing a cross-section of the brain, and PWP don't have the dark line which is the substantia nigra. I'm afraid it's white for PWP - at least those who are dead and have donated their brains to medical research. I don't think the substantia nigra cells are dormant, they're gone. Keith