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Old 05-22-2007, 10:31 AM
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Daffy Duck Daffy Duck is offline
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The study you referred to does nothing more than ask the question as to whether dopaminergic neurons can reproduce. It provides no evidence at all in support of dopaminergic neurons reproducing in adults. It's not a controversial question at all. There is no such evidence.

When I studied every cell type, I purposefully checked to see whether mitosis ("neurogenesis" in neurons) occurred in each type, and at what ages it occurred and ceased. All cell types reproduce in humans. However, four of them do not reproduce in adults. The well known one is teeth, which cease reproducing in adults and younger. The cells involved in Parkinson's Disease (the dopaminergic neurons) are another of those four cell types well known not to reproduce. This fact is the basis for the stem cell theorists.

Looks like your other questions are again solely aimed at trying to distract attention from the issue. You're not genuinely interested in the answers. If you knew them, you'd emphatically realise that you'd have to find different means of trying to distract attention from the scientific scrutiny of your theory.
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