Title |
Physical activity and environmental enrichment regulate the generation of neural precursors in the adult mouse substantia nigra in a dopamine-dependent manner
|
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Published in |
BMC Neuroscience, October 2012
|
DOI | 10.1186/1471-2202-13-132 |
Pubmed ID | |
Authors |
Philipp Klaissle, Anne Lesemann, Petra Huehnchen, Andreas Hermann, Alexander Storch, Barbara Steiner |
Abstract |
Parkinson's disease is characterized by a continuous loss of neurons within the substantia nigra (SN) leading to a depletion of dopamine. Within the adult SN as a non-neurogenic region, cells with mainly oligodendrocytic precursor characteristics, expressing the neuro-glial antigen-2 (NG2) are continuously generated. Proliferation of these cells is altered in animal models of Parkinson's disease (PD). Exercise and environmental enrichment re-increase proliferation of NG2+ cells in PD models, however, a possible mechanistic role of dopamine for this increase is not completely understood. NG2+ cells can differentiate into oligodendrocytes but also into microglia and neurons as observed in vitro suggesting a possible hint for endogenous regenerative capacity of the SN. We investigated the role of dopamine in NG2-generation and differentiation in the adult SN stimulated by physical activity and environmental enrichment. |
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Student > Ph. D. Student | 15 | 18% |
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