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| Content Provider | Springer Nature Link |
|---|---|
| Author | Khaindrava, V. G. Kozina, E. A. Kudrin, V. S. Kucheryanu, V. G. Klodt, P. D. Narkevich, V. B. Bocharov, E. V. Nanaev, A. K. Kryzhavsky, G. N. Raevskii, K. S. Ugrumov, M. V. |
| Copyright Year | 2011 |
| Abstract | Degeneration of dopaminergic (DAergic) neurons of the nigrostriatal system is the key stage in the pathogenesis of Parkinson’s disease. The fi rst symptoms of this disease are observed after degeneration of 70-80% neurons, which occurs over 20–30 years. The clinical stage of Parkinson’s disease begins after this period. Late diagnostics of Parkinson’s disease contributes to low effi ciency of therapi for this disorder. Detailed study of the pathogenesis and development of preclinical diagnostic methods for Parkinson’s disease are the urgent problems. This work was designed to develop a new experimental model of the preclinical and clinical stages of the disease. Experimental modeling was performed on C57Bl/6 mice using 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP). This agent is converted into the MPP+−neurotoxin in brain DAergic neurons. We showed that MPTP in a dose of 4 mg/kg has no effect on the nigrostriatal DAergic system. MPTP in a dose of 8–16 mg/kg produced the toxic effect only on DAergic axons, which simulates the preclinical stage of Parkinson’s disease. MPTP in a dose of 20–40 mg/kg had the toxic effect on neuronal axons and bodies, which simulates the clinical stage of Parkinson’s disease. The data suggest that progressive degeneration of DAergic neurons is accompanied by activation of compensatory mechanisms for functional defi ciency of these cells. |
| Starting Page | 566 |
| Ending Page | 569 |
| Page Count | 4 |
| File Format | |
| ISSN | 00074888 |
| Journal | Bulletin of Experimental Biology and Medicine |
| Volume Number | 150 |
| Issue Number | 5 |
| e-ISSN | 15738221 |
| Language | English |
| Publisher | Springer US |
| Publisher Date | 2011-03-25 |
| Publisher Place | Boston |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | brain dopamine substantia nigra tyrosine hydroxylase neurotoxin Internal Medicine Biomedicine general Cell Biology Laboratory Medicine Pathology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Medicine Biochemistry, Genetics and Molecular Biology |
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