The MPTP-Induced Parkinsonian Syndrome in the Goldfish Is Associated with Major Cell Destruction in the Forebrain and Subtle Changes in the Optic Tectum
| Autor: | Harvey B. Pollard, Gertrud Goping, Gemma A. J. Kuijpers, Moussa B.H. Youdim, Oluwadare M. Adeyemo |
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| Rok vydání: | 1996 |
| Předmět: |
Superior Colliculi
medicine.medical_specialty Ependymal Cell Dopamine animal diseases Substantia nigra Biology Midbrain chemistry.chemical_compound Prosencephalon Neurochemical Developmental Neuroscience Goldfish Internal medicine medicine Animals Neurotoxin Visual Pathways Neurons Afferent Parkinson Disease Secondary Cell Size Cell Nucleus Behavior Animal Dose-Response Relationship Drug MPTP Cell Compartmentation nervous system diseases Common goldfish Microscopy Electron Endocrinology nervous system Neurology chemistry 1-Methyl-4-phenyl-1 2 3 6-tetrahydropyridine Forebrain sense organs Neuroscience |
| Zdroj: | Experimental Neurology. 142:170-178 |
| ISSN: | 0014-4886 |
| DOI: | 10.1006/exnr.1996.0188 |
| Popis: | The neurotoxin 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) can induce a parkinsonian syndrome in humans and nonhuman primates, which is susceptible to treatment and prevention by drugs such as L-DOPA and L-deprenyl. Recently, we have reported that MPTP can also cause a parkinsonian syndrome in the common goldfish, which appears to faithfully mirror the neurochemical and behavioral aspects of the action of MPTP in the higher vertebrates. In addition, we recently identified the likely teleost equivalent of the substantia nigra in the goldfish forebrain, the "nucleus pars medialis," on the basis of its destruction by MPTP and selective protection by the MAO-B blocker L-deprenyl. In the present work we substantiate this conclusion by examining tissue destruction the goldfish forebrain at increasing MPTP concentrations, up to the the LD50 of 200 mg/kg. In addition, we show that at the highest MPTP dose subtle changes also occur with low frequency in nondopaminergic cells in the optic tectum, and in ependymal cells lining the midbrain ventricle. The effects on ependymal cells are similar to those previously noted in the forebrain. We conclude that the goldfish model continues to faithfully mimic the histologic pattern of parkinsonian tissue destruction engendered by MPTP in primate models. |
| Databáze: | OpenAIRE |
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