Intracerebroventricularly-administered 1-methyl-4-phenylpyridinium ion and brain-derived neurotrophic factor affect catecholaminergic nerve terminals and neurogenesis in the hippocampus, striatum and substantia nigra
| Autor: | Man Wang, Thomas Behnisch, Yinghan Zhuang, Jun-Fang Chen |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
0301 basic medicine
dopaminergic fibers medicine.medical_specialty hippocampus Parkinson's disease striatum Substantia nigra Striatum nerve regeneration Parkinson′s disease MPTP brain-derived neurotrophic factor intracerebroventricular infusion norepinephrine tyrosine hydroxylase substantia nigra neurogenesis neural regeneration lcsh:RC346-429 Subgranular zone 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine Developmental Neuroscience Neurotrophic factors Internal medicine medicine lcsh:Neurology. Diseases of the nervous system Brain-derived neurotrophic factor Chemistry Dentate gyrus Neurogenesis 030104 developmental biology Endocrinology medicine.anatomical_structure nervous system 030217 neurology & neurosurgery Research Article |
| Zdroj: | Neural Regeneration Research, Vol 13, Iss 4, Pp 717-726 (2018) Neural Regeneration Research |
| ISSN: | 1673-5374 |
| Popis: | Parkinson's disease is a progressive neurological disease characterized by the degeneration of dopaminergic neurons in the substantia nigra. A highly similar pattern of neurodegeneration can be induced by 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) or 1-methyl-4-phenylpyridinium ion (MPP+), which cause the death of dopaminergic neurons. Administration of MPTP or MPP+ results in Parkinson's disease-like symptoms in rodents. However, it remains unclear whether intracerebroventricular MPP+ administration affects neurogenesis in the substantia nigra and subgranular zone or whether brain-derived neurotrophic factor alters the effects of MPP+. In this study, MPP+ (100 nmol) was intracerebroventricularly injected into mice to model Parkinson's disease. At 7 days after administration, the number of bromodeoxyuridine (BrdU)-positive cells in the subgranular zone of the hippocampal dentate gyrus increased, indicating enhanced neurogenesis. In contrast, a reduction in BrdU-positive cells was detected in the substantia nigra. Administration of brain-derived neurotrophic factor (100 ng) 1 day after MPP+ administration attenuated the effect of MPP+ in the subgranular zone and the substantia nigra. These findings reveal the complex interaction between neurotrophic factors and neurotoxins in the Parkinsonian model that result in distinct effects on the catecholaminergic system and on neurogenesis in different brain regions. |
| Databáze: | OpenAIRE |
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