Sensory-motor performance after acute glutathione depletion by l-buthionine sulfoximine injection into substantia nigra pars compacta
| Autor: | Eduardo Orta, Mei-Li Díaz-Hung, Lisette Blanco, Nancy Pavón, Rilda León, Bárbara Estupiñan, Klaudia Martínez, Isabel Fernández |
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| Rok vydání: | 2014 |
| Předmět: |
Male
medicine.medical_specialty Antioxidant Microinjections Tyrosine 3-Monooxygenase medicine.medical_treatment Substantia nigra Striatum Motor Activity Rats Sprague-Dawley Behavioral Neuroscience chemistry.chemical_compound Internal medicine Glial Fibrillary Acidic Protein medicine Animals Buthionine sulfoximine Buthionine Sulfoximine Pars Compacta Glial fibrillary acidic protein biology Tyrosine hydroxylase Pars compacta Dopaminergic Neurons Glutathione Corpus Striatum Rats Endocrinology nervous system chemistry Biochemistry biology.protein Locomotion Psychomotor Performance |
| Zdroj: | Behavioural Brain Research. 271:286-293 |
| ISSN: | 0166-4328 |
| Popis: | Glutathione is the major antioxidant in the living cells. Its deficit has been linked to neurodegenerative disorders as Parkinson's disease but its role in the etiology of nigral degeneration and sensory-motor performance has been poorly explored. To evaluate the effect of glutathione depletion on nigro-striatal oxidative metabolism and sensory-motor performance in rats, l-buthionine sulfoximine (15 mM) or saline solution was injected into substantia nigra pars compacta (SNpc). Then, oxidative metabolism was studied 24h and 7 days later in SNpc and corpus striatum (CS). Tyrosine hydroxylase and GFAP immunohistochemistry assays were carried out at 7 days. In addition, animals were evaluated in open field, adhesive removal, staircase and traverse beam tests. Glutathione depletion induced compensatory response in catalase activity and glial response in the in SNpc and no oxidative damage was observed. However, a loss in dopaminergic cells was found. At the same time, animals with glutathione depletion have shown poor performance in behavioral tests except for staircase test. These results suggest that glutathione depletion can be related to sensory-motor dysfunction. |
| Databáze: | OpenAIRE |
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