Behavioral deficit, oxidative stress, and mitochondrial dysfunction precede tau pathology in P301S transgenic mice
| العنوان: | Behavioral deficit, oxidative stress, and mitochondrial dysfunction precede tau pathology in P301S transgenic mice |
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| المؤلفون: | Magali Dumont, Natalia N. Starkova, Cliona Stack, Ceyhan Elipenahli, Flint Beal, Meri Gerges, Lichuan Yang, Anatoly A. Starkov, Shari Jainuddin |
| المصدر: | The FASEB Journal. 25:4063-4072 |
| بيانات النشر: | Wiley, 2011. |
| سنة النشر: | 2011 |
| مصطلحات موضوعية: | Male, Aging, medicine.medical_specialty, Citric Acid Cycle, Spatial Behavior, Mice, Transgenic, Mitochondrion, medicine.disease_cause, Biochemistry, Research Communications, Electron Transport, Glycogen Synthase Kinase 3, Mice, GSK-3, Internal medicine, Genetics, medicine, Animals, Citrate synthase, Cytochrome c oxidase, Molecular Biology, GSK3B, Glycogen Synthase Kinase 3 beta, Behavior, Animal, biology, Neurodegeneration, medicine.disease, Mitochondria, Oxidative Stress, Endocrinology, Tauopathies, Exploratory Behavior, biology.protein, Female, Tauopathy, Reactive Oxygen Species, Locomotion, Oxidative stress, Biotechnology |
| الوصف: | Abnormal tau accumulation can lead to the development of neurodegenerative diseases. P301S mice overexpress the human tau mutated gene, resulting in tau hyperphosphorylation and tangle formation. Mice also develop synaptic deficits and microglial activation prior to any neurodegeneration and tangles. Oxidative stress can also affect tauopathy. We studied the role of oxidative stress in relationship to behavioral abnormalities and disease progression in P301S mice at 2, 7, and 10 mo of age. At 7 mo of age, P301S mice had behavioral abnormalities, such as hyperactivity and disinhibition. At the same age, we observed increased carbonyls in P301S mitochondria (∼215 and 55% increase, males/females), and deregulation in the activity and content of mitochondrial enzymes involved in reactive oxygen species formation and energy metabolism, such as citrate synthase (∼19 and ∼5% decrease, males/females), MnSOD (∼16% decrease, males only), cytochrome C (∼19% decrease, females only), and cytochrome C oxidase (∼20% increase, females only). These changes in mitochondria proteome appeared before tau hyperphosphorylation and tangle formation, which were observed at 10 mo and were associated with GSK3β activation. At that age, mitochondria proteome deregulation became more apparent in male P301S mitochondria. The data strongly suggest that oxidative stress and mitochondrial abnormalities appear prior to tau pathology.—Dumont, M., Stack, C., Elipenahli, C., Jainuddin, S., Gerges, M., Starkova, M. N., Yang, L., Starkov, A. A., Beal, F. Behavioral deficit, oxidative stress, and mitochondrial dysfunction precede tau pathology in P301S transgenic mice. |
| تدمد: | 1530-6860 0892-6638 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0dd8214df559fc1c229cb14fcd159a7d https://doi.org/10.1096/fj.11-186650 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....0dd8214df559fc1c229cb14fcd159a7d |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15306860 08926638 |
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