Motor Coordination Disorders Evaluated through the Grid Test and Changes in the Nigral Nrf2 mRNA Expression in Rats with Pedunculopontine Lesion
| Autor: | María Elena González Fraguela, Yamilé Vega Hurtado, Lisette Blanco Lezcano, Liliana Francis Turner, Teresa Serrano Sánchez, Guadalupe Zaldívar Lelo de Larrea, Bárbara Estupiñán Díaz, Nadia Angélica Jiménez Luna, Isabel Fernández Jiménez, Dianet Camejo Rodríguez, Esteban Alberti Amador, Rosa Martha Pérez Serrano |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
medicine.medical_specialty
Mrna expression lcsh:BF1-990 Development medicine.disease_cause Post injury grid test Lesion 03 medical and health sciences Behavioral Neuroscience 0302 clinical medicine Internal medicine Genetics medicine General Psychology Ecology Evolution Behavior and Systematics 030304 developmental biology Pedunculopontine nucleus 0303 health sciences business.industry Neurodegeneration pedunculopontine nucleus neurodegeneration medicine.disease Motor coordination Nrf2 Endocrinology lcsh:Psychology medicine.symptom business Neurotoxic lesion 030217 neurology & neurosurgery Oxidative stress |
| Zdroj: | Behavioral Sciences, Vol 10, Iss 156, p 156 (2020) Behavioral Sciences Volume 10 Issue 10 |
| Popis: | Neurotoxic lesion of the pedunculopontine nucleus (PPN) is known to cause subtle motor dysfunctions. However, motor coordination during advance on a discontinuous and elevated surface has not been studied. It is also not known whether there are changes in the mRNA expression of nuclear factor (erythroid-derived 2)-like 2 (Nrf2) in nigral tissue. Methods: The effects of the unilateral neurotoxic lesion of the PPN in motor coordination evaluated through grid test and Nrf2 mRNA expression in nigral tissue were evaluated. Two experimental designs (ED) were organized: ED#1 behavioral study (7 and 30 days after PPN lesion) and ED#2 molecular biology study (24 h, 48 h and 7 days) after PPN lesion. Results: ED#1&mdash The number of faults made with left limbs, were significant higher in the lesioned groups (p < 0.01) both 7 and 30 days post-lesion. The number of failures made by the right limbs, was also significantly higher (p < 0.05) vs. control groups. ED#2&mdash Nrf2 mRNA expression showed an increase 24 h after PPN injury (p < 0.01), followed by a peak of expression 48 h post injury (p < 0.001). Conclusions: Disorders of motor coordination associated with PPN injury are bilateral. The increased Nrf2 mRNA expression could represent an adaptive response to oxidative stress in the nigral tissue following pontine injury. |
| Databáze: | OpenAIRE |
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