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Tendilla-Beltrán H, Coatl-Cuaya H, Meneses-Prado S, Vázquez-Roque RA, Brambila E, Tapia-Rodríguez M, Martín-Hernández D, Garcés-Ramírez L, Madrigal JLM, Leza JC, Flores G. Neuroplasticity and inflammatory alterations in the nucleus accumbens are corrected after risperidone treatment in a schizophrenia-related developmental model in rats. Schizophr Res 2021; 235:17-28. [PMID: 34298239 DOI: 10.1016/j.schres.2021.07.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 07/04/2021] [Accepted: 07/11/2021] [Indexed: 12/18/2022]
Abstract
Increased dopaminergic activity in the striatum underlies the neurobiology of psychotic symptoms in schizophrenia (SZ). Beyond the impaired connectivity among the limbic system, the excess of dopamine could lead to inflammation and oxidative/nitrosative stress. It has been suggested that atypical antipsychotic drugs attenuate psychosis not only due to their modulatory activity on the dopaminergic/serotonergic neurotransmission but also due to their anti-inflammatory/antioxidant effects. In such a manner, we assessed the effects of the atypical antipsychotic risperidone (RISP) on the structural neuroplasticity and biochemistry of the striatum in adult rats with neonatal ventral hippocampus lesion (NVHL), which is a developmental SZ-related model. RISP administration (0.25 mg/kg, i.p.) ameliorated the neuronal atrophy and the impairments in the morphology of the dendritic spines in the spiny projection neurons (SPNs) of the ventral striatum (nucleus accumbens: NAcc) in the NVHL rats. Also, RISP treatment normalized the pro-inflammatory pathways and induced the antioxidant activity of the nuclear factor (erythroid-derived 2)-like 2 (Nrf2) in this model. Our results point to the neurotrophic, anti-inflammatory, and antioxidant effects of RISP, together with its canonical antipsychotic mechanism, to enhance striatum function in animals with NVHL.
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Affiliation(s)
- Hiram Tendilla-Beltrán
- Instituto de Fisiología, Benemérita Universidad Autónoma de Puebla (BUAP), Puebla 72570, Mexico; Escuela Nacional de Ciencias Biológicas (ENCB), Instituto Politécnico Nacional (IPN), CDMX 11340, Mexico; Departamento de Farmacología y Toxicología, Facultad de Medicina, Universidad Complutense de Madrid (UCM), Madrid 28040, Spain; Instituto Universitario de Investigación en Neuroquímica (IUIN), UCM, Spain
| | - Heriberto Coatl-Cuaya
- Instituto de Fisiología, Benemérita Universidad Autónoma de Puebla (BUAP), Puebla 72570, Mexico; Escuela Nacional de Ciencias Biológicas (ENCB), Instituto Politécnico Nacional (IPN), CDMX 11340, Mexico
| | - Silvia Meneses-Prado
- Instituto de Fisiología, Benemérita Universidad Autónoma de Puebla (BUAP), Puebla 72570, Mexico
| | | | | | - Miguel Tapia-Rodríguez
- Instituto de Investigaciones Biomédicas (IIBO), Universidad Nacional Autónoma de México (UNAM), CDMX 04510, Mexico
| | - David Martín-Hernández
- Servicio de Psiquiatría del Niño y del Adolescente, Instituto de Psiquiatría y Salud Mental, Hospital General Universitario Gregorio Marañón, Facultad de Medicina, Universidad Complutense, IiSGM, CIBERSAM, Madrid, Spain
| | - Linda Garcés-Ramírez
- Escuela Nacional de Ciencias Biológicas (ENCB), Instituto Politécnico Nacional (IPN), CDMX 11340, Mexico
| | - José L M Madrigal
- Departamento de Farmacología y Toxicología, Facultad de Medicina, Universidad Complutense de Madrid (UCM), Madrid 28040, Spain; Instituto Universitario de Investigación en Neuroquímica (IUIN), UCM, Spain; Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Instituto de Investigación Sanitaria Hospital 12 de Octubre (Imas12), Madrid 28029, Spain
| | - Juan C Leza
- Departamento de Farmacología y Toxicología, Facultad de Medicina, Universidad Complutense de Madrid (UCM), Madrid 28040, Spain; Instituto Universitario de Investigación en Neuroquímica (IUIN), UCM, Spain; Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Instituto de Investigación Sanitaria Hospital 12 de Octubre (Imas12), Madrid 28029, Spain.
| | - Gonzalo Flores
- Instituto de Fisiología, Benemérita Universidad Autónoma de Puebla (BUAP), Puebla 72570, Mexico.
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