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Perrusquia-Hernández E, Andrade-González RD, Cifuentes-Mendiola SE, Montes-Angeles CD, Zepeda-Reyes KI, Pérez-Martínez IO. Chemosensory representation of first-time oral exposure to ethanol in the orbitofrontal cortex of mice. Exp Brain Res 2023; 241:417-425. [PMID: 36571635 DOI: 10.1007/s00221-022-06529-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 12/07/2022] [Indexed: 12/27/2022]
Abstract
Intermittent ethanol consumption changes the neuronal activity of the orbitofrontal cortex (OFC) in rodents, which has been attributed to important participation in the development of addiction, particularly alcoholism. The OFC participates in gustatory sensory integration. However, it is unknown whether this region can encode chemosensory elements of oral ethanol administration independently of the consumption movement (orofacial motor response) when administered for the first time (naïve mice). To answer this question, we used a sedated mouse model and a temporary analysis protocol to register extracellular neuronal responses during the oral administration of ethanol. Our results show an increase in neuronal frequency (in the first 500 ms) when low (0.6, 1, and 2.1 M) and high (3.2, 4.3, and 8.6 M) concentrations of ethanol are orally administered. The modulatory effect of ethanol was observed from low and high concentrations and differed from the tastants. There was consistent neuronal activity independent of the concentration of ethanol. Our results demonstrate a sensory representation of oral ethanol stimulation in the OFC neurons of naïve mice under sedation.
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Affiliation(s)
- E Perrusquia-Hernández
- Sección de Neurobiología de las Sensaciones Orales, Laboratorio de Investigación Odontológica, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, San Sebastián Xhala, 54714, Cuautitlán Izcalli, Mexico.,Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina del Instituto Politécnico Nacional, Mexico City, Mexico
| | - R D Andrade-González
- Sección de Neurobiología de las Sensaciones Orales, Laboratorio de Investigación Odontológica, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, San Sebastián Xhala, 54714, Cuautitlán Izcalli, Mexico.,Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina del Instituto Politécnico Nacional, Mexico City, Mexico
| | - S E Cifuentes-Mendiola
- Sección de Osteoinmunología e Inmunidad Oral, Laboratorio de Investigación Odontológica, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - C D Montes-Angeles
- Sección de Neurobiología de las Sensaciones Orales, Laboratorio de Investigación Odontológica, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, San Sebastián Xhala, 54714, Cuautitlán Izcalli, Mexico
| | - K I Zepeda-Reyes
- Sección de Neurobiología de las Sensaciones Orales, Laboratorio de Investigación Odontológica, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, San Sebastián Xhala, 54714, Cuautitlán Izcalli, Mexico
| | - Isaac Obed Pérez-Martínez
- Sección de Neurobiología de las Sensaciones Orales, Laboratorio de Investigación Odontológica, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, San Sebastián Xhala, 54714, Cuautitlán Izcalli, Mexico.
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Andrade-González RD, Perrusquia-Hernández E, Montes-Ángeles CD, Castillo-Díaz LA, Hernández Campos ME, Pérez-Martínez IO. Encoding signs of orofacial neuropathic pain from facial expressions in mice. Arch Oral Biol 2022; 135:105369. [DOI: 10.1016/j.archoralbio.2022.105369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 02/02/2022] [Accepted: 02/03/2022] [Indexed: 11/02/2022]
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