Melanin-concentrating hormone regulates the hypercapnic chemoreflex by acting in the lateral hypothalamic area
dc.contributor.author | Dias, Mirela B. [UNESP] | |
dc.contributor.author | Gargaglioni, Luciane H [UNESP] | |
dc.contributor.author | Patrone, Luis G.A. [UNESP] | |
dc.contributor.author | Rodrigues, Laísa TC | |
dc.contributor.institution | Universidade Estadual Paulista (Unesp) | |
dc.date.accessioned | 2022-06-20T18:14:40Z | |
dc.date.available | 2022-06-20T18:14:40Z | |
dc.date.issued | 2022 | |
dc.description | Melanin-concentrating hormone (MCH) is a hypothalamic neuropeptide involved in a broad range of homeostatic functions including regulation of the hypercapnic chemoreflex. We evaluated whether MCH modulates the hypercapnic ventilatory response by acting in the lateral hypothalamic area (LHA) and/or in the locus coeruleus (LC). Here, we measured pulmonary ventilation ( E), body temperature, EEG and EMG of unanesthetized male Wistar rats before and after microinjection of MCH [0.4 mM] into the LHA and LC, or the MCH1-R antagonist (SNAP-94847 [63 mM]), into the LHA, in room air and in 7% CO2 during wakefulness and sleep, in the dark and light periods. MCH intra-LHA caused a decreased CO2 ventilatory response during wakefulness and sleep, while SNAP-94847 intra-LHA increased this response, during wakefulness in the light period. In the LC, MCH or the MCH1-R antagonist caused no change in the hypercapnic ventilatory response. Our results suggest that MCH, in the LHA, exerts an inhibitory modulation of the hypercapnic ventilatory response during the light-inactive period in rats. | pt |
dc.description.sponsorship | Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) | |
dc.description.sponsorship | Coordenação de Aperfeiçoamento de Pessoal de Nivel Superior (CAPES) | |
dc.description.sponsorshipId | FAPESP:2019/17693-5 | |
dc.description.sponsorshipId | FAPESP: 2018/01781-0 | |
dc.description.sponsorshipId | CAPES: 88887.194785/2018-00 | |
dc.format | pt | |
dc.identifier.lattes | 3203493045928389 | |
dc.identifier.lattes | 5850453468994497 | |
dc.identifier.lattes | 8833369074938340 | |
dc.identifier.orcid | 0000-0002-4084-3139 | |
dc.identifier.orcid | 0000-0002-8270-1892 | |
dc.identifier.orcid | 0000-0003-4097-5286 | |
dc.identifier.orcid | 0000-0003-3704-6099 | |
dc.identifier.uri | http://hdl.handle.net/11449/235199 | |
dc.language.iso | eng | |
dc.rights.accessRights | Acesso aberto | |
dc.rights.holder | Experimental Physiology | pt |
dc.subject | Breathing | pt |
dc.subject | Chemoreceptors | pt |
dc.subject | Hypothalamus | pt |
dc.subject | Breathing | pt |
dc.title | Melanin-concentrating hormone regulates the hypercapnic chemoreflex by acting in the lateral hypothalamic area | pt |
dc.type | Dado de pesquisa | |
unesp.campus | Universidade Estadual Paulista (Unesp), Instituto de Biociências, Botucatu | pt |
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