The expression of GLP‐1 receptor mRNA and protein allows the effect of GLP‐1 on glucose metabolism in the human hypothalamus and brainstem
dc.contributor.author | Álvarez García, Elvira | |
dc.contributor.author | Martínez Ibáñez, María Dolores | |
dc.contributor.author | Roncero Rincón, Isabel | |
dc.contributor.author | Chowen, Julie A. | |
dc.contributor.author | García Cuartero, Beatriz | |
dc.contributor.author | Gispert, Juan D. | |
dc.contributor.author | Sanz Miguel, María Del Carmen | |
dc.contributor.author | Vázquez Pérez, Patricia | |
dc.contributor.author | Antonio, Maldonado | |
dc.contributor.author | De Cáceres, Javier | |
dc.contributor.author | Desco, Manuel | |
dc.contributor.author | Pozo García, Miguel Ángel | |
dc.contributor.author | Blázquez Fernández, Enrique | |
dc.date.accessioned | 2024-01-29T15:33:08Z | |
dc.date.available | 2024-01-29T15:33:08Z | |
dc.date.issued | 2005 | |
dc.description.abstract | In the present work, several experimental approaches were used to determine the presence of the glucagon-like peptide-1 receptor (GLP-1R) and the biological actions of its ligand in the human brain. In situ hybridization histochemistry revealed specific labelling for GLP-1 receptor mRNA in several brain areas. In addition, GLP-1R, glucose transporter isoform (GLUT-2) and glucokinase (GK) mRNAs were identified in the same cells, especially in areas of the hypothalamus involved in feeding behaviour. GLP-1R gene expression in the human brain gave rise to a protein of 56 kDa as determined by affinity cross-linking assays. Specific binding of 125I-GLP-1(7-36) amide to the GLP-1R was detected in several brain areas and was inhibited by unlabelled GLP-1(7-36) amide, exendin-4 and exendin (9-39). A further aim of this work was to evaluate cerebral-glucose metabolism in control subjects by positron emission tomography (PET), using 2-[F-18] deoxy-D-glucose (FDG). Statistical analysis of the PET studies revealed that the administration of GLP-1(7-36) amide significantly reduced (p < 0.001) cerebral glucose metabolism in hypothalamus and brainstem. Because FDG-6-phosphate is not a substrate for subsequent metabolic reactions, the lower activity observed in these areas after peptide administration may be due to reduction of the glucose transport and/or glucose phosphorylation, which should modulate the glucose sensing process in the GLUT-2- and GK-containing cells. | en |
dc.description.department | Depto. de Bioquímica y Biología Molecular | |
dc.description.faculty | Fac. de Medicina | |
dc.description.refereed | TRUE | |
dc.description.status | pub | |
dc.identifier.citation | Alvarez E, Martínez MD, Roncero I, et al. The expression of GLP-1 receptor mRNA and protein allows the effect of GLP-1 on glucose metabolism in the human hypothalamus and brainstem. J Neurochem. 2005;92(4):798-806. doi:10.1111/j.1471-4159.2004.02914.x | |
dc.identifier.doi | 10.1111/j.1471-4159.2004.02914.x | |
dc.identifier.issn | 0022-3042 | |
dc.identifier.issn | 1471-4159 | |
dc.identifier.officialurl | https://doi.org/10.1111/j.1471-4159.2004.02914.x | |
dc.identifier.uri | https://hdl.handle.net/20.500.14352/96176 | |
dc.issue.number | 4 | |
dc.journal.title | Journal of Neurochemistry | |
dc.language.iso | eng | |
dc.page.final | 806 | |
dc.page.initial | 798 | |
dc.rights | Attribution 4.0 International | en |
dc.rights.accessRights | open access | |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | |
dc.subject.cdu | 612.017 | |
dc.subject.keyword | Biological effects | |
dc.subject.keyword | Gene expression | |
dc.subject.keyword | Glucagon-likepeptide-1 receptor | |
dc.subject.keyword | Glucose sensing | |
dc.subject.keyword | Human brain | |
dc.subject.ucm | Ciencias Biomédicas | |
dc.subject.unesco | 24 Ciencias de la Vida | |
dc.title | The expression of GLP‐1 receptor mRNA and protein allows the effect of GLP‐1 on glucose metabolism in the human hypothalamus and brainstem | en |
dc.type | journal article | |
dc.type.hasVersion | VoR | |
dc.volume.number | 92 | |
dspace.entity.type | Publication | |
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relation.isAuthorOfPublication.latestForDiscovery | 14257552-0618-4a80-a697-15d4084de45d |
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