2022
AgRP neurons control structure and function of the medial prefrontal cortex
Stutz B, Waterson MJ, Šestan-Peša M, Dietrich MO, Škarica M, Sestan N, Racz B, Magyar A, Sotonyi P, Liu ZW, Gao XB, Matyas F, Stoiljkovic M, Horvath TL. AgRP neurons control structure and function of the medial prefrontal cortex. Molecular Psychiatry 2022, 27: 3951-3960. PMID: 35906488, PMCID: PMC9891653, DOI: 10.1038/s41380-022-01691-8.Peer-Reviewed Original ResearchConceptsMedial prefrontal cortexAgRP neuronsNon-selective dopamine receptor antagonistBrain functionPrefrontal cortexHypothalamic AgRP neuronsMedial thalamic neuronsAdministration of clozapineDopamine receptor antagonistVentral tegmental areaOscillatory network activityHigher-order brain functionsHypothalamic agoutiThalamic neuronsChemogenetic inhibitionDopaminergic neuronsReceptor antagonistTegmental areaNeuronal pathwaysSensorimotor gatingAdult miceModulatory impactAmbulatory behaviorConstitutive impairmentNeuronsAgRP neurons control feeding behaviour at cortical synapses via peripherally derived lysophospholipids
Endle H, Horta G, Stutz B, Muthuraman M, Tegeder I, Schreiber Y, Snodgrass IF, Gurke R, Liu ZW, Sestan-Pesa M, Radyushkin K, Streu N, Fan W, Baumgart J, Li Y, Kloss F, Groppa S, Opel N, Dannlowski U, Grabe HJ, Zipp F, Rácz B, Horvath TL, Nitsch R, Vogt J. AgRP neurons control feeding behaviour at cortical synapses via peripherally derived lysophospholipids. Nature Metabolism 2022, 4: 683-692. PMID: 35760867, PMCID: PMC9940119, DOI: 10.1038/s42255-022-00589-7.Peer-Reviewed Original ResearchConceptsFasting-induced hyperphagiaCortical excitabilityAgRP neuronsLysophosphatidic acidPeripheral metabolismHigher body mass indexFasting-induced elevationHypothalamic AgRP neuronsEffects of LPABody mass indexHigher cortical excitabilityBrain lipid levelsCentral nervous systemPrevalence of typeGlutamatergic transmissionHypothalamic agoutiMass indexOvernight fastingPeptide neuronsCortical synapsesLipid levelsFood intakeCerebrospinal fluidNervous systemPhospholipid levels
2021
Drp1 is required for AgRP neuronal activity and feeding
Jin S, Yoon NA, Liu ZW, Song JE, Horvath TL, Kim JD, Diano S. Drp1 is required for AgRP neuronal activity and feeding. ELife 2021, 10: e64351. PMID: 33689681, PMCID: PMC7946429, DOI: 10.7554/elife.64351.Peer-Reviewed Original ResearchConceptsAgRP neuronal activityFatty acid oxidationAgRP neuronsNeuronal activityAgRP neuronal functionHypothalamic AgRP neuronsBody weight regulationMitochondrial fatty acid utilizationWhole-body energy homeostasisHypothalamic orexigenic agoutiFatty acid utilizationAcid oxidationFat massCKO miceNeuronal activationPeptide-1Body weightNeuronal functionOrexigenic agoutiEnergy homeostasisMitochondrial fissionSignificant decreaseEnergy expenditureNeuronsAcid utilization