Transcriptomics

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Antagonistic modulation of NPY/AgRP and POMC neurons in the arcuate nucleus by noradrenaline


ABSTRACT: The arcuate nucleus of the hypothalamus (ARH) is one key structure controlling energy homeostasis. While it has been shown that the biogenic amines dopamine and serotonin modulate food intake controlling NPY/AgRP and/or POMC neurons in the ARH, the neural substrates that mediate the effect of noradrenaline (NA) on energy homeostasis remain elusive. By electrophysiological recordings and cell type-specific transcriptomics we show that the main neuronal populations in the ARH, NPY/AgRP and POMC neurons express a combination of excitatory and inhibitory adrenergic receptors (ARs). Surprisingly, NA had a clear differential effect on these neurons. Activation of NPY/AgRP neurons is mediated by _1A - and _- ARs, while POMC neurons are inhibited via _2A ARs. Collectively, our data indicate an orexigenic influence of NA on the ARH circuitry that controls energy balance

ORGANISM(S): Mus musculus

PROVIDER: GSE106188 | GEO | 2017/10/26

SECONDARY ACCESSION(S): PRJNA415839

REPOSITORIES: GEO

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