Glucagon-like peptide 1 (GLP-1) receptor-expressing neurons in the paraventricular nucleus of the hypothalamus send descending excitatory projections to the dorsal vagal complex of the brainstem. GLP-1 signalling regulates synaptic transmission in this circuit in an energy state-dependent manner to control feeding and energy homeostasis.
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References
Drucker, D. J. GLP-1 physiology informs the pharmacotherapy of obesity. Mol. Metab. 57, 101351 (2022). A review article that provides an excellent overview of GLP-1 and GLP-1 analogues.
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This is a summary of: Wang, L. et al. State-dependent central synaptic regulation by GLP-1 is essential for energy homeostasis. Nat. Metab. https://doi.org/10.1038/s42255-025-01305-x (2025).
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GLP-1-mediated synaptic plasticity in feeding regulation is modulated by energy state. Nat Metab 7, 1318–1319 (2025). https://doi.org/10.1038/s42255-025-01304-y
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DOI: https://doi.org/10.1038/s42255-025-01304-y