ArticleNature communications2026
Reduced melanocortin tone modulates feeding during pregnancy in mice.
Article in Nature communications, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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9 authors.
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Abstract
During pregnancy mammals increase their food intake to accommodate the elevated metabolic demands associated with fetal growth and development. However, the molecular and neural circuit mechanisms mediating increased feeding during pregnancy are largely unknown. Here, we demonstrate that arcuate nucleus agouti-related peptide (AgRP) neurons are activated and pro-opiomelanocortin (POMC) neurons are inhibited during pregnancy in mice. These changes are acutely required for promoting hyperphagia during pregnancy as chemogenetic inhibition of AgRP neurons or activation of POMC neurons both reduced the feeding of pregnant mice to non-pregnant levels. Finally, we utilized single cell resolution spatial transcriptomics in the arcuate nucleus of non-pregnant and pregnant mice to characterize pregnancy-induced changes in the transcriptomic state of arcuate nucleus neurons, including significant changes in many neurons controlling energy homeostasis, including AgRP and POMC neurons. Together, these findings outline a circuit mechanism regulating increased feeding during pregnancy, providing important mechanistic insights related to conditions at the intersection of reproduction and metabolism.
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