Obesity remodels activity and transcriptional state of a lateral hypothalamic brake on feeding.

Published

Journal Article

The current obesity epidemic is a major worldwide health concern. Despite the consensus that the brain regulates energy homeostasis, the neural adaptations governing obesity are unknown. Using a combination of high-throughput single-cell RNA sequencing and longitudinal in vivo two-photon calcium imaging, we surveyed functional alterations of the lateral hypothalamic area (LHA)-a highly conserved brain region that orchestrates feeding-in a mouse model of obesity. The transcriptional profile of LHA glutamatergic neurons was affected by obesity, exhibiting changes indicative of altered neuronal activity. Encoding properties of individual LHA glutamatergic neurons were then tracked throughout obesity, revealing greatly attenuated reward responses. These data demonstrate how diet disrupts the function of an endogenous feeding suppression system to promote overeating and obesity.

Full Text

Duke Authors

Cited Authors

  • Rossi, MA; Basiri, ML; McHenry, JA; Kosyk, O; Otis, JM; van den Munkhof, HE; Bryois, J; Hübel, C; Breen, G; Guo, W; Bulik, CM; Sullivan, PF; Stuber, GD

Published Date

  • June 2019

Published In

Volume / Issue

  • 364 / 6447

Start / End Page

  • 1271 - 1274

PubMed ID

  • 31249056

Pubmed Central ID

  • 31249056

Electronic International Standard Serial Number (EISSN)

  • 1095-9203

International Standard Serial Number (ISSN)

  • 0036-8075

Digital Object Identifier (DOI)

  • 10.1126/science.aax1184

Language

  • eng