| First Author | Varela L | Year | 2017 |
| Journal | Diabetes | Volume | 66 |
| Issue | 6 | Pages | 1511-1520 |
| PubMed ID | 28292966 | Mgi Jnum | J:246244 |
| Mgi Id | MGI:5924376 | Doi | 10.2337/db16-1106 |
| Citation | Varela L, et al. (2017) Endothelial HIF-1alpha Enables Hypothalamic Glucose Uptake to Drive POMC Neurons. Diabetes 66(6):1511-1520 |
| abstractText | Glucose is the primary driver of hypothalamic proopiomelanocortin (POMC) neurons. We show that endothelial hypoxia-inducible factor 1alpha (HIF-1alpha) controls glucose uptake in the hypothalamus and that it is upregulated in conditions of undernourishment, during which POMC neuronal activity is decreased. Endothelium-specific knockdown of HIF-1alpha impairs the ability of POMC neurons to adapt to the changing metabolic environment in vivo, resulting in overeating after food deprivation in mice. The impaired functioning of POMC neurons was reversed ex vivo or by parenchymal glucose administration. These observations indicate an active role for endothelial cells in the central control of metabolism and suggest that central vascular impairments may cause metabolic disorders. |
