| Autor: |
Tzu-Jen Kao, Cotero, Weiguo Song, Sangeeta S. Chavan, Zall Hirschstein, Linda Barenboim, Tea Tsaava, Tai N, Alex Devarajan, Herzog Ri, Tomás S. Huerta, Jacquelyn N. Tomaio, Yu-Shin Ding, Damaraju M, Christine A. Morton, Khaled Qanud, Maietta T, Kirk D. Wallace, John Frederick Graf, Thomas Coleman, Dino Di Carlo, Kevin J. Tracey, Kainat Akhtar, Stavros Zanos, Miwa H, Jimenez-Cowell K, Ying Fan, Madhavan R, Evelina Roxana Loghin, Damian S. Shin, Jeffrey Michael Ashe, Christopher Michael Puleo |
| Rok vydání: |
2021 |
| Předmět: |
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| DOI: |
10.1101/2021.04.16.440207 |
| Popis: |
While peripheral glucose sensors are known to relay signals of substrate availability to integrative nuclei in the brain, the importance of these pathways in maintaining energy homeostasis and their contribution to disease remain unknown. Herein, we demonstrate that selective activation of the hepatoportal neural plexus via transient peripheral focused ultrasound (pFUS) induces glucose homeostasis in models of well-established insulin resistant diabetes. pFUS modulates sensory projections to the hindbrain and alters hypothalamic concentrations of neurotransmitters that regulate metabolism, resulting in potentiation of hypothalamic insulin signaling, leptin-independent inhibition of the orexigenic neuropeptide Y system, and therapeutic alteration in autonomic output to peripheral effector organs. Multiomic profiling confirms pFUS-induced modifications of key metabolic functions in liver, pancreas, muscle, adipose, kidney, and intestines. Activation of the hepatic nutrient sensing pathway not only restores nervous system coordination of peripheral metabolism in three different species but does so across these organ systems; several of which are current targets of antidiabetic drug classes. These results demonstrate the potential of hepatic pFUS as a novel/non-pharmacologic therapeutic modality to restore glucose homeostasis in metabolic diseases, including type II diabetes.One Sentence SummaryWe utilize a non-invasive ultrasound technique to activate a liver-brain sensory pathway and demonstrate its potential to induce durable normalization of glucose homeostasis in models of well-established insulin resistant diabetes. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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