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A Hindbrain Inhibitory Microcircuit Mediates Vagally-Coordinated Glucose Regulation, Carie R. Boychuk, Katalin Cs. Smith, Laura E. Peterson, Jeffery A. Boychuk, Corwin R. Butler, Isabel D. Derera, John J. Mccarthy, Bret N. Smith
A Hindbrain Inhibitory Microcircuit Mediates Vagally-Coordinated Glucose Regulation, Carie R. Boychuk, Katalin Cs. Smith, Laura E. Peterson, Jeffery A. Boychuk, Corwin R. Butler, Isabel D. Derera, John J. Mccarthy, Bret N. Smith
Physiology Faculty Publications
Neurons in the brainstem dorsal vagal complex integrate neural and humoral signals to coordinate autonomic output to viscera that regulate a variety of physiological functions, but how this circuitry regulates metabolism is murky. We tested the hypothesis that premotor, GABAergic neurons in the nucleus tractus solitarius (NTS) form a hindbrain micro-circuit with preganglionic parasympathetic motorneurons of the dorsal motor nucleus of the vagus (DMV) that is capable of modulating systemic blood glucose concentration. In vitro, neuronal activation or inhibition using either excitatory or inhibitory designer receptor exclusively activated by designer drugs (DREADDs) constructs expressed in GABAergic NTS neurons increased …