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Control of Hunger by Arcuate (ARC) → Paraventricular (PVH) Hypothalamic Circuits

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Air date: Monday, November 19, 2018, 12:00:00 PM
Time displayed is Eastern Time, Washington DC Local
Views: Total views: 160, (27 Live, 133 On-demand)
Category: Neuroscience
Runtime: 00:58:37
Description: NIH Neuroscience Series Seminar

Dr. Lowell lab utilizes genetic engineering techniques in mice, in conjunction with electrophysiology, optogenetics, pharmacogenetics and rabies mapping, to elucidate central neurocircuits controlling feeding behavior, body weight homeostasis, and fuel metabolism. Specifically, transgenic, knockout, knockin, and cre-dependent AAV viral approaches (for delivery of optogenetic, DREADD and monosynaptic rabies reagents) are used to manipulate and map neuronal circuits. The goal of these studies is to link neurobiologic processes within defined sets of neurons with specific behaviors and physiologic responses. The ultimate goal is to mechanistically understand the “neurocircuit basis” for regulation of food intake, energy expenditure and glucose homeostasis. Given their expertise in gene knockout and transgenic technology, they can efficiently and rapidly create numerous lines of genetically engineered mice, important examples being neuron-specific ires-Cre knockin mice, which enable cre-dependent AAV technology. This allows them to bring novel, powerful approaches to bear on the neural circuits underlying behavior and metabolism. Their combined use of mouse genetic engineering, brain slice electrophysiology, and whole animal physiology is ideally suited to studying these problems.

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Author: Bradford Lowell, M.D., Ph.D., Harvard University
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CIT Live ID: 28079
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