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Synaptic release of GABA by AgRP neurons is required for normal regulation of energy balance.

ABSTRACT: The physiologic importance of GABAergic neurotransmission in hypothalamic neurocircuits is unknown. To examine the importance of GABA release from agouti-related protein (AgRP) neurons (which also release AgRP and neuropeptide Y), we generated mice with an AgRP neuron-specific deletion of vesicular GABA transporter. These mice are lean, resistant to obesity and have an attenuated hyperphagic response to ghrelin. Thus, GABA release from AgRP neurons is important in regulating energy balance.

SUBMITTER: Tong Q

PROVIDER: S-EPMC2662585 | biostudies-literature | 2008 Sep

REPOSITORIES: biostudies-literature

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Synaptic release of GABA by AgRP neurons is required for normal regulation of energy balance.

Tong Qingchun Q Ye Chian-Ping CP Jones Juli E JE Elmquist Joel K JK Lowell Bradford B BB

Nature neuroscience 20080901 9

The physiologic importance of GABAergic neurotransmission in hypothalamic neurocircuits is unknown. To examine the importance of GABA release from agouti-related protein (AgRP) neurons (which also release AgRP and neuropeptide Y), we generated mice with an AgRP neuron-specific deletion of vesicular GABA transporter. These mice are lean, resistant to obesity and have an attenuated hyperphagic response to ghrelin. Thus, GABA release from AgRP neurons is important in regulating energy balance. ...[more]

PMID: 19160495

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