Publication Date:
2013-09-28
Description:
The growing prevalence of overeating disorders is a key contributor to the worldwide obesity epidemic. Dysfunction of particular neural circuits may trigger deviations from adaptive feeding behaviors. The lateral hypothalamus (LH) is a crucial neural substrate for motivated behavior, including feeding, but the precise functional neurocircuitry that controls LH neuronal activity to engage feeding has not been defined. We observed that inhibitory synaptic inputs from the extended amygdala preferentially innervate and suppress the activity of LH glutamatergic neurons to control food intake. These findings help explain how dysregulated activity at a number of unique nodes can result in a cascading failure within a defined brain network to produce maladaptive feeding.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4131546/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉 〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4131546/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jennings, Joshua H -- Rizzi, Giorgio -- Stamatakis, Alice M -- Ung, Randall L -- Stuber, Garret D -- AA011605/AA/NIAAA NIH HHS/ -- AA022234/AA/NIAAA NIH HHS/ -- DA032750/DA/NIDA NIH HHS/ -- DA034472/DA/NIDA NIH HHS/ -- F31 DA034472/DA/NIDA NIH HHS/ -- NS007431/NS/NINDS NIH HHS/ -- P30 NS045892/NS/NINDS NIH HHS/ -- P50 AA011605/AA/NIAAA NIH HHS/ -- R01 DA032750/DA/NIDA NIH HHS/ -- New York, N.Y. -- Science. 2013 Sep 27;341(6153):1517-21. doi: 10.1126/science.1241812.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24072922" target="_blank"〉PubMed〈/a〉
Keywords:
Adaptation, Physiological
;
Amygdala/physiology
;
Animals
;
Bacterial Proteins/genetics/metabolism
;
Eating/*physiology
;
Feeding Behavior/*physiology
;
GABAergic Neurons/*physiology
;
Hypothalamus/*physiology
;
Luminescent Proteins/genetics/metabolism
;
Male
;
Mice
;
Mice, Mutant Strains
;
Obesity/physiopathology
;
Rhodopsin/genetics/metabolism
;
Septal Nuclei/physiology
;
Synapses/physiology
;
gamma-Aminobutyric Acid/metabolism/physiology
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
Permalink