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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Neural substrate for an integrated metabolic control of feeding behavior.

Evidence indicates that feeding behavior in rats is controlled by a mechanism that integrates information about different aspects of fuel metabolism. We investigated the neural substrate for this integrated control by measuring the effect of metabolic inhibitors given alone and in combination on food intake and neuronal activity as reflected by the expression of c-Fos protein. Combined administration of methyl palmoxirate (5 mg/kg po), an inhibitor of fatty acid oxidation, and 2,5-anhydro-D-mannitol (150 mg/kg ip), which decreases liver ATP content, increased feeding in rats more than expected on the basis of eating responses after treatment with either inhibitor given alone. Combined treatment also produced a synergistic increase in Fos-like immunoreactivity in several brain areas, including the nucleus of the solitary tract, area postrema, and parvocellular portion of the hypothalamic paraventricular nucleus. These findings provide strong evidence for the involvement of selected brain regions in the metabolic control of food intake and suggest that metabolic information used to control feeding behavior is integrated in the periphery or at the level of the brain stem.[1]


  1. Neural substrate for an integrated metabolic control of feeding behavior. Horn, C.C., Addis, A., Friedman, M.I. Am. J. Physiol. (1999) [Pubmed]
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