Resumen

LOPEZ ALONSO, Verónica Elsa et al. Administration of 8-OH-DPAT in the ventromedial hypothalamic nucleus: characterization of feeding behavior. Rev. mex. anál. conducta [online]. 2010, vol.36, n.2, pp.21-37. ISSN 0185-4534.

The present study evaluated the effects of 5-HT_1A receptor agonist 8-OH-DPAT on the Behavioral Satiety Sequence (BSS) in rats. The 8-OH-DPAT was administered via central in the hypothalamic ventromedial nucleus (VMN) in rats. The experimental subjects were kept under a dietary self-selection paradigm consisting of proteins, carbohydrates and fats. Food and water were available all the time. Intra-VMN administration of 5-HT_1A agonist was associated with the selective increase in carbohydrate intake. The BSS analysis revealed that the administration of 8-OH-DPAT delayed the natural development of the BSS. The results lead to the conclusion that 5-HT_1A receptors in the NVH involved in the modulation of food intake, is discussed the possible involvement of interactions with other neurotransmitters systems.

Palabras llave : 5-HT_1A agonist; food intake; behavioral satiety sequence.

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