Bombesin suppresses need-free and need-induced salt intake in rats.

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Abstract
The researchers performed experiments to evaluate whether the effects of bombesin are selective for the satiation of ingestive behaviors related to energy balance or if ingestive behaviors associated with sodium balance are also suppressed by bombesin. Injections of 4 and 8 micrograms/kg bombesin reliably reduced need-free and sodium deficiency-induced NaCl intake in male rats. The effects of bombesin on the sodium-deficiency-induced change in taste reactivity was assessed. Injections of 4 micrograms/kg and 8 micrograms/kg bombesin had no effect on the sodium deficiency-induced shift in taste reactivity. These data indicate that bombesin suppresses NaCl intake and that bombesin does not appear to interact with gustatory sensibility in exerting its behavior-controlling action.

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