Intrathecal FMRFamide (Phe-Met-Arg-Phe-NH2) induces excessive grooming behavior in mice

Autor: Frank Porreca, Robert B. Raffa, Julius S. Heyman
Rok vydání: 1986
Předmět:
Zdroj: Neuroscience Letters. 65:94-98
ISSN: 0304-3940
DOI: 10.1016/0304-3940(86)90126-6
Popis: The molluscan neuropeptide Phe-Met-Arg-Phe-NH2 (FMRFamide) was administered intrathecally (i.t.) to mice and their behavior was monitored for 30 min. FMRFamide induced a dramatic and dose-related (5-12 micrograms) increase in grooming-related activities compared to saline-treated controls. The grooming behavior produced by 8 micrograms FMRFamide was not blocked by simultaneous i.t. administration of 10 micrograms of the following antagonists: atropine, phentolamine, methysergide, naloxone or spantide; peripheral administration of naloxone (3.5 mg/kg, s.c.) also failed to antagonize FMRFamide grooming. These data constitute the first report that FMRFamide produces behavioral changes in mammals.
Databáze: OpenAIRE