Subcutaneous injection of an analog of neuropeptide FF precipitates morphine abstinence syndrome.
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Neuropeptide FF (NPFF) has been shown to exert various antiopiate actions, including precipitation of opiate abstinence syndrome by third ventricle injection in morphine dependent rats. In the present study, dansyl-Pro-Gln-Arg-Phe-amide, a lipophilic analog of NPFF, was injected into morphine dependent rats and appropriate sham controls at a dose of 9 mg/kg s.c. Comparison groups were injected with ethanol/water vehicle alone. The NPFF analog precipitated a vigorous opiate abstinence syndrome in morphine dependent rats, but not in sham controls.
author list (cited authors)
Malin, D. H., Lake, J. R., Arcangeli, K. R., Deshotel, K. D., Hausam, D. D., Witherspoon, W. E., ... Burgess, K.
complete list of authors
Malin, DH||Lake, JR||Arcangeli, KR||Deshotel, KD||Hausam, DD||Witherspoon, WE||Carter, VA||Yang, HY||Pal, B||Burgess, K