title: Isoquinoline alkaloids from Argemone mexicana reduce morphine withdrawal in guinea pig isolated ileum.
abstract: The present study examined the effect of the MeOH extract, partially purified fraction (IV), and pure compounds from Argemone mexicana L. (Papaveraceae) on the morphine withdrawal in guinea pig isolated ileum. The MeOH extract, the partially purified fraction (IV), and the pure compounds isolated from A. mexicana significantly and in a concentration-dependent manner reduced the morphine withdrawal. Since the pure compounds were identified as protopine and allocryptopine, the observed effects could be related to these compounds. The results of the present study suggest that isoquinoline alkaloids may be potential agents in the treatment of drug abuse.
authors.affiliation: School of Pharmacy, University of Salerno, Italy.
authors.forename: A
authors.initials: A
authors.lastname: Capasso
authors.forename: S
authors.initials: S
authors.lastname: Piacente
authors.forename: C
authors.initials: C
authors.lastname: Pizza
authors.forename: N
authors.initials: N
authors.lastname: De Tommasi
authors.forename: C
authors.initials: C
authors.lastname: Jativa
authors.forename: L
authors.initials: L
authors.lastname: Sorrentino
mesh_terms: D000470:Alkaloids / Q000302:isolation & purification / Q000494:pharmacology* / Q000627:therapeutic use; D000818:Animals; D006168:Guinea Pigs; D007082:Ileum / Q000187:drug effects*; D066298:In Vitro Techniques; D008297:Male; D009020:Morphine / Q000009:adverse effects*; D010946:Plants, Medicinal / Q000737:chemistry*; D013375:Substance Withdrawal Syndrome / Q000188:drug therapy*
chemical_list: D000470:Alkaloids; D009020:Morphine