title: Susceptibility of Colombian Plasmodium falciparum isolates to 4-aminoquinolines and the definition of amodiaquine resistance in vitro.
abstract: There are wide variations in the threshold used to define in vitro resistance of Plasmodium falciparum to amodiaquine (AQ), probably due to differences in methodology and interpretation. In vitro susceptibility data of Colombian P. falciparum strains to AQ and N-desethylamodiaquine is used to illustrate the need to standardized methodologies and compare inhibitory concentrations, instead of resistant/susceptible phenotypes, when studying the mechanisms of resistance to AQ and monitoring drug susceptibility trends in the field.
authors.affiliation: International Center for Medical Research and Training, Cideim, Cali, Colombia. difereg@cideim.org.cco
authors.forename: Diego F
authors.initials: DF
authors.lastname: Echeverry
authors.forename: Claribel
authors.initials: C
authors.lastname: Murillo
authors.forename: Restrepo P
authors.initials: RP
authors.lastname: Piedad
authors.forename: Lyda
authors.initials: L
authors.lastname: Osorio
mesh_terms: D000634:Aminoquinolines / Q000494:pharmacology*; D000655:Amodiaquine / Q000494:pharmacology*; D000818:Animals; D000962:Antimalarials / Q000494:pharmacology*; D021261:Parasitic Sensitivity Tests / Q000379:methods; D010963:Plasmodium falciparum / Q000187:drug effects*
chemical_list: D000634:Aminoquinolines; D000962:Antimalarials; D000655:Amodiaquine; C001920:4-aminoquinoline