ArsenicalsArsenicArsenic PoisoningCacodylic AcidArsenitesMelarsoprolIon PumpsArsenite Transporting ATPasesAntimonyArsenatesRoxarsoneTrypanocidal AgentsDimercaprolDiminazenePentamidineOxidesAquaglyceroporinsBowen's DiseaseSodium CompoundsWater Pollutants, ChemicalDrinking WaterNucleoside Transport ProteinsMethylationR FactorsMethyltransferasesTrypanosoma brucei bruceiUrotheliumGlutathioneCrithidia fasciculataTrypanosomaSkin DiseasesOrganometallic CompoundsSpectrophotometry, AtomicTrypanosomiasis, AfricanSulfidesMedicine, TraditionalSulfhydryl CompoundsOperonMultienzyme ComplexesUrinary BladderDrug ResistanceCysteineAdenosine TriphosphatasesBiotransformationCarcinogensRats, Inbred F344Escherichia coliEnvironmental ExposureKineticsDrug Resistance, MicrobialDisulfidesDose-Response Relationship, Drug