title: Anticholinesterasic activity of endosulfan in Wistar rats.
abstract: The in vivo and in vitro effects of the pesticide endosulfan on the cholinesterase (ChE) activity were investigated in rats. ChE activity decreased in dams and in male pups within 65 days corresponding to 35% and 32% of inhibition respectively in the higher endosulfan dose (1.5 mg/kg). In vitro, the enzyme activity was found to be inhibited in a concentration dependent manner. The results suggest that endosulfan is able to inhibit the ChE activity and to cross the placental barrier and/or to be eliminated through milk affecting the enzyme activity in male rat pups.
authors.affiliation: Department of Pharmacology, Federal University of Paraná, Curitiba, PR, Brazil. helassis@ufpr.br
authors.forename: Helena Cristina
authors.initials: HC
authors.lastname: Silva de Assis
authors.forename: Lilian
authors.initials: L
authors.lastname: Nicaretta
authors.forename: Maria Consuelo Andrade
authors.initials: MC
authors.lastname: Marques
authors.forename: Sandra
authors.initials: S
authors.lastname: Crestani
authors.forename: Kelly Cristina
authors.initials: KC
authors.lastname: Soares
authors.forename: Delia
authors.initials: D
authors.lastname: Olmedo
authors.forename: Paulo Roberto
authors.initials: PR
authors.lastname: Dalsenter
mesh_terms: D000818:Animals; D000831:Animals, Newborn; D002800:Cholinesterase Inhibitors / Q000633:toxicity*; D002802:Cholinesterases / Q000378:metabolism*; D004305:Dose-Response Relationship, Drug; D004726:Endosulfan / Q000633:toxicity*; D005260:Female; D007306:Insecticides / Q000633:toxicity*; D008297:Male; D018811:Maternal Exposure; D051381:Rats; D017208:Rats, Wistar
chemical_list: D002800:Cholinesterase Inhibitors; D007306:Insecticides; D002802:Cholinesterases; D004726:Endosulfan