title: [Effect of temephos on the acetylcholinesterase activity of the brain of Tilapia guineensis. 1: Experimental study at operative doses].
abstract: After having exposed during 10 minutes the Tilapia guineensis to a concentration of 0,05 mg/l of temephos (concentration of a larvicide used for the field test), the authors note a lowering of the acetylcholinesterastic activity of the brain to an order of 25%. The return to a normal activity is achieved within 20 to 25 days. A new exposure, happening one week after the first, provokes a further lowering before the return to a normal value. The authors question themselves on the consequences of these chemical attacks repeated on a weekly basis during antilarval treatments in the struggle against the onchocercose.
mesh_terms: D000110:Acetylcholinesterase / Q000378:metabolism*; D000818:Animals; D001921:Brain / Q000201:enzymology*; D002800:Cholinesterase Inhibitors; D005399:Fishes / Q000378:metabolism*; D007306:Insecticides / Q000494:pharmacology*; D007814:Larva; D000002:Temefos / Q000494:pharmacology*; D013997:Time Factors
chemical_list: D002800:Cholinesterase Inhibitors; D007306:Insecticides; D000110:Acetylcholinesterase; D000002:Temefos
vernacular_title: Action du téméphos sur l'activité aceétylcholinestérasique du cerveau de Tilapia Guineensis. 1ère partie: Etude expérimentale aux doses opérationnelles.