title: Nippostrongylus brasiliensis: infection decreases plasma butyrylcholinesterase activity in rats.
abstract: Plasma butyrylcholinesterase (BChE) hydrolyzes ester-containing compounds such as succinylcholine, as well as acting as a scavenger against neurotoxic organophosphates (OPs). We previously found that Nippostrongylus brasiliensis infection makes rats more susceptible to OP toxicity by decreasing serum paraoxonase-1 (PON1) activity. In the present study, we examined the effects of N.brasiliensis infection on acetylcholinesterase (AChE) activity in plasma, red blood cells (RBCs), brain and diaphragm, as well as serum PON1 activity, in rats at day 7 after infection. N.brasiliensis infection significantly decreased plasma BChE and PON1 activities without significantly altering AChE activity in RBCs, brain and diaphragm. These results provide further insight into the unusual deleterious effects of intestinal nematode infections on body homeostasis.
authors.affiliation: Laboratory of Veterinary Parasitic Diseases, University of Miyazaki, Gakuen-Kibanadai, Nishi 1-1, Miyazaki 889-2192, Japan.
authors.forename: Ayman Samir
authors.initials: AS
authors.lastname: Farid
authors.forename: Yoichiro
authors.initials: Y
authors.lastname: Horii
mesh_terms: D000110:Acetylcholinesterase / Q000032:analysis / Q000097:blood; D000818:Animals; D043303:Aryldialkylphosphatase / Q000097:blood; D001921:Brain / Q000201:enzymology; D002091:Butyrylcholinesterase / Q000097:blood*; D002265:Carboxylic Ester Hydrolases / Q000378:metabolism; D003964:Diaphragm / Q000201:enzymology; D004912:Erythrocytes / Q000201:enzymology; D005243:Feces / Q000469:parasitology; D008297:Male; D009559:Nippostrongylus / Q000502:physiology*; D010270:Parasite Egg Count; D011897:Random Allocation; D051381:Rats; D017208:Rats, Wistar; D017206:Strongylida Infections / Q000097:blood / Q000201:enzymology*
chemical_list: D002265:Carboxylic Ester Hydrolases; C019734:arylesterase; D000110:Acetylcholinesterase; D002091:Butyrylcholinesterase; D043303:Aryldialkylphosphatase