☆ 4.2 Article

Acute effects of chlorpyryphos-ethyl and secondary treated effluents on acetylcholinesterase and butyrylcholinesterase activities in Carcinus maenas

JOURNAL OF ENVIRONMENTAL SCIENCES (2009)

期刊

JOURNAL OF ENVIRONMENTAL SCIENCES

卷 21, 期 10, 页码 1467-1472

出版社

SCIENCE PRESS

DOI: 10.1016/S1001-0742(08)62441-9

关键词

acetylcholinesterase; butyrylcholinesterase; organophosphorous; Dursban (R); secondary treated industrial/urban effluent; Carcinus maenas

类别

Environmental Sciences

资金

Ministry of Scientific Research and Technology, Tunisia [UR 04AGR05]

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Protocol

Reagent

摘要

The acute effects of commercial formulation of chlorpyrifos-ethyl (Dursban) and the secondary treated industrial/urban effluent (STIUE) exposure on acetyleholinesterase (ACNE) and butyrylcholinesterase (BuChE) activities in hepatopancreas and gills of Mediterranean crab Carcinus maenas were investigated. After 2 d of exposure to chlorpyriphos-ethyl, the ACNE activity was inhibited in both organs at concentrations of 3.12 and 7.82 mu g/L, whereas the BuChE was inhibited only at higher concentration 7.82 mu g/L of commercial preparation Dursban (R). The exposure of crabs to Dursban (R) (3.12 mu g/L) showed a significant decrement of ACK activity at 24 and 48 h, whereas the BuChE was inhibited only after 24 h and no inhibition for both enzymes was observed after 72 h. Moreover, a significant repression of ACNE activity was observed in both organs of C. maenas exposed to 5% of STIUE. Our experiments indicated that the measurement of ACNE activity in gills and hepatopancreas of C. maenas would be useful biomarker of organophosphorous (OP) and of neurotoxic effects of STIUE in Tunisia.

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