Changes of Cholinesterase Activities in the Rat Blood and Brain After Sarin Intoxication Pretreated with Butyrylcholinesterase |
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| Authors: | Jiri Bajgar Lucie Bartosova Kamil Kuca Daniel Jun Josef Fusek |
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| Affiliation: | 1. Department of Toxicology, Faculty of Military Health Sciences, University of Defence, Hradec Kralove, Czech Republic;2. Center of Advanced Studies, Faculty of Military Health Sciences, University of Defence, Hradec Kralove, Czech Republic |
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| Abstract: | After sarin inhalation exposure of rats pretreated with equine serum butyrylcholinesterase (EqBuChE), cholinesterase activities of the whole blood, acetylcholinesterase (AChE) in erythrocytes, pontomedullar area, frontal cortex, and striatum of the brain, and plasma butyrylcholinesterase (BuChE) were determined. Using different doses of EqBuChE as a pretreatment (intraperitoneal injection), dose-dependent increases in plasma BuChE activity and no changes in the erythrocyte and brain AChE activities were demonstrated. Decreases in plasma BuChE activity and red blood cells (RBC) and brain AChE activities were observed in control rats after sarin inhalation exposure without EqBuChE pretreatment. In rats pretreated with EqBuChE, this inhibition was lower compared with control animals not only in the blood but also in the brain structures studied. These results demonstrate protective effects of EqBuChE pretreatment in rats intoxicated with sublethal concentrations of sarin by inhalation. |
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| Keywords: | Acetylcholinesterase Brain parts Cholinesterases Erythrocytes Plasma Sarin Whole blood |
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