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Updated: May 30, 2026

An Alternative Approach to Study Primary Events in Neurodegeneration Using Ex Vivo Rat Brain Slices
Published on: April 11, 2018
Combined approach to demonstrate acetylcholinesterase activity changes in the rat brain following tabun intoxication
Jiri Bajgar1, Petr Hajek, Jiri Kassa
1Department of Toxicology, Faculty of Military Health Sciences, University of Defence, Hradec Kralove, Czech Republic. bajgar@pmfhk.cz
Abstract:
Reactivation effects of K203 and currently available oximes (obidoxime, HI-6) in combination with atropine on acetylcholinesterase activities in the brain parts of rats poisoned with tabun were studied. The activity was determined by quantitative histochemical and biochemical methods correlating between them very well. The tabun-induced changes in acetylcholinsterase activity as well as in reactivation potency of reactivators used were different in various parts of the brain. Pontomedullar area seems to be important for observed changes following tabun intoxication and its treatment. From the oximes studied, the reactivation effect of K203 was comparable with obidoxime; HI-6 was ineffective. Combination of bio- and histochemical methods allow fine differentiation among the action of different oximes following tabun poisoning.
