[Effects of explosions on cortical response threshold and enzyme activities in inner ear of guinea pigs]

Effects of explosions of different intensities on cortical response threshold (CRT) and activities of succinic dehydrogenase (SDH) and acetylcholinesterase (AchE) in the inner ear were studied on 37 guinea pigs. The results revealed various degrees of cochlear damages due to different doses of explosions, and also a negative correlation between hearing loss and the enzyme activities in both TTS and PTS. The significance of the results is discussed.