RESUMO
Objective To study the morphological changes of diaphragm of rats with omethoate poisoning and the protection of penehyclidine hydrochloride.Methods The experimental model of Wistar rats was made by eliac injection ofomethoate,96 rats was divided randomly into four groups in average:the hrinematched control group (Group NO);the omethoate intoxication matched control group (Group PO);atropine and pralidoxime chloride cure group (Group AC); penehyclidine hydrochlofide and pralidoximc chloride cure group (Group PC).The whole blood cholinesterase (ChE) and creatinekinase (CK) activtitise were measured 2 h after poisoning.To observe the morphological changes of diaphragmat different time from 1 to 7 days.Results All the poisoned rats showed that the diaphragmatic histologic damage of the penehyclidine hydrochloride and pralidoxime chloride cure group was slighter than that of atropine cure group.Conclusion A possible reasons of the respiratory muscle paralysis conduced by AOPP was the putrescence of diaphragm muscle fiber, and penehyclidine hydrochloride could definitely protect the diaphragm of rats with omethoate poisoning,and we could deduce that it prevented from intermediate myasthenia syndrome.
