Chemico-biological interactions

Physiopathology of multiple organ dysfunctions in severely monocrotophos-poisoned rabbits.

PMID 28864276


Acute organophosphorus pesticides poisoning has a serious threat on people's health. This study aimed to investigate the pathogenesis and molecular mechanism of multiple organ dysfunction syndrome (MODS) in severely monocrotophos-poisoned rabbits. Chinchilla rabbits were used to build the monocrotophos-poisoned animal model via subcutaneous abdominal injection. Acetylcholinesterase activity was determined using the dithiobisnitrobenzoic acid enzyme kinetics method, and the free organophosphorus (FOP) toxic substances content was analyzed using the enzyme inhibition method. The contents of tumor necrosis factor (TNF-α), interleukin 1-β (IL-β) and thromboxane B Twenty-four hours after exposure, in comparison to the plasma, blood cells and homogenates of various tissues, the bile had a significantly different FOP content (P < 0.05). In different phases, HE staining results confirmed that several degrees of pathological lesions (such as hemorrhage, edema, degeneration and necrosis) were detected in FOP poisoned rabbits. The TXB FOP stored in the gallbladder may play important role in enterohepatic circulation. In MODS rabbits, caused by OP poisoning, the TXB