7 rezultatima
Organophosphates (OP) are widely used chemicals in agriculture and industry. Some OPs produce a delayed type of neuropathy affecting human and animals following exposure. Subacute neurotoxic doses of some OPs can be potentiated by concomitant exposure to certain chemicals. Lasalocid is a polyether
Adult White Leghorn hens were acutely exposed to 3 dosages of the following organophosphorus compounds: mipafox, tri-ortho-tolyl phosphate (TOTP), phenyl saligenin phosphate, and diisopropylphosphorofluoridate (DFP). Neuropathy target esterase (NTE) activity was measured in brain and spinal cord 4
Effects of organophosphorus esters (OPs) inducing delayed neuropathy in the adult hen have traditionally been evaluated by assessment of morphology and function of nerve and muscle in the rear limbs of animals exposed. In this study, organophosphorus-induced delayed neuropathy (OPIDN), including
Cyclic phenyl saligenin phosphate (PSP) proved to be a potent delayed neurotoxin, eliciting clinical disease and lesions, and depressing neuropathy target esterase and plasma cholinesterase at much lower doses than the protoxicant tri-ortho-tolyl phosphate (TOTP). Using adult White Leghorn chickens,
Indices of organophosphorus (OP)-induced delayed neuropathy (OPIDN) in the hen model have traditionally been restricted to the early inhibition of neuropathy target esterase (NTE) and ataxia with associated pathological changes in hind limb peripheral nerve which occur more than 7 days after OP
Verapamil, a calcium channel blocker, was administered to adult white leghorn hens to determine if inhibition of calcium entry could alter delayed neuropathy induced by administration of phenyl saligenin phosphate (PSP). Verapamil was given im in doses of 7 mg/kg/day for 4 days beginning 24 hr
The present study examined the effects of a glucocorticoid and a mineralocorticoid on organophosphorus-induced delayed neuropathy (OPIDN) as previous investigations have indicated that an endogenous steroid with both properties could alter this syndrome in chickens. The glucocorticoid triamcinolone