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Neurotoxic effects have also been linked to poisoning with OP pesticides causing four neurotoxic effects in humans: cholinergic syndrome, intermediate syndrome, organophosphate-induced delayed polyneuropathy (OPIDP), and chronic organophosphate-induced neuropsychiatric disorder (COPIND). These syndromes result after acute and chronic exposure ...
Contamination with – or excessive exposure to – certain chemicals including: nerve agents, (e.g., sarin, VX, Novichok agents). organophosphorus insecticides (e.g., parathion, aldicarb) nicotine poisoning can be thought of as a subset of cholinergic crisis, as it also involves excessive parasympathetic stimulation. [5]
Pralidoxime (2-pyridine aldoxime methyl chloride) or 2-PAM, usually as the chloride or iodide salts, belongs to a family of compounds called oximes that bind to organophosphate-inactivated acetylcholinesterase. [1] It is used to treat organophosphate poisoning [2] in conjunction with atropine and either diazepam or midazolam. It is a white solid.
Organophosphate insecticides are acetylcholinesterase inhibitors, which disrupt the transmission of nerve signals in exposed organisms, with fatal results. The risk of human death through organophosphate poisoning [32] was obvious from the start and led to efforts to lower toxicity against mammals while not reducing efficacy against insects ...
In the treatment of organophosphate toxicity, cholinesterase reactivators such as Pralidoxime reactivate inhibited AChE at peripheral nicotinic receptors.Since AChE mediates effects on both nicotinic and muscarinic receptors, cholinesterase reactivators are co-administered with muscarinic antagonists, primarily atropine.
The toxicity of sarin in humans is largely based on calculations from studies with animals. The lethal concentration of sarin in air is approximately 28–35 mg per cubic meter per minute for a two-minute exposure time by a healthy adult breathing normally (exchanging 15 liters of air per minute, lower 28 mg/m 3 value is for general population ...
An antidote is a substance that can counteract a form of poisoning. [1] The term ultimately derives from the Greek term φάρμακον ἀντίδοτον (pharmakon antidoton) , "(medicine) given as a remedy".
Atropine is not an actual antidote for organophosphate poisoning. However, by blocking the action of acetylcholine at muscarinic receptors, atropine also serves as a treatment for poisoning by organophosphate insecticides and nerve agents, such as tabun (GA), sarin (GB), soman (GD), and VX.