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Organophosphate poisoning is poisoning due to organophosphates (OPs). [4] Organophosphates are used as insecticides , medications, and nerve agents . [ 4 ] Symptoms include increased saliva and tear production, diarrhea , vomiting, small pupils , sweating, muscle tremors, and confusion. [ 2 ]
Organophosphate-induced delayed neuropathy (OPIDN), also called organophosphate-induced delayed polyneuropathy (OPIDP), is a neuropathy caused by killing of neurons in the central nervous system, especially in the spinal cord, as a result of acute or chronic organophosphate poisoning.
The use of organophosphates has decreased considerably since that time, having been replaced by pyrethroids and neonicotinoids, which are effective a much lower levels. [26] Reported cases of organophosphate poisoning in the US have reduced during this period. [48] [49] Regulation in the global south can be less extensive. [50] [51]
Pralidoxime is typically used in cases of organophosphate poisoning. Organophosphates such as sarin bind to the hydroxy component (the esteric site) of the active site of the acetylcholinesterase enzyme, thereby blocking its activity. Pralidoxime binds to the other half (the unblocked, anionic site) of the active site and then displaces the ...
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 ...
Cholinesterase reactivators are drugs that reverse the inhibition of cholinesterase by organophosphates or sulfonates. [1] They are used as antidote for treating organophosphate insecticide and nerve agent poisoning. [2] Organophosphates are used industrially in agricultural pesticides, and globally as agents of chemical warfare.
The detailed mechanism of action of dichlofenthion, an organophosphate insecticide, involves the inhibition of the enzyme acetylcholinesterase (AChE), [10] which plays a critical role in nerve signal transmission. Acetylcholinesterase is responsible for breaking down acetylcholine (ACh), a neurotransmitter, in the synaptic cleft, which is the ...
Organophosphate poisoning is not common in the developed world. Most cases of terbufos poisoning occur in the developing world, where protection against pesticides is scarce, but compounds such as terbufos are widespread, uncontrolled by a government and readily available for farmers.