Role in Health and Disease
Nicotinic acetylcholine receptors can be blocked by curare, hexamethonium and toxins present in the venoms of snakes and shellfishes, like α-bungarotoxin. Drugs such as the neuromuscular blocking agents bind reversibly to the nicotinic receptors in the neuromuscular junction and are used routinely in anaesthesia.
Nicotinic receptors are the primary mediator of the effects of nicotine. In myasthenia gravis, the receptor at NMJ is targeted by antibodies, leading to muscle weakness. Muscarinic acetylcholine receptors can be blocked by the drugs atropine and scopolamine.
Read more about this topic: Acetylcholine Receptor
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