Agents Show LOVE ๐ AND HATE For Cholinergic Receptors Either Directly Or Indirectly ( CHOLINERGIC AGONIST)
Neurotransmitter: C hemical signals involved in communication b/w nerve cells, and b/w nerve cells & effector cells e.g Norepinephrine, Epinephrine, Acetylcholine, Dopamine, Serotonin, Histamine, GABA Hormone : Released from endocrine cells, into blood stream, travel throughout the body Local mediators: cells secrete the chemicals act locally in their immediate environment e.g Histamine, Prostaglandins Second Messenger: produced in response to neurotransmitter binding to receptors, translate the extracellular signal into response e.g cAMP, IP3, DAG Botulinum Toxin: blocked release of Ach from vesicles into Synaptic cleft Spider Venom causes release of Ach from vesicles AcetylCholineEsterases: degrade Ach in the synaptic cleft by hydrolyzing Ca2+ : Elevated level of calcium causes fusion of vesicles & release of Ach in synaptic cleft Muscarinic Receptors: G-protein coupled receptors---Bind with...