Thiomuscimol
Thiomuscimol is a GABA receptor antagonist. It is a derivative of the naturally occurring neurotransmitter muscimol, but has been chemically modified to change its activity profile. Thiomuscimol is used in scientific research to study the function of the GABA system in the brain.
Chemistry[edit | edit source]
Thiomuscimol is a derivative of muscimol, which is a naturally occurring neurotransmitter found in the Amanita muscaria mushroom. The chemical structure of thiomuscimol is similar to that of muscimol, but it has a sulfur atom in place of the oxygen atom in the five-membered ring of muscimol. This modification changes the activity of the molecule, making it an antagonist of the GABA receptor rather than an agonist.
Pharmacology[edit | edit source]
Thiomuscimol acts as an antagonist at the GABA receptor, meaning it blocks the action of GABA at this receptor. This is in contrast to muscimol, which is an agonist at the GABA receptor and mimics the action of GABA. The GABA system is the main inhibitory neurotransmitter system in the brain, and so blocking this system with thiomuscimol can lead to increased neuronal activity.
Uses in research[edit | edit source]
Thiomuscimol is used in scientific research to study the function of the GABA system in the brain. By blocking the action of GABA at the GABA receptor, researchers can investigate the role of this system in various aspects of brain function, including neurotransmission, neuroplasticity, and the regulation of sleep and wakefulness.
See also[edit | edit source]
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Contributors: Prab R. Tumpati, MD
