Muscarinic acetylcholine receptor M1

Overview of the Muscarinic acetylcholine receptor M1

The Muscarinic acetylcholine receptor M1 (CHRM1) is a G protein-coupled receptor that is encoded by the CHRM1 gene in humans. It is one of the five subtypes of muscarinic receptors, which are part of the acetylcholine receptor family. These receptors play a crucial role in the parasympathetic nervous system, mediating various physiological functions.

Function

The M1 receptor is primarily found in the central nervous system, particularly in the cerebral cortex, hippocampus, and striatum. It is involved in modulating cognitive functions such as learning and memory. Activation of the M1 receptor leads to the stimulation of phospholipase C, resulting in the production of inositol trisphosphate and diacylglycerol, which in turn increase intracellular calcium levels.

Clinical Significance

The M1 receptor has been implicated in several neurological disorders, including Alzheimer's disease and schizophrenia. It is a target for drug development aimed at improving cognitive deficits associated with these conditions. Agonists of the M1 receptor are being investigated for their potential therapeutic effects in enhancing cognitive function and neuroprotection.

Pharmacology

M1 receptor agonists and antagonists are used in research to study the receptor's role in various physiological and pathological processes. Pirenzepine is a selective M1 antagonist that has been used to differentiate between M1 and other muscarinic receptor subtypes. The development of selective M1 receptor modulators continues to be an area of active research.

See also

• Muscarinic acetylcholine receptor
• G protein-coupled receptor
• Acetylcholine
• Neurotransmitter

External links

• Template:MeSH
• Muscarinic acetylcholine receptor M1 on WikiMD