Cholinergic neuron (modulation of drinking behavior)

The phrase "Modulates drinking behavior through monoaminergic and cholinergic neurons" does not refer to a single canonical molecular target or receptor. Instead, it describes a **physiological process** involving multiple neuronal types—specifically, **cholinergic neurons** and **monoaminergic neurons**—that together regulate water intake and related behaviors. Cholinergic neurons in the basal forebrain and striatum play key roles in modulating cognitive flexibility, learning, arousal states, and reward-related behaviors. These neurons release acetylcholine as their primary neurotransmitter. Experimental evidence shows that stimulating central cholinergic systems can induce water-drinking behavior in animal models; this effect is also influenced by interactions with monoaminergic systems such as dopaminergic pathways[5]. Chronic alcohol exposure disrupts the function of these cholinergic circuits—altering firing patterns of striatal cholinergic interneurons (CINs), reducing the number or function of basal forebrain cholinergic neurons (BFCNs), impairing behavioral flexibility, and contributing to persistent cognitive deficits seen after adolescent binge drinking or chronic alcohol use disorder[1][2][3][4]. Pharmacologically relevant agents include carbachol—a non-selective acetylcholine receptor agonist that can induce water-drinking when administered centrally—and galantamine—a cholinesterase inhibitor shown to rescue loss of BFCN markers after ethanol exposure in preclinical models[5][4]. The muscarinic M4 receptor is one specific molecular target implicated in mediating some effects on synaptic transmission within these circuits during alcohol exposure or withdrawal states[1]. Because this entry refers to a broad physiological mechanism rather than a discrete molecule/receptor/protein/gene typically considered a therapeutic target for drug development purposes—and lacks specificity regarding which exact molecule is meant—it should be flagged as incorrect for structured database purposes. > Loss of basal forebrain cholinergic neurons following adolescent binge drinking causes lasting changes in brain structure/function associated with impaired reversal learning; pharmacological interventions targeting acetylcholine signaling may partially reverse these effects.[2][3][4] > Carbachol-induced water-drinking demonstrates the role of central nervous system cholinergics in thirst regulation; both monoaminergics and other neuromodulators interact with this system.[5]

Other names

Cholinergic interneuronBasal forebrain cholinergic neuronCINBFCN

Acetylcholine receptor agonism/antagonism (e.g., muscarinic M4 receptor modulation)