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Cholinergic information


The N,N,N-trimethylethanolammonium cation, with an undefined counteranion, X
Acetylcholine

Cholinergic agents are compounds which mimic the action of acetylcholine and/or butyrylcholine.[1] In general, the word "choline" describes the various quaternary ammonium salts containing the N,N,N-trimethylethanolammonium cation. Found in most animal tissues, choline is a primary component of the neurotransmitter acetylcholine and functions with inositol as a basic constituent of lecithin. Choline also prevents fat deposits in the liver and facilitates the movement of fats into cells.

The parasympathetic nervous system, which uses acetylcholine almost exclusively to send its messages, is said to be almost entirely cholinergic. Neuromuscular junctions, preganglionic neurons of the sympathetic nervous system, the basal forebrain, and brain stem complexes are also cholinergic, as are the receptor for the merocrine sweat glands.

In neuroscience and related fields, the term cholinergic is used in these related contexts:

  • A substance (or ligand) is cholinergic if it is capable of producing, altering, or releasing acetylcholine, or butyrylcholine ("indirect-acting"), or mimicking their behaviours at one or more of the body's acetylcholine receptor ("direct-acting") or butyrylcholine receptor types ("direct-acting"). Such mimics are called parasympathomimetic drugs or cholinomimetic drugs.
  • A receptor is cholinergic if it uses acetylcholine as its neurotransmitter.[2]
  • A synapse is cholinergic if it uses acetylcholine as its neurotransmitter.
  1. ^ Vardanyan, R.S.; Hruby, V.J. (2006). "Cholinomimetics". Synthesis of Essential Drugs. Elsevier. pp. 179–193. doi:10.1016/b978-044452166-8/50013-3. ISBN 978-0-444-52166-8. Cholinomimetics or cholinergic drugs are those drugs that cause effects similar to those resulting from introduction of acetylcholine, or simulation of ganglions of the parasympathetic nervous system. These drugs imitate action of endogenously released acetylcholine.
  2. ^ "Dorlands Medical Dictionary:cholinergic receptors".[permanent dead link]

and 27 Related for: Cholinergic information

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Cholinergic

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Cholinergic agents are compounds which mimic the action of acetylcholine and/or butyrylcholine. In general, the word "choline" describes the various quaternary...

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Cholinergic urticaria

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Cholinergic urticaria is a type of hives (urticaria) that is triggered by an increase in body temperature, such as during exercise, sweating, or exposure...

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Cholinergic neuron

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A cholinergic neuron is a nerve cell which mainly uses the neurotransmitter acetylcholine (ACh) to send its messages. Many neurological systems are cholinergic...

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Cholinergic crisis

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A cholinergic crisis is an over-stimulation at a neuromuscular junction due to an excess of acetylcholine (ACh), as a result of the inactivity of the...

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Anticholinergic

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Wider use is discouraged due to the significant side effects related to cholinergic excess including seizures, muscle weakness, bradycardia, bronchoconstriction...

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Ghrelin

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addition to its function in energy homeostasis, ghrelin also activates the cholinergic–dopaminergic reward link in inputs to the ventral tegmental area and...

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Acetylcholine

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the body that use or are affected by acetylcholine are referred to as cholinergic. Acetylcholine is the neurotransmitter used at the neuromuscular junction—in...

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Acetylcholine receptor

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responsive to muscarine. Nicotinic and muscarinic are two main kinds of "cholinergic" receptors. Molecular biology has shown that the nicotinic and muscarinic...

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Parasympathomimetic drug

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parasympathomimetic drug, sometimes called a cholinomimetic drug or cholinergic receptor stimulating agent, is a substance that stimulates the parasympathetic...

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Tensilon test

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myasthenia gravis. It is also used to distinguish a myasthenic crisis from a cholinergic crisis in individuals undergoing treatment for myasthenia gravis. The...

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Reticular formation

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diffuse thalamocortical projections, ascending cholinergic projections, descending non-cholinergic projections, and descending reticulospinal projections...

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Donepezil

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elements of the cholinergic system and it is generally accepted that the symptoms of Alzheimer's disease are related to this cholinergic deficit, particularly...

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Cholinergic blocking drug

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Cholinergic blocking drugs are a group of drugs that block the action of acetylcholine (ACh), a neurotransmitter, in synapses of the cholinergic nervous...

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Neuromodulation

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(norepinephrine) system, the dopamine system, the serotonin system, and the cholinergic system. Drugs targeting the neurotransmitter of such systems affect the...

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Muscarinic acetylcholine receptor

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generalized as either adrenergic fibers, releasing noradrenaline, or cholinergic fibers, both releasing acetylcholine and expressing acetylcholine receptors...

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Sweat allergy

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sweat. It can affect all ages. Sweating can trigger intense itching or cholinergic urticaria. The protein MGL_1304 secreted by mycobiota (fungi) present...

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Hives

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longer. This form of the skin disease is, however, rare.[citation needed] Cholinergic urticaria (CU) is one of the physical urticaria which is provoked during...

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Leukemia inhibitory factor

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Leukemia inhibitory factor, or LIF, is an interleukin 6 class cytokine that affects cell growth by inhibiting differentiation. When LIF levels drop, the...

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Ethylcholine mustard

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Ethylcholine mustard is a neurotoxic nitrogen mustard that destroys cholinergic neurons. It's the hydrolysis product of the HN1 vesicant. Under aqueous...

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Pontine tegmentum

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fibre tracts, the tegmental pontine reticular nucleus, the mesopontine cholinergic system comprising the pedunculopontine nucleus and the laterodorsal tegmental...

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Basal forebrain

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the major cholinergic output of the central nervous system (CNS) centred on the output of the nucleus basalis. The presence of non-cholinergic neurons projecting...

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Scopolamine

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(dilated pupils) Drowsiness Dizziness Somnolence Death Physostigmine, a cholinergic drug that readily crosses the blood–brain barrier, has been used as an...

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Nucleus basalis

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nucleus basalis in humans is a somewhat diffuse collection of large cholinergic neurons in the basal forebrain. The main body of the nucleus basalis...

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Postganglionic nerve fibers

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postganglionic fibers differ: In the parasympathetic division, neurons are cholinergic. That is to say acetylcholine is the primary neurotransmitter responsible...

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Nicotinic acetylcholine receptor

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pathways. In insects, the cholinergic system is limited to the central nervous system. The nicotinic receptors are considered cholinergic receptors, since they...

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Toxidrome

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benztropine, datura, diphenhydramine and scopolamine. The symptoms of a cholinergic toxidrome include bronchorrhea, confusion, defecation, diaphoresis, diarrhea...

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Nicotine

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cell proliferation, while high levels are cytotoxic. Nicotine increases cholinergic signaling and adrenergic signaling in colon cancer cells, thereby impeding...

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