Related Experiment Video
Updated: Jun 17, 2026

A Computerized Test Battery to Study Pharmacodynamic Effects on the Central Nervous System of Cholinergic Drugs in Early Phase Drug Development
Published on: February 11, 2019
The cholinergic system, sigma-1 receptors and cognition
Aren van Waarde1, Nisha K Ramakrishnan, Anna A Rybczynska
1Department of Nuclear Medicine and Molecular Imaging, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands. a.van.waarde@ngmb.umcg.nl
Sigma-1 receptor agonists show promise for treating memory deficits and cognitive disorders by modulating the cholinergic system. These compounds demonstrate significant anti-amnesic and neuroprotective effects in various animal models.
Area of Science:
- Neuroscience
- Pharmacology
Background:
- Sigma-1 receptors are unique molecular chaperones involved in intracellular calcium signaling and neurotransmitter systems, particularly cholinergic and glutamatergic pathways.
- Several central nervous system (CNS) drugs interact with sigma-1 receptors, influencing cognitive functions through their primary targets and sigma-1 receptor activation.
Purpose of the Study:
- To review the relationship between the cholinergic system and sigma-1 receptors.
- To discuss the therapeutic potential of sigma-1 receptor agonists for memory deficits and cognitive disorders.
Main Methods:
- Review of existing literature on sigma-1 receptors and their interaction with CNS drugs.
- Analysis of data from animal models demonstrating the effects of sigma-1 agonists on cognitive dysfunction.
Main Results:
- Sigma-1 agonists exhibit potent anti-amnesic and neuroprotective effects across diverse models of cognitive impairment.
- These effects were observed in models involving pharmacologic blockade, cholinergic neuron damage, beta-amyloid administration, aging, and neurotoxicity.
Conclusions:
- Sigma-1 receptor agonists represent a promising therapeutic strategy for cognitive disorders.
- Further research into sigma-1 receptor modulation could lead to novel treatments for memory deficits.
More Related Videos
14:47Combined Peripheral Nerve Stimulation and Controllable Pulse Parameter Transcranial Magnetic Stimulation to Probe Sensorimotor Control and Learning
Published on: April 21, 2023
09:06Localization of Plasma Membrane and Intracellular Neuronal Nicotinic Acetylcholine Receptors Using Quantitative Imaging in Mammalian Cells
Published on: December 19, 2025
Related Concept Videos
Cholinergic Receptors: Muscarinic
The subtypes M1, M3, and M5 couple with the Gq subunit and activate the phospholipase C (PLC) activity, mobilizing intracellular Ca2+. Activation...
Cognitive Enhancers: Cholinesterase Inhibitors and NMDA Receptor Antagonists
Cholinergic Receptors: Nicotinic
There are two types of nicotinic receptors: neuromuscular (NM/NM/N1) and neuronal (NN/NN/N2). The two families differ based on their location and selectivity to...
Direct-Acting Cholinergic Agonists: Pharmacological Actions
Parasympathetic Signaling
The effects of...
Indirect-Acting Cholinergic Agonists: Pharmacological Actions
At the neuromuscular junction, these agents work by inhibiting the breakdown of acetylcholine, allowing it to remain bound to the receptor and bind to nearby receptors. This process leads to repetitive firing of the endplate, causing muscle...