ArticleJournal of molecular neuroscience : MN2015
Muscarinic M1 receptors regulate propofol modulation of GABAergic transmission in rat ventrolateral preoptic neurons.
Article in Journal of molecular neuroscience : MN, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
6 citing papers in PubMed, 11 citations in OpenAlex.
- Insomnia: the gut microbiome connection, prospects for probiotic and postbiotic therapies, and future directions.Journal of advanced research · 2026Review
- Neural Circuit Mechanisms of General Anaesthesia Induction: Current Advances and Future Directions.Current neuropharmacology · 2026Review
- Propofol rather than Isoflurane Accelerates the Interstitial Fluid Drainage in the Deep Rat Brain.International journal of medical sciences · 2021Article
- Propofol decreases the excitability of cholinergic neurons in mouse basal forebrain via GABAActa pharmacologica Sinica · 2019Article
- Sexually diergic hypothalamic-pituitary-adrenal axis responses to selective and non-selective muscarinic antagonists prior to cholinergic stimulation by physostigmine in rats.Brain research bulletin · 2018Article
- Association of Polymorphisms in Pharmacogenetic Candidate Genes with Propofol Susceptibility.Scientific reports · 2017Article
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
GABAergic neurons within the ventrolateral preoptic area (VLPO) play an important role in sleep-wakefulness regulation. Propofol, a widely used systemic anesthetic, has lately been reported to excite noradrenaline (NA)-inhibited type of VLPO neurons. Present study tested if acetylcholine system takes part in the propofol modulation of GABAergic spontaneous miniature inhibitory postsynaptic currents (mIPSCs) in mechanically dissociated rat VLPO neurons using a conventional whole-cell patch clamp technique. Propofol reversibly decreased mIPSC frequency without affecting the current amplitude, indicating that propofol acts presynaptically to decrease the probability of spontaneous GABA release. The propofol action on GABAergic mIPSC frequency was completely blocked by atropine, a nonselective muscarinic acetylcholine (mACh) receptor antagonist, and pirenzepine, a selective M1 receptor antagonist. These results suggest that propofol acts on M1 receptors on GABAergic nerve terminals projecting to VLPO neurons to inhibit spontaneous GABA release. The M1 receptor-mediated modulation of GABAergic transmission onto VLPO neurons may contribute to the regulation of loss of consciousness induced by propofol.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.