ArticleBiomedicine & pharmacotherapy = Biomedecine & pharmacotherapie2022
The ventilatory depressant actions but not the antinociceptive effects of morphine are blunted in rats receiving intravenous infusion of L-cysteine ethyl ester.
Article in Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
11 citing papers in PubMed, 13 citations in OpenAlex.
- L-Cysteine Ethyl Ester May Overcome Morphine-Induced Respiratory Depression by Activating Muscarinic Receptors.Pharmaceuticals (Basel, Switzerland) · 2026Article
- The cystathionine-γ-lyase inhibitor DL-propargylglycine augments the ability of L-cysteine ethyl ester to overcome the adverse effects of morphine on breathing.American journal of physiology. Lung cellular and molecular physiology · 2025Article
- Nalfurafine reverses fentanyl-induced muscle rigidity and respiratory depression without affecting sedation in rats: decoupling respiration from sedation.Journal of applied physiology (Bethesda, Md. : 1985) · 2025Article
- L-cysteine ethylester reverses the adverse effects of morphine on breathing and arterial blood-gas chemistry while minimally affecting antinociception in unanesthetized rats.Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie · 2024Article
- Fentanyl activates opposing opioid and non-opioid receptor systems that control breathing.Frontiers in pharmacology · 2024Article
- Tropine exacerbates the ventilatory depressant actions of fentanyl in freely-moving rats.Frontiers in pharmacology · 2024Article
- The cell-permeant antioxidant D-thiol ester D-cysteine ethyl ester overcomes physical dependence to morphine in male Sprague Dawley rats.Frontiers in pharmacology · 2024Article
- The epigenetic signatures of opioid addiction and physical dependence are prevented by D-cysteine ethyl ester and betaine.Frontiers in pharmacology · 2024Article
- Heroin- and Fentanyl-Induced Respiratory Depression in a Rat Plethysmography Model: Potency, Tolerance, and Sex Differences.The Journal of pharmacology and experimental therapeutics · 2023Article
- L-cysteine ethyl ester prevents and reverses acquired physical dependence on morphine in male Sprague Dawley rats.Frontiers in pharmacology · 2023Article
- Lipophilic analogues of D-cysteine prevent and reverse physical dependence to fentanyl in male rats.Frontiers in pharmacology · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors at 3 institutions in 1 country.
Funding
Abstract
This study demonstrates that intravenous infusion of the cell-penetrant thiol ester, L-cysteine ethyl ester (L-CYSee), to adult male Sprague-Dawley rats elicited (a) minor alterations in frequency of breathing, expiratory time, tidal volume, minute ventilation, or expiratory drive but pronounced changes in inspiratory time, end-inspiratory and expiratory pauses, peak inspiratory and expiratory flows, EF
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Identifiers
What Socratic holds
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 Socratic graph.