ArticleAlcoholism, clinical and experimental research2012
Ethanol alters opioid regulation of Ca(2+) influx through L-type Ca(2+) channels in PC12 cells.
Article in Alcoholism, clinical and experimental research, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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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
2 citing papers in PubMed, 7 citations in OpenAlex.
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
Abstract
backgroundStudies at the behavioral and synaptic level show that effects of ethanol on the central nervous system can involve the opioid signaling system. These interactions may alter the function of a common downstream target. In this study, we examined Ca(2+) channel function as a potential downstream target of interactions between ethanol and μ or κ opioid receptor signaling.
methodsThe studies were carried out in a model system, undifferentiated PC12 cells transfected with μ or κ opioid receptors. The PC12 cells express L-type Ca(2+) channels, which were activated by K(+) depolarization. Ca(2+) imaging was used to measure relative Ca(2+) flux during K(+) depolarization and the modulation of Ca(2+) flux by opioids and ethanol.
resultsEthanol, μ receptor activation, and κ receptor activation all reduced the amplitude of the Ca(2+) signal produced by K(+) depolarization. Pretreatment with ethanol or combined treatment with ethanol and μ or κ receptor agonists caused a reduction in the amplitude of the Ca(2+) signal that was comparable to or smaller than that observed for the individual drugs alone, indicating an interaction by the drugs at a downstream target (or targets) that limited the modulation of Ca(2+) flux through L-type Ca(2+) channels.
conclusionsThese studies provide evidence for a cellular mechanism that could play an important role in ethanol regulation of synaptic transmission and behavior through interactions with the opioid signaling.
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