ArticleProceedings of the National Academy of Sciences of the United States of America2004
Essential role for smooth muscle BK channels in alcohol-induced cerebrovascular constriction.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 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
60 citing papers in PubMed, 82 citations in OpenAlex.
- Site and mechanism of BK channel inhibition and cerebral artery constriction by pregnenolone.Pharmacological research · 2026Article
- Alcohol and Hypertension-A Fresh Look on the Mechanistic Aspects of a Fatal Epidemiologic Relationship.Biomolecules · 2026Review
- Potassium channels in vascular smooth muscle cells.Physiological reviews · 2026Review
- Cholesterol and docosahexaenoic acid likely protect against alcohol-induced constriction of cerebral arteries via a common pathway.Advances in drug and alcohol research · 2026Article
- Docosahexaenoic acid protects against alcohol-induced constriction of cerebral arteries and inhibition of vascular smooth muscle BK channels.Alcohol, clinical & experimental research · 2025Article
- The Slo1 Y450F Substitution Modifies Basal Function and Cholesterol Response of Middle Cerebral Artery Smooth Muscle BK Channels in a Sexually Dimorphic Manner.International journal of molecular sciences · 2025Article
- Toluene is a cerebral artery constrictor acting via BK channels.Neuropharmacology · 2025Article
- Paternal preconception alcohol consumption increased Angiotensin II-mediated vasoconstriction in male offspring cerebral arteries via oxidative stress-AT1R pathway.Addiction biology · 2024Article
- Cerebrovascular Effects of Alcohol Combined with Tetrahydrocannabinol.Cannabis and cannabinoid research · 2024Article
- Commonly used anesthetics modify alcohol and (-)-trans-delta9-tetrahydrocannabinol in vivo effects on rat cerebral arterioles.BMC anesthesiology · 2023Article
- Dual-color miniscope imaging of microvessels and neuronal activity in the hippocampus CA1 region of freely moving mice following alcohol administration.American journal of physiology. Regulatory, integrative and comparative physiology · 2023Article
- Progesterone activation of βNature communications · 2023Article
- Differential Functional Contribution of BK Channel Subunits to Aldosterone-Induced Channel Activation in Vascular Smooth Muscle and Eventual Cerebral Artery Dilation.International journal of molecular sciences · 2023Article
- Interspecies and regional variability of alcohol action on large cerebral arteries: regulation by KCNMB1 proteins.American journal of physiology. Regulatory, integrative and comparative physiology · 2023Article
- Alcohol and pregnenolone interaction on cerebral arteries through targeting of vascular smooth muscleAdvances in drug and alcohol research · 2023Article
- Alcohol Use Disorders and Their Harmful Effects on the Contractility of Skeletal, Cardiac and Smooth Muscles.Advances in drug and alcohol research · 2021Article
- BK channel-forming slo1 proteins mediate the brain artery constriction evoked by the neurosteroid pregnenolone.Neuropharmacology · 2021Article
- Cholesterol antagonism of alcohol inhibition of smooth muscle BK channel requires cell integrity and involves a protein kinase C-dependent mechanism(s).Biochimica et biophysica acta. Molecular and cell biology of lipids · 2021Article
- Celastrol Dilates and Counteracts Ethanol-Induced Constriction of Cerebral Arteries.The Journal of pharmacology and experimental therapeutics · 2020Article
- Temporal Requirement for the Protective Effect of Dietary Cholesterol against Alcohol-Induced Vasoconstriction.Journal of drug and alcohol research · 2020Article
Corrections and comments
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
Abstract
Binge drinking is associated with increased risk for cerebrovascular spasm and stroke. Acute exposure to ethanol at concentrations obtained during binge drinking constricts cerebral arteries in several species, including humans, but the mechanisms underlying this action are largely unknown. In a rodent model, we used fluorescence microscopy, patch-clamp electrophysiology, and pharmacological studies in intact cerebral arteries to pinpoint the molecular effectors of ethanol cerebrovascular constriction. Clinically relevant concentrations of ethanol elevated wall intracellular Ca(2+) concentration and caused a reversible constriction of cerebral arteries (EC(50) = 27 mM; E(max) = 100 mM) that depended on voltage-gated Ca(2+) entry into myocytes. However, ethanol did not directly increase voltage-dependent Ca(2+) currents in isolated myocytes. Constriction occurred because of an ethanol reduction in the frequency (-53%) and amplitude (-32%) of transient Ca(2+)-activated K(+) (BK) currents. Ethanol inhibition of BK transients was caused by a reduction in Ca(2+) spark frequency (-49%), a subsarcolemmal Ca(2+) signal that evokes the BK transients, and a direct inhibition of BK channel steady-state activity (-44%). In contrast, ethanol failed to modify Ca(2+) waves, a major vasoconstrictor mechanism. Selective block of BK channels largely prevented ethanol constriction in pressurized arteries. This study pinpoints the Ca(2+) spark/BK channel negative-feedback mechanism as the primary effector of ethanol vasoconstriction.
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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.