ArticleAnesthesiology2018
Anesthetics Have Different Effects on the Electrocorticographic Spectra of Wild-type and Mitochondrial Mutant Mice.
Article in Anesthesiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 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
4 citing papers in PubMed, 10 citations in OpenAlex.
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- How Energy Supports Our Brain to Yield Consciousness: Insights From Neuroimaging Based on the Neuroenergetics Hypothesis.Frontiers in systems neuroscience · 2021Review
- Deficiency of Mitochondrial Functions and Peroxidation of Frontoparietal Cortex Enhance Isoflurane Sensitivity in Aging Mice.Frontiers in aging neuroscience · 2020Article
Corrections and comments
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Authors and funding
5 authors at 1 institution in 2 countries.
Funding
Abstract
what we already know about this topicWHAT THIS ARTICLE TELLS US THAT IS NEW:
background: Knockout of the mitochondrial protein Ndufs4 (Ndufs4[KO]) in mice causes hypersensitivity to volatile anesthetics but resistance to ketamine. The authors hypothesized that electrocorticographic changes underlying the responses of Ndufs4(KO) to volatile anesthetics and to ketamine would be similar in mutant and control mice.
methodsElectrocorticographic recordings at equipotent volatile anesthetic concentrations were compared between genotypes. In separate studies, control and cell type-specific Ndufs4(KO) mice were anesthetized with intraperitoneal ketamine to determine their ED50s.
resultsNdufs4 (KO) did not differ from controls in baseline electrocorticography (N = 5). Compared to baseline, controls exposed to isoflurane (EC50) lost power (expressed as mean baseline [µV/Hz]; mean isoflurane [µV/Hz]) in delta (2.45; 0.50), theta (1.41; 0.16), alpha (0.23; 0.05), beta (0.066; 0.016), and gamma (0.020; 0.005) frequency bands (N = 5). Compared to baseline, at their isoflurane EC50, Ndufs4(KO) maintained power in delta (1.08; 1.38), theta (0.36; 0.26), and alpha (0.09; 0.069) frequency bands but decreased in beta (0.041; 0.023) and gamma (0.020; 0.0068) frequency bands (N = 5). Similar results were seen for both genotypes in halothane. Vesicular glutamate transporter 2 (VGLUT2)-specific Ndufs4(KO) mice were markedly resistant to ketamine (ED50; 125 mg/kg) compared to control mice (ED50; 75 mg/kg; N = 6). At their respective ED95s for ketamine, mutant (N = 5) electrocorticography spectra showed a decrease in power in the beta (0.040; 0.020) and gamma (0.035; 0.015) frequency bands not seen in controls (N = 7).
conclusionsSignificant differences exist between the electrocorticographies of mutant and control mice at equipotent doses for volatile anesthetics and ketamine. The energetic state specifically of excitatory neurons determines the behavioral response to ketamine.
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