Trial reportJournal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism2019
Calcium channel blockade with nimodipine reverses MRI evidence of cerebral oedema following acute hypoxia.
Trial report in Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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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.
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Who cites it
11 citing papers in PubMed, 20 citations in OpenAlex.
- Salidroside Attenuates High-Altitude Hypoxic Myocardial Injury Through Modulation of Oxidative Stress and AKT/GSK-3β Signaling Pathways.Applied biochemistry and biotechnology · 2026Article
- Examining the therapeutic potential and side effects of calcium channel blockers in mortality and morbidity of patients with stroke: A systematic review of pre-clinical and clinical studies.IBRO neuroscience reports · 2025Review
- Electromechanical Regulation Underlying Protein Nanoparticle-Induced Osmotic Pressure in Neurotoxic Edema.International journal of nanomedicine · 2025Article
- Magnesium as an adjunct to nimodipine in subarachnoid hemorrhage: a meta-analysis.Journal of Yeungnam medical science · 2025Article
- Sirtuins as Potential Targets for Neuroprotection: Mechanisms of Early Brain Injury Induced by Subarachnoid Hemorrhage.Translational stroke research · 2024Review
- A case of ischemic-hypoxic encephalopathy due to oral succinylcholine ingestion.Chronic diseases and translational medicine · 2022Article
- The Use of Wearable Pulse Oximeters in the Prompt Detection of Hypoxemia and During Movement: Diagnostic Accuracy Study.Journal of medical Internet research · 2022Article
- Melatonin as a Potential Neuroprotectant: Mechanisms in Subarachnoid Hemorrhage-Induced Early Brain Injury.Frontiers in aging neuroscience · 2022Review
- Observational
- Article
- Vasogenic cerebral edema associated with the disability in activities of daily living in patients with chronic obstructive pulmonary disease.Brain and behavior · 2018Article
Corrections and comments
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Authors and funding
11 authors at 4 institutions in 1 country.
Funding
Abstract
Acute cerebral hypoxia causes rapid calcium shifts leading to neuronal damage and death. Calcium channel antagonists improve outcomes in some clinical conditions, but mechanisms remain unclear. In 18 healthy participants we: (i) quantified with multiparametric MRI the effect of hypoxia on the thalamus, a region particularly sensitive to hypoxia, and on the whole brain in general; (ii) investigated how calcium channel antagonism with the drug nimodipine affects the brain response to hypoxia. Hypoxia resulted in a significant decrease in apparent diffusion coefficient (ADC), a measure particularly sensitive to cell swelling, in a widespread network of regions across the brain, and the thalamus in particular. In hypoxia, nimodipine significantly increased ADC in the same brain regions, normalizing ADC towards normoxia baseline. There was positive correlation between blood nimodipine levels and ADC change. In the thalamus, there was a significant decrease in the amplitude of low frequency fluctuations (ALFF) in resting state functional MRI and an apparent increase of grey matter volume in hypoxia, with the ALFF partially normalized towards normoxia baseline with nimodipine. This study provides further evidence that the brain response to acute hypoxia is mediated by calcium, and importantly that manipulation of intracellular calcium flux following hypoxia may reduce cerebral cytotoxic oedema.
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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.