ArticleThe Korean journal of physiology & pharmacology : official journal of the Korean Physiological Society and the Korean Society of Pharmacology2024
Dexmedetomidine alleviates blood-brain barrier disruption in rats after cerebral ischemia-reperfusion by suppressing JNK and p38 MAPK signaling.
Article in The Korean journal of physiology & pharmacology : official journal of the Korean Physiological Society and the Korean Society of Pharmacology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 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
14 citing papers in PubMed, 17 citations in OpenAlex.
- Comparison of remimazolam and dexmedetomidine on perioperative hemodynamics, postoperative mood, cognition, and delirium in elderly stroke patients undergoing mechanical thrombectomy: a single-center prospective cohort study.Naunyn-Schmiedeberg's archives of pharmacology · 2026Article
- Research Advances in the Pathogenesis of Sepsis-Associated Encephalopathy.International journal of molecular sciences · 2026Review
- Depletion of BIS in astrocytes aggravates reactive gliosis following photothrombotic brain injury.The Korean journal of physiology & pharmacology : official journal of the Korean Physiological Society and the Korean Society of Pharmacology · 2026Article
- Exercise-Conditioned Endothelial Progenitor Cell-Exosomes Preserve Cerebral Blood Flow and Alleviate Acute Ischemic Brain Injury in Hypertensive Mice.Life (Basel, Switzerland) · 2026Article
- Potential neuroprotective role of dexmedetomidine in preventing postoperative cerebral hyperperfusion syndrome: from mechanisms to clinical applications.American journal of translational research · 2026Review
- Protein Phosphatase 1 Regulatory Subunit 17 (PPP1R17) Regulates Cerebral Ischemia and Ischemia-Reperfusion Brain Injury by Suppressing YAP1-Mediated Mitophagy.Molecular neurobiology · 2025Article
- OAC1 improves mitofusin 2 expression to alleviate neuronal injury following experimental ischemic stroke.The Korean journal of physiology & pharmacology : official journal of the Korean Physiological Society and the Korean Society of Pharmacology · 2025Article
- Amorfrutin A ameliorates cerebral ischemia/reperfsion injuryThe Korean journal of physiology & pharmacology : official journal of the Korean Physiological Society and the Korean Society of Pharmacology · 2025Article
- Molecular and biological approach to ischemia/reperfusion in diabetes conditions.Molecular biology reports · 2025Review
- Regulation of Blood-Brain Barrier Permeability via JNK Signaling Pathway: Mechanisms and Potential Therapeutic Strategies for Ischemic Stroke, Alzheimer's Disease and Brain Tumors.Molecules (Basel, Switzerland) · 2025Review
- Shikonin attenuates blood-brain barrier injury and oxidative stress in rats with subarachnoid hemorrhage by activating Sirt1/Nrf2/HO-1 signaling.The Korean journal of physiology & pharmacology : official journal of the Korean Physiological Society and the Korean Society of Pharmacology · 2025Article
- Flavonoids in Brain Ischemia-Reperfusion and their Effect on Kinases as Signaling Pathway Activity.CNS & neurological disorders drug targets · 2025Article
- Caffeic acid phenethyl ester alleviates 1,2-dichloroethane-induced toxic cerebral edema: central and peripheral mechanisms.Frontiers in pharmacology · 2025Article
- Dexmedetomidine Improves BBB and Neuronal Damage in Subarachnoid Hemorrhage by Repressing S100A4-Mediated Astrocytic Reactivity.Dose-response : a publication of International Hormesis SocietyArticle
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Dexmedetomidine displays multiple mechanisms of neuroprotection in ameliorating ischemic brain injury. In this study, we explored the beneficial effects of dexmedetomidine on blood-brain barrier (BBB) integrity and neuroinflammation in cerebral ischemia/reperfusion injury. Sprague-Dawley rats were subjected to middle cerebral artery occlusion (MCAO) for 1.5 h and reperfusion for 24 h to establish a rat model of cerebral ischemia/reperfusion injury. Dexmedetomidine (9 g/kg) was administered to rats 30 min after MCAO through intravenous injection, and SB203580 (a p38 MAPK inhibitor, 200 g/kg) was injected intraperitoneally 30 min before MCAO. Brain damages were evaluated by 2,3,5-triphenyltetrazolium chloride staining, hematoxylin-eosin staining, Nissl staining, and brain water content assessment. BBB permeability was examined by Evans blue staining. Expression levels of claudin-5, zonula occludens-1, occludin, and matrix metalloproteinase-9 (MMP-9) as well as M1/M2 phenotypes-associated markers were assessed using immunofluorescence, RT-qPCR, Western blotting, and gelatin zymography. Enzyme-linked immunosorbent assay was used to examine inflammatory cytokine levels. We found that dexmedetomidine or SB203580 attenuated infarct volume, brain edema, BBB permeability, and neuroinflammation, and promoted M2 microglial polarization after cerebral ischemia/reperfusion injury. Increased MMP-9 activity by ischemia/reperfusion injury was inhibited by dexmedetomidine or SB203580. Dexmedetomidine inhibited the activation of the ERK, JNK, and p38 MAPK pathways. Moreover, activation of JNK or p38 MAPK reversed the protective effects of dexmedetomidine against ischemic brain injury. Overall, dexmedetomidine ameliorated brain injury by alleviating BBB permeability and promoting M2 polarization in experimental cerebral ischemia/reperfusion injury model by inhibiting the activation of JNK and p38 MAPK pathways.
Indexed as
Identifiers
What OpenQuestion 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 OpenQuestion graph.