ArticleFrontiers in molecular neuroscience2021
Exendin-4 Preserves Blood-Brain Barrier Integrity
Article in Frontiers in molecular neuroscience, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 14 citations in OpenAlex.
- The Pleiotropic Therapeutic Perspectives of GLP-1 and GIP Receptor Agonists in Spinal Cord Injury: A Narrative Review.Molecular neurobiology · 2026Review
- Exendin-4 protects brain endothelial cell damage against hyperammonemic condition.Biochemistry and biophysics reports · 2026Article
- The Role of Vitamin D in Neuropathic Pain: Biological Mechanisms and Clinical Relevance.International journal of molecular sciences · 2026Review
- The promise of GLP-1 receptor agonists for neurodegenerative diseases.The Journal of clinical investigation · 2026Review
- Exendin-4 as a multi-target therapy for Fetal Inflammatory Response Syndrome-induced brain injury.Frontiers in neurology · 2026Review
- GLP-1 Receptor Agonists: Beyond Diabetes-What the Neurosurgeon Needs to Know.Neurosurgery practice · 2024Review
- Systemic Inflammation after Aneurysmal Subarachnoid Hemorrhage.International journal of molecular sciences · 2023Review
- Immunological Profile of Vasospasm after Subarachnoid Hemorrhage.International journal of molecular sciences · 2023Review
- ASK1 inhibitor NQDI‑1 decreases oxidative stress and neuroapoptosis via the ASK1/p38 and JNK signaling pathway in early brain injury after subarachnoid hemorrhage in rats.Molecular medicine reports · 2023Article
- GLP-1 receptor nitration contributes to loss of brain pericyte function in a mouse model of diabetes.Diabetologia · 2022Article
- Obesity-related vascular dysfunction persists after weight loss and is associated with decreased vascular glucagon-like peptide receptor in female rats.American journal of physiology. Heart and circulatory physiology · 2022Article
- 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
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Authors and funding
8 authors at 1 institution in 2 countries.
Funding
Abstract
In this study, we investigated the role of Exendin-4 (Ex-4), a glucagon-like peptide 1 receptor (GLP-1R) agonist, in blood-brain barrier (BBB) disruption after subarachnoid hemorrhage (SAH) in rats. The endovascular perforation model of SAH was performed in Sprague-Dawley rats. Ex-4 was intraperitoneally injected 1 h after SAH induction. To elucidate the underlying molecular mechanism, small interfering ribonucleic acid (siRNA) for GLP-1R and Dorsomorphin, a specific inhibitor of adenosine monophosphate-activated protein kinase (AMPK), were intracerebroventricularly injected 48 h before induction of SAH correspondingly. Immunofluorescence results supported GLP-1R expressed on the endothelial cells of microvessels in the brain after SAH. Administration of Ex-4 significantly reduced brain water content and Evans blue extravasation in both hemispheres, which improved neurological scores at 24 h after SAH. In the mechanism study, Ex-4 treatment significantly increased the expression of GLP-1R, p-AMPK, IκB-α, Occludin, and Claudin-5, while the expression of p-nuclear factor-kappa B (NF-κB) p65, matrix metalloproteinase-9 (MMP-9), and albumin was significantly decreased. The effects of Ex-4 were reversed by the intervention of GLP-1R siRNA or Dorsomorphin, respectively. In conclusion, Ex-4 could preserve the BBB integrity through GLP-1R/AMPK-dependent NF-κB/MMP-9 inhibition after SAH, which should be further investigated as a potential therapeutic target in SAH.
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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.