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Updated: Jun 6, 2026

Analysis of Cerebral Vasospasm in a Murine Model of Subarachnoid Hemorrhage with High Frequency Transcranial Duplex Ultrasound
Published on: June 3, 2021
Mitogen-activated protein kinases in cerebral vasospasm after subarachnoid hemorrhage: a review
Hidenori Suzuki1, Yu Hasegawa, Kenji Kanamaru
1Department of Physiology, Loma Linda University School of Medicine, Risley Hall, Room 223, Loma Linda, CA 92354, USA.
Background:
Mitogen-activated protein kinases (MAPKs) have been implicated in the pathogenesis of cerebral vasospasm after subarachnoid hemorrhage. The goal of this review is to bring together recent diverse data concerning the roles of MAPKs in cerebral vasospasm and to consider the future research.
Method:
A review of publications in the National Library of Medicine and National Institutes of Health database was conducted in August 2009 using specific keyword search terms pertaining to subarachnoid hemorrhage and MAPKs.
Findings:
There are nine in vitro studies and 17 in vivo studies published. Most of previous studies used MAPK inhibitors or their upstream molecule inhibitors, and showed that MAPK inhibitions prevented vasospasm. The MAPK cascade appears to interact with other signaling molecules, and MAPK may be an important final common pathway for the signaling transduction during cerebral vasospasm. However, the mechanism by which MAPK causes sustained vascular smooth muscle contraction remains unclear. In addition, the role of endogenous MAPK inhibitors, MAPK phosphatases, has not been investigated in cerebral vasospasm.
Conclusions:
The experimental data support the causative role of MAPK in cerebral vasospasm and warrant further research.
Insights
Mitogen-activated protein kinases (MAPKs) play a key role in cerebral vasospasm after subarachnoid hemorrhage. Inhibiting MAPKs effectively prevents vasospasm, highlighting their therapeutic potential.
Area of Science:
- Neuroscience
- Molecular Biology
- Pharmacology
Background:
- Mitogen-activated protein kinases (MAPKs) are implicated in cerebral vasospasm following subarachnoid hemorrhage.
- Understanding MAPK pathways is crucial for addressing post-hemorrhage complications.
Purpose of the Study:
- To review and synthesize current research on the role of MAPKs in cerebral vasospasm.
- To identify knowledge gaps and suggest future research directions.
Main Methods:
- Comprehensive literature search of PubMed and NIH databases (August 2009).
- Keywords: subarachnoid hemorrhage, mitogen-activated protein kinases (MAPKs).
- Inclusion of in vitro and in vivo studies.
Main Results:
- MAPK inhibition, using specific inhibitors, demonstrated a preventative effect on vasospasm in most studies.
- MAPK cascades appear to be a central signaling pathway in cerebral vasospasm.
- The precise mechanism of MAPK-induced sustained vascular smooth muscle contraction requires further elucidation.
- The role of endogenous MAPK inhibitors (MAPK phosphatases) in this context remains unexplored.
Conclusions:
- Experimental evidence strongly supports a causative role for MAPKs in cerebral vasospasm.
- Further investigation into MAPK signaling and its modulation is warranted for therapeutic development.
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