Cited by 91Acute Ischemic Stroke ManagementNeurological Disorders and TreatmentsNitric Oxide and Endothelin Effects

NADPH oxidase Nox1 contributes to ischemic injury in experimental stroke in mice

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Kahles, Timo, Kohnen, Andreas, Heumueller, Sabine, Rappert, Angelika, Bechmann, Ingo, Liebner, Stefan, Wittko, Ina M., Neumann-Haefelin, Tobias +3 more·2010·Neurobiology of Disease

Abstract

Reactive oxygen species (ROS) are mediators of brain injury in ischemia/reperfusion. An involvement of the NADPH oxidase Nox2 has been demonstrated. In contrast, only little is known about the contribution of the Nox1 homologue in this context. Thus, we studied the role of Nox1 in early cerebral reperfusion injury in the middle cerebral artery filament occlusion model using Nox1 knockout mice. Genetic deletion of a functional Nox1 lead to a 55% attenuation in lesion size at 24h after induction of 1h ischemia (p<0.05). This result was paralleled by a significant improvement of neurological outcome, preservation of blood-brain barrier integrity and reduced cerebral edema in Nox1(y/)(-) compared to WT mice. Interestingly, no difference in infarct size between WT and Nox1(y/)(-) was observed with an occlusion time of 2h and longer. Apoptosis rate as measured by TUNEL staining was similar between the groups. Moreover, infusion of the antioxidant TEMPOL as well as of the unspecific NO-synthase inhibitor l-NAME elicited similar changes with respect to ischemic tissue damage between WT and Nox1-deficient mice. In conclusion, Nox1 is involved in the pathophysiology of cerebral ischemia. Our data however indicate that ROS-mediated direct cellular injury is unlikely to explain the protective effect achieved by genetic deletion of the enzyme.

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Crossref · 10.1016/j.nbd.2010.05.023

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  • Studies have shown links between high NOX1 levels and hypertension, diabetes, ischemia/reperfusion injury, and coronary artery disease.

    “Increased NOX1 activity is associated with vascular disease, and studies have shown links between high NOX1 levels and hypertension (1015), diabetes (163, 380, 1003), ischemia/reperfusion injury (479), and coronary artery disease (393).”

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Authors
Kahles, T., Kohnen, A., Heumueller, S., Rappert, A., Bechmann, I., Liebner, S., Wittko, I. M., Neumann-Haefelin, T., Steinmetz, H., Schroeder, K., & Brandes, R. P.
Affiliations
Goethe University Frankfurt (DE)
Corresponding author
Kahles, Timo
Venue
Neurobiology of Disease
Publisher
Elsevier BV
Published
2010-10
Volume
40
Issue
1
Pages
185-192
ISSN
0969-9961 (ISSN-L)
OpenAlex
W2034340179
Cited by
91
References
37
Citations by year
2026: 1 · 2025: 2 · 2024: 5 · 2023: 1 · 2022: 3 · 2021: 7 · 2020: 2 · 2019: 2 · 2018: 5 · 2017: 4 · 2016: 9 · 2015: 10 · 2014: 6 · 2013: 9 · 2012: 16
FWCI
7.91
Type
journal article
Language
en
Open access
Locations
  • Neurobiology of Disease (publishedVersion)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
Deutsche Forschungsgemeinschaft
Topics
  • Health Sciences › Medicine › Epidemiology › Acute Ischemic Stroke Management
  • Life Sciences › Neuroscience › Neurology › Neurological Disorders and Treatments
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
Keywords
cerebral ischemia, ischemic stroke, ischemia-reperfusion injury, reactive oxygen species, middle cerebral artery occlusion, infarct size, blood-brain barrier integrity, cerebral edema, tempol, L-NAME, apoptosis, neuroprotection
MeSH terms
NADPH Oxidase 1, Animals, Cells, Cultured, Brain Ischemia, Disease Models, Animal, Female, Male, Mice, Inbred C57BL, NADH, NADPH Oxidoreductases, Nerve Degeneration, Mice, Knockout, Infarction, Middle Cerebral Artery, Brain Infarction, Stroke, Mice

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