Endothelial NFAT5 is crucial for brain recovery after ischemic stroke
Author Information
Author(s): Kunze Reiner, Wacker Paul, Breuer Paula, Nasyrov Emil, Kur Ivan M., Weigert Andreas, Wagner Andreas H., Marti Hugo H.
Primary Institution: Heidelberg University
Hypothesis
NFAT5 controls the expression of genes regulating the response of brain endothelial cells in the ischemic brain.
Conclusion
Loss of endothelial NFAT5 leads to larger infarct sizes and more severe functional deficits after ischemic stroke.
Supporting Evidence
- Loss of endothelial Nfat5 resulted in expanded infarct sizes after brain ischemia.
- Nfat5 deficiency did not significantly affect overall cell death in the late acute phase after stroke.
- Endothelial NFAT5 is required for an adequate reperfusion response after brain ischemia.
- Impaired perfusion recovery was observed in Nfat5(EC)−/− mice compared to controls.
- Lower levels of KCNJ2 were detected in arterial endothelial cells of Nfat5(EC)−/− mice.
Takeaway
This study shows that a protein called NFAT5 helps brain blood vessels recover after a stroke, and without it, the brain gets hurt more.
Methodology
Mice underwent a stroke model with middle cerebral artery occlusion followed by reperfusion, and various analyses were performed to assess brain damage and recovery.
Potential Biases
Potential bias in the interpretation of results due to the use of a specific mouse model.
Limitations
The study primarily focuses on male mice, which may limit the generalizability of the findings to females.
Participant Demographics
Mice were age-matched and included both male and female subjects.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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