Abstract
Vascular endothelial growth factor (VEGF) has been implicated in the pathogenesis of brain edema formation after experimental subarachnoid hemorrhage (SAH). In this study, we evaluated the effect of anti-VEGF antibody neutralization on brain edema formation after experimental SAH in mice. Mice underwent sham operation or filament puncture SAH and were assigned to sham, SAH + vehicle, or SAH + anti-VEGF antibody groups. Vehicle or anti-VEGF antibody was administrated by an intracerebroventricular injection at 30 min post-SAH. After 24 h of SAH modeling, neurological score was recorded to evaluate neurobehavioral functions, brain water content was calculated to assess the level of brain edema, and immunohistochemistry of immunoglobulin (Ig) G was performed to evaluate the permeability of the blood-brain barrier (BBB). Anti-VEGF antibody significantly ameliorated neurological score and brain edema after SAH compared with the SAH + vehicle group. Immunohistochemistry showed that post-SAH IgG extravasation in brain tissue was suppressed by anti-VEGF antibody. This study suggests that VEGF is involved in brain edema formation after SAH, and that anti-VEGF antibody can decrease BBB permeability, suppress brain edema formation, and improve functional outcome after 24 h of SAH.
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Liu, L., Fujimoto, M., Kawakita, F., Ichikawa, N., Suzuki, H. (2016). Vascular Endothelial Growth Factor in Brain Edema Formation After Subarachnoid Hemorrhage. In: Applegate, R., Chen, G., Feng, H., Zhang, J. (eds) Brain Edema XVI. Acta Neurochirurgica Supplement, vol 121. Springer, Cham. https://doi.org/10.1007/978-3-319-18497-5_31
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DOI: https://doi.org/10.1007/978-3-319-18497-5_31
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