Chapter title |
Vascular Endothelial Growth Factor in Brain Edema Formation After Subarachnoid Hemorrhage
|
---|---|
Chapter number | 31 |
Book title |
Brain Edema XVI
|
Published in |
Acta neurochirurgica Supplement, January 2016
|
DOI | 10.1007/978-3-319-18497-5_31 |
Pubmed ID | |
Book ISBNs |
978-3-31-918496-8, 978-3-31-918497-5
|
Authors |
Lei Liu, Masashi Fujimoto, Fumihiro Kawakita, Naoki Ichikawa, Hidenori Suzuki |
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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