Title : Effects of deferoxamine on blood-brain barrier disruption and VEGF in focal cerebral ischemia.

Pub. Date : 2008 Apr

PMID : 17767813






6 Functional Relationships(s)
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1 OBJECTIVE: Deferoxamine, an iron chelator, is reported to induce hypoxia-inducible factor 1 (HIF-1) that leads to transcriptional activation of numerous genes including vascular endothelial growth factor (VEGF) that is known to increase blood-brain barrier (BBB) permeability. Deferoxamine vascular endothelial growth factor A Rattus norvegicus
2 OBJECTIVE: Deferoxamine, an iron chelator, is reported to induce hypoxia-inducible factor 1 (HIF-1) that leads to transcriptional activation of numerous genes including vascular endothelial growth factor (VEGF) that is known to increase blood-brain barrier (BBB) permeability. Deferoxamine vascular endothelial growth factor A Rattus norvegicus
3 This study was performed to test whether deferoxamine would disrupt BBB further in focal cerebral ischemia by altering the level of VEGF. Deferoxamine vascular endothelial growth factor A Rattus norvegicus
4 The number of areas that were stained with VEGF antibody in the deferoxamine 18 group (106 +/- 5/mm2) was significantly higher than that in the control group (54 +/- 2/mm2) or deferoxamine 48 group (58 +/- 1/mm2). Deferoxamine vascular endothelial growth factor A Rattus norvegicus
5 DISCUSSION: Our data suggest that deferoxamine induced an increase in VEGF but that its effect depends on the time of administration. Deferoxamine vascular endothelial growth factor A Rattus norvegicus
6 The increase in VEGF by deferoxamine could aggravate the disruption of BBB in focal cerebral ischemia. Deferoxamine vascular endothelial growth factor A Rattus norvegicus