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- W2140914384 abstract "Background and Purpose— To determine whether the receptor for advanced glycation end-products (RAGE) plays a role in early brain injury from intracerebral hemorrhage (ICH), RAGE expression and activation after injury were examined in a rat model of ICH with or without administration of a RAGE-specific antagonist (FPS-ZM1). Methods— Autologous arterial blood was injected into the basal ganglia of rats to induce ICH. The motor function of the rats was examined, and water content was detected after euthanization. Blood–brain barrier permeability was determined by Evans blue staining and colloidal gold nanoparticle tracers. Nerve fiber injury in white matter was determined by diffusion tensor imaging analysis, and the expression of target genes was analyzed by Western blotting and quantitative reverse transcription polymerase chain reaction. FPS-ZM1 was administered by intraperitoneal injection. Results— Expression of RAGE and its ligand high-mobility group protein B1 were increased at 12 hours after ICH, along with blood–brain barrier permeability and perihematomal nerve fiber injury. RAGE and nuclear factor-κB p65 upregulation were also observed when FeCl 2 was infused into the basal ganglia at 24 hours. FPS-ZM1 administration resulted in significant improvements of blood–brain barrier damage, brain edema, motor dysfunction, and nerve fiber injury, and the expression of RAGE, nuclear factor-κB p65, proinflammatory mediators interleukin 1β, interleukin-6, interleukin-8R, cyclooxygenase-2, inducible nitric oxide synthase, and matrix metallopeptidase-9 was attenuated. Moreover, decreases in claudin-5 and occludin expression were partially recovered. FPS-ZM1 also reversed FeCl 2 -induced RAGE and nuclear factor-κB p65 upregulation. Conclusions— RAGE signaling is involved in blood–brain barrier and white matter fiber damage after ICH, the initiation of which is associated with iron. RAGE antagonists represent a novel therapeutic intervention to prevent early brain injury after ICH." @default.
- W2140914384 created "2016-06-24" @default.
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- W2140914384 date "2015-05-01" @default.
- W2140914384 modified "2023-10-14" @default.
- W2140914384 title "Receptor for Advanced Glycation End-Product Antagonist Reduces Blood–Brain Barrier Damage After Intracerebral Hemorrhage" @default.
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- W2140914384 doi "https://doi.org/10.1161/strokeaha.114.008336" @default.
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