Search results for "Transient Ischemic Attacks"

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Caspase-3 contributes to ZO-1 and Cl-5 tight-junction disruption in rapid anoxic neurovascular unit damage.

2011

BACKGROUND: Tight-junction (TJ) protein degradation is a decisive step in hypoxic blood-brain barrier (BBB) breakdown in stroke. In this study we elucidated the impact of acute cerebral ischemia on TJ protein arrangement and the role of the apoptotic effector protease caspase-3 in this context. METHODOLOGY/PRINCIPAL FINDINGS: We used an in vitro model of the neurovascular unit and the guinea pig whole brain preparation to analyze with immunohistochemical methods the BBB properties and neurovascular integrity. In both methodological approaches we observed rapid TJ protein disruptions after 30 min of oxygen and glucose deprivation or middle cerebral artery occlusion, which were accompanied by…

Time FactorsAnatomy and Physiologylcsh:MedicineMiceMolecular Cell BiologyPathologySignaling in Cellular ProcessesHypoxia Brainlcsh:ScienceCells CulturedNeuropathologyApoptotic SignalingMultidisciplinaryTight junctionCaspase 3ChemistryAnimal ModelsCell biologyTransport proteinProtein Transportmedicine.anatomical_structureNeurologyBlood-Brain BarrierMedicineResearch ArticleSignal TransductionClinical Research DesignCerebrovascular DiseasesGuinea PigsIschemiaContext (language use)Caspase 3Protein degradationBlood–brain barrierNeurological SystemTight JunctionsCapillary PermeabilityModel OrganismsDiagnostic MedicinemedicineAnimalsTransient Ischemic AttacksAnimal Models of DiseaseClaudinBiologyIschemic Strokelcsh:REndothelial CellsMembrane ProteinsPhosphoproteinsmedicine.diseaseAnatomical PathologyClaudinsImmunologyZonula Occludens-1 ProteinNervous System Componentslcsh:QPLoS ONE
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