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RESEARCH PRODUCT
Short-Time Ocular Ischemia Induces Vascular Endothelial Dysfunction and Ganglion Cell Loss in the Pig Retina
Ning XiaHuige LiJenia Kouchek ZadehAndreas Garcia-bardonNorbert PfeifferMarion LudwigAdrian GerickeWael OmranAndreas PatzakErik K. Hartmannsubject
Retinal Ganglion CellsVascular Endothelial Growth Factor A0301 basic medicinePathologySwineNitric Oxide Synthase Type IIVasodilationendothelial dysfunctionlcsh:Chemistrychemistry.chemical_compound0302 clinical medicineIschemiaEndothelial dysfunctionlcsh:QH301-705.5SpectroscopyGeneral MedicineComputer Science ApplicationsArteriolesmedicine.anatomical_structureRetinal ganglion cellReperfusion InjuryNADPH Oxidase 2medicine.medical_specialtyEndotheliumRetinal ArteryI/R injuryIschemiaretinal arteriolesBradykininRetinal ganglionRetinaArticleCatalysisganglion cell lossInorganic Chemistry03 medical and health sciencesmedicineAnimalsPhysical and Theoretical ChemistryMolecular BiologyRetinabusiness.industryOrganic ChemistryRetinalHypoxia-Inducible Factor 1 alpha Subunitmedicine.disease030104 developmental biologylcsh:Biology (General)lcsh:QD1-999chemistry030221 ophthalmology & optometryEndothelium VascularReactive Oxygen Speciesbusinessdescription
Visual impairment and blindness are often caused by retinal ischemia-reperfusion (I/R) injury. We aimed to characterize a new model of I/R in pigs, in which the intraocular pathways were not manipulated by invasive methods on the ocular system. After 12 min of ischemia followed by 20 h of reperfusion, reactivity of retinal arterioles was measured in vitro by video microscopy. Dihydroethidium (DHE) staining, qPCR, immunohistochemistry, quantification of neurons in the retinal ganglion cell layer, and histological examination was performed. Retinal arterioles of I/R-treated pigs displayed marked attenuation in response to the endothelium-dependent vasodilator, bradykinin, compared to sham-treated pigs. DHE staining intensity and messenger RNA levels for HIF-1&alpha
year | journal | country | edition | language |
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2019-09-21 | International Journal of Molecular Sciences |