ArticleExperimental eye research2017
Norrin treatment improves ganglion cell survival in an oxygen-induced retinopathy model of retinal ischemia.
Article in Experimental eye research, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed, 27 citations in OpenAlex.
- Article
- Beyond Neovascularization: Light Response Deficits in Oxygen-Induced Retinopathy Models.Investigative ophthalmology & visual science · 2026Review
- Development of Norrin-Based Protein Therapeutic for Activation of Norrin-Wnt Signaling in Human Retinal Endothelial Cells.International journal of molecular sciences · 2025Article
- Long-Term Impairment of Retinal Ganglion Cell Function After Oxygen-Induced Retinopathy.Cells · 2025Article
- Review
- PERK Inhibition Suppresses Neovascularization and Protects Neurons During Ischemia-Induced Retinopathy.Investigative ophthalmology & visual science · 2023Article
- Biological Correlations and Confounders for Quantification of Retinal Ganglion Cells by Optical Coherence Tomography Based on Studies of Outbred Mice.Translational vision science & technology · 2022Article
- Wnt signaling activation: targets and therapeutic opportunities for stem cell therapy and regenerative medicine.RSC chemical biology · 2021Review
- Transgenic models for investigating the nervous system: Currently available neurofluorescent reporters and potential neuronal markers.Biochimica et biophysica acta. General subjects · 2020Review
- Norrin restores blood-retinal barrier properties after vascular endothelial growth factor-induced permeability.The Journal of biological chemistry · 2020Article
- Article
- Article
- Wnt Signaling in vascular eye diseases.Progress in retinal and eye research · 2019Review
- Dendrobium nobile Lindley and its bibenzyl component moscatilin are able to protect retinal cells from ischemia/hypoxia by dowregulating placental growth factor and upregulating Norrie disease protein.BMC complementary and alternative medicine · 2018Article
- Ocular coherence tomography image data of the retinal laminar structure in a mouse model of oxygen-induced retinopathy.Data in brief · 2017Article
- Role of the Endothelium in Neonatal Diseases.Newborn (Clarksville, Md.)Article
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Authors and funding
11 authors at 3 institutions in 1 country.
Funding
Abstract
Treatment of a mouse model of oxygen-induced retinopathy (OIR) with recombinant human Norrin (Norrie Disease Protein, gene: NDP) accelerates regrowth of the microvasculature into central ischemic regions of the neural retina, which are generated after treatment with 75% oxygen. While this reduces the average duration and severity of ischemia overall, we do not know if this accelerated recovery of the microvasculature results in any significant survival of retinal ganglion cells (RGCs). The purpose of this study was to investigate ganglion cell survival with and without the intravitreal injection of Norrin in the murine model of oxygen induced retinopathy (OIR), using two strains of mice: C57BL/6J and Thy1-YFP mice. Intravitreal injections of Norrin or vehicle were done after five days of exposure to 75% oxygen from ages P7 to P12. The C57BL/J mice were followed by Spectral-Domain Optical Coherence Tomography (SD-OCT), and the average nerve fiber layer (NFL) and inner-plexiform layer (IPL) thicknesses were measured at twenty-four locations per retina at P42. Additionally, some C57BL/J retinas were flat mounted and immunostained for the RGC marker, Brn3a, to compare the population density of surviving retinal ganglion cells. Using homozygous Thy1-YFP mice, single intrinsically fluorescent RGCs were imaged in live animals with a Micron-III imaging system at ages P21, 28 and P42. The relative percentage of YFP-fluorescent RGCs with dendritic arbors were compared. At age P42, the NFL was thicker in Norrin-injected OIR eyes, 14.4 μm, compared to Vehicle-injected OIR eyes, 13.3 μm (p = 0.01). In the superior retina, the average thickness of the IPL was greater in Norrin-injected OIR eyes, 37.7 μm, compared to Vehicle-injected OIR eyes, 34.6 μm (p = 0.04). Retinas from Norrin injected OIR mice had significantly more surviving RGCs (p = 0.03) than vehicle-injected mice. Based upon NFL thickness and counts of RGCs, we conclude that Norrin treatment, early in the ischemic phase, increased the relative population density of surviving RGCs in the central retinas of OIR mice.
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