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Effects of hydralazine on NaIO3 induced rat retinal pigment epithelium degeneration

http://www.cnophol.com 2010-7-27 14:50:15 中华眼科在线

 

  Figure 2 Ocular fundus and fluorescein angiogram on NaIO3 treated BN rats (略)

  A: retinograph of 30mg/kg NaIO3 treated BN rat at day 28; B: fluorescein angiogram of 30mg/kg NaIO3 treated BN rat at day 28; C: retinograph of 40mg/kg NaIO3 treated BN rat at day 7; D: fluorescein angiogram of 40mg/kg NaIO3 treated BN rat at day 7; E: retinograph of 40mg/kg NalO3 treated BN rat at day 8

  Figure 3 Histology of retina on NaIO3 treated BN rat eyes (略)

  A: 20mg/kg NaIO3 at 28 days;B: 30mg/kg NaIO3 at 28 days;C: 40mg/kg NaIO3 at 14 days

  Figure 4 Autofluorescence of RPE cells in flatmount induced by laser and measured with confocal microscope(略)

  A:normal RPE cells; B: 30mg/kg NaIO3 at 7 days; C: 40mg/kg NaIO3 at 7 days

  Figure 5 ARPE19 cells proliferation rate after 48hour treatment with NaIO3(略)

  aP<0.05 ,bP<0.01, vs Control

  Figure 6 Effects of hydralazine eyedrops on 35mg/kg NaIO3(略) 

  induced RPE degeneration in rat eyes aP<0.05,bP<0.01, vs Normal, dP<0.01, vs NaIO3

  Acknowledgements The authors are grateful to Prof N.S. Peachey, J. Wu, and M. Yu for invaluable assistance in dcERG equipment assembling and measurement. Supported in party by MacuClear, Inc.

  【参考文献】

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  2 Grignolo A, Orzalesi N, Calabria GA. Studies on the fine structure and the rhodopsin cycle of the rabbit retina in experimental degeneration induced by sodium iodate. Exp Eye Res 1966;5:8697

  3 Hosoda L,AdachiUsami E,Mizota A,Hanawa T,Kimura T.Early effects of sodium iodate injection on ERG in mice. Acta Ophthalmol(Copenh) 1993;71(5):616622

  4 Mizota A, AdachiUsami E. Functional recovery of retina after sodium iodate injection in mice. Vision Res 1997;37(14):18591865

  5 Korte GE, Wanderman MC. Distribution of Na+ K+ATPase in regenerating retinal pigment epithelium in the rabbit. A study by electron microscopic cytochemistry. Exp Eye Res 1993;56:219229

  6 Baich A, Ziegler M. The effect of sodium iodate and melanin on the formation of glyoxylate. Pigment Cell Res1992;5:394395

  7 Sorsby A, Reading HW. Experimental degeneration of the retinaⅪ.The effect of sodium iodate on retinalSH levels. Vision Res 1964;4:511514

  8 Sorsby A, Reading HW. Experimental degeneration of the retinaⅦ.The protective action of thiol donors against the retinotoxic effect of sodium iodate. Vision Res1962;2:139148

  9 Sen HA,Berkowitz BA,Ando N,de Juan E Jr. In vivo imaging of breakdown of the inner and outer bloodretinal barriers. Invest Ophthalmol Vis Sci 1992;33(13):35073512

  10 Flage T, Ringvold A. The retinal pigment epithelium diffusion barrier in the rabbit eye after sodium iodate injection. A light and electron microscopic study using horseradish peroxidase as a tracer. Exp Eye Res 1982;34(6):933940

  11 Ashburn FS, Pilkerton AR, Rao NA, Marak GE. The effects of iodate and iodoacetate on the retinal adhesion. Invest Ophthalmol Vis Sci 1980;19(12):14271432

  12 Stern WH, Ernest JT, Steinberg RH, Miller SS. Interrelationships between the retinal pigment epithelium and the neurosensory retina. Aust J Ophthalmol 1980;8(4):281288

  13 Ohtaka K, Machida S, Ohzeki T, Tanaka M, Kurosaka D, Masuda T, Ishii T. Protective effect of hepatocyte growth factor against degeneration of the retinal pigment epithelium and photoreceptor in sodium iodateinjected rats. Curr Eye Res 2006;31(4):347355

  14 Obata R, Yanagi Y, Tamaki Y, Hozumi K, Mutoh M, Tanaka Y. Retinal degeneration is delayed by tissue factor pathway inhibitor2 in RCS rats and a sodiumiodateinduced model in rabbits. Eye 2005;19(4):464468

  15 AtmacaSonmez P, Li Y, Yamauchi Y, Schanie CL, Ildstad ST, Kaplan HJ, Enzmann V. Systemically transferred hematopoietic stem cells home to the subretinal space and express RPE65 in a mouse model of retinal pigment epithelium damage. Exp Eye Res 2006;83(5):12951302

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