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胰岛素样生长因子-Ⅰ在豚鼠形觉剥夺性近视眼RPE-脉络膜的表达

Journal of Medical Forum(2015)

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Abstract
目的 建立豚鼠形觉剥夺性近视眼模型,研究IGF-Ⅰ mRNA在RPE-脉络膜的变化规律,以探讨IGF-Ⅰ与形觉剥夺性近视发生的关系.方法 实验用三色豚鼠60只,断乳后1周,半透明眼罩遮盖左眼,右眼为对照眼.遮盖4周实验结束时,RT-PCR检测后极部RPE-脉络膜中IGF-Ⅰ mRNA的表达水平.结果 形觉剥夺4周时遮盖眼形成明显的近视,遮盖眼后极部RPE-脉络膜IGF-Ⅰ mRNA表达量为(1.871 ±0.173),对照眼表达量为(1.428 ±0.155),遮盖眼较对照眼表达量升高,两者相比差异具有显著性意义(t=-5.219,P=0.004).结论 IGF-Ⅰ参与豚鼠形觉剥夺性近视形成过程.
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Key words
Form deprivation myopia,Retinal pigment epithelium-choroid,IGF-Ⅰ
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