KMID : 0381919980280040491
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Korean Journal of Microscopy 1998 Volume.28 No. 4 p.491 ~ p.502
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An Ultrastructural Changes of Rat Corneal Epithelium and Stromal layer in Developmental Process
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Kim In-Suk
Kim Jin-Suk Jeon Jin-Seok
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Abstract
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The present study was conducted to investigate the structural changes in rat cornea. Sixty eyes from one-day-old uneyed rats, fourty eyes from 4-weeks-old rats, and foully eyes from 10-weeks-old adult rats were used. With the increase of age, the epithelial layer was thickened by the addition of new successive cellular layers. Then, the new-born rat¡¯s epithelial cells formed a pentagonal shape, and the quality of decidual cells showed a high electron-density, although the boundary between cells was distinctive. The newly produced cells showed a low electron-density so that there was the distinctive difference between light and darkness. In Bowman¡¯s layer, collagen fibrils demonstrate a regularly arranged structure along with the age. In stroma¡¯s layer, the density of keratocytes was decreased and thereby Progressively flattened during the development. The collagenous layer of the adult rats was more distinctive than that of the new-born rats in a form of parallel alignment running vertically and horizontally.
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KEYWORD
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Rat¡¯s Corneal Epithelium, Bowman¡¯s layer, Stroma
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