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EFFECT OF ULTRAVIOLET RADIATION ON THE ORAL MUCOSA OF THE RATS

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À¯±¤±æ ( Yoo Kwang-Kil ) - ¼­¿ï´ëÇб³ ´ëÇпø Ä¡ÀÇÇаú º¸Ã¶ÇÐ

Abstract

ÃÖ±Ù Ä¡°ú¿µ¿ª¿¡¼­ Àڿܼ±À» ÀÌ¿ëÇÏ´Â Ä¡·á¹æ¹ýÀÌ ¸¹ÀÌ °³¹ßµÇ°í ÀÖ´Ù. Àڿܼ±Àº »ýü¿¡ ´ëÇÏ¿© °¡¿ªÀû ³»Áö ºÒ°¡¿ªÀûÀÎ »ý¹°ÇÐÀû ¼Õ»óÀ» ÀÔÈ÷´Â °ÍÀ¸·Î ¾Ë·ÁÁ®ÀÖ´Ù. ÀÌ¿¡ ÀúÀÚ´Â Nuva-Lite¸¦ ÀÌ¿ëÇÏ¿© near-ultraviolet°¡ ¹é¼­±¸°­Á¡¸·¿¡ ¹ÌÄ¡´Â ¹Ù¸¦ Á¶Á÷ÇÐÀû ¹× Á¶Á÷È­ÇÐÀûÀ¸·Î °üÂûÇÏ¿´´Ù. ¹é¼­±¸°­Á¡¸·À» ether ¸¶ÃëÇÏ¿¡ ÀýÃëÇÑÈÄ Carnoy¾×°ú 10% Áß¼º¿ÏÃæÆ÷¸£¸»¸°À¸·Î °íÁ¤ÇÑ ÈÄ ÆĶóÇÉÀ¸·Î Áø°øÆ÷¸ÅÇÏ¿´´Ù. ÀýÆíÀº hematoxylin-eosin¿°»ö, Feulgen¹ÝÀÀ, methyl green-pyronin¿°»ö, alloxan Schiff¹ÝÀÀ, -SH±â¿°»ö, PAS¹ÝÀÀ, colloidal iron¹ÝÀÀ, toluidine blue¿°»öÀ» ½Ç½ÃÇÏ¿© ´ÙÀ½°ú °°Àº °á°ú¸¦ ¾ò¾ú´Ù. 1. Àڿܼ± Á¶»ç·Î ÀÎÇÏ¿© 24½Ã°£ ³»Áö 3ÀÏ¿¡ ±Ø¼¼Æ÷Ãþ¿¡¼­ °æ¹ÌÇÑ ¼¼Æ÷³» ºÎÁ¾ÀÌ º¸¿´°í, 6ÀÏ ³»Áö 10ÀÏ¿¡¼­ rete pegÀÌ Áõ´ëµÇ¾ú´Ù. 2. Àڿܼ± Á¶»çÈÄ 6½Ã°£ ³»Áö 3ÀÏ¿¡¼­ Feulgen¹ÝÀÀ¿¡ ¾ç¼ºÀÎ DNA°¡ °¨¼ÒµÇ´Â °æÇâÀ̾ú´Ù. 3. Àڿܼ± Á¶»çÈÄ -SH±â ¹× ¥á-amino»ê ¹ÝÀÀÀÌ »óÇÇÀÇ »óÃþ¿¡¼­ Áõ°¡µÇ´Â °æÇâÀ̾ú´Ù.

Present study investigated the effect of Nuva-Lite irradiation on the labial oral mucosa of the albino rats. The specimens were embedded in parpffin wax and stained with histological and histochemical procedures such as hematoxylin-eosin stain, Feulgen reaction, methyl greenpyronin stain, alloxan Schiff reaction, -SH group reaction, PAS reaction, colloidal iron reaction and toluidine blue stain. The specimens 24 hours to 3 days after ultraviolet irradiation exhibited mild intracellular edema in the prickle cell layer. On 6th and 10th day after irradiation rete peg hyperplasia was prominent. Ultraviolet irradiation caused diminution of Feulgen reacted DNA. However, sulfhydril and ¥á-amino acid radicals were increased at the upper layer of stratified squamous epithelium after irradiation.

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