Àá½Ã¸¸ ±â´Ù·Á ÁÖ¼¼¿ä. ·ÎµùÁßÀÔ´Ï´Ù.

¹æ»ç¼±Á¶»ç¿¡ µû¸¥ ¹é¼­ ¾ÇÇϼ±³» Ç÷°ü ³»ÇǼ¼Æ÷ ¹Ì¼¼±¸Á¶ÀÇ Á¶±âº¯È­

EARLY IRRADIATION EFFECTS ON THE ULTRASTRUCTURE OF THE CAPILLARY ENDOTHELIAL GELL IN THE RAT SUBMANDIBULAR GLANDS

Ä¡°ú¹æ»ç¼± 1995³â 25±Ç 1È£ p.71 ~ 87
¹ÚÁö±Ç, ¹Î°æÈ£, ¹Ú»óÁø, Á¤Àç¹Î,
¼Ò¼Ó »ó¼¼Á¤º¸
¹ÚÁö±Ç (  ) - °æºÏ´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°ú¹æ»ç¼±ÇÐ
¹Î°æÈ£ (  ) - °æºÏ´ëÇб³ Ä¡°ú´ëÇÐ ±¸°­ÇغÎÇÐ
¹Ú»óÁø (  ) - °æºÏ´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°ú¹æ»ç¼±ÇÐ
Á¤Àç¹Î (  ) - °æºÏ´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°ú¹æ»ç¼±ÇÐ

Abstract

¹æ»ç¼±Á¶»ç¿¡ µû¸¥ Ÿ¾×¼±³» Ç÷°ü ³»ÇǼ¼Æ÷ ¹Ì¼¼±¸Á¶ÀÇ Á¶±âº¯È­¸¦ °üÂûÇϱâ À§ÇÏ¿© ¹é¼­
ÀÇ µÎ°æºÎ¿¡ 6MV X¼±À» 2Gy,5Gy ¹× 10Gy ´ÜÀÏÁ¶»çÇÑ ÈÄ 3½Ã°£, 6½Ã°£, 12½Ã°£, 1ÀÏ, 3ÀÏ,
7ÀÏ, ±×¸®°í 14ÀÏ¿¡ Èñ»ý½ÃÅ°°í, Á¶Á÷ÇÐÀû º¯È­ ¹× Ç÷°ü ³»ÇǼ¼Æ÷ÀÇ ¹Ì¼¼±¸Á¶Àû º¯È­¸¦ °üÂû
ÇÏ¿´À¸¸ç, Ç÷°ü·¹ÁøÁÖÇüÀ» ÅëÇØ ¹Ì¼¼Ç÷°ü°èÀÇ ÁÖÇà ¹× ÇüÅÂÇÐÀû º¯È­¸¦ °ËÅäÇÏ¿© ´ÙÀ½ÀÇ °á
°ú¸¦ ¾ò¾ú´Ù.
1. ¹Ì¼¼Ç÷°üÀº 2Gy ¹× 5GyÁ¶»çÈÄ 6½Ã°£±º¿¡¼­ È®ÀåµÇ¾ú°í 12½Ã°£±º¿¡¼­ ºÐÆ÷¹Ðµµ°¡ Áõ°¡
µÇ¾úÀ¸¸ç, 3Àϱº°ú 7Àϱº¿¡¼­´Â Å©±â ¹× ºÐÆ÷¹Ðµµ°¡ °¨¼ÒµÇ¾úÀ¸³ª, 14Àϱº¿¡¼­ ´Ù¼Ò ȸº¹µÇ
¾ú´Ù. 10GyÁ¶»ç±º¿¡¼­´Â Á¶»çÈÄ 7Àϱº±îÁöÀÇ ¼Ò°ßÀº À¯»çÇÏ¿´À¸³ª ¹ÝÀÀÁ¤µµ°¡ º¸´Ù ºü¸£°í
ºÐ¸íÇÏ¿´°í, 14Àϱº¿¡¼­µµ ¹Ì¼¼Ç÷°üÀÇ ºÐÆ÷¹Ðµµ´Â °¨¼ÒµÇ¾î ³ªÅ¸³µ´Ù.
2. Ç÷°ü ³»ÇǼ¼Æ÷ÀÇ ¹Ì¼¼±¸Á¶Àû º¯È­´Â ¹æ»ç¼± Á¶»çÈÄ 3½Ã°£±º¿¡¼­ ³»°­ Ãà¼Ò¿Í ¼¼Æ÷Áúµ¹
±âÀÇ ¹Ì¾àÇÑ Áõ½ÄÀÌ °üÂûµÇ¾ú°í, 1ÀϱºÀÌÈÄ¿¡¼­´Â ³»ÇǼ¼Æ÷ÀÇ Á¾Ã¢°ú ÇÔ²² ¼¼Æ÷Áúµ¹±âÀÇ Áõ
½Ä, ±âÀú¸·ÀÇ ºñÈÄ, ¼¼Æ÷Áú³» Æ÷À½¼ÒÆ÷ÀÇ Áõ°¡°¡ ºÐ¸íÇÏ¿´´Ù. 7Àϱº±îÁö ±âÀú¸·ÀÇ ºñÈÄ¿Í ¼¼
Æ÷Áúµ¹±âÀÇ À¯ÇÕ»óÀÌ Áö¼ÓÀûÀ¸·Î °üÂûµÇ¾úÀ¸¸ç, 2Gy¿Í 5Gy Á¶»çÈÄ 14Àϱº¿¡¼­´Â Á¤»óÀ¸·Î
ȸº¹µÇ´Â ¾ç»óÀ̾úÀ¸³ª 10GyÁ¶»ç±º¿¡¼­´Â ȸº¹µÇÁö ¾Ê¾Ò´Ù.
3. Ç÷°ü ·¹ÁøÁÖÇüÀÇ ÁÖ»çÀüÀÚÇö¹Ì°æ ¼Ò°ßÀº 10Gy Á¶»ç ÈÄ 1Àϱº¿¡¼­ ºÎºÐÀû È®Àå°ú Çù¼Ò
È­ ¹× ¸¸°î»óÀÌ °üÂûµÇ¾úÀ¸¸ç, 3ÀϱºÀÌÈÄ¿¡¼­´Â ±¼°î, ÇùÂø ¹× ´ÜÀý»óÀÌ ³ªÅ¸³µ°í, ·¹ÁøÁÖÇü
Ç¥¸éÀÇ °ÅÄ¥±â°¡ Áõ°¡ÇÏ¿´´Ù.
4. ÀÌ»óÀÇ °á°ú·Î ¹Ì·ç¾î º¸¾Æ, 2GyÀÌ»óÀÇ ¼±·®ÀÌ Á¶»çµÈ ÈÄ ÇϾ׼±³» ¹Ì¼¼Ç÷°üÀº 6½Ã°£
À̳»¿¡ ³»ÇǼ¼Æ÷ÀÇ Á¾Ã¢°ú ¼¼Æ÷Áúµ¹±âÀÇ Áõ½Ä ¹× ±âÀú¸·ÀÇ ºñÈÄ°¡ ¾ß±âµÇ°í, º¸»óÁ¶Ä¡·Î¼­
Á¶»çÈÄ 12½Ã°£¿¡¼­ ¹Ì¼¼Ç÷°üÀÇ ºÐÆ÷¹Ðµµ ¹× Ç÷°ü ³»°­ÀÇ Å©±âÁõ°¡¿Í ¼¼Æ÷Áú³» Æ÷À½¼ÒÆ÷ÀÇ
¼ýÀû Áõ°¡¸¦ ÅëÇØ Åõ°ú¼ºÀÌ Ç×ÁøµÇ´Â °ÍÀ¸·Î ³ªÅ¸³µ°í, 10GyÀ̳»ÀÇ ¼±·®¿¡¼­ ÀÌ·¯ÇÑ º¯È­
´Â Á¶»ç·®¿¡ ºñ·ÊÇÏ¿© ºü¸£°í ºÐ¸íÇÏ¿´´Ù.
#ÃÊ·Ï#
The purpose of this study was to investigate the early irradiation changes on the
ultrastructure of the capillary endothelial cell in the rat submandibular glands. For the
study, 110 Sprague-Dawley strain male rats were singly Irradiated to their neck regions
with the doses of 2Gy, 5Gy, and l0Gy by 6MV X-irradiation, and sacrificed on the 3
hours, 6 hours, 12 hours, 1 day, 3 days, 7 days, and 14 days after irradiation.
The authors observed the histologic and ultrastructural changes of the capillary
endothelial cell using the light and electron microscopes. The results were as follows:
1. In the light microscopic examination, the capillary dilation was observed on the 6
hours group and the capillary density was slightly increased on the 12 hours group after
2Gy and 5Gy irradiation. And luminal size and capillary density were decreased on the 3
days and the 7 days groups after irradiation, after then, they were recovered. But
capillary density was still decreased on the 14 days group after l0Gy irradiation.
2. In the transmission electron microscopic examination, the mild proliferation of
cytoplasmic process of the endothelial cell and reduction in luminal size were observed
on the 3 hours group after irradiation. After then, endothelial swelling, marked
proliferation of cytoplasmic process, thickened basal lamina, and numerous pinocytotic
vesicles were observed after the 1 day group after irradiation. Thickened basal lamina
and numerous pinocytotic vesicles were still observed until the 7 days group after
irradiation. These changes were recovered to normal on the 14 days group after 2Gy
and 5Gy irradiation, but not after 10Gy irradiation.
3. In the scanning electron microscopic examination, the dilation of conduits and
constriction, and meandering were observed on the 1 day group after 10Gy irradiation.
These changes were observed with increased coarseness of the surface of the vascular
resin casting on the 3 days group after irradiation.
4. From the above results, endothelial swelling, proliferation of cytoplasmic process,
and thickening of the basal lamina appeared before the 6 hours group after irradiation.
And these changes may also induce the increase of the capillary numbed and luminal
size, after then, capillary permeability was increased via the increase of the number of
pinocytotic vesicles. The changes were observed earlier and more apparent with the
increase of the irradiation doses under the dose of 10Gy irradiation.

Å°¿öµå

¿ø¹® ¹× ¸µÅ©¾Æ¿ô Á¤º¸

  

µîÀçÀú³Î Á¤º¸