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GFAP IMMUNOREACTIVITY IN SATELLITE CELLS OF TRIGEMINAL GANGLION FOLLOWING AXOTOMY OF INFERIOR ALVEOLAR NERVE IN RAT

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Abstract

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GFAP´Â ¾Æ±³¼¼Æ÷ÀÇ ¼¼Æ÷Áú¿¡ ºÐÆ÷ÇÏ´Â Áß°£¼¼»çÀÇ ÇÑ Á¾·ù·Î ½Å°æ ¼Õ»ó ÈÄ¿¡ ¸é¿ª¹ÝÀÀ
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½Ã°£ °æ°ú¿¡ µû¸¥ GFAP-IRÀÇ º¯È­ ¹× ½Å°æÀý³»ÀÇ ¹ÝÀÀ ºÎÀ§¸¦ °üÂûÇÏ°íÀÚ º» ½ÇÇèÀ» ½ÃÇà
ÇÏ¿´´Ù. Sprague-Dawley°è ÈòÁã 12¸¶¸®¸¦ ¾Ï, ¼ö ±¸ºÐ ¾øÀÌ »ç¿ëÇÏ¿´´Ù. ÁÂÃø ÇϾÇÁö¸¦ õ
°øÇÑ ´ÙÀ½ ÇÏÄ¡Á¶½Å°æÀ» Àý´ÜÇÏ¿© °¢ 3ÀÏ, 7ÀÏ °æ°ú ÈÄ¿¡ »ïÂ÷½Å°æÀýÀ» ÀûÃâÇÏ¿© Á¶Á÷ó¸®
ÇÏ¿© ABC ¹æ¹ýÀ» ÀÌ¿ëÇÏ¿© ¸é¿ªÁ¶Á÷È­ÇÐ ¿°»öÀ» ½ÃÇàÇÏ¿´´Ù.
1. ´ëÁ¶±º:»ïÂ÷½Å°æÀý Á߽ɻѸ®ÀÇ º°¾Æ±³¼¼Æ÷¿¡¼­ °­ÇÑ GFAP-IR¸¦ º¸¿´´Ù. ±×·¯³ª »ïÂ÷
½Å°æÀý³»ÀÇ À§¼º¼¼Æ÷¿¡¼­´Â ¾àÇÑ GFAP-IR¸¦ º¸¿´´Ù ½Å°æÀý³»ÀÇ À§¼º¼¼Æ÷¿¡¼­ÀÇ ¹ÝÀÀ¾ç»ó
Àº »ïÂ÷½Å°æÀýÀÇ Æ¯Á¤ÇÑ ºÎÀ§¿¡ ±¹ÇѵÇÁö ¾Ê°í ÆÛÁ® ÀÖ´Â ¾ç»óÀ» º¸¿´´Ù.
2. ÇÏÄ¡Á¶½Å°æ Àý´Ü ÈÄ 3ÀÏ °æ°ú±º:»ïÂ÷½Å°æÀýÀÇ ÇϾǽŰæºÎÀ§ÀÇ À§¼º¼¼Æ÷¿¡¼­ ¸Å¿ì °­ÇÑ
GFAP-IR¸¦ º¸¿´´Ù. ÀÎÁ¢ÇÑ »ó¾Ç½Å°æºÎÀ§ ¹× ¾È½Å°æºÎÀ§ÀÇ À§¼º¼¼Æ÷ÀÇ GFAP-IR´Â ÇϾǽÅ
°æºÎÀ§¿¡ ºñÇÏ¿© ¹Ì¾àÇÏ¿´´Ù
3. ÇÏÄ¡Á¶½Å°æ Àý´Ü ÈÄ 7ÀÏ °æ°ú±º ´ëÁ¶±º¿¡¼­º¸´Ù Áõ°¡µÈ GFAP-IR°¡ ½Å°æÀýÀÇ ÇϾǽÅ
°æºÎÀ§¿¡¼­ °üÂûµÇ¾úÀ¸³ª, ±× Á¤µµ´Â 3ÀÏ °æ°ú±º°ú ºñ±³ÇÏ¿© ¾àÇÏ°Ô °üÂûµÇ¾ú´Ù.
ÀÌµé °á°ú¸¦ Á¾ÇÕÇÏ¿© º¸¸é, ÇÏÄ¡Á¶½Å°æ Àý´Ü ÈÄ¿¡ »ïÂ÷½Å°æÀý À§¼º¼¼Æ÷ÀÇ GFAP´Â »ïÂ÷
½Å°æÀý³»ÀÇ ¼Õ»ó°ú °ü·ÃµÈ ƯÁ¤ ºÎÀ§¿¡¼­ Áõ°¡¸¦ ³ªÅ¸³»¸ç, ÀÌ·¯ÇÑ º¯È­´Â »ïÂ÷½Å°æÅë ¿¬±¸
¿¡ À¯¿ëÇÑ ÀڷḦ Á¦°øÇϸ®¶ó »ç·áµÈ´Ù
#ÃÊ·Ï#
Glial fibrillary acidic proteins (GFAP) are a group of intermediate filaments that are
distributed in the cytoplasm of glial cells. GFAP immunoreactivity (GFAP-IR) increase
after central and peripheral nerve injuries. The purpose of this study was to determine
change of GFAP-IR in rat trigeminal ganglion satellite cells following the axotomy of
inferior alveolar nerve(IAN). The immunohistochemistry was carried out using the
avidin-biotin-per-oxidase complex (ABC) method.
1. Control group : Astrocytes in central root of trigeminal ganglion had strong
GFAP-IR, but satellite cells of trigeminal ganglion occasionally had GFAP-IR. The
patterns of reactivity in satellite cells of trigeminal ganglion were not concenturated in
any specific region of trigeminal ganglion.
2. Three day group after IAN axotomy There were highly GFAP-IR in satellite cells
of trigeminal ganglion in mandibular region. GFAP-IR in maxillary and ophthalmic
regions were less intense compared to mandibular region.
3. Seven day group after IAN axotomy : GFAP-IR that were increased compared to
control group were seen in the mandibular region. But GFAP-IR were less intense
compared to three day group.
These results suggest that GFAP-IR increase in specific region of trigeminal ganglion
following peripheral axotomy, therefore we suppose that GFAP study offer research tool
in trigeminal neuralgia.

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