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The effect of alendronates administration duration on the healing of extraction socket in rats: pilot study

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±èÁöȯ ( Kim Jee-Hwan ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ º¸Ã¶Çб³½Ç
È«Á¾È¯ ( Hong Jong-Hwan ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ º¸Ã¶Çб³½Ç
ÃÖÇö¹Î ( Choi Hyun-Min ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ º¸Ã¶Çб³½Ç
¹Ú¿µ¹ü ( Park Young-Bum ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ º¸Ã¶Çб³½Ç
¹®È«¼® ( Moon Hong-Seok ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ º¸Ã¶Çб³½Ç

Abstract

¿¬±¸ ¸ñÀû: º» ¿¬±¸¿¡¼­´Â ¾Ë·»µå·Î³×ÀÌÆ® Åõ¿©±â°£ÀÇ Â÷ÀÌ°¡ ¹é¼­ÀÇ »ó¾Ç Á¦ 1´ë±¸Ä¡ ¹ßÄ¡¿ÍÀÇ Ãʱâ â»óÄ¡À¯¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» ¾Ë¾Æº¸°íÀÚ ÇÏ¿´´Ù.

¿¬±¸ Àç·á ¹× ¹æ¹ý: 4ÁÖ·É Sprague Dawley Rat (Body weight 130-140 g) 15¸¶¸®¸¦ ÀÌ¿ëÇÏ¿© ¾Ë·»µå·Î³×ÀÌÆ®(Merial Inc., Parramatta, Australia) Åõ¿©±º(½ÇÇ豺)°ú Åõ¿©ÇÏÁö ¾ÊÀº ´ëÁ¶±ºÀ¸·Î ³ª´©°í ½ÇÇ豺Àº ´Ù½Ã Åõ¿©±â°£¿¡ µû¶ó 1ÁÖ Åõ¿©±ººÎÅÍ 2ÁÖ Åõ¿©±º, 4ÁÖ Åõ¿©±º, 6ÁÖ Åõ¿©±º±îÁö ÃÑ 4°³ÀÇ ½ÇÇ豺À¸·Î ³ª´³´Ù. ½ÇÇ豺¿¡ Á¤ÇØÁø ½Ã±â(¹ßÄ¡ 5 ÁÖÀü, ¹ßÄ¡ 3ÁÖÀü, ¹ßÄ¡ 1ÁÖÀü, ¹ßÄ¡ ½Ã)ºÎÅÍ ¹ßÄ¡ 1ÁÖ ÈıîÁö ¾Ë·»µå·Î³×ÀÌÆ®¸¦ 1 mg/kgÀÇ ³óµµ·Î ÁÖ 3ȸ ÇÇÇÏÁÖ»ç ÇÑ ÈÄ 6ÁÖ Åõ¿©±º°ú ´ëÁ¶±º¿¡¼­ ÇÑ °³Ã¼¾¿À» ÀÌ¿ëÇÏ¿© ¹Ì¼¼¹è¿­(microarray)ºÐ¼®À» ½Ç½ÃÇÏ¿´°í, ´Ù¸¥ ½ÃÆíµéÀ» ÀÌ¿ëÇÏ¿© Á¶Á÷ÇÐÀû ºÐ¼®À» ½ÃÇàÇÏ¿´´Ù. ¹ßÄ¡¿Í ³»¿¡¼­ÀÇ ½Å»ý°ñÀÇ Çü¼º ºñÀ²°ú ¹ßÄ¡¿Í ÁÖÀ§ °ñ¿¡¼­ È°¼ºÀ» ÀÒÀº »À¿¡ ´ëÇØ ºÐ¼®ÇÏ¿´°í, ÆÄ°ñ¼¼Æ÷ Ç¥ÁöÀÚÀÎ TRAP ¿°»öÀ» ÇÏ¿© ºÐ¼®ÇÏ¿´´Ù. Åë°èÀûÀÎ ºÐ¼®À¸·Î Å©·ç½ºÄÃ-¿Ð¸®½º °ËÁ¤(Kruskal Wallis test)À» ½Ç½ÃÇÏ¿´´Ù(¥á=.05).

°á°ú: ¹ßÄ¡ ÈÄ 1ÁÖ ½ÃÁ¡¿¡¼­ÀÇ ¹ßÄ¡¿Í ³»¿¡¼­ÀÇ ½Å»ý°ñÀÇ »ý¼º ºñÀ²Àº ´ëÁ¶±ºº¸´Ù (16.77% ¡¾ 1.36%) 4ÁÖ Åõ¿©±º(14.99% ¡¾ 6.26%)¿¡¼­ ´õ ³·°Ô ³ª¿À´Â °æÇâÀº ÀÖ¾úÁö¸¸ À¯ÀÇÇÏÁö´Â ¾Ê¾Ò´Ù. Åõ¿©±â°£ÀÌ Áõ°¡ÇÒ¼ö·Ï È°¼ºÀ» ÀÒÀº °ñ¼ö°­(empty lacuna)ÀÇ ¼ö´Â Áõ°¡ÇÏ¿´°í, TRAP positive cell ¼ö´Â °¨¼ÒÇÏ´Â °æÇâÀÌ ÀÖÀ¸³ª À¯ÀÇÇÏÁö´Â ¾Ê¾Ò´Ù.

°á·Ð: º» ¿¹ºñ½ÇÇèÀ» ÅëÇؼ­ ¾Ë·»µå·Î³×ÀÌÆ®ÀÇ Åõ¿©±â°£ÀÌ Áõ°¡ÇÒ¼ö·Ï ½Å»ý°ñÀÇ »ý¼º ºñÀ²ÀÌ °¨¼ÒµÇ°í È°¼ºÀ» ÀÒÀº »ÀµéÀÌ ¸¹¾ÆÁö¸ç ÆÄ°ñ¼¼Æ÷ÀÇ ¼ö´Â ÁÙ¾îµå´Â °æÇâÀÌ ÀÖÀ½À» ¾Ë ¼ö ÀÖ¾úÀ¸³ª Åë°èÀûÀ¸·Î À¯ÀÇÂ÷´Â ¾ø¾ú´Ù.

PURPOSE: The purpose of this study was to investigate the effect of different administration duration of alendronate on initial wound healing and new bone formation of extraction socket in rats.

MATERIALS AND METHODS: Fifteen male Sprague-Dawley rats (body weight 130-140 g, 4 weeks old, male) were divided into control group (no alendronate administration) and experimental group (alendronate administration). Experimental group was subdivided into 1 week administrated group, 2 week administrated group, 4 week administrated group and 6 week administrated group according to duration of administration. For the experimental groups, during the designated time period (at the time of extraction, 1 week before extraction, 3 week before extraction and 5 week before extraction) till 1 week after extraction, rats were subcutaneously injected with Alendronate at the dose of 1.0 mg/Kg three times a week. Each specimen from 6 week experimental group and control group were used for microarray analysis, and other specimens were used for histological analysis. The rate of new bone formation within the extraction site and bone loss activity was analyzed using TRAP staining. Statistical analysis was performed using Kruskal Wallis test. (¥á=.05)

RESULTS: After one week from the time of extraction, the rate of new bone formation within extraction site for the control group (16.77% ¡¾ 1.36%) compared to the 4 week experimental group (14.99% ¡¾ 6.26%) was lower. However, no statistically significant difference was found. Increase in the number of inactive lacuna (empty lacuna) and decrease in the number of TRAP positive cell were identified with increased duration of administration. There was no significant difference.

CONCLUSION: The results of this study showed as the duration of Alendronate administration increased the rate of new bone formation decreased with loss of bone activity and reduced number of osteoclast.

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¾Ë·»µå·Î³×ÀÌÆ®; ºñ½ºÆ÷½ºÆ÷³×ÀÌÆ®; ¹ßÄ¡¿Í; ºñ½ºÆ÷½ºÆ÷³×ÀÌÆ® ¿¬°ü ¾Ç°ñ±«»ç; â»óÄ¡À¯
Alendronate; Bisphosphonate; Extraction socket; bisphosphonate related osteonecrosis of jaw; Wound healing

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