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Antibacterial Effect on Oral Pathogenic Bacteria of Phytoncide from Chamaecyparis Obtusa

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°­¼ö°æ ( Kang Soo-Kyung ) - °æÈñ´ëÇб³ Ä¡°ú´ëÇÐ ±¸°­³»°úÇб³½Ç
½Å¹Ì°æ ( Shin Mi-Kyoung ) - °æÈñ´ëÇб³ Ä¡°ú´ëÇÐ ±¸°­»ý¹°Çבּ¸¼Ò
¾î±Ô½Ä ( Auh Q-Schick ) - °æÈñ´ëÇб³ Ä¡°ú´ëÇÐ ±¸°­³»°úÇб³½Ç
Àü¾çÇö ( Chun Yang-Hyun ) - °æÈñ´ëÇб³ Ä¡°ú´ëÇÐ ±¸°­³»°úÇб³½Ç
È«Á¤Ç¥ ( Hong Jung-Pyo ) - °æÈñ´ëÇб³ Ä¡°ú´ëÇÐ ±¸°­³»°úÇб³½Ç

Abstract

õ¿¬ ½Ä¹° ÃßÃâ¹°À» ±¸°­ Áúȯ ºÐ¾ß¿¡ È°¿ëÇÏ´Â ¹æ¾ÈÀÌ ´Ù¾çÇÏ°Ô ¸ð»öµÇ°í ÀÖ´Ù. º» ¿¬±¸´Â Æí¹é³ª¹«¿¡¼­ ÃßÃâÇÑ Èֹ߼º Á¤À¯ÀÎ ÇÇÅæÄ¡µå¸¦ Ä¡ÀÇÇко߿¡ È°¿ëÇÏ°íÀÚ Ä¡¾Æ¿ì½ÄÁõ ¿øÀαÕÀÎ Streptococcus mutans GS5¿Í Streptococcus sobrinus 6715, ±ÞÁø¼º Ä¡ÁÖ¿°¿¡ °ü·ÃµÈ Actinobacillus actinomycetemcomitans Y4¿¡ ´ëÇÑ Ç×±ÕÈ¿°ú¸¦ ¹Ì»ý¹°ÇÐÀûÀ¸·Î ½ÇÇèÇÏ¿´´Ù. Èí±¤µµ ÃøÁ¤, »ý±Õ¼ö °Ë»ç, Ç×»ýÁ¦ °¨¼ö¼º °Ë»ç¸¦ ÅëÇØ ´ÙÀ½°ú °°Àº °á°ú¸¦ ¾òÀ» ¼ö ÀÖ¾ú´Ù.
1. ÇÇÅæÄ¡µåÀÇ ÃÖ¼Ò¾ïÁ¦³óµµ(minimum inhibitory concentration; MIC)´Â S. mutans GS5´Â 0.5%, S. sobrinus 6715´Â 1%, A. actinomycetemcomitans Y4´Â 0.2%·Î ÃøÁ¤µÇ¾ú´Ù.
2. ÇÇÅæÄ¡µåÀÇ ÃÖ¼Ò»ì±Õ³óµµ(minimum bactericidal concentration; MBC)´Â S. mutans GS5´Â 0.5%, S. sobrinus 6715´Â 2%, A. actinomycetemcomitans Y4´Â 0.2%·Î ÃøÁ¤µÇ¾ú´Ù.
3. ÇÇÅæÄ¡µå¿¡ ³ëÃâµÈ ½ÇÇè±ÕÁÖ¿¡ ´ëÇÑ Ç×»ýÁ¦ °¨¼ö¼º ½ÇÇè¿¡¼­ ÇÇÅæÄ¡µå¸¦ Àû¿ëÇßÀ» °æ¿ì, S. mutans GS5°ú S. sobrinus 6715´Â ampicillin¿¡ ´ëÇÑ °¨¼ö¼ºÀÌ À¯ÀǼº ÀÖ°Ô Áõ°¡ÇÏ¿´´Ù. S. sobrinus 6715ÀÇ °æ¿ì´Â penicillin°ú amoxicillin¿¡ ´ëÇÑ °¨¼ö¼ºµµ ÇÇÅæÄ¡µå¿¡ ÀÇÇØ À¯ÀǼº ÀÖ°Ô Áõ°¡ÇÏ¿´´Ù. ¹Ý¸é, A. actinomycetemcomitans Y4´Â amoxicillin°ú cefotaxime¿¡ ´ëÇÑ °¨¼ö¼ºÀÌ ´Ù¼Ò Áõ°¡ÇÏ¿´À¸³ª À¯ÀǼºÀº ¾ø¾ú´Ù.
ÀÌ»óÀÇ °á°ú·Î, Æí¹é ÇÇÅæÄ¡µå Á¤À¯´Â Ä¡¾Æ¿ì½ÄÁõ ¿øÀαÕÀÎ Streptococcus mutans¿Í Streptococcus sobrinus, ±ÞÁø¼º Ä¡ÁÖ¿° ¿øÀαÕÀÎ Actinobacillus actinomycetemcomitans¿¡ ´ëÇÑ »ì±ÕÈ¿°ú°¡ ÀÖÀ» »Ó¸¸ ¾Æ´Ï¶ó ÀÌµé ±ÕÀÇ Ç×»ýÁ¦ °¨¼ö¼ºÀ» ³ôÀÌ´Â °ÍÀ¸·Î ÆǴܵȴÙ. µû¶ó¼­, ÇÇÅæÄ¡µå´Â Ä¡¾Æ¿ì½ÄÁõ°ú Ä¡ÁÖÁúȯÀ» Æ÷ÇÔÇÑ ±¸°­Áúȯ¿¡ ´ëÇØ ¿¹¹æÀûÀÌ°í Ä¡·áÀûÀÎ È¿°ú¸¦ ¾òÀ» °¡´É¼ºÀÌ ÀÖ´Â °ÍÀ¸·Î »ý°¢µÈ´Ù.

Plant extract has attracted considerable interest in oral disease therapy. The present study was performed to observe the antibacterial effect on cariogenic Streptococcus mutans GS5 and Streptococcus sobrinus 6715, and periodontopathic Actinobacillus actinomycetemcomitans Y4 of phytoncide from Chamaecyparis obtusa Sieb. et Zucc employing the measurement of optical density, viable cell counts, and antibiotic sensitivity. The results were as follows:
1. Minimum inhibitory concentration of the phytoncide for S. mutans, S. sobrinus, and A. actinomycetemcomitans was observed to be 0.5%, 1%, and 0.2%, respectively.
2. Minimum bactericidal concentration of the phytoncide for S. mutans, S. sobrinus, and A. actinomycetemcomitans was determined to be 0.5%, 2%, and 0.2%, respectively.
3. The bacteria exposed to the phytoncide become more sensitive to antibiotics. The phytoncide enhanced significantly antibacterial activity of ampicillin against S. mutans and S. sobrinus. It also increased significantly the activity of penicillin and amoxicillin against S. sobrinus. In contrast, the phytoncide augmented the activity of amoxicillin and cefotaxime against A. actinomycetemcomitans but the increase was not statistically significant.
The overall results indicate that phytoncide from Chamaecyparis obtusa Sieb. et Zucc used for this study has a strong antibacterial activity against cariogenic and periodontopathic bacteria and that it also has permeabilizing effect on certain antibiotics against these bacteria. Therefore, the phytoncide may be used as a candidate for prevention and therapeutic agent against oral infectious disease including dental caries and periodontal disease.

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Phytoncide;Antibacterial effect;Dental caries;Periodontal disease;Oral pathogenic bacteria

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