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Intestinal Microflora and Atopy Development in Infants during the First Nine Months

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±èÀç¼®(Kim Jae-Seok) - ÇѸ²´ëÇб³ Àǰú´ëÇÐ Áø´Ü°Ë»çÀÇÇб³½Ç
¼ºÅÂÁ¤(Sung Tae-Jung) - ÇѸ²´ëÇб³ Àǰú´ëÇÐ ¼Ò¾Æ°úÇб³½Ç
¹ÚÈ«±Ô(Park Hong-Kyu) - ÇѸ²´ëÇб³ Àǰú´ëÇÐ ¼Ò¾Æ°úÇб³½Ç
¹ÚÁö¿µ(Park Ji-Young) - ÇѸ²´ëÇб³ Àǰú´ëÇÐ Áø´Ü°Ë»çÀÇÇб³½Ç
Á¶ÇöÂù(Cho Hyoun-Chan) - ÇѸ²´ëÇб³ Àǰú´ëÇÐ Áø´Ü°Ë»çÀÇÇб³½Ç
ȲÀÏÅÂ(Hwang Il-Tae) - ÇѸ²´ëÇб³ Àǰú´ëÇÐ ¼Ò¾Æ°úÇб³½Ç
ÀÌÇý¶õ(Lee Hae-Ran) - ÇѸ²´ëÇб³ Àǰú´ëÇÐ ¼Ò¾Æ°úÇб³½Ç

Abstract

¹è°æ: Àå³» ¼¼±ÕÃÑÀº ¿¬·É, ½ÄÀÌ, ȯ°æ¿¡ µû¶ó ´Ù¾çÇÑ º¯È­¸¦ º¸ÀδÙ. ½Å»ý¾ÆÀÇ Ãâ»ý ÈÄ Àå³» ¼¼±ÕÀÇ º¯È­¿Í ¾ÆÅäÇÇ ¹ß»ýÀÇ ¿¬°ü¼º¿¡ ´ëÇØ ¿©·¯ ³í¶õÀÌ ÀÖ´Ù. ÀÌ ¿¬±¸´Â Ãâ»ý ÈÄ 9°³¿ù °£ Àå³» ¼¼±ÕÀÇ º¯È­¿Í ¾ÆÅäÇÇ ¹ß»ýÀÇ ¿¬°ü¼º¿¡ ´ëÇØ ¾Ë¾Æº¸°íÀÚ ÇÏ¿´´Ù.

¹æ¹ý: Á¤»ó ½Å»ý¾ÆÀÇ ºÐº¯À» Ãâ»ýÈÄ 1ÀÏ, 3ÀÏ, 7ÀÏ, 1°³¿ù, 2°³¿ù, 4°³¿ù, 6°³¿ù, 9°³¿ù¿¡ ¼öÁýÇÏ¿© Escherichia coli, Lactobacillus, Bifidobacterium, Staphylococcus aureus¸¦ ¼±ÅùèÁö¸¦ »ç¿ëÇÏ¿© ¹è¾çÇÏ¿´´Ù. ¿µ¾ÆÀÇ ¾ÆÅäÇÇ ¿©ºÎ¸¦ ¾Ë±â À§ÇØ
ÀÓ»ó ¼Ò°ß°ú ÇÔ²² Ç÷û ÃÑ IgE, ÇǺιÝÀÀ°Ë»ç¸¦ ½ÃÇàÇÏ¿´´Ù.

°á°ú: 12°³¿ù ÈÄ 48¸íÀÇ ¿µ¾Æ¿¡¼­ ºñ¾ÆÅäÇÇ ±ºÀº 36¸í(75.0%), ¾ÆÅäÇÇ ±ºÀº 12¸í(25.0%)À̾ú´Ù. ºñ¾ÆÅäÇÇ ±º°ú ¾ÆÅäÇDZºÀÌ °¡Àå Å« Â÷À̸¦ º¸ÀÎ °ÍÀº 3Àϰ·Î E. coli Á¤Âø·ü 52.4%, 12.5%¿Í S. aureus Á¤Âø·ü 38.1%, 0%¿´À¸³ª Åë°èÀûÀÎ Â÷ÀÌ´Â ¾ø¾ú´Ù(P=0.093, P=0.066). E. coli Á¤Âø·üÀÌ 50%¿¡ µµ´ÞÇÑ ½Ã±â´Â Á¤»ó±º¿¡¼­´Â 3ÀÏ ÀÌÈÄ¿´À¸³ª ¾ÆÅäÇÇ ±ºÀº 1°³¿ù ÀÌÈÄ¿´´Ù.

°á·Ð: ¿µ¾ÆÀÇ ¾ÆÅäÇÇ ±º°ú ºñ¾ÆÅäÇÇ ±º¿¡¼­ Àå³» ¼¼±Õ Á¤Âø·üÀÇ Åë°èÀûÀÎ Â÷ÀÌ´Â °üÂûµÇÁö ¾Ê¾Ò´Ù. ±×·¯³ª, ºñ¾ÆÅäÇÇ
±º¿¡¼­´Â Ãâ»ý ÃʱâÀÎ 1ÁÖÀÏ À̳»¿¡ E. coli¿Í S. aureusÀÇ Á¤ÂøÀÌ ºü¸£°Ô ÀϾ´Ù. ¾ÆÅäÇÇ¿Í Ãâ»ý ÃʱâÀÇ Àå³»¼¼±ÕÀÇ
Á¤Âø ¹× ´Ù¾ç¼º°úÀÇ ¿¬°ü¿¡ ´ëÇØ¼­´Â Ãß°¡ ¿¬±¸°¡ ÇÊ¿äÇÒ °ÍÀ¸·Î »ý°¢ÇÑ´Ù.
Background: The intestinal microflora varies according to the factors such as age, diet and environment. It is debated whether the changes of microbiota after birth are associated with atopic disease. The purpose of this study was to investigate colonization rates of some intestinal microflora during the initial 9 months after birth, and their association with the development of atopy.

Methods: Stool specimens were collected at 1, 3, 7 days and at 1, 2, 4, 6, 9 months after birth, and Escherichia coli, Lactobacillus, Bifidobacterium, Staphylococcus aureus were cultured with selective media. Diagnosis for atopy was accomplished via clinical history of atopy, serum total IgE, and skin prick test.

Results: By 12 months of age, among 48 infants, 36 (75.0%) were non-atopic while 12 (25.0%) had developed atopy. Although not statistically significant, the intestinal microflora of infants with atopy vs. non-atopy was characterized by being less often colonized with E. coli (12.5% vs. 52.4%; P=0.093) and S. aureus (0% vs. 38.1%; P=0.066) at three days after birth. Colonization rates of E. coli reached 50% after 3 days of birth in non-atopy group whereas this rate was not achieved until after 1 month in the atopy group.

Conclusion: The intestinal colonization rates of bacteria in this study were not statistically different between atopy and non-atopy groups. Rapid colonization of E. coli and S. aureus was observed within 1 week after birth in the non-atopy group. The exact association between atopy and the bacterial colonization and/or diversity in the early days after birth has yet to be determined.

Ű¿öµå

Atopy, Colonization, Infant, Intestinal
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DOI
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ICD 03
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