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ELISA¹ýÀ¸·Î ÃøÁ¤ÇÑ ¼Ò¾Æ Ç÷Áß LEPTIN Ä¡¿¡ °üÇÑ ¿¬±¸ A Study on Serum Leptin Values by Elisa Method in Children

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Á¤¿ëÇå ( Chung Young-Hun ) 
Ãæ³²´ëÇб³ ÀÇ°ú´ëÇÐ ¼Ò¾Æ°úÇб³½Ç

Abstract

¸ñ Àû: LeptinÀº Áö¹æ¼¼Æ÷¿¡¼­ ºÐºñµÇ¾î hypothalamus¿¡
ÀÛ¿ëÇÔÀ¸·Î½á ½Ä¿å°ú ¿¡³ÊÁö¼Ò¸ð¸¦ Á¶
ÀýÇÑ´Ù°í ¾Ë·ÁÁ³´Ù. ±×·¯³ª ºñ¸¸¾Æ¿¡¼­´Â Leptin
¼ö¿ëüÀÇ ÀúÇ×¼º Áõ°¡¿¡ ÀÇÇØ ºñ¸¸ÀÌ Áö¼ÓµÈ´Ù°í
º¸°íµÈ´Ù. ÃÖ±Ùµé¾î ±¹³»¿¡¼­µµ ºñ¸¸¾Æ¿¡¼­ÀÇ Leptin
³óµµ¿¡ ´ëÇØ ¸¹Àº ¿¬±¸°¡ ÀÌ·ç¾îÁö°í ÀÖÀ¸³ª
±× °á°ú°¡ ÀÏÄ¡ÇÏÁö ¾Ê°í ´ëºÎºÐÀÇ ¿¬±¸´Â Leptin
RIA kit¸¦ ÀÌ¿ëÇÏ¿© ÀÌ·ç¾îÁø ¹Ù ÀúÀÚµéÀº human
leptin ELISA kit¸¦ ÀÌ¿ëÇÏ¿© Ç÷Áß leptin ³óµµ¸¦ Ãø
Á¤ÇÏ¿© ELISA¹ýÀÇ À¯¿ë¼ºÀ» ±Ô¸íÇÏ°í ºñ¸¸¾Æ¿Í
Á¤»ó¾Æ ¹× ¿¬·É°ú ¼ºº°¿¡ µû¸¥ Â÷À̸¦ ºñ±³ÇØ º¸
°íÀÚ º» ¿¬±¸¸¦ ½Ç½ÃÇÏ¿´´Ù.

¹æ ¹ý: 1999³â 2¿ù 1ÀϺÎÅÍ 1999³â 6¿ù 30ÀϱîÁö
Ãæ³²´ëÇб³º´¿ø¿¡ ³»¿øÇÑ ¾Æµ¿À» ´ë»óÀ¸·Î ÃÑ 67
¸í(³²¾Æ 41¸í, ¿©¾Æ 26¸í)ÀÇ ¼Ò¾Æ¸¦ ¹«ÀÛÀ§·Î ÃßÃâ
ÇÏ¿´´Ù. 1999³âµµ ´ëÇѼҾưúÇÐȸÀÇ ½ÅÀ庰 Ç¥ÁØ
üÁßÄ¡¸¦ ÀÌ¿ëÇÏ¿© °¢ ¿¬·Éº°, ¼ºº° ½ÅÀå´ëºñ Ç¥ÁØ
üÁßÀÇ 120% ÀÌ»ó µÇ´Â ȯ¾Æ¸¦ ºñ¸¸À¸·Î Á¤ÀÇÇÏ
¿© ºñ¸¸¾Æµ¿ 19¸í(³²¾Æ 12¸í, ¿©¾Æ 7¸í)°ú Á¤»ó¾Æ
µ¿ 48¸í(³²¾Æ 29¸í, ¿©¾Æ 19¸í)À¸·Î ºÐ·ùÇÏ¿´´Ù. 67
¸íÀÇ ´ë»ó¾Æµ¿¿¡ ´ëÇØ ½ÅÀå, üÁß, ºñ¸¸µµ, üÁú·®
Áö¼ö¸¦ Á¶»çÇÏ°í ELISA¹ýÀ» ÀÌ¿ëÇÏ¿© Leptin ³óµµ
¸¦ ÃøÁ¤ÇÏ¿´´Ù. ÀÌ°ÍÀ» ºñ¸¸±º°ú Á¤»ó±º, üÁú·®Áö
¼öº°, ¼ºº°, ¿¬·Éº°·Î ³ª´©¾î ºñ±³ºÐ¼® ÇÏ¿´´Ù.

°á °ú:
1) Á¤»ó¾ÆÀÇ Æò±Õ Leptin Ä¡´Â 7.69¡¾8.83 ng/mlÀÌ
¾ú´Ù.
2) ºñ¸¸¾Æ¿¡¼­ Æò±Õ Leptin Ä¡´Â 36.34¡¾18.57 ng/
mlÀ̾ú´Ù.
3) üÁú·® Áö¼ö°¡ 20 ÀÌ»óÀÎ ±º¿¡¼­ 20 ¹Ì¸¸ÀÎ
±ºº¸´Ù Ç÷Áß leptin Ä¡°¡ À¯ÀÇÇÏ°Ô ³ô¾Ò´Ù(p£¼0.01).
4) 10¼¼ ÀÌ»óÀÎ ±º¿¡¼­ 10¼¼ ¹Ì¸¸ÀÎ ±ºº¸´Ù À¯ÀÇ
ÇÏ°Ô ³ô¾Ò´Ù(p£¼0.01).
5) ³²³à°£ÀÇ Ç÷Áß leptin Ä¡´Â À¯ÀÇÇÑ Â÷ÀÌ°¡ ¾ø
¾ú´Ù(p£¾0.05).

°á ·Ð: ELISA¹ýÀ» ÀÌ¿ëÇÑ Ç÷Áß leptin Ä¡´Â RIA
¹ýÀ» ÀÌ¿ëÇÑ Ç÷Áß leptin Ä¡¿Í °°ÀÌ ºñ¸¸ÇÑ ±º¿¡¼­
³ô°Ô ³ªÅ¸³µÀ¸¸ç, ÀÌ¿¡ °ü·ÃµÈ ÀÎÀڷδ ºñ¸¸µµ,
üÁú·® Áö¼ö ¹× ¿¬·É µîÀÌ ÀÖ¾ú´Ù. Ư¼ö ½Ã¼³ÀÌ ÇÊ
¿äÇÑ RIA¹ýº¸´Ù ÀÏ¹Ý °Ë»ç½Ç¿¡¼­ ¿ëÀÌÇÏ°Ô ÃøÁ¤
ÇÒ ¼ö ÀÖ´Â ELISA¹ýÀÌ ³Î¸® È°¿ëµÉ ¼ö ÀÖÀ» °ÍÀ¸
·Î »ç·áµÈ´Ù.

Purpose: Leptin is an adipocyte-derived blood-borne satiety factor that acts on its cognate leptin receptor in the hypothalamus, thereby regulating food intake and energy expenditure. We measured the leptin concentrations in serum of normal and obese children with human leptin ELISA kit, unlike previous study with leptin RIA kit and investigated the relationship between leptin concentrations and body mass index, gender, and age.

Methods: We measured serum concentrations of leptin in 67 children who were visited to the Department of Pediatrics, Chungnam National University Hospital during the period of 5 months from February, 1999 to June, 1999. Height, weight, obesity index, and body mass index were measured in 67 subjects. Leptin values in serum were measured by sandwich ELISA method. Data analysis was done according to the obesity, body mass index, gender and age.

Results: The mean concentration of leptin was 7.69?8.83 ng/ml in normal children group and 36.34?18.57 ng/ml in obese group. Serum leptin concentrations were significant correlation with the body mass index (p£¼0.01). Serum leptin concentration was significant higher in the group of over 10 years of age (p£¼0.01). Leptin levels showed no significant difference by gender.

Conclusion: Serum leptin levels were significantly higher in obesity group than in control one, and they were correlated with body mass index and age. Measurements of leptin value by sandwich ELISA method are very useful and easily applicable to determine obesity.

Å°¿öµå

Leptin;ELISA method;Obesity

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