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청국장 분말 첨가식이가 당뇨 쥐의 혈당과 염증조절에 미치는 영향

The Effects of Chungkukjang Powder Supplements on the Regulation of Blood Glucose and Inflammation in Diabetic Rats

  • 양경미 (대구한의대학교 식품영양학전공)
  • Yang, Kyung-Mi (Major in Food and Nutrition Science, Daegu Haany University)
  • 투고 : 2014.09.15
  • 심사 : 2015.03.10
  • 발행 : 2015.04.30

초록

본 연구는 당뇨병의 예방과 관리를 위한 청국장의 가치를 평가하고자 대두, 약콩, 및 흑미, 흑임자, 다시마와 같은 블랙푸드를 첨가한 약콩청국장 분말의 섭취가 STZ 유도 당뇨 쥐의 혈당 및 염증 관련 인자에 미치는 영향을 분석하였다. 그 결과 당뇨로 증가된 혈당은 약콩청국장 분말 45.5% 및 블랙푸드를 첨가하여 만든 약콩청국장 분말 50.0%을 섭취시킨 DY와 DYB군에서 저하되는 것으로 나타났다. 또한 정상군에 비해서 당뇨군에서 인슐린 농도와 분비능은 낮은 반면에, 인슐린 저항성은 높았다. 그러나 약콩청국장 분말 45.5%과 블랙푸드를 첨가한 약콩청국장 분말 50.0%의 공급으로 인슐린 농도와 분비능을 다소 개선시킬 수 있는 것으로 나타났다. 또한 유리지방산 농도는 C군에 비해서 DC군에서 높았으며, 당뇨 유도로 높아진 유리지방산은 대두청국장 분말 55.0%의 공급으로 조절되는 것으로 나타났다. 염증 지표로 leptin의 농도는 C군에 비해서 인슐린 분비량이 낮은 당뇨를 유도한 모든 군에서 leptin의 농도가 낮았으며 청국장 분말의 공급 유무나 형태가 당뇨 유도군의 leptin 분비에는 아무런 영향을 미치지 못하였다. 또 다른 지표로 adiponectin의 농도는 C군에 비해 당뇨 유도군들에서 낮았으며, 청국장 분말의 공급 유무 및 형태에 따른 효과는 없는 것으로 나타났다. 그리고 혈당 농도와 관련된 인자와의 상관관계를 분석한 결과 HOME-IR과 adiponectin 농도와는 양의 상관관계를, 그리고 인슐린 농도는 HOME-${\beta}$ 및 leptin 농도와 음의 상관관계를 보였다. 또한 인슐린 농도는 leptin 농도와 양의 상관관계를, 그리고 adiponectin 농도와는 음의 상관관계인 것으로 나타났으며 leptin과 adiponectin 농도는 음의 상관관계를 보였다. 이상의 결과에서 당뇨 유도로 혈당과 인슐린 저항성은 높고 인슐린 분비능, leptin 및 adiponectin 농도는 낮았다, 그러나 혈당과 인슐린저항성 및 분비능은 44.5%의 약콩이나 50.0%의 블랙푸드를 첨가한 약콩청국장 분말 식이의 공급으로 다소 조절되는 것으로 나타났다. 따라서 약콩 및 블랙푸드를 첨가한 약콩청국장이 향후 당뇨 환자의 관리와 합병증 예방을 위한 건강 기능성 식품으로서 가치가 있을 것으로 사료된다.

In this study, the effect of Cheonggukjang powder were investigated on the regulation of blood glucose and inflammatory in STZ-induced diabetic rats. The experimental diet used this study were three kinds of Cheonggukjang, which were soybean Cheonggukjang, Yakkong Cheonggukjang and black foods such as black rice, black sesame seeds, and sea tangle added Yakkong Cheonggukjang powder. The experimental animals were divided into 5 groups and fed experimental diets for 7 weeks; non-diabetes with normal diet group (C), diabetes with normal diet (DC), diabetes with soybean Cheonggukjang (DS), diabetes with Yakkong Cheonggukjang (DY), and diabetes with Yakkong black foods added Cheonggukjang (DYB). Blood glucose and insulin resistance of STZ-induced diabetic groups were were significantly higher than C group. But insulin levels and insulin secertory of STZ-induced diabetic groups were significantly lower than C group. However, supplementation of Yakkong or black foods added Yakkong Cheonggukjang were proven to regulation them. In diabetic group, free fatty acid level was significantly increased than C group, but this contents was significantly decreased supplementation of soybean Cheonggukjang. Leptin and adiponectin levels were significantly decreased in STZ-induced diabetic groups.

키워드

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