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The Effect of Fermented Codonopsis lanceolata on the Memory Impairment of Mice

발효더덕 추출물이 흰쥐의 인지능 회복에 미치는 효과

  • Park, Sung-Jin (Dept. of Tourism Food Service Cuisine, Hallym College) ;
  • Park, Dong-Sik (Functional Food & Nutrition Division, Rural Development Administration) ;
  • Kim, Seung-Seop (Dept. of Biomaterials Engineering, College of Bioscience and Biotechnology, Kangwon National University) ;
  • He, Xinlong (Dept. of Biomaterials Engineering, College of Bioscience and Biotechnology, Kangwon National University) ;
  • Ahn, Ju-Hee (Dept. of Biomaterials Engineering, College of Bioscience and Biotechnology, Kangwon National University) ;
  • Yoon, Won-Byung (Dept. of Food Science and Biotechnology, School of Biotechnology, Kangwon National University) ;
  • Lee, Hyeon-Yong (Dept. of Biomaterials Engineering, College of Bioscience and Biotechnology, Kangwon National University)
  • 박성진 (한림성심대학 관광외식조리과) ;
  • 박동식 (농촌진흥청 기능성식품과) ;
  • 김승섭 (강원대학교 BT특성화학부대학 생물소재공학과) ;
  • 허신용 (강원대학교 BT특성화학부대학 생물소재공학과) ;
  • 안주희 (강원대학교 BT특성화학부대학 생물소재공학과) ;
  • 윤원병 (강원대학교 BT특성화학부대학 식품생명공학과) ;
  • 이현용 (강원대학교 BT특성화학부대학 생물소재공학과)
  • Received : 2010.07.20
  • Accepted : 2010.08.31
  • Published : 2010.11.30

Abstract

In the present study, we assessed whether the extracts of Codonopsis lanceolata and fermented C. lanceolata posses the cognition-enhancing effect in rats with impaired learning and memory by scopolamine treatment (1 mg/kg, i.p.), an antagonist of muscarinic acetylcholine (ACh) receptor. The fermented C. lanceolata extract (333, 667 mg/kg) significantly reversed the scopolamine-induced cognitive impairments in the passive avoidance test (p<0.05). Moreover, fermented C. lanceolata extract (333 mg/kg) also improved escape latencies in training trials of Morris water maze test (p<0.05). The water extract of fermented C. lanceolata showed significant anti-amnestic and cognitive-enhancing activities related to the memory processes, and these activities were parallel to treatment duration and dependent of the learning models.

본 실험에서는 발효더덕을 제조한 후 발효더덕의 건망증에 대한 효과를 scoplamnine으로 유도된 건망증 모델을 이용하여 수동회피시험(passive avoidance test)과 Morris 수중미로시험(Morris water maze test)을 이용하여 행동학적 변화를 통하여 발효더덕의 기억력 개선 능력 여부를 확인하고자 하였다. 더덕 및 발효더덕 추출물 167, 333, 667 mg/kg을 경구투여 한 결과 발효더덕 추출물의 333 mg/kg 및 667 mg/kg 그룹에서 각각 $120.9{\pm}15.3$초 및 $140.7{\pm}18.0$초에 대하여 통계적으로 유의성 있게 latency time이 증가하였으며, 특히 333 mg/kg의 용량에서 대조군의 85% 수준으로 회복하는 것을 확인하였다. 또한, Morris water maze test를 실시에서도 더덕 및 발효더덕 추출물 처리군에서는 scopolamine에 의한 기억 손상이 개선되어 대조군의 escape latency 수준으로 회복되었다. 이상의 결과 발효더덕 추출물의 경구섭취는 scopolamine으로 유도된 기억력 감퇴 동물모델에서 기억력 개선 및 인지능력을 향상시킬 수 있다고 생각되며, 효과의 기전 및 효능성분을 확인 연구가 진행되어야 할 것으로 생각된다.

Keywords

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