The Role of BF-7 on Enhancement of Memory and Cognitive Funtion

BF-7의 기억력 및 인지기능 향상효과

Kim, Dae-Kyung;Lee, Jun-Young;Sung, Jung-Jun;Kim, Kui-Tae;Kim, Yong-Sik;Kwon, Oh-Sang;Yun, Young-Chul;Lee, Tae-Jin;Kang, Yong-Koo;Chung, Yoon-Hee;Kim, Sung-Su;Kim, Kyung-Yong;Lee, Won-Bok
김대경;이준영;성정준;김의태;김용식;권오상;윤영철;이태진;강용구;정윤희;김성수;김경용;이원복

  • Published : 20041200

Abstract

Various factors such as senescence, stress, neurodegenerative diseases including Alzheimer’És disease (AD) contribute to the impairments of organs, especially brain. Also, they should be negative factors on normal brain function, like as memory and cognition. In this study, the neuroprotective role of BF-7, extracted from Bombyx mori, was examined agaist scopolamine-induced neurotoxicity in SK-N-SH cells. In order to know if the BF-7 has positive role on the cognition and memory, we examined using SD rat model and human. Scopolamine-induced memory impairments were observed, as measured by the passive avoidance and water maze tests, but treatment with BF-7 significantly improved memory and cognitive function. Moreover, the memory index and memory preservation of clinical experiments using MMSE-K tests were significantly improved memory and cognitive function. This results strongly represent that the BF-7 play effectively positive role in the improvement of brain function including learning and memory. Taken together, our results suggested that the BF-7 should be useful for developing strategies protecting nervous system and improving brain function.

기억력과 학습력의 개선은 두뇌의 기능적 향상 뿐 아니라, 신경의 보호차원에서도 그 의학적 가치가 크다. 스트레스에 의한 뇌기능 저하등과 같은 다양한 원인으로 인하여 기억력 감퇴가 일어날 수 있다. 또한 최근 기억력 감퇴 손상 억제 기전의 연구는 현저한 기능감소를 보이고 있는 콜린성 신경계의 기능을 보충해 주는데 초점이 맞추어져 있다. 이에 근거하여 본 연구에서는 가잠(Bombyx mori)으로부터 추출한 BF-7이 실제로 생체 내에서 감퇴된 기억력을 개선시켜줄 수 있는지를 검색하기 위하여 무스카리닉(muscarinic) 수용체의 길항제인 스코폴라민(scopolamine)을 투여하여 만든 기억력감퇴 세포와 동물모델을 사용하여 실험을 수행하였다. BF-7을 전처치하고 스코폴라민을 투여하였을 때, 세포생존율, passive avoidance test와 water maze test를 실시한 결과, BF-7이 매우 효과적으로 기억력을 개선시켜주고 있음이 나타났다. 이와 같은 결과는 이물질이 실제로 BBB (blood brain barrier)를 통과하여 뇌에서 시냅스의 콜린성 신경계의 기능을 높여주었으며, 두뇌기능 개선효과에 중요한 역할을 한다는 것을 시사한다. 또한 인지기능장애 정도를 평가할 수 있는 MMSE-K 임상검사법을 시행한 결과, BF-7을 섭취한 후, 획기적인 인지기능의 개선과 향상효과가 나타났다. 이는 BF-7이 인지기능을 개선해 줄 수 있는 안전하고 효과적인 후보물질로 개발할 만한 충분한 가치를 제공하여 주는 것이라고 사료된다.

Keywords

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