Aβ42로 유도된 알츠하이머 마우스 모델에서 이중 가공 인삼열매 추출물의 학습 및 기억 손실 개선 효과
This study aimed to determine whether double-processed ginseng berry extract (PGBC) could improve learning and memory in an Aâ42-induced Alzheimer's mouse model. Passive avoidance test (PAT) and Morris water-maze test (MWMT) were performed after mice were treated with PGBC, followed by acetylch...
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| Published in | Han'guk Sikp'um Kwahakhoe Chi = Korean Journal of Food Science and Technology Vol. 51; no. 2; pp. 160 - 168 |
|---|---|
| Main Authors | , , , , , , , , , |
| Format | Journal Article |
| Language | Korean |
| Published |
Seoul
한국식품과학회
01.04.2019
Korean Society of Food Science & Technology |
| Subjects | |
| Online Access | Get full text |
| ISSN | 0367-6293 2383-9635 |
| DOI | 10.9721/KJFST.2019.51.2.160 |
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| Abstract | This study aimed to determine whether double-processed ginseng berry extract (PGBC) could improve learning and memory in an Aâ42-induced Alzheimer's mouse model. Passive avoidance test (PAT) and Morris water-maze test (MWMT) were performed after mice were treated with PGBC, followed by acetylcholine (ACh) measurement and glial fibrillary acidic protein (GFAP) detection for brain damage. Furthermore, acetylcholinesterase (AChE) activity and choline acetyltransferase (ChAT) expression were analyzed using Ellman's and qPCR assays, respectively. Results demonstrated that PGBC contained a high amount of ginsenosides (Re, Rd, and Rg3), which are responsible for the clearance of Aâ42. They also helped to significantly improve PAT and MWMT performance in the Aâ42-induced Alzheimer's mouse model when compared to the normal group. Interestingly, ACh and ChAT were remarkably upregulated and AChE activities were significantly inhibited, suggesting PGBC to be a palliative adjuvant for treating Alzheimer's disease. Altogether, PGBC was found to play a positive role in improving cognitive abilities. Thus, it could be a new alternative solution for alleviating Alzheimer's disease symptoms. |
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| AbstractList | This study aimed to determine whether double-processed ginseng berry extract (PGBC) could improve learning and memory in an Aâ42-induced Alzheimer’s mouse model. Passive avoidance test (PAT) and Morris water-maze test (MWMT) were performed after mice were treated with PGBC, followed by acetylcholine (ACh) measurement and glial fibrillary acidic protein (GFAP) detection for brain damage. Furthermore, acetylcholinesterase (AChE) activity and choline acetyltransferase (ChAT) expression were analyzed using Ellman’s and qPCR assays, respectively. Results demonstrated that PGBC contained a high amount of ginsenosides (Re, Rd, and Rg3), which are responsible for the clearance of Aâ42.
They also helped to significantly improve PAT and MWMT performance in the Aâ42-induced Alzheimer’s mouse model when compared to the normal group. Interestingly, ACh and ChAT were remarkably upregulated and AChE activities were significantly inhibited, suggesting PGBC to be a palliative adjuvant for treating Alzheimer’s disease. Altogether, PGBC was found to play a positive role in improving cognitive abilities. Thus, it could be a new alternative solution for alleviating Alzheimer’s disease symptoms. KCI Citation Count: 0 This study aimed to determine whether double-processed ginseng berry extract (PGBC) could improve learning and memory in an $A\hat{a}42$-induced Alzheimer's mouse model. Passive avoidance test (PAT) and Morris water-maze test (MWMT) were performed after mice were treated with PGBC, followed by acetylcholine (ACh) measurement and glial fibrillary acidic protein (GFAP) detection for brain damage. Furthermore, acetylcholinesterase (AChE) activity and choline acetyltransferase (ChAT) expression were analyzed using Ellman's and qPCR assays, respectively. Results demonstrated that PGBC contained a high amount of ginsenosides (Re, Rd, and Rg3), which are responsible for the clearance of $A{\hat{a}} 42$. They also helped to significantly improve PAT and MWMT performance in the $A{\hat{a}} 42-induced$ Alzheimer's mouse model when compared to the normal group. Interestingly, ACh and ChAT were remarkably upregulated and AChE activities were significantly inhibited, suggesting PGBC to be a palliative adjuvant for treating Alzheimer's disease. Altogether, PGBC was found to play a positive role in improving cognitive abilities. Thus, it could be a new alternative solution for alleviating Alzheimer's disease symptoms. AD는 뇌의 신경세포 사멸뿐만 아니라 학습 및 기억능 소실을 초래하는 퇴행성 뇌 질환이며, 기억과 관련된 주요 뇌 구역인 해마(hippocampus)는 콜린성 조절(cholinergic modulation)에 의해 영향을 받는다(Konishi 등, 2015). AD 병인에 대한 다양한 해석과 설명이 있으나 크게는 amyloid cascade hypothesis과 함께 cholinergic hypothesis가 주류를 이루고 있다. 몇몇의 연구에서 ChAT 합성, ACh 분비, nicotin 및 muscarinic 수용체 감소가 AD 뇌의 대뇌피질과 해마에서 관찰되어(Tata 등, 2014) 퇴행성 뇌질환에서의 중요성이 제시되었고, 이를 배경으로 한 acetylcholinesterase inhibitors (AChEI)가 AD 증상 완화의 목적으로 미국 FDA로부터 승인되어 시판되고 있다. 본 연구에서는 인삼의 활성 성분인 진세노사이드가 다량 함유된 PGBC가 $A{\beta}42$로 유도된 치매 모델에서 뇌세포 보호, ACh 분비 증가, 학습력/기억력 증가, ChAT 발현 증가를 확인하여 인삼열매 추출물의 치매 적용 여부를 확인하고자 하였다. 결과에서 언급한 바와 같이 PGBC는 익기 직전의 4년근 인삼 열매에 추출 및 발효 단계를 추가하여 확보된 물질로서, $A{\beta}42$ 섭취, 제거 및 ACh 분비 촉진 활성이 있는 Re, Rd, Rg3 함량이 증가되어(Kim 등, 2014; Jang 등, 2015), PGBC 자체로서 치매 인자에 대한 조절 효능이 예측되었다. 특히, 7증 7포 및 발효과정을 거친 이중가공 인삼 열매 추출물이 비 발효 증포 추출물에 비해 Rg3가 현저히 증가하는 사전 연구결과와 Rg3가 $A{\beta}42$ 제거 활성을 가지는 것으로 확인된 결과를 종합할 때 PGBC 투여가 AD 증상 완화의 조절자 역할을 할 것으로 생각된다(Kim 등, 2013; Jang 등 2015). 본 연구에 따르면, 마우스 치매 모델에 PGBC 처리 시 PAT 및 Morris water-maze test를 통해 대조군 대비 유의한 수준의 인지능력 개선, ACh 합성을 유도하는 ChAT 유전자 발현 증가, ACh 분비량 증가 등이 확인되어 전체적인 인지능 개선에 극적인 영향을 준 것으로 판단된다. 특히 $A{\beta}42$를 뇌 실로 주입(intracranial injection) 하여 나타나는 뇌세포 손상이 PGBC 투여를 통해 보호된 것으로 사료되었으며, 이는 주요 뇌세포 중 하나인 성상세포에서 관찰되는 GFAP 분석을 통해 확인되었다. 뇌 균질액을 이용한 AChE 활성 연구에서도 PGBC가 AChE를 현저하게 저해하는 것으로 확인되어, AD 환자에게 처방이 가능한 2대 의약품 군중 하나인 시냅스 내 신경전달물질 ACh bioavailability 증가 목적의 처방 보조요법 적용이 기대된다(${\check{C}}olovi{\acute{c}}$ 등, 2013). 결론적으로, 본 연구에 사용된 PGBC는 학습 및 기억력을 개선하는 활성물질을 포함하고 있어 1차적인 퇴행성 뇌질환 보조재로서 직간접적인 대증요법 역할과 2차적으로는 뇌 세포 보호를 통한 질병 악화 지연 소재로 개발이 기대되며, 보다 심도 있는 기전연구를 통해 천연물 신소재 개발도 가능할 것으로 사료된다. This study aimed to determine whether double-processed ginseng berry extract (PGBC) could improve learning and memory in an Aâ42-induced Alzheimer's mouse model. Passive avoidance test (PAT) and Morris water-maze test (MWMT) were performed after mice were treated with PGBC, followed by acetylcholine (ACh) measurement and glial fibrillary acidic protein (GFAP) detection for brain damage. Furthermore, acetylcholinesterase (AChE) activity and choline acetyltransferase (ChAT) expression were analyzed using Ellman's and qPCR assays, respectively. Results demonstrated that PGBC contained a high amount of ginsenosides (Re, Rd, and Rg3), which are responsible for the clearance of Aâ42. They also helped to significantly improve PAT and MWMT performance in the Aâ42-induced Alzheimer's mouse model when compared to the normal group. Interestingly, ACh and ChAT were remarkably upregulated and AChE activities were significantly inhibited, suggesting PGBC to be a palliative adjuvant for treating Alzheimer's disease. Altogether, PGBC was found to play a positive role in improving cognitive abilities. Thus, it could be a new alternative solution for alleviating Alzheimer's disease symptoms. |
| Author | 김서진(Seo Jin Kim) 진덕희(Duk Hee Jin) 안정원(Jeong Won Ahn) 이도익(Do Ik Lee) 성은아(Eun Ah Sung) 조보람(Boram Jo) 박희용(Hee Yong Park) 장수길(Su Kil Jang) 주성수(Seong Soo Joo) 김현수(Hyun Soo Kim) |
| Author_xml | – sequence: 1 fullname: 장수길(Su Kil Jang) – sequence: 2 fullname: 안정원(Jeong Won Ahn) – sequence: 3 fullname: 조보람(Boram Jo) – sequence: 4 fullname: 김현수(Hyun Soo Kim) – sequence: 5 fullname: 김서진(Seo Jin Kim) – sequence: 6 fullname: 성은아(Eun Ah Sung) – sequence: 7 fullname: 이도익(Do Ik Lee) – sequence: 8 fullname: 박희용(Hee Yong Park) – sequence: 9 fullname: 진덕희(Duk Hee Jin) – sequence: 10 fullname: 주성수(Seong Soo Joo) |
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| DocumentTitleAlternate | Double-processed ginseng berry extracts enhance learning and memory in an Aβ42-induced Alzheimer’s mouse model |
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| SubjectTerms | Acetylcholinesterase Acetyltransferase Alzheimer's disease Brain damage Brain injury Choline Choline O-acetyltransferase Cognitive ability Damage detection Fruits Ginseng Ginsenosides Glial fibrillary acidic protein Learning Memory Model testing Neurodegenerative diseases Signs and symptoms 식품과학 |
| Title | Aβ42로 유도된 알츠하이머 마우스 모델에서 이중 가공 인삼열매 추출물의 학습 및 기억 손실 개선 효과 |
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