• 한국자원식물학회지
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• 제30권1호
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• pp.17-21
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• 2017

AChE 억제제는 알츠하이머 질환 치료에 이용될 수 있으므로, 본 연구는 더위지기 정유로부터 AChE 활성성분을 탐색하기 위하여 수행한 것이다. 더위지기로부터 얻은 정유를 GC-MS로 분석했을 때 camphor가 29.8%, borneol이 28.0%, eucalyptol이 5.81%, coumarin이 5.49%의 피크 면적 비율을 보였다. 이 중 camphor, borneol, coumarin을 사용하여 Anti-AChE 활성 검색을 수행하였다. 그 결과, $0.298mg/m{\ell}$, coumarin은 $0.236mg/m{\ell}$의 $IC_{50}$ 값을 나타내었다. 이러한 결과는 coumarin이 anti-AChE 활성을 나타내는 활성물질임을 나타내는 것이다.

• 동의신경정신과학회지
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• 제29권3호
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• pp.121-134
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• 2018

Objectives: The purpose of this in vivo study is to observe anti-amnesic effects of Yeongkyekamjotanggayonggolmoryo (YGYM), a novel mixed herbal prescription, Ossis Mastodi and Ostreae Testa added Yeongkyekamjo-tang, on scopolamine induced amnesia in C57BL/6 mice through acetylcholine (ACh) and acetylcholinesterase (AChE) activity, Choline acetyltransferase (ChAT) mRNA expression, and antioxidant effects. Methods: Six groups, total 20 intact or 100 Sco treated mice were used in this study after one week of acclimatization period. Half the animals were used for passive avoidance task tests and hippocampus ACh content, AChE activity, and ChAT mRNA expression were measured. The other half was subjected to an underwater maze test and then the cerebral cortex antioxidant defense system was measured. Results: In the passive avoidance experiment, there was significant decrease in residence time in the bright room and in the underwater maze test, escape latency to escape from the esophagus significantly increased compared with the normal control group. At the final sacrifice, ACh content and ChAT mRNA expression decreased, AChE activity increased, and cerebral cortical MDA increased GSH content, SOD and CAT activity in Sco control mice, as compared to intact vehicle control mice. However, these Sco treatment-related memory loss through AChE activation destroyed the cerebral cortex antioxidant defense system, and was inhibited dose-dependently by 28 days consecutive oral pretreatments of YGYM extracts 500, 250, 125 mg/kg. Conclusions: In the above results, YGYM extract that oral administration of YGYM extracts alleviates the antioxidant defense system, through preservation of ACh mediated by upregulation of ChAT mRNA expression, and increase of AChE inhibition and brain antioxidant defense systems.

• 동의신경정신과학회지
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• 제29권4호
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• pp.207-221
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• 2018

Objectives: The objective of this study was to observe the anti-amnesic effects of Yukmijihwang-tang (YMJHT), on the scopolamine (Sco)-induced memory impairment in C57BL/6 mice through its favorable acetylcholine (ACh). Also, to observe acetylcholinesterase (AChE) activity, Choline acetyltransferase (ChAT) mRNA expressions, and antioxidant effect. Methods: Six groups, with a total of 20 normal and 100 Sco treated mice were selected based on their body weights after 1 week of acclimatization, were used in this study as follows. Half of the mice in each group were used for passive avoidance task tests and hippocampus ACh content, AChE activity and ChAT mRNA expression measurement, and the remaining half in each group used for Morris water maze test and measurement of cerebral antioxidant defense system. Results: Amnesia due to AChE activations and destroyed cerebral cortex antioxidant defense systems were markedly and dose-dependently inhibited after 28 days of continuous oral pre-treatment with YMJHT 400, 200 and 100 mg/kg, respectively. The overall effects of YMJHT 400 mg/kg were similar to those of tacrine 10 mg/kg. Conclusions: Based on the results, it was established that oral administration of YMJHT favorably alleviates Sco-induced memory impairment, through preservation of ACh, mediated by up-regulation of ChAT mRNA expressions and related AChE inhibition and augmentation of cerebral antioxidant defense system, at least in a condition of this experiment. The overall effects of YMJHT 400 mg/kg were similar to those of tacrine 10 mg/kg.

• 한국미생물·생명공학회지
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• 제38권2호
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• pp.177-182
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• 2010

충청남도의 주요 전통주들의 생주와 시판 살균주들을 수집하여 이들의 물리화학적 성질과 품질특성, 유해성분 및 생리기능성 등을 조사하였다. 충남지역 10종의 전통주들의 pH는 3.27~4.76, 총산 함량은 0.15~0.55%, 에탄올 함량은 16.1~18.3%이었다. 영양성분으로 아미노태질소 함량은 10.15~139.9 mg%로 B 주에서 가장 높았고 생주보다 살균주가 0.5~28.2 mg%만큼 더 많이 함유하고 있었다. 총당 함량은 2.5~25.7%로 5종의 전통주 간에 차이가 컸으며 생주와 살균주의 차이는 나타나지 않았다. 유리당 중 과당은 검출되지 않거나 2.87%로 낮았고, 포도당은 1.24~23.64%, 설탕은 검출되지 않거나 2.06%를 함유하고 있었다. 유기산 중주석산은 0.5 mg% 미만, 사과산은 0.1~0.7 mg%, 말론산은 0.4 mg% 미만, 젖산은 7.4~29.6 mg%, 초산은 0.2 mg% 미만, 구연산은 0.1~2.9 mg%, 호박산은 0.2~2.7 mg% 그리고 프로피온산은 0.7~8.3 mg% 검출되었다. 숙취성분 중 알데하이드 함량은 19.8~23.3 mg/100mL, 에틸카바메이트는 0.9~21.9 ppb 그리고 퓨젤유 중 부탄올과 아밀알코올은 검출되지 않았으며 프로판올은 75.59 ppb 미만, 이소부탄올은 155.87 ppb 미만, 이소아밀알코올은 234.57 ppb 미만이 검출되었다. 생리활성 중 혈전용해 활성은 10종의 전통주 모두 없었고 항산화 활성은 2.92~9.26%, SOD 유사 활성은 생주에서는 없거나 10.97%이었으나 살균 처리 과정에서 열에 의한 불활성화로 살균주에서는 없었다. 항치매 활성을 나타내는 AChE 저해 활성은 1.96~7.93%, 항고혈압 활성으로 알려져 있는 ACE 저해 활성은 37.0~86.0%로 C 주를 제외하고 높은 활성을 보였다. 폴리페놀 함량은 260.67~480.41 ${\mu}g/mL$로 C 주에서 가장 높았다.