Abstract:
본 발명은 뇌 신경 세포 보호물질을 포함하는 석류 추출물을 포함하는 뇌 신경 질환의 예방 또는 치료용 조성물에 관한 것이다. 보다 구체적으로, 뇌 신경 세포 보호물질로서 2,4-비스(1,1-디메틸에틸)-페놀(2,4-bis(1,1-dimethylethyl)-phenol)을 포함하고, 산화적 스트레스(oxidative stress) 유발을 감소시키며 세포 활성(cell viability)을 증대시킬 뿐만 아니라 치매 모델 동물실험의 대안행동(alternative behavior) 및 스텝 쓰루 레턴시(step through latency) 수동회피검사에서 기억 학습 능력을 유지시키는 석류 추출물이 포함된 인체에 무해한 뇌신경 질환의 예방 또는 치료용 조성물에 관한 것이다. 석류, 2,4-bis(1,1-dimethylethyl)-phenol, 아밀로이드 베타 펩티드(amyloid β peptide (Aβ)), 산화적 스트레스, 알츠하이머
Abstract:
PURPOSE: A composition containing Ipomoea batatas extract or 2,4-di-terbutylphenol for preventing and treating brain diseases is provided to ensure an effect for Alzheimer's disease. CONSTITUTION: A pharmaceutical composition for preventing and treating brain diseases contains Ipomoea batatas extract or fraction thereof as an active ingredient. The Ipomoea batatas extract is isolated using water, organic solvent, or mixture solvent thereof. The fraction is a water fraction, hexane fraction, chloroform fraction, or ethyl acetate fraction. The brain diseases are Alzheimer's diseases, senile dementia, vascular dementia, Huntington`s chorea, Parkinson's disease, migraine, or depression. A pharmaceutical composition for preventing and treating brain diseases contains 2,4-di-tert-butylphenol isolated from the Ipomoea batatas extract or pharmaceutically acceptable salt thereof.
Abstract:
PURPOSE: A method for manufacturing an electron emission source, and a method for manufacturing an electronic device and a display are provided to manufacture the electron emission source with high current density by forming an electron emission layer using immersion electron emission materials through a window. CONSTITUTION: A cathode electrode(20) with a surface adhesive property is prepared. A mask with a window(23) for forming an electron emission layer is prepared. An electron emission material(30) with a power state is supplied through the window. The electron emission materials remaining on the mask is removed. The electron emission layer with a pattern corresponding to the window is formed on a cathode electrode.
Abstract:
PURPOSE: A composition containing 8-methoxypsoralen isolated from Poncirus trifoliate is provided to suppress acetylcholine esterase and prevent or treat Alzheimer disease. CONSTITUTION: A composition for preventing or treating Alzheimer disease contains 8-methoxypsoralen as an active ingredient. The 8-methoxypsoralen is isolated from Poncirus trifoliate. The composition for preventing or treating Alzheimer disease is pharmaceutical composition or food composition. A method for isolating 8-methoxypsoralen from Poncirus trifoliate comprises: a step of preparing ethanol extract from Poncirus trifoliate; a step f performing reflux extraction of the Poncirus trifoliate ethanol extract using hexane, chloroform, and ethyl acetate to obtain each solvent fraction; a step of performing silica gel column chromatography; and a step of isolating through HPLC.
Abstract:
PURPOSE: A composition containing Plantago asiatica for preventing or treating neurodegenerative diseases is provided to reduce oxidative stress and enhance cell viability. CONSTITUTION: A pharmaceutical composition for preventing or treating neurodegenerative diseases contains Plantago asiatica extract. The disease is Alzheimver disease. The Plantago asiatica extract is isolated using ethanol extract. A pharmaceutical composition for preventing or treating neurodegeneratibe disesases contains 4-vinyl-2-methoxynol. A method for isolating the 4-vinyl-2-methoxynol comprises: a step of fractioning the extract with other organic solvent to obtain fraction; a step of passing the fraction through an open silica gel column to obtain brain-damaged suppression activity; and a step of performing HPLC.
Abstract:
본 발명은 부추 추출물의 새로운 용도에 관한 것으로, 더욱 구체적으로 뇌 신경세포 콜린아세틸트랜스퍼라제(cholineacetyltransferas, ChAT) 활성화 기능을 갖는 부추 추출물, 상기 부추 추출물에서 분리된 콜린아세틸트랜스퍼라제 활성화 기능을 갖는 저분자성 플라보노이드류인 4-히드록시-3-메톡시신남산 (4-hydroxy-3-methoxycinnamic acid, ferulic acid) 및 그의 정제 방법에 관한 것이다. 본 발명은 뇌 신호세포 관련 연구가 전무한 국내 식용 생물자원인 부추로부터 뇌 신경세포 콜린아세틸트랜스퍼라제 활성화 물질인 페룰산(ferulic acid)을 분리 및 정제하였고 그 정제공정의 효율성을 제고하였다. 따라서, 부추 추출물에 포함된 저분자성 유효 성분은 뇌신경 질환의 치료 및 예방을 위한 기능성 식품 또는 의약품의 신소재로서 유용하게 이용될 수 있다.
Abstract:
The extract of Pueraria thunbergiana or a low molecular weight flavonoid extracted therefrom is provided to activate choline acetyltransferase in brain nerve cells, so that it is useful for preventing or treating brain nerve disease. A composition for activating choline acetyltransferase in brain nerve cells comprises the extract of Pueraria thunbergiana as an effective ingredient, wherein the extract of Pueraria thunbergiana is prepared with methanol or ethanol. The low molecular weight flavonoid extracted from the extract of Pueraria thunbergiana is 4',7-dihydroxyisoflavone(daidzein), wherein low molecular weight flavonoid is purified by (i) extracting dried Pueraria thunbergiana with methanol or ethanol, (ii) fractionating the methanol or ethanol extract with hexane, chloroform and ethylacetate sequentially, (iii) subjecting the ethylacetate fraction to first and second open silica gel column, (iv) subjecting the active fraction to thin layer chromatography, and (v) subjecting the active fraction to high pressure liquid chromatography.
Abstract:
A composition for inhibiting brain neurotoxicity is provided to separate and purify the brain neurotoxicity inhibiting materials from edible Rosa laevigata Michx, thereby being used for functional foods or medicinal products for treating and preventing brain neuronal diseases. The composition for inhibiting brain neurotoxicity comprises Rosa laevigata Michx extract as an effective ingredient. The Rosa laevigata Michx extract is prepared by using methanol or ethanol as an extract solvent and contains 1,2-benzenedicarboxylic acid dinonyl ester as an active ingredient.
Abstract:
본 발명은 특정 카테킨류를 함유하는 알코올 유도 cytochromeP450 2E1(CYP2E1)이 생성한 활성산소종으로부터 간세포 보호용 조성물에 관한 것이다. 본 발명에 따른 조성물은 (-)epigallocatechin gallate(EGCG), (-)catechin gallate(CG), (-)epicatechin(EC), (-)epicatechin gallate(ECG) 중에서 1종 또는 2종 이상의 혼합물을 유효성분으로 함유하며, 알코올성 간질환 예방용 기능성식품이나 식품첨가물 또는 약물에 유용하게 사용될 수 있다.
Abstract:
본 발명은 알코올에 의한 간 섬유화 또는 간경화 예방 및 치료용 식물 유래 추출물에 관한 것이다. 본 발명은 산수유 ( Comus officinalis ), 솔잎 ( Pinus koraiensis ), 녹차 ( Camellia Sinensis )의 메탄올 추출물로서 간성상세포인 HSC-T6 cell에서의 간섬유화의 지표인 collagen type I의 생성억제와 급성 간경화 모델 흰쥐에서의 간섬유화 또는 간경화 예방 및 보호 효과를 보임으로써, 본 발명은 간보호 기능성 식품이나 식품첨가물 또는 치료용 제제의 소재로 이용될 수 있다.