JP5358627B2 - タラヨウ抽出物を有効成分として含む、虚血性疾患または退行性脳疾患の予防もしくは治療用または記憶障害の改善用の薬学的組成物 - Google Patents
タラヨウ抽出物を有効成分として含む、虚血性疾患または退行性脳疾患の予防もしくは治療用または記憶障害の改善用の薬学的組成物 Download PDFInfo
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Description
本発明(2)は、タラヨウ抽出物を有効成分として含む、記憶障害の改善用の薬学的組成物である。
本発明(3)は、前記抽出物が、水、アルコール、またはこれらの混合物を溶媒として抽出されることを特徴とする、本発明(1)または(2)の薬学的組成物である。
本発明(4)は、前記抽出物が、エチルアルコールを溶媒として抽出されることを特徴とする、本発明(1)または(2)の薬学的組成物である。
本発明(5)は、虚血性疾患が、脳梗塞、脳虚血、及び脳卒中からなる群より選択されるいずれか一つであり、退行性脳疾患が、認知症、アルツハイマー病、ハンチントン病、ピック病、及びクロイツフェルト・ヤコブ病からなる群より選択されるいずれか一つであることを特徴とする、本発明(1)または(2)の薬学的組成物である。
本発明(6)は、タラヨウ抽出物を有効成分として含む、虚血性疾患または退行性脳疾患の予防または改善用の健康機能食品である。
本発明(7)は、タラヨウ抽出物を有効成分として含む、記憶障害の改善用の健康機能食品である。
本発明(8)は、前記抽出物が、水、エチルアルコール、またはこれらの混合物を溶媒として抽出されることを特徴とする、本発明(6)または(7)の健康機能食品である。
本発明(9)は、前記抽出物が、エチルアルコールを溶媒として抽出されることを特徴とする、本発明(6)または(7)の健康機能食品である。
本発明(10)は、虚血性疾患が、脳梗塞、脳虚血、及び脳卒中からなる群より選択されるいずれか一つであり、退行性脳疾患が、認知症、アルツハイマー病、ハンチントン病、ピック病、及びクロイツフェルト・ヤコブ病からなる群より選択されるいずれか一つであることを特徴とする、本発明(6)または(7)の健康機能食品である。
1)タラヨウに抽出溶媒を加えて抽出する工程;
2)工程1)の抽出物を冷却し、次いで濾過する工程;及び
3)工程2)の濾過した抽出物を還流凝縮し、次いで乾燥する工程
を順に遂行することで、作製することができる。
<1-1>エチルアルコール抽出物の作製
タラヨウをソウル市キョンドン漢方薬市場で購入し、細かく切って使用した。タラヨウ100gを準備した後、3Lの100%エチルアルコールで還流凝縮器を用いて3時間室温で3回抽出した。前記溶液をワットマンNo.1濾紙で濾過し、乾燥し、最終的にエチルアルコール抽出物18.7gを得た。最終的に得たタラヨウ抽出物は、ジメチルスルホキシド(DMSO)に50mg/mlの濃度で溶解して-20℃で保管した。実験時、実験用緩衝液にDMSOの最終濃度が0.1%以下になるように希釈して使用した。
抽出溶媒として100%エチルアルコールの代わりに水を使用したことを除いて、前記実施例<1-1>の抽出方法と同様に抽出して粉末を得た(収率21.5%)。
抽出溶媒として100%エチルアルコールの代わりに80%エチルアルコールを使用したことを除いて、前記実施例<1-1>の抽出方法と同様に抽出して粉末を得た(収率20.4%)。
抽出溶媒として100%エチルアルコールの代わりに100%メタノールを使用したことを除いて、前記実施例<1-1>の抽出方法と同様に抽出して粉末を得た(収率19.1%)。
本発明者らは、脳梗塞誘発ラットにおけるタラヨウ抽出物の効能を確認するために、下記のような実験を遂行した。まず、300±5gのSDラット(セムタコ、京畿道)を1〜2%イソフラン(N2:O2=4:1)で吸入麻酔した後、外科的手術で右側頚動脈を注意深く露出させた。前記ラットの外頚動脈から中央部に分枝する舌動脈(lingual artery)と外頚動脈から内頚動脈の方へ分枝する甲状腺動脈(thyroid artery)を電気的焼灼して結紮した。ここで、各タラヨウ抽出物(各50、100、または200mg/kg)または陽性対照群であるMK-801(1mg/kg)を動脈結紮前30分及び結紮後1時間、及び結紮除去後1時間に経口で投与した。陰性対照群として何も入れていない実験用緩衝液(生理食塩注射液)を投与したラットを使用した。その後、内頚動脈の上方へY字状の分枝が確認されるまで周辺をよく整理した後、外頚動脈の頭側部分を糸で縛って血の流れを遮断し、総頚動脈と内頚動脈間の血流の流れを防止するために上下をクリップで止めた。その後、総頚動脈に小さな穴を作ってプローブを挿入した後、プローブと外頚動脈の下部分を出血にならない程度に糸で緩く縛った後に血流を止めたクリップを除去した。プローブを挿入した穴と外頚動脈を縛った部分の間を切った後、外頚動脈に挿入されたプローブを内頚動脈の方に注意深く挿入し、内頚動脈上側でY字状に分枝する血管の中で内側の血管にプローブを挿入した。ここで、プローブは総頚動脈の分枝部から20mmだけ挿入した。手術直後に直腸体温を測り始めて、以後6時間、37±0.5℃に維持した。閉塞の2時間後にプローブを除去して血流再開させ、24時間後にラットを頚椎脱臼により屠殺した後、脳を取り出した。取り出した脳をBrain matrixを用いて2mmの厚さに切った後、2%のTTC溶液で37℃で30分間染色してデジタルカメラで撮影し、画像分析システム(Optimas 6.1, Media Cybernetics, Silver Springs, 米国)を用いて梗塞容積及び浮腫容積を測定した。ここで、賦形剤で処理した群を対照群として各抽出物の梗塞容積を表1に示し、最も効果が高かったエチルアルコール抽出物の脳梗塞容積及び脳浮腫容積を図1にグラフで示した。
動物は、ICRマウス(BioLink Co. 大韓民国)を使用し、購入後の一定期間、適応期間を設けた後、実験初日(0日目)にタラヨウ(25、50、または100mg/kg)を経口投与して、30分後に27ゲージの針を装着した微細注射器を使用して1mM Aβ(25-35)(Bachem, スイス)15μl(15nmol)を脳室内にゆっくり注入した(Maurice T et al., Brain Reserch, 1996年, 第706巻, p.181-193)。その後1週間、それぞれ25、50、及び100mg/kgのタラヨウ抽出物を1日1回経口投与しながら、動物を受動回避箱(ステップスルー型装置)(Gemini II avoidance system, Sandiego Instrument)の明室に置いて両区画に適応するようにする適応試験を3回以上行なった。7日目にタラヨウ抽出物(25、50、または100mg/kg)を経口投与して30分後に動物を明室に置いた後、10秒後に扉を開き、動物が暗室に入った際には扉が閉まると共に電気刺激(0.2mA、2秒)が加えられるようにして前記マウスを一試行ステップスルー型受動処理(One trail step through passive-task)に条件付けした。前記受動回避箱は、断頭台形の扉で、格子底及び衝撃生成器を有する二つの区画(各25(W)×21(D)×19(H)cm)に区分されている。暗条件でマウスを開始地点に置いた後、50秒後に電気を点けた後に扉を開き、マウスが暗室に入った際には扉が閉まると共に電気刺激(0.2mA、2秒)が加えられるようにして動物が暗室内での電気ショック経験を記憶するようにした。24時間後に動物を明室に入れて同じ実験をすると、前日のショックを記憶している動物は暗室に移動しなかった。明室での動物の滞在時間を測定して記憶形成の指標にし、5分以上の滞在時間を有するものは5分とした。
直径90cm、深さ40cmの円型水槽を4等分して一つの区画に高さ20cmの足場を設置した。水の温度を20℃にして足場より1.5cm高く満たした後、全脂粉乳で不透明にして水面から足場が見えないようにした。マウスを任意の群に分け、各区画で一回ずつ泳がせて足場を探させる実験(予備試験)を一時間間隔で4区画で行ない、その時間を測定し(予備値)、最大水泳時間を2分として足場が探すことができない場合、人為的に足場に1分間乗せた。二日目に、受動回避実験と同じくマウスの脳室内に15nmolのAβ(25-35)を投与し(0日目)、対照群は滅菌生理食塩水を投与した。タラヨウ抽出物はAβ(25-35)を投与した日から始めて水迷路試験が終わる日まで毎日一回ずつ経口投与した。Aβ(25-35)を投与して4日目から毎日5日間(4日目〜8日目)、予備試験と同様の方法で、各マウスにつき一時間間隔で4回、足場を探し出すまでの時間を測定して平均値(到達までの時間)を測定し、記憶形成の程度を決定した。
<5-1>大脳皮質神経細胞の培養
初代大脳皮質神経細胞を、15ないし16日齢のスプラーグドーリーラット胎児から公知の方法で調製した(Ban JY et al., Life science, 2006年, 第79巻, p.2251-2259)。簡略に述べると、妊娠15日目のラットからエーテル麻酔下で胎児を取り出して、顕微鏡下で大脳皮質のみを取り出した。これをトリプシン(0.25mg/ml)を含むJMEM(Joklik変法イーグル培地)に入れ、5mlのピペットによって機械的に分散した後、これを37℃で10分間培養して酵素的に分離した。前記細胞懸濁液を1,500rpmで5分間遠心分離して得た細胞を含む沈澱層に、重炭酸ナトリウム(44mM)、ペニシリン(40U/ml)、ゲンタマイシン(50g/ml)、KCl(5mM)、及び10%牛胎児血清を含むDMEMを加えて、細胞濃度を2×106細胞/mlに調整して、ナイロンメッシュ(35μm)を通過させた後、あらかじめポリ−L−リジンでコーティングした培養容器に播種した。37℃、5%CO2/95%窒素を維持する条件のCO2インキュベータで培養した。
本発明者らは、前記実施例1で得たタラヨウの混合抽出物が神経細胞死滅に及ぼす影響を確認するために下記実験を行なった。ここで、前記実施例5-1で調製した大脳皮質神経細胞を培養3〜4日目に実験に使用した。前記神経細胞を何も処理しないか、前記実施例1で得たタラヨウ抽出物10、50、及び100μg/mlで処理した。処理してから15分後、神経細胞毒性を誘導するために前記神経細胞に無血清ダルベッコ変法イーグル培地(DMEM)に溶解した10μM Aβ(25-35)(Bachem, スイス)で処理して37℃で36時間培養した(Aβ単独処理群及びAβ+タラヨウ抽出物処理群)。その後、公知の方法で3-(4,5-ジメチルチアゾール-2-イル-2,5,ジフェニルテトラゾリウムブロマイド;MTT)分析を行なった(Ban JY et al., 2006年)。
培養した大脳皮質神経細胞の培養3日目に培地をグルコース不含HEPES緩衝液で交換した後、2% O2、5% CO2を維持する低酸素性チャンバ内にウェルプレートを入れて、該チャンバ内で24時間培養した。その後、培地を無血清DMEMで交換して、5% CO2インキュベータで6時間さらに培養し、MTT分析を通じて細胞生存率を測定した。対照群としては、無血清DMEM及びグルコース不含HEPES緩衝液で置換した細胞を5% CO2インキュベータに同じ時間曝露させた。また、虚血の条件を満たすために、培養された大脳皮質神経細胞の低酸素症の条件を作るチャンバで培養して細胞死を誘発し、それに対するタラヨウの抑制効果を検討した。
<1-1>散剤の製造
本発明のタラヨウ抽出物 300mg
乳糖 100mg
タルク 10mg
上記成分を混合して気密包装に充填して散剤を製造する。
本発明のタラヨウ抽出物 50mg
とうもろこし澱粉 100mg
乳糖 100mg
ステアリン酸マグネシウム 2mg
上記成分を混合した後、通常の錠剤の製造方法にしたがって打錠して錠剤を製造する。
本発明のタラヨウ抽出物 50mg
とうもろこし澱粉 100mg
乳糖 100mg
ステアリン酸マグネシウム 2mg
通常のカプセル剤製造方法によって上記成分を混合してゼラチンカプセルに充填してカプセル剤を製造する。
本発明のタラヨウ抽出物 50mg
注射用滅菌蒸留水 適量
pH調整剤 適量
通常の注射剤の製造方法によって1アンプル(2ml)あたり上記成分含量で製造する。
本発明のタラヨウ抽出物 1000mg
砂糖 20g
異性化糖 20g
レモン香料 適量
精製水を加えて全体量を1000mlに調整した。通常の液剤の製造方法によって上記成分を混合した後、茶色瓶に充填して滅菌し、液剤を製造した。
本発明のタラヨウ抽出物 1000mg
ビタミン混合物 適量
ビタミンAアセテート 70μg
ビタミンE 1.0mg
ビタミンB1 0.13mg
ビタミンB2 0.15mg
ビタミンB6 0.5mg
ビタミンB12 0.2μg
ビタミンC 10mg
ビオチン 10μg
ニコチン酸アミド 1.7mg
葉酸 50μg
パントテン酸カルシウム 0.5mg
無機混合物 適量
硫酸第1鉄 1.75mg
酸化亜鉛 0.82mg
炭酸マグネシウム 25.3mg
第1リン酸カリウム 15mg
第2リン酸カルシウム 55mg
クエン酸カリウム 90mg
炭酸カルシウム 100mg
塩化マグネシウム 24.8mg
上記ビタミン類及びミネラル類の混合物の組成比は、健康食品に適した成分を好ましい例で混合したが、その配合比は任意に変更して実施してもよく、通常の健康食品の製造方法によって上記成分を混合した後、顆粒に製造し、通常の方法によって健康食品組成物の製造に使用することができる。
本発明のタラヨウ抽出物 1000mg
クエン酸 1000mg
オリゴ糖 100g
梅濃縮液 2g
タウリン 1g
精製水を加えた全体量 900ml
通常の健康飲料の製造方法によって上記成分を混合し、85℃で約1時間撹拌加熱し、できた溶液を濾過滅菌した容器に取得して密封滅菌し、次いで冷蔵保管して、本発明の健康飲料組成物の製造に使用する。
Claims (5)
- タラヨウ(Ilex latifolia)抽出物を有効成分として含む、虚血性脳疾患または退行性脳疾患の予防または治療用の薬学的組成物。
- タラヨウ抽出物を有効成分として含む、記憶障害の改善用の薬学的組成物。
- 前記抽出物が、水、アルコール、またはこれらの混合物を溶媒として抽出されることを特徴とする、請求項1または2に記載の薬学的組成物。
- 前記抽出物が、エチルアルコールを溶媒として抽出されることを特徴とする、請求項1または2に記載の薬学的組成物。
- 虚血性脳疾患が、脳梗塞、脳虚血、及び脳卒中からなる群より選択されるいずれか一つであり、退行性脳疾患が、認知症、アルツハイマー病、ハンチントン病、ピック病、及びクロイツフェルト・ヤコブ病からなる群より選択されるいずれか一つであることを特徴とする、請求項1または2に記載の薬学的組成物。
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KR10-2010-0078374 | 2010-08-13 | ||
KR1020100078374A KR20120015874A (ko) | 2010-08-13 | 2010-08-13 | 일렉스 라티폴리아 추출물을 유효성분으로 함유하는 허혈성 질환 또는 퇴행성 뇌질환의 예방 또는 치료용 또는, 기억손상 개선용 약학적 조성물 |
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JP2012041340A JP2012041340A (ja) | 2012-03-01 |
JP5358627B2 true JP5358627B2 (ja) | 2013-12-04 |
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JP2011167922A Expired - Fee Related JP5358627B2 (ja) | 2010-08-13 | 2011-08-01 | タラヨウ抽出物を有効成分として含む、虚血性疾患または退行性脳疾患の予防もしくは治療用または記憶障害の改善用の薬学的組成物 |
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JP (1) | JP5358627B2 (ja) |
KR (1) | KR20120015874A (ja) |
CN (2) | CN105311071A (ja) |
HK (1) | HK1223011A1 (ja) |
TW (1) | TWI437998B (ja) |
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KR20150041223A (ko) * | 2013-10-04 | 2015-04-16 | 보령제약 주식회사 | 피마살탄을 포함하는 허혈성 뇌질환 예방 또는 치료용 약학적 조성물 |
KR102099087B1 (ko) | 2018-09-04 | 2020-05-15 | 곽민재 | 탈모방지 또는 발모개선용 조성물 |
CN109528739B (zh) * | 2019-01-10 | 2020-08-25 | 河南中医药大学 | 冬青苷o在制备防治老年痴呆的药物中的应用 |
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JP4544503B2 (ja) * | 2003-04-15 | 2010-09-15 | 株式会社アミノアップ化学 | 雲南苦丁茶成分を含有する組成物 |
CN101099754A (zh) * | 2006-07-07 | 2008-01-09 | 李超生 | 具栖冬青苷的制备方法及应用 |
CN101284031B (zh) * | 2008-06-03 | 2011-05-04 | 上海雷允上科技发展有限公司 | 毛冬青提取物、其制备及应用 |
CN101366738B (zh) * | 2008-10-09 | 2011-05-11 | 河南中医学院 | 毛冬青总黄酮在制备防治短暂脑缺血综合症药物的应用 |
KR101054943B1 (ko) * | 2008-11-14 | 2011-08-05 | 조선대학교산학협력단 | 쿠딩차 추출물로부터 항산화 활성을 갖는 페놀릭 화합물 및이를 유효성분으로 포함하는 기능성식품 |
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2010
- 2010-08-13 KR KR1020100078374A patent/KR20120015874A/ko not_active Application Discontinuation
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2011
- 2011-07-25 TW TW100126206A patent/TWI437998B/zh not_active IP Right Cessation
- 2011-08-01 JP JP2011167922A patent/JP5358627B2/ja not_active Expired - Fee Related
- 2011-08-15 CN CN201510740439.2A patent/CN105311071A/zh not_active Withdrawn
- 2011-08-15 CN CN201110232268.4A patent/CN102370675B/zh not_active Expired - Fee Related
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Publication number | Publication date |
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KR20120015874A (ko) | 2012-02-22 |
JP2012041340A (ja) | 2012-03-01 |
TW201206454A (en) | 2012-02-16 |
CN105311071A (zh) | 2016-02-10 |
HK1223011A1 (zh) | 2017-07-21 |
TWI437998B (zh) | 2014-05-21 |
CN102370675B (zh) | 2017-06-09 |
CN102370675A (zh) | 2012-03-14 |
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