JP4215135B2 - Antiplasmin - Google Patents

Antiplasmin Download PDF

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JP4215135B2
JP4215135B2 JP16505897A JP16505897A JP4215135B2 JP 4215135 B2 JP4215135 B2 JP 4215135B2 JP 16505897 A JP16505897 A JP 16505897A JP 16505897 A JP16505897 A JP 16505897A JP 4215135 B2 JP4215135 B2 JP 4215135B2
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Prior art keywords
skin
extract
birch
antiplasmin
present
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JPH10338614A (en
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雄三 吉田
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Shiseido Co Ltd
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Shiseido Co Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は抗プラスミン剤に関し、さらに詳しくは、患部においてセリンプロテアーゼ、特にプラスミンの活性変化が認められる接触性皮膚炎、乾癬、尋常性天疱瘡、先天性水疱瘡等の種々の皮膚疾患の他、乾燥や洗浄剤等によって惹起される肌荒れ、荒れ性に対して改善・予防効果を有し、また止血剤としても利用可能な抗プラスミン剤に関する。
【0002】
【従来の技術および発明が解決しようとする課題】
従来より、皮膚疾患や肌荒れに対して改善・予防効果を有するものとして種々の治療薬、皮膚外用剤、化粧料等が知られている。これら従来の薬剤や化粧料等における有効成分としては、抗炎症作用を有する、あるいは保湿効果の高いアミノ酸や多糖、脂質、抽出エキス等が皮膚の炎症や角質層の水分の消失を防ぐ能力に優れているために用いられてきた。しかしながらいずれにおいてもその肌荒れ改善・予防効果は必ずしもすべての事例において十分であるとはいえず、疾患の原因に応じてより優れた薬効剤の開発が期待されていた。
【0003】
一方、近年種々の皮膚疾患の病像形成にはプラスミンが関与していることが明らかにされつつある。例えば炎症性異常角化性疾患の代表である乾癬では、その患部表皮において高いプラスミノーゲンアクチベーター(Plasminiogen activator:PA)活性が認められている。PAはプラスミノーゲンに特異的に働いてそれを活性なプラスミンに変換する因子で、この因子の代表例の1つにセリンプロテアーゼ等のプロテアーゼが挙げられる。このPA活性と皮膚疾患との関係については、例えば、乾癬表皮の特に錯角化部位に強いPA活性が存在するという報告(Haustein:Arch.Klin.Exp.Dermatol;234,1969)や、乾癬鱗屑から高濃度の塩溶液を用いてPAを抽出したという報告(Fraki, Hopsu-Havu:Arch.Dermatol.Res;256,1976)がなされている。また、尋常性天疱瘡においては、表皮細胞内で多量に合成されたPAが細胞外に存在するプラスミノーゲンをプラスミンに転換し、これが細胞間結合物質を消化することにより細胞間に組織液が貯留して表皮内水疱が形成されることが、in vitroの実験系において明らかにされている(Morioka
S.:J.Invest.Dermatol;76,1981)。
【0004】
またプラスミンは、角質層形成など表皮の正常な角化過程においても重要な役割を果たしていると考えられており(Ogawa H.,Yoshiike T.:Int.J.Dermatol;23,1984)、肌改善あるいは皮膚疾患の治療薬として抗プラスミン剤を用いる試みがなされるようになってきている。
【0005】
【課題を解決するための手段】
上述のような現況に鑑み、本発明者らはプラスミンに起因する種々の皮膚疾患、肌荒れ、荒れ性等の改善・予防に有効な抗プラスミン剤を得るべく、広く種々の物質について抗プラスミン活性を調べた結果、カバノキ属に属する植物の抽出物(バーチエキス)が優れた抗プラスミン活性を有していることを見い出し、これに基づき本発明を完成するに至った。
【0006】
すなわち本発明は、カバノキ属(Betulaceae)に属する植物の抽出物(バーチエキス)を有効成分とすることを特徴とする抗プラスミン剤である。
【0007】
カバノキ属に属する植物の抽出物(バーチエキス)については、表皮性の微生物が産生するプロテアーゼに起因すると考えられる毛嚢炎、尋常性毛瘡等の疾患の予防または治療という観点から、微生物由来のプロテアーゼに対して当該植物抽出物が阻害活性を有しているという報告はすでになされているが(特願平1−128934号)、皮膚疾患の病像形成とプラスミン活性の変化に着目した当該植物抽出物の抗プラスミン活性についての報告はこれまでになく、今回はじめて見い出されたものである。
【0008】
以下、本発明について詳述する。
本発明に用いられるカバノキ属に属する植物には、Betula alba L.(シラカバ)、Betula leuta L.(北米産シラカバ)、Betula pendula Roth.(ヨーロッパシラカバ)等が挙げられ、これらのうちの一種または二種以上が用いられる。
【0009】
本発明の抗プラスミン剤は、上記カバノキ属に属する植物の葉、樹皮、木部のいずれか、または混合物を、抽出溶媒と共に浸漬または加熱還流した後、濾過し、濃縮して得ることができる。抽出溶媒としては、通常抽出に用いられる溶媒であれば任意に用いることができ、例えば、メタノール、エタノール等のアルコール類、含水アルコール、アセトン、酢酸エチルエステル等の有機溶媒を単独あるいは組み合わせて用いることができる。また、抽出物を上記の溶媒を用い、分配あるいはクロマトグラフィーのごとき精製等の処理を加えて得られたものを用いることもできる。
【0010】
本発明の抗プラスミン剤は主として外用剤として用いられ、その場合のカバノキ属に属する植物の抽出物の配合量は、外用剤全量中乾燥物として0.005〜20.0重量%、好ましくは0.01〜10.0重量%である。0.005重量%未満であると、本発明でいう効果が十分に発揮されず、20.0%を超えると製剤化が難しいので好ましくない。また、10.0重量%以上配合してもさほど大きな効果の向上はみられない。
【0011】
本発明の抗プラスミン剤には、上記必須成分以外に、通常化粧品や医薬品等の皮膚外用剤に用いられる成分、例えば、美白剤、保湿剤、酸化防止剤、油性成分、紫外線吸収剤、界面活性剤、増粘剤、アルコール類、粉末成分、色材、水性成分、水、各種皮膚栄養剤等を必要に応じて適宜配合することができる。
【0012】
その他、エデト酸二ナトリウム、エデト酸三ナトリウム、クエン酸ナトリウム、ポリリン酸ナトリウム、メタリン酸ナトリウム、グルコン酸等の金属封鎖剤、カフェイン、タンニン、ベラパミル、トラネキサム酸およびその誘導体、甘草抽出物、グラブリジン、カリンの果実の熱水抽出物、各種生薬、酢酸トコフェロール、グリチルリチン酸およびその誘導体またはその塩等の薬剤、ビタミンC、アスコルビン酸リン酸マグネシウム、アスコルビン酸グルコシド、アルブチン、コウジ酸等の美白剤、グルコース、フルクトース、マンノース、ショ糖、トレハロース等の糖類なども適宜配合することができる。
【0013】
本発明の抗プラスミン剤とは、例えば軟膏、クリーム、乳液、ローション、パック、浴用剤等、従来皮膚外用剤に用いるものであればいずれの形で適用することもでき、剤型は特に問わない。
【0014】
【実施例】
以下に実施例によって本発明をさらに詳細に説明する。なお、本発明はこれにより限定されるものではない。配合量は重量%である。
実施例に先立ち、本発明のカバノキ属に属する植物の抽出物の抗プラスミン活性および肌改善作用(実使用試験)に関する試験方法およびその評価基準について説明する。
【0015】
1.抗プラスミン試験
(1) 試料の調製
Betula alba L.(シラカバ)の樹皮50g(湿重量)を室温で1週間,5倍量のエタノールに浸漬し、抽出液を濃縮乾固した。この固形物をジメチルスルホキシド(DMSO)に溶解し、3%溶液を作製した。これを用いて以下の実験を行った。
【0016】
(2)抗プラスミン活性の測定
フィブリン平板法にて阻害率%を求めた。すなわち1.0%のプラスミノーゲン除去フィブリノーゲンを含むベロナール緩衝液(0.125M−NaOHを含む25mMバルビタール酸ナトリウム水溶液,pH7.4)6mlを9cmφシャーレに注ぎ、そこに1.0M−CaCl2を0.2mlと25U/mlのトロンビン0.1mlを加えて静かに混和し、1時間放置した。フィブリノーゲンがフィブリンに変化することによって形成された平板上に、5U/mlのプラスミンと被験物質を29:1の割合で混合した混合物を、37℃で10分間保温した後20μl添加し、さらに37℃で18時間放置した。対照として被験試料の代わりにDMSOを用いて同様の操作を行い、その後、フィブリンが溶解して形成された溶解円の面積を測定し、下記の数式(1)によりプラスミン阻害率を求めた。その結果を表1に示す。
【0017】
【数1】
阻害率(%)=1−(被験試料の溶解円面積/対照の溶解円面積) …(1)
【0018】
また、参考例として、抗炎症、収斂作用を有するとされ、すでに肌荒れに対する適用が知られている植物であるオオバク(Phellodendron amurense Ruprecht)のエタノール抽出物についても上記と同様の試験を行った。その結果を併せて表1に示す。
【0019】
【表1】

Figure 0004215135
【0020】
表1から分かるように、シラカバ抽出物は、オオバク抽出物に比べ、格段に優れた抗プラスミン活性を有することがわかる。
【0021】
2. 実使用試験
(1)カミソリ負けに対する改善効果試験
本発明に係わる抗プラスミン剤の外皮適用による効果を、カミソリ負けに対する改善率ならびに皮膚刺激性から評価した。その結果を表2に示す。
なお試料としては、表2に示すように、本発明品としてシラカバ(Betula alba L.)の樹皮の50%エタノール抽出物の濃度を変えたローションを2種、比較品として、すでに肌荒れに対する適用が知られているオオバクの50%エタノール抽出物を配合したローションと、シラカバ抽出物およびオオバク抽出物を除いたローションを用いた。
【0022】
▲1▼カミソリ負けに対する改善率
カミソリ負けする男性パネル40名を10名ずつ4群に分け、ひげ剃り直後に表2に示す本発明品もしくは比較品を塗布し、カミソリ負けに対する効果を判定した。判定基準および評価は以下の通りとした。
【0023】
(カミソリ負けに対する改善効果の判定基準)
著効:カミソリ負けの消失したもの。
有効:カミソリ負けの弱くなったもの。
やや有効:カミソリ負けがやや弱くなったもの。
無効:カミソリ負けに変化を認めないもの。
【0024】
(カミソリ負けに対する改善効果の評価)
◎:被験者が著効、有効及びやや有効を示す割合(有効率)が80%以上。
○:被験者が著効、有効及びやや有効を示す割合(有効率)が50%以上,80%未満。
△:被験者が著効、有効及びやや有効を示す割合(有効率)が30%以上,50%未満。
×:被験者が著効、有効及びやや有効を示す割合(有効率)が30%未満。
【0025】
▲2▼皮膚刺激性
上記のカミソリ負けに対する改善率の判定に際し、本発明品と比較品の皮膚刺激性について判定、評価した。評価基準は以下の通りとした。
【0026】
(皮膚刺激性の評価)
◎:肌にヒリヒリ感を認めた被験者の割合が0%。
○:肌にヒリヒリ感を認めた被験者の割合が5%未満。
△:肌にヒリヒリ感を認めた被験者の割合が10%未満。
×:肌にヒリヒリ感を認めた被験者の割合が10%以上。
【0027】
【表2】
Figure 0004215135
【0028】
表2から明らかなように、シラカバ抽出物を1.0%以上配合した本発明品のローションは、比較品のローションよりもカミソリ負けに対して優れた改善効果を示し、さらに皮膚刺激性も認められなかった。
【0029】
(2)レプリカ法による実使用試験
上記の本発明品1,2と比較品1,2のローションを用いて、人体パネルで肌荒れ改善効果試験を行った。即ち、女性健常人(顔面)の皮膚表面形態をミリスン樹脂によるレプリカ法を用いて肌のレプリカを取り、顕微鏡(17倍)にて観察した。皮紋の状態及び角層の剥離状態から以下に示す判定基準に基づいて肌荒れ評価1、2と判断されたもの(肌荒れパネル)20名を用い、顔面左右半々に、本発明品1,2と比較品1,2のローションを1日1回、2週間塗布した。2週間後、再び上述のレプリカ法にしたがって肌の状態を観察し、判定基準にしたがって評価した。その結果を表3に示す。
【0030】
(レプリカ判定基準)
1:皮溝、皮丘の消失、広範囲の角層のめくれが認められる。
2:皮溝、皮丘が不鮮明、角層のめくれが認められる。
3:皮溝、皮丘は認められるが、平坦。
4:皮溝、皮丘が鮮明。
5:皮溝、皮丘が鮮明で整っている。
【0031】
【表3】
Figure 0004215135
【0032】
表3から分かるように、本発明品のローションは比較品のローションと比較し、顕著な肌荒れ改善効果が認められた。
【0033】
実施例1 クリーム
(処方) 重量%
ステアリン酸 5.0
ステアリルアルコール 4.0
イソプロピルミリステート 18.0
グリセリンモノステアリン酸エステル 3.0
プロピレングリコール 10.0
シラカバ(Betula alba L.)エタノール抽出物 0.05
苛性カリ 0.2
亜硫酸水素ナトリウム 0.01
防腐剤 適量
香料 適量
イオン交換水 残余
(製法)
イオン交換水にプロピレングリコールとシラカバエタノール抽出物と苛性カリを加え溶解し、加熱して70℃に保つ(水相)。他の成分を混合し加熱融解して70℃に保つ(油相)。水相に油相を徐々に加え、全部加え終わってからしばらくその温度に保ち反応を起こさせる。その後、ホモミキサーで均一に乳化し、よくかきまぜながら30℃まで冷却する。
【0034】
Figure 0004215135
(製法)
イオン交換水にプロピレングリコールを加え、加熱して70℃に保つ(水相)。他の成分を混合し加熱融解して70℃に保つ(油相)。水相に油相を加え予備乳化を行い、ホモミキサーで均一に乳化した後、よくかきまぜながら30℃まで冷却する。
【0035】
Figure 0004215135
(製法)
イオン交換水に石けん粉末と硼砂を加え、加熱して70℃に保つ(水相)。他の成分を混合し加熱融解して70℃に保つ(油相)。水相に油相をかきまぜながら徐々に加え反応を行う。その後、ホモミキサーで均一に乳化し、よくかきまぜながら30℃まで冷却する。
【0036】
Figure 0004215135
(製法)
少量のイオン交換水にカルボキシビニルポリマーを溶解する(A相)。残りのイオン交換水にポリエチレングリコール1500とトリエタノールアミンを加え、加熱溶解した70℃に保つ(水相)。他の成分を混合し加熱融解して70℃に保つ(油相)。水相に油相を加え予備乳化を行い、A相を加えホモミキサーで均一に乳化し、乳化後よくかきまぜながら30℃まで冷却する。
【0037】
Figure 0004215135
(製法)
イオン交換水にプロピレングリコールを加え、加熱して70℃に保つ(水相)。他の成分を混合し加熱融解して70℃に保つ(油相)。油相をかきまぜながら水相を徐々に加え、ホモミキサーで均一に乳化した後、よくかきまぜながら30℃まで冷却する。
【0038】
Figure 0004215135
(製法)
イオン交換水にカーボポール940を均一に溶解し、一方、95%エタノールにヨーロッパシラカバ抽出物、ポリオキシエチレン(50モル)オレイルアルコールエーテルを溶解し、水相に添加する。次いで、その他の成分を加えた後苛性ソーダ、L−アルギニンで中和させ増粘する。
【0039】
Figure 0004215135
(製法)
A相、B相をそれぞれ均一に溶解し、A相にB相を加えて可溶化する。次いでシラカバ抽出物を分散させたC相をこれに加えた後、充填を行う。
【0040】
【発明の効果】
以上説明したように、本発明によれば、プラスミンに起因する種々の皮膚疾患、健常人の肌荒れ、荒れ性等の改善・予防に優れた効果を有する抗プラスミン剤を提供することができる。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an antiplasmin agent, and more specifically, various skin diseases such as contact dermatitis, psoriasis, pemphigus vulgaris, congenital chicken pox, etc. in which the activity of serine proteases, particularly plasmin, is observed in the affected area, as well as dryness The present invention relates to an antiplasmin agent which has an effect of improving / preventing rough skin and roughness caused by a detergent and a cleaning agent and can also be used as a hemostatic agent.
[0002]
[Background Art and Problems to be Solved by the Invention]
Conventionally, various therapeutic agents, external preparations for skin, cosmetics, and the like are known as having an effect of improving / preventing skin diseases and rough skin. As active ingredients in these conventional drugs and cosmetics, amino acids, polysaccharides, lipids, extract extracts, etc. that have anti-inflammatory action or have a high moisturizing effect are excellent in the ability to prevent skin inflammation and loss of moisture in the stratum corneum Has been used for. However, in any case, the effect of improving and preventing rough skin is not necessarily sufficient in all cases, and development of a better medicinal agent was expected depending on the cause of the disease.
[0003]
On the other hand, in recent years, it has been clarified that plasmin is involved in the pathogenesis of various skin diseases. For example, in psoriasis, which is representative of an inflammatory abnormal keratotic disease, high plasminogen activator (PA) activity is recognized in the affected epidermis. PA is a factor that specifically acts on plasminogen and converts it into active plasmin. One typical example of this factor is a protease such as serine protease. Regarding the relationship between this PA activity and skin diseases, for example, from the report that there is strong PA activity at the complexed part of the psoriatic epidermis (Haustein: Arch.Klin.Exp.Dermatol; 234,1969) It has been reported that PA was extracted using a salt solution with a high concentration (Fraki, Hopsu-Havu: Arch. Dermatol. Res; 256, 1976). In pemphigus vulgaris, PA synthesized in large amounts in the epidermis cells converts plasminogen present outside the cells into plasmin, which digests the intercellular binding substances, resulting in accumulation of tissue fluid between the cells. It has been shown in in vitro experimental systems that intraepidermal blisters are formed (Morioka
S .: J. Invest. Dermatol; 76, 1981).
[0004]
Plasmin is also thought to play an important role in the normal keratinization process of the epidermis such as stratum corneum (Ogawa H., Yoshiike T .: Int. J. Dermatol; 23, 1984). Alternatively, attempts have been made to use antiplasmin agents as therapeutic agents for skin diseases.
[0005]
[Means for Solving the Problems]
In view of the current situation as described above, the present inventors have investigated antiplasmin activity for a wide variety of substances in order to obtain antiplasmin agents effective for the improvement and prevention of various skin diseases, rough skin, and roughness caused by plasmin. As a result, it was found that an extract of a plant belonging to the genus Birch (birch extract) has an excellent antiplasmin activity, and based on this, the present invention has been completed.
[0006]
That is, the present invention is an antiplasmin agent characterized by comprising an extract (birch extract) of a plant belonging to the genus Betulaceae as an active ingredient.
[0007]
Extracts from plants belonging to the genus Birch (birch extract) are proteases derived from microorganisms from the viewpoint of prevention or treatment of diseases such as folliculitis and acne vulgaris, which are considered to be caused by proteases produced by epidermal microorganisms. Has already been reported that the plant extract has inhibitory activity (Japanese Patent Application No. 1-128934), but the plant extract focused on the pathogenesis of skin diseases and changes in plasmin activity This is the first report on the antiplasmin activity of a product.
[0008]
Hereinafter, the present invention will be described in detail.
Examples of the plant belonging to the genus Birch used in the present invention include Betula alba L. (birch), Betula leuta L. (North American birch), Betula pendula Roth. (European birch) and the like. Two or more types are used.
[0009]
The antiplasmin agent of the present invention can be obtained by immersing or heating and refluxing any of the leaves, bark, xylem of a plant belonging to the genus Birch, or a mixture with an extraction solvent, followed by filtration and concentration. As the extraction solvent, any solvent can be used as long as it is usually used for extraction. For example, alcohols such as methanol and ethanol, organic solvents such as water-containing alcohol, acetone and ethyl acetate are used alone or in combination. Can do. In addition, an extract obtained by using the above-mentioned solvent and applying a treatment such as partitioning or purification such as chromatography can also be used.
[0010]
The antiplasmin agent of the present invention is mainly used as an external preparation, and the amount of the extract of the plant belonging to the genus Birch in that case is 0.005 to 20.0% by weight, preferably 0 as a dry product in the total amount of the external preparation. 0.01 to 10.0% by weight. If it is less than 0.005% by weight, the effect referred to in the present invention is not sufficiently exhibited, and if it exceeds 20.0%, it is difficult to make a preparation, which is not preferable. Moreover, even if it mix | blends 10.0 weight% or more, the improvement of the big effect is not seen.
[0011]
In addition to the above essential components, the anti-plasmin agent of the present invention is generally used for skin external preparations such as cosmetics and pharmaceuticals, for example, whitening agents, moisturizers, antioxidants, oily components, UV absorbers, surface active agents. Agents, thickeners, alcohols, powder components, color materials, aqueous components, water, various skin nutrients, and the like can be appropriately blended as necessary.
[0012]
Others, disodium edetate, trisodium edetate, sodium citrate, sodium polyphosphate, sodium metaphosphate, sequestering agents such as gluconic acid, caffeine, tannin, verapamil, tranexamic acid and its derivatives, licorice extract, grabrizine , Hot water extract of karin fruit, various herbal medicines, drugs such as tocopherol acetate, glycyrrhizic acid and its derivatives or salts thereof, whitening agents such as vitamin C, magnesium ascorbate phosphate, glucoside ascorbate, arbutin, kojic acid, Sugars such as glucose, fructose, mannose, sucrose, trehalose and the like can be appropriately blended.
[0013]
The antiplasmin agent of the present invention can be applied in any form as long as it is conventionally used for an external preparation for skin, such as ointment, cream, emulsion, lotion, pack, bath preparation, etc., and the dosage form is not particularly limited. .
[0014]
【Example】
The following examples further illustrate the present invention. In addition, this invention is not limited by this. The blending amount is% by weight.
Prior to the examples, the test method and the evaluation criteria for the antiplasmin activity and the skin improvement effect (actual use test) of the extract of the plant belonging to the genus Birch of the present invention will be described.
[0015]
1. Antiplasmin test (1) Sample preparation
Betula alba L. bark 50 g (wet weight) was immersed in 5 times the amount of ethanol at room temperature for 1 week, and the extract was concentrated to dryness. This solid was dissolved in dimethyl sulfoxide (DMSO) to make a 3% solution. The following experiment was conducted using this.
[0016]
(2) Measurement of antiplasmin activity The percent inhibition was determined by the fibrin plate method. That is, 6 ml of veronal buffer solution containing 25% plasminogen-removed fibrinogen (25 mM sodium barbitalate aqueous solution containing 0.125 M NaOH, pH 7.4) is poured into a 9 cmφ petri dish, and 1.0 M CaCl 2 is added thereto. 0.2 ml and 0.1 ml of 25 U / ml thrombin were added and mixed gently and left for 1 hour. On a plate formed by changing fibrinogen to fibrin, a mixture obtained by mixing 5 U / ml of plasmin and a test substance in a ratio of 29: 1 was incubated at 37 ° C. for 10 minutes, and then 20 μl was added. And left for 18 hours. As a control, the same operation was performed using DMSO instead of the test sample, and then the area of the dissolution circle formed by dissolving fibrin was measured, and the plasmin inhibition rate was determined by the following formula (1). The results are shown in Table 1.
[0017]
[Expression 1]
Inhibition rate (%) = 1- (dissolution circle area of test sample / dissolution circle area of control) (1)
[0018]
As a reference example, the same test as described above was performed on an ethanol extract of Phellodendron amurense Ruprecht, which is a plant that has anti-inflammatory and astringent effects and is already known to be applied to rough skin. The results are also shown in Table 1.
[0019]
[Table 1]
Figure 0004215135
[0020]
As can be seen from Table 1, the birch extract has a significantly superior antiplasmin activity compared to the prunus extract.
[0021]
2. Actual use test (1) Improvement effect test for razor loss The effect of the antiplasmin agent according to the present invention applied to the skin was evaluated from the improvement rate against razor loss and skin irritation. The results are shown in Table 2.
In addition, as shown in Table 2, as a sample, two types of lotions in which the concentration of 50% ethanol extract of birch bark (Betula alba L.) was changed as a product of the present invention, and applied to rough skin as a comparative product. A lotion formulated with a known 50% ethanol extract of Psyllium and a lotion excluding birch extract and Psyllium extract was used.
[0022]
(1) Improvement rate against razor loss 40 male panel members losing razors were divided into 4 groups of 10 each, and immediately after shaving, the product of the present invention or comparative product shown in Table 2 was applied to determine the effect on razor loss. Judgment criteria and evaluation were as follows.
[0023]
(Criteria for improvement effect against razor loss)
Remarkable: The loss of razor loss.
Effective: A weaker razor.
Slightly effective: Razor loss is slightly weaker.
Invalid: No change in razor loss.
[0024]
(Evaluation of improvement effect against razor loss)
(Double-circle): The ratio (effective rate) by which a test subject shows remarkable efficacy, effectiveness, and some effectiveness is 80% or more.
○: The ratio (effective rate) in which the subject exhibits remarkable, effective and slightly effective (effective rate) is 50% or more and less than 80%.
(Triangle | delta): The ratio (effective rate) by which a test subject is effective, effective, and somewhat effective is 30% or more and less than 50%.
X: The ratio (effective rate) which a test subject shows markedly effective, effective, and a little effective is less than 30%.
[0025]
(2) Skin irritation In determining the improvement rate against the above-mentioned razor loss, the skin irritation of the product of the present invention and the comparative product was determined and evaluated. The evaluation criteria were as follows.
[0026]
(Evaluation of skin irritation)
(Double-circle): The ratio of the test subject who tinged the skin was 0%.
○: The percentage of subjects who had a tingling sensation on the skin was less than 5%.
(Triangle | delta): The ratio of the test subject who recognized the irritation on skin is less than 10%.
X: The ratio of the test subject who recognized the irritation on the skin is 10% or more.
[0027]
[Table 2]
Figure 0004215135
[0028]
As is apparent from Table 2, the lotion of the present invention containing 1.0% or more of birch extract shows an improvement effect with respect to razor losing, and also has skin irritation than the comparative lotion. I couldn't.
[0029]
(2) Actual use test by replica method Using the lotions of the present invention products 1 and 2 and comparative products 1 and 2, a skin roughness improvement effect test was conducted on a human body panel. That is, the skin surface morphology of a healthy female person (face) was taken using a replica method using a millisin resin, and a skin replica was taken and observed with a microscope (17 times). Using the 20 skin roughness evaluations 1 and 2 (skin roughness panel) based on the following criteria from the state of the crest and the peeling of the stratum corneum, the products 1 and 2 of the present invention are applied to the left and right half of the face. The lotions of comparative products 1 and 2 were applied once a day for 2 weeks. Two weeks later, the skin condition was again observed according to the above-described replica method, and evaluated according to the criteria. The results are shown in Table 3.
[0030]
(Replica criteria)
1: Skin groove, disappearance of skin hills, and widening of stratum corneum are observed.
2: The skin groove and the skin hill are unclear, and the stratum corneum is turned up.
3: Skin grooves and hills are observed, but flat.
4: The skin groove and hill are clear.
5: Skin grooves and hills are clear and well-equipped.
[0031]
[Table 3]
Figure 0004215135
[0032]
As can be seen from Table 3, the lotion of the product of the present invention showed a remarkable effect of improving rough skin compared with the lotion of the comparative product.
[0033]
Example 1 Cream (formulation) Weight%
Stearic acid 5.0
Stearyl alcohol 4.0
Isopropyl myristate 18.0
Glycerol monostearate 3.0
Propylene glycol 10.0
Birch (Betula alba L.) ethanol extract 0.05
Caustic potash 0.2
Sodium bisulfite 0.01
Preservative Appropriate amount of perfume Appropriate amount of ion-exchanged water Residue (Process)
Propylene glycol, birch ethanol extract and caustic potash are added to ion-exchanged water, dissolved, heated and maintained at 70 ° C. (aqueous phase). The other ingredients are mixed, heated and melted, and kept at 70 ° C. (oil phase). The oil phase is gradually added to the aqueous phase, and after the addition is complete, the temperature is maintained for a while to cause the reaction. Thereafter, the mixture is uniformly emulsified with a homomixer and cooled to 30 ° C. while stirring well.
[0034]
Figure 0004215135
(Manufacturing method)
Propylene glycol is added to ion-exchanged water and heated to 70 ° C. (aqueous phase). The other ingredients are mixed, heated and melted, and kept at 70 ° C. (oil phase). Preliminarily emulsify by adding an oil phase to the aqueous phase, uniformly emulsify with a homomixer, and then cool to 30 ° C. while stirring well.
[0035]
Figure 0004215135
(Manufacturing method)
Add soap powder and borax to ion-exchanged water and heat to maintain at 70 ° C. (aqueous phase). The other ingredients are mixed, heated and melted, and kept at 70 ° C. (oil phase). The reaction is gradually added while stirring the oil phase in the aqueous phase. Thereafter, the mixture is uniformly emulsified with a homomixer and cooled to 30 ° C. while stirring well.
[0036]
Figure 0004215135
(Manufacturing method)
Dissolve the carboxyvinyl polymer in a small amount of ion-exchanged water (A phase). Polyethylene glycol 1500 and triethanolamine are added to the remaining ion-exchanged water, and the mixture is heated and dissolved and maintained at 70 ° C. (aqueous phase). The other ingredients are mixed, heated and melted, and kept at 70 ° C. (oil phase). Add the oil phase to the water phase, preliminarily emulsify, add the A phase, uniformly emulsify with a homomixer, and cool to 30 ° C. while stirring well after emulsification.
[0037]
Figure 0004215135
(Manufacturing method)
Propylene glycol is added to ion-exchanged water and heated to 70 ° C. (aqueous phase). The other ingredients are mixed, heated and melted, and kept at 70 ° C. (oil phase). The water phase is gradually added while stirring the oil phase, and the mixture is uniformly emulsified with a homomixer, and then cooled to 30 ° C. while stirring well.
[0038]
Figure 0004215135
(Manufacturing method)
Carbopol 940 is uniformly dissolved in ion-exchanged water, while European birch extract, polyoxyethylene (50 mol) oleyl alcohol ether is dissolved in 95% ethanol and added to the aqueous phase. Next, after adding other components, the mixture is neutralized and thickened with caustic soda and L-arginine.
[0039]
Figure 0004215135
(Manufacturing method)
A phase and B phase are uniformly dissolved, and B phase is added to A phase to solubilize. Next, the phase C in which the birch extract is dispersed is added thereto, followed by filling.
[0040]
【The invention's effect】
As described above, according to the present invention, it is possible to provide an antiplasmin agent having an excellent effect in improving / preventing various skin diseases caused by plasmin, rough skin, and roughness of a healthy person.

Claims (4)

カバノキ属(Betulaceae)に属する植物の抽出物(バーチエキス)からなることを特徴とする抗プラスミン剤。  An antiplasmin agent comprising an extract (birch extract) of a plant belonging to the genus Betulaceae. カバノキ属(Betulaceae)に属する植物が、学名:Betula alba L.(シラカバ)である請求項1記載の抗プラスミン剤。  The antiplasmin agent according to claim 1, wherein the plant belonging to the genus Betulaceae is the scientific name: Betula alba L. (birch). カバノキ属(Betulaceae)に属する植物が、学名:Betula leuta L.(北米産シラカバ)である請求項1記載の抗プラスミン剤。  The antiplasmin agent according to claim 1, wherein the plant belonging to the genus Betulaceae is scientific name: Betula leuta L. (North American birch). カバノキ属(Betulaceae)に属する植物が、学名:Betula pendula Roth.(ヨーロッパシラカバ)である請求項1記載の抗プラスミン剤。  The antiplasmin agent according to claim 1, wherein the plant belonging to the genus Betulaceae is the scientific name: Betula pendula Roth.
JP16505897A 1997-06-06 1997-06-06 Antiplasmin Expired - Fee Related JP4215135B2 (en)

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