JP2005053873A - Elastase inhibitor and composition containing the same - Google Patents

Elastase inhibitor and composition containing the same Download PDF

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JP2005053873A
JP2005053873A JP2003288827A JP2003288827A JP2005053873A JP 2005053873 A JP2005053873 A JP 2005053873A JP 2003288827 A JP2003288827 A JP 2003288827A JP 2003288827 A JP2003288827 A JP 2003288827A JP 2005053873 A JP2005053873 A JP 2005053873A
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elastase
pomegranate
extract
elastase inhibitor
inhibitor
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Joji Yamahara
條二 山原
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SAKAMOTO YAKUSOEN KK
Sakamoto Yakusoen KK
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SAKAMOTO YAKUSOEN KK
Sakamoto Yakusoen KK
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Abstract

<P>PROBLEM TO BE SOLVED: To obtain an elastase inhibitor having high usefulness and produced from an easily available natural material, and a composition containing the inhibitor. <P>SOLUTION: The elastase inhibitor contains powder and/or an extract of the flower of pomegranate (Punica granatum; the family Punicaceae) as an active component. The composition containing the inhibitor is usable as cosmetics, skin care preparations for external use and medicines. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、安全性に優れたエラスターゼ阻害剤および当該エラスターゼ阻害剤を含有する組成物に関するものである。   The present invention relates to an elastase inhibitor excellent in safety and a composition containing the elastase inhibitor.

近年、肌のシワやタルミ(肌の張りや弾力の低下)の発生メカニズムが明らかにされつつあり、エラスチンというタンパク質が、肌の若さ維持に極めて重要な役割を有するとされている。即ち、エラスチンは真皮の構成成分であり、同じく皮膚の構造タンパク質であるコラーゲンを結び付け、肌の張りや弾力性を高め、若々しさを維持するという作用を示す。   In recent years, the generation mechanism of skin wrinkles and tarmi (reduction of skin tension and elasticity) is being clarified, and a protein called elastin is said to have an extremely important role in maintaining skin youth. That is, elastin is a structural component of the dermis and binds collagen, which is also a structural protein of the skin, and exhibits an action of enhancing skin tension and elasticity and maintaining youthfulness.

ところが、紫外線や加齢その他の不明な原因によってエラスチンを分解する酵素(エラスターゼ)が過剰に誘導されると、エラスチンの存在量が減り、肌の若々しさが失われる結果となる。例えば、若者の肌に含まれるエラスチン量は14〜18%であるが、35歳以上になると0.1〜2%まで減少するとのデータもある。従って、皮膚の繊維芽細胞が産生するエラスターゼの活性を阻害すれば、真皮でのエラスチン量を保つことができ、肌のシワやタルミを予防したり改善することが可能になると考えられる。   However, when an enzyme that degrades elastin (elastase) is induced excessively due to ultraviolet rays, aging, or other unknown causes, the amount of elastin is reduced, resulting in the loss of youthfulness of the skin. For example, the amount of elastin contained in the skin of young people is 14-18%, but there is data that it decreases to 0.1-2% when over 35 years old. Therefore, if the activity of elastase produced by skin fibroblasts is inhibited, it is considered that the amount of elastin in the dermis can be maintained, and it becomes possible to prevent or improve skin wrinkles and tarmi.

既に、エラスチンを意識した化粧料の有効成分として、ビタミンAおよびその誘導体(レチノール誘導体)が広く研究されている。例えば特許文献1には、皮膚の老化を予防および改善する化粧料の有効成分としてのレチノール配糖体が開示されている。   Vitamin A and its derivatives (retinol derivatives) have already been extensively studied as active ingredients in cosmetics that are conscious of elastin. For example, Patent Document 1 discloses a retinol glycoside as an active ingredient of a cosmetic that prevents and improves skin aging.

しかし、レチノール誘導体には過剰投与による副作用もよく知られている。例えば、注射時のショックや、ビタミンA過剰症状様の脳神経系,胃腸系,肝臓への悪影響、および脱毛や掻痒感などである。しかも、肌に直接塗布等する化粧料などの場合には、合成化合物ではなく、より刺激の少ない天然由来の有効成分が好ましい。この様な天然由来のエラスターゼ阻害剤としては、ユキノシタの抽出物(特許文献2)や、グァバ葉等の抽出物(特許文献3)などが知られており、これら抽出物はシワの減少等に効果を示す。   However, retinol derivatives are also well known for side effects caused by overdose. For example, shock at the time of injection, adverse effects on the cranial nervous system, gastrointestinal system, liver, and symptoms of excess vitamin A, and hair loss and pruritus. Moreover, in the case of cosmetics that are directly applied to the skin, a naturally occurring active ingredient with less irritation is preferred instead of a synthetic compound. As such naturally-derived elastase inhibitors, extracts of Yukinoshita (Patent Document 2), extracts of guava leaves and the like (Patent Document 3) are known, and these extracts are used to reduce wrinkles and the like. Show the effect.

また、エラスターゼは血中等にも存在し、アルコール性肝障害,胃癌等の癌,急性膵炎等の炎症性疾患などでは、エラスターゼの異常発現が観察されている。例えば非特許文献1には、急性肺障害惹起後の動物では、好中球の活性化に伴って好中球エラスターゼ活性が顕著に上昇し、肺組織を破壊する可能性が考えられている旨が記載されており、急性肺障害の治療薬として好中球エラスターゼ阻害剤(シベレスタット)が開示されている。   Elastase is also present in blood and the like, and abnormal expression of elastase has been observed in alcoholic liver disorders, cancers such as gastric cancer, and inflammatory diseases such as acute pancreatitis. For example, Non-Patent Document 1 suggests that in animals after acute lung injury is induced, neutrophil elastase activity increases significantly with the activation of neutrophils, and there is a possibility that lung tissue may be destroyed. And neutrophil elastase inhibitor (cyberestat) is disclosed as a therapeutic agent for acute lung injury.

この様に、エラスターゼ阻害剤は炎症性疾患等の治療薬となる可能性をも有しているが、安全性等を考慮すれば、やはり合成化学品ではなく天然由来の薬剤が好ましい。   Thus, elastase inhibitors have the potential to be therapeutic agents for inflammatory diseases and the like, but considering safety and the like, naturally derived drugs are preferred instead of synthetic chemicals.

ところで、ザクロ(Punica granatum,ザクロ科)は古来より健康によいとされており、近年では、ザクロ種子中に女性ホルモンであるエストロンが含まれていると話題になっている。また、ザクロは古くから日本でも栽培されており、入手は容易である。しかし、ザクロに含有される活性物質の研究は専ら果実や種子に限られており、ザクロの花に含まれている活性物質に関しては、本発明者によるもの以外は殆どされていないのが実情である。   By the way, pomegranate (Punica granatum, Pomegranateaceae) has been said to be healthier since ancient times, and in recent years it has become a hot topic that estrone, a female hormone, is contained in pomegranate seeds. Pomegranate has been cultivated in Japan for a long time and is easily available. However, research on active substances contained in pomegranates is limited to fruits and seeds, and there is almost no research on active substances contained in pomegranate flowers other than those by the present inventors. is there.

例えば、本発明者は、ザクロ花の血糖降下作用を見出し、これと他植物との併用剤を抗糖尿病剤として特許出願しているが(特許文献4)、ザクロ花とエラスターゼ阻害作用との関係については、従来、全く認識されていなかった。
特開平10−158290号公報(請求項1等) 特開平11−246386号公報(請求項1等) 特開平12−72649号公報(請求項1等) 川▲畔▼和一十,外2名,「日薬理誌」,第122巻,p.151−160,2003年(第151頁の要約)
For example, the present inventor has found a hypoglycemic action of pomegranate flowers, and has applied for a patent as a combination agent with other plants as an antidiabetic agent (Patent Document 4), but the relationship between pomegranate flowers and elastase inhibitory action. Has not been recognized at all.
JP-A-10-158290 (Claim 1 etc.) JP-A-11-246386 (Claim 1 etc.) JP-A-12-72649 (Claim 1 etc.) Kawa ▲ Kazu Kazuo, 2 others, “Nippon Pharmacology”, Vol. 122, p. 151-160, 2003 (summary of page 151)

上述した様に、これまでにも天然由来のエラスターゼ阻害剤は知られていたが、より入手し易く実用性の高いものが求められていた。   As described above, naturally-occurring elastase inhibitors have been known so far, but more easily available and highly practical ones have been demanded.

そこで、本発明が解決すべき課題は、天然由来のエラスターゼ阻害剤およびこれを含有する組成物を提供することにある。   Therefore, the problem to be solved by the present invention is to provide a naturally occurring elastase inhibitor and a composition containing the same.

本発明者は、上記課題を解決すべく、様々な植物についてスクリーニング試験を実施することにより、エラスターゼ阻害活性を示すものを選抜することから始めた。その結果、ツボクサ,カキドウシ,コロハ,沈香などにも活性が認められたが、ザクロ花が最も優れたエラスターゼ阻害活性を示すことを見出して、本発明を完成した。   In order to solve the above-mentioned problems, the present inventor started by selecting those showing elastase inhibitory activity by conducting screening tests on various plants. As a result, the activity was also recognized in centella, oyster cattle, fenugreek, agarwood, etc., but the pomegranate flower was found to exhibit the most excellent elastase inhibitory activity, and the present invention was completed.

即ち、本発明に係るエラスターゼ阻害剤は、ザクロの花の粉末および/または抽出物を有効成分として含有することを特徴とする。   That is, the elastase inhibitor according to the present invention comprises pomegranate flower powder and / or an extract as an active ingredient.

また、本発明のエラスターゼ阻害剤としては、ザクロの花の水および/またはエタノール抽出物を有効成分として含有するものが特に好適である。後述の実施例によって、当該抽出物の高いエラスターゼ阻害活性と安全性が実証されているからである。   Further, as the elastase inhibitor of the present invention, one containing pomegranate flower water and / or ethanol extract as an active ingredient is particularly suitable. It is because the elastase inhibitory activity and safety | security of the said extract are demonstrated by the below-mentioned Example.

また、本発明の組成物は、上記エラスターゼ阻害剤を含有することを特徴とする。   The composition of the present invention contains the elastase inhibitor.

本発明のエラスターゼ阻害剤は、我国で入手し易いザクロ花を原料とする粉末或いは抽出物を含むものであり、後述の実施例で実証している通り、極めて高いエラスターゼ阻害活性と安全性を示す。従って、本発明のエラスターゼ阻害剤は、例えば化粧品等としてヒトへ直接塗布したり、また、薬剤として投与することができ、紫外線暴露や疾患等の原因により発現したエラスターゼの活性を阻害し、真皮におけるエラスチンの減少や臓器障害等を抑制することによって、皮膚のシワや特定疾患に伴う症状などを予防および改善することができる。   The elastase inhibitor of the present invention contains a powder or extract made from pomegranate flowers, which are easily available in Japan, and exhibits extremely high elastase inhibitory activity and safety as demonstrated in the examples below. . Therefore, the elastase inhibitor of the present invention can be applied directly to humans as, for example, cosmetics, or can be administered as a drug, and inhibits the activity of elastase expressed by the cause of ultraviolet exposure, disease, etc. Suppression of elastin, organ damage, etc. can prevent and improve skin wrinkles and symptoms associated with specific diseases.

本発明に係るエラスターゼ阻害剤が享有する最大の特徴は、優れたエラスターゼ阻害活性を示す上に、抗原性を示さないなど極めて高い安全性を有する点にある。   The greatest feature of the elastase inhibitor according to the present invention is that it exhibits excellent elastase inhibitory activity and has extremely high safety such as not exhibiting antigenicity.

以下に、斯かる特徴を発揮する本発明の実施形態、及びその効果について説明する。   Hereinafter, embodiments of the present invention that exhibit such characteristics and effects thereof will be described.

本発明のエラスターゼ阻害剤は、ザクロ(Punica granatum,ザクロ科)の花の粉末および/または抽出物を有効成分として含有することを特徴とする。   The elastase inhibitor of the present invention comprises pomegranate (Punica granatum) flower powder and / or an extract as an active ingredient.

「ザクロ」の花は石榴花とも呼ばれ、従来でも、アラビアやインドおよび中国医学では鼻血止めの特効薬として、また、日本でもこれを煎じて眼の洗浄剤として用いる地方があるが、学術的な研究は殆どされていないのが実情である。   “Pomegranate” flowers are also called stalagmite flowers. Traditionally, in Arabian, Indian, and Chinese medicines, there are districts where nosebleeds are used as a specific medicine. The fact is that little research has been done.

本発明で用いられるザクロ花の種類は特に制限されるものではなく、一重や八重などは問わないが、落花する前に花冠部分から取ったものを使用することが好ましい。   The type of pomegranate flower used in the present invention is not particularly limited, and may be single or octal. However, it is preferable to use a pomegranate flower taken from the corolla before falling.

本発明で有効成分としてザクロ花の粉末を使用する場合には、ザクロ花を乾燥した上で粉砕する。この「乾燥」の方法は特に制限されず、例えば日干し,半日干し,陰干し,加熱乾燥,常温乾燥,凍結乾燥,真空乾燥などを挙げることができるが、従来から生薬製造に用いられる日干し、半日干し、陰干しが好ましい。但し、ザクロ花は比較的肉厚であり、日本国内での開花時期は主に梅雨期に当たることから、製品とする前や使用する前には充分に乾燥する必要がある。また、乾燥の程度に関しては、カビの発生を考慮して、水分含有量を5%以内にすることが好ましい。   When pomegranate flower powder is used as an active ingredient in the present invention, the pomegranate flower is dried and pulverized. The method of “drying” is not particularly limited, and examples thereof include sun drying, half sun drying, shade drying, heat drying, room temperature drying, freeze drying, vacuum drying, and the like. , Shade drying is preferred. However, pomegranate flowers are relatively thick, and the flowering time in Japan mainly falls during the rainy season, so it is necessary to dry them thoroughly before using them as products. Regarding the degree of drying, it is preferable to keep the water content within 5% in consideration of mold generation.

「粉末」とするのは、例えば皮膚外用剤とする場合にその作用効果を十分に発揮せしめるためである。従って、皮膚外用剤とする場合にはできるだけ細かく粉砕するとよいが、製造時の利便性を考慮すれば、50〜200メッシュ程度にすることが好ましい。一方、経口剤とする場合にはそのまま経口で飲み下すことができればよく、その粒径は特に制限されない。従って、その粒径は均一である必要はなく、また、約1cm程度のものであってもよい。更に、一般的には「粉末」とはいい得ないものであっても、粒状化しさえすれば「乾燥粉末」となるものも本発明の範囲に含まれる。   The “powder” is used, for example, in order to sufficiently exert its action and effect when used as an external preparation for skin. Therefore, when it is used as an external preparation for skin, it may be pulverized as finely as possible. However, considering the convenience in production, it is preferably about 50 to 200 mesh. On the other hand, when it is used as an oral preparation, it can be taken orally as it is, and its particle size is not particularly limited. Accordingly, the particle size need not be uniform and may be about 1 cm. Furthermore, even if it is generally not possible to say “powder”, it is within the scope of the present invention to become “dry powder” as long as it is granulated.

「抽出物」をザクロ花から抽出する方法は特に限定されるものではなく、例えばザクロ花をそのまま抽出してもよいし、すり潰す等したものから抽出してもよく、また、一旦乾燥したものから抽出してもよい。但し、抽出の効率を考慮すれば、より細かいものから抽出することが好ましい。   The method for extracting the “extract” from the pomegranate flower is not particularly limited. For example, the pomegranate flower may be extracted as it is, or may be extracted from the ground material, or once dried. May be extracted from However, considering the extraction efficiency, it is preferable to extract from a finer one.

抽出するための溶媒としては、主として水系溶媒が使用される。抽出作業の利便性や、水系溶媒から抽出されたものであれば水溶性であるため安全であること、また、溶媒が残留した場合の安全性等を考慮したものである。斯かる水系溶媒としては、例えば、水;メタノール、エタノール、イソプロパノール、t-ブチルアルコール等の低級アルコール;水と低級アルコールとの混合溶媒を挙げることができ、安全性を考慮すれば、水,エタノール,または水とエタノールとの混合溶媒が好ましい。   As the solvent for extraction, an aqueous solvent is mainly used. This is in consideration of the convenience of extraction work, safety if it is extracted from an aqueous solvent because it is water-soluble, and safety when the solvent remains. Examples of such aqueous solvents include water; lower alcohols such as methanol, ethanol, isopropanol, and t-butyl alcohol; mixed solvents of water and lower alcohols. Or a mixed solvent of water and ethanol is preferred.

使用する溶媒量は、抽出素材が乾燥したものであれば素材質量の2〜50倍、乾燥したものでなければ0.5倍〜30倍が一般的である。また、抽出温度も特に制限されないが、有効成分が熱分解する可能性を考慮すれば、室温で行なうことが好ましい。   The amount of the solvent to be used is generally 2 to 50 times the mass of the material if the extracted material is dried, and 0.5 to 30 times if the extracted material is not dried. The extraction temperature is not particularly limited, but it is preferably performed at room temperature in consideration of the possibility that the active ingredient is thermally decomposed.

抽出時間は特に制限されないが、1日から10日間が好ましい。また、抽出の際には静置したままでもよいし、攪拌してもよい。   The extraction time is not particularly limited, but is preferably 1 day to 10 days. In addition, the extraction may be left standing or stirred.

抽出終了後の処理は、常法に従う。例えば、濾過後に残渣を使用溶媒で洗浄し、濾液と合わせた後、溶媒を減圧や加熱により留去すればよい。但し、過剰な加熱は好ましくなく、好適には室温〜50℃程度で減圧濃縮する。   The processing after the completion of extraction follows a conventional method. For example, after filtration, the residue is washed with the solvent used, and after combining with the filtrate, the solvent may be distilled off under reduced pressure or heating. However, excessive heating is not preferred, and it is preferably concentrated under reduced pressure at room temperature to about 50 ° C.

こうして得られた粉末および抽出物は、一般的には、適量の添加成分を加えて組成物とした上で化粧品,皮膚外用剤や薬剤等とする。当該組成物はエラスターゼ阻害活性を示すことから、紫外線による刺激等を原因とするエラスチンの減少を抑制して肌のシワやタルミの発生を予防或いは改善したり、また、特定疾患を治療できるものとして有用である。斯かる添加成分の種類は特に制限されないが、例えば、ミツロウやサラシミツロウ,ワセリン,パラフィン,マクロゴール,ラノリン等の軟膏或いは硬膏基剤,その他の基剤,香料,防腐剤,色素類,ビタミン類,賦形剤,界面活性剤,保湿剤,抗酸化剤,紫外線吸収剤などを挙げることができる。   The powders and extracts thus obtained are generally used as cosmetics, external preparations for skin, drugs, etc. after adding an appropriate amount of additive components to make a composition. Since the composition exhibits elastase inhibitory activity, it is possible to prevent or improve the occurrence of wrinkles and tarmi on the skin by suppressing the decrease in elastin caused by stimulation by ultraviolet rays, etc., or to treat specific diseases Useful. The kind of the additive component is not particularly limited. For example, beeswax, beeswax wax, petrolatum, paraffin, macrogol, lanolin, or other ointment or plaster base, other bases, fragrances, preservatives, pigments, vitamins , Excipients, surfactants, humectants, antioxidants, UV absorbers and the like.

上記組成物中に含まれるエラスターゼ阻害剤の含有量は、エラスターゼ阻害剤がザクロ花の粉末であるか或いは抽出物であるか、また、組成物の使用目的(化粧品であるか、薬剤とするか等)などに依存し、特に制限されないが、例えば、ザクロ花粉末の場合は0.1〜5.0質量%,抽出物の場合は0.03〜1.5質量%とすることができる。   The content of the elastase inhibitor contained in the above composition depends on whether the elastase inhibitor is a pomegranate flower powder or an extract, and whether the composition is used (cosmetic or pharmaceutical). For example, in the case of pomegranate flower powder, it can be 0.1 to 5.0% by mass, and in the case of an extract, it can be 0.03 to 1.5% by mass.

本発明において、エラスターゼの阻害活性を示す成分は特定されていない。しかしながら、斯かる有効成分は1つではなく、複数の有効成分が相加的に若しくは相乗的に相互作用することによって、優れたエラスターゼ阻害活性を発揮している可能性がある。   In the present invention, no component showing elastase inhibitory activity is identified. However, the number of such active ingredients is not one, and it is possible that a plurality of active ingredients interact with each other additively or synergistically to exhibit excellent elastase inhibitory activity.

以下に、実施例を示すことにより本発明を更に詳細に説明するが、本発明の範囲はこれらに限定されるものではない。   Hereinafter, the present invention will be described in more detail with reference to examples, but the scope of the present invention is not limited thereto.

(実施例1) ザクロ花の粉末の製造
落花前のザクロ花を花冠から採取し、天日で2〜3日乾燥した。乾燥ザクロ花の採取直後に対する収率は、約15%であった。また、当該乾燥ザクロ花の水分含有量は、5%以下であった。これを粉砕機にかけ、100〜150メッシュの粉末とした。
(Example 1) Production of pomegranate flower powder The pomegranate flower before declining was collected from the corolla and dried in the sun for 2-3 days. The yield immediately after collection of the dried pomegranate flower was about 15%. Moreover, the moisture content of the dried pomegranate flower was 5% or less. This was applied to a pulverizer to obtain a powder of 100 to 150 mesh.

(実施例2) ザクロ花の抽出物の製造
ザクロ花100gを粗切りし、これに50%エタノール水を2L加え、時々振り混ぜつつ8日間室温で放置した。その後、濾過により不溶成分を濾別し、得られた濾液を45℃以下で減圧濃縮した。これをデシケーター内で乾燥させたところ、ザクロ花の抽出物35gが得られた。
(Example 2) Production of extract of pomegranate flower 100 g of pomegranate flower was roughly cut, 2 L of 50% ethanol water was added thereto, and the mixture was allowed to stand at room temperature for 8 days with occasional shaking. Thereafter, insoluble components were separated by filtration, and the obtained filtrate was concentrated under reduced pressure at 45 ° C. or lower. When this was dried in a desiccator, 35 g of a pomegranate flower extract was obtained.

(実施例3) エラスターゼ阻害活性の測定
実施例2で得たザクロ花の抽出物を100mM トリス・塩酸バッファー(pH7.5)に溶解し、0.3〜16.0μg/mlの試験溶液を調製した。この際、溶解し難い場合には、10%以内でDMSOを添加した。
Example 3 Measurement of Elastase Inhibitory Activity The pomegranate flower extract obtained in Example 2 was dissolved in 100 mM Tris / HCl buffer (pH 7.5) to prepare a test solution of 0.3 to 16.0 μg / ml. did. At this time, if it was difficult to dissolve, DMSO was added within 10%.

この試験溶液とヒト白血球由来エラスターゼ溶液(シグマ社製,100mMトリスバッファーpH7.5に溶解,約10mM単位)50μlを混合し、37℃で5分間予加温した。尚、対照として、当該エラスターゼ溶液に100mMトリス・塩酸バッファーとDMSOを加えたのみの混合液も、同様に処理した。   This test solution and human leukocyte-derived elastase solution (manufactured by Sigma, dissolved in 100 mM Tris buffer pH 7.5, about 10 mM unit) were mixed and pre-warmed at 37 ° C. for 5 minutes. As a control, a mixture obtained by adding 100 mM Tris / HCl buffer and DMSO to the elastase solution was treated in the same manner.

次に、基質としてN-サクシニル-トリアラニル-p-ニトロアニリドを含む溶液(基質を最小量のDMSOに溶解し、100mM トリス・塩酸バッファーpH7.5を加えて700μlMとしたもの)50μlを各試験溶液に加え、反応を開始させた。エラスターゼの作用によって遊離してくるニトロアニリンを、分光光度計(Model 450 Microplate Reader)を用いて405nm波長光として1分,3分,5分および7分の時点で測定し、IC50値を求め、エラスターゼ阻害活性を計算した。結果を図1に示す。 Next, 50 μl of a solution containing N-succinyl-trialanyl-p-nitroanilide as a substrate (dissolving the substrate in a minimum amount of DMSO and adding 100 mM Tris-HCl buffer pH 7.5 to 700 μl M) is added to each test solution. In addition to starting the reaction. Nitroaniline released by the action of elastase is measured at 1 min, 3 min, 5 min and 7 min as a 405 nm wavelength light using a spectrophotometer (Model 450 Microplate Reader) to obtain an IC 50 value. The elastase inhibitory activity was calculated. The results are shown in FIG.

当該結果より、ザクロ花の抽出物が示すエラスターゼ阻害活性のIC50値は約2μg/mlであり、本発明に係る抽出物の極めて高いエラスターゼ阻害活性が実証された。 From the results, the IC 50 value of the elastase inhibitory activity exhibited by the pomegranate flower extract was about 2 μg / ml, demonstrating the extremely high elastase inhibitory activity of the extract according to the present invention.

(実施例4) 安全性試験(マウスに対する急性毒性試験)
dd-Y系雄性マウスを1群6匹とし、実施例2で得たザクロ花エキスを物理的に投与可能な2000mg/kg体重まで経口投与した。その後、餌と水を自由に与え、1週間にわたり外観の変化や生死の観察をしたが、死亡例や異常は全く見られなかった。従って、本発明に係るザクロ花抽出物は、高い安全性を示すことが明らかにされた。
(Example 4) Safety test (acute toxicity test on mice)
A group of 6 dd-Y male mice was orally administered to the 2000 mg / kg body weight of the pomegranate flower extract obtained in Example 2 which can be physically administered. Thereafter, food and water were given freely, and changes in appearance and life and death were observed over a week, but no deaths or abnormalities were found. Therefore, it was clarified that the pomegranate flower extract according to the present invention shows high safety.

(実施例5) 抗原性試験(Schultz-Dale試験)
ハートレー系雄性モルモット(体重:約800g)に、実施例2で得たザクロ花エキスを用量500mg/kg体重で経口投与した。投与後20時間で屠殺し、気管支を摘出して周辺の脂肪組織を丁寧に除去して気管支のラセン標本(幅:約2mm)を作成した。これをMagnus槽に装着し、10−5Mの塩酸ヒスタミンで収縮させた上で十分に洗浄する操作を2回繰り返して安定化した後、ザクロ花エキスを50μg/ml添加したが、収縮反応は全く認められなかった。また、更にザクロ花エキスを増量して100μg/mlとして試験したが、やはり変化は全くなかった。
(Example 5) Antigenicity test (Schultz-Dale test)
The pomegranate flower extract obtained in Example 2 was orally administered to a Hartley male guinea pig (body weight: about 800 g) at a dose of 500 mg / kg body weight. Twenty hours after the administration, the bronchi was removed and the surrounding adipose tissue was carefully removed to prepare a bronchial spiral specimen (width: about 2 mm). This was attached to a Magnus tank, and after it was stabilized by repeating twice the washing with 10 −5 M histamine hydrochloride and thoroughly washing, pomegranate flower extract was added at 50 μg / ml. It was not recognized at all. Further, the pomegranate flower extract was further increased and tested at 100 μg / ml, but there was no change at all.

当該結果より、本発明に係るザクロ花エキスには抗原性はなく、アナフィラキシーショック等を起こす可能性は極めて少ないことから、安全性が高いことが証明された。   From the results, it was proved that the pomegranate flower extract according to the present invention has high antigenicity and is very unlikely to cause anaphylactic shock and the like.

(実施例6) 製剤例
実施例1で得られたザクロ花の粉末および実施例2で得られたザクロ花の抽出物は、例えば表1に示す配合により皮膚外用剤とすることができる(単位はg)。
(Example 6) Formulation example The pomegranate flower powder obtained in Example 1 and the pomegranate flower extract obtained in Example 2 can be used as a skin external preparation, for example, according to the formulation shown in Table 1 (units). G).

具体的には、ザクロ花の粉末または抽出物を秤量して乳鉢にとり、精製ラノリン25gを加えてよく攪拌する。更に残量の精製ラノリンや他の基剤を加えて室温で攪拌混合し、均一な軟膏を得た。   Specifically, a pomegranate flower powder or extract is weighed and placed in a mortar, and 25 g of purified lanolin is added and stirred well. Further, the remaining amount of purified lanolin or other base was added and stirred and mixed at room temperature to obtain a uniform ointment.

本発明に係るザクロ花抽出物のエラスターゼ阻害活性の測定結果を示す図The figure which shows the measurement result of the elastase inhibitory activity of the pomegranate flower extract which concerns on this invention

Claims (3)

ザクロ(Punica granatum,ザクロ科)の花の粉末および/または抽出物を有効成分として含有することを特徴とするエラスターゼ阻害剤。   An elastase inhibitor comprising pomegranate (Punica granatum) flower powder and / or an extract as an active ingredient. ザクロの花の水および/またはエタノール抽出物を有効成分として含有することを特徴とするエラスターゼ阻害剤。   An elastase inhibitor comprising pomegranate flower water and / or ethanol extract as an active ingredient. 請求項1または2に記載のエラスターゼ阻害剤を含有することを特徴とする組成物。   A composition comprising the elastase inhibitor according to claim 1 or 2.
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JP2008127373A (en) * 2006-11-24 2008-06-05 Koei Kogyo Kk Estrogen-like composition
JP2009263279A (en) * 2008-04-25 2009-11-12 Oriza Yuka Kk Elastase inhibitor
JP2010013442A (en) * 2008-06-04 2010-01-21 Maruzen Pharmaceut Co Ltd Hair growth regulating agent and skin cosmetic for hair growth regulation
JP2010095459A (en) * 2008-10-15 2010-04-30 Kinki Univ Fat accumulation- or metabolism-ameliorating agent, anti-tnf-alpha agent and new triterpene compound
JP2011116727A (en) * 2009-12-07 2011-06-16 Maruzen Pharmaceut Co Ltd Hair growth inhibitor composition
US20140377390A1 (en) * 2013-06-24 2014-12-25 Caster Cosmetic Compositions Comprising Plant Extracts for Combating Skin Aging
WO2021176707A1 (en) 2020-03-06 2021-09-10 ビーエイチエヌ株式会社 Oral composition for inhibiting elastase and use thereof, elastase inhibitor, and method for inhibiting elastase activity by oral intake of elastase inhibitor

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JPH11106311A (en) * 1997-07-31 1999-04-20 Sansho Seiyaku Co Ltd Hyaluronidase activity inhibitor and its use
JPH11116492A (en) * 1997-07-31 1999-04-27 Sansho Seiyaku Co Ltd Melanin formation inhibitor and its use
JP2002020308A (en) * 2000-07-03 2002-01-23 Sakamoto Yakusoen:Kk Antidiabetic
JP2003012529A (en) * 2001-06-26 2003-01-15 Takama:Kk Antidiabetic agent and diet agent

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JPH11106311A (en) * 1997-07-31 1999-04-20 Sansho Seiyaku Co Ltd Hyaluronidase activity inhibitor and its use
JPH11116492A (en) * 1997-07-31 1999-04-27 Sansho Seiyaku Co Ltd Melanin formation inhibitor and its use
JP2002020308A (en) * 2000-07-03 2002-01-23 Sakamoto Yakusoen:Kk Antidiabetic
JP2003012529A (en) * 2001-06-26 2003-01-15 Takama:Kk Antidiabetic agent and diet agent

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008127373A (en) * 2006-11-24 2008-06-05 Koei Kogyo Kk Estrogen-like composition
JP2009263279A (en) * 2008-04-25 2009-11-12 Oriza Yuka Kk Elastase inhibitor
JP2010013442A (en) * 2008-06-04 2010-01-21 Maruzen Pharmaceut Co Ltd Hair growth regulating agent and skin cosmetic for hair growth regulation
JP2010095459A (en) * 2008-10-15 2010-04-30 Kinki Univ Fat accumulation- or metabolism-ameliorating agent, anti-tnf-alpha agent and new triterpene compound
JP2011116727A (en) * 2009-12-07 2011-06-16 Maruzen Pharmaceut Co Ltd Hair growth inhibitor composition
US20140377390A1 (en) * 2013-06-24 2014-12-25 Caster Cosmetic Compositions Comprising Plant Extracts for Combating Skin Aging
WO2021176707A1 (en) 2020-03-06 2021-09-10 ビーエイチエヌ株式会社 Oral composition for inhibiting elastase and use thereof, elastase inhibitor, and method for inhibiting elastase activity by oral intake of elastase inhibitor

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