JP4091145B2 - Antiandrogen composition - Google Patents
Antiandrogen composition Download PDFInfo
- Publication number
- JP4091145B2 JP4091145B2 JP19506397A JP19506397A JP4091145B2 JP 4091145 B2 JP4091145 B2 JP 4091145B2 JP 19506397 A JP19506397 A JP 19506397A JP 19506397 A JP19506397 A JP 19506397A JP 4091145 B2 JP4091145 B2 JP 4091145B2
- Authority
- JP
- Japan
- Prior art keywords
- citral
- acid
- reductase
- androgen
- geranium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 230000001256 tonic effect Effects 0.000 description 1
- 229960000716 tonics Drugs 0.000 description 1
- 231100000820 toxicity test Toxicity 0.000 description 1
- 229960003500 triclosan Drugs 0.000 description 1
- 210000003708 urethra Anatomy 0.000 description 1
- 235000019165 vitamin E Nutrition 0.000 description 1
- 229940046009 vitamin E Drugs 0.000 description 1
- 239000011709 vitamin E Substances 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
- 229940043810 zinc pyrithione Drugs 0.000 description 1
- PICXIOQBANWBIZ-UHFFFAOYSA-N zinc;1-oxidopyridine-2-thione Chemical compound [Zn+2].[O-]N1C=CC=CC1=S.[O-]N1C=CC=CC1=S PICXIOQBANWBIZ-UHFFFAOYSA-N 0.000 description 1
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- Cosmetics (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Description
【0001】
【発明の属する技術分野】
本発明は、抗男性ホルモン剤原料及び組成物に関し、その目的は、脱毛やにきびの予防及び治療に有効で、また、場合によっては良性前立腺過形成の治療にも用いることができ、しかも天然物由来で安全性の高い抗男性ホルモン剤原料及び組成物を提供することにある。
【0002】
【従来の技術】
男性ホルモンであるテストステロンの作用機構は複雑であり、本来のホルモンとして作用するだけでなく、プロホルモンとしても作用する。つまり、テストステロンは生体内で、還元酵素である5α−レダクターゼにより還元され、活性型男性ホルモンであるジヒドロテストステロン(以下、DHTと称す)となり、このDHTもまた種々のホルモン作用を有する。
DHTの主なホルモン作用としては、毛母細胞への栄養供給を阻害して脱毛を促進する作用、にきびを発生させる作用があり、その他に良性前立腺過形成を強く刺激する作用もあると言われている。
【0003】
これらの見地から、テストステロンをDHTに代謝する還元酵素5α−レダクターゼの活性を阻害することにより、脱毛やにきびの予防及び治療、また良性前立腺過形成の治療が可能であると考えられている。
尚、上記した良性前立腺過形成とは、前立腺の中葉の成長のことで、これにより尿道が圧迫され塞ぎはじめる。良性前立腺過形成の治療としては、前立腺の全部または一部の外科的切除が最も有効とされているが、最近では、5α−レダクターゼの活性阻害体が良性前立腺過形成の治療に導入されている。
【0004】
上記した還元酵素5α−レダクターゼの活性阻害物質としては、従来より2−メチル−5−イソプロペニルシクロヘキセン−3−オン(以下、l−カルボンと称す)が一般に用いられている。
【0005】
【発明が解決しようとする課題】
しかしながら、上記したl−カルボンは、その含有率が低いとき、5α−レダクターゼの活性を阻害する効果が著しく低下するという問題点が存在する。
一方、l−カルボンの含有率を高くすると、その効果は高くなるが、l−カルボン特有の香りが強くなりすぎたり、また、粘稠性があるため、化粧品等に添加すると、その使用感が悪くなるという問題点が生じ、l−カルボンの使用量を多量とすることも、少量とすることもいずれも好ましくなかった。
そこで、低含有率でも優れた5α−レダクターゼの活性阻害効果を発揮する抗男性ホルモン剤原料及び抗男性ホルモン剤組成物の創出が望まれていた。
【0006】
【課題を解決するための手段】
本発明は上記問題点を解決するためになされたものであって、請求項1に係る発明は、次式3(化3)で示されるシトラール及び/又は次式4(化4)で示されるゲラニウム酸からなる抗男性ホルモン剤原料が含有されてなる化粧品、医薬品あるいは医薬部外品であることを特徴とする抗男性ホルモン剤組成物に関する。
【化3】
【化4】
【0007】
【発明の実施の形態】
本発明者は、シトラール及びゲラニウム酸が、5α−レダクターゼの活性阻害能を有することを見出し、本発明を完成するに至った。即ち、本発明においては、シトラール及び/又はゲラニウム酸を抗男性ホルモン剤原料とする。尚、後記実施例において、シトラール及びゲラニウム酸が優れた活性阻害能を有することをより明確にする。
【0008】
シトラールとは、レモンの香気を持つ種々の精油中に存在する物質で、例えば、レモングラス油、レモン油、マンダリン油等に存在し、特に、レモングラス油には多く存在する(70〜80%)。このシトラールは、次式5(化5)で示され、2つの立体異性体(シス型及びトランス型)が存在する。尚、天然物としてのシトラールは、この2つの異性体の混合物で、混合率はトランス型が80〜90%、シス型が10〜20%である。
【化5】
【0009】
天然物としてのシトラールを上記レモングラス油から得る場合、まず、葉茎を刈り取ったレモングラス(Cymbopogon flexuous (D.C.) Staps) を水に浸漬して加熱し、その後水蒸気蒸留を行うことによりレモングラス油を得る。その後、このレモングラス油を分留することにより得ることができる。
【0010】
シトラールは、上述したように、レモングラス油等の精油を分留することにより得ることができるが、工業的にはゲラニオール又はネロールを金属銅上で接触空気酸化することにより製造される。
また、ゲラニオール合成反応の中間物質であるデヒドロリナロールを異性化することにより、或いは同じくゲラニオール合成反応の中間物質であるミルセンを異性化したのち加水分解することにより得ることもできる。
【0011】
ゲラニウム酸は上記シトラールを酸化銀で酸化することにより得られる物質で、次式6(化6)で示される。
【化6】
【0012】
本発明においては、上記シトラール及びゲラニウム酸を単独で、或いは混合して抗男性ホルモン剤原料とすることができる。混合して使用する場合、その混合比は特に限定されない。
【0013】
抗男性ホルモン剤組成物中のシトラール及び/又はゲラニウム酸の配合量は、組成物中0.01〜10重量%が好ましいが、特に限定はされない。0.01重量%未満ではシトラール及び/又はゲラニウム酸による効果が十分発揮されず、また10重量%を超えてもそれ以上の効果は期待できず、いずれの場合も好ましくないからである。
【0014】
上記抗男性ホルモン剤原料を含有する抗男性ホルモン剤組成物は化粧品、医薬部外品あるいは医薬品として用いることができる。例えば、育毛・養毛を目的とするヘアトニック、ヘアクリーム、ヘアトリートメント等の化粧品、にきびの予防、しみ、そばかすの緩和等特定の使用目的を有した化粧用クリーム、乳液等の化粧品或いは薬用化粧品(医薬部外品)、更には、にきびや良性前立腺過形成の治療を目的とした医薬品として用いることができる。
医薬品として使用する場合には、1mg〜1000mg/日を2〜3回に分けて施用すればよい。
【0015】
本発明に係る抗男性ホルモン剤組成物には、上記抗男性ホルモン剤原料以外に、以下のような物質が適宜配合される。
例えば、育毛・養毛成分として、ビタミンE及びその誘導体、センブリエキス、ニンニクエキス、セファランチン、塩化カルプロニウム、アセチルコリン等の血行促進剤、トウガラシチンキ、カンタリスチンキ、ショウキョウチンキ、ノニル酸バニルアミド等の局所刺激剤、サリチル酸、レゾルシン、乳酸などの角質溶解剤、プラセンタエキス、ペンタデカン酸グリセリド、パントテニルエチルエーテル、ビオチン、ヒノキチオール、アラントイン等の代謝賦活剤、グリチルリチン酸、グリチルレチン酸等の消炎剤、イソプロピルメチルフェノール、トリクロサン、ジンクピリチオン、ヒノキチオール等の殺菌剤、メントール、カンフル等の清涼剤、その他女性ホルモン等が適宜配合される。
また、アスコルビン酸やその誘導体、イオウ製剤、グルタチオン等の美白剤、或いは保湿剤、紫外線吸収剤、ビタミン類等、通常使用されている公知の添加剤を適宜配合することもできる。
【0016】
更に、本発明の効果を損なわない範囲で、アルコ−ル、多価アルコール、水溶性高分子、酸化防止剤、pH調整剤、紫外線防止剤、金属イオン封鎖剤、増粘剤、界面活性剤、精製水、香料、防腐剤、抗菌剤、油剤、高級脂肪酸、脂肪酸エステル、保湿剤、清涼剤、色素等の通常の化粧品成分、或いはホルモン類、ビタミン類、アミノ酸類、収れん剤及び胎盤抽出物、エラスチン、コラーゲン、ムコ多糖、アロエ抽出物、ヘチマ水、ローヤルゼリー、バーチ、ニンジンエキス、カモミラエキス、甘草エキス、サルビアエキス、アルテアエキス、セイヨウノコギリソウエキス等の生薬成分をはじめとする動植物抽出成分等特殊配合成分を、目的に応じて適宜任意に配合してもよい。
【0017】
本発明に用いられるシトラール及びゲラニウム酸は天然物を由来としており、安全性の高い物質である。以下、シトラール及びゲラニウム酸についての試験結果に基づいて、シトラール及びゲラニウム酸の安全性について説明する。
毒性試験として、ラット、マウス、ウサギを用いて、シトラール及びゲラニウム酸の50%致死量(LD50)を調べた。シトラールについての結果を表1に、ゲラニウム酸についての結果を表2に示す。
【表1】
【表2】
【0018】
次に、刺激性試験について説明する。シトラール及びゲラニウム酸をヒト、ウサギ、ブタ、ギニアピッグの皮膚に塗布した後1〜2日放置し、肌の状態を調べて以下の基準で評価した。
○;非常に滑らかな状態である。
△;一部に肌荒れが起きている。
×;刺激性が強く全体に肌荒れがおきている。
シトラールについての結果を表3に、ゲラニウム酸についての結果を表4に示す。
【表3】
【表4】
【0019】
また、シトラールの生殖試験として、妊娠前及び妊娠後のラットを用い、胎児に異常が起こる最小投与量(TDL0 )を調べた。結果を表5に示す。
【表5】
【0020】
更に、シトラールの変異原性試験として、枯草菌を用いて、DNA複製の際の塩基配列の変化を調べた結果、塩基配列に変化が起こる最小投与量は2222μg/discであった。
【0021】
上記試験結果から、シトラール及びゲラニウム酸は安全性の高い物質であると言える。
【0022】
【実施例】
以下、本発明を実施例及び比較例に基づき詳細に説明する。但し、本発明はこれらの実施例に限定されるものではない。
(実施例1〜3及び比較例1)
シトラールの標準品(和光純薬製)を実施例1、ゲラニウム酸の標準品(Fluka製)を実施例2、シトラールとゲラニウム酸を3:1の割合で混合したものを実施例3、l−カルボン(和光純薬製)を比較例1の試料とし、以下に記す試験方法に基づき5α−レダクタ−ゼを触媒とするテストステロンをDHTに代謝する酵素反応の阻害率を調べた。
【0023】
(試験方法)
テストステロン−5α−レダクタ−ゼ液として、ラット肝臓のホモジネ−トの9000×g上清画分(以下、S−9と称す)を用いた。
また、試験に用いるテストステロンとしては、0.576mg/mlのテストステロン−プロピレングリコ−ル溶液1.5mlに、1mg/mlのβ−NADPH/5mM−Tris−HCl緩衝液を5.0ml加えた溶液(以下、溶液Aと称す)を準備した。
【0024】
実施例1〜3及び比較例1の試料それぞれ7.75mgにエタノール0.25mlを添加して試料溶液とした。前述の溶液A5.0mlにこの試料溶液を添加し、更にS−9を1.0mlずつ加えたものを反応液とした。この時、試料の濃度は反応液中で0.1重量%であった。
同様に、試料の反応液中での濃度が0.001重量%の反応液を得た。
【0025】
上記の反応液を、十分に攪拌したあと、37℃で30分間インキュベートし、その後、ジクロロメタン5.0mlを反応停止剤として添加して反応を止めた。次に、内部標準物質として、5.0mg/mlのプロゲステロン−エタノール溶液を0.1ml加え、十分に攪拌した。攪拌後、ジクロロメタン層を分取し、濃縮した後に、試料中の残留テストステロン、反応生成物であるDHT、アンドロスタンジオールをガスクロマトグラフィーを用いて、定量分析した。このガスクロマトグラフィーによる定量分析の条件は、DB−17をカラムに用い、カラム温度を240℃とした。また、検出はFIDを用いて行った。
【0026】
ガスクロマトグラフィーの各成分のピーク面積から、各成分の化合物量を求め、次式(数1)に基づいて、5α−レダクタ−ゼを触媒とするテストステロンをDHTに代謝する酵素反応の阻害率を算出した。
【数1】
a;検体を添加しないときの残留テストステロン量
b;検体を添加しないときのDHT、アンドロスタンジオールの総量
a’;検体添加時の残留テストステロン量
b’;検体添加時のDHT、アンドロスタンジオールの総量
【0027】
試験結果を表6に示す。
【表6】
【0028】
表6の結果から、シトラール及びゲラニウム酸は、低含有率でも優れた5α−レダクタ−ゼ活性阻害能を発揮することがわかる。
【0029】
以下、本発明に係る抗男性ホルモン剤原料剤配合した抗男性ホルモン剤組成物を示す。
【0030】
【0031】
【0032】
【発明の効果】
以上詳述した如く、請求項1に係る発明は、次式7(化7)で示されるシトラール及び/又は次式8(化8)で示されるゲラニウム酸からなる抗男性ホルモン剤原料が含有されてなる化粧品、医薬品あるいは医薬部外品であることを特徴とする抗男性ホルモン剤組成物に関するものであるから、以下のような効果を奏する。
【化7】
【化8】
【0033】
即ち、シトラール及びゲラニウム酸は低含有率でも優れた5α−レダクタ−ゼ活性阻害能を発揮するため、このシトラール及び/又はゲラニウム酸からなる抗男性ホルモン剤原料は、男性ホルモンであるテストステロンを活性型男性ホルモンであるジヒドロテストステロン(DHT)に代謝する還元酵素である5α−レダクターゼの活性を阻害して、DHTによる脱毛促進や、にきびの発生を抑えることができる。従って、この抗男性ホルモン剤原料が含有されてなる化粧品、医薬品、医薬部外品は、脱毛やにきびの予防や治療に有効で、また、場合によっては良性前立腺過形成の治療にも用いることができるという優れた効果を奏する。また、シトラール及びゲラニウム酸は天然物を由来とする物質であるから、安全性の高い化粧品、医薬品あるいは医薬部外品とすることができる。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a raw material and composition for an anti-androgenic hormone, the purpose of which is effective for the prevention and treatment of hair loss and acne, and in some cases can also be used for the treatment of benign prostatic hyperplasia, and it is a natural product. The object is to provide a raw material and composition of an anti-androgen that is highly safe from origin.
[0002]
[Prior art]
The action mechanism of testosterone, a male hormone, is complex and acts not only as a natural hormone but also as a prohormone. That is, testosterone is reduced in vivo by 5α-reductase, which is a reductase, to become dihydrotestosterone, which is an active male hormone (hereinafter referred to as DHT), and this DHT also has various hormonal actions.
It is said that DHT has the main hormonal action of inhibiting hair supply to hair matrix cells and promoting hair loss, generating acne, and also strongly stimulating benign prostatic hyperplasia. ing.
[0003]
From these viewpoints, it is considered that the prevention and treatment of hair loss and acne and the treatment of benign prostatic hyperplasia are possible by inhibiting the activity of the reductase 5α-reductase that metabolizes testosterone to DHT.
The benign prostatic hyperplasia described above is the growth of the middle lobe of the prostate, which causes the urethra to be compressed and begins to close. The most effective treatment for benign prostatic hyperplasia is surgical excision of all or part of the prostate. Recently, an inhibitor of 5α-reductase activity has been introduced to treat benign prostatic hyperplasia. .
[0004]
Conventionally, 2-methyl-5-isopropenylcyclohexen-3-one (hereinafter referred to as l-carvone) has been generally used as the above-mentioned activity inhibitor of reductase 5α-reductase.
[0005]
[Problems to be solved by the invention]
However, the above-mentioned l-carvone has a problem that when the content is low, the effect of inhibiting the activity of 5α-reductase is remarkably reduced.
On the other hand, when the content of l-carvone is increased, the effect is enhanced, but the scent peculiar to l-carvone becomes too strong, and since it is viscous, when added to cosmetics, the feeling of use is increased. The problem of worsening occurred, and neither the use amount of 1-carvone nor the use amount thereof was preferable.
Therefore, it has been desired to create an antiandrogen drug raw material and an antiandrogen drug composition that exhibit an excellent activity inhibiting effect of 5α-reductase even at a low content.
[0006]
[Means for Solving the Problems]
The present invention has been made to solve the above problems, and the invention according to claim 1 is represented by citral represented by the following formula 3 (Chemical Formula 3) and / or the following Formula 4 (Chemical Formula 4). The present invention relates to an anti-androgen composition, which is a cosmetic, pharmaceutical product or quasi-drug containing an anti-androgen material comprising geranium acid.
[Chemical 3]
[Formula 4]
[0007]
DETAILED DESCRIPTION OF THE INVENTION
The present inventor has found that citral and geranium acid have the ability to inhibit the activity of 5α-reductase, and have completed the present invention. That is, in the present invention, citral and / or geraniic acid is used as a raw material for an antiandrogen. In the examples described later, it will be clarified that citral and geranium acid have an excellent activity inhibiting ability.
[0008]
Citral is a substance present in various essential oils with lemon aroma, such as lemongrass oil, lemon oil, mandarin oil, etc., and particularly present in lemongrass oil (70-80%). ). This citral is represented by the following formula 5 (Chemical formula 5), and there are two stereoisomers (cis type and trans type). Citral as a natural product is a mixture of these two isomers, and the mixing ratio is 80 to 90% for the trans type and 10 to 20% for the cis type.
[Chemical formula 5]
[0009]
When citral as a natural product is obtained from the above lemongrass oil, lemongrass oil is first obtained by immersing lemongrass (Cymbopogon flexuous (DC) Staps) from which the stems and leaves have been cut into water, followed by steam distillation. Get. Thereafter, this lemongrass oil can be obtained by fractional distillation.
[0010]
As described above, citral can be obtained by fractionating an essential oil such as lemongrass oil, but is industrially produced by catalytic air oxidation of geraniol or nerol over metallic copper.
It can also be obtained by isomerizing dehydrolinalol, which is an intermediate substance of geraniol synthesis reaction, or by hydrolyzing after isomerizing myrcene, which is also an intermediate substance of geraniol synthesis reaction.
[0011]
Geranium acid is a substance obtained by oxidizing the above citral with silver oxide, and is represented by the following formula 6 (Formula 6).
[Chemical 6]
[0012]
In the present invention, the above-mentioned citral and geranium acid can be used alone or in combination as a raw material for an anti-androgen agent. When mixed and used, the mixing ratio is not particularly limited.
[0013]
The compounding amount of citral and / or geraniic acid in the antiandrogen composition is preferably 0.01 to 10% by weight in the composition, but is not particularly limited. If the amount is less than 0.01% by weight, the effect of citral and / or geraniic acid is not sufficiently exhibited, and if the amount exceeds 10% by weight, no further effect can be expected, which is not preferable in any case.
[0014]
The anti-androgen composition containing the anti-androgen agent raw material can be used as cosmetics, quasi drugs or pharmaceuticals. For example, cosmetics such as hair tonics, hair creams, hair treatments, etc. for hair growth and hair restoration, cosmetic creams with specific uses such as acne prevention, stains, freckles relief, cosmetics such as milky lotions, or medicated cosmetics (Quasi-drugs) Furthermore, it can be used as a medicament for the treatment of acne and benign prostatic hyperplasia.
When used as a pharmaceutical, 1 mg to 1000 mg / day may be applied in 2 to 3 divided doses.
[0015]
In addition to the anti-androgen hormone material, the following substances are appropriately blended in the anti-androgen drug composition according to the present invention.
For example, vitamin E and its derivatives, assembly extract, garlic extract, cephalanthin, carpronium chloride, acetylcholine and other blood circulation promoters, chili tincture, cantalis tincture, ginger tincture, nonyl acid vanillamide, etc. Stimulants, keratolytic agents such as salicylic acid, resorcin, lactic acid, placenta extract, pentadecanoic acid glyceride, pantothenyl ethyl ether, biotin, hinokitiol, allantoin and other metabolic activators, glycyrrhizic acid, glycyrrhetinic acid and other anti-inflammatory agents, isopropylmethylphenol Further, bactericides such as triclosan, zinc pyrithione and hinokitiol, refreshing agents such as menthol and camphor, and other female hormones are appropriately blended.
In addition, ascorbic acid and derivatives thereof, sulfur preparations, whitening agents such as glutathione, or commonly used known additives such as humectants, ultraviolet absorbers, vitamins and the like can be appropriately blended.
[0016]
Furthermore, alcohol, polyhydric alcohol, water-soluble polymer, antioxidant, pH adjuster, UV inhibitor, sequestering agent, thickener, surfactant, as long as the effect of the present invention is not impaired. Ordinary cosmetic ingredients such as purified water, fragrances, preservatives, antibacterial agents, oils, higher fatty acids, fatty acid esters, moisturizers, fresheners, pigments, or hormones, vitamins, amino acids, astringents and placenta extracts, Special ingredients such as herbal extracts such as elastin, collagen, mucopolysaccharide, aloe extract, loofah water, royal jelly, birch, carrot extract, chamomile extract, licorice extract, salvia extract, altea extract, and yarrow extract You may mix | blend a component arbitrarily suitably according to the objective.
[0017]
Citral and geranium acid used in the present invention are derived from natural products and are highly safe substances. Hereinafter, safety of citral and geranium acid will be described based on test results for citral and geranium acid.
As a toxicity test, 50% lethal dose (LD 50 ) of citral and geranium acid was examined using rats, mice and rabbits. The results for citral are shown in Table 1, and the results for geraniic acid are shown in Table 2.
[Table 1]
[Table 2]
[0018]
Next, the irritation test will be described. Citral and geranium acid were applied to the skin of humans, rabbits, pigs, and guinea pigs, left for 1 to 2 days, and the skin condition was examined and evaluated according to the following criteria.
○: Very smooth state.
Δ: Some of the skin is rough.
×: Strongly irritating and rough on the whole surface.
The results for citral are shown in Table 3, and the results for geranium acid are shown in Table 4.
[Table 3]
[Table 4]
[0019]
In addition, as a reproductive test for citral, the minimum dose (TDL 0 ) at which an abnormality occurred in the fetus was examined using rats before and after pregnancy. The results are shown in Table 5.
[Table 5]
[0020]
Furthermore, as a result of examining the change in the base sequence during DNA replication using Bacillus subtilis as a mutagenicity test for citral, the minimum dose at which the base sequence changes is 2222 μg / disc.
[0021]
From the above test results, it can be said that citral and geranium acid are highly safe substances.
[0022]
【Example】
Hereinafter, the present invention will be described in detail based on examples and comparative examples. However, the present invention is not limited to these examples.
(Examples 1 to 3 and Comparative Example 1)
Citral standard product (manufactured by Wako Pure Chemical Industries), Example 1, Geranium acid standard product (manufactured by Fluka) in Example 2, citral and geranium acid mixed at a ratio of 3: 1 in Example 3, l- Carboxy (manufactured by Wako Pure Chemical Industries, Ltd.) was used as a sample of Comparative Example 1, and the inhibition rate of the enzyme reaction that metabolizes testosterone catalyzed by 5α-reductase to DHT was examined based on the test method described below.
[0023]
(Test method)
As a testosterone-5α-reductase solution, a 9000 × g supernatant fraction (hereinafter referred to as S-9) of a rat liver homogenate was used.
As testosterone used in the test, a solution obtained by adding 5.0 ml of 1 mg / ml β-NADPH / 5 mM-Tris-HCl buffer to 1.5 ml of a 0.576 mg / ml testosterone-propylene glycol solution ( Hereinafter, it is referred to as Solution A).
[0024]
0.25 ml of ethanol was added to 7.75 mg of each of Examples 1 to 3 and Comparative Example 1 to obtain a sample solution. The sample solution was added to 5.0 ml of the above solution A, and 1.0 ml of S-9 was further added to form a reaction solution. At this time, the concentration of the sample was 0.1% by weight in the reaction solution.
Similarly, a reaction solution having a concentration of 0.001% by weight of the sample in the reaction solution was obtained.
[0025]
The above reaction solution was sufficiently stirred and then incubated at 37 ° C. for 30 minutes, and then 5.0 ml of dichloromethane was added as a reaction terminator to stop the reaction. Next, 0.1 ml of a 5.0 mg / ml progesterone-ethanol solution was added as an internal standard substance and sufficiently stirred. After stirring, the dichloromethane layer was separated and concentrated, and then residual testosterone, DHT and androstanediol as reaction products in the sample were quantitatively analyzed using gas chromatography. The conditions for quantitative analysis by gas chromatography were DB-17 used for the column and the column temperature was 240 ° C. Detection was performed using FID.
[0026]
From the peak area of each component of gas chromatography, the amount of each component is obtained, and based on the following formula (Equation 1), the inhibition rate of the enzyme reaction that metabolizes testosterone catalyzed by 5α-reductase into DHT is calculated. Calculated.
[Expression 1]
a: Residual testosterone amount when no specimen is added b; Total amount of DHT and androstanediol when no specimen is added a ′; Residual testosterone amount b ′ when specimen is added; DHT and total amount of androstanediol when specimen is added [0027]
The test results are shown in Table 6.
[Table 6]
[0028]
From the results of Table 6, it can be seen that citral and geraniic acid exhibit excellent 5α-reductase activity inhibition ability even at a low content.
[0029]
Hereinafter, the antiandrogen composition containing the antiandrogen agent raw material according to the present invention is shown.
[0030]
[0031]
[0032]
【The invention's effect】
As described above in detail, the invention according to claim 1 contains a raw material for an anti-androgen hormone comprising citral represented by the following formula 7 (Chemical formula 7) and / or geranium acid represented by the following formula 8 (Chemical formula 8). Since it relates to an anti-androgen composition characterized in that it is a cosmetic product, a pharmaceutical product or a quasi-drug , the following effects are obtained.
[Chemical 7]
[Chemical 8]
[0033]
That is, since citral and geraniic acid exhibit an excellent ability to inhibit 5α-reductase activity even at a low content, the raw material for an antiandrogenic agent comprising citral and / or geraniic acid is an active form of testosterone, which is a male hormone. By inhibiting the activity of 5α-reductase, which is a reductase that metabolizes to the male hormone dihydrotestosterone (DHT), hair loss promotion by DHT and the occurrence of acne can be suppressed. Therefore, cosmetics, pharmaceuticals and quasi drugs containing this anti-androgen raw material are effective for the prevention and treatment of hair loss and acne, and in some cases can also be used for the treatment of benign prostatic hyperplasia. There is an excellent effect of being able to. Moreover, since citral and geraniic acid are substances derived from natural products, they can be made into highly safe cosmetics, pharmaceuticals or quasi drugs.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19506397A JP4091145B2 (en) | 1997-07-03 | 1997-07-03 | Antiandrogen composition |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19506397A JP4091145B2 (en) | 1997-07-03 | 1997-07-03 | Antiandrogen composition |
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| Publication Number | Publication Date |
|---|---|
| JPH1121235A JPH1121235A (en) | 1999-01-26 |
| JP4091145B2 true JP4091145B2 (en) | 2008-05-28 |
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| JP5283873B2 (en) * | 2007-08-31 | 2013-09-04 | 株式会社カネカ | Whitening composition |
| JP2010001227A (en) * | 2008-06-18 | 2010-01-07 | Kao Corp | Hair-growing agent, nfat signal inhibitor and calcineurin inhibitor |
| JP5923381B2 (en) * | 2012-05-17 | 2016-05-24 | 花王株式会社 | PPARγ activity inhibitor |
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