JPH1059839A - Preparation for external use for skin - Google Patents

Preparation for external use for skin

Info

Publication number
JPH1059839A
JPH1059839A JP8239702A JP23970296A JPH1059839A JP H1059839 A JPH1059839 A JP H1059839A JP 8239702 A JP8239702 A JP 8239702A JP 23970296 A JP23970296 A JP 23970296A JP H1059839 A JPH1059839 A JP H1059839A
Authority
JP
Japan
Prior art keywords
skin
glutathione
external preparation
oxidized
salts
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.)
Granted
Application number
JP8239702A
Other languages
Japanese (ja)
Other versions
JP4002313B2 (en
Inventor
Atsuko Imahori
篤子 今堀
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Noevir Co Ltd
Original Assignee
Noevir Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Noevir Co Ltd filed Critical Noevir Co Ltd
Priority to JP23970296A priority Critical patent/JP4002313B2/en
Publication of JPH1059839A publication Critical patent/JPH1059839A/en
Application granted granted Critical
Publication of JP4002313B2 publication Critical patent/JP4002313B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Cosmetics (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)

Abstract

PROBLEM TO BE SOLVED: To obtain a safe and stable preparation for external use for skin, capable of effectively reaching surface ground layer by increasing skin and cell membrane permeating property of glutathione, improving pigmentation due to blacking, stain, freckle or sunburn of skin, preventing aging of skin based on oxidation reaction by enhancing antioxidation action and having low skin irritation. SOLUTION: This preparation for external use for skin is obtained by blending one or two or more kinds of compounds selected from salts of an alkyl ester of an oxidation type and reduction type glutathione with an amino acid or combinedly using one or two or more kinds of compounds selected from salts of alkylester of oxidation type glutathione with an amino acid and reduction type nicotinamide adeninedinucleotide(NADH) and/or reduction type nicotinamide adeninedinucleotide phosphoric acid(NADPH).

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】この発明は、皮膚の色黒,シミ,
ソバカス、或いは日焼けによる色素沈着を改善し、また
抗酸化作用及びこれに基づく皮膚の老化を防止又は予防
し、かつ皮膚刺激性が低く安全でさらに安定である皮膚
外用剤に関する。さらに詳しくは、酸化型及び還元型グ
ルタチオンのアルキルエステルとアミノ酸との塩類から
選ばれた1種又は2種以上を配合してなる皮膚外用剤、
或いは酸化型グルタチオンのアルキルエステルとアミノ
酸との塩類から選ばれた1種又は2種以上と還元型ニコ
チンアミドアデニンジヌクレオチド(NADH)及び/
又は還元型ニコチンアミドアデニンジヌクレオチドリン
酸(NADPH)とを併用してなる皮膚外用剤に関す
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the use of black and white skin,
The present invention relates to an external preparation for skin which improves pigmentation due to freckles or sunburn, prevents or prevents an antioxidant effect and skin aging based on the antioxidant effect, and has low skin irritation and is safe and more stable. More specifically, a skin external preparation comprising one or more selected from salts of alkyl esters of oxidized and reduced glutathione and amino acids,
Alternatively, one or more selected from salts of an alkyl ester of oxidized glutathione and an amino acid and reduced nicotinamide adenine dinucleotide (NADH) and / or
Or, it relates to an external preparation for skin which is used in combination with reduced nicotinamide adenine dinucleotide phosphate (NADPH).

【0002】[0002]

【従来の技術】還元型グルタチオンは、生体内の酸化還
元系に関与し生体内で活性酸素種を捕捉する抗酸化作
用、SH酵素などいろいろの酵素を活性化すると共に、
補酵素としても作用すること、またメルカプツール酸抱
合等の解毒反応にも関与し、さらにチロシナーゼの活性
及び生合成を阻害することが知られている。そのため、
還元型グルタチオンを配合した皮膚外用剤は、老化防止
作用と美白作用を合わせ持つ有効な製剤として期待され
ている。
2. Description of the Related Art Reduced glutathione is involved in a redox system in a living body and activates various enzymes such as an antioxidant action to capture reactive oxygen species in the living body and an SH enzyme.
It is known to act as a coenzyme, to participate in detoxification reactions such as mercapturic acid conjugation, and to inhibit tyrosinase activity and biosynthesis. for that reason,
Skin external preparations containing reduced glutathione are expected to be effective preparations having both an antiaging effect and a whitening effect.

【0003】また、酸化型グルタチオンは、生体内でN
ADHやNADPHを水素供与体として、グルタチオン
リダクターゼの作用を受けて還元型グルタチオンに変化
し、生理活性を発揮することが知られている。
[0003] In addition, oxidized glutathione is used in vivo to produce N
It is known that ADH or NADPH is used as a hydrogen donor to change into reduced glutathione under the action of glutathione reductase, thereby exhibiting a physiological activity.

【0004】しかしながら、酸化型或いは還元型グルタ
チオン(以下グルタチオン類と略す)は、水溶性の性質
を有しているために、経皮透過性及び細胞膜透過性が低
く、有効な美白作用及び抗酸化作用を発現させるために
はかなり高濃度を外用剤基剤中に配合する必要があっ
た。そこで、グルタチオン類の分子中のカルボキシル基
を低級アルコールでアルキルエステル化することにより
脂溶性を付与し、配合した皮膚化粧料が提案されている
(特公昭48−1505)。
[0004] However, oxidized or reduced glutathione (hereinafter abbreviated as glutathione) has a low water-soluble property and therefore has low transdermal permeability and low cell membrane permeability, and is effective in whitening and antioxidant. In order to exert the effect, it was necessary to mix a considerably high concentration in the external preparation base. Therefore, there has been proposed a skin cosmetic composition in which a carboxyl group in the molecule of glutathione is alkyl-esterified with a lower alcohol to impart lipophilicity and blended (Japanese Patent Publication No. 48-1505).

【0005】[0005]

【発明が解決しようとする課題】本発明は、皮膚刺激性
や副作用の問題がなく、安全且つ安定で、非常に優れた
美白効果及び老化防止効果を発揮する皮膚外用剤を提供
することを目的とする。すなわち、美白効果及び老化防
止効果を有するグルタチオン類の経皮及び細胞膜透過性
を高めて、表皮基底層に有効に到達させることを可能と
するものである。
SUMMARY OF THE INVENTION An object of the present invention is to provide a skin external preparation which is safe and stable, has no problem of skin irritation and side effects, and has an extremely excellent whitening effect and anti-aging effect. And That is, the transdermal and cell membrane permeability of glutathione having a whitening effect and an anti-aging effect is enhanced, and it is possible to effectively reach the basal layer of the epidermis.

【0006】[0006]

【課題を解決するための手段】従って本発明において
は、グルタチオン類の経皮及び細胞膜透過性を高めるた
め、グルタチオン類誘導体の検討を行った。その結果、
酸化型及び還元型のグルタチオンのアルキルエステルと
アミノ酸との塩類を配合することにより、これらの経皮
及び細胞膜透過性は顕著に高まり、同一配合量における
チロシナーゼ活性或いは生合成阻害作用及び抗酸化作用
が驚くほど向上することを見出した。従って皮膚外用剤
基剤に対する前記グルタチオン類のエステルの配合量は
少量でよく、外用剤の製剤安定性に及ぼす影響も小さ
く、さらに皮膚刺激の発生等安全性上の問題もない。
Accordingly, in the present invention, glutathione derivatives have been studied in order to increase the transdermal and cell membrane permeability of glutathiones. as a result,
By blending salts of oxidized and reduced glutathione alkyl esters with amino acids, their percutaneous and cell membrane permeability are remarkably enhanced, and tyrosinase activity or biosynthesis inhibitory action and antioxidant action at the same amount are reduced. I found that it improved surprisingly. Therefore, the glutathione ester may be incorporated in a small amount with respect to the skin external preparation base, the effect of the external preparation on the preparation stability is small, and there is no safety problem such as generation of skin irritation.

【0007】本発明で用いられる、酸化型及び還元型の
グルタチオンのアルキルエステルとアミノ酸との塩類
は、式(1)及び式(2)で表される化合物で、
The oxidized and reduced glutathione alkyl esters and amino acids used in the present invention are compounds represented by formulas (1) and (2):

【0008】[0008]

【化1】 Embedded image

【化2】 AAは、上記エステル類と塩を形成するアミノ酸であ
り、R1は炭素数1〜12のアルキル基、R2は水素基若
しくは炭素数1〜12のアルキル基である。
Embedded image AA is an amino acid that forms a salt with the above esters, R1 is an alkyl group having 1 to 12 carbon atoms, and R2 is a hydrogen group or an alkyl group having 1 to 12 carbon atoms.

【0009】エステル類と塩を形成するアミノ酸は、水
溶性及び生理学的相溶性の面からグリシン,アラニン,
アスパラギン酸及びグルタミン酸のような天然のα−ア
ミノ酸、ピログルタミン酸,γ−アミノ酪酸及びタウリ
ンが例示される。
Amino acids that form salts with esters are glycine, alanine, and glycine from the viewpoint of water solubility and physiological compatibility.
Examples are natural α-amino acids such as aspartic acid and glutamic acid, pyroglutamic acid, γ-aminobutyric acid and taurine.

【0010】また、アルキルエステルを形成するアルキ
ル基の炭素数は、1〜12が好ましく、水溶性及び脂溶
性の面から1〜6が特に好ましい。またアルキル基若し
くはアルケニル基は直鎖状であっても分岐を有してもか
まわない。
The number of carbon atoms of the alkyl group forming the alkyl ester is preferably from 1 to 12, and particularly preferably from 1 to 6 from the viewpoint of water solubility and fat solubility. The alkyl group or alkenyl group may be linear or branched.

【0011】本発明で用いられる、酸化型及び還元型の
グルタチオンのアルキルエステルとアミノ酸との塩類
は、例えば特表平6−509817に記載された方法で
製造することができる。すなわち、グルタチオンアルキ
ルエステルを水中でアミノ酸で処理した後、減圧下で溶
媒を除去し、得られた反応生成物をアルコールで沈殿さ
せて単離することによって製造することができる。この
ようにして得られた塩は、そのままでも、冷エタノール
又は他の有機溶媒で洗浄して用いてもよい。さらに、こ
の塩において、結晶水若しくはエタノールを含んでもよ
い。
The oxidized and reduced glutathione alkyl esters and amino acid salts used in the present invention can be produced, for example, by the method described in JP-A-6-509817. That is, it can be produced by treating a glutathione alkyl ester with an amino acid in water, removing the solvent under reduced pressure, and precipitating and isolating the obtained reaction product with alcohol. The salt thus obtained may be used as it is, or washed with cold ethanol or another organic solvent. Further, the salt may contain water of crystallization or ethanol.

【0012】[0012]

【発明の実施の形態】上記の酸化型及び還元型のグルタ
チオンのアルキルエステルとアミノ酸との塩類を通常の
皮膚外用剤基剤中に配合して皮膚外用剤とする。配合量
は、製剤中の有効濃度や製剤の安定性等を考慮して0.
001〜10重量%程度が適当である。外用剤の形態と
しては、ローション,乳剤,クリーム,軟膏等、種々の
形態をとることができる。また、化粧水,美容液,乳
液,クリーム等の老化防止用及び美白用化粧料としても
提供することができる。
BEST MODE FOR CARRYING OUT THE INVENTION Salts of the above-mentioned oxidized and reduced alkyl glutathione esters and amino acids are blended into an ordinary skin external preparation base to prepare a skin external preparation. The amount to be blended is set at 0.1 considering the effective concentration in the preparation and the stability of the preparation.
About 001 to 10% by weight is appropriate. The external preparation may take various forms such as lotions, emulsions, creams, ointments and the like. In addition, it can be provided as an anti-aging and whitening cosmetic such as lotion, serum, milky lotion, cream and the like.

【0013】また、酸化型グルタチオンのエステルを配
合した場合は、水素供与体であるNADH及び/又はN
ADPHと併用することにより、前記の生理活性がさら
に高められることを見出した。
When an oxidized glutathione ester is blended, the hydrogen donors NADH and / or N
It has been found that the use of ADPH in combination further enhances the aforementioned physiological activity.

【0014】[0014]

【作用】本発明で用いる酸化型及び還元型のグルタチオ
ンのアルキルエステルとアミノ酸との塩類のメラニン色
素白色化作用、チロシナーゼ活性阻害作用及びチロシナ
ーゼ生合成阻害作用について以下に示す。作用を測定し
た化合物を表1にまとめて示した。比較のため、酸化型
グルタチオン及び還元型グルタチオンを用いて同様に作
用の測定を行った。
The whitening action, tyrosinase activity inhibitory action and tyrosinase biosynthesis inhibitory action of salts of oxidized and reduced glutathione alkyl esters and amino acids used in the present invention are shown below. The compounds whose effects were measured are summarized in Table 1. For comparison, the effect was similarly measured using oxidized glutathione and reduced glutathione.

【0015】[0015]

【表1】 [Table 1]

【0016】メラニン色素白色化作用は、グルタチオン
類を精製水に溶解した後、適当量の培地にて希釈して試
料とした。マウスB16メラノーマ細胞の懸濁液(細胞数
50,000程度)に添加し、3日間培養を行った後、
細胞を分離し、測色して評価した。グルタチオン類を添
加せず同様に処理した系を対照としてL値の差を求め、
図1に示した。グルタチオンを添加した系と比較して、
グルタチオンアルキルエステルのアミノ酸との塩類を添
加した系では、L値の差が3倍以上大きくなっており、
グルタチオンアルキルエステルをアミノ酸塩として配合
することにより、細胞膜透過性が向上しメラニン色素白
色化作用が顕著に上昇した。
For the melanin pigment whitening effect, a sample was prepared by dissolving glutathione in purified water and diluting it with an appropriate amount of medium. After adding to a suspension of mouse B16 melanoma cells (about 50,000 cells) and culturing for 3 days,
Cells were separated, colorimetrically evaluated. The difference in L value was determined using a system treated in the same manner without adding glutathione as a control,
As shown in FIG. Compared to the system to which glutathione was added,
In a system to which a salt of glutathione alkyl ester with an amino acid is added, the difference in L value is three times or more,
By mixing the glutathione alkyl ester as an amino acid salt, the cell membrane permeability was improved and the melanin pigment whitening effect was significantly increased.

【0017】チロシナーゼ活性阻害作用は、グルタチオ
ン類を精製水に溶解して試料とし、酵素溶液としてチロ
シナーゼ(50,000units,シグマ社製)を精製水
で600倍希釈したものを用い、チロシン50mgを精
製水100mlに溶解して基質溶液として評価した。グ
ルタチオン類は、最終濃度が1.0μM〜100mMの
範囲で段階的に変化するように添加した。
The tyrosinase activity inhibitory effect is obtained by dissolving glutathione in purified water to prepare a sample, and using a tyrosinase (50,000 units, Sigma) diluted 600 times with purified water as an enzyme solution to purify 50 mg of tyrosine. It was dissolved in 100 ml of water and evaluated as a substrate solution. Glutathiones were added so that the final concentration was changed stepwise in the range of 1.0 μM to 100 mM.

【0018】酵素反応は、試料溶液2ml,1/15M
リン酸緩衝液(pH6.8)2ml,基質溶液0.5m
l,酵素溶液0.5mlを混合し、37℃にて1時間イ
ンキュベートして行わせた。反応後475nmにおける
吸光度(As)を測定した。さらに試料溶液の代わりに
精製水を添加した系,及び基質溶液の代わりに精製水を
添加した系において同様に反応させ、それぞれの場合に
おける吸光度(Ab及びA0)を測定した。チロシナーゼ
活性阻害率は数式(1)により求めた。
The enzymatic reaction is carried out in a sample solution 2 ml, 1 / 15M
2 ml of phosphate buffer (pH 6.8), substrate solution 0.5 m
1, 0.5 ml of enzyme solution was mixed and incubated at 37 ° C. for 1 hour. After the reaction, the absorbance (As) at 475 nm was measured. Further, the same reaction was performed in a system in which purified water was added instead of the sample solution and in a system in which purified water was added instead of the substrate solution, and the absorbance (Ab and A0) in each case was measured. The tyrosinase activity inhibition rate was determined by equation (1).

【0019】[0019]

【数1】 (Equation 1)

【0020】チロシナーゼ生合成阻害作用の評価は次の
ようにして行った。グルタチオン類の水溶液をマウスB
16メラノーマ細胞(細胞数50,000程度)に添加
し、3日間培養を行った後、以下の方法により細胞中の
チロシナーゼ活性を測定した。すなわち、1/15Mリ
ン酸緩衝液(pH6.8)2mlに1.0重量%のドー
パ水溶液0.5ml及び培養細胞液0.5mlを混合
し、37℃にて1時間インキュベートした後、405n
mにおける吸光度(As)を測定した。対照として溶媒
の精製水のみを同様に添加して培養し、同様に培養細胞
液とドーパ水溶液とをインキュベートして吸光度(A
b)を測定し、数式(2)によりチロシナーゼ生合成阻害率
を求めた。グルタチオン類は、最終濃度が1.0μM〜
100mMの範囲で段階的に変化するように添加した。
The tyrosinase biosynthesis inhibitory activity was evaluated as follows. Mouse B with aqueous solution of glutathione
After adding the cells to 16 melanoma cells (about 50,000 cells) and culturing for 3 days, the tyrosinase activity in the cells was measured by the following method. That is, 0.5 ml of a 1.0% by weight dopa aqueous solution and 0.5 ml of a cultured cell solution were mixed with 2 ml of a 1/15 M phosphate buffer (pH 6.8), and incubated at 37 ° C. for 1 hour.
The absorbance (As) at m was measured. As a control, culture was performed by adding only purified water as a solvent in the same manner, and the cultured cell solution and the dopa aqueous solution were similarly incubated, and the absorbance (A
b) was measured, and the tyrosinase biosynthesis inhibition rate was determined by equation (2). Glutathiones have a final concentration of 1.0 μM or more.
It was added so as to change stepwise in the range of 100 mM.

【0021】[0021]

【数2】 (Equation 2)

【0022】各試料について、ドーズレスポンス曲線を
作成し、50%阻害濃度(ID50)を求めて、表2にま
とめて示した。表2において、酸化型及び還元型のグル
タチオンのアルキルエステルとアミノ酸との塩類のチロ
シナーゼ活性阻害作用及びチロシナーゼ生合成阻害作用
についてのID50は、エステル化していないグルタチオ
ン類の場合の1/211から1/62及び1/85から
1/29となり、酸化型及び還元型のグルタチオンのア
ルキルエステルとアミノ酸との塩類を添加することによ
り、同一濃度で添加した場合、チロシナーゼ活性阻害作
用及びチロシナーゼ生合成阻害作用は大幅に向上する。
For each sample, a dose response curve was prepared, and the 50% inhibitory concentration (ID 50 ) was determined. The results are shown in Table 2. In Table 2, the ID 50 for the tyrosinase activity inhibitory activity and tyrosinase biosynthesis inhibitory activity of salts of alkyl and amino acids of oxidized and reduced glutathione is from 1/211 to 1 in the case of non-esterified glutathione. / 62 and 1/85 to 1/29, and by adding salts of oxidized and reduced forms of glutathione alkyl ester and amino acid, when added at the same concentration, tyrosinase activity inhibitory action and tyrosinase biosynthesis inhibitory action Is greatly improved.

【0023】[0023]

【表2】 [Table 2]

【0024】酸化型及び還元型のグルタチオンのアルキ
ルエステルとアミノ酸との塩類の活性酸素種による細胞
傷害防御作用は、ヒト線維芽細胞に活性酸素種を曝露
し、その際の細胞生存率を指標として評価できる。培養
したヒト線維芽細胞に、グルタチオン類のエステルを作
用させた後、洗浄し、ヒポキサンチン-キサンチンオキ
シダーゼ系にて活性酸素種(スーパーオキシド及びヒド
ロキシラジカル)を曝露した。曝露後の細胞生存率はM
TT還元法により測定した。
[0024] The cytotoxic effect of salts of oxidized and reduced forms of glutathione alkyl esters and amino acids by reactive oxygen species is determined by exposing human fibroblasts to reactive oxygen species and using the cell viability at that time as an index. Can be evaluated. Glutathione esters were allowed to act on the cultured human fibroblasts, washed, and exposed to reactive oxygen species (superoxide and hydroxyl radical) using a hypoxanthine-xanthine oxidase system. Cell viability after exposure is M
It was measured by the TT reduction method.

【0025】なおMTT還元法は、細胞のミトコンドリ
ア内に存在する脱水素酵素が基質に作用して生じるNA
DHにより、系に添加したMTT(2-(4,5-ジメチル−2
-チアゾリル)-3,5-ジフェニルテトラゾリウム ブロミ
ド)のテトラゾリウム環が開環することを利用する測定
方法である。テトラゾリウム環の開環により青色のフォ
ルマザンが生成するので、これを560nmにおける吸
光度測定により定量する。
In the MTT reduction method, the dehydrogenase present in the mitochondria of a cell acts on a substrate to generate NA.
With DH, MTT (2- (4,5-dimethyl-2) added to the system was added.
-Thiazolyl) -3,5-diphenyltetrazolium bromide). Since blue formazan is generated by the opening of the tetrazolium ring, this is quantified by measuring absorbance at 560 nm.

【0026】その結果、図2に示すように、酸化型及び
還元型のグルタチオンのアルキルエステルとアミノ酸と
の塩類で処理した場合は、70〜85%の良好な細胞生
存率を示した。これに対し、エステル塩化していないグ
ルタチオン類で処理した場合は、30%未満の低い細胞
生存率を示した。
As a result, as shown in FIG. 2, when treated with a salt of an oxidized or reduced glutathione alkyl ester and an amino acid, a good cell viability of 70 to 85% was exhibited. In contrast, when treated with glutathiones that were not esterified, a low cell viability of less than 30% was exhibited.

【0027】[0027]

【実施例】さらに、本発明について実施例により詳細に
説明する。
EXAMPLES Further, the present invention will be described in more detail with reference to examples.

【0028】 実施例 乳液 (1) スクワラン 5.0(重量%) (2) 白色ワセリン 2.0 (3) ミツロウ 0.5 (4) ソルビタンセスキオレエート 0.8 (5) ポリオキシエチレンオレイルエーテル(20EO) 1.2 (6) 1,3-ブチレングリコール 5.0 (7) 酸化型及び還元型のグルタチオンのアルキル 若しくはアルケニルエステルとアミノ酸との塩類 1.0 及びNADPH,NADH (8) 精製水 59.0 (9) カルボキシビニルポリマー1.0重量%水溶液 20.0 (10) 水酸化カリウム 0.1 (11) エタノール 5.0 (12) パラオキシ安息香酸メチル 0.2 (13) 香料 0.2 (1)〜(5)の油相成分を混合し75℃に加熱して溶解,
均一化する。一方(6)〜(8)の水相成分を混合,溶解し
て75℃に加熱し、前記の油相成分を添加して予備乳化
する。(9)を添加した後ホモミキサーにて均一に乳化
し、(10)を加えてpHを調整する。冷却後40℃にて、
(12),(13)の成分を(10)に溶解して添加,混合,均一化
する。
Example Emulsion (1) Squalane 5.0 (% by weight) (2) White petrolatum 2.0 (3) Beeswax 0.5 (4) Sorbitan sesquioleate 0.8 (5) Polyoxyethylene oleyl ether (20EO) 1.2 (6) 1,3-butylene glycol 5.0 (7) Oxidized and reduced alkyl or alkenyl esters of glutathione and salts with amino acids 1.0 and NADPH, NADH (8) Purified water 59.0 (9) 1.0% by weight aqueous solution of carboxyvinyl polymer 20.0 (10) Potassium hydroxide 0.1 (11) Ethanol 5.0 (12) Methyl parahydroxybenzoate 0.2 (13) Fragrance 0.2 ( The oil phase components of 1) to (5) are mixed and heated to 75 ° C. to dissolve,
Make uniform. On the other hand, the aqueous phase components (6) to (8) are mixed and dissolved, heated to 75 ° C., and the oil phase component is added and pre-emulsified. After adding (9), the mixture is emulsified uniformly with a homomixer, and (10) is added to adjust the pH. At 40 ° C after cooling,
The components (12) and (13) are dissolved in (10), added, mixed and homogenized.

【0029】上記乳液に配合した酸化型及び還元型のグ
ルタチオンのアルキルエステルとアミノ酸との塩類を、
表3に示す。また還元型グルタチオン及び酸化型グルタ
チオンとNADPH或いはNADHを配合したものを比
較例とした。
The salts of the oxidized and reduced glutathione alkyl esters and amino acids blended in the emulsion are
It is shown in Table 3. Further, a mixture of reduced glutathione and oxidized glutathione with NADPH or NADH was used as a comparative example.

【0030】[0030]

【表3】 [Table 3]

【0031】皮膚の老化防止効果(しわ発生防止効果) ヘアレスマウス5匹を一群とし、各群について本発明の
実施例及び比較例をそれぞれ1日1回背部に塗布し、1
J/平方cm/週のUVAを50週間照射し、しわの発
生状況を経時的に肉眼観察により評価した。しわの発生
状況は、「発生せず;0点」,「微小なしわがわずかに
発生;1点」,「軽微なしわが明確に発生;2点」,
「中程度のしわが発生;3点」,「深いしわが発生;4
点」として点数化し、各群の平均点を算出した。その
際、精製水を塗布した群を対照とした。
Skin Aging Prevention Effect (Wrinkle Prevention Effect) Five hairless mice were grouped as a group, and the Examples and Comparative Examples of the present invention were applied to the back once a day for each group.
UVA of J / square cm / week was irradiated for 50 weeks, and the occurrence of wrinkles was evaluated by visual observation over time. The wrinkle occurrence status is “No occurrence; 0 point”, “Small wrinkle occurs; 1 point”, “Minor wrinkle clearly occurs; 2 points”,
"Medium wrinkles occurred; 3 points", "Deep wrinkles occurred; 4
The points were scored as "points", and the average score of each group was calculated. At that time, a group to which purified water was applied was used as a control.

【0032】使用試験 皮膚の弾性の低下及びシミ,ソバカス,日焼け等の色素
沈着を主な症状として有するパネラー20名を一群と
し、各群にそれぞれ実施例及び比較例をブラインドにて
顔面及び手に使用させ、皮膚弾性及び色素沈着の変化を
観察し、評価した。使用期間は4月から10月の6カ月
間とした。皮膚弾性については、「上昇」,「やや上
昇」,「変化なし」,「低下」の4段階で、美白効果に
ついては、「改善」,「やや改善」,「変化なし」の3
段階にて評価をし、各評価を得たパネラー数にて結果を
示した。
Usage Test A group of 20 panelists, whose main symptoms were decreased skin elasticity and pigmentation such as spots, freckles, and sunburn, were placed in a group, and the examples and comparative examples were blindly applied to the face and hands in each group. After use, changes in skin elasticity and pigmentation were observed and evaluated. The period of use was 6 months from April to October. The skin elasticity has four levels of "rise", "slight increase", "no change" and "decrease", and the whitening effect has three levels of "improvement", "slight improvement" and "no change".
The evaluation was performed at each stage, and the results were shown by the number of panelists who obtained each evaluation.

【0033】[0033]

【表4】 [Table 4]

【0034】皮膚の老化防止効果の結果を表4に示し
た。老化防止効果測定結果より、酸化型及び還元型のグ
ルタチオンのアルキルエステルとアミノ酸との塩類を配
合した実施例においては、いずれもしわの発生が顕著に
抑制されており、UVAを50週間照射した後において
も、各群とも微小なしわの発生を認めただけであった。
これに対してエステル塩としないグルタチオン類を配合
した比較例3〜6においては、対照に比べ若干のしわ発
生抑制効果は認められるが、いずれにおいても明確なし
わの形成が見られ、形成されたしわはほぼ中程度の深さ
にまで達していた。
Table 4 shows the results of the skin anti-aging effect. From the measurement results of the anti-aging effect, in Examples in which the salts of the oxidized and reduced forms of glutathione alkyl ester and amino acid were blended, the occurrence of wrinkles was significantly suppressed, and after irradiation with UVA for 50 weeks, In each group, only wrinkles were observed in each group.
On the other hand, in Comparative Examples 3 to 6 in which glutathiones were not used as ester salts, a slight wrinkle generation suppressing effect was observed as compared with the control, but clear wrinkles were formed and formed in all cases. The wrinkles had reached almost medium depth.

【0035】[0035]

【表5】 [Table 5]

【0036】表5に示した使用試験結果から明らかなよ
うに、酸化型及び還元型のグルタチオンのアルキルエス
テルとアミノ酸との塩類を配合した実施例を使用したパ
ネラーは全員皮膚弾性の上昇及び色素沈着の改善が認め
られた。これに対し、比較例3〜6を使用したパネラー
は、弾性がやや上昇したパネラーもいるが、明確に上昇
の認められたパネラーはおらず、美白効果に関しても、
はっきりと改善が認められたパネラーはおらず、40〜
50%のパネラーで変化を認めなかった。以上の結果よ
り、酸化型及び還元型のグルタチオンのアルキルエステ
ルとアミノ酸との塩類を配合することにより、酸化型グ
ルタチオン及び還元型グルタチオンを配合した場合と比
較して、老化防止効果及び美白効果が飛躍的に向上して
いることがわかる。
As is clear from the results of the use test shown in Table 5, all the panelers using the examples in which the salts of the oxidized and reduced forms of glutathione alkyl ester and the amino acid were blended showed an increase in skin elasticity and pigmentation. Improvement was observed. On the other hand, the panelers using Comparative Examples 3 to 6 had some panels whose elasticity was slightly increased, but none of the panelers were clearly observed to have an increased elasticity.
None of the panelists clearly improved, and
No change was observed in 50% of the panelists. From the above results, the antioxidant effect and the whitening effect are remarkably improved by mixing the salts of the oxidized and reduced glutathione alkyl esters and the amino acids as compared with the case where the oxidized glutathione and the reduced glutathione are mixed. It can be seen that the improvement has been achieved.

【0037】なお、上記の使用期間において、いずれの
実施例を使用した群においても、痛み、痒み等の皮膚刺
激やアレルギー反応等の皮膚症状を訴えたパネラーはい
なかった。また、乳化状態の悪化や配合成分の沈降,変
質等も認められなかった。
During the above-mentioned period of use, none of the groups using any of the examples reported any skin irritation such as pain or itchiness or skin symptoms such as allergic reaction. In addition, no deterioration of the emulsified state, no sedimentation and deterioration of the components were observed.

【0038】 実施例8 液状皮膚外用剤 (1)グリセリン 20.0(重量%) (2)プロピレングリコール 10.0 (3)ポリオキシエチレン(5EO)硬化ヒマシ油 2.0 (4)精製水 61.7 (5)エタノール 5.0 (6)パラオキシ安息香酸メチル 0.3 (7)還元型グルタチオンエチルエステルタウリン塩 1.0 (1)〜(7)の成分を順次添加し、混合,均一化する。Example 8 Liquid Skin External Preparation (1) Glycerin 20.0 (% by weight) (2) Propylene glycol 10.0 (3) Polyoxyethylene (5EO) hydrogenated castor oil 2.0 (4) Purified water 61 0.7 (5) Ethanol 5.0 (6) Methyl paraoxybenzoate 0.3 (7) Reduced glutathione ethyl ester taurine salt 1.0 The components (1) to (7) are sequentially added, mixed and homogenized. I do.

【0039】 実施例9 美容液 (1)グリセリン 5.0(重量%) (2)プロピレングリコール 4.0 (3)還元型グルタチオンメチルエステル 1.0 γ−アミノ酪酸塩 (4)精製水 79.9 (5)エタノール 10.0 (6)パラオキシ安息香酸メチル 0.1 (1)〜(6)の成分を順次添加し、混合,均一化する。Example 9 Serum (1) Glycerin 5.0 (% by weight) (2) Propylene glycol 4.0 (3) Reduced glutathione methyl ester 1.0 γ-aminobutyrate (4) Purified water 9 (5) Ethanol 10.0 (6) Methyl parahydroxybenzoate 0.1 The components (1) to (6) are sequentially added, mixed and homogenized.

【0040】 実施例10 W/O乳化型クリーム (1)ミツロウ 3.0(重量%) (2)吸着精製ラノリン 5.0 (3)スクワラン 20.0 (4)固形パラフィン 2.0 (5)マイクロクリスタリンワックス 5.0 (6)アジピン酸ヘキシルデシル 10.0 (7)セスキオレイン酸ソルビタン 3.5 (8)ポリオキシエチレン(50EO)硬化ヒマシ油 1.0 (9)1,3−ブチレングリコール 5.0 (10)還元型グルタチオンエチルエステルピログルタミン酸塩 1.0 (11)精製水 39.3 (12)パラオキシ安息香酸メチル 0.2 (13)エタノール 5.0 (1)〜(8)の油相成分を混合し75℃に加熱して溶解,均
一化する。一方(9)〜(11)の水相成分を混合,溶解して
75℃に加熱し、前記の油相成分に添加してホモミキサ
ーにて均一に乳化する。冷却後40℃にて、(12)の成分
を(13)に溶解して添加,混合,均一化する。
Example 10 W / O emulsified cream (1) Beeswax 3.0 (% by weight) (2) Adsorbed and purified lanolin 5.0 (3) Squalane 20.0 (4) Solid paraffin 2.0 (5) Microcrystalline wax 5.0 (6) Hexyldecyl adipate 10.0 (7) Sorbitan sesquioleate 3.5 (8) Polyoxyethylene (50EO) hydrogenated castor oil 1.0 (9) 1,3-butylene glycol 5.0 (10) Reduced glutathione ethyl ester pyroglutamate 1.0 (11) Purified water 39.3 (12) Methyl paraoxybenzoate 0.2 (13) Ethanol 5.0 (1) to (8) The oil phase components are mixed and heated to 75 ° C. to dissolve and homogenize. On the other hand, the aqueous phase components (9) to (11) are mixed and dissolved, heated to 75 ° C., added to the above oil phase components, and uniformly emulsified by a homomixer. After cooling, at 40 ° C., the component (12) is dissolved in (13), added, mixed and homogenized.

【0041】 実施例 O/W型乳剤性軟膏 (1)白色ワセリン 25.0(重量%) (2)ステアリルアルコール 15.0 (3)ラウリル硫酸ナトリウム 1.0 (4)パラオキシ安息香酸ブチル 0.3 (5)精製水 57.7 (6)酸化型グルタチオンイソプロピルエステル 0.95 アスパラギン酸塩 (7)NADPH 0.05 (1)〜(4)の油相成分を混合し75℃に加熱して溶解,
均一化する。75℃に加熱した(5)に油相成分を添加し
て乳化する。冷却後40℃にて、(6),(7)の成分を添
加,混合,均一化する。
Example O / W Type Emulsion Ointment (1) White Vaseline 25.0 (% by weight) (2) Stearyl Alcohol 15.0 (3) Sodium Lauryl Sulfate 1.0 (4) Butyl Paraoxybenzoate 0. 3 (5) Purified water 57.7 (6) Oxidized glutathione isopropyl ester 0.95 aspartate (7) NADPH 0.05 Mix the oil phase components of (1) to (4) and heat to 75 ° C. Dissolution,
Make uniform. The oil phase component is added to (5) heated to 75 ° C. and emulsified. After cooling, the components (6) and (7) are added, mixed and homogenized at 40 ° C.

【0042】[0042]

【発明の効果】以上詳述したように、本発明により、少
量の酸化型及び還元型のグルタチオンのアルキルエステ
ルとアミノ酸との塩類を配合することにより、非常に優
れた美白効果及び老化防止効果を発揮する皮膚外用剤を
提供することができる。本発明に係る皮膚外用剤におい
ては、有効成分であるグルタチオン類が良好に表皮,真
皮及び表皮基底層のメラノサイトに到達でき、低濃度の
配合で優れた老化防止効果及び美白効果を示す。従っ
て、皮膚刺激性や感作性の発現するおそれがない。
As described in detail above, according to the present invention, by adding a small amount of an oxidized or reduced glutathione alkyl ester and a salt of an amino acid, a very excellent whitening effect and anti-aging effect can be obtained. A skin external preparation that exerts its effects can be provided. In the external preparation for skin according to the present invention, glutathiones, which are active ingredients, can reach the melanocytes of the epidermis, dermis and basal layer of the epidermis, and exhibit excellent anti-aging and whitening effects at low concentrations. Therefore, there is no possibility that skin irritation or sensitization is exhibited.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明で用いる酸化型及び還元型のグルタチオ
ンのアルキルエステルとアミノ酸との塩類と、グルタチ
オン類のメラニン色素白色化作用を示す図である。
FIG. 1 is a diagram showing salts of an oxidized and reduced glutathione alkyl ester and an amino acid used in the present invention, and the melanin pigment whitening action of glutathiones.

【図2】本発明で用いる酸化型及び還元型のグルタチオ
ンのアルキルエステルとアミノ酸との塩類、グルタチオ
ン類の活性酸素種による細胞傷害防御作用を示す図であ
る。
FIG. 2 is a graph showing the cytotoxicity-protective effect of oxidized and reduced glutathione alkyl esters and amino acids used in the present invention, and glutathiones by reactive oxygen species.

【符号の説明】[Explanation of symbols]

1.作用例1 2.作用例2 3.作用例3 4.作用例4 5.作用例5 6.作用例6 7.作用例7 8.比較例1 9.比較例2 1. Operation example 1 2. Example 2 of operation 3. Operation example 3 4. Operation example 4 5. Example of operation 5 6. Operation example 6 7. Operation example 7 8. Comparative Example 1 9. Comparative Example 2

フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 FI 技術表示箇所 A61K 31/195 AED A61K 31/195 AED AGA AGA 31/215 ADS 31/215 ADS 31/70 AGZ 31/70 AGZ 38/00 ADA 37/02 ADA Continued on the front page (51) Int.Cl. 6 Identification number Agency reference number FI Technical display A61K 31/195 AED A61K 31/195 AED AGA AGA 31/215 ADS 31/215 ADS 31/70 AGZ 31/70 AGZ 38/00 ADA 37/02 ADA

Claims (6)

【特許請求の範囲】[Claims] 【請求項1】酸化型及び還元型のグルタチオンのアルキ
ルエステルとアミノ酸との塩類から選ばれる化合物の1
種又は2種以上を配合してなる皮膚外用剤。
1. A compound selected from salts of oxidized and reduced glutathione alkyl esters and amino acids.
An external preparation for skin comprising a mixture of two or more species.
【請求項2】酸化型グルタチオンのアルキルエステルと
アミノ酸との塩類から選ばれる化合物の1種又は2種以
上と、還元型ニコチンアミドアデニンジヌクレオチド
(NADH)及び/又は還元型ニコチンアミドアデニン
ジヌクレオチドリン酸(NADPH)とを併用してなる
皮膚外用剤。
2. One or more compounds selected from salts of alkyl esters of oxidized glutathione and amino acids, reduced nicotinamide adenine dinucleotide (NADH) and / or reduced nicotinamide adenine dinucleotide An external preparation for skin which is used in combination with an acid (NADPH).
【請求項3】アミノ酸が、タウリン,γ−アミノ酪酸,
ピログルタミン酸,グリシン,アラニン,アスパラギン
酸,グルタミン酸から選ばれた1種又は2種以上である
ことを特徴とする請求項1又は請求項2に記載の皮膚外
用剤。
(3) the amino acid is taurine, γ-aminobutyric acid,
The external preparation for skin according to claim 1 or 2, wherein the external preparation is one or more selected from pyroglutamic acid, glycine, alanine, aspartic acid, and glutamic acid.
【請求項4】酸化型及び還元型グルタチオンのアルキル
エステルのアルキル基若しくはアルケニル基の炭素数
が、1〜12までの炭素原子を含むことを特徴とする請
求項1〜請求項3に記載の皮膚外用剤。
4. The skin according to claim 1, wherein the alkyl or alkenyl group of the alkyl ester of oxidized or reduced glutathione has 1 to 12 carbon atoms. External preparation.
【請求項5】酸化型及び還元型グルタチオンのアルキル
エステルのアルキル基若しくはアルケニル基の炭素数
が、1〜6までの炭素原子を含むことを特徴とする請求
項1〜請求項3に記載の皮膚外用剤。
5. The skin according to claim 1, wherein the alkyl group or alkenyl group of the alkyl ester of oxidized or reduced glutathione has 1 to 6 carbon atoms. External preparation.
【請求項6】皮膚外用剤が化粧料であることを特徴とす
る請求項1〜請求項6に記載の皮膚外用剤。
6. The external preparation for skin according to claim 1, wherein the external preparation for skin is a cosmetic.
JP23970296A 1996-08-21 1996-08-21 Topical skin preparation Expired - Fee Related JP4002313B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23970296A JP4002313B2 (en) 1996-08-21 1996-08-21 Topical skin preparation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23970296A JP4002313B2 (en) 1996-08-21 1996-08-21 Topical skin preparation

Publications (2)

Publication Number Publication Date
JPH1059839A true JPH1059839A (en) 1998-03-03
JP4002313B2 JP4002313B2 (en) 2007-10-31

Family

ID=17048659

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23970296A Expired - Fee Related JP4002313B2 (en) 1996-08-21 1996-08-21 Topical skin preparation

Country Status (1)

Country Link
JP (1) JP4002313B2 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002076490A1 (en) * 2001-02-08 2002-10-03 Novelos Therapeutics, Inc. Compounds comprising disulfide-containing peptides and nitrogenous bases, and medical uses thereof
JP2003500472A (en) * 1999-05-27 2003-01-07 サントゥル ナショナル ドゥ ラ ルシェルシュ シャーンティフィク(セ エン エール エス) New antioxidants and their preparation and use
WO2004010968A1 (en) * 2002-07-31 2004-02-05 Yu Ruey J Non-amphoteric glutathione derivative compositions for topical application
US7169412B2 (en) 1998-11-23 2007-01-30 Novelos Therapeutics, Inc. Methods for production of the oxidized glutathione composite with cis-diamminedichloroplatinum and pharmaceutical compositions based thereof regulating metabolism, proliferation, differentiation and apoptotic mechanisms for normal and transformed cells
JP2008024600A (en) * 2006-07-18 2008-02-07 Naris Cosmetics Co Ltd Inhibitor for acrolein adduct formation, skin anti-aging external preparation and anti-aging food and beverage containing the same
JP2014227393A (en) * 2013-05-24 2014-12-08 株式会社ノエビア Skin-whitening agent
CN110638827A (en) * 2019-10-17 2020-01-03 泓博元生命科技(深圳)有限公司 Application of NADH and its salt in preparing skin pigment inhibitor
CN114557912A (en) * 2022-03-08 2022-05-31 广州市万千粉丝化妆品有限公司 Application of nicotinamide adenine dinucleotide reduced coenzyme I (NADH) in anti-aging cosmetics

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101724604B1 (en) * 2015-12-11 2017-04-07 재단법인 아산사회복지재단 Whitening cosmetic composition to the skin containing GSH-MEE(Reduced glutathione monoethyl ester)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7169412B2 (en) 1998-11-23 2007-01-30 Novelos Therapeutics, Inc. Methods for production of the oxidized glutathione composite with cis-diamminedichloroplatinum and pharmaceutical compositions based thereof regulating metabolism, proliferation, differentiation and apoptotic mechanisms for normal and transformed cells
JP2003500472A (en) * 1999-05-27 2003-01-07 サントゥル ナショナル ドゥ ラ ルシェルシュ シャーンティフィク(セ エン エール エス) New antioxidants and their preparation and use
WO2002076490A1 (en) * 2001-02-08 2002-10-03 Novelos Therapeutics, Inc. Compounds comprising disulfide-containing peptides and nitrogenous bases, and medical uses thereof
WO2004010968A1 (en) * 2002-07-31 2004-02-05 Yu Ruey J Non-amphoteric glutathione derivative compositions for topical application
JP2008024600A (en) * 2006-07-18 2008-02-07 Naris Cosmetics Co Ltd Inhibitor for acrolein adduct formation, skin anti-aging external preparation and anti-aging food and beverage containing the same
JP2014227393A (en) * 2013-05-24 2014-12-08 株式会社ノエビア Skin-whitening agent
CN110638827A (en) * 2019-10-17 2020-01-03 泓博元生命科技(深圳)有限公司 Application of NADH and its salt in preparing skin pigment inhibitor
CN114557912A (en) * 2022-03-08 2022-05-31 广州市万千粉丝化妆品有限公司 Application of nicotinamide adenine dinucleotide reduced coenzyme I (NADH) in anti-aging cosmetics

Also Published As

Publication number Publication date
JP4002313B2 (en) 2007-10-31

Similar Documents

Publication Publication Date Title
JP2565513B2 (en) Topical drug for suppressing melanin production
JP2929304B2 (en) Skin whitening preparation for external use
JPH0449212A (en) External preparation of suppressing melanogenesis
JP4685751B2 (en) Whitening cosmetics
TW201811308A (en) Composition for skin whitening comprising mannosylerythritol lipid, cosmetic composition and skin external use composition
JP4002313B2 (en) Topical skin preparation
JP2007332066A (en) Tyrosinase production inhibitor
JP2005120023A (en) Skin care preparation
JPH09157153A (en) Preparation for external use for skin
JP5669436B2 (en) Composition
JP4685716B2 (en) Whitening cosmetics
KR100419527B1 (en) Use of sulfites and metabisulfites for manufacturing cosmetic or pharmaceutical compositions, notably in dermatology, with melanogenesis-inhibiting effect or with depigmenting activity
JP3645318B2 (en) Anti-aging skin external preparation
JP2002241254A (en) Whitening cosmetic
JP2011241164A5 (en)
EP2123254A1 (en) Composition for external application to skin
JP5279209B2 (en) Topical skin preparation
JP2003137716A (en) Skin care preparation
WO2006137129A1 (en) Skin preparation for external use
JPH0930953A (en) Dermal preparation for external use
JP4842550B2 (en) Tyrosinase activity inhibitor, melanin production inhibitor, and skin whitening external preparation
JP3380261B2 (en) Cosmetics
JPH0873312A (en) External preparation for skin
JP2008007436A (en) Beautifully whitening cosmetic
JP2001058951A (en) Skin preparation for external use for bleaching

Legal Events

Date Code Title Description
A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20040318

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20040325

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20040524

RD02 Notification of acceptance of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7422

Effective date: 20040524

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20040706

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20040902

A911 Transfer of reconsideration by examiner before appeal (zenchi)

Free format text: JAPANESE INTERMEDIATE CODE: A911

Effective date: 20040915

A912 Removal of reconsideration by examiner before appeal (zenchi)

Free format text: JAPANESE INTERMEDIATE CODE: A912

Effective date: 20041210

RD05 Notification of revocation of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7425

Effective date: 20070601

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20070817

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100824

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100824

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110824

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110824

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120824

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120824

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130824

Year of fee payment: 6

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees