EP2691074A1 - Composition a base de camellia japonica et polygonum hydropiper pour protection de la peau - Google Patents
Composition a base de camellia japonica et polygonum hydropiper pour protection de la peauInfo
- Publication number
- EP2691074A1 EP2691074A1 EP12720228.1A EP12720228A EP2691074A1 EP 2691074 A1 EP2691074 A1 EP 2691074A1 EP 12720228 A EP12720228 A EP 12720228A EP 2691074 A1 EP2691074 A1 EP 2691074A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- extract
- camellia japonica
- skin
- composition according
- polygonum hydropiper
- 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.)
- Withdrawn
Links
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- CRPCXAMJWCDHFM-UHFFFAOYSA-M sodium;5-oxopyrrolidine-2-carboxylate Chemical compound [Na+].[O-]C(=O)C1CCC(=O)N1 CRPCXAMJWCDHFM-UHFFFAOYSA-M 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 229940032094 squalane Drugs 0.000 description 1
- 210000004304 subcutaneous tissue Anatomy 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000000475 sunscreen effect Effects 0.000 description 1
- 239000000516 sunscreening agent Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 210000000106 sweat gland Anatomy 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- 239000001648 tannin Substances 0.000 description 1
- 235000018553 tannin Nutrition 0.000 description 1
- 229920001864 tannin Polymers 0.000 description 1
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 1
- 229940061605 tetrasodium glutamate diacetate Drugs 0.000 description 1
- UZVUJVFQFNHRSY-OUTKXMMCSA-J tetrasodium;(2s)-2-[bis(carboxylatomethyl)amino]pentanedioate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]C(=O)CC[C@@H](C([O-])=O)N(CC([O-])=O)CC([O-])=O UZVUJVFQFNHRSY-OUTKXMMCSA-J 0.000 description 1
- 125000003831 tetrazolyl group Chemical group 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 230000008364 tissue synthesis Effects 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 229940042585 tocopherol acetate Drugs 0.000 description 1
- 229930003802 tocotrienol Natural products 0.000 description 1
- 239000011731 tocotrienol Substances 0.000 description 1
- 235000019148 tocotrienols Nutrition 0.000 description 1
- FGMPLJWBKKVCDB-UHFFFAOYSA-N trans-L-hydroxy-proline Natural products ON1CCCC1C(O)=O FGMPLJWBKKVCDB-UHFFFAOYSA-N 0.000 description 1
- ZCIHMQAPACOQHT-ZGMPDRQDSA-N trans-isorenieratene Natural products CC(=C/C=C/C=C(C)/C=C/C=C(C)/C=C/c1c(C)ccc(C)c1C)C=CC=C(/C)C=Cc2c(C)ccc(C)c2C ZCIHMQAPACOQHT-ZGMPDRQDSA-N 0.000 description 1
- 230000014616 translation Effects 0.000 description 1
- 229960001727 tretinoin Drugs 0.000 description 1
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
- 150000003648 triterpenes Chemical class 0.000 description 1
- 230000035899 viability Effects 0.000 description 1
- 210000001835 viscera Anatomy 0.000 description 1
- 235000019154 vitamin C Nutrition 0.000 description 1
- 239000011718 vitamin C Substances 0.000 description 1
- 150000003722 vitamin derivatives Chemical class 0.000 description 1
- 239000000341 volatile oil Substances 0.000 description 1
- 239000007762 w/o emulsion Substances 0.000 description 1
- 230000004584 weight gain Effects 0.000 description 1
- 235000019786 weight gain Nutrition 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
- OENHQHLEOONYIE-JLTXGRSLSA-N β-Carotene Chemical compound CC=1CCCC(C)(C)C=1\C=C\C(\C)=C\C=C\C(\C)=C\C=C\C=C(/C)\C=C\C=C(/C)\C=C\C1=C(C)CCCC1(C)C OENHQHLEOONYIE-JLTXGRSLSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/96—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution
- A61K8/97—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution from algae, fungi, lichens or plants; from derivatives thereof
- A61K8/9783—Angiosperms [Magnoliophyta]
- A61K8/9789—Magnoliopsida [dicotyledons]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K36/00—Medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicines
- A61K36/18—Magnoliophyta (angiosperms)
- A61K36/185—Magnoliopsida (dicotyledons)
- A61K36/70—Polygonaceae (Buckwheat family), e.g. spineflower or dock
- A61K36/704—Polygonum, e.g. knotweed
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K36/00—Medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicines
- A61K36/18—Magnoliophyta (angiosperms)
- A61K36/185—Magnoliopsida (dicotyledons)
- A61K36/82—Theaceae (Tea family), e.g. camellia
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P17/00—Drugs for dermatological disorders
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q19/00—Preparations for care of the skin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q19/00—Preparations for care of the skin
- A61Q19/08—Anti-ageing preparations
Definitions
- the present invention relates to a novel cosmetic and / or dermatological composition intended to ensure the protec ⁇ of the epidermis, and more particularly a composition containing extract of Camellia japonica having a protective effect on the skin, particularly an effect prevention and treatment of stretch marks.
- the skin is a real organ comprising a plurality of integrated layers, from super ficial ⁇ layer, the epidermis, to the deeper layers, the dermis and hypodermis, each has specific properties enabling the whole to react and adapt to the conditions of his environment.
- the epidermis composed mainly of keratinocytes (90% of epidermal cells), melanocytes (2 to 3% of epidermal cells) and Langerhans cells, has a variable thickness depending on the different parts of the body. Since it constitutes the outer layer of the skin, the epidermis plays a fundamental role in ensuring the protection and maintenance of good trophicity. This is why many compositions have been developed to protect and improve its functions, including strengthening its elasticity and firmness.
- the dermis thicker, solid, rich in nerves, blood vessels and sweat glands, consists mainly of collagen, elastin and proteoglycans. These three types of molecules are synthesized by dermal fibroblasts. Collagen fibers, which repre ⁇ tent 70% of the dry weight of the dermis, ensure the mechanical strength and texture of the skin, elastin is responsible for the elasticity, and proteoglycans play a major role structure and hydration of the skin. Other cells such as macrophages and leucocytes are also present in the dermis layer.
- the hypodermis which is the deepest layer of skin, contains lipid-producing fat cells so that the subcutaneous tissue makes a fat layer that protects muscles, bones, and internal organs from shock.
- the skin, and each of its constituent layers, can suffer damage caused by internal or external causes, for example aging and excessive stretching.
- the aging of the skin is manifested by signs such as the formation of more or less deep and extensive wrinkles, in addition to a loss of elasticity and thinning.
- the appearance of the first wrinkles is a phenomenon that can be aggravated by physical or chemical aggression from pollution, exposure to ultraviolet rays or lifestyles that accelerate skin aging.
- MMP-1 collagenase fibroblast
- MMP-2 gelatinase A
- MMP-9 gelatinase B
- MMP-9 gelatinases
- MMP-9 gelatinases
- MMP-9 stromelysin-1
- MMP-7 matrilysin
- striae distensae or striae atrophicae which are small ridges or chippers ⁇ rures elongated, often in length between about 5 and 15 cm, due to an atrophy of the cutaneous network which does not withstand significant distensions to which the skin can be subjected under particular conditions.
- This skin condition is mainly found in pregnant women in the abdomen, but it can also occur in obese people in the case of rapid weight gain. It has long been considered as caused by a mechanical effect causing the distention of the skin, but it is now estimated that it may also be due to hyperfunctioning of the adrenal glands (Cushing's syndrome).
- Treatment with corticosteroids may result in the formation of stretch marks by disrupting the biosynthesis of dermal fibroblasts, resulting in a decrease in collagen, elastin and proteoglycan formation, partial inhibition of hyaluronic acid synthesis, and chondroitin sulfate, as well as impaired protein production.
- the formation of stretch marks is generally accompanied by a phenomenon ⁇ flam matory. These effects result in rupture of the conjunctive tissue.
- Stretch marks can affect relatively large areas of the skin, appearing as purplish-red streaks that evolve over time to a lighter color. They provide an unsightly effect that can have negative psychological consequences in some subjects and it is therefore important to be able to develop treatments that can prevent, mask or eliminate them.
- patent application WO 0019974 describes the use of soy peptides and tripeptides consisting of glycine, histidine and lysine for the prevention and treatment of stretch marks on the skin.
- US Pat. No. 7,429,386 describes the treatment of stretch marks by local administration of botulinum toxin intradermally.
- FR-A-2 848 116 discloses a cosmetic and / or dermatological composition based on Siegesbeckia extract acting as an inhibitor of matrix metalloproteinases, in combination with lipopeptides for the treatment and prevention of wrinkles and loss of elasticity of the skin.
- the application WO-A-2007/144518 describes the use of a mimosa seed extract, in particular from the Acacia dealbata, Acacia farnesiana or Acacia decurrens species, which has the effect of strongly promoting the synthesis of collagens.
- Camellia japonica commonly known as camellia, is a plant of the family Theaceae native to East and Southeast Asia, including Japan, Korea and China, in the form of a shrub that can reach 6 to 7 m.
- Camellia japonica is well known for the quality and beauty of its red or pink flowers.
- the seeds of Camellia japonica have been used for their anti-inflammatory activity, and the flowers for their haemostatic effect in the treatment of hematemesis.
- Studies have shown the presence of saponins in fruits and seeds, triterpenoids in the roots, and flavonol glycosides in the leaves, exhibiting antioxidant properties, as described by K. Onodera et al., Biosc.
- Patent FR 2815862 describes an anti-aging composition combining an extract of Camellia (for example C. sinensis) and a carotenoid such as - and ⁇ -carotene and lycopene. This association would have potentiated effects of stimulation of collagen synthesis, but no experimental results are provided.
- Polygonum hydropiper commonly known as water pepper, is a plant of the family of polygonaceae rich in tannins and flavonic derivatives. It also contains an essential oil and sesquiterpene aldehydes which give it its burning flavor justifying its common name of water pepper. It has been described as having hemostatic, diuretic and hypotensive activity. Polygonum hydropiper root extracts would have activity against fertility, as written by S.K. Garg et al., J. Reprod. Fert. 29, 521-423 (1972). The antibacterial activity and hydrating effect of Polygonum hydropiper (or Persicaria hydropiper) was also mentioned by Kim Jung Eun et al., Korean J. Microbiology and Biotechnology, vol. 38, pp. 112-115 (2010).
- compositions of the invention are distinguished in that they comprise an extract of a plant of the species Camellia japonica in association with an extract of a plant of the species Polygonum hydropiper in an amount effective to provide a protection of the epidermis against the signs of skin aging and against stretch marks, as well as acceptable carriers and excipients in dermatology and cosmetology.
- the present invention therefore relates to a new cosmetic and / or dermatological composition based on Camellia japonica, and more particularly based on Camellia japonica extract, in association with extracts of Polygonum hydropiper.
- Such a composition has excellent properties used in cosmetics and dermatology for the protection of the skin, not only against the signs of skin aging but also against stretch marks.
- the present invention also relates to a topical composition based on the combination of an extract of Camellia japonica and an extract of Polygonum hydropiper for the prevention and treatment of signs of skin aging and stretch marks.
- the present invention also relates to a non-therapeutic cosmetic method for preventing and combating the signs of skin aging and stretch marks on the skin, comprising applying to the areas of the skin concerned a topical composition containing an effective amount of the combination of extract of Camellia japonica and Polygonum hydropiper extract according to the present invention.
- the invention also relates to a pharmaceutical composition based on an extract of Camellia japonica and an extract of Polygonum hydropiper for the protection of the epidermis and more particularly the prevention and treatment of stretch marks.
- compositions according to the present invention distin ⁇ Guent in that they comprise an extract of Camellia japonica in combination with an extract from Polygonum hydropiper in an amount effective to provide skin protection, as well as carriers and excipients acceptable in dermatology and in cosmetology.
- topical compositions of the invention based on extracts of Camellia japonica and extract of Polygonum hydropiper can be advantageously used in dermatology and cosmetology for the treatment or prevention of signs of skin aging and stretch marks.
- the tests carried out by the applicant have shown that among the various parts of the plant, it is preferable to use the aerial parts and in particular the leaves.
- the species Camellia japonica is readily available and leaf conservation does not usually raise technical difficulties.
- the extracts of Camellia japonica used in the compositions according to the present invention are preferably obtained in the form of an aqueous extract from the aerial parts of the plant previously dried, crushed to a fine powder that is left to macerate in water for about 12 to 14 hours.
- the extract that can be used in the invention is obtained by maceration from crushed and reduced Camellia japonica leaves into a powder which is left to macerate in water in a powder / water ratio of 40% by weight.
- the product is then decanted, expressed and filtered.
- the aqueous extract of Camellia japonica is in the form of a yellow to amber liquid, with a characteristic odor, soluble in water and in ethanol, characterized by:
- the amount of polyphenols per 100 g of extract is between 0.0085 and 0.0425.
- the invention is obtained from the aerial parts of the plant, preferably in the form of aqueous extracts after maceration of the previously dried and milled plant.
- the tips (leaves and stems) or the leaves of Polygonum hydropiper which are dried, crushed and reduced to powder, are used. which is macerated in water, the powder / water ratio being 40%, about 24 hours. After decantation, expression and filtration, the filtrate is atomized and the powder obtained is diluted to 50% with maltodextrin.
- the aqueous extract of Polygonum hydropiper is in the form of a beige-to-brown powder of characteristic odor, soluble in water, characterized by: pH (1% solution) between 4.9 - 6, 9
- the extracts used in the compositions of the invention are in the range of 0.05 to 2.0% for Polygonum hydropiper and 0.1 to 10.0% for Camellia japonica based on the total weight of the composition. .
- the extracts may be blended to be incorporated into the composition and the amount of mixture used is generally between 0, 1 and 12% by weight relative to the total weight of the compo sition ⁇ .
- the extracts of Camellia japonica leaves and the extracts of Polygonum hydropiper included in the compositions according to the present invention have shown, in vitro tests, protective effects of the epidermis, and more particularly:
- the tests were carried out using samples assayed at 0.5% Polygonum piper extract, 5% Camellia japonica, and a combination of the two extracts on human fibroblasts cultured epidermis and reconstituting ⁇ killed (Skinethic ®).
- MMP1 metalloproteinases 1
- MMP2 metalloproteinases 2
- MMP9 metalloproteinases 9
- compositions according to the invention may contain, in addition to an extract of Camellia japonica leaves and an extract of Polygonum hydropiper, secondary active agents which advantageously complement their activity, and which are compatible, that is to say, not capable of reacting on each other. others or to mask or limit their respective effects. More particularly, the secondary active agents may be chosen from a mimosa seed extract and a marigold extract that favorably affect the stimulation of neoformed collagens, Centella asiatica, monomethylsilanol, proline, or butter. of Shea.
- composition according to the invention may comprise, for example, between 0.1 and 2% by weight of Polygonum piper extract, between 0.1 and 6% by weight of Camellia japonica extract, and, where appropriate, between 1 and and 5% by weight of mimosa seed extract and / or between 2 and 6% by weight of Centella asiatica, and / or between 0.5 and 2% by weight of monomethylsilanol and proline relative to the total weight of the composition.
- these concentrations are respecti vely ⁇ 0.2 to 1% by weight of extract of Polygonum hydropiper, 1 to 6% by weight of extract of Camellia japonica, 2 to 5% by weight of extract of mimosa seeds and between 3 and 5% by weight of Centella asiatica relative to the total weight of the composition.
- compositions of the invention may comprise between 0.1% and 10% by weight of Camellia japonica leaf extract, as defined above, relative to the total weight of the composition, and preferably between 1 and 6% by weight.
- concentration of Polygonum hydropiper extract is generally between 0.05 and 2.0%, and preferably between 0.1 and 1.0%.
- each component in the composition may be made according to the utili zation ⁇ envisaged.
- lower doses in the form of milk or cream dosed at about 1 to 6% (total of the two components), are preferably used, while spot treatment may require higher doses, for example for example a serum dosed between 6 and 12%, where, preferably, the doses of extracts of Camellia japonica and Polygonum hydropiper are higher.
- topical compositions can be used advantageously in dermatology and cosmetology for the treatment or prevention of signs of skin aging as well as for the prevention and treatment of stretch marks.
- Camellia japonica extract and Polygonum hydropiper extract according to the present invention supplemented if necessary with extracts of mimosa seeds and extracts of Centella asiatica as indicated above, used under normal conditions of use for 20 to 30 consecutive days, to treat stretch marks, demonstrated excellent skin tolerance.
- compositions according to the present invention may be presented in the pharmaceutical forms classi ⁇ cally used for topical application, that is to say in the form of lotion, gel, emulsion (especially cream or milk), mask, ointment, nanocapsules, liposomes or transdermal patches, containing compatible and pharmaceutically acceptable excipients and common carriers. They are preferably used in the form of creams, milk serum and lotion.
- Topical administration are prepared by the usual techniques, and for example, in the case of a cream, by dispersion of a fatty phase in an aqueous phase to obtain an oil-in-water emulsion, or conversely to prepare a water-in-oil emulsion.
- creams it is preferred to use lamellar structure emulsions containing little or no ethoxylated products.
- an aqueous extract preferably a hydroglycolic extract.
- the topical compositions according to the invention may comprise excipients suitable for external topical administration, in particular dermatologically and cosmetologically acceptable excipients.
- excipients suitable for formulation are well known to those skilled in the art and include in particular penetrating agents such as ethoxydiglycol, phytantriol, octyl dodecanol and escin; thickeners such as natural gums and synthetic polymers; emollients and surfactants such as cetearyl octanoate, isopropyl myristate, cetearyl isononanoate, dimethicone, cyclomethicone, polyglyceryl 3-diisostearate, hydrogenated polyisobutene, cetyl alcohol, cetyl palmitate, cetyl phosphate; emulsifiers; the conser ⁇ vados such as phenoxyethanol, methyl paraben (methylparaben), ethyl para-hydroxybenzoate (eth
- moisturizing agents such as propylene glycol, glycerine, butylene glycol, sodium salt of pyrrolidone carboxylic acid (PCA sodium), and also antioxidant vitamins such as vitamin E, for example tocopherol acetate or tocotrienol, vitamin C, natural polyphenols.
- PCA sodium pyrrolidone carboxylic acid
- antioxidant vitamins such as vitamin E, for example tocopherol acetate or tocotrienol, vitamin C, natural polyphenols.
- skin conditioning agents such as nylon and boron nitride to the composition, as well as agents for protecting against ultraviolet rays, and for example hydrophilic or lipophilic UV-A and UV-B sunscreens.
- benzophenone or a benzophenone derivative such as 2-hydroxy-4-methoxy-benzophenone (Eusolex® 4360), or a cinnamic acid ester and more particularly octyl methoxymethylate (Eusolex® 2292) 2-ethylhexyl methoxycinnamate (Parsol MCX®), or a cyano- ⁇ , ⁇ -diphenylacrylate such as octocrylene (Eusolex® OCR), 4-methylbenzylidene camphor (Eusolex 6300®), and dibenzoylmethane derivatives such as 4-isopropyl dibenzoylmethane (Eusolex 8020), t-butyl-methoxy dibenzoylmethane (Parsol 1789®), and 4-methoxy-dibenzoylmethane. It is also possible to use anti-ultraviolet screen pigments, such as, for example, titanium dioxide, zinc
- an anti-stretch mark milk having the following weight composition is prepared.
- the extract of Camellia japonica used in the compo sition ⁇ above is an aqueous extract obtained by treating crushed leaves and powdered.
- the extract of Polygonum hydropiper is a dry extract.
- the fatty phase A is heated to 70-75 ° C while the aqueous phase B is heated to 75 ° C, then the two phases are thoroughly mixed with stirring.
- the extracts and perfumes are added to the mixture at a temperature of 40 ° C and the pH is adjusted to 6.2 by adding potassium hydroxide or citric acid.
- Example 2 The milk having the composition indicated above can be used in application on stretch marks, one to two times per day.
- Example 2 The milk having the composition indicated above can be used in application on stretch marks, one to two times per day.
- a firming lotion having the following weight composition is prepared.
- Centella asiatica extract 5 Centella asiatica extract 5 00
- Camellia japonica extract 3 00
- Levulinic acid and sodium levulinate 0, 60
- the lotion is prepared by making the polymer gel in water, neutralizing and adding the rest of the components cold.
- a firming cream having the following weight composition is prepared.
- phase A The hydrogenated lecithin is hydrated in water at 75 ° C and then the other ingredients of phase A are added and mixed.
- Phase B previously homogenized under a cooled turbine, is added at 78 ° C., then the other phases are successively added at 40 ° C., the mixture is mixed and cooled progressively.
- the cream having the composition indicated above is used in application on the face, once a day at bedtime for a period of 1 to 3 months.
- the fibroblast cultures were established in the usual manner, the fibroblasts having been seeded in 6-well plates at the rate of 10 5 cells per ml, and then incubation for 24 hours.
- Lot 2 treatment with Polygonum hydropiper 0.5%
- Lot 3 treatment with Camellia japonica 5%
- Lot 4 treatment with the combination Polygonum hydropiper 0.5% + Camellia japonica 5%.
- the cell viability was determined by the Formazan blue reduction test (MTT test).
- MTT test Formazan blue reduction test
- the wells containing them are emptied and the cell mat is rinsed with the culture medium.
- 200 ⁇ l of a solution of MTT (3- (4,5-dimethylthiazol-2-yl) -2,5-diphenyltetrazolium bromide) at 5 mg / ml are dispensed into all wells and the plates are incubated. at 37 ° C for 3 hours.
- the wells are again emptied by inversion, and the cellular mat is fixed for 1 minute with 200 ⁇ l of formo-calcium solution.
- the cells are then lysed and the Formazan blue crystals are dissolved with 200 ⁇ l of dimethylsulfoxide.
- the optical density (OD) of the plates is read, after homogenization of the staining by stirring, using a spectrophotometer at 570 nm, thus making it possible to know the relative quantity of living and metabolically active cells.
- optical density (OD) after 24 hours of contact is shown in the table below.
- Keratinocytes of human origin were inoculated on 0.5 cm 2 polycarbonate filters in a defined medium (modified MCDB 153) and supplemented. The cells have been cultured for 14 days at the air / liquid interface, the culture medium being changed every two days. The epidermis thus formed were used in the study from the 17th day of culture.
- the test was performed in duplicate for each experimental time of 6 and 24 hours.
- MDA malondialdehyde
- the experimental protocol is the same as that of Example 4 above, with the exception of the constitution of the batches, each test being performed in duplicate after 24 hours of contact of the extracts studied with the reconstituted epidermis.
- Lot 2 positive control epidermis treated with hypoxanthine / xanthine oxidase.
- Lot 3 epidermis treated with vitamin E + hypoxanthine / xanthine oxidase.
- Camellia japonica 5% Camellia japonica 5%.
- HXO Camellia + hypoxanthine / xanthine oxidase
- the cell homogenates are resuspended in:
- the MDA is assayed by fluorescence measurement, after separation of the MDA-TBA complex by HPLC chromatography, using a Jasco 821-FI detector with excitation at 515 nm and emission at 553 nm, with eluent methanol: water (40:60 v / v), the pH being adjusted to 8.3 by 1M KOH.
- Protein assay is performed according to the Bradford method. The increase in absorbance at 595 nm is propor ⁇ tional to the protein concentration determined using a Unicam 8625 spectrophotometer.
- HXO hypoxanthine / xanthine oxidase
- MMP1, MMP2 and MMP9 on human fibroblasts in culture.
- the fibroblast cultures are identical to those of Example 4 above.
- the four batches used are the same as in Example 4.
- the test was conducted in triplicate after 24 hours of contact of the products studied with human fibroblasts in culture.
- the MMP2 assay was performed by the ELISA kit at the level of the culture medium. The results are summarized in the table below.
- the invention was made on the same human fibroblasts in culture as those of Example 4 above.
- the test was conducted in triplicate after 24 hours of contact of the products studied with human fibroblasts in culture, in the presence of substrate N-succinyl triananine paranothroanilide (SANA).
- SANA substrate N-succinyl triananine paranothroanilide
- the fibroblasts were seeded in multiwell plates at 10 5 cells per well. They were then incubated with 2% FCS and RMPI for 24 hours, then the FCS was replaced by 0.2% BSA and the cells were incubated for 24 hours in the presence of the products studied. At the end of treatment, the cells were scraped off and the enzymes were extracted from the cell pellet using 0.1% Triton X-100 in Tris-HCl buffer at pH 8, Brij 0, 1% and 20%. ⁇ of a solution of SANA (125 mM) in N-ethyl pyrrolidone. The reaction was initiated at 37 ° C. and stopped by addition of 50 ⁇ l of acetic acid. The results are summarized in the table below.
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Abstract
Description
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Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1152749A FR2973246B1 (fr) | 2011-03-31 | 2011-03-31 | Composition a base de camellia japonica pour la protection de la peau. |
| PCT/FR2012/050677 WO2012172199A1 (fr) | 2011-03-31 | 2012-03-29 | Composition a base de camellia japonica et polygonum hydropiper pour protection de la peau |
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| Publication Number | Publication Date |
|---|---|
| EP2691074A1 true EP2691074A1 (fr) | 2014-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP12720228.1A Withdrawn EP2691074A1 (fr) | 2011-03-31 | 2012-03-29 | Composition a base de camellia japonica et polygonum hydropiper pour protection de la peau |
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| Country | Link |
|---|---|
| EP (1) | EP2691074A1 (fr) |
| FR (1) | FR2973246B1 (fr) |
| WO (1) | WO2012172199A1 (fr) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6452064B2 (ja) * | 2013-10-16 | 2019-01-16 | 福岡県 | ヤナギタデスプラウト抽出物及びその製造方法、酵素活性阻害剤及び抗老化剤、並びに化粧料組成物及び機能性食品 |
| WO2018237218A1 (fr) | 2017-06-23 | 2018-12-27 | The Procter & Gamble Company | Composition et procédé permettant d'améliorer l'aspect de la peau |
| CN108403495B (zh) * | 2018-04-12 | 2021-04-13 | 上海相宜本草化妆品股份有限公司 | 一种山茶花提取物及包含该山茶花提取物的中草药化妆品 |
| KR20210011964A (ko) | 2018-07-03 | 2021-02-02 | 더 프록터 앤드 갬블 캄파니 | 피부 병태를 치료하는 방법 |
| CN110960467A (zh) * | 2019-12-30 | 2020-04-07 | 河南汇博医疗股份有限公司 | 一种无菌面膜及其制备方法 |
| CN115843238B (zh) | 2020-06-01 | 2025-06-10 | 宝洁公司 | 改善维生素b3化合物渗透到皮肤中的方法 |
| US10959933B1 (en) | 2020-06-01 | 2021-03-30 | The Procter & Gamble Company | Low pH skin care composition and methods of using the same |
| CN113419016A (zh) * | 2021-08-10 | 2021-09-21 | 四川辅正药业股份有限公司 | 一种辣蓼提取物及辣蓼的质量检测方法 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5411733A (en) | 1992-04-27 | 1995-05-02 | Hozumi; Toyoharu | Antiviral agent containing crude drug |
| FR2784029B1 (fr) | 1998-10-05 | 2001-01-05 | Pharmascience Lab | Methode de prevention et/ou de traitement cosmetique des vergetures de la peau et utilisation en dermatologie |
| FR2815862B1 (fr) * | 2000-10-26 | 2003-03-21 | Oreal | Composition comprenant l'association d'au moins un extrait d'au moins un vegetal du genre camellia et d'au moins un carotenoide |
| FR2848116B1 (fr) | 2002-12-10 | 2007-01-05 | Nuxe Lab | Composition cosmetique comprenant un inhibiteur des metallo-proteinases et un lipopeptide. |
| US7429386B2 (en) | 2004-09-03 | 2008-09-30 | Allergan, Inc. | Stretch mark treatment |
| EP1747786A3 (fr) | 2005-07-25 | 2007-04-25 | Perdix Eurogroup S.L. | Produit naturel crémeux avec des qualités anti-vitiligo |
| US20070036873A1 (en) | 2005-07-27 | 2007-02-15 | Shibnath Ghosal | Method of treatment or management of stress |
| EP2046281B1 (fr) | 2006-06-16 | 2014-08-13 | Societe De Recherche Cosmetique | Utilisation d'un extrait de graines de mimosa (d'acacia dealbta, d'acacia farnesiana ou d'acacia decurrens) dans une composition cosmetique |
| FR2944794B1 (fr) * | 2009-04-28 | 2012-06-29 | Rocher Yves Biolog Vegetale | Procede de preparation d'oligomeres de glycoside de flavonoide et utilisation en cosmetique. |
| WO2011028601A2 (fr) * | 2009-08-26 | 2011-03-10 | Mary Kay Inc. | Formulations topiques de soins de beauté comportant des extraits de plantes |
| US8268368B2 (en) | 2009-10-26 | 2012-09-18 | Apptec, Inc. | Herbal formulations for the management of chronic ulcers and wounds |
-
2011
- 2011-03-31 FR FR1152749A patent/FR2973246B1/fr active Active
-
2012
- 2012-03-29 WO PCT/FR2012/050677 patent/WO2012172199A1/fr not_active Ceased
- 2012-03-29 EP EP12720228.1A patent/EP2691074A1/fr not_active Withdrawn
Non-Patent Citations (5)
| Title |
|---|
| ALI IBN-E- ABBAAS MAJOOSI: "KAMIL-AL-SENA'AH. PART II", 2005, pages: 102 |
| DATABASE TKDL "FILFIL-UL-MAA", XP055222092, Database accession no. AH3/527 |
| DATABASE TKDL "ZIMAAD FILFIL-UL-MAA", XP055222096, Database accession no. JA7/462D |
| MOHAMMAD AZAM KHAN: "MUHEET-E-AZAM", vol. III, 1887, pages: 270 |
| See also references of WO2012172199A1 |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2973246A1 (fr) | 2012-10-05 |
| WO2012172199A1 (fr) | 2012-12-20 |
| FR2973246B1 (fr) | 2013-04-12 |
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