KR101618012B1 - Composition for preventing or improving dry eye syndrome comprising Chamaecyparis obtuse extracts - Google Patents

Composition for preventing or improving dry eye syndrome comprising Chamaecyparis obtuse extracts Download PDF

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KR101618012B1
KR101618012B1 KR1020150122854A KR20150122854A KR101618012B1 KR 101618012 B1 KR101618012 B1 KR 101618012B1 KR 1020150122854 A KR1020150122854 A KR 1020150122854A KR 20150122854 A KR20150122854 A KR 20150122854A KR 101618012 B1 KR101618012 B1 KR 101618012B1
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composition
present
extract
dry eye
eye syndrome
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정지은
박화식
위안진
어지현
최주희
노종현
윤경철
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전라남도
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K36/00Medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicines
    • A61K36/13Coniferophyta (gymnosperms)
    • A61K36/14Cupressaceae (Cypress family), e.g. juniper or cypress
    • A23L1/3002
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/0012Galenical forms characterised by the site of application
    • A61K9/0048Eye, e.g. artificial tears
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23VINDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
    • A23V2200/00Function of food ingredients
    • A23V2200/30Foods, ingredients or supplements having a functional effect on health
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2236/00Isolation or extraction methods of medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicine
    • A61K2236/30Extraction of the material

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Abstract

The present invention relates to a method for screening The present invention relates to a composition for preventing or ameliorating dry eye syndrome comprising an extract of obtusa as an active ingredient. The composition of the present invention, which is an effective component of the present invention, accelerates tear production, delays tear film breakdown time, Has the effect of preventing or ameliorating dry eye syndrome by not only delaying damage of epithelial cells but also reducing the expression level of inflammatory cytokines in the ocular surface and lacrimal gland and inhibiting infiltration of macrophages by inflammatory reaction. In addition, the extract of the present invention has no cytotoxicity and side effects, and can be safely used in a pharmaceutical composition, a quasi-drug composition or a food composition.

Description

[Technical Field] The present invention relates to a composition for preventing or improving dry eye syndromes, which comprises an extract of Chamaecyparis obtusa as an active ingredient,

The present invention relates to a composition for preventing or ameliorating dry eye syndrome comprising an extract of a cotton wool extract as an active ingredient, and more particularly to a pharmaceutical, quasi-drug or food composition for preventing or improving dry eye syndrome, .

Recently, as the use of digital products such as televisions, computers and game machines, the increase of contact lenses, and the growth of the cultural industry, modern people's eyes are abused without rest, except when sleeping. .

Dry eye syndrome is a common disease occurring in 5.5 ~ 15% of adults worldwide. It causes not only mere tears but also eye irritation and tear layer instability due to inflammation of tears and ocular surface (cornea and conjunctiva) It is known as a disease that can damage the surface. Features of this disease include ocular pain, irregular corneal surface, corneal ulcer, and decreased vision. Corneal permeability changes in chronic eye dryness and dry keratitis are well known to cause inflammation, which is known to be induced by increased inflammation mediated cytokines.

Recent studies have shown that inflammation and apoptosis of the ocular surface play a very important role in the induction of dry eye syndrome. In addition, excessive use of televisions, game machines, development of computers, and excessive use of eyes due to excessive fatigue by the examinees cause easy eye fatigue, which is the biggest cause of dry eye syndrome. One of the biggest causes of eye fatigue is stress, and stress, which is always mentioned in all common sense, adds to the fatigue of our eyes. Therefore, materials that can prevent or ameliorate dry eye syndrome by reducing eye fatigue have been studied and developed. Recently, as misuse and abuse of drugs and side effects to chemicals have become serious problems, new substitute drugs derived from natural substances Is required.

On the other hand, Chamaecyparis The phytoncide contained in the obtusa , that is, the essential oil, is a directional substance that the tree blows to protect itself from the outside environment such as various insects and bacteria, and is excellent in the ability to remove odor and harmful substances in the air , Antimicrobial / insecticidal effect, stress relieving effect, and atopy / allergy prevention. However, little is known about its role in ocular diseases such as dry eye syndrome, and there has been no report on the results of applying the extract from the eye for the purpose of ophthalmic treatment.

Accordingly, the present inventors have conducted studies to develop new substances that prevent or ameliorate dry eye syndrome. The inventors of the present invention have found that the monoprotein extract promotes tear production in eye dry animal models, delays tear film breakdown time, and delays corneal epithelial cell damage In addition, the present inventors have found that dry eye syndrome can be effectively used for preventing or improving ocular surface and lacrimal gland by reducing inflammatory cytokines and inhibiting infiltration of macrophages by inflammatory reaction, thus completing the present invention.

It is an object of the present invention to provide a composition for preventing or ameliorating dry eye syndrome comprising an extract of Prunus mume as an active ingredient.

It is another object of the present invention to provide a pharmaceutical composition, a quasi-drug composition or a food composition for preventing or ameliorating dry eye syndrome comprising the composition.

The present invention provides a composition for the prevention or amelioration of dry eye syndrome comprising an extract of Prunus mume as an active ingredient.

In the present invention, the above-mentioned extract is preferably at least one selected from the group consisting of trunks, branches, leaves, fruits, bark and roots of temperate trees, preferably dried and powdered Next, extraction can be carried out by an extraction method known in the art, for example, a direct extraction method using an extraction solvent, a steam distillation method, a supercritical fluid extraction method, or a cold pressing method. In one specific embodiment of the present invention, supercritical fluid extraction was used.

In the case of extracting the textiles extract using an extraction solvent, the extraction solvent may be, for example, water, anhydrous or lower alcohol having 1 to 4 carbon atoms (methanol, ethanol, propanol, butanol, n-propanol, iso- A polar solvent comprising normal-butanol, 1-pentanol, 2-butoxyethanol or ethylene glycol), acetic acid, dimethylformamide (DMFO) or dimethyl sulfoxide (DMSO); Or acetone, acetonitrile, ethyl acetate, methyl acetate, fluoroalkane, pentane, hexane, 2,2,4-trimethylpentane, decane, cyclohexane, cyclopentane, diisobutylene, Butene, 1-chloropentane, o -xylene, diisopropyl ether, 2-chloropropane, toluene, 1-chloropropane, chlorobenzene, benzene, diethyl ether, diethylsulfide, chloroform, dichloromethane, - Non-polar solvents including dichloroethane, anniline, diethylamine, ether, carbon tetrachloride and THF may be used.

In addition to the above-mentioned extraction method using the above-mentioned extraction solvent, the above-mentioned antler extraction can also be obtained through a conventional purification process. For example, by separation using an ultrafiltration membrane having a constant molecular weight cut-off value, separation by various chromatographies (made for separation by size, charge, hydrophobicity or affinity), and the like, The extract can also be obtained through fractionation.

In the present invention, the flatulence extract may be any extract, fraction and purified product obtained in each step of extraction or purification (separation, fractionation), diluted solution thereof, concentrate or dried product thereof.

In the present invention, the extract of the above-mentioned method according to the present invention promotes tear production, delays tear film breakdown time, delays corneal epithelial cell damage, and inhibits inflammatory cytokines Decrease the expression level of cyne and inhibit macrophage infiltration by inflammatory reaction.

Therefore, the composition comprising the extract of the present invention as an active ingredient can be usefully used for preventing or improving dry eye syndrome.

Since the composition of the present invention is extracted from a natural plant material, which is extracted from a natural plant material, there is no adverse effect on the human body even when the composition is administered in an excessive amount. Therefore, the quantitative upper limit of the composition of the present invention can be selected by a person skilled in the art .

In a preferred embodiment of the present invention, the composition of the present invention may be contained in an amount of 0.01 to 10% by weight, preferably 0.05 to 5% by weight, based on the total weight of the whole composition.

As used herein, the term "comprising as an active ingredient" is meant to include an amount sufficient to achieve the efficacy or activity of the above-described "

The composition of the present invention may contain, as an active ingredient, an ingredient useful for prevention or improvement of dry eye syndrome such as an antioxidant, a steroid-based or nonsteroidal anti-inflammatory drug, and the like in addition to the above-

As the antioxidant, ascorbic acid and its ester, sodium bisulfite, butylated hydroxytoluene, butylated hydroxyanisole, tocopherol, or a combination thereof may be used, but the present invention is not limited thereto.

Examples of the anti-inflammatory drug include, but are not limited to, dexamethasone, fluorometholone, prednisolone, bromfenac, diclofenac, prubiprofen, ketorolac, or a salt thereof.

As one specific use of the present invention, the composition of the present invention can be used as a pharmaceutical composition for preventing or improving dry eye syndrome.

When the composition of the present invention is used as a pharmaceutical composition, it may contain, as a useful ingredient, a buffer, a viscosity adjusting agent, a surfactant, a stabilizer, a chelating agent and a combination thereof commonly used in the preparation of a therapeutic agent for dry eye syndrome , Or a pharmaceutically acceptable carrier.

Examples of the buffer include MES (2- (N-morpholino) ethanesulfonic acid hemin sodium salt), HEPES (N- {hydroxyethyl} piperazine-N '- {2- ethanesulfonic acid} -Bis (2-hydroxyethyl) 2-aminoethanesulfonic acid), MOPS (3- {N-morpholino} propanesulfonic acid), BIS- ) Methane), citrate buffers, maleate buffers, succinate buffers, malate buffers, boric acid / sodium borate buffers, or combinations thereof may be used, but are not limited thereto.

As the viscosity adjusting agent, polyvinyl alcohol, polyvinyl pyrrolidone, methyl cellulose, hydroxypropylmethyl cellulose, hydroxyethyl cellulose, carboxymethyl cellulose, hydroxypropyl cellulose, or a combination thereof may be used, It is not.

Examples of the surfactant include polyvinylpyrrolidone, polyvinyl alcohol, polyethylene glycol, ethylene glycol, propylene glycol, polysorbate such as Tween 80, Tween 60, Tween 20, poloxamer such as Pluronic F127, Pluronic F108 ), Poloxamines (e.g., Tetronic 1508, Tetronic 908), Brij, Myrj, long chain fatty alcohols having a carbon number of 12 or more (e.g., oleyl alcohol, stearyl alcohol, myristyl alcohol and docosohexanoyl Alcohol, etc.) or a combination thereof may be used, but is not limited thereto.

The pharmaceutically acceptable carriers are those conventionally used in the art to which the present invention belongs and include lactose, dextrose, sucrose, sorbitol, mannitol, starch, acacia rubber, calcium phosphate, alginate, gelatin, calcium silicate , Microcrystalline cellulose, polyvinylpyrrolidone, cellulose, water, syrup, methylcellulose, methylhydroxybenzoate, propylhydroxybenzoate, talc, magnesium stearate and mineral oil, no. The pharmaceutical composition of the present invention may further contain a lubricant, a wetting agent, a sweetening agent, a flavoring agent, an emulsifying agent, a suspending agent, a preservative, etc., in addition to the above components. Suitable pharmaceutically acceptable carriers and formulations are described in detail in Remington ' s Pharmaceutical Sciences (19th ed., 1995).

The pharmaceutical composition of the present invention can be administered orally or parenterally, and is preferably administered by parenteral administration, more preferably intravenous infusion, subcutaneous injection, muscle injection, intraperitoneal injection, percutaneous administration, mucosal administration, Administration, and more preferably, topical administration.

A suitable dosage of the pharmaceutical composition of the present invention may vary depending on such factors as the formulation method, administration method, age, body weight, sex, pathological condition, food, administration time, route of administration, excretion rate, . The dosage of the pharmaceutical composition of the present invention is 0.01 to 80 mg / kg (body weight) on an adult basis, preferably 0.1 to 60 mg / kg (body weight). In addition, depending on the judgment of a doctor or a pharmacist, it may be administered once or several times a day at intervals of a certain time. In particular, in the case of topical administration, it is preferable that the preparation is not used once to several times per day in an amount of 0.001 to 3% (w / v, the same applies), preferably 0.01 to 1%.

The pharmaceutical composition of the present invention may be formulated into a unit dosage form by using a pharmaceutically acceptable carrier and / or excipient according to a method which can be easily carried out by those having ordinary skill in the art to which the present invention belongs. Or by intrusion into a multi-dose container.

According to a preferred embodiment of the present invention, the formulation of the pharmaceutical composition of the present invention may be formulated as a solution, suspension, syrup, emulsion, liposome, excipient, powder, granule, tablet, ointment, An eye drop, a contact lens cleaner or a contact lens lubricant, and may further comprise a dispersant or stabilizer.

As another specific application of the present invention, the composition of the present invention can be used as a quasi-drug composition for preventing or improving dry eye syndrome.

When the composition of the present invention is used as a quasi-drug composition, it may be suitably used in accordance with a conventional method such as using the above-described antler extract directly or in combination with other quasi-drugs or quasi-drugs.

The quasi-drug composition may be prepared and used in the form of a product selected from the group consisting of a sterilizing agent, a shower foam, an eye wash solution, a wet tissue, a hand wash, a humidifier cleaning agent, an ointment agent and a filter cleaning agent, .

As another specific use of the present invention, the composition of the present invention can be used as a food composition for preventing or improving dry eye syndrome.

When the composition of the present invention is used as a food composition, the above-described antler extract can be used as it is, or can be used together with other food or food ingredients. For example, it can be used with proteins, carbohydrates, fats, nutrients, seasonings and flavors. Examples of the above-mentioned carbohydrates are monosaccharides such as glucose, fructose, and the like; Daisaccharides such as maltose, sucrose, oligosaccharides and the like; And polysaccharides such as dextrin, cyclodextrin and the like, and sugar alcohols such as xylitol, sorbitol and erythritol. Natural flavors such as tau martin and stevia extract (e.g., rebaudioside A and glycyrrhizin) and synthetic flavors (saccharine, aspartame, etc.) can be used as flavorings.

There is no particular limitation on the kind of the food. Examples of the food to which the above-mentioned flat-nose extract can be added include dairy products including meat, sausage, bread, chocolate, candy, snack, confectionery, pizza, ramen, other noodles, gums, ice cream, , Alcoholic beverages and vitamin complexes, and includes all health foods in a conventional sense.

When the food composition of the present invention is prepared as a drink, citric acid, liquid fructose, sugar, glucose, acetic acid, malic acid, fruit juice and the like may be further added in addition to the white flour extract of the present invention.

In addition, the food composition may contain various nutrients, vitamins, electrolytes, flavors, colorants, pectic acid and salts thereof, alginic acid and salts thereof, organic acids, protective colloid thickening agents, pH adjusting agents, stabilizers, preservatives, glycerin , Alcohols, carbonating agents used in carbonated drinks, and the like. In addition, the food composition of the present invention may contain flesh for the production of natural fruit juices, beverages and vegetable drinks. These components may be used independently or in combination.

On the other hand, the extract of the present invention is extracted from a natural white flour, and is harmless to the human body. Since it has little toxicity and side effects, it can be safely used for a long period of use and can be safely applied to a pharmaceutical composition, quasi-drug composition or food composition Can be applied.

The present invention relates to a method for inhibiting corneal epithelial cell damage, comprising the steps of: (a) culturing an animal model of ocular dryness; (b) accelerating tear production, delaying tear film destruction time, And inhibit the infiltration of macrophages by inflammatory reactions, thereby preventing or ameliorating dry eye syndrome. In addition, the extract of the present invention has no cytotoxicity and side effects, and can be safely used in a pharmaceutical composition, a quasi-drug composition or a food composition.

FIG. 1 is a graph showing the effect of accelerated tear production on an eye-dry animal model (DED) of a cotton-on-white extract.
FIG. 2 is a graph showing the effect of inhibiting tear film destruction on the dry animal model (DED) of an opthalmic extract.
FIG. 3 is a graph showing the inhibitory effect on the corneal epithelial cell damage on the dry eye animal model (DED) of the extract of the white flour.
FIG. 4 is a graph showing the effect of inhibiting the secretion of inflammatory cytokines in an eye-dry animal model (DED) of an extract of a cotton bud.
FIG. 5 is a graph showing the effect of suppressing the macrophage infiltration on the dry animal model (DED) of the eyebrow extract.

Hereinafter, the present invention will be described in more detail with reference to Examples. It is to be understood by those skilled in the art that these embodiments are only for describing the present invention in more detail and that the scope of the present invention is not limited by these embodiments in accordance with the gist of the present invention .

Example  1: Manufacture of cottonseed extract

The stems and leaves of the perilla seeds were dried and ground to a particle size of 0.2 mm to 2 mm to prepare white flour wood powder. The extraction solvent carbon dioxide was prepared by liquefaction by injecting into a cooler at -20 ° C.

Subsequently, the white flour is firstly extracted with supercritical carbon dioxide at a temperature of 40 to 50 ° C and a pressure of 100 to 200 bar, and then the primary supercritical extract of the perilla wood is heated at a temperature of 45 to 55 ° C and a temperature of 100 to 200 bar Secondary extraction was performed with supercritical carbon dioxide under pressure to extract an oil containing a large amount of functional ingredients such as sabinene and pinene from cottonwood.

Example  2: prevention or improvement of dry eye syndrome Experiment on effects

2-1. Materials and methods

Experimental dry eye (EDE) and experimental procedure

8-week-old C57BL / 6 mice were exposed to 0.5 mg / 0.2 ml scopolamine hydrobromide (Sigma-Aldrich, St. Louis, MO) three times a day Hour, 13: 30, and 18: 00) to induce dry eye. At this time, the experimental space was maintained at a temperature of 30% humidity and a temperature of 25 ° C.

During the experiment, animal behavior, food and water intake were not restricted. Mice were distributed into the following six groups: untreated (UT); EDE control group (eye drop group); Balanced salt solution (BSS, Alcon, Forth value, TX); 0.001% treated with cottonseed extract; 0.01% cotton wool extract-treated group; 0.1% cottonseed extract treatment group. At this time, the eye drops containing the white flour extract were prepared by diluting with BSS.

Then, the mice that induced dry eye syndrome were treated with eye drops or balanced salt containing 2 μl of the perilla extract four times a day.

Analysis of tear production

(Phenol-red impregnated cotton thread, Zone-quick, Oasis, Glendora, CA) was applied to the external conjunctival sac of the mouse for 20 seconds Lt; / RTI > The length of the cotton yarn turned red by tear was then measured using a microscope (SMZ 1500; Nikon, Melville, NY) and then the length was converted to volume.

Tear film breakdown time analysis

In order to examine the tear film break-up time, which is a factor determining the stability of tear film (tear film stability), the most important clinical factor for dry eye syndrome, a conjunctival sac of mouse treated with eye drop containing curd extract, , 1 μl of 1% Fluorescein was instilled, eyes were closed about 3 times, and the eyes were opened and gently spread. Then, a slit tear film was prepared through a slit lamp microscope equipped with a Cobalt blue filter The time (in seconds) until the first defect occurred was measured.

Corneal surface damage analysis

After induction of dry eye syndrome, 1 μl of 1% fluorescein (Fluorescein) was instilled into the conjunctival sac of the mouse treated with eye drops containing the white flour extract, and the eye was washed with saline and then the rat cornea was observed with a slit- The degree of damage (degree of fluorescent staining) was scored and evaluated. For this purpose, the cornea was divided into quarters, and each quadrant was evaluated to 0-4 points as follows (total 0-16 points).

Figure 112015084400512-pat00001

Immunohistological analysis

After induction of dry eye syndrome, the eye tissues of the mice treated with the scutellum extract were fixed in 10% formalin, embedded in paraffin, and fixed on a slide glass with a thickness of 4 ㎛. The slide glass was then immersed in ethanol and blocked with BSA. The anti-CD11b antibody was then treated at room temperature for 3 hours. After washing with PBS, the FITC-conjugated anti-goto secondary antibody was treated and mounted on a mounting solution containing DAPI. The BX-40 apparatus equipped with eXcope, X3 digital camera (DIXI Optics, Korea) (Olympus, Japan).

Analysis of inflammation-mediated cytokine concentration

After the induction of dry eye syndrome, the conjunctiva of mice treated with eyebrowswax containing the extract of Fagaceae was collected through surgery, and the quantities of cytokines known to cause inflammation by Western blot analysis after protein separation were quantified.

Specifically, after inducing dry eye syndrome, conjunctival tissues of mice treated with eye drops containing the white flour extract were washed twice with PBS solution, followed by addition of lysis buffer (PRO-PREP protein extraction solution, Intron Biotechnology, Korea) Lt; 0 > C for 10 minutes. The cells were then centrifuged at 17,000 rpm, 4 ° C for 20 minutes, and the supernatant was recovered. Then 30 μg of each supernatant was mixed with SDS loading buffer (60 mM Tris, 25% glycerol, 2% SDS, 0.5% 2-mercaptoethanol, 0.1% bromophenol blue) Was loaded onto a polyacrylamide gel, electrophoresed and transferred to a nitrocellulose membrane (NCM). Then, the NCM was blocked with TBS (10 mM Tris, 100 mM NaCl, 0.1% tween 20) solution containing 5% unmodified milk powder at room temperature for 1 hour. TTBS solution for 10 minutes, followed by reaction with primary antibody (Prx2, Prx4, Prx5 diluted 1: 1000 dilution) for 2 hours, and then washed three times with TTBS solution. Then peroxidase (peroxidase) contains a secondary antibody (goat-anti mouse 1: 10,000 , goat-anti rabbit 1: 10,000) sikyeotgo reaction for 1 hour, the detection of the antibody Amersham ECL TM Western Blotting Detection Reagents ( GE Healthcare, UK) and confirmed by LAS (GE Healthcare, UK).

Statistical analysis

The results were expressed as standard error (± SEM). The statistical significance of the differences between the experimental groups was analyzed by one-way analysis of variance (ANOVA), Turkish post test, SPSS 17.0 software (SPSS Inc., Chicago, ). P values less than 0.05 were considered statistically significant.

2-2. Experiment result

Tear production and tear film breakdown analysis

After treatment of the eye drops containing the white flake extract, mice having dry eye syndrome were treated with the method described above to analyze the effects of restoring the tear secretion and blocking the tear film breakdown time. As a result, as shown in FIG. 1 and FIG. 2, the 0.1% cotton wool extract showed a decrease in the amount of tear secreted by dry eye syndrome, and inhibited the tear film destruction by dry eye syndrome.

Corneal epithelial cell damage analysis

The corneal epithelium cells were stained with fluorescein stain to measure the degree of corneal epithelial damage by the method described above after treating the eye drop containing the extract of the white flake with the mouse causing dry eye syndrome. As a result, as shown in FIG. 3, it was confirmed that the 0.1% cotton wool extract effectively inhibited corneal epithelial cell damage by dry eye syndrome.

Analysis of inflammatory mediated cytokine expression

The amount of inflammatory cytokine protein expression in the conjunctival tissues was measured in order to confirm that the conjunctival tissues could inhibit inflammatory cytokine increase after treatment with the eye drop containing the extract of Pleurotus eryngii. As a result, as shown in FIG. 4, it was confirmed that 0.001%, 0.01%, and 0.1% of the cotton wool extract effectively decreased the expression level of the inflammatory cytokine induced by dry eye syndrome.

Immunohistological analysis

After treatment of the eye drops containing the extract of the white flies, the mouse induced dry eye syndrome was examined to see if it could inhibit macrophage infiltration by inflammation in the cornea. As a result, as shown in FIG. 5, it was confirmed that the 0.1% cotton wool extract effectively inhibited macrophage infiltration induced by dry eye syndrome.

Claims (4)

A pharmaceutical composition for preventing or improving dry eye syndrome comprising Chamaecyparis obtusa extract as an active ingredient.
Cloning ( Chamaecyparis obtusa ) extract as an active ingredient for the prevention or amelioration of dry eye syndrome.
Cloning ( Chamaecyparis obtusa ) extract as an active ingredient for preventing or improving dry eye syndrome.
4. The composition according to any one of claims 1 to 3, characterized in that said flatulence extract is obtained using supercritical fluid extraction.
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KR20220046272A (en) * 2020-10-07 2022-04-14 주식회사 휴메디솔 Contact lens multifunctional solution based on biocompatible MPC polymer and its manufacturing method
WO2023101046A1 (en) * 2021-12-01 2023-06-08 주식회사 휴메디솔 Contact lens solution based on mpc and protease, and method for preparing same
WO2023101047A1 (en) * 2021-12-01 2023-06-08 주식회사 휴메디솔 Protease-based contact lens cleaning solution and method for preparing same

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KR20220046272A (en) * 2020-10-07 2022-04-14 주식회사 휴메디솔 Contact lens multifunctional solution based on biocompatible MPC polymer and its manufacturing method
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WO2023101046A1 (en) * 2021-12-01 2023-06-08 주식회사 휴메디솔 Contact lens solution based on mpc and protease, and method for preparing same
WO2023101047A1 (en) * 2021-12-01 2023-06-08 주식회사 휴메디솔 Protease-based contact lens cleaning solution and method for preparing same

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