KR20150006159A - Composition Comprising mung bean coat extracts for prevention or treatment of nonalcoholic fatty liver disease - Google Patents

Composition Comprising mung bean coat extracts for prevention or treatment of nonalcoholic fatty liver disease Download PDF

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KR20150006159A
KR20150006159A KR20130079553A KR20130079553A KR20150006159A KR 20150006159 A KR20150006159 A KR 20150006159A KR 20130079553 A KR20130079553 A KR 20130079553A KR 20130079553 A KR20130079553 A KR 20130079553A KR 20150006159 A KR20150006159 A KR 20150006159A
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mung bean
fatty liver
composition
extract
present
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김정인
이경애
최은옥
신말식
김향숙
강민정
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인제대학교 산학협력단
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    • AHUMAN NECESSITIES
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    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
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    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • 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

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Abstract

The present invention relates to a composition for preventing or treating nonalcoholic fatty liver disease comprising mung bean coat extract as an active ingredient, and to a health supplement for improving liver function. The mung bean coat extract of the present invention: reduces ALT activity in blood serum; reduces neutral fat content in liver tissue; and increases secretion of adiponectin and reduces numerical value of TNF-α, IL-6 and MCP-1, which are inflammatory cytokine, by inhibiting oxidative stress known for main mechanism of liver cell damage: therefore the composition comprising the same can be useful for preventing or treating the nonalcoholic fatty liver disease. Especially, the mung bean coat extract is applicable to an edible plant: therefore the composition comprising the same as the active ingredient can be safe for long term use. Also, the mung bean coat is waste mung bean by-product, thereby reducing costs, having economic effects, and having environment-friendly effects through recycling of waste.

Description

TECHNICAL FIELD The present invention relates to a composition for prevention or treatment of nonalcoholic fatty liver disease comprising mung bean bark extract as an active ingredient,

The present invention relates to a composition for preventing or treating non-alcoholic fatty liver disease comprising mung bean bark extract as an active ingredient, and a health supplement for improving liver function.

Fatty liver disease, also called fatty liver disease, is a disease caused by abnormal accumulation of fat (triglycerides, etc.) in hepatocytes, resulting in hepatic damage. It is known that the initial condition of fatty liver disease is a simple fatty liver that recognizes only fat deposition in hepatocytes, and then the condition progresses to fatty liver (including liver fibrosis), and also cirrhosis or hepatocellular carcinoma. In general, the causes of fatty deposits in the liver include alcohol consumption, obesity, diabetes, lipid metabolism disorders, drugs (steroids, tetracyclines, etc.), Cushing's syndrome, poisoning .

The causes of fatty liver disease are largely divided into alcohol and non-alcoholic, and liver disease caused by the former is called alcoholic fatty liver disease (also called alcoholic hepatopathy) and the latter is caused by non-alcoholic fatty liver disease nonalcoholic fatty liver disease (NAFLD).

Alcoholic fatty liver disease progresses from the initial simple fatty liver to fatty liver and cirrhosis. Non-alcoholic fatty liver disease has been thought to remain in simple fatty liver and the condition does not progress. However, recently, it has been found that non-alcoholic fatty liver disease also progresses from simple fatty liver to fatty liver or liver cirrhosis.

Non-alcoholic fatty liver disease is a disease characterized by fatty changes (steatosis) and lobular hepatitis (steatohepatitis), which are hallmarks of alcoholic hepatitis in liver biopsy despite the absence of alcohol- ) And so on. The pathologic findings of the liver are diverse spectrum from non-alcoholic fatty liver (NAFL) to non-alcoholic steatohepatitis (NASH), fibrosis associated with fatty liver, liver cirrhosis, It is used to mean all inclusive.

Most of these nonalcoholic fatty liver diseases are accompanied by insulin resistance, obesity, diabetes and hyperlipidemia. When such complications exist, it is necessary to first perform the treatment. The principle of treatment for nonalcoholic fatty liver disease is improvement of lifestyle such as meal therapy and exercise therapy, but it is a reality that it is difficult to carry out surely. In nonalcoholic steatohepatitis, a more aggressive medication is needed because it is likely to develop into cirrhosis / hepatocellular carcinoma. Although treatment aimed at improvement of oxidative stress and insulin resistance which is thought to be important in the pathogenesis and progression of nonalcoholic fatty liver disease has been attempted, there is no established scientific method.

As described above, a sufficient therapeutic method has not been established for non-alcoholic fatty liver disease, and development of a therapeutic drug having high effectiveness against non-alcoholic fatty liver disease has been desired.

Accordingly, the inventors of the present invention sought to find a natural substance having an excellent action for improving non-alcoholic fatty liver disease without adverse effects on the living body, and focused on the mung bean bark extract and its pharmacological effects were examined. As a result, the mung bean bark extract Reduce ALT activity in this serum; Lowering the triglyceride content in liver tissue; In addition to increasing adiponectin secretion, serum TNF-α, IL-6, and MCP-1 levels are reduced by inhibiting oxidative stress, a major mechanism of hepatocyte injury. Non-alcoholic fatty liver disease Can be effectively prevented or treated.

Korean Patent Publication No. 10-2011-0107287 Korean Patent Publication No. 10-2012-0097080

Accordingly, an object of the present invention is to provide a composition capable of effectively preventing or treating non-alcoholic fatty liver disease without adverse effects on the living body.

Another object of the present invention is to provide a health functional food excellent in the liver function improving effect without side effects on the living body.

In order to accomplish the above object, the present invention provides a composition for preventing or treating non-alcoholic fatty liver disease comprising mung bean bark extract as an active ingredient.

In one embodiment of the present invention, the mung bean bark extract may be a crude extract, a polar solvent-soluble extract, or a non-polar soluble extract.

In one embodiment of the present invention, the mung bean bark extract reduces ALT activity in serum; Lowering the triglyceride content in liver tissue; In addition to the increased secretion of adiponectin in the serum, the action of TNF-α, IL-6, and MCP-1, which are inflammatory cytokines, may be prevented or prevented by non-alcoholic fatty liver disease.

In one embodiment of the present invention, the mung bean bark extract may be contained in an amount of 0.1 to 90% by weight based on the total weight of the composition.

In one embodiment of the present invention, the non-alcoholic fatty liver disease can be selected from the group consisting of non-alcoholic simple fatty liver, non-alcoholic fatty liver, non-alcoholic cirrhosis and hepatocellular carcinoma.

The present invention also provides a health functional food for improving liver function comprising mung bean bark extract as an active ingredient.

In one embodiment of the present invention, the food is selected from the group consisting of beverage, meat, chocolate, foods, confectionery, pizza, ram noodles, gums, candy, ice cream, alcoholic beverages, .

The mung bean bark extract of the present invention reduces ALT activity in serum; In addition to lowering the triglyceride content in liver tissue; (IL-6) and MCP-1 (inflammatory cytokines) as well as increased secretion of adiponectin by inhibiting oxidative stress, which is known to be the main mechanism of hepatocyte injury, The composition of the present invention can be usefully used for the prevention or treatment of nonalcoholic fatty liver disease. Particularly, the mung bean bark extract is a natural substance that can be edible. Therefore, the composition of the present invention containing it as an active ingredient has safety advantages even in long-term use. In addition, the mung bean husk is a by-product of mung bean that is discarded and can be economically effective not only to reduce costs, but also to be eco-friendly by recycling the waste.

FIG. 1 is a graph showing the content of alanine aminotransferase (ALT) in the serum according to the feeding of the mung bean bark extract of the present invention to the type 2 diabetic mouse.
FIG. 2 is a graph showing the measurement of the triglyceride content in liver tissues according to the feeding of the mung bean bark extract of the present invention to a mouse of type 2 diabetes mellitus.
FIG. 3A is a graph showing the concentration of adiponectin in the serum according to the feeding of the mung bean bark extract of the present invention to the type 2 diabetes model mouse.
FIG. 3B is a graph showing the concentration of TNF-.alpha. In serum according to the feeding of the mung bean bark extract of the present invention to a mouse of type 2 diabetes mellitus.
FIG. 3c is a graph showing the concentration of IL-6 in serum according to the feeding of the mung bean bark extract of the present invention to a mouse of type 2 diabetes mellitus.
FIG. 3D is a graph showing the concentration of MCP-1 in serum according to the feeding of the mung bean bark extract of the present invention to a mouse of type 2 diabetes mellitus.

The present invention relates to a novel use of mung bean bark extract, and is characterized by providing a composition for preventing or treating non-alcoholic fatty liver disease comprising mung bean bark extract as an active ingredient.

The 'Vigna radiata L.' of the present invention is an annual herbaceous plant belonging to the soybean family, and corresponds to crops widely grown in Asia, including China, including mung bean, It is also called Gidou (吉 豆). Except for mung bean husk, mung bean noodle is widely used as noodles, porridge, and stubble. The effect of mung bean is fever, and it is known to be effective in edema, diuretic, different skin diseases, acne, boils, erysipelas, prostatitis, drug poisoning, bad breath, vomiting and mumps.

However, the efficacy of mung bean coat (MBC) has not been well known. In particular, there is no study of the effect of mung bean skin on the improvement of non-alcoholic fatty liver disease.

We have found that mung bean bark extract reduces ALT activity in serum; In addition to lowering the triglyceride content in liver tissue; The inhibition of oxidative stress, which is known to be the main mechanism of hepatocyte injury, has the effect of decreasing the level of inflammatory cytokines TNF-α, IL-6 and MCP-1 as well as the increase of adiponectin secretion By identifying, it was the first time that we could effectively prevent or treat non-alcoholic fatty liver disease through these mechanisms.

In the following Example <3-1> of the present invention, the effect of the mung bean bark extract on the serum ALT activity was examined. As a result, the serum ALT activity in the experimental group (mung bean shell group) And it was deduced that the mung bean bark extract of the present invention has an activity of inhibiting liver damage (see FIG. 1).

In the following Example < 3-2 > of the present invention, the effect of the mung bean bark extract on the triglyceride content in the liver tissue was examined. As a result, in the liver tissue of the mung bean bark group Of liver oil was 165.6 ± 36.4 mg / g liver compared with that of control (218.3 ± 31.6 mg / g liver). As a result, the mung bean bark extract of the present invention showed the neutral fat content It can be effectively lowered (see Fig. 2).

In the following Example <3-3> of the present invention, the effect of mung bean bark extract on the production of serum adiponectin and inflammatory cytokine was examined. As a result, the test group (mung bean husk group) (10.6 ± 1.4 pg / mL) as compared with the control group (13.3 ± 1.9 pg / mL). Also, in the experimental group (mung bean shell group ) Were measured as 12.5 ± 1.5 (TNF-α), 22.0 ± 3.4 (IL-6) and 110.6 ± 17.7 (MCP-1) pg / mL in serum, respectively , Indicating that inflammatory cytokine levels were significantly reduced compared to the control (15.4 ± 2.0, 31.9 ± 5.3, 144.9 ± 23.9 pg / mL) (see FIG. 3).

For reference, oxidative stress is well known as a major mechanism of hepatocyte damage in hepatitis. In particular, visceral adipose tissue plays an important role in accumulating fat in hepatocytes. When fat accumulates in the body, NADPH (nicotinamide adenine di-nucleotide phosphate) oxidase is activated and systemic oxidative stress is increased. Increased oxidative stress has been shown to increase inflammatory cytokines such as tumor necrosis factor-alpha (TNF-alpha), monocyte chemotactic protein-1 (MCP-1), interleukin-6 (IL-6), and adiponectin adiponectin) secretion. Adiponectin is an anti-inflammatory cytokine secreted mainly from adipocytes and is structurally very similar to TNF-α, but its action reversely increases insulin sensitivity, decreases glucose production in the liver, and improves hyperlipidemia It is known.

Thus, in Example <3-3> of the present invention, whether or not the mung bean husk extract can reduce the oxidative stress was verified by measurement of inflammatory cytokines and adiponectin produced (secreted) by oxidative stress, In addition, it was found that the extract supplementation can decrease TNF-α, IL-6 and MCP-1 levels, which are inflammatory cytokines, as well as increased secretion of adiponectin. .

As a result of the above-mentioned Example 3, the present inventors have found that when mung bean husk extract is fed to a mouse of type 2 diabetic model, it decreases ALT activity in serum, lowers the triglyceride content in liver tissue, (TNF-α, IL-6, and MCP-1), as well as increased secretion of adiponectin in serum.

Therefore, the composition of the present invention comprising mung bean bark extract as an active ingredient can effectively prevent or treat non-alcoholic fatty liver disease.

The mung bean bark extract according to the present invention can be obtained by extracting and separating from nature using an extraction and separation method known in the art. The 'extract' defined in the present invention can be obtained by extracting mung bean bark For example, a crude extract of mung bean husk, a polar solvent-soluble extract of mung bean husk, or a non-polar solvent-soluble extract of mung bean husk.

As an appropriate solvent for extracting the extract from the mung bean shell, water or a pharmaceutically acceptable organic solvent may be used. For example, it may be purified water, methanol, ethanol Alcohol having 1 to 4 carbon atoms, acetone, ether, benzene, chloroform, ethyl acetate (including butanol), propanol, isopropanol, ethyl acetate, methylene chloride, hexane, and cyclohexane may be used alone or in combination.

As the extraction method, any one of the methods such as hot water extraction method, cold extraction method, reflux cooling extraction method, solvent extraction method, steam distillation method, ultrasonic extraction method, elution method and compression method can be selected and used. In addition, the desired extract may be further subjected to a conventional fractionation process or may be purified using a conventional purification method. The method for producing the mung bean bark extract of the present invention is not limited and any known method can be used.

For example, the mung bean bark extract contained in the composition of the present invention can be prepared into a powdery state by an additional process such as vacuum distillation, freeze drying, or spray drying, have. Further, the primary extract can be further purified by using various chromatographies such as silica gel column chromatography, thin layer chromatography, high performance liquid chromatography and the like, You can get it.

Therefore, in the present invention, the mung bean husk extract is a concept including all the extracts, fractions and tablets obtained in each step of extraction, fractionation or purification, their diluted solutions, concentrates or dried products.

The composition of the present invention containing the mung bean bark extract as an active ingredient may be a pharmaceutical composition or a food composition.

The pharmaceutical composition of the present invention can be prepared by using pharmaceutically acceptable and physiologically acceptable adjuvants in addition to the above-mentioned active ingredients. Examples of the adjuvants include excipients, disintegrants, sweeteners, binders, coating agents, swelling agents, lubricants, A lubricant or a flavoring agent can be used.

The pharmaceutical composition may be formulated into a pharmaceutical composition containing at least one pharmaceutically acceptable carrier in addition to the above-described active ingredients for administration.

The pharmaceutical composition may be in the form of granules, powders, tablets, coated tablets, capsules, suppositories, liquids, syrups, juices, suspensions, emulsions, drops or injectable solutions. For example, for formulation into tablets or capsules, the active ingredient may be combined with an oral, non-toxic pharmaceutically acceptable inert carrier such as ethanol, glycerol, water, and the like. Also, if desired or necessary, suitable binders, lubricants, disintegrants and coloring agents may also be included as a mixture. Suitable binders include, but are not limited to, natural sugars such as starch, gelatin, glucose or beta-lactose, natural and synthetic gums such as corn sweeteners, acacia, tracker candles or sodium oleate, sodium stearate, magnesium stearate, sodium Benzoate, sodium acetate, sodium chloride, and the like. Disintegrants include, but are not limited to, starch, methyl cellulose, agar, bentonite, xanthan gum and the like. Acceptable pharmaceutical carriers for compositions that are formulated into a liquid solution include sterile solutions suitable for the living body such as saline, sterile water, Ringer's solution, buffered saline, albumin injection solution, dextrose solution, maltodextrin solution, glycerol, One or more of these components may be mixed and used. If necessary, other conventional additives such as an antioxidant, a buffer, and a bacteriostatic agent may be added. In addition, diluents, dispersants, surfactants, binders, and lubricants may be additionally added to formulate into injectable solutions, pills, capsules, granules or tablets such as aqueous solutions, suspensions, emulsions and the like. Further, it can be suitably formulated according to each disease or ingredient, using the method disclosed in Remington's Pharmaceutical Science, Mack Publishing Company, Easton PA as an appropriate method in the field.

In one embodiment of the present invention, the mung bean bark extract of the present invention may be contained in an amount of 0.1 to 90% by weight based on the total weight of the composition.

The non-alcoholic fatty liver which can be prevented or treated with the pharmaceutical composition of the present invention includes, but is not limited to, non-alcoholic simple fatty liver, non-alcoholic fatty liver hepatitis, nonalcoholic liver cirrhosis and hepatocellular carcinoma.

The composition of the present invention may also be a food composition. In addition to containing the active ingredient mung bean bark extract, such a food composition may contain various flavors or natural carbohydrates as an additional ingredient such as a conventional food composition.

Examples of the above-mentioned natural carbohydrates include monosaccharides such as glucose, fructose and the like; Disaccharides such as maltose, sucrose and the like; And polysaccharides, for example, conventional sugars such as dextrin, cyclodextrin and the like, and sugar alcohols such as xylitol, sorbitol and erythritol. The above-described flavors can be advantageously used as natural flavorings (tau martin), stevia extracts (e.g., rebaudioside A, glycyrrhizin, etc.) and synthetic flavors (saccharin, aspartame, etc.).

The food composition of the present invention can be formulated in the same manner as the above pharmaceutical composition and used as a functional food or added to various foods. Foods to which the composition of the present invention can be added include, for example, beverages, meat, chocolates, foods, confectionery, pizza, ram noodles, other noodles, gums, candy, ice cream, alcoholic beverages, vitamin complexes, .

In addition to the mung bean bark extract, which is an effective ingredient, the food composition may also contain various nutrients, vitamins, minerals (electrolytes), flavors such as synthetic flavors and natural flavors, colorants and intermediates such as cheese and chocolate, Salts of alginic acid and its salts, organic acids, protective colloid thickening agents, pH adjusting agents, stabilizers, preservatives, glycerin, alcohols, carbonating agents used in carbonated beverages and the like. In addition, the food composition of the present invention may contain natural fruit juice and pulp for the production of fruit juice drinks and vegetable drinks.

The extract of mung bean bark, which is an effective ingredient of the present invention, is a natural substance and has little toxicity and side effects. Therefore, it can be safely used for long-term administration for the purpose of improving liver function.

The present invention also provides a health functional food for improving liver function comprising mung bean bark extract as an active ingredient.

The health functional food of the present invention can be manufactured and processed in the form of tablets, capsules, powders, granules, liquids, and rings for the purpose of improving liver function.

In the present invention, the term &quot; health functional food &quot; refers to foods manufactured and processed using raw materials or ingredients having useful functions in accordance with Law No. 6727 on Health Functional Foods. Or to obtain a beneficial effect in health use such as physiological action.

The health functional foods of the present invention may contain conventional food additives and, unless otherwise specified, whether or not they are suitable as food additives are classified according to the General Rules for Food Additives approved by the Food and Drug Administration, Standards and standards.

Examples of the items listed in the above-mentioned "food additives" include chemical compounds such as ketones, glycine, calcium citrate, nicotinic acid, and cinnamic acid; Natural additives such as persimmon extract, licorice extract, crystalline cellulose, high color pigment and guar gum; L-glutamic acid sodium preparations, noodle-added alkalis, preservative preparations, tar coloring preparations and the like.

For example, the health functional food in tablets may be prepared by granulating a mixture of mung bean bark extract, an active ingredient of the present invention, with an excipient, a binder, a disintegrant and other additives in a usual manner, Or the mixture can be directly compression molded. In addition, the health functional food of the tablet form may contain a mating agent or the like if necessary.

The hard capsule of the capsule-type health functional food can be prepared by filling a normal hard capsule with a mixture of the mung bean husk extract, which is an effective ingredient of the present invention, with an additive such as an excipient, and the soft capsule is prepared by dissolving the mung bean bark extract, And filling the mixture with a capsule base such as gelatin. The soft capsule may contain a plasticizer such as glycerin or sorbitol, a coloring agent, a preservative and the like, if necessary.

The ring-shaped health functional food can be prepared by molding a mixture of mung bean bark extract, excipient, binder, disintegrant, and the like, which is an effective ingredient of the present invention, by a conventionally known method and, if necessary, Or it may be coated with a material such as starch, talc.

The granular health functional food may be prepared by granulating a mixture of mung bean bark extract, excipient, binder, disintegrant and the like, which is an effective ingredient of the present invention, into granules by a known method, and if necessary, And the like.

The health functional food comprising the mung bean bark extract of the present invention as an active ingredient decreases ALT activity in serum as confirmed in the following examples; In addition to lowering the triglyceride content in liver tissue; In addition to the increased secretion of adiponectin in the serum, the TNF-α, IL-6, and MCP-1 levels, which are inflammatory cytokines, can be significantly reduced.

The health functional food may be a beverage, a meat, a chocolate, a food, a confectionery, a pizza, a ramen, a noodle, a gum, a candy, an ice cream, an alcoholic beverage, a vitamin complex and a health supplement food.

The present invention also provides the use of a composition comprising, as an active ingredient, a mung bean bark extract for the production of a medicament or food for the prevention or treatment of nonalcoholic fatty liver disease. The composition of the present invention comprising the mung bean bark extract as an active ingredient can be used for the manufacture of medicines or foods for the prevention or treatment of nonalcoholic fatty liver disease.

The present invention also provides a method of preventing or treating nonalcoholic fatty liver disease comprising administering to a mammal an extract of mung bean bark.

The term "mammal " as used herein refers to a mammal that is the subject of treatment, observation or experimentation, preferably a human.

The term "therapeutically effective amount " as used herein refers to the amount of active ingredient or pharmaceutical composition that induces a biological or medical response in a tissue system, animal or human, as contemplated by a researcher, veterinarian, physician or other clinician, The amount that induces the relief of the symptoms of the disease or disorder being treated. It will be apparent to those skilled in the art that the therapeutically effective dose and the number of administrations of the active ingredient of the present invention will vary depending on the desired effect. The optimal dosage to be administered can therefore be readily determined by those skilled in the art and will depend upon the nature of the disease, the severity of the disease, the amount of active and other ingredients contained in the composition, the type of formulation, and the age, , Sex and diet, time of administration, route of administration and rate of administration of the composition, duration of treatment, concurrent administration of the drug, and the like. In the treatment method of the present invention, in the case of an adult, it is preferable to administer the mung bean bark extract of the present invention at a dose of 1 mg / kg to 250 mg / kg once to several times a day.

The composition comprising the mung bean husk extract of the present invention as an active ingredient in the treatment method of the present invention can be administered orally or rectally via intravenous, intraarterial, intraperitoneal, intramuscular, intrasternal, percutaneous, topical, And can be administered in a conventional manner.

Hereinafter, the present invention will be described in more detail with reference to Examples. These examples are for further illustrating the present invention, and the scope of the present invention is not limited to these examples.

< Example  1>

Manufacture of mung bean bark extract

The mung bean bark used in the present invention was obtained by purchasing mung bean in the market of Banyeo Dong Agricultural Products in Busan, and then separating the mung bean husk and mung bean. The freeze-dried mung bean bark was ground and 1.0 kg of ground mung bean husk powder was extracted three times at room temperature (12 h, 6 h, 3 h) with 75% ethanol corresponding to 10 times (W / V) The extract was separated by filtration. The filtrate was extracted with a rotary evaporator (EYELA FDU-1100, Japan) at 40 ° C, and 25.0 g of an extract was obtained as an extracted residue. At this time, the yield of the mung bean husk extract was 2.5%.

< Example  2>

When the mung bean bark extract of the present invention shows weight and On the dietary intake  Measure impact

A 4-week-old male C57BL / Ks-db / db mouse was purchased and after an adaptation period of one week, the animals were divided into two groups according to the nude method. MUN bean coat (MBC) group was fed with 1% of the diet of mung bean bark extract for 7 weeks as ad libitum in the control group and AIN-93G group in the control group as shown in Table 1 below. Body weight and dietary intake were measured twice a week to observe changes in body weight with consumption of mung bean bark extract. The results are shown in Table 2 below.

AIN-93G basic diet Furtherance Diet (%) Corn starch 1 ) 39.7 Casein 2 ) 20.0 Luxurious starch 13.2 Sucrose 3 ) 10.0 a-cellulose 4 ) 5.0 Mineral mixture 5 ) 3.5 Vitamin mixture 5 ) 1.0 L-cystine 5 ) 0.3 Choline by tartrate 3 ) 0.25 4-butylhydroquinone 0.0014 Soybean oil 6 ) 7.0 1) Target company, Korea
2) Hair gongburn (Murry goulburn Co., Australia)
3) Samyangsa, Korea
4) Sigma Company, USA
5) ICN Biochemical, USA
6) CheilJedang, Korea

Weight change in mice Weight (g) Dietary intake (g) Control group 43.5 ± 3.5 4.3 ± 0.3 Mung bean shell 41.9 ± 3.0 4.6 ± 0.4

As a result, as shown in Table 2, the body weights of the control group and the mung bean skin group were 43.5 ± 3.5 and 41.9 ± 3.0 g, respectively, and there was no significant difference between the two groups, and the dietary intake was also significantly different between the two groups I could confirm that there was no.

< Example  3>

Effect of the present invention on the improvement of fatty liver of mung bean bark extract

To investigate the effect of the mung bean bark extract of the present invention prepared in Example 1 on the prevention of fatty liver and the improvement of fatty liver, it was investigated whether serum ALT, neutral lipid content of liver tissue and oxidative stress The concentrations of inflammatory cytokines were measured.

For this purpose, the experimental animals used in Example 2 were fasted for 12 hours after 10 weeks of dietary intake, blood was collected from the heart with a syringe containing 10 mg of EDTA (ehylene diamine tetra acetic acid) and sucking it with carbon dioxide gas. Liver tissues were rinsed with 0.9% physiological saline and drained and stored at -70 ° C until analysis. Blood was centrifuged at 3,000 × g for 15 minutes and serum was collected and stored at -70 ° C.

<3-1> Serum ALT  Active measurement

When the structure and function of cell membranes are destroyed, ALT (alanine aminotransferase), an enzyme widely present in the liver cytoplasm, is released into the blood, so that ALT levels in the blood are frequently used as an index of liver damage.

In this experiment, serum ALT levels were measured to examine the effect of the mung bean bark extract of the present invention on prevention of fatty liver and improvement of fatty liver.

ALT activity was measured by quantitative kit reagent (Yeongdong Pharmaceutical, Korea). 1.0 mL of the ALT substrate solution was heated in a 37 ° C water bath for 2 minutes, then 0.2 mL of plasma was added and reacted in a 37 ° C water bath for 30 minutes. After 30 minutes, 1.0 mL of the color development reagent was added, and the mixture was allowed to stand at room temperature for 20 minutes. Then, 10.0 mL of 0.4 N NaOH was added and absorbance was measured at 505 nm. The activity of the sample was calculated by extrapolating the absorbance of the ALT standard solution (2 mM pyruvate) in the same manner as above and absorbance to the standard curve.

As a result, the serum ALT activities of the control group and the mung bean shell group were 129.3 ± 20.5 and 98.9 ± 17.8 U / L, respectively, and the serum ALT activity of the mung bean shell group was significantly decreased compared with the control group (p &Lt; 0.05). The results are shown in FIG. 1, and it can be inferred that the mung bean bark extract of the present invention has an activity of inhibiting liver damage.

<3-2> Liver tissue  Measurement of triglyceride content

In this experiment, the content of triglyceride in liver tissues was also measured in order to examine the effect of the mung bean bark extract of the present invention on prevention of fatty liver and improvement of fatty liver.

The triglyceride content of the liver tissues was measured by the crude fat analysis (Folch method) and by enzyme method. Take 0.1 mL of the extract from the jellyfish extract and volatilize the solvent in a heating block (Daeil tech, Korea) and dissolve in 0.2 mL of ethanol. To prevent turbidity with the reaction solution, add 3 mL of the reaction reagent dissolved in the buffer solution containing 0.5 mL of triton X-100, react at 37 ° C for 10 minutes, and measure the absorbance at 550 nm.

As a result, it was confirmed that the content of triglyceride was 165.6 ± 36.4 mg / g liver in the liver tissue of the experimental group (mung bean skin group) fed with mung bean skin, and that it was significantly decreased compared to the control group (218.3 ± 31.6 mg / g liver) (P < 0.001). The results are shown in FIG. 2, which shows that the mung bean bark extract of the present invention has an activity of lowering the triglyceride content in the liver tissue.

<3-3> Serum Adiponectin  And inflammatory cytokine levels

In order to examine whether the mung bean bark extract prepared in Example 1 can reduce oxidative stress, it was verified by measurement of adiponectin and inflammatory cytokines (TNF-a, IL-6 and MCP-1).

Oxidative stress is well known as the main mechanism of hepatocyte injury in fatty liver. In particular, visceral adipose tissue plays an important role in accumulating fat in hepatocytes. When fat accumulates in the body, NADPH (nicotinamide adenine di-nucleotide phosphate) oxidase is activated and systemic oxidative stress is increased. Increased oxidative stress has been shown to increase inflammatory cytokines such as tumor necrosis factor-alpha (TNF-alpha), monocyte chemotactic protein-1 (MCP-1), interleukin-6 (IL-6), and adiponectin adiponectin) secretion. In addition, the exact mechanism of nonalcoholic fatty liver disease has not been elucidated, but fatty liver has been described as progressing to fatty liver and liver fibrosis due to the action including inflammatory cytokine response (Day CP, James OF. Steatohepatitis: a tale of two "hits"? Gastroenterology, 114: 842-5, 1998., Day CP, From fat to inflammation, Gastroenterology.

Therefore, in order to investigate whether the mung bean bark extract can reduce oxidative stress, which is the main mechanism of hepatocyte injury, in the experiment group (mung bean shell group) ingested with the mung bean bark extract of the present invention, adiponectin and inflammatory cytokine TNF-α, IL-6, MCP-1) were measured.

Serum adiponectin (Biovender, USA), TNF- alpha (eBiosience, USA), IL-6 (eBiosience, USA) and MCP-1 (Biosource, USA) were measured using an ELISA cytokine kit according to the manufacturer's instructions .

As a result, as shown in FIG. 3A, serum adiponectin concentration in the experimental group (mung bean skin group) ingested with the mung bean bark extract of the present invention was 13.3 ± 1.9 pg / mL, which was significantly higher than that of the control group (10.6 ± 1.4 pg / mL) (P <0.05). As shown in FIGS. 3b to 3d, the concentration of TNF-α, IL-6 and MCP-1 in the serum of the experimental group (mungbean shell group) consumed with the mung bean bark extract was (15.4 ± 2.0, 31.9 ± 5.3, and 144.9 ± 23.9 pg / mL), respectively, in the control group (n = 12.5 ± 1.5 (TNF-α), 22.0 ± 3.4 (P < 0.05).

In conclusion, when the mung bean bark extract of the present invention is administered to a mouse of type 2 diabetes mellitus, the ALT activity is reduced in the serum without affecting the body weight, and the triglyceride content (TNF-α, IL-6, and MCP-1) as well as increased secretion of adiponectin in the serum according to the suppression of oxidative stress.

The present invention has been described with reference to the preferred embodiments. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the disclosed embodiments should be considered in an illustrative rather than a restrictive sense. The scope of the present invention is defined by the appended claims rather than by the foregoing description, and all differences within the scope of equivalents thereof should be construed as being included in the present invention.

Claims (7)

A composition for preventing or treating a non-alcoholic fatty liver disease comprising an extract of mung bean bark as an active ingredient. The method according to claim 1,
Wherein the mung bean bark extract is a crude extract, a polar solvent-soluble extract, or a non-polar soluble extract.
The method according to claim 1,
The mung bean bark extract reduces ALT activity in serum; Lowering the triglyceride content in liver tissue; The present invention provides a composition for preventing or treating non-alcoholic fatty liver disease, which has an effect of increasing the secretion of adiponectin in serum and reducing TNF-α, IL-6 and MCP-1 levels which are inflammatory cytokines.
The method according to claim 1,
The composition for prevention or treatment of nonalcoholic fatty liver disease according to claim 1, wherein the mung bean bark extract is contained in an amount of 0.1 to 90% by weight based on the total weight of the composition.
5. The method according to any one of claims 1 to 4,
Wherein the non-alcoholic fatty liver disease is selected from the group consisting of non-alcoholic simple fatty liver, non-alcoholic fatty liver hepatitis, non-alcoholic cirrhosis, and hepatocellular carcinoma.
A health functional food for improving liver function containing mung bean bark extract as an active ingredient. The method according to claim 6,
Wherein said food is selected from the group consisting of beverage, meat, chocolates, foods, confectionery, pizza, ramen, other noodles, gums, candy, ice cream, alcoholic beverages, vitamin complexes and health supplement foods.
KR20130079553A 2013-07-08 2013-07-08 Composition Comprising mung bean coat extracts for prevention or treatment of nonalcoholic fatty liver disease KR20150006159A (en)

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