WO2023171969A1 - 팥꽃나무 꽃봉오리 추출물을 유효성분으로 함유하는 신경 염증의 예방 또는 치료용 조성물 - Google Patents
팥꽃나무 꽃봉오리 추출물을 유효성분으로 함유하는 신경 염증의 예방 또는 치료용 조성물 Download PDFInfo
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
- A61P25/28—Drugs for disorders of the nervous system for treating neurodegenerative disorders of the central nervous system, e.g. nootropic agents, cognition enhancers, drugs for treating Alzheimer's disease or other forms of dementia
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES, NOT OTHERWISE PROVIDED FOR; PREPARATION OR TREATMENT THEREOF
- A23L33/00—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
- A23L33/10—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof using additives
- A23L33/105—Plant extracts, their artificial duplicates or their derivatives
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- 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)
- A61K36/83—Thymelaeaceae (Mezereum family), e.g. leatherwood or false ohelo
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2200/00—Function of food ingredients
- A23V2200/30—Foods, ingredients or supplements having a functional effect on health
- A23V2200/322—Foods, ingredients or supplements having a functional effect on health having an effect on the health of the nervous system or on mental function
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2236/00—Isolation 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
- A61K2236/30—Extraction of the material
- A61K2236/33—Extraction of the material involving extraction with hydrophilic solvents, e.g. lower alcohols, esters or ketones
Definitions
- the present invention relates to a composition for preventing or treating neuroinflammation containing an extract of red bean flower buds as an active ingredient.
- Degenerative neurological disease is a disease in which mental function deteriorates due to gradual structural and functional loss of neurons.
- Degenerative neurological disease is the progression of nerve cell degeneration in specific parts of the nervous system and is accompanied by symptoms such as dementia, extrapyramidal abnormalities, cerebellar abnormalities, sensory disorders, and motor disorders. Symptoms may also appear complex as abnormalities occur in multiple areas at the same time. In this regard, the disease is diagnosed according to the clinical manifestations shown by the patient, but the symptoms are diverse and different diseases often show common clinical symptoms, making diagnosis difficult.
- These neurodegenerative diseases show signs of the disease gradually and often develop with aging. Once the disease develops, the disease continues to progress for years or even decades until death, and fundamental treatment is difficult, resulting in a significant social burden.
- degenerative neurological diseases can broadly include progressive dementia (Alzheimer's disease, etc.), neurological abnormalities (Pick's disease, etc.), posture and movement abnormalities (Parkinson's disease, etc.), progressive ataxia, muscle atrophy and weakness, sensory and motor disorders, etc.
- progressive dementia Alzheimer's disease, etc.
- neurological abnormalities Pick's disease, etc.
- posture and movement abnormalities Parkinson's disease, etc.
- progressive ataxia muscle atrophy and weakness
- sensory and motor disorders etc.
- Alzheimer's dementia a degenerative neurological disease with the highest prevalence at 6.54% in people over 65 years of age, accounts for 71.3% of all dementia, and its direct causes are beta-amyloid plaques, neuroinflammation, and neuropathy. Cytotoxicity caused by neurofibrillary tangles is attracting attention.
- Microglia are cells that perform the primary immune function in the Central Nervous System (CNS). They maintain the shape of long, thin branches and a thin cell body, and are resistant to toxins introduced from outside or generated internally. Once present, it changes into an activated shape with thick and short branches and a round cell body to protect nerve cells from these toxins. Unlike normal microglia, activated microglia actively engage in phagocytosis, proliferate, and produce cytokines such as TNF- ⁇ , IL-1 ⁇ , and IL-6, chemokines, and iNOS (inducible nitric oxide synthase). ) and COX-2 (cyclooxygenase-2) are expressed to produce inflammatory mediators.
- CNS Central Nervous System
- microglial cells removes damaged cells and protects nerve cells from invading bacteria or viruses.
- nitric oxide produced by excessively expressed iNOS and prostaglandins produced by COX-2 Because TNF- ⁇ is also toxic to nerve cells, the activation of microglial cells ultimately worsens damage to nerve cells.
- substances released by dying nerve cells trigger the activity of microglial cells again, neurodegeneration falls into a continuous vicious cycle.
- the activity of microglial cells is related to various neurodegenerative diseases such as Alzheimer's disease, Parkinson's disease, Huntington's disease, Lou Gehrig's disease, Creutzfelt-Jakob Disease (CJD), and multiple sclerosis.
- Activating substances for microglia include lipopolysaccharide (LPS), a bacterial endotoxin, interferon- ⁇ , beta-amyloid, and ganglioside.
- LPS lipopolysaccharide
- MAPK The signal transduction system involved in the activation of microglial cells is MAPK. These include PKC, ROS, and NF-kB.
- the mitogen-activated protein (MAP) kinase family is a key protein as an intracellular signal transduction mediator and is activated in response to various extracellular signals such as inflammatory response, death, cell differentiation, and growth in the human body, and acts as a transcription factor. Activates and regulates the transcription of necessary genes.
- the promoters of the iNOS, TNF- ⁇ , and COX-2 genes expressed in activated microglial cells have a common region where NF-kB binds, and the expression of these genes is regulated by activation of NF-kB. It is known that beta-amyloid and LPS activate NF-kB in microglial cells, and ganglioside and thrombin also activate NF-kB in microglial cells. Activation of NF-kB by these activators occurs within 15 minutes and promotes the production of inflammatory cytokines. Although the relationship between microglial activation and neurodegenerative diseases has not yet been fully elucidated, it is generally accepted that microglial activity is involved in the onset and progression of neurodegenerative diseases. Therefore, inhibiting the activation of microglial cells will be an effective treatment that can alleviate the progression of neurodegenerative diseases.
- the present inventors completed the invention by confirming through experiments a method of suppressing brain nerve inflammation using natural extracts, because excessive activation of microglia and astrocytes, which cause nerve inflammation, causes nerve damage and memory degeneration. .
- An object of the present invention is to provide a pharmaceutical composition for preventing or treating neuroinflammatory diseases.
- an object of the present invention is to provide a pharmaceutical composition for preventing or treating neurodegenerative diseases.
- an object of the present invention is to provide a pharmaceutical composition for reducing the activity of microglial cells in neurodegenerative diseases.
- an object of the present invention is to provide a food composition for improving or preventing neuroinflammatory diseases.
- the object of the present invention is to prevent or treat neuroinflammatory diseases, which includes administering to an individual a pharmaceutical composition for the prevention or treatment of neuroinflammatory diseases containing a pharmaceutically effective amount of Red Bean flower bud extract as an active ingredient. It provides a treatment method.
- the present invention provides a pharmaceutical composition for preventing or treating neuroinflammatory diseases containing an extract of Red bean flower buds as an active ingredient.
- the present invention provides a pharmaceutical composition for preventing or treating neurodegenerative diseases containing an extract of Red bean flower buds as an active ingredient.
- the present invention provides a pharmaceutical composition for reducing the activity of microglial cells in neurodegenerative diseases, containing an extract of Red bean flower buds as an active ingredient.
- the present invention provides a food composition for improving or preventing neuroinflammatory diseases containing an extract of Red bean flower buds as an active ingredient.
- the present invention provides a method for preventing or treating neuroinflammatory diseases, comprising administering to a subject a pharmaceutical composition for preventing or treating neuroinflammatory diseases containing a pharmaceutically effective amount of extract of red bean flower buds as an active ingredient. provides.
- the red bean flower bud extract of the present invention has anti-inflammatory activity in nerve cells, has the effect of suppressing nerve inflammation, inhibits (hyper)activation of microglial cells, prevents nerve loss, and has the effect of suppressing nerve inflammation. Since it protects nerves by promoting proliferation, it can be used for neuroinflammatory diseases, neurodegenerative diseases, or to reduce microglial activation.
- Figure 1 is a diagram confirming the anti-inflammatory effect of Adzuki bean flower bud extract (GFE) on microglial cells:
- A NO production and IC 50 of HAPI cells treated with LPS and/or GFE;
- F Cell survival rate of MGCs 48 hours after stimulation with LPS and/or GFE.
- Figure 2 is a diagram confirming the pro-inflammatory inhibitory effect by GFE in MGCs:
- A mRNA expression levels of TNF- ⁇ and iNOS after treatment with LPS (1 ug/ml) and/or GFE (10 ⁇ g/mL) for 48 hours;
- Figure 3 is a diagram confirming the effect of GFE on suppressing microglial hyperactivation in the mouse brain:
- D Area of Iba-1 + cells in the brains of mice in the control group, LPS (4 mg/kg) administered group, and LPS (4 mg/kg)+GFE (200 mg/kg) administered group.
- E Number of Iba-1 + cells in the brains of mice in the control group, LPS (4 mg/kg) administered group, and LPS (4 mg/kg)+GFE (200 mg/kg) administered group;
- F mRNA levels of IL-1b in the brains of mice in the control group, LPS (4 mg/kg) administration group, GFE (200 ⁇ g/ml) administration group, and LPS (4 mg/kg)+GFE (50, 100, and 200 ⁇ g/ml) administration group. Quantitative graph for .
- Figure 4 is a diagram confirming the neuroprotective effect of GFE in mouse brain tissue and primary cortical neurons.
- A Immunostaining for NeuN in thalamic sections of the brain cortex of mice administered vehicle (control), LPS (4 mg/kg), and LPS (4 mg/kg)+GFE (200mg/kg);
- C Proliferation of primary cortical neurons based on CCK8 analysis of mouse fetal cortical neurons treated with conditioned medium derived from HAPI cells treated with LPS (100 ng/ml) and/or GFE (10 ⁇ g/ml) for 48 h. Quantitative graph for.
- Figure 5 is a diagram confirming the effect of GFE in promoting neuroprotective microglial function:
- A mRNA levels of Arg1 in MGCs treated or not with GFE (10 ⁇ g/ml) for 48 h;
- Figure 6 is a diagram confirming the signaling pathway related to the anti-neuroinflammatory effect of GFE.
- FIG. 7 is a diagram summarizing the effect of the GFE of the present invention.
- the present invention relates to a pharmaceutical composition for preventing or treating neuroinflammation diseases, containing Daphne genkwa flower bud extract as an active ingredient.
- the extract may be extracted with one or more solvents selected from the group consisting of water, organic solvents, subcritical fluids, and supercritical fluids, and the organic solvent is a lower alcohol having 1 to 4 carbon atoms, hexane (n-hexane) ), ether, glycerol, propylene glycol, butylene glycol, ethyl acetate, methyl acetate, dichloromethane, chloroform, ethyl acetate, acetone, methylene chloride, cyclohexane, petroleum ether, benzene and mixed solvents thereof. It may be any one selected from the group, and methanol is most preferred.
- the nerve inflammation may be cranial nerve inflammation.
- the neuroinflammatory disease may be a neuroinflammatory disease in which the activity of microglia or astrocytes is increased.
- the Red Bean flower bud extract can inhibit neuroinflammation of the brain cortex induced by the activity of microglia or astroglial cells.
- extract used in the present invention refers to an active ingredient isolated from a natural product, that is, a substance showing the desired activity.
- the extract can be obtained through an extraction process using water, an organic solvent, or a mixed solvent thereof, and includes the extract's dry powder or any form formulated using it.
- the extract includes fractions obtained from the extract that have undergone the extraction process.
- the extraction method of the extract is not particularly limited, and may be extracted by, for example, stirring extraction, shaking extraction, hot water extraction, cold immersion extraction, reflux cooling extraction, or ultrasonic extraction.
- the extraction solvent may be a polar solvent such as water or a C 1 -C 4 lower alcohol, a non-polar solvent such as hexane, chloroform, dichloromethane, or ethyl acetate, or a mixture of two or more of these.
- a polar solvent such as water or a C 1 -C 4 lower alcohol
- a non-polar solvent such as hexane, chloroform, dichloromethane, or ethyl acetate, or a mixture of two or more of these.
- composition of the present invention contains not only the red bean flower bud extract, but also other active ingredients with the same or similar functions, or by additionally containing other active ingredients with different functions from the above ingredients, to treat neuroinflammatory diseases. It can be prepared as a pharmaceutical composition for prevention or treatment.
- Microglia which play the role of macrophages in the brain, are important cells that regulate immune responses in the central nervous system. Their activation plays an important role in maintaining CNS homeostasis by removing foreign substances caused by drugs or toxins and secreting nerve growth factors.
- harmful stress such as signals generated from damaged neurons, accumulation of abnormal proteins modified by external stimuli, or invasion of pathogens, the activity of microglial cells increases excessively, causing damage to nerve cells, leading to neurodegeneration. It can cause diseases.
- excessively activated microglia actively engage in phagocytosis, proliferate, and express pro-inflammatory cytokines and inflammation-related genes to produce inflammatory mediators.
- microglial cells Activation of microglial cells has the positive effect of removing damaged cells and protecting nerve cells from invading bacteria or viruses, but also causes activation of astroglial cells, production of nitric oxide (NO), and increase in cytokines such as TNF- ⁇ . Because it is also toxic to nerve cells and causes death of nerve cells, the resulting activation of microglial cells worsens damage to nerve cells and causes neurodegenerative diseases. Therefore, a method of suppressing excessive activity of microglial cells can be a treatment method for neurodegenerative diseases.
- NO nitric oxide
- astrocytes are also known to play an important role in maintaining normal brain activity. In particular, they are known to play a role in neuronal synapse formation, synapse number control, synaptic function, and differentiation of neural stem cells into neurons. there is.
- these astrocytes become excessively reactive, that is, when they remain in an excessively activated state, they activate microglia, cause death of nerve cells, and induce death of neighboring nerve cells, which can lead to degenerative neurological diseases. It acts as a cause. Therefore, suppressing the activation of activated astroglial cells can also be a new treatment method for neurodegenerative diseases.
- the present invention relates to a pharmaceutical composition for preventing or treating neurodegenerative diseases, which contains an extract of Red bean flower buds as an active ingredient.
- the Red Bean Flower bud extract may be a methanol extract of Red Bean Flower buds.
- the neurodegenerative disease is Alzheimer's disease, Parkinson's disease, Creutzfeldt-Jakob disease (CJD), Hallerforten-Spartz disease, Huntington's disease, multiple system atrophy, dementia, fronttemporal dementia, amyotrophic lateral lesions.
- Sclerosis spinal muscular atrophy, spinocerebellar atrophy (SCA), meningoencephalitis, bacterial meningoencephalitis, viral meningoencephalitis, CNS autoimmune disorder, multiple sclerosis (MS), and acute ischemic injury.
- the neurodegenerative disease may be a neurodegenerative disease in which the activity of astroglial cells or microglial cells is increased.
- the present invention relates to a pharmaceutical composition for reducing the activity of microglial cells in neurodegenerative diseases containing an extract of red bean flower buds as an active ingredient.
- composition of the present invention can inhibit hyperactivation of microglial cells in the brain cortex.
- the composition of the present invention may exhibit a protective effect against damage caused to nerve cells by activated microglia.
- composition of the present invention can inhibit the expression of proinflammatory cytokines and iNOS (inducible nitric oxide synthase).
- the composition of the present invention can inhibit the production of nitric oxide (NO).
- compositions of the present invention can reduce the expression and release of IL-1 ⁇ in the brain cortex.
- prevention refers to any action that inhibits or delays the occurrence, spread, and recurrence of a neuroinflammatory disease or neurodegenerative disease by administering the pharmaceutical composition according to the present invention
- treatment refers to any action of the present invention. It refers to any act of improving or beneficially changing the symptoms of a neuroinflammatory disease or neurodegenerative disease by administering a composition.
- Korean Medical Association etc. to know the exact criteria for diseases for which our composition is effective and to determine the degree of improvement, improvement, and treatment. will be.
- therapeutically effective amount used in combination with an active ingredient in the present invention refers to an amount effective in preventing or treating neuroinflammatory diseases or neurodegenerative diseases, and the therapeutically effective amount of the composition of the present invention is determined by several factors, For example, it may vary depending on the administration method, target area, and patient's condition. Therefore, when used in the human body, the dosage must be determined as appropriate by considering both safety and efficiency. It is also possible to estimate the amount used in humans from the effective amount determined through animal testing. These considerations in determining an effective amount include, for example, Hardman and Limbird, eds., Goodman and Gilman's The Pharmacological Basis of Therapeutics, 10th ed. (2001), Pergamon Press; and E.W. Martin ed., Remington's Pharmaceutical Sciences, 18th ed. (1990), Mack Publishing Co.
- the pharmaceutical composition of the present invention is administered in a pharmaceutically effective amount.
- pharmaceutically effective amount refers to an amount that is sufficient to treat a disease with a reasonable benefit/risk ratio applicable to medical treatment and does not cause side effects, and the effective dose level is determined by the patient's Health status, type of neuroinflammatory disease or neurodegenerative disease, cause of onset of neuroinflammatory disease or neurodegenerative disease, severity, activity of drug, sensitivity to drug, method of administration, time of administration, route of administration and excretion rate, treatment period, It may be determined based on factors including drugs combined or used simultaneously and other factors well known in the medical field.
- composition of the present invention may be administered as an individual therapeutic agent or in combination with other therapeutic agents, may be administered sequentially or simultaneously with conventional therapeutic agents, and may be administered singly or multiple times. Considering all of the above factors, it is important to administer an amount that can achieve maximum effect with the minimum amount without side effects, and this can be easily determined by a person skilled in the art.
- the pharmaceutical composition of the present invention may contain a carrier, diluent, excipient, or a combination of two or more commonly used in biological products.
- a carrier diluent, excipient, or a combination of two or more commonly used in biological products.
- pharmaceutically acceptable means that the composition exhibits non-toxic properties to cells or humans exposed to the composition.
- the carrier is not particularly limited as long as it is suitable for in vivo delivery of the composition, for example, Merck Index, 13th ed., Merck & Co. Inc.
- saline solution sterilized water, Ringer's solution, buffered saline solution, dextrose solution, maltodextrin solution, glycerol, ethanol, and one or more of these ingredients can be mixed and used, and if necessary, other ingredients such as antioxidants, buffers, and bacteriostatic agents. Normal additives can be added.
- diluents, dispersants, surfactants, binders, and lubricants can be additionally added to formulate dosage forms such as aqueous solutions, suspensions, emulsions, etc., into pills, capsules, granules, or tablets.
- it can be preferably formulated according to each disease or ingredient using an appropriate method in the art or a method disclosed in Remington's Pharmaceutical Science (Mack Publishing Company, Easton PA, 18th, 1990).
- the pharmaceutical composition may be one or more formulations selected from the group including oral formulations, topical formulations, suppositories, sterile injectable solutions, and sprays, with oral or injectable formulations being more preferable.
- the term "administration” means providing a predetermined substance to an individual or patient by any appropriate method, and is administered parenterally (e.g., intravenously, subcutaneously, intraperitoneally) according to the desired method. Alternatively, it can be applied topically as an injection formulation) or orally administered, and the dosage range varies depending on the patient's weight, age, gender, health status, diet, administration time, administration method, excretion rate, and severity of the disease.
- Liquid preparations for oral administration of the composition of the present invention include suspensions, oral solutions, emulsions, syrups, etc., and in addition to the commonly used simple diluents such as water and liquid paraffin, various excipients such as wetting agents, sweeteners, fragrances, and preservatives are used. etc. may be included together.
- Preparations for parenteral administration include sterile aqueous solutions, non-aqueous solvents, suspensions, emulsions, freeze-dried preparations, suppositories, etc.
- the pharmaceutical composition of the present invention may be administered by any device capable of transporting the active agent to target cells.
- Preferred administration methods and formulations include intravenous injection, subcutaneous injection, intradermal injection, intramuscular injection, and drip injection.
- Injections include aqueous solvents such as physiological saline solution and Ringer's solution, non-aqueous solvents such as vegetable oil, higher fatty acid esters (e.g., ethyl oleate, etc.), and alcohols (e.g., ethanol, benzyl alcohol, propylene glycol, glycerin, etc.).
- stabilizers to prevent deterioration
- emulsifiers e.g., ascorbic acid, sodium bisulfite, sodium pyrosulphite, BHA, tocopherol, EDTA, etc.
- buffers for pH adjustment e.g., buffers for pH adjustment
- agents to prevent microbial growth e.g., ascorbic acid, sodium bisulfite, sodium pyrosulphite, BHA, tocopherol, EDTA, etc.
- emulsifiers e.g., ascorbic acid, sodium bisulfite, sodium pyrosulphite, BHA, tocopherol, EDTA, etc.
- emulsifiers e.g., buffers for pH adjustment
- agents to prevent microbial growth e.g., buffers for pH adjustment, and
- the term "individual” refers to monkeys, cows, horses, sheep, pigs, chickens, turkeys, quails, cats, dogs, including humans who have or may develop the neuroinflammatory disease or neurodegenerative disease. This refers to all animals, including mice, rats, rabbits, or guinea pigs, and the above diseases can be effectively prevented or treated by administering the pharmaceutical composition of the present invention to the subject.
- the pharmaceutical composition of the present invention can be administered in combination with existing therapeutic agents.
- the pharmaceutical composition of the present invention may further include pharmaceutically acceptable additives, wherein the pharmaceutically acceptable additives include starch, gelatinized starch, microcrystalline cellulose, lactose, povidone, colloidal silicon dioxide, and calcium hydrogen phosphate. , lactose, mannitol, taffy, gum arabic, pregelatinized starch, corn starch, powdered cellulose, hydroxypropyl cellulose, Opadry, sodium starch glycolate, lead carnauba, synthetic aluminum silicate, stearic acid, magnesium stearate, aluminum stearate, Calcium stearate, white sugar, dextrose, sorbitol, and talc may be used.
- the pharmaceutically acceptable additive according to the present invention is preferably contained in an amount of 0.1 to 90 parts by weight based on the composition, but is not limited thereto.
- the present invention relates to a food composition for improving or preventing neuroinflammatory diseases, containing an extract of Red bean flower buds as an active ingredient.
- the extract may be a methanol extract.
- the composition of the present invention can be added as is or used together with other foods or food ingredients, and can be used appropriately according to conventional methods.
- the composition may contain food additives acceptable to the food industry, and the mixing amount of the active ingredients can be appropriately determined depending on the purpose of use (prevention, health, or therapeutic treatment).
- food supplement used in the present invention refers to a component that can be added as an auxiliary food additive, and can be appropriately selected and used by a person skilled in the art as it is added to manufacture each type of health functional food.
- food supplements include various nutrients, vitamins, minerals (electrolytes), flavoring agents such as synthetic and natural flavors, colorants and fillers, pectic acid and its salts, alginic acid and its salts, organic acids, and protective colloidal thickeners. , pH adjusters, stabilizers, preservatives, glycerin, alcohol, carbonating agents used in carbonated beverages, etc., but the types of food supplements of the present invention are not limited to the above examples.
- the food composition of the present invention may include health functional foods.
- health functional food used in the present invention refers to food manufactured and processed in the form of tablets, capsules, powders, granules, liquids, and pills using raw materials or ingredients with functional properties useful to the human body.
- functionality means controlling nutrients for the structure and function of the human body or obtaining useful effects for health purposes, such as physiological effects.
- the health functional food of the present invention can be manufactured by methods commonly used in the field of technology, and can be manufactured by adding raw materials and components commonly added in the field of technology. Additionally, the formulation of the health functional food can also be manufactured without limitation as long as it is a formulation recognized as a health functional food.
- the food composition of the present invention can be manufactured in various types of formulations, and unlike general drugs, it is made from food as a raw material and has the advantage of not having side effects that may occur when taking the drug for a long period of time, and is excellent in portability, so the present invention Health functional foods can be consumed as supplements to prevent neuroinflammatory or neurodegenerative diseases or to enhance the effectiveness of treatments.
- compositions containing the cucurbit extract of the present invention as an active ingredient can be prepared by mixing known additives with other appropriate auxiliary ingredients that can be contained in health functional foods according to the selection of a person skilled in the art.
- foods that can be added include meat, sausages, bread, chocolate, candy, snacks, confectionery, pizza, ramen, other noodles, gum, dairy products including ice cream, various soups, beverages, tea, drinks, alcoholic beverages, and There are vitamin complexes, etc., and they can be manufactured by adding them to juices, teas, jellies, juices, etc. prepared using the extract according to the present invention as a main ingredient.
- the present invention also provides a method for preventing and treating neuroinflammatory diseases, comprising administering a pharmaceutically effective amount of Daphne genkwa flower bud extract to a subject.
- the pharmaceutical composition of the present invention is administered in a therapeutically effective or pharmaceutically effective amount.
- pharmaceutically effective amount means an amount sufficient to treat a disease with a reasonable benefit/risk ratio applicable to medical treatment, and the effective dose level is determined by the type and severity of the subject, age, sex, activity of the drug, and It can be determined based on factors including sensitivity, time of administration, route of administration and excretion rate, duration of treatment, concurrently used drugs, and other factors well known in the medical field.
- Daphne genkwa The flower buds of Daphne genkwa ( Daphne genkwa ) were purified, dried and ground to make a fine powder, and then the powder was mixed with 70% methanol (3.5 L) (powder:methanol at a ratio of 1:7 (w/w)). It was refluxed twice. Afterwards, it was filtered and concentrated under reduced pressure through a freeze-drying process, and 100 mg/ml of Adzuki bean flower bud extract (GFE) was prepared using DMSO (dimethyl sulfoxide) as a solvent.
- GFE Adzuki bean flower bud extract
- GFE did not show cytotoxicity in HAPI cells (microglial cell line), and NO production induced by LPS was found to be significantly inhibited by GFE.
- the concentration was found to be 10 ⁇ g/ml ( Figure 1A and B).
- GFE was found to significantly inhibit LPS-induced NO production in BV-2 cells, another microglial cell line ( Figure 1C and D).
- GFE was shown to significantly inhibit LPS-induced NO release without being cytotoxic ( Figures 1E and F ).
- GFE of the present invention has an anti-inflammatory effect, especially an inhibitory effect on neuroinflammation.
- the TNF- ⁇ mRNA level which was increased by LPS compared to the control group (vehicle), decreased in the GFE-treated group to a similar level as the control group ( Figure 2A and B), and the iNOS mRNA level increased by LPS was also significantly decreased by GFE. appeared to be inhibited ( Figure 2A and C).
- the increase in TNF- ⁇ protein release induced by LPS was also found to be significantly inhibited by GFE treatment (Figure 2D).
- GFE has an anti-inflammatory effect on microglial cells.
- the brain was removed, post-fixed with 4% paraformaldehyde for 24 hours, and then sequentially cryopreserved in 10%, 20%, and 30% sucrose (in PBS) at 4°C. Afterwards, 20- ⁇ m-thick serial sagittal sections were obtained using a CM3050S freezing microtome (Leica, Wetzlar, Germany), and Iba1 (ionized calcium binding adapter molecule 1) was extracted from the sections according to Gupta et al. Immunofluorescence staining was performed using the method described in 2020. Additionally, to evaluate the concentration-dependent effect of GFE on IL-1 ⁇ cytokine release after LPS treatment, IL-1b mRNA levels in the brains of the mice were confirmed by qRT-PCR.
- the level of immunoreactivity of Iba-1 a molecular marker of microglial cells, in the cortical area of the mouse brain was found to be significantly improved in the LPS injection group compared to the control group ( Figure 3B and C). Additionally, the number of Iba-1 positive microglia and the area of Iba1 + cells were found to be increased in the LPS-administered group compared to the control group ( Fig. 3D and E ).
- the morphological characteristics and increased Iba-1 immunoreactivity of microglial cells in the brain cortex were found to be significantly suppressed in mice administered GFE, and the brains of mice administered GFE were similar to those in the brain tissue of control mice. Small, round somas with numerous ramified microglia appeared ( Figures 3B to E).
- LPS-induced IL-1 ⁇ release in brain cortical tissue was found to be significantly reduced in a concentration-dependent manner by GFE treatment ( Figure 3F).
- Example 5 Red bean flower tree extract in vivo Effect of preventing nerve loss and promoting nerve cell proliferation
- GFE improved neuroinflammation in the mouse brain
- brain sections of the mouse in Example 4 were analyzed for the neural marker NeuN.
- the number of neurons in the prefrontal cortex was confirmed using immunostaining analysis.
- the mouse brain on the 2nd to 3rd day of life was extracted, the cortical area of the brain was separated, cut into small pieces, and digested in 0.025% trypsin/ethylene-diamine-tetraacetic acid for 30 minutes. Afterwards, the tissue was pulverized to obtain single cells (primary cortical neurons).
- Arg1 an alternatively activated microglial marker, was assayed in MGCs treated or not with GFE (10 ⁇ g/ml) for 48 hours.
- Zymosan-Red particles (10 g/ml) were treated with Zymosan-Red particles (10 g/ml), and 160 control cells were treated. Zymosan particle number/cell was quantified in cells (vehicle, 0.1% DMSO) and 130 GFE-treated cells.
- microglial activation after GFE treatment induces neuroprotective microglial function.
- MGCs were treated with the MAPK inhibitor PD98059 (10 ⁇ M), the ULK inhibitor SBI-0206965 (5 ⁇ M), and the NF- ⁇ inhibitor Bay 11-7082 (2.5 ⁇ M). After pretreatment for 1 h, stimulation was performed with LPS (1 ⁇ g/mL) in the presence/absence of GFE (10 ⁇ g/ml) for 48 hours, and NO production was confirmed.
- GFE suppresses the production of LPS-induced immune mediators through inactivation of MAPK and NF- ⁇ pathways.
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Abstract
Description
Claims (16)
- 팥꽃나무(Daphne genkwa) 꽃봉오리 추출물을 유효성분으로 함유하는, 신경 염증 질환의 예방 또는 치료용 약학적 조성물.
- 제 1항에 있어서, 추출물은 물, 유기용매, 아임계 유체 및 초임계 유체로 이루어진 군에서 선택되는 하나 이상의 용매로 추출된, 신경 염증 질환의 예방 또는 치료용 약학적 조성물.
- 제 1항에 있어서, 추출물은 메탄올 추출물인, 신경 염증 질환의 예방 또는 치료용 약학적 조성물.
- 제 1항에 있어서, 미세아교세포(microglia) 또는 성상아교세포(Astrocytes)의 활성이 증가된 신경 염증 질환인, 신경 염증 질환의 예방 또는 치료용 약학적 조성물.
- 제 1항에 있어서, 미세아교세포 또는 성상아교세포의 활성으로 유도된 뇌 피질의 신경 염증을 억제하는, 신경 염증 질환의 예방 또는 치료용 약학적 조성물.
- 팥꽃나무 꽃봉오리 추출물을 유효성분으로 함유하는, 신경 퇴행성 질환의 예방 또는 치료용 약학적 조성물.
- 제 6항에 있어서, 신경 퇴행성 질환은 알츠하이머 질환, 파킨슨 질환, 크로이츠펠트-야콥 질환(CJD), 할러포르텐-스파츠 질환, 헌팅톤 질환, 다체계 위축증, 치매, 프론템포랄 치매, 근위축성 측삭경화증, 척수성 근위축증, 척수소뇌 위축증(SCA), 수막뇌염, 세균성 수막뇌염, 바이러스성 수막뇌염, CNS 자가면역 장애, 다발성 경화증(MS) 및 급성 허혈성 상해로 이루어진 군으로부터 선택되는 어느 하나인, 신경 퇴행성 질환의 예방 또는 치료용 약학적 조성물.
- 제 6항에 있어서, 성상아교세포 또는 미세아교세포의 활성이 증가된 신경 퇴행성 질환인, 신경 퇴행성 질환의 예방 또는 치료용 약학적 조성물.
- 팥꽃나무 꽃봉오리 추출물을 유효성분으로 함유하는 신경 퇴행성 질환에서 미세아교세포의 활성을 감소시키기 위한 약학적 조성물.
- 제 9항에 있어서, 뇌 피질에서 미세아교세포의 과활성화(hyperactivation)를 억제하는, 약학적 조성물.
- 제 9항에 있어서, 활성화된 미세아교세포가 신경세포에 미치는 손상에 대하여 보호 효과를 나타내는, 약학적 조성물.
- 제 9항에 있어서, 전염증성(proinflammatory) 사이토카인 및 iNOS(inducible nitric oxide synthase)의 발현을 억제하는, 약학적 조성물.
- 제 9항에 있어서, 일산화질소(NO; nitric oxide)의 생성을 억제하는, 약학적 조성물.
- 제 9항에 있어서, 뇌 피질에서 IL-1β의 발현 및 방출을 감소시키는, 약학적 조성물.
- 팥꽃나무 꽃봉오리 추출물을 유효성분으로 함유하는, 신경 염증 질환의 개선 또는 예방용 식품 조성물.
- 약학적으로 유효한 양의 제1항의 약학적 조성물을 개체에 투여하는 단계를 포함하는 신경 염증 질환의 예방 또는 치료방법.
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| US18/845,647 US20250195600A1 (en) | 2022-03-11 | 2023-02-27 | Composition for prevention or treatment of neuroinflammation, containing daphne genkwa flower bud extract as active ingredient |
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| KR1020220030501A KR20230133466A (ko) | 2022-03-11 | 2022-03-11 | 팥꽃나무 꽃봉오리 추출물을 유효성분으로 함유하는 신경 염증의 예방 또는 치료용 조성물 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130057878A (ko) * | 2011-11-24 | 2013-06-03 | 한국생명공학연구원 | 팥꽃나무 추출물로부터 분리된 화합물을 포함하는 신경퇴행성 질환 예방 또는 치료용 약학적 조성물 |
| KR101859196B1 (ko) * | 2016-11-14 | 2018-05-17 | 한국생명공학연구원 | 팥꽃나무 꽃 추출물 또는 이의 분획물을 유효성분으로 포함하는 신경퇴행성 질환 예방 또는 치료용 약학 조성물 |
| KR20190055600A (ko) * | 2017-11-15 | 2019-05-23 | 한국생명공학연구원 | 다프난 또는 포볼 다이터펜계 화합물을 포함하는 신경퇴행성 질환 예방 또는 치료용 조성물 |
| CN113248361A (zh) * | 2020-02-10 | 2021-08-13 | 沈阳药科大学 | 倍半萜类化合物及其医药用途 |
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2022
- 2022-03-11 KR KR1020220030501A patent/KR20230133466A/ko not_active Ceased
-
2023
- 2023-02-27 US US18/845,647 patent/US20250195600A1/en active Pending
- 2023-02-27 WO PCT/KR2023/002730 patent/WO2023171969A1/ko not_active Ceased
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| KR20130057878A (ko) * | 2011-11-24 | 2013-06-03 | 한국생명공학연구원 | 팥꽃나무 추출물로부터 분리된 화합물을 포함하는 신경퇴행성 질환 예방 또는 치료용 약학적 조성물 |
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| KR20190055600A (ko) * | 2017-11-15 | 2019-05-23 | 한국생명공학연구원 | 다프난 또는 포볼 다이터펜계 화합물을 포함하는 신경퇴행성 질환 예방 또는 치료용 조성물 |
| CN113248361A (zh) * | 2020-02-10 | 2021-08-13 | 沈阳药科大学 | 倍半萜类化合物及其医药用途 |
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