WO2005077390A1 - 血糖値低下剤、糖尿病治療・予防剤及びその製造方法 - Google Patents
血糖値低下剤、糖尿病治療・予防剤及びその製造方法 Download PDFInfo
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- WO2005077390A1 WO2005077390A1 PCT/JP2005/002309 JP2005002309W WO2005077390A1 WO 2005077390 A1 WO2005077390 A1 WO 2005077390A1 JP 2005002309 W JP2005002309 W JP 2005002309W WO 2005077390 A1 WO2005077390 A1 WO 2005077390A1
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- enterococcus
- cells
- microorganism
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- culture
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/20—Pills, tablets, discs, rods
- A61K9/2004—Excipients; Inactive ingredients
- A61K9/2022—Organic macromolecular compounds
- A61K9/205—Polysaccharides, e.g. alginate, gums; Cyclodextrin
- A61K9/2059—Starch, including chemically or physically modified derivatives; Amylose; Amylopectin; Dextrin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K35/00—Medicinal preparations containing materials or reaction products thereof with undetermined constitution
- A61K35/66—Microorganisms or materials therefrom
- A61K35/74—Bacteria
- A61K35/741—Probiotics
- A61K35/744—Lactic acid bacteria, e.g. enterococci, pediococci, lactococci, streptococci or leuconostocs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P3/00—Drugs for disorders of the metabolism
- A61P3/08—Drugs for disorders of the metabolism for glucose homeostasis
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P3/00—Drugs for disorders of the metabolism
- A61P3/08—Drugs for disorders of the metabolism for glucose homeostasis
- A61P3/10—Drugs for disorders of the metabolism for glucose homeostasis for hyperglycaemia, e.g. antidiabetics
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/14—Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
- A61K9/19—Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles lyophilised, i.e. freeze-dried, solutions or dispersions
Definitions
- the present invention relates to a blood sugar lowering agent, an agent for treating and preventing diabetes, and a method for producing the same, comprising lactic acid bacteria as an active ingredient.
- diabetes which is one of lifestyle-related diseases and adult diseases, has been widespread due to excessive intake of calories through meals and the like.
- the number of people with diabetes is said to exceed 6.5 million in Japan alone.
- the reserve army of glucose-impaired diabetics exceeds 1 in 10 people, or more than 10 million.
- An object of the present invention is to provide a blood sugar lowering agent and a therapeutic / prophylactic agent for diabetes that are highly safe and effective.
- the inventor of the present application has found that various microorganisms (lactic acid bacteria) belonging to the genus Enterococcus have an action of extremely effectively lowering blood sugar levels. Furthermore, the present inventor has found that those microorganisms whose origin is so-called intestinal bacteria are substantially non-toxic orally and have extremely high pharmacological activity. As a result, the present inventors reduced the microorganisms belonging to the genus Enterococcus to various blood sugar lowering agents and various symptoms of diabetes. It does not cause various side effects such as those of diabetic drugs, but does not cause problems when swallowed even if taken in combination with other drugs, and has a blood sugar lowering effect and a therapeutic and preventive effect for diabetes. The present inventors have found that they can be effectively used as drugs having the same, and completed the present invention as follows.
- the present invention relates to a genus consisting of a bacterium of the genus consisting of Enterococcus ficharis, Enterococcus fezicum, Enterococcus ebevim, Enterococcus durans, Enterococcus salino cliius, Enterococcus miteisu, and a selected group of Enterococcus' equinoccus.
- the present invention relates to a blood sugar lowering agent containing one or more microorganisms as an active ingredient.
- the present invention also relates to a genus of the genus consisting of Enterococcus fusecharis, Enterococcus fezicum, Enterococcus ebevim, Enterococcus durans, Enterococcus salivarius, Enterococcus.
- the present invention also relates to an agent for treating or preventing diabetes, comprising two or more kinds of microorganisms as active ingredients.
- the present invention also provides a blood sugar lowering agent or diabetes comprising a microorganism belonging to the genus Enterococcus as an active ingredient, comprising preparing a culture by culturing a microorganism belonging to the genus Enterococcus in a Rogosa liquid medium.
- the present invention also relates to a method for producing a therapeutic 'prophylactic agent.
- the microorganism is aerobically cultured in a Rogosa liquid medium under the conditions of pH 6.5-8.0 and a temperature of 36 to 38 ° C (for example, without limitation). Culture).
- the above-mentioned production method further comprises the step of collecting and washing the viable cells prepared as described above.
- the washed bacterial cells may be suspended in a solvent such as physiological saline to prepare a bacterial suspension.
- a method for producing a blood sugar lowering agent or an agent for treating or preventing diabetes comprising a microorganism belonging to the genus Enterococcus as an active ingredient, comprising the following steps (a) to (e) is particularly preferred:
- the manufacturing method may further include the following (f)-(h):
- step (f) heating the bacterial suspension obtained in step (e) at 110-120 ° C for 5-10 minutes,
- the microorganism belonging to the genus Enterococcus preferably includes Enterococcus fusecharis, Enterococcus 'Fescium, Enterococcus' Ebim, Enterococcus.
- Bacterial community is one or more selected microorganisms.
- the blood sugar lowering agent and the diabetes treatment / prevention agent according to the present invention have a medicinal component of intestinal bacteria, and therefore can be swallowed even when taken in combination with other drugs that do not cause side effects. Lowering blood sugar without causing problems with combination, and treating diabetes and Extremely effective in prevention.
- microorganism lactic acid bacterium
- the method for treating cells the pharmacological effect, and the like used in the present invention will be described in detail.
- microorganisms belonging to the genus Enterococcus include bacteria belonging to the genus Enterococcus fusecharis, Enterococcus 'Feusumum, Enterococcus' Ebbim, Enterococcus.
- These microorganisms belonging to the genus Enterococcus can be obtained not only as commercial products, but also can be provided with various biological depositary institutions. Examples of such a biological depositary institution include the Patent Organism Depositary Center, National Institute of Advanced Industrial Science and Technology (Japan) and ATCC (American Type Culture Collection; USA). For example, Enterococcus faecalis bacteria have been deposited with ATCC (American Type Culture Collection; U.S.A.) under the accession number ATCC Number 700802 listed in Table 1 below. . In the present invention, Enterococcus faecalis KRI-68 strain can be obtained from ATCC based on this accession number and can be suitably used.
- Table 1 shows specific strains that are particularly useful in the present invention.
- numbers marked with "KRI" are reference numbers for identifying strains.
- strains can be obtained from Kawai Lactococci Laboratories, Inc. (Tokyo, Japan).
- Table 2 shows the bacteriological properties of the strains exemplified in Table 1.
- the microorganism belonging to the genus Enterococcus used in the present invention is not limited. However, it is preferable to culture in a Rogosa liquid medium as described below.
- a blood sugar lowering agent and an agent for treating and preventing diabetes can be produced using the microorganism belonging to the genus Enterococcus.
- microorganisms belonging to the genus Enterococcus preferably cultured (proliferated) in a Rogosa liquid medium, can be used for producing a blood sugar lowering agent and an agent for treating and preventing diabetes.
- the culture of the microorganism belonging to the genus Enterococcus obtained as described above may be directly used for the production of a blood sugar lowering agent and an agent for treating and preventing diabetes.
- the culture supernatant separated from the culture (including a small amount of bacterial cells, a part of the bacterial cells, secretions of viable cells, etc.) is also used for the production of a blood sugar lowering agent and an agent for treating and preventing diabetes. be able to.
- the cells isolated from the culture for the production of a blood sugar lowering agent and a therapeutic / prophylactic agent for diabetes.
- the microorganism belonging to the genus Enterococcus is cultured, for example, in a Rogosa liquid medium (for example, aerobically static culture under conditions of pH 6.5 to 8.0 and a temperature of 36 to 38 ° C). ) And centrifuge the resulting culture The cells obtained by separating and collecting the precipitate are used for the production of a blood sugar lowering agent and an agent for treating diabetes.
- the cells thus obtained may be used directly for the production of a drug.However, the cells are washed with an isotonic solution such as physiological saline, and then suspended in an isotonic solution such as physiological saline. You can use it after it becomes cloudy.
- the obtained bacterial cells are subjected to any treatment including cell destruction treatment such as, for example, heat treatment, ultrasonic treatment, freeze-thaw treatment, and the like to prepare a treated bacterial cell product.
- cell destruction treatment such as, for example, heat treatment, ultrasonic treatment, freeze-thaw treatment, and the like to prepare a treated bacterial cell product.
- the treated bacterial cells may contain live cells, but are preferably substantially dead cells (for example, a composition containing dead cells such as a dead cell suspension).
- the dead cells include disrupted cells obtained by destroying the cells obtained above by ultrasonic treatment or the like, heat-treated cells obtained by heating the cells obtained above, and the like.
- the killed cells contained in the treated cells used for the production of the blood sugar lowering agent and the agent for treating and preventing diabetes may be whole cells or a part of the cells.
- the microorganism belonging to the genus Enterococcus used in the production of the blood sugar lowering agent and the agent for treating and preventing diabetes of the present invention may be prepared, for example, as the following cells or treated cells.
- a microorganism belonging to the genus Enterococcus is inoculated into 5 liters of the aforementioned Rogosa liquid medium, and aerobically for 5 hours at a temperature of 37 ° C (36-38 ° C) in the range of 6.5-8.0. to stationary culture to prepare the viable cell number 10 9 / ml of culture.
- the resulting culture was subjected to continuous centrifugation at 120 OO rpm to collect viable bacteria, washed twice with physiological saline, suspended in physiological saline, and suspended in 50 ml of bacterial suspension (10 11 Pcs / ml).
- a microorganism belonging to the genus Enterococcus preferably, a culture, a microorganism or a treated product of the microorganism
- the blood glucose level can be reduced by 10% to 40% as compared with the non-administration group.
- the acute toxicity of the microorganism of the present invention is extremely low.
- the LD value 50% lethal dose
- a drug containing the microorganism according to the present invention preferably, a culture, a microbial cell, or a processed product of the microbial cell
- a drug containing the microorganism according to the present invention preferably, a culture, a microbial cell, or a processed product of the microbial cell
- a diabetic therapeutic agent and a diabetic preventive agent closely related to the blood sugar lowering effect are very effective as a diabetic therapeutic agent and a diabetic preventive agent closely related to the blood sugar lowering effect.
- the blood sugar lowering agent and the diabetes treatment / prevention agent of the present invention may contain a pharmaceutically acceptable carrier or additive.
- pharmaceutically acceptable carrier or additives include water, pharmaceutically acceptable organic solvents, collagen, polyvinyl alcohol, polyvinylpyrrolidone, carboxybutyl polymer, sodium alginate, pectin, xanthan gum, gum arabic, casein, Examples include gelatin, agar, glycerin, propylene glycol, paraffin, stearyl alcohol, stearic acid, sorbitol, ratatose and the like.
- the added caroten used is selected appropriately or in combination according to the dosage form of the drug.
- the blood sugar lowering agent and the preventive agent for treating diabetes include other extenders, diluents, binders, lubricants, disintegrators, disintegrants, wetting agents, stabilizers, buffers, and flavoring agents commonly used in pharmacy. It may further contain additives such as a preservative and a coloring agent.
- the blood sugar lowering agent and the diabetes treatment / prevention agent of the present invention can be, but not limited to, administered orally or by intravenous injection.
- the blood sugar lowering agent and the prophylactic agent for treating diabetes mellitus of the present invention include solid preparations including powders including tablets, granules, pills, capsules, and lyophilized powders, diels, and physiological saline. Ordinary dosage forms such as liquid preparations, suspensions, syrups and other liquid preparations dissolved in water.
- Subjects to which the blood sugar lowering agent and the anti-diabetic agent of the present invention are administered are mammals including humans, domestic animals, pet animals, experimental (test) animals, and the like. In particular, it is preferable for mammals such as humans having a high blood sugar level or humans having a predisposition to diabetes easily.
- the dosage of the blood sugar lowering agent and the diabetes treatment / prevention agent of the present invention varies depending on the animal species to be administered, age and body weight, administration route, number of administrations, and the like, and is widely changed by those skilled in the art. be able to.
- the oral dose of a microorganism as an active ingredient preferably, a culture, a microbial cell, or a processed product of the microbial cell
- the blood sugar lowering agent and anti-diabetic agent of the present invention are preferably, but not limited to, administered at least once a day and continuously (eg, for one month or more).
- the present invention includes administering a microorganism belonging to the above-described genus Enterococcus (preferably a culture, a bacterial body or a processed product of the microorganism) or a pharmaceutical composition containing the same as described above. It also relates to methods for lowering blood glucose levels, and methods for treating and preventing or preventing diabetes.
- a microorganism belonging to the above-described genus Enterococcus preferably a culture, a bacterial body or a processed product of the microorganism
- a pharmaceutical composition containing the same as described above preferably a culture, a bacterial body or a processed product of the microorganism
- diabetic mice ⁇ Ay male were obtained from Clea Japan, Inc. at the age of 4 weeks, and used for experiments after pre-breeding for 2 weeks.
- Seven animals were housed in one cage at a room temperature of 22 ⁇ 1 ° C, a humidity of 55.0 ⁇ 10%, and a light cycle of 12 hours.
- tap water passed through a solid feed was placed in a water bottle and allowed to be freely taken.
- an advantage test strip S was set in Advantage II, which is commercially available from Roche's D.A. Sticky Co., Ltd., and the collected blood was poured thereinto to measure the blood glucose level.
- Urine collection was performed once every 5 days. A net was set between the stick bottle and the transparent cup, a mouse was placed on the stick bottle side, and urine was collected in the transparent cup. The collected urine was impregnated into the per-par IIG, pH purchased from Eiken-Danigaku Co., Ltd., and judged on a 6-point scale of 1, ⁇ , +, + +, + + + and + + + + . + The urine judged to be above was judged to have diabetes.
- Enterococcus faecium KRI-622 strain was inoculated into Rogosa liquid medium according to the above-described example of preparing viable cells, and aerobically at pH 6.5-8.0 and a temperature of 36-38 ° C. After static culture, a bacterial suspension (live cells) was prepared in physiological saline. From this bacterial suspension, heat-treated dead cells (dead cell suspension) were prepared in accordance with the above-described example of preparing dead cells.
- the prepared viable cell suspension (cells: 10 11 cells Z days) or the heat-killed cells (80 mg / 0.5 ml Z days) was added to the diabetic mouse KK Ay (male 6 Weekly breeding, average body weight 31 g, 7 animals per group) were orally administered daily, and bred for 85 days.
- blood was collected from the tail artery of the mouse once every five days. Table 4 shows the results of measuring the blood glucose level in blood by the above method.
- the experiment was carried out in the same manner as in Example 1, except that Enterococcus faecalis KRI-68 strain was used instead of the Enterococcus faecium KRI-622 strain.
- the prepared viable cell suspension (cells: 10 11 cells / day) or the heat-killed cells (80 mgZ 0.5 mlZ day) was treated with the above diabetic mouse KK Ay (male bred 6 weeks old, average weight 31 g, (7 animals per group) were orally administered daily and kept for 85 days.
- blood was collected from the tail artery of the mouse once every five days. Table 5 shows the results of measuring blood glucose in the blood using the above method.
- the microorganism Enterococcus' Feucharis KRI-68 showed a remarkable reduction in blood sugar level of dead cells at 39% on day 80 and 36% on day 85. Live cells also showed a 16% and 17% reduction on days 80 and 85, respectively.
- Example 2 An experiment was carried out in the same manner as in Example 1, except that Enterococcus aebium KRI-1223 was used instead of the Enterococcus fezium KRI-622 strain. It was.
- the prepared viable cell suspension (cells: 10 11 cells Z day) or the heat-killed cells (80 mg Z 0.5 ml Z day) was treated with the above diabetic mouse KK Ay (male bred 6 weeks old, average weight 31 g, (7 animals per group) were orally administered daily and kept for 85 days.
- blood was collected from the tail artery of the mouse once every five days. Table 6 shows the results of measuring the blood glucose level in blood using the above method.
- the microorganism Enterococcus' ebium KRI-1223 showed a blood glucose reduction rate of 11% on day 80 and 12% on day 85 in dead cells. For live cells, the reduction rate was 1.8% on day 80 and 8% on day 85.
- Enterococcus durans Enterococcus durans (Enterococcus) An experiment was performed in the same procedure as in Example 1.
- the prepared viable cell suspension (cells: 10 11 cells Z days) or the heat-killed cells (80 mgZ 0.5 mlZ days) was treated with the above diabetic mouse KK Ay (male bred 6 weeks old, average weight 31 g, (7 animals per group) were orally administered daily and kept for 85 days.
- blood was collected from the mouse tail artery once every five days. Table 7 shows the results of measuring the blood glucose level in blood by the above method.
- Viable cells 238 265 344 365 378 379 Heat treated cells 238 263 347 353 357 359 [0055] As shown in Table 7, the microorganism Enterococcus' durans KRI-614 showed a 14% reduction in blood glucose level on the dead cells on days 80 and 85, respectively. The viable cells showed a 9% reduction on day 80 and day 85, respectively.
- Enterococcus Fetsumum KRI-622 strains, instead of Enterococcus miteis (Enterococcus mitis) KRI-814 strains, Enterococcus 'salivarius (Enterococcus s alivarius) KRI-1216 strain, and Enterococcus' equinus (usoc 120 n) enteroccus An experiment was carried out in the same manner as in Example 1, except that each was used.
- the prepared viable cell suspension (cells: 10 11 cells / day) or heat-killed cells (80 mg / 0.5 ml Z-day) was treated with the above-mentioned diabetic mouse KK Ay (male 6 weeks old, average (Body weight: 31 g, 7 animals in each group) was orally administered daily and kept for 85 days.
- blood was collected from the tail artery of the mouse once every five days. Table 8 shows the results of measuring the blood glucose level in blood by the above method.
- Example 2 Using ICR mice (male, 6 weeks old, average body weight, 30 g ⁇ 0.7 g), the acute toxicity of the cells or the treated cells according to the present invention was examined.
- a live cell suspension of each strain was prepared according to the above-mentioned preparation example of live cells. From the obtained raw cell suspension, one animal per 9 X 10 9 pieces mice, 9 X 10 8 cells, saline suspension to contain viable bacteria dose of 9 X 10 7 cells of three stages was administered intraperitoneally to ICR mice, and the survival of the mice was observed for 14 days (10 mice per group). Table 9 shows LD values measured according to the BEHRENS-KARBER method.
- Example 2 80 mg of the freeze-dried product of Enterococcus' Fescium KRI-622 obtained according to Example 1 (corresponding to 3 x 10 11 dead cells) is uniformly mixed with 920 mg of purified starch powder, and tableted for oral administration. Tablets. This tablet corresponds to a dead cell dose 6 X 1 0 9 pieces / kg body weight in an adult weighing 60 kg.
- the blood sugar lowering agent and the diabetes preventive agent of the present invention are thus obtained by mixing the cells with a pharmaceutically acceptable carrier based on the above standard dose and the like, to obtain the desired drug having the above-mentioned medicinal effect. It can be in dosage form.
- the blood sugar lowering agent and the anti-diabetic agent comprising the Enterobacter genus bacterium (preferably a culture of the bacterium, a cell or a processed product of the cell) of the present invention as an active ingredient have a high blood sugar lowering action and For safety, it can be suitably used, for example, for administration to diabetic patients. Further, their production methods can be advantageously used for producing a drug having a high blood glucose lowering effect.
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Cited By (6)
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JP2012020974A (ja) * | 2010-07-15 | 2012-02-02 | Yasutomo Arashima | 乳酸菌共生培養抽出液 |
JP2019535828A (ja) * | 2016-11-21 | 2019-12-12 | コリア フード リサーチ インスティチュートKorea Food Research Institute | ギ酸生成能に優れた菌株を有効成分として含む肥満または肥満によって惹起された代謝症候群の予防または治療用組成物 |
JP2020511434A (ja) * | 2016-11-21 | 2020-04-16 | コリア フード リサーチ インスティチュートKorea Food Research Institute | ギ酸またはその薬学的に許容可能な塩を有効成分として含む肥満または肥満によって惹起された代謝症候群の予防または治療用組成物 |
WO2021132453A1 (ja) | 2019-12-27 | 2021-07-01 | 国立大学法人神戸大学 | 毛細血管障害抑制剤、毛細血管障害改善剤、及び毛細血管新生促進剤 |
JP2022552759A (ja) * | 2019-10-24 | 2022-12-20 | ドクター ティージェイ シーオー.,エルティーディー. | エンテロコッカス・フェカーリスを有効成分として含有する肥満または肥満から誘導された代謝症候群の予防または治療用の組成物 |
CN116200302A (zh) * | 2023-01-10 | 2023-06-02 | 太原市威尔潞威科技发展有限公司 | 屎肠球菌lv-434、微生物菌剂及其制备方法和应用 |
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JP2012020974A (ja) * | 2010-07-15 | 2012-02-02 | Yasutomo Arashima | 乳酸菌共生培養抽出液 |
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JP2020511434A (ja) * | 2016-11-21 | 2020-04-16 | コリア フード リサーチ インスティチュートKorea Food Research Institute | ギ酸またはその薬学的に許容可能な塩を有効成分として含む肥満または肥満によって惹起された代謝症候群の予防または治療用組成物 |
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JP7481023B2 (ja) | 2019-10-24 | 2024-05-10 | ドクター ティージェイ シーオー.,エルティーディー. | エンテロコッカス・フェカーリスを有効成分として含有する肥満または肥満から誘導された代謝症候群の予防または治療用の組成物 |
WO2021132453A1 (ja) | 2019-12-27 | 2021-07-01 | 国立大学法人神戸大学 | 毛細血管障害抑制剤、毛細血管障害改善剤、及び毛細血管新生促進剤 |
CN114901296A (zh) * | 2019-12-27 | 2022-08-12 | 国立大学法人神户大学 | 毛细血管疾病抑制剂、毛细血管疾病改善剂、以及毛细血管新生促进剂 |
CN116200302A (zh) * | 2023-01-10 | 2023-06-02 | 太原市威尔潞威科技发展有限公司 | 屎肠球菌lv-434、微生物菌剂及其制备方法和应用 |
CN116200302B (zh) * | 2023-01-10 | 2023-10-27 | 太原市威尔潞威科技发展有限公司 | 屎肠球菌lv-434、微生物菌剂及其制备方法和应用 |
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