WO2005117920A1 - 循環器機能障害因子除去剤 - Google Patents
循環器機能障害因子除去剤 Download PDFInfo
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- WO2005117920A1 WO2005117920A1 PCT/JP2005/010019 JP2005010019W WO2005117920A1 WO 2005117920 A1 WO2005117920 A1 WO 2005117920A1 JP 2005010019 W JP2005010019 W JP 2005010019W WO 2005117920 A1 WO2005117920 A1 WO 2005117920A1
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- Prior art keywords
- activated carbon
- spherical activated
- dysfunction
- agent
- circulatory
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- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K33/00—Medicinal preparations containing inorganic active ingredients
- A61K33/44—Elemental carbon, e.g. charcoal, carbon black
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P7/00—Drugs for disorders of the blood or the extracellular fluid
- A61P7/10—Antioedematous agents; Diuretics
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P9/00—Drugs for disorders of the cardiovascular system
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P9/00—Drugs for disorders of the cardiovascular system
- A61P9/04—Inotropic agents, i.e. stimulants of cardiac contraction; Drugs for heart failure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P9/00—Drugs for disorders of the cardiovascular system
- A61P9/10—Drugs for disorders of the cardiovascular system for treating ischaemic or atherosclerotic diseases, e.g. antianginal drugs, coronary vasodilators, drugs for myocardial infarction, retinopathy, cerebrovascula insufficiency, renal arteriosclerosis
Definitions
- the present invention relates to a cardiovascular dysfunction factor remover.
- the cardiovascular dysfunction remover of the present invention can improve circulatory dysfunction, particularly in patients with heart failure, and is effective in ameliorating cardiac dysfunction and treating or preventing heart failure by its ameliorating action.
- a healthy heart supplies blood according to the demand of peripheral tissues by its pump function.
- failure of the heart's pumping function makes it impossible to meet the blood demands of peripheral tissues.
- Such a condition is "heart failure".
- various regulatory mechanisms activate in the body to compensate for the heart's pump function.
- Early and late compensatory mechanisms are known as compensatory mechanisms for heart failure.
- Typical examples of early compensatory mechanisms include those that increase end-diastolic volume of the heart and restore cardiac output, those that increase sympathetic tone and increase cardiac contractility through circulatory reflexes,
- typical examples of the slow compensatory mechanism include cardiac hypertrophy, which increases the size of the heart muscle cells that make up the heart and thickens the walls of the heart, restricts the excretion of sodium ions and water by the kidneys, and reduces blood volume. There is a mechanism to increase.
- Such a compensatory mechanism increases circulating blood volume and venous return.
- this compensation mechanism results in excessive pooling of blood in the trunk vein, leading to depressive symptoms (eg, increased venous pressure, edema, or enlarged liver due to depressed blood).
- depressive heart failure a state in which venous depressed blood is further added to the heart pump dysfunction.
- such therapeutic agents for heart failure or congestive heart failure include inotropic agents, vasodilators, for example, ACE inhibitors and angiotensin II receptor antagonists (ARB), ⁇ -blockers, antiarrhythmias.
- Drugs or diuretics are widely used, but at present, the essential treatment for heart failure or congestive heart failure has not yet been established.
- furosemid is widely used as a first-line drug in diuretics for patients with depressive heart failure. Furosemide is a typical example of a loop diuretic, and has a strong diuretic effect because it inhibits sodium reabsorption and indirectly suppresses free water absorption.
- heart failure includes depressive heart failure unless otherwise specified.
- Non-patent document 1 Yasuharu Kihara, "Treatment and Diagnosis", Vol. 89, No. 1, 2001, 55-60
- the inventor of the present invention orally administered spherical activated carbon to a heart failure model animal (Dahl salt-sensitive rat) in order to intensively study effective means for improving heart dysfunction and treating and preventing heart failure. It was found that the elevation of BNP, a parameter of heart failure, was significantly suppressed, the progression of cardiac hypertrophy was significantly suppressed, and the fibrosis of the myocardium was also clearly suppressed.
- BNP Brain natriuretic peptide
- the present invention is based on these findings.
- the present invention relates to a cardiovascular dysfunction factor remover comprising spherical activated carbon as an active ingredient.
- a preferred embodiment of the agent for removing a cardiovascular dysfunction according to the present invention is for oral administration.
- the particle size of the spherical activated carbon is 0.01 to 2 mm.
- agent for removing a circulatory dysfunction factor is an agent for improving a circulatory dysfunction or an agent for preventing or treating a circulatory disease.
- the agent for removing a circulatory dysfunction factor according to the present invention is effective in improving circulatory dysfunction (particularly, cardiac dysfunction) without side effects by taking it as an oral drug, for example. It is effective in preventing or treating diseases such as heart disease (eg, heart failure or congestive heart failure) and venous thrombosis.
- heart disease eg, heart failure or congestive heart failure
- venous thrombosis e.g., venous thrombosis
- FIG. 1 is a graph showing urine volume (mL) in pharmacological test examples.
- FIG. 2 is a graph showing urinary sodium excretion (mmolZday) in pharmacological test examples.
- FIG. 3 is a graph showing blood pressure (mmHg) in a pharmacological test example.
- FIG. 4 is a graph showing serum BNP concentration (ngZmL) in pharmacological test examples.
- FIG. 5 is a graph showing heart weight (weight ratio) in pharmacological test examples.
- FIG. 6 is a graph showing left ventricular weight (weight ratio) in pharmacological test examples.
- FIG. 7 is a micrograph of a cardiac pathological specimen of a control group rat.
- FIG. 8 is a micrograph of a cardiac pathological specimen of a rat group administered with spherical activated carbon.
- FIG. 9 is a micrograph of a cardiac pathological specimen of a normal group of rats.
- the spherical activated carbon which is an active ingredient of the agent for removing a circulatory dysfunction factor of the present invention, is not particularly limited as long as it is a spherical activated carbon that can be used for medical treatment.
- Spherical activated carbon for administration that is, spherical activated carbon that can be used internally for medical purposes is preferred.
- the particle size of the spherical activated carbon is preferably 0.01 to 2 mm, more preferably 0.05 to 2 mm, and still more preferably 0.05 to 1 mm.
- the spherical activated carbon for example, the spherical activated carbon described in JP-A-11-292770 or JP-A-2002-308785 can be used.
- the spherical activated carbon described in JP-A-11-292770 will be described, and then the spherical activated carbon described in JP-A-2002-308785 will be described.
- the spherical activated carbon described in JP-A-11-292770 is preferably a spherical activated carbon having a diameter of 0.05 to 2 mm, more preferably 0.1 to Lmm. Further, it is preferably a spherical activated carbon having a specific surface area of 500 to 2000 m 2 Zg, more preferably 700 to 1500 m 2 Zg.
- the spherical activated carbon preferably has a pore radius of 100 to 75,000 angstroms and a void volume of 0.01 to 1 mLZg, more preferably 0.05 to 0.8 mLZg.
- the specific surface area is a value measured by a methanol adsorption method using an automatic adsorption amount measuring device.
- the void volume is a value measured by a mercury intrusion porosimeter.
- the above-mentioned spherical activated carbon is advantageous in that it does not disperse when taken, does not cause constipation even when used continuously, and does not cause constipation.
- the shape of a spherical activated carbon is one of the important factors, and it is important that the shape is substantially spherical.
- a spherical activated carbon derived from a petroleum-based pitch described later is particularly preferable because it is close to a true sphere.
- any activated carbon raw material for example, sawdust, coal, coconut shell, petroleum-based or coal-based pitches, or organic synthetic carbonaceous material is used. Molecules can be used.
- Spherical activated carbon can be produced, for example, by a method of activating carbonized raw materials. As a method of activation, it is necessary to maintain a purity that is acceptable for medical treatment, in which various methods such as steam activation, drug activation, air activation or carbon dioxide gas activation can be used.
- the spherical activated carbon described in JP-A-11-292770 includes granulated activated carbon of carbonaceous powder, spherical activated carbon of organic polymer firing, and petroleum hydrocarbon (petroleum pitch). There is a conventional spherical activated carbon.
- Granulated activated carbon of carbonaceous powder power is, for example, after granulating carbonaceous powder raw material into small spheres with a binder such as tar or pitch, and then in an inert atmosphere at a temperature of 600 to LOOO ° C. It can be obtained by firing, carbonizing, and then activating.
- a binder such as tar or pitch
- various methods such as steam activation, chemical activation, air activation, and carbon dioxide activation can be used.
- the steam activation is performed, for example, in a steam atmosphere at a temperature of 800 to 1100 ° C.
- the spherical activated carbon fired with an organic polymer is disclosed, for example, in Japanese Patent Publication No. 61-1366, and can be produced as follows.
- a condensing type or polyaddition type thermosetting prepolymer is mixed with a curing agent, a curing catalyst, an emulsifier, and the like, emulsified in water with stirring, and reacted while stirring at room temperature or while heating.
- the reaction system is first in a suspended state, and by further stirring, a thermosetting resin globule appears. This is recovered, heated to a temperature of 500 ° C. or more in an inert atmosphere, carbonized, and activated by the above-described method to obtain a spherical activated carbon fired by an organic polymer.
- the spherical activated carbon derived from petroleum-based pitch preferably has a diameter of 0.05 to 2 mm, more preferably 0.1 to: Lmm, a specific surface area of 500 to 2000 m 2 Zg, and more preferably 700 to 1500 m 2. Zg, the amount of pores having a pore radius of 100 to 75,000 angstroms is preferably 0.01 to 1 mLZg.
- the spherical activated carbon derived from petroleum pitch can be produced, for example, by the following two methods.
- the first method is described in, for example, Japanese Patent Publication No. 51-76 (US Pat. No. 3,917,806) and Japanese Patent Application Laid-Open No. Sho 54-89010 (US Pat. No. 4,761,284).
- pitches made into small spheres in a molten state are made infusible with oxygen, and then heated and calcined at a temperature of 600 to 1000 ° C in an inert atmosphere, and then carbonized in a steam atmosphere. It is a method of activating at a temperature of 850 to 1000 ° C.
- Japanese Patent Publication No. Sho 59-10930 U.S. Pat. No.
- spherical activated carbon as an active ingredient, (1) spherical activated carbon subjected to ammonia treatment or the like, (2) spherical activated carbon subjected to oxidation and Z or reduction treatment, and the like can be used.
- the spherical activated carbon that can be subjected to these treatments may be any of the above-mentioned spherical activated carbon derived from petroleum pitch, granulated activated carbon of carbonaceous powder, and spherical activated carbon of organic polymer firing.
- the above-mentioned ammonia treatment means, for example, that spherical activated carbon is an aqueous ammonia solution containing 1 to: LOOO ppm of ammonia, and a volume ratio of the aqueous ammonia solution to the spherical activated carbon is 2 to 10 and 10 to 50 ° C. At a temperature of 0.5 to 5 hours.
- Examples of the activated carbon obtained by subjecting the above-mentioned spherical activated carbon derived from petroleum pitch to ammonia treatment include the spherical activated carbon described in JP-A-56-5313 (US Pat. No. 4,761,284).
- spherical activated carbon treated with ammonia has a diameter of 0.05 to 2 mm, preferably 0.1 to: Lmm, a specific surface area of 00 to 2000 m 2 Zg, preferably 700 to 1500 m 2 Zg, and a pore radius of Spherical activated carbon having a void volume of 0.01 to 1 mLZg and ⁇ of 6 to 8 at 100 to 75,000 angstroms can be exemplified.
- the above-mentioned oxidation treatment means performing high-temperature heat treatment in an oxidizing atmosphere containing oxygen.
- oxygen source pure oxygen, oxidized nitrogen, air, or the like can be used.
- reduction treatment means that high-temperature heat treatment is performed in an atmosphere inert to carbon, and the atmosphere inert to carbon is formed using nitrogen, argon, helium, or a mixed gas thereof. can do.
- oxidation of the preferably oxygen content from 0.5 to 25 volume%, more preferably in an atmosphere of oxygen containing Yuryou 3-10 volume 0/0, preferably from 300 to 700. C, more preferably at a temperature of 400-600 ° C.
- the reduction treatment is preferably performed in an inert atmosphere at a temperature of 700 to: L 100 ° C, more preferably 800 to 1000 ° C.
- the spherical activated carbon subjected to oxidation and Z or reduction treatment has a diameter of 0.05 to 2 mm, preferably 0.1 to: Lmm, and a specific surface area of 00 to 2000 m 2 Zg, preferably 700 to 1500 m 2.
- Zg and a spherical activated carbon having a pore radius of 0.01 to 1 mL Zg with a pore radius of 100 to 75,000 angstroms are preferred.
- the spherical activated carbon described in JP-A-2002-308785 has a diameter of 0.01 to 1 mm, a specific surface area of 700 m 2 Zg or more determined by the BET method, and a pore diameter of 20 to 15000 nm. It is a spherical activated carbon having a pore volume of at least 0.04 mLZg and less than 0.10 mLZg, total acidic groups of 0.30 to 1.20 meqZg, and total basic groups of 0.20 to 0.70 meqZg.
- the spherical activated carbon described in JP-A-2002-308785 has a specific range of pore volume.
- the pore volume with a pore diameter of 20 to 15000 nm is not less than 0.04 mLZg and less than 0.10 mLZg.
- a spherical activated carbon having a total basic group of 0.20-1 OOmeq Zg see Japanese Patent Application No. 2002-293906 or Japanese Patent Application No. 2002-293907 can be used.
- the spherical activated carbon described in JP-A-11-292770 has a pore volume with a pore radius of 100 to 75,000 angstroms (that is, a pore volume having a pore diameter of 20 to 15000 nm) of 0.1 to 0.1 l. lmLZg.
- a pore volume with a pore diameter of 20 to 15000 nm is adjusted to not less than 0.04 mLZg and less than 0.10 mLZg, high adsorption characteristics to the toxic substance ⁇ -aminoisobutyric acid can be obtained.
- the adsorption characteristic for ⁇ -amylase which is a beneficial substance
- the pore volume of the spherical activated carbon with a pore diameter of 20 to 15000 nm increases, the absorption of beneficial substances such as digestive enzymes and the like becomes more likely to occur. Smaller is more preferable.
- the pore volume is too small, the amount of toxic substances adsorbed also decreases. Therefore, in the adsorbent for oral administration, the ratio (TZU) of the adsorption amount (T) of the toxic substance to the adsorption amount (U) of the beneficial substance, that is, the selective adsorption rate is important.
- the selective adsorption rate of spherical activated carbon can be evaluated as the ratio (TbZUa) of the adsorption amount (Tb) of DL- ⁇ -aminoisobutyric acid (toxic substance) to the adsorption amount (Ua) of oc amylase (beneficial substance). . That is, the selective adsorption rate is calculated by, for example, the following equation:
- Tb is the adsorption amount of DL- ⁇ -aminoisobutyric acid
- Ua is the adsorption amount of oc amylase
- the spherical activated carbon described in JP-A-2002-308785 has an excellent selective adsorption rate in the range of a pore volume of 20 to 15000 nm having a pore volume of 0.04 mLZg or more and less than 0.10 mLZg. A more excellent selective adsorption rate is exhibited when the pore volume is in the range of 0.05 mLZg or more and less than 0.1 mLZg.
- the spherical activated carbon described in JP-A-2002-308785 has a diameter of 0.01 to 1 mm.
- the diameter is preferably 0.02-0.8 mm.
- the expression “the diameter is Dl to Du” is expressed in a cumulative particle size diagram created according to JIS K 1474 (described later in connection with the method of measuring the average particle size).
- Sieve opening corresponding to the range of Dl to Du means that the passing percentage (%) is 90% or more.
- the spherical activated carbon described in JP-A-2002-308785 has a specific surface area (hereinafter sometimes abbreviated as “SSA”) determined by the BET method of 700 m 2 Zg or more. Spherical activated carbon having an SSA of less than 700 m 2 Zg is not preferred because the toxic substance adsorption performance is reduced. SSA is preferably at least 800 m 2 Zg. The upper limit of SSA is not particularly limited, but from the viewpoint of bulk density and strength, SSA is preferably 2500 m 2 Zg or less.
- the total acidic group in the constitution of the functional group, is 0.31 to 1.20 meqZg and the total basic group is 0.20- It is 0.70meq Zg.
- the spherical activated carbon in which the total acidic group is 0.30 to: L20meqZg and the total basic group does not satisfy the condition of 0.20 to 0.70meqZg has the above-mentioned toxic substance adsorption capacity. Is undesirably low.
- the total acidic group preferably has a force of 0.30 to LOOmeq / g
- the total basic group preferably has a force of 0.30 to 0.60meq / g.
- the composition of the functional groups is as follows: all acidic groups are 0.30 ⁇ : L 20meq / g, total base is 14 units SO.20 ⁇ 0.70meq / g, phenolic '14 hydroxyl group is 0.20 ⁇ 0.70meq / g g and carboxyl group are within 0.15 meqZg or less, and the ratio (aZb) of all acidic groups (a) to all basic groups (b) is 0.40-2.5,
- the relationship [(b + c) -d] between the group (b), the phenolic hydroxyl group (c) and the carboxyl group (d) is preferably 0.60 or more.
- the spherical activated carbon described in JP-A-2002-308785 can be produced, for example, by the following method. Can be manufactured.
- a bicyclic or tricyclic aromatic compound having a boiling point of 200 ° C or higher or an admixture thereof is added to a pitch such as petroleum pitch or coal pitch as an additive, and heated and mixed.
- a pitch such as petroleum pitch or coal pitch as an additive
- the above-mentioned pitch compact is dispersed and granulated in hot water at 70 to 180 ° C. with stirring to form microspheres. Further, the additive having a low solubility in the pitch and a high solubility in the additive is extracted and removed with a solvent having a high solubility in the additive, and the obtained porous pitch is oxidized. Oxidation with an agent results in a porous pitch that is infusible to heat. The infusible porous pitch thus obtained is further treated in a gas stream reactive with carbon (eg, steam or carbon dioxide gas) at a temperature of 800 to: LOOO ° C to obtain a porous carbonaceous material. You can get the quality.
- carbon eg, steam or carbon dioxide gas
- the porous carbonaceous material thus obtained is subsequently subjected to an atmosphere having an oxygen content of 0.1 to 50 vol% (preferably 1 to 30 vol%, particularly preferably 3 to 20 vol%) under an atmosphere of 300 to 800 ° C (rather preferably has three hundred and twenty to six hundred o C) and Sani spoon at a temperature of, further 800 to 1200 o temperature of C (preferably 800 ⁇ 100 0 ° C), under a non-oxidizing gas atmosphere
- an atmosphere having an oxygen content of 0.1 to 50 vol% preferably 1 to 30 vol%, particularly preferably 3 to 20 vol%
- an atmosphere of 300 to 800 ° C (rather preferably has three hundred and twenty to six hundred o C) and Sani spoon at a temperature of, further 800 to 1200 o temperature of C (preferably 800 ⁇ 100 0 ° C)
- a non-oxidizing gas atmosphere By performing a reduction treatment by a heating reaction, spherical activated carbon described in JP-A-2002-308785 can be obtained.
- the atmosphere containing a specific amount of oxygen pure oxygen, oxidized nitrogen, air, or the like can be used as an oxygen source.
- an atmosphere inert to carbon for example, nitrogen, argon, helium, or the like can be used alone, or a mixture thereof can be used.
- the purpose of adding the aromatic compound to the above-mentioned raw material pitch is to lower the softening point of the raw material pitch to improve the fluidity to facilitate the microsphere shading, and to form after the molding.
- the purpose of the present invention is to make the molded body porous by extracting and removing its additives, and to facilitate the structure control and firing of the carbonaceous material by oxidation in a subsequent step.
- an additive for example, naphthalene, methylnaphthalene, phenylnaphthalene, benzylnaphthalene, methylanthracene, phenanthrene, biphenyl, or the like can be used alone, or a mixture of two or more thereof can be used.
- Caro with pitch The amount is preferably in the range of 10 to 50 parts by weight of the aromatic compound per 100 parts by weight of the pitch.
- Mixing of the pitch and the additive is preferably performed in a molten state by heating in order to achieve uniform mixing.
- the mixture of the pitch and the additive is preferably formed into particles having a particle diameter of about 0.01 to Lmm in order to control the particle diameter (diameter) of the obtained porous spherical carbonaceous material.
- the molding may be carried out in a molten state, or may be carried out by a method such as pulverizing the mixture after cooling.
- a solvent for extracting and removing the additive may be, for example, butane, pentane, or the like.
- a mixture mainly composed of an aliphatic hydrocarbon such as xan or heptane, an aliphatic hydrocarbon such as naphtha or kerosene, or an aliphatic alcohol such as methanol, ethanol, propanol or butanol is preferable.
- the additive By extracting the additive from the mixture molded body of pitch and additive with such a solvent, the additive can be removed from the molded body while maintaining the shape of the molded body. At this time, it is presumed that holes for the additive are formed in the molded product, and a pitch molded product having uniform porosity is obtained.
- the size of the through-hole (i.e., pore volume) of the additive is controlled by a conventional method, for example, by controlling the amount of the additive and the precipitation temperature (cooling temperature) of the additive in the step of forming the pitch compact into microspheres. Can be implemented. Also, the pore volume generated by the extraction of additives is affected by the infusibilization conditions. For example, if the infusibilization treatment is strong, the heat shrinkage due to the heat treatment becomes small, and the pores obtained by extracting the additive tend to be easily maintained.
- the porous pitch molded body thus obtained is subjected to an infusibilization treatment, that is, an oxidizing treatment, preferably at a temperature from room temperature to 300 ° C, using an oxidizing agent.
- an infusible porous infusible pitch formed body can be obtained.
- the oxidizing agent used here is, for example, oxygen gas (O 2) or a mixed gas obtained by diluting oxygen gas (O 2) with air or nitrogen.
- Each physical property value of the spherical activated carbon described in JP-A-2002-308785 that is, the average particle diameter, specific surface area, pore volume, total acidic group, and total basic group is determined by the following method. Measure. (1) Average particle size
- the average particle size is determined by drawing a horizontal line on the horizontal axis from the intersection of the vertical line at the 50% point on the horizontal axis and the particle size cumulative line in the cumulative particle size diagram to determine the sieve aperture (mm) at the intersection.
- the average particle diameter is determined by drawing a horizontal line on the horizontal axis from the intersection of the vertical line at the 50% point on the horizontal axis and the particle size cumulative line in the cumulative particle size diagram to determine the sieve aperture (mm) at the intersection. The average particle diameter.
- a sample tube was filled with spherical activated carbon as a sample, and the following operation was performed while flowing helium gas containing 30 vol% of nitrogen into the sample tube to measure the amount of nitrogen adsorbed on the spherical activated carbon sample.
- helium gas containing 30 vol% of nitrogen into the sample tube to measure the amount of nitrogen adsorbed on the spherical activated carbon sample.
- the sample tube is cooled to -196 ° C, and nitrogen is adsorbed on the spherical activated carbon sample.
- return the sample tube to room temperature.
- the amount of nitrogen desorbed from the spherical activated carbon sample is measured with a thermal conductivity detector, and the amount is determined as the amount of adsorbed gas (V).
- V 1 / ( ⁇ ⁇ (1- ⁇ ))
- V is a monolayer on the sample surface
- V is the actually measured amount of adsorption (cm 3 Zg)
- X is the relative pressure
- the pore volume can be measured using a mercury porosimeter (for example, "AUTOPORE 9200" manufactured by MICROMERITICS).
- the pressure (0.07 MPa) force corresponding to a pore diameter of 15 m and the volume of mercury pressed into a spherical activated carbon sample up to the maximum pressure (414 MPa, equivalent to a pore diameter of 3 nm) are measured.
- the surface tension of mercury is defined as “ ⁇ ”, and the contact angle between mercury and the pore wall is determined.
- “0” is set, the following equation is obtained from the balance between the surface tension and the pressure acting on the pore cross section.
- the surface tension of mercury is set to 484 dyne Zcm
- the contact angle between mercury and carbon is set to 130 degrees
- the pressure P is set to MPa
- the pore diameter D is expressed by / zm. . 27 / P
- the pore volume having a pore diameter in the range of 20 to 15000 nm in the present invention corresponds to the volume of mercury injected from a pressure of 0.07 MPa to a pressure of 63.5 MPa.
- 0.05 g of spherical activated carbon sample lg pulverized to 200 mesh or less is added to 50 mL of a specified NaOH solution and shaken for 48 hours.Then, the spherical activated carbon sample is filtered and the NaOH consumption determined by neutralization titration is determined. Quantity.
- the spherical activated carbon which is an active ingredient of the agent for removing a circulatory dysfunction factor of the present invention, further includes spherical activated carbon having a small average particle diameter described in Japanese Patent Application No. 2004-110575, that is, Spherical activated carbon having an average particle size of 50-200 / ⁇ and a specific surface area of 700 m 2 Zg or more determined by the BET method, or in Japanese Patent Application No. 2004-110576.
- Average particle diameter smaller surface modification spherical activated carbon according, i.e., an average particle diameter of from 50 to 2 OO / zm, specific surface area determined by BET method is not less 700 meters 2 Zg above, total acidic groups force SO. 30 meq
- 20 meq / g to 0.9 meq Zg can be used.
- the spherical activated carbon which is an active ingredient of the pharmaceutical preparation of the present invention further includes a spherical activated carbon having a diffraction angle (2 ⁇ ) of 1.4 or more according to an X-ray diffraction method described in WO2004 / 39380. Can be used. Still further, spherical activated carbon using a thermosetting resin described in WO2004 / 39381 as a carbon source can be used.
- the agent for removing a circulatory dysfunction factor of the present invention suppresses an increase in BNP without affecting urine volume and sodium in urine. It has the effect of suppressing an increase in weight and, furthermore, inhibiting myocardial fibrosis.
- circulatory dysfunction is improved by adsorbing humoral factors (i.e., circulatory dysfunction factor) present in the gastrointestinal tract by the spherical activated carbon, and the improvement is manifested as suppression of increase in BNP blood concentration. It is thought that it is done. Therefore, the cardiovascular dysfunction factor remover according to the present invention is effective for improving circulatory dysfunction (especially cardiac dysfunction) without side effects by taking it as an oral drug, for example.
- it is effective for prevention or treatment of heart disease (for example, heart failure or depressive heart failure) and venous thrombosis.
- Spherical activated carbon (preferably, spherical activated carbon having a particle size of 0.01 to 2 mm), which is an active ingredient in the agent for removing a circulatory dysfunction factor of the present invention, may be used alone or as a pharmacological or Subjects in need of treatment or prevention of various diseases caused by poor metabolic bone, together with usual veterinarily acceptable carriers or diluents [animals, preferably mammals (especially humans)] Can be administered in an effective amount.
- the agent for removing a circulatory dysfunction factor of the present invention is preferably administered orally.
- the dosage depends, for example, on the subject (mammal, especially human), age, individual variation, and Z or medical condition.
- the daily dose may be appropriately increased or decreased depending on the power symptoms, which are usually 0.2 to 20 g as spherical activated carbon.
- administration may be performed once or divided into several times.
- the spherical activated carbon may be administered as it is, or may be administered as an activated carbon preparation. When spherical activated carbon is administered as it is, a slurry of spherical activated carbon suspended in drinking water, etc. It is better to administer.
- any dosage form such as granules, tablets, dragees, capsules, sticks, divided packages, or suspensions
- enteric capsules can be used if necessary.
- the content of the spherical activated carbon in the activated carbon preparation is usually 1 to: LOO%.
- a preferred activated carbon preparation is a capsule, a stick, or a divided package. In the case of these preparations, the spherical activated carbon is directly enclosed in a container.
- a porous spherical carbonaceous material was obtained in the same manner as in Example 1 of Patent No. 3522708 (Japanese Patent Application Laid-Open No. 2002-308785).
- porous spherical pitch thus obtained was heated to 235 ° C using a fluidized bed while passing heated air, and then kept at 235 ° C for 1 hour to oxidize and heat.
- an infusible porous spherical silicon oxide pitch was obtained.
- porous spherical oxidized pitch was mixed with nitrogen containing 50 vol% water vapor using a fluidized bed.
- Oxidation treatment was performed for 3 hours and 15 minutes, and then reduction treatment was performed in a fluidized bed under a nitrogen gas atmosphere at 900 ° C for 17 minutes to obtain a porous spherical carbonaceous material.
- the main characteristics of the obtained carbonaceous material are as follows.
- Pore volume 0.08 mL / g
- Dahl salt-sensitive rats and Dahl salt-insensitive rats male, 5 weeks of age; purchased from Japan SLC
- the Dahl salt sensitive group was divided into a salt sensitive group (control group: a total of 10 rats) and a spherical activated charcoal administration group (a total of 10 rats) so that there was no deviation in blood pressure and body weight. divided.
- Dahl salt-sensitive rat is known as a heart failure model animal [Kihara Yasu et al., “Heart” Vol. 27, No. 5, (1995) 450-461].
- Spherical activated carbon administration group and normal group p ⁇ 0.001.
- Figure 1 shows the results of urine volume measurement
- Figure 2 shows the results of urinary sodium excretion
- Figure 3 shows the results of blood pressure measurement.
- FIG. 4 shows the measurement results of the serum BNP concentration. A significant difference was observed between each group. Control group and spherical activated carbon administration group: p ⁇ 0.05;
- Spherical activated carbon administration group and normal group p ⁇ 0.001.
- BNP Brain natriuretic peptide
- the measurement results of the heart weight are shown in FIG. 5, and the measurement results of the left ventricle weight are shown in FIG. Regarding the heart weight ( Figure 5), a significant difference was observed between the groups.
- Control group and spherical activated carbon administration group p ⁇ 0.05;
- Spherical activated carbon administration group and normal group p ⁇ 0.001.
- the left ventricular weight (Fig. 6) was significantly different between the control group and the spherical activated carbon group, and between the control group and the normal group, but was significantly different between the spherical activated carbon group and the normal group. There was no significant difference between the two.
- Control group and spherical activated carbon administration group p ⁇ 0.05;
- FIG. 7 control group
- Fig. 8 sphere activated carbon administration group
- Fig. 9 normal group
- a capsule was prepared by enclosing 200 mg of the spherical activated carbon obtained in Production Example 1 in a gelatin capsule.
- diuretic resistance in a heart failure patient can be improved, and the improvement or the effect can further treat or prevent heart failure.
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- Health & Medical Sciences (AREA)
- Pharmacology & Pharmacy (AREA)
- Engineering & Computer Science (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Animal Behavior & Ethology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- General Chemical & Material Sciences (AREA)
- Epidemiology (AREA)
- Cardiology (AREA)
- Organic Chemistry (AREA)
- Heart & Thoracic Surgery (AREA)
- Inorganic Chemistry (AREA)
- Hospice & Palliative Care (AREA)
- Urology & Nephrology (AREA)
- Vascular Medicine (AREA)
- Diabetes (AREA)
- Hematology (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006514108A JPWO2005117920A1 (ja) | 2004-06-02 | 2005-06-01 | 循環器機能障害因子除去剤 |
CA002568801A CA2568801A1 (en) | 2004-06-02 | 2005-06-01 | Agent for removing circulatory dysfunction factor |
EP05745806A EP1757300A4 (en) | 2004-06-02 | 2005-06-01 | MEANS FOR REMOVING THE FACTOR THAT CAUSES CIRCULATION INTERRUPTED INTERFERENCE |
US11/628,110 US20070231394A1 (en) | 2004-02-06 | 2005-06-01 | Agent for Removing Circulatory Dysfunction Factor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-164572 | 2004-06-02 | ||
JP2004164572 | 2004-06-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005117920A1 true WO2005117920A1 (ja) | 2005-12-15 |
Family
ID=35462726
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/010019 WO2005117920A1 (ja) | 2004-02-06 | 2005-06-01 | 循環器機能障害因子除去剤 |
Country Status (8)
Country | Link |
---|---|
US (1) | US20070231394A1 (ja) |
EP (1) | EP1757300A4 (ja) |
JP (1) | JPWO2005117920A1 (ja) |
CN (1) | CN1964727A (ja) |
CA (1) | CA2568801A1 (ja) |
RU (1) | RU2362570C2 (ja) |
TW (1) | TW200602067A (ja) |
WO (1) | WO2005117920A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006123618A1 (ja) * | 2005-05-16 | 2006-11-23 | Kureha Corporation | 酸化ストレス抑制剤 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5489010A (en) * | 1977-12-27 | 1979-07-14 | Kureha Chem Ind Co Ltd | Spherical activated charcoal antidote |
WO2000053224A2 (en) * | 1999-03-09 | 2000-09-14 | Max-Delbrück-Centrum für Molekulare Medizin | Use of inhibitors of endotoxin for the treatment of heart failure and of cachexia |
JP2002308785A (ja) * | 2001-04-11 | 2002-10-23 | Kureha Chem Ind Co Ltd | 経口投与用吸着剤 |
WO2004039381A1 (ja) * | 2002-11-01 | 2004-05-13 | Kureha Chemical Industry Co., Ltd. | 経口投与用吸着剤、並びに腎疾患治療又は予防剤、及び肝疾患治療又は予防剤 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5673542A (en) * | 1979-11-22 | 1981-06-18 | Kureha Chem Ind Co Ltd | Adsorbent |
JP3338119B2 (ja) * | 1993-04-14 | 2002-10-28 | 呉羽化学工業株式会社 | 抗糖尿病剤 |
DE69527749T2 (de) * | 1994-05-27 | 2003-05-15 | Kureha Kagaku Kogyo K.K., Tokio/Tokyo | Kugelförmige Aktivkohle zur Behandlung von Bauchentzündungen |
JPH11292770A (ja) * | 1998-04-10 | 1999-10-26 | Kureha Chem Ind Co Ltd | マトリックス形成亢進抑制剤 |
CN1263466C (zh) * | 2003-05-06 | 2006-07-12 | 陈小川 | 活性炭输液剂、其制备方法及其在制备治疗癌症药中的应用 |
-
2005
- 2005-06-01 JP JP2006514108A patent/JPWO2005117920A1/ja active Pending
- 2005-06-01 CA CA002568801A patent/CA2568801A1/en not_active Abandoned
- 2005-06-01 EP EP05745806A patent/EP1757300A4/en not_active Withdrawn
- 2005-06-01 WO PCT/JP2005/010019 patent/WO2005117920A1/ja active Application Filing
- 2005-06-01 CN CNA2005800182136A patent/CN1964727A/zh active Pending
- 2005-06-01 TW TW094118014A patent/TW200602067A/zh unknown
- 2005-06-01 RU RU2006146071/15A patent/RU2362570C2/ru not_active IP Right Cessation
- 2005-06-01 US US11/628,110 patent/US20070231394A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5489010A (en) * | 1977-12-27 | 1979-07-14 | Kureha Chem Ind Co Ltd | Spherical activated charcoal antidote |
WO2000053224A2 (en) * | 1999-03-09 | 2000-09-14 | Max-Delbrück-Centrum für Molekulare Medizin | Use of inhibitors of endotoxin for the treatment of heart failure and of cachexia |
JP2002308785A (ja) * | 2001-04-11 | 2002-10-23 | Kureha Chem Ind Co Ltd | 経口投与用吸着剤 |
WO2004039381A1 (ja) * | 2002-11-01 | 2004-05-13 | Kureha Chemical Industry Co., Ltd. | 経口投与用吸着剤、並びに腎疾患治療又は予防剤、及び肝疾患治療又は予防剤 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1757300A4 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006123618A1 (ja) * | 2005-05-16 | 2006-11-23 | Kureha Corporation | 酸化ストレス抑制剤 |
Also Published As
Publication number | Publication date |
---|---|
EP1757300A4 (en) | 2010-08-25 |
TW200602067A (en) | 2006-01-16 |
CN1964727A (zh) | 2007-05-16 |
EP1757300A1 (en) | 2007-02-28 |
RU2362570C2 (ru) | 2009-07-27 |
JPWO2005117920A1 (ja) | 2008-04-03 |
CA2568801A1 (en) | 2005-12-15 |
US20070231394A1 (en) | 2007-10-04 |
RU2006146071A (ru) | 2008-07-20 |
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