US20090023684A1 - Fluid for peritoneal dialysis - Google Patents
Fluid for peritoneal dialysis Download PDFInfo
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- US20090023684A1 US20090023684A1 US11/912,279 US91227906A US2009023684A1 US 20090023684 A1 US20090023684 A1 US 20090023684A1 US 91227906 A US91227906 A US 91227906A US 2009023684 A1 US2009023684 A1 US 2009023684A1
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- Prior art keywords
- fluid
- cnn
- ascorbic acid
- glucoside
- glucose
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/70—Carbohydrates; Sugars; Derivatives thereof
- A61K31/715—Polysaccharides, i.e. having more than five saccharide radicals attached to each other by glycosidic linkages; Derivatives thereof, e.g. ethers, esters
- A61K31/716—Glucans
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/70—Carbohydrates; Sugars; Derivatives thereof
- A61K31/702—Oligosaccharides, i.e. having three to five saccharide radicals attached to each other by glycosidic linkages
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/70—Carbohydrates; Sugars; Derivatives thereof
- A61K31/7042—Compounds having saccharide radicals and heterocyclic rings
- A61K31/7048—Compounds having saccharide radicals and heterocyclic rings having oxygen as a ring hetero atom, e.g. leucoglucosan, hesperidin, erythromycin, nystatin, digitoxin or digoxin
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
- A61M1/28—Peritoneal dialysis ; Other peritoneal treatment, e.g. oxygenation
- A61M1/287—Dialysates therefor
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P13/00—Drugs for disorders of the urinary system
- A61P13/12—Drugs for disorders of the urinary system of the kidneys
-
- 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
- A61P7/08—Plasma substitutes; Perfusion solutions; Dialytics or haemodialytics; Drugs for electrolytic or acid-base disorders, e.g. hypovolemic shock
Definitions
- the present invention relates to a fluid for peritoneal dialysis (i.e. peritoneal dialysis fluid; hereinafter abbreviated as “DF”) that is applicable to a renal failure patient, particularly, a DF with an improved biocompatibility comprising one or more saccharides selected from the group consisting of cyclonigerosylnigerose, cyclomaltosylmaltose and L-ascorbic acid 2-glucoside.
- a fluid for peritoneal dialysis i.e. peritoneal dialysis fluid
- DF peritoneal dialysis fluid
- a DF with an improved biocompatibility comprising one or more saccharides selected from the group consisting of cyclonigerosylnigerose, cyclomaltosylmaltose and L-ascorbic acid 2-glucoside.
- Peritoneal dialysis is a therapy of removing or exchanging waste matters or body fluid in a peritoneal capillary vessel of a patient using a dialysis fluid injected into the peritoneal cavity, which is an important therapy for life-sustaining of a renal failure patient. Since the peritoneal dialysis does not always require huge apparatuses or facilities and many assists by doctors and nurses compared to hemodialysis that is another common therapy, it is widely accepted by patients who want rehabilitation or who have difficulty in going to medical care facilities because of their remote locations.
- peritoneal dialysis therapy has some following defects.
- most commercially available DFs contain glucose as an osmo-regulator, which leads to various problems. For example, glucose absorption into the patient body may result in elevated blood-sugar level, lipid metabolism abnormality and insufficient body fluid removal by peritoneal sclerosis.
- Current DFs need to be regulated in an acidic condition to keep glucose stable at autoclaving, but acidifying fluids repetitively injected into the peritoneal cavity is unfavorable for the peritoneal cavity or the peritoneal mesothelial cells.
- oligosaccharides, polysaccharides, amino acids, and glucose polymers i.e. starch hydrolyzates are quoted (for example, q.v. Japanese Patent Kokai No. 94598/1998 and Japanese Patent Kokai No. 85701/1996). But these are not yet in practical use because the above osmo-regulators cost a lot, their biosafety for longtime use is not known and they are easily decomposed.
- methods of using an osmo-regulator containing an amino sugar or L-ascorbic acid is proposed (for example, q.v. Japanese Patent Kokai No. 71273/1999), but these compounds may lead to a problem of storage stability such as decomposition at autoclaving or brown matter production by the reaction with other ingredients. Therefore, development of a DF containing more beneficial osmo-regulator is desired.
- An object of the present invention is to provide a DF having improved body-fluid removability, biocompatibility and storage stability.
- a DF having improved body-fluid removability, biocompatibility and storage stability can be prepared by using one or more saccharides selected from the group consisting of cyclonigerosylnigerose, cyclomaltosylmaltose and L-ascorbic acid 2-glucoside as an osmo-regulator in the DF comprising electrolytes and osmo-regulators as the main ingredients.
- the present invention can provide a DF having improved body-fluid removability, biocompatibility and storage stability, which brings the increased body fluid removal and elongated body fluid removing time. Since the decomposition of the ingredients such as glucose and the production of brown matters are inhibited by using the above saccharides, a DF having lowly biological injurious matter and improved storage stability can be obtained. Further, a DF with low damage to biological membranes and peritoneal mesothelial cells is obtained by using the above saccharides. Since glucose is not essential ingredient in the DF of the present invention and its amount can be determined accordingly, the DF can be used to a patient suffered from diseases such as diabetes.
- Cyclonigerosylnigerose used in the present invention is a cyclic tetrasaccharide having a structure of cyclo ⁇ 6′- ⁇ -D-glucopyranosyl-(1 ⁇ 4)- ⁇ -D-glucopyranosyl-(1 ⁇ 6)- ⁇ -D-glucopyranosyl-(1 ⁇ 4)- ⁇ -D-glucopyranosyl-(1 ⁇ ) (throughout the specification, referred to as “cyclonigerosylnigerose”, occasionally abbreviated as “CNN”), which was disclosed in International Patent application No. WO 02/10361 applied for by the same applicant of the present invention.
- Cyclomaltosylmaltose used in the present invention is a cyclic tetrasaccharide having a structure of cyclo ⁇ 6′- ⁇ -D-glucopyranosyl-(1 ⁇ 4)- ⁇ -D-glucopyranosyl-(1 ⁇ 6)- ⁇ -D-glucopyranosyl-(1 ⁇ 4)- ⁇ -D-glucopyranosyl-(1 ⁇ (throughout the specification, referred to as “cyclomaltosylmaltose”, occasionally abbreviated as “CMM”), which was disclosed in Japanese Patent Kokai 95148/2005 applied for by the same applicant of the present invention.
- CCMM cyclomaltosylmaltose
- cyclotetrasaccharide The cyclotetrasaccharides can be prepared by various methods such as fermentation, enzymatic synthesis or chemical synthesis. Considering economic efficiency, a method comprising a step of allowing cyclotetrasaccharide-forming enzyme to act on partial starch hydrolyzate is preferable, for example, disclosed in the above patent documents. By these methods, cyclotetrasaccharides can be made from starch that is a low-cost material in a high yield.
- the cyclotetrasaccharide of the present invention need not be highly purified and any form is acceptable, such as a composition containing other saccharides or cyclotetrasaccharide derivatives formed in the preparation process, its partially purified product, its highly purified product or a composition containing sugar alcohols produced by hydrogenation of reducing sugar formed in the preparation process.
- cyclotetrasaccharide with a purity of 98 w/w % or higher is preferred, a purity of 99 w/w % or higher is more preferable.
- the sterilized or pyrogen-free product is preferable.
- L-ascorbic acid 2-glucoside used in the present invention can be prepared by various methods such as fermentation, enzymatic synthesis or chemical synthesis. Considering economic efficiency, a method comprising a step of allowing a glucosyltransferase to act on a mixture of L-ascorbic acid and partial starchhydrolyzate, for example, disclosed in Japanese Patent Kokai No. 135992/1991 applied for by the same applicant of the present invention. By this method, L-ascorbic acid 2-glucoside can be made from partial starch hydrolyzate that is a low-cost material and L-ascorbic acid in a high yield.
- A2G an L-ascorbic acid 2-glucoside product commercialized by Hayashibara Biochemical Laboratories Inc., Okayama, Japan
- the purity of L-ascorbic acid-2-glucoside used in the present invention is not restricted as long as the effect of the DF of the present invention is obtained, but for the administration into the peritoneal cavity, L-ascorbic acid-2-glucoside with a purity of 98 w/w % or higher is preferred, a purity of 99 w/w % or higher is more preferable.
- the sterilized or pyrogen-free product is preferable.
- the present invention relates to a DF containing one or more saccharides selected from the group consisting of CNN, CMM and L-ascorbic acid 2-glucoside as an osmo-regulator, which can regulate the osmotic pressure with the above ingredients at a low cost.
- the effect or time of body fluid removal can be altered or controlled by change of the kinds or the amounts of added osmo-regulators.
- the osmotic pressure of the DF of the present invention is not restricted as long as the DF can remove the body fluid without serious biological disturbance.
- the amount and mixing ratio of one or more saccharides selected from the group consisting of CNN, CMM and L-ascorbic acid 2-glucoside, electrolyte and other ingredients are altered to adjust the osmotic pressure in a range of 282 to 820 mOsm/L, preferably in a range of 282 to 400 mOsm/L.
- the DF of the present invention is preferable to be adjusted in pH 3 to 9, preferably in pH 5.0 to 7.5.
- a physiologically applicable buffer such as sodium lactate and sodium bicarbonate, is usable as the relevant buffer.
- the DF of the present invention can be prepared by dissolving one or more saccharides selected from the group consisting of CNN, CMM and L-ascorbic acid 2-glucoside in water as an osmo-regulator and other physiologically acceptable ingredients that can be contained in the DF.
- the DF of the present invention also can be prepared by dissolving one or more saccharides selected from the group consisting of CNN, CMM and L-ascorbic acid 2-glucoside in an existing DF or replacing the partial or whole osmo-regulator in an current DF by one or more saccharides selected from the group consisting of CNN, CMM and L-ascorbic acid 2-glucoside.
- the additive amount of cyclotetrasaccharide and/or L-ascorbic acid 2-glucoside to the DF is determined as the osmotic pressure of the DF also containing electrolytes (inorganic salts) and other ingredients is regulated in the range described above. Usually, they are used in a range of 0.1% (w/v) to 35% (w/v), more preferably in a range of 0.5% (w/v) to 25% (w/v), on a dry solid basis (throughout the specification, “% (w/v)” is described as “%”).
- the DF of the present invention can be added with one or more members selected from the group consisting of various electrolytes, saccharides such as glucose, fructose, lactose, sucrose, ⁇ , ⁇ -trehalose, ⁇ , ⁇ -trehalose, ⁇ , ⁇ -trehalose, lactosucrose, maltooligosaccharides, cyclodextrins, syrups, maltodextrins, sugar alcohols such as mannitol, sorbitol, xylitol, maltotriitol, aminosugars such as glucosamine, acetyl glucosamine, galactosamine, non-reducing oligosaccharides or polysaccharides such as hydrogenated maltooligosaccharides and dextrins having ⁇ , ⁇ -trehalose structure within the group consisting of various electrolytes, saccharides such as glucose, fructose, lactose, sucrose, ⁇ , ⁇ -trehalose
- the additive amount of the above electrolytes is determined as the ionic concentration is regulated close to that of a human body fluid.
- various electrolytes are admixed to give ionic concentrations of 120 mEq to 150 mEq of sodium ion, 0 mEq to 10 mEq of potassium ion, 3 mEq to 5 mEq of calcium ion, 0 mEq to 3 mEq of magnesium ion, 100 mEq to 120 mEq of chloride ion and 025 mEq to 40 mEq of bicarbonate ion.
- Phosphate ion or minor elements such as copper, zinc and lead can be added in addition to the above ions.
- the DF of the present invention can be advantageously added with one or more members selected from the group consisting of medicines such as antiinflammatory agent, antibacterial agent, antitumor agent, diuretic, antipyretic, analgesic, immunostimulator, cell cellstimulator, physiologically active substance, antioxidant, organic acids such as lactic acid, citric acid, glucronic acid, emulsifying agent, Vitamin P family such as lutin, hesperidin, naringin, Vitamins and its analogues such as Vitamin B 1 , Vitamin B 2 , Vitamin B 6 , Vitamin B 12 , L-ascorbic acid, Vitamin E and their derivatives, amino acids including amino derivatives of amino acid or N-acetyl amino acid, CoQ10 (coenzymeQ10), ⁇ -lipoicacid, L-carnitinne, based such as adenosine and its monophosphate, diphosphate and triphosphate.
- medicines such as antiinflammatory agent, antibacterial agent, antitumor agent, diuretic
- the DF of the present invention can be prepared by incorporating the ingredients in a process of material input to end product or in an existing DF by a combinational method of one or more processes selected from the group consisting of dilute, concentration, drying, filtration, centrifugation, mixing, kneading, dissolution, melting, dispersion, suspension, emulsifying, immersion, permeation, spraying, inspersion, application, coating, solidification and grinding.
- the DF prepared by the above method is preferable to be packed into a bag made of flexible plastic such as poly(vinyl chloride) or ethylene-vinyl acetate or a glass vessel, and if necessary, sterilized by autoclaving, boiling or filtration.
- the DF can be prepared into two or more components and prepared by mixing them when used. Preparation of the DF by diluting the powdery products comprising the ingredients of the DF or its concentrated solution with water is feasible.
- the DF of the present invention is applicable to a well-established peritoneal dialysis therapy without restriction.
- the dosage of the DF can be determined according to the condition of the subject patient, the purpose of the therapy or the degree of the loss of renal function without restriction.
- the DF is injected into the peritoneal cavity at a dose of 1 L to 2 L one or a few times a day and removed after a prescribed time to exchange and remove the accumulated body fluid and waste matters. It can be operated through a catheter indwelling in the peritoneal cavity by gravitation or with a pump by the patient or the carer at the patient's home, office, or while traveling.
- the DF of the present invention can be used as a dialysate for hemodialysis, organ preservation fluid or wash fluid for peritoneal cavity, pleural cavity or organs.
- the DF is advantageous to biocompatibility.
- DFs comprising powdery crystalline CNN pentahydrate, powdery crystalline CMM pentahydrate, or L-ascorbic acid 2-glucoside (reagent grade, commercialized by Hayashibara Biochemical Laboratories Inc., Okayama, Japan) were prepared. These DFs were respectively placed in glass bottles, tightly sealed, and sterilized at 121° C. for 40 minutes. Successively, the browning of DFs and the formation of 5-hydroxymethyl-furfural were judged by macroscopically and the increase of absorbance at 284 nm. The results were also shown in Table 1. A DF comprising glucose, shown in Table 1, was used as a control.
- DFs comprising glucose or CNN are prepared, respectively.
- a dialysis tube (Molecular weight cut off: 15,000 daltons; diameter: 16 mm; length: 70 mm)
- a dialyzing solution prepared by admixed sodium chloride and dextran (Molecular weight: 60,000 to 90,000 daltons; commercialized by Wako Pure Chemical Industries Ltd., Osaka, Japan) with purified water to give concentrations of 9 g/L and 6 g/L, respectively, for dialysis.
- the fluid volumes in the dialysis tube at one to 14 hours after the start of dialysis were examined by measuring the weight of the tube.
- three dialysis tubes were used for a kind of DF.
- the changes of fluid volumes in the dialysis tubes were measured by calculating the average of the results of three tubes expressed as relative values using each fluid volume at the start of dialysis as 100. The results were shown in Table 3.
- a DF comprising 7.5% (w/v) of CNN (DF3), showing a lower osmotic pressure than a DF comprising 3.86% (w/v) of glucose (Control 2), and a DF comprising 15% (w/v) of CNN (DF4), showing almost equal osmotic pressure with Control 2, showed the higher increase percentage of the fluid volume in dialysis tubes than the case of Control 2.
- the results indicate that CNN exhibits better body fluid removability than glucose.
- CMM prepared by the method of “Preferred example 2 of preparation” described later, for the similar experiment instead of CNN in Table 2, almost the same results were obtained. Therefore, the results of the cases of using CNN are shown in Table 2 and those of the cases of using CMM are omitted.
- DFs comprising 7.5% (w/v) of CNN (DF1), 7.5% (w/v) of CMM (DF2), or 6.7% (w/v) of L-ascorbic acid 2-glucoside (DF3) were prepared, respectively.
- glucose was dissolved into the same electrolyte solution to give a concentration of 3.86%, on a dry solid basis, to make into a DF (Control).
- each of DFs was administrated to peritoneal cavity of CD (SD) IGF rat (age in 7 to 8 weeks, male, weight: 256 to 317 grams, commercialized by Charles River Laboratories Japan, Inc., Kanagawa, Japan), pre-fasted for four hours and anesthetized by ether, using a 10 ml-capacity injection syringe with a 21-gauge needle. Rats were killed with anesthesia using ether after the administration of 2, 4, 6, or 14 hours. Then, the trapped fluid in the peritoneal cavity was collected using a 10 ml-capacity injection syringe with a 19-gauge needle, and the volume of the fluid was measured.
- SD CD
- IGF rat age in 7 to 8 weeks, male, weight: 256 to 317 grams, commercialized by Charles River Laboratories Japan, Inc., Kanagawa, Japan
- Rats were killed with anesthesia using ether after the administration of 2, 4, 6, or 14 hours.
- the increase of fluid volume was expressed as relative values using the fluid volume of Control, collected just after the administration, as 100, and were in Table 4. In the experiment, three rats were used at each measuring time. The average volume of DFs collected just after the administration in the peritoneal cavity was 9.4 milliliters.
- a corn starch was prepared into a about 20% (w/v) starch suspension, admixed with calcium carbonate to give a concentration of 0.1% (w/v), adjusted to pH 6.5, and admixed with 0.3%/g-starch of “THERMAMYL 60L” (an ⁇ -amylase commercialized by Novozymes Japan, Chiba, Japan) and then incubated at 95° C. for 15 min. After autoclaving at 120° C. for 20 min, the reaction mixture was cooled rapidly to about 35° C. to make into a liquefied starch solution with a DE (dextrose equivalent) of about 4.
- the liquefied starch solution was admixed with 0.2 ml/g-dry solid starch of an enzyme solution containing ⁇ -isomaltosylglucosaccharide-forming enzyme and ⁇ -isomaltosyl-transferring enzyme, originated from Bacillus globisporus C9, FERM BP-7143, disclosed in International Patent application No. WO 02/103611, and 10 units/g-dry solid starch of cyclomaltodextrin glucanotransferase (commercialized by Hayashibara Biochemical Laboratories Inc., Okayama, Japan) and followed by the enzymatic reaction at pH 6.0 and 35° C. for 48 hours. After heating to 95° C.
- reaction mixture was cooled to about 50° C. and adjusted to pH5.0. Then, the reaction mixture was admixed with 300 units/g-starch of “TRANSGLUCOSIDASEL (AMANO)” (an ⁇ -glucosidase commercialized by Amano Enzyme Inc., Aichi, Japan) and followed by the enzyme reaction for 24 hours. Further, the resulting reaction mixture was admixed with 30 units/g-starch of “GLUCOZYME” (a glucoamylase commercialized by Nagase ChemteX Corporation, Osaka, Japan) and followed by the enzyme reaction for 17 hours. After heating the reaction mixture to 95° C. and keeping for 30 min, it was cooled and filtrated.
- TRANSGLUCOSIDASEL AMANO
- GLUCOZYME a glucoamylase commercialized by Nagase ChemteX Corporation, Osaka, Japan
- the resulting filtrate was decolored with activated charcoal, desalted and purified with ion exchangers in H- and OH-forms. Then, the purified solution was concentrated to give a syrup comprising CNN, with a concentration of 60%.
- the product contained, on a dry solid basis, 34.2% (w/w) of glucose, 62.7% (w/w) of CNN, and 3.1% (w/w) of other saccharides.
- the syrup comprising CNN was subjected to a column chromatography using “AMBERLITE CR-1310” (Na-form), a strongly acidic cation-exchange resin (commercialized by Organo Corporation, Tokyo, Japan).
- the resin was packed into four jacketed stainless steel columns having a diameter of 5.4 cm, which were then cascaded in series to give a total gel bed depth of 20 m (gel bed depth of each column was 5 m).
- the saccharide solution was fed to the columns in a volume of 5% (v/v) and fractionated by feeding to the columns hot water heated to 60° C. at an SV (space velocity) of 0.13 to obtain high CNN content fractions.
- a DF prepared using the product can be used to control the change of osmotic pressure in a small range. Therefore, the product can be advantageously used as an osmo-regulator.
- the culture supernatant was obtained by centrifuging at 8,000 rpm for 20 minutes the culture broth to remove cells.
- the resulting culture supernatant was used as an enzyme preparation and admixed with 50 mM acetate buffer containing 2% (w/v) of soluble starch and 2 mM of calcium chloride and followed by the reaction at 40° C. for 24 hours. The reaction was stopped by heating at about 100° C. for 10 minutes.
- the above reaction mixture was adjusted to pH 5.0 using hydrochloric acid, then admixed with 4,000 units/g-dry solid of “TRANSGLUCOSIDASE-LAMANO” (an ⁇ -glucosidase commercialized Amano Enzyme Inc., Aichi, Japan) and 250 units/g-dry solid of glucoamylase (commercialized by Nagase ChemteX Corporation, Osaka, Japan) and followed by the reaction at 50° C. for 16 hours. After completion of the reaction, the reaction was stopped by heating at about 100° C. for 10 min. Then, the pH of the reaction mixture was adjusted to 12 by adding sodium hydroxide, and the resulting mixture was incubated at 98° C.
- “TRANSGLUCOSIDASE-LAMANO” an ⁇ -glucosidase commercialized Amano Enzyme Inc., Aichi, Japan
- glucoamylase commercialized by Nagase ChemteX Corporation, Osaka, Japan
- DIAION SK-1B an ion exchange resin commercialized by Mitsubishi Chemical Corporation, Tokyo, Japan
- IRA 411 an anion exchange resin commercialized by organo Corporation, Tokyo, Japan
- the resulting solution was filtrated, concentrated using an evaporator, and dried in vacuo to obtain a powdery crystalline CMM pentahydrate with a purity of 98% or higher.
- the product is not hydrolyzed by enzymes in peritoneal cavity when used as an osmo-regulator for DF.
- a DF prepared using the product can be used to control the change of osmotic pressure in a small range. Therefore, the product can be advantageously used as an osmo-regulator.
- the product is a DF with improved storage stability and biocompatibility.
- the product can be also used as a dialysate for hemodialysis.
- the above-identified sodium lactate can be replaced with other buffer agent (sodium bicarbonate, etc.).
- distilled water were dissolved 9.5 g of powdery crystalline CNN pentahydrate, prepared by the method in Preferred example 2, 0.1 g of glucose, 0.567 g of sodium chloride, 3.92 g of sodium lactate, 0.294 g of calcium chloride, and 0.103 g of magnesium chloride, and the solution was adjusted to a pH of about 7.5 with 0.294 g of sodium hydroxide and volume up to 1,000 ml with distilled water.
- the resulting solution was filtered with a 0.2 ⁇ m membrane filter, injected into a PVC bag, and autoclaved at 121° C. for 20 min.
- the product is a DF with improved storage stability and biocompatibility.
- the product can be also used as a dialysate for hemodialysis and a preservation fluid or a washing fluid for organs.
- the above-identified sodium lactate can be replaced with other buffer agent (sodium bicarbonate, etc.).
- the product is a DF with improved storage stability and biocompatibility.
- the product can be also used as a dialysate for hemodialysis.
- the product is a DF with improved storage stability and biocompatibility.
- the product can be also used as a dialysate for hemodialysis.
- the above-identified sodium lactate can be replaced with other buffer agent (sodium bicarbonate, etc.)
- the present invention was made based on a complete self-finding that a DF containing one or more saccharides selected from CNN, CMM, and L-ascorbic acid 2-glucoside has distinct functions of satisfactory body fluid removability, high biocompatibility, and improved storage stability.
- the DF of the present invention can be used easily and comfortably as one for humans without fear of causing serious side effect.
- the present invention with such outstanding distinct functions and effects is a significant invention that will greatly contribute to this art.
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PCT/JP2006/307813 WO2006115067A1 (ja) | 2005-04-20 | 2006-04-13 | 腹膜透析液 |
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EP (1) | EP1878430B1 (ja) |
JP (2) | JPWO2006115067A1 (ja) |
KR (1) | KR101338766B1 (ja) |
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JP2011256111A (ja) * | 2008-10-03 | 2011-12-22 | Hayashibara Biochem Lab Inc | 敗血症の予防及び治療剤 |
JP2010150240A (ja) * | 2008-11-20 | 2010-07-08 | Oppen Keshohin Kk | ニゲロオリゴ糖を有効成分とする皮膚外用剤、抗炎症剤、美白剤および化粧料 |
CN101890041B (zh) * | 2010-02-10 | 2012-07-25 | 上海蓝怡科技有限公司 | 腹膜透析液及其制备方法 |
CA2830085A1 (en) | 2011-03-23 | 2012-09-27 | Nxstage Medical, Inc. | Peritoneal dialysis systems, devices, and methods |
US9861733B2 (en) | 2012-03-23 | 2018-01-09 | Nxstage Medical Inc. | Peritoneal dialysis systems, devices, and methods |
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Also Published As
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CN101257908A (zh) | 2008-09-03 |
US20140148409A1 (en) | 2014-05-29 |
EP1878430A1 (en) | 2008-01-16 |
CN101257908B (zh) | 2010-09-08 |
JP5507609B2 (ja) | 2014-05-28 |
JP2012140468A (ja) | 2012-07-26 |
EP1878430A4 (en) | 2010-09-29 |
EP1878430B1 (en) | 2016-04-13 |
WO2006115067A1 (ja) | 2006-11-02 |
KR20080008358A (ko) | 2008-01-23 |
US9066968B2 (en) | 2015-06-30 |
KR101338766B1 (ko) | 2013-12-06 |
JPWO2006115067A1 (ja) | 2008-12-18 |
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