CN100569226C - A kind of long-cycled lipid emulsion profofol preparation - Google Patents
A kind of long-cycled lipid emulsion profofol preparation Download PDFInfo
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- CN100569226C CN100569226C CNB2007100176850A CN200710017685A CN100569226C CN 100569226 C CN100569226 C CN 100569226C CN B2007100176850 A CNB2007100176850 A CN B2007100176850A CN 200710017685 A CN200710017685 A CN 200710017685A CN 100569226 C CN100569226 C CN 100569226C
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Abstract
The present invention relates to a kind of long-cycled lipid emulsion profofol preparation and preparation thereof, the raw material that makes the said preparation active component is: the fat-soluble derivant of (1) propofol or propofol, (2) as the vegetable oil of drug solvent, (3) as the lecithin of Emulsion surfactant, (4) as the emulsion preparations stabilizing agent, emulsifying agent, increase the Polyethylene Glycol phospholipid derivative of fat milk half-life in blood, (5) as the emulsion preparations stabilizing agent, the oleic acid of emulsifying agent or oleate, (6) as the vitamin E of antioxidant, (7) as the complex of controlling metal ion, the introducing of the present invention by the Polyethylene Glycol phospholipid derivative solved common fats breast poor stability to the modification on fat milk surface, easily from body-internal-circulation by liver, the shortcoming that splenic macrophage is removed rapidly, fat milk is kept the long period in blood, increased the passive target function of medicine.Improve the stability of fat emulsion formulation, strengthened the anesthetic action of propofol.
Description
Technical field
The present invention relates to a kind of carrying medicine, particularly a kind of long-cycled lipid emulsion profofol preparation.
Background technology
Propofol (propofol) is a kind of novel intravenous anesthetic, is mainly used in that general anesthesia is induced and anesthesia is kept.Also be widely used in the short and small operation of outpatient service in recent years, nonpain treatments such as the gastrointestinal mirror is looked into, artificial abortion, its advantage be quick, fugitive, revive rapidly and fully, continue behind the infusion characteristics such as no cumulative action.Propofol is water insoluble, so the preparation formulation of Shi Yonging has fat milk, cyclodextrin and soluble derivative clinically.The propofol fat emulsion formulation is that propofol is dissolved in the vegetable oil (main component is a fatty acid triglycercide), is emulsifying agent with phospholipid, adds stable oil-in-water type (O/W) Emulsion that isotonic agent and water for injection are made, but injection for intravenous.The security performance of phospholipid lipid emulsion profofol is good, and is non-stimulated, is that one of main medication of keeping is induced and anaesthetized to widely used general anesthesia in the clinical treatment.But the poor stability of fat milk, the half-life in blood is short.
Polyethylene Glycol (polyethylene glycol) is a kind of macromolecular material that is formed by epoxyethane ring-expansion polymerization, have high-hydrophilic, flexibility, nontoxic and excellent biological compatibility, with polyethyleneglycol modified medicine or pharmaceutical carrier slow down intravenous drug in vivo removing and increase and obvious effect arranged aspect blood medicine half-life of medicine.Polyethylene Glycol can form disordered structure at medical surfaces, forms Polyethylene Glycol hydration insulating space, produces biological barrier, therefore can hinder histiocyte near medical surfaces, thereby suppresses the removing of medicine.
Summary of the invention
The objective of the invention is to, a kind of long-cycled lipid emulsion profofol preparation is provided, this long-cycled lipid emulsion profofol preparation has solved common fats breast poor stability by Polyethylene Glycol to the modification on fat milk surface, the easy shortcoming of from body-internal-circulation, being removed rapidly by liver, splenic macrophage, fat milk is kept the long period in blood, increased the passive target function of medicine.
In order to realize above-mentioned task, the present invention takes following technical solution:
A kind of long-cycled lipid emulsion profofol preparation is characterized in that, makes said preparation and is made up of the raw material and the percentage by weight of following active component:
The fat-soluble derivant of propofol or propofol: 0.05%～10%;
Vegetable oil as drug solvent: 5%～30%;
Lecithin as the Emulsion surfactant: 0.3%～2%;
As emulsion preparations stabilizing agent, emulsifying agent, the increase fat milk Polyethylene Glycol phospholipid derivative of half-life in blood: 0.02%～8%;
Oleic acid or oleate as emulsion preparations stabilizing agent, emulsifying agent: 0～0.6%;
Vitamin E as antioxidant: 0～1%;
Complex as the control cation concn: 0～0.4%;
Surplus is a distilled water, and the percentage by weight sum of above-mentioned raw materials is 100%.
The present invention can effectively increase the stability of fat milk with polyethyleneglycol modified fat milk surface, slowed down the breakdown of emulsion that the dilution of injection back causes, reduce pharmaceutical preparation and do not reached the toxic and side effects that the preceding drug release of target spot causes, Polyethylene Glycol can form isolation barrier on the emulsion droplet surface of lipid emulsion profofol simultaneously, suppress the removing of drug disposition, improved the blood medicine half-life of medicine.This polyethyleneglycol modified long-circulation fat fat breast that forms had both played slow release and macrocyclic effect, had reduced side effect again, can also improve the therapeutic effect of medicine.
The specific embodiment
According to technical scheme of the present invention, raw material and the percentage by weight of forming the active component of long-cycled lipid emulsion profofol preparation are:
The fat-soluble derivant of propofol or propofol: 0.05%～10%;
Vegetable oil as drug solvent: 5%～30%;
Lecithin as the Emulsion surfactant: 0.3%～2%;
As emulsion preparations stabilizing agent, emulsifying agent, the increase fat milk Polyethylene Glycol phospholipid derivative of half-life in blood: 0.02%～8%;
Oleic acid or oleate as emulsion preparations stabilizing agent, emulsifying agent: 0～0.6%;
Vitamin E as antioxidant: 0～1%;
Complex as the control cation concn: 0～0.4%;
Surplus is a distilled water, and the percentage by weight sum of above-mentioned raw materials is 100%.
The vegetable oil of said drug solvent is a kind of of soybean oil, Petiolus Trachycarpi oil, Oleum Helianthi, SEMEN COICIS oil, Semen Maydis oil or other known plants oil.
Said lecithin as the Emulsion surfactant is a kind of of Ovum Gallus domesticus Flavus lecithin, soybean lecithin, hydrogenated yolk lecithin, hydrogenated soy phosphatidyl choline or synthetic lecithin.
Said is a kind of of Polyethylene Glycol-cephalin derivant, Polyethylene Glycol-cholesterol derivative, Polyethylene Glycol-two-fatty acid glycerine ester derivant, Polyethylene Glycol-aliphatic ester derivatives, Polyethylene Glycol-aliphatic amine derivative or Polyethylene Glycol-fatty alcohol derivative as emulsion preparations stabilizing agent, emulsifying agent, the increase fat milk Polyethylene Glycol phospholipid derivative of half-life in blood.
Said chain length as emulsion preparations stabilizing agent, emulsifying agent, the increase fat milk polyethylene glycol polymer of the Polyethylene Glycol phospholipid derivative of half-life in blood is the length between 700～5000, or the different proportion mixture of the polyethyleneglycol derivative of different length.
The oleic acid of said emulsion preparations stabilizing agent, emulsifying agent or oleate are oleic acid, oleic acid potassium salt or Oleic acid sodium salt.
Said complex as the control metal ion is EDTA or other cation complexing agents.
Below be the preparation of product production example that the inventor provides, these embodiment all are some more excellent examples, the invention is not restricted to these embodiment.
The present invention verifies the long-cycled lipid emulsion profofol preparation amount ranges of listed medicine in prescription of filling a prescription.Under technology of the present invention and condition, when long-circulation fat fat breast prescription is constant except the composition that plays emulsifying and Stabilization and consumption are maintained fixed, the arbitrary consumption of consumption in 0.1%～20% weight ratio scope of main medicine propofol and propofol derivative all guarantees to make stable final pharmaceutical preparation product.Though content of medicines also can made stable fat emulsion formulation below 0.05% in principle, its drug level does not reach effective medicinal concentration, has not had clinical meaning, so do not investigated in an embodiment.The in like manner main concentration of medicine more than 10% is too high, is difficult to the degree of accuracy of control administration in the clinical use, can bring danger to the patient, and the present invention also will not adopt, and does not investigate at this.
One, the long-cycled lipid emulsion profofol preparation of different propofol content prepares embodiment (only be example with the propofol, the experimental result of other propofol derivatives substantially roughly the same).
Example 1: the preparation (0.05% propofol) of low content propofol long-circulation fat fat breast
Prescription:
| Propofol | 0.5g |
| Soybean oil (injection) | 99.5g |
| Lecithin (injection) | 10.0g |
| Enuatrol | 0.4g |
| Polyethylene Glycol-phospholipid | 3.0g |
| Vitamin E (injection) | 10ml |
| Glycerol | 22g |
| Water for injection | Add to 1000ml |
Get soybean oil 99.5g; add 10.0g lecithin, 0.4g enuatrol, 3.0g Polyethylene Glycol-phospholipid (PEG-DSPE); under the condition of nitrogen protection; be heated to 75 ℃; stir about 10min makes the various lipids that add fully dissolve; add 0.5g propofol and 10ml vitamin E then, the dissolving mixing.Other gets water for injection 800ml, adds glycerol 22g.Under the condition of nitrogen protection, the oil solution that contains propofol adds in the glycerine water solution under the shear agitation condition, makes colostrum, and regulates total amount to 1000ml.High pressure homogenizer homogenizing 5-8 time, homogenization pressure is approximately 100MPa, to particle size range at 150nm～300nm, regulate pH 7.0-8.0, filter, packing feeds nitrogen, sealing.115 ℃ of rotation sterilization 30min, after lamp inspection was qualified, packing was in storage below 25 ℃.
Example 2: the preparation (10% propofol) of high-load propofol long-circulation fat fat breast
Prescription:
| Propofol | 10.0g |
| Soybean oil (injection) | 90.0g |
| Lecithin (injection) | 10.0g |
| Enuatrol | 0.4g |
| Polyethylene Glycol-phospholipid | 3.0g |
| Vitamin E (injection) | 10ml |
| Glycerol | 22g |
| Water for injection | Add to 1000ml |
Get soybean oil 90g; add 10.0g lecithin, 0.4g enuatrol, 3.0g Polyethylene Glycol-phospholipid (PEG-DSPE); under the condition of nitrogen protection; be heated to 75 ℃; stir about 10min makes the various lipids that add fully dissolve; add 10.0g propofol and 10ml vitamin E then, the dissolving mixing.Other gets water for injection 800ml, adds glycerol 22g.Under the condition of nitrogen protection, the oil solution that contains propofol adds in the glycerine water solution under the shear agitation condition, makes colostrum, and regulates total amount to 1000ml.High pressure homogenizer homogenizing 5-8 time, homogenization pressure is approximately 100MPa, to particle size range at 150nm-300nm, regulate pH 7.0-8.0, filter, packing feeds nitrogen, sealing.115 ℃ of rotation sterilization 30min, after lamp inspection was qualified, packing was in storage below 25 ℃.
Two, the long-cycled lipid emulsion profofol preparation of the preparation of different polyethyleneglycol derivative proportioning content is (with the Polyethylene Glycol phosphatidyl ethanolamine derivant PEG of molecular weight 2000
2000-DSPE is an example)
Example 3: the long-cycled lipid emulsion profofol preparation of Polyethylene Glycol-phospholipid low content
Prescription:
| Propofol | 1.0g |
| Soybean oil (injection) | 99.0g |
| Lecithin (injection) | 12.0g |
| Enuatrol | 0.4g |
| PEG 2000-DSPE | 0.2g |
| Vitamin E (injection) | 10ml |
| Glycerol | 22g |
| Water for injection | Add to 1000ml |
Get soybean oil 99.0g, add 12.0g lecithin, 0.4g enuatrol, 0.2g Polyethylene Glycol-phospholipid (PEG
2000-DSPE), under the condition of nitrogen protection, being heated to 75 ℃, stir about 10min makes the various lipids that add fully dissolve, and adds 1.0g propofol and 10ml vitamin E then, the dissolving mixing.Other gets water for injection 800ml, adds glycerol 22g.Under the condition of nitrogen protection, the oil solution that contains medicine adds in the glycerine water solution under the shear agitation condition, makes colostrum, and regulates total amount to 1000ml.High pressure homogenizer homogenizing 5-8 time, homogenization pressure is approximately 100MPa, to particle size range at 150nm～300nm, regulate pH 7.0-8.0, filter, packing feeds nitrogen, sealing.115 ℃ of rotation sterilization 30min, after lamp inspection was qualified, packing was in storage below 25 ℃.
Example 4: the high-load long-cycled lipid emulsion profofol preparation of Polyethylene Glycol-phospholipid
Prescription:
| Propofol | 1.0g |
| Soybean oil (injection) | 99.0g |
| Lecithin (injection) | 10.0g |
| Enuatrol | 0.4g |
| PEG 2000-DSPE | 8.0g |
| Vitamin E (injection) | 10ml |
| Glycerol | 22g |
| Water for injection | Add to 1000ml |
Get soybean oil 99.0g, add 10.0g lecithin, 0.4g enuatrol, 8.0g Polyethylene Glycol-phospholipid (PEG
2000-DSPE), under the condition of nitrogen protection, being heated to 75 ℃, stir about 10min makes the various lipids that add fully dissolve, and adds 1.0g propofol and 10ml vitamin E then, the dissolving mixing.Other gets water for injection 800ml, adds glycerol 22g.Under the condition of nitrogen protection, the oil solution that contains medicine adds in the glycerine water solution under the shear agitation condition, makes colostrum, and regulates total amount to 1000ml.High pressure homogenizer homogenizing 5-8 time, homogenization pressure is approximately 100MPa, to particle size range at 150nm-300nm, regulate pH 7.0-8.0, filter, packing feeds nitrogen, sealing.115 ℃ of rotation sterilization 30min, after lamp inspection was qualified, packing was in storage below 25 ℃.
Three, the different volumes vegetable oil is as the long-cycled lipid emulsion profofol preparation of drug solvent preparation
Example 5: the long-cycled lipid emulsion profofol preparation of minimum flow vegetable oil preparation (only with soybean oil as embodiment)
Prescription:
| Propofol | 1.0g |
| Soybean oil (injection) | 50.0g |
| Lecithin (injection) | 10.0g |
| Enuatrol | 0.4g |
| PEG 2000-DSPE | 4.0g |
| Vitamin E (injection) | 10ml |
| Glycerol | 22g |
| Water for injection | Add to 1000ml |
Get soybean oil 50.0g, add 10.0g lecithin, 0.4g enuatrol, 4.0g Polyethylene Glycol-phospholipid (PEG
2000-DSPE), under the condition of nitrogen protection, being heated to 75 ℃, stir about 10min makes the various lipids that add fully dissolve, and adds 1.0g propofol and 10ml vitamin E then, the dissolving mixing.Other gets water for injection 800ml, adds glycerol 22g.Under the condition of nitrogen protection, the oil solution that contains medicine adds in the glycerine water solution under the shear agitation condition, makes colostrum, and regulates total amount to 1000ml.High pressure homogenizer homogenizing 5-8 time, homogenization pressure is approximately 100MPa, to particle size range at 150nm-300nm, regulate pH 7.0-8.0, filter, packing feeds nitrogen, sealing.115 ℃ of rotation sterilization 30min, after lamp inspection was qualified, packing was in storage below 25 ℃.
Example 6: the long-cycled lipid emulsion profofol preparation of high-load vegetable oil preparation (only with soybean oil as embodiment)
Prescription:
| Propofol | 1.0g |
| Soybean oil (injection) | 300.0g |
| Lecithin (injection) | 10.0g |
| Enuatrol | 0.4g |
| PEG 2000-DSPE | 4.0g |
| Vitamin E (injection) | 10ml |
| Glycerol | 22g |
| Water for injection | Add to 1000ml |
Get soybean oil 300.0g, add 10.0g lecithin, 0.4g enuatrol, 4.0g Polyethylene Glycol-phospholipid (PEG
2000-DSPE), under the condition of nitrogen protection, being heated to 75 ℃, stir about 10min makes the various lipids that add fully dissolve, and adds 1.0g propofol and 10ml vitamin E then, the dissolving mixing.Other gets water for injection 800ml, adds glycerol 22g.Under the condition of nitrogen protection, the oil solution that contains medicine adds in the glycerine water solution under the shear agitation condition, makes colostrum, and regulates total amount to 1000ml.High pressure homogenizer homogenizing 5-8 time, homogenization pressure is approximately 100MPa, to particle size range at 150nm-300nm, regulate pH 7.0-8.0, filter, packing feeds nitrogen, sealing.115 ℃ of rotation sterilization 30min, after lamp inspection was qualified, packing was in storage below 25 ℃.
Four, the long-cycled lipid emulsion profofol preparation of different proportioning phospholipid preparations
Example 6: the long-cycled lipid emulsion profofol preparation of minimum proportioning content phospholipid preparation (only with lecithin E80 as embodiment)
Prescription:
| Propofol | 1.0g |
| Soybean oil (injection) | 100.0g |
| Lecithin (injection) | 3.0g |
| Enuatrol | 0.4g |
| PEG 2000-DSPE | 4.0g |
| Vitamin E (injection) | 10ml |
| Glycerol | 22g |
| Water for injection | Add to 1000ml |
Get soybean oil 100.0g, add 3.0g lecithin, 0.4g enuatrol, 4.0g Polyethylene Glycol-phospholipid (PEG
2000-DSPE), under the condition of nitrogen protection, being heated to 75 ℃, stir about 10min makes the various lipids that add fully dissolve, and adds 1.0g propofol and 10ml vitamin E then, the dissolving mixing.Other gets water for injection 800ml, adds glycerol 22g.Under the condition of nitrogen protection, the oil solution that contains medicine adds in the glycerine water solution under the shear agitation condition, makes colostrum, and regulates total amount to 1000ml.High pressure homogenizer homogenizing 5-8 time, homogenization pressure is approximately 100MPa, to particle size range at 150nm-300nm, regulate pH 7.0-8.0, filter, packing feeds nitrogen, sealing.115 ℃ of rotation sterilization 30min, after lamp inspection was qualified, packing was in storage below 25 ℃.
Example 7: the long-cycled lipid emulsion profofol preparation of high mixture ratio content of phospholipid preparation (only with lecithin E80 as embodiment)
Prescription:
| Propofol | 1.0g |
| Soybean oil (injection) | 100.0g |
| Lecithin (injection) | 20.0g |
| Enuatrol | 0.4g |
| PEG 2000-DSPE | 2.0g |
| Vitamin E (injection) | 10ml |
| Glycerol | 22g |
| Water for injection | Add to 1000ml |
Get soybean oil 100.0g, add 20.0g lecithin, 0.4g enuatrol, 2.0g Polyethylene Glycol-phospholipid (PEG
2000-DSPE), under the condition of nitrogen protection, being heated to 75 ℃, stir about 10min makes the various lipids that add fully dissolve, and adds 1.0g propofol and 10ml vitamin E then, the dissolving mixing.Other gets water for injection 800ml, adds glycerol 22g.Under the condition of nitrogen protection, the oil solution that contains medicine adds in the glycerine water solution under the shear agitation condition, makes colostrum, and regulates total amount to 1000ml.High pressure homogenizer homogenizing 5-8 time, homogenization pressure is approximately 100MPa, to particle size range at 150nm-300nm, regulate pH 7.0-8.0, filter, packing feeds nitrogen, sealing.115 ℃ of rotation sterilization 30min, after lamp inspection was qualified, packing was in storage below 25 ℃.
Five, the long-cycled lipid emulsion profofol preparation of different proportioning oleic acid or enuatrol content preparation
Example 8: the long-cycled lipid emulsion profofol preparation that does not add the enuatrol preparation
Prescription:
| Propofol | 1.0g |
| Soybean oil (injection) | 100.0g |
| Lecithin (injection) | 10.0g |
| PEG 2000-DSPE | 4.0g |
| Vitamin E (injection) | 10ml |
| Glycerol | 22g |
| Water for injection | Add to 1000ml |
Get soybean oil 100.0g, add 10.0g lecithin, 4.0g Polyethylene Glycol-phospholipid (PEG
2000-DSPE), under the condition of nitrogen protection, being heated to 75 ℃, stir about 10min makes the various lipids that add fully dissolve, and adds 1.0g propofol and 10ml vitamin E then, the dissolving mixing.Other gets water for injection 800ml, adds glycerol 22g.Under the condition of nitrogen protection, the oil solution that contains medicine adds in the glycerine water solution under the shear agitation condition, makes colostrum, and regulates total amount to 1000ml.High pressure homogenizer homogenizing 5-8 time, homogenization pressure is approximately 100MPa, to particle size range at 150nm-300nm, regulate pH 7.0-8.0, filter, packing feeds nitrogen, sealing.115 ℃ of rotation sterilization 30min, after lamp inspection was qualified, packing was in storage below 25 ℃.
Example 9: the long-cycled lipid emulsion profofol preparation of high mixture ratio enuatrol content preparation
Prescription:
| Propofol | 1.0g |
| Soybean oil (injection) | 100.0g |
| Lecithin (injection) | 10.0g |
| Enuatrol | 6.0g |
| PEG 2000-DSPE | 2.0g |
| Vitamin E (injection) | 10ml |
| Glycerol | 22g |
| Water for injection | Add to 1000ml |
Get soybean oil 100.0g, add 10.0g lecithin, 6.0g enuatrol, 2.0g Polyethylene Glycol-phospholipid (PEG
2000-DSPE), under the condition of nitrogen protection, being heated to 75 ℃, stir about 10min makes the various lipids that add fully dissolve, and adds 1.0g propofol and 10ml vitamin E then, the dissolving mixing.Other gets water for injection 800ml, adds glycerol 22g.Under the condition of nitrogen protection, the oil solution that contains medicine adds in the glycerine water solution under the shear agitation condition, makes colostrum, and regulates total amount to 1000ml.High pressure homogenizer homogenizing 5-8 time, homogenization pressure is approximately 100MPa, to particle size range at 150nm-300nm, regulate pH 7.0-8.0, filter, packing feeds nitrogen, sealing.115 ℃ of rotation sterilization 30min, after lamp inspection was qualified, packing was in storage below 25 ℃.
Six, the long-cycled lipid emulsion profofol preparation of different proportioning content of vitamin E preparations
Example 10: the long-cycled lipid emulsion profofol preparation that does not add the vitamin E preparation
Prescription:
| Propofol | 1.0g |
| Soybean oil (injection) | 100.0g |
| Lecithin (injection) | 10.0g |
| Enuatrol | 0.4g |
| PEG 2000-DSPE | 4.0g |
| Glycerol | 22g |
| Water for injection | Add to 1000ml |
Get soybean oil 100.0g, add 10.0g lecithin, 0.4g enuatrol, 4.0g Polyethylene Glycol-phospholipid (PEG
2000-DSPE), under the condition of nitrogen protection, being heated to 75 ℃, stir about 10min makes the various lipids that add fully dissolve, and adds 1.0g propofol mixing then.Other gets water for injection 800ml, adds glycerol 22g.Under the condition of nitrogen protection, the oil solution that contains medicine adds in the glycerine water solution under the shear agitation condition, makes colostrum, and regulates total amount to 1000ml.High pressure homogenizer homogenizing 5-8 time, homogenization pressure is approximately 100MPa, to particle size range at 150nm-300nm, regulate pH 7.0-8.0, filter, packing feeds nitrogen, sealing.115 ℃ of rotation sterilization 30min, after lamp inspection was qualified, packing was in storage below 25 ℃.
Example 11: the long-cycled lipid emulsion profofol preparation of high mixture ratio content of vitamin E preparation
Prescription:
| Propofol | 1.0g |
| Soybean oil (injection) | 100.0g |
| Lecithin (injection) | 10.0g |
| Enuatrol | 0.4g |
| PEG 2000-DSPE | 4.0g |
| Vitamin E (injection) | 20ml |
| Glycerol | 22g |
| Water for injection | Add to 1000ml |
Get soybean oil 100.0g, add 10.0g lecithin, 0.4g enuatrol, 4.0g Polyethylene Glycol-phospholipid (PEG
2000-DSPE), under the condition of nitrogen protection, being heated to 75 ℃, stir about 10min makes the various lipids that add fully dissolve, and adds 1.0g propofol and 20ml vitamin E then, the dissolving mixing.Other gets water for injection 800ml, adds glycerol 22g.Under the condition of nitrogen protection, the oil solution that contains medicine adds in the glycerine water solution under the shear agitation condition, makes colostrum, and regulates total amount to 1000ml.High pressure homogenizer homogenizing 5-8 time, homogenization pressure is approximately 100MPa, to particle size range at 150nm-300nm, regulate pH 7.0-8.0, filter, packing feeds nitrogen, sealing.115 ℃ of rotation sterilization 30min, after lamp inspection was qualified, packing was in storage below 25 ℃.
Seven, the animal experiment study of long-cycled lipid emulsion profofol preparation
Relate to below with reference to document at animal experiment study:
[1] Xu Shuyun, Bian Rulian, Chen Xiu chief editor. pharmacological experimental methodology. the 2nd edition, Beijing: People's Health Publisher, 1994:968-969.
[2] Sun Ruiyuan. quantitative pharmacology [M]. Beijing: People's Health Publisher .1987,162.
[3]James P，Zacny，Dennis W，et al.Propofol at conscioussedation doses produces mild analgesia to cold pressor-induced painin healthy volunteers.J Clin Anesth.1996，8：469-474。
[4]Sebel PS，Lowdon JD，Propofol：a new intravenous anesthetic.Anesthesioloy.1989，71：260。
7.1 the anesthetic action of long-cycled lipid emulsion profofol preparation
7.1.1 material and method
Animal and medicine Kunming kind white mice, body weight (20 ± 2g) (18～22g), be regardless of by male and female.Long-cycled lipid emulsion profofol preparation is by this prepared in laboratory.
Experimental technique: 1. Kunming mouse is 20, is divided into 2 groups at random, and 10 every group, respectively at tail vein injection propofol 20mgkg
-1Propofol fat emulsion formulation and long-cycled lipid emulsion profofol preparation.Behavioristics changes the persistent period of righting reflex loss [1] after the administration of record mice.2. Kunming mouse is 40, is divided into 2 groups at random.It is standby that propofol fat emulsion formulation and long-cycled lipid emulsion profofol preparation are mixed with geometric ratio solution (1: 0.8) respectively.2 groups of propofol fat emulsion formulation and long-cycled lipid emulsion profofol preparations that mice is prepared in advance respectively at tail vein injection.Press Brownlee sequential method [2] and measure the ED50 value of 2 groups of mice righting reflex loss.
Behind observation index tail vein injection propofol fat emulsion formulation and the long-cycled lipid emulsion profofol preparation, the behavioral activity of observing mice changes, and the generation of anesthetic action is a sign with the righting reflex loss of mice, the persistent period of record mice righting reflex loss.Observe every group of various dose drug anesthesia mice number of elements, calculate ED50, ED50 makes 50% animal produce the dosage of the required oral different propofol formulations of anesthetic action.Experiment finishes the back mice and all puts back to nursing and observation diet and behavior situation in the cage.
Statistical analysis: (x ± s) expression adopts paired t-test to measurement data, and the SPSS10.0 statistical software analyzes with mean ± standard deviation.
7.1.2 experimental result
7.1.2.1 its righting reflex persistent period behind the mouse tail vein injection long-cycled lipid emulsion profofol preparation of influencing to the mice righting reflex persistent period behind the intravenous injection long-cycled lipid emulsion profofol preparation prolongs 83.9% (P＜0.05) than the propofol fat Emulsion of same dose, sees Table 1.
Table 1: behind the intravenous injection long-cycled lipid emulsion profofol preparation to the influence of mice righting reflex persistent period (n=10, x ± s)
| Grouping | The righting reflex persistent period |
| Propofol fat Emulsion | 143±21 |
| Long-cycled lipid emulsion profofol preparation | 263±23 * |
Compare with propofol fat Emulsion group,
*P＜0.05
7.1.2.2 long-cycled lipid emulsion profofol preparation is to the influence of mice righting reflex loss ED50
The ED50 value of mice righting reflex loss is than the minimizing 29.91% of the propofol fat Emulsion of injection same dose behind the intravenous injection long-cycled lipid emulsion profofol preparation.Two groups relatively have significant difference (P＜0.05), see Table 2.
Table 2: long-cycled lipid emulsion profofol preparation to the influence of mice righting reflex loss ED50 (n=20, mgkg-1)
| Grouping | ED50 (95% fiducial limit) |
| Propofol fat Emulsion | 11.77(10.03～12.86) |
| Long-cycled lipid emulsion profofol preparation | 8.25 *(7.33～9.15) |
Compare with propofol fat Emulsion group,
*P＜0.05
Experiment finishes the two groups of mices in back fed through 1 week, and activity is all normal, and weight increase is all arranged.
7.1.3 conclusion
Propofol (propofol) is a kind of novel intravenous anesthetic, is mainly used in that general anesthesia is induced and anesthesia is kept.Also be widely used in the short and small operation of outpatient service in recent years, nonpain treatments [3] such as the gastrointestinal mirror is looked into, artificial abortion, its advantage be quick, fugitive, revive rapidly and fully, continue behind the infusion characteristics such as no cumulative action.Propofol is water insoluble, so the preparation formulation of Shi Yonging has fat milk, cyclodextrin and soluble derivative clinically.The propofol fat emulsion formulation is that propofol is dissolved in the vegetable oil (main component is a fatty acid triglycercide), is emulsifying agent with phospholipid, adds stable oil-in-water type (O/W) Emulsion that isotonic agent and water for injection are made, but injection for intravenous [4].The security performance of phospholipid lipid emulsion profofol is good, and is non-stimulated, is that one of main medication of keeping is induced and anaesthetized to widely used general anesthesia in the clinical treatment.
Polyethylene Glycol (polyethylene glycol) is a kind of macromolecular material that is formed by epoxyethane ring-expansion polymerization, have high-hydrophilic, flexibility, nontoxic and excellent biological compatibility, with polyethyleneglycol modified medicine or pharmaceutical carrier slow down intravenous drug in vivo removing and increase and obvious effect arranged aspect blood medicine half-life of medicine.Therefore, the applicant has prepared polyethyleneglycol modified long-circulation fat fat emulsion formulation, found through experiments, and the ED50 value of mice righting reflex loss is than the obvious minimizing of the propofol fat Emulsion of injection same dose behind the intravenous injection long-cycled lipid emulsion profofol preparation.Two groups relatively have significant difference.Find simultaneously behind the intravenous injection long-cycled lipid emulsion profofol preparation to the mice righting reflex loss persistent period than the propofol fat Emulsion significant prolongation that contains same dose.
Thought by above experimental result: long-cycled lipid emulsion profofol preparation is better than the propofol fat emulsion preparations to the anaesthetic effect of laboratory animal, shows as the long and dosage minimizing of duration of anaesthesia.Its mechanism may be owing to can effectively increase the stability of fat milk with polyethyleneglycol modified fat milk surface, slowed down the breakdown of emulsion that the dilution of injection back causes, Polyethylene Glycol can form isolation barrier on the emulsion droplet surface of lipid emulsion profofol simultaneously, has suppressed the removing of drug disposition.
Claims (5)
1. a long-cycled lipid emulsion profofol preparation is characterized in that, makes said preparation and is made up of the raw material and the percentage by weight of following active component:
Propofol: 0.05%～10%;
Vegetable oil as drug solvent: 5%～30%;
Lecithin as the Emulsion surfactant: 0.3%～2%;
As emulsion preparations stabilizing agent, emulsifying agent, the increase fat milk Polyethylene Glycol phospholipid of half-life in blood: 0.02%～8%;
Oleic acid or oleate as emulsion preparations stabilizing agent, emulsifying agent: 0～0.6%;
Vitamin E as antioxidant: 0～1%;
Surplus is a distilled water, and the percentage by weight sum of above-mentioned raw materials is 100%.
2. described long-cycled lipid emulsion profofol preparation as claimed in claim 1 is characterized in that, the vegetable oil of said drug solvent is a kind of of soybean oil, Petiolus Trachycarpi oil, Oleum Helianthi, SEMEN COICIS oil, Semen Maydis oil or other known plants oil.
3. long-cycled lipid emulsion profofol preparation as claimed in claim 1, it is characterized in that said lecithin as the Emulsion surfactant is a kind of of Ovum Gallus domesticus Flavus lecithin, soybean lecithin, hydrogenated yolk lecithin, hydrogenated soy phosphatidyl choline or synthetic lecithin.
4. according to the long-cycled lipid emulsion profofol preparation of claim 1, it is characterized in that the chain length of said polyethylene glycol polymer is the length between 700～5000.
5. long-cycled lipid emulsion profofol preparation as claimed in claim 1 is characterized in that, the oleic acid of said emulsion preparations stabilizing agent, emulsifying agent or oleate are oleic acid, oleic acid potassium salt or Oleic acid sodium salt.
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| CNB2007100176850A CN100569226C (en) | 2007-04-13 | 2007-04-13 | A kind of long-cycled lipid emulsion profofol preparation |
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| CN100569226C true CN100569226C (en) | 2009-12-16 |
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