WO2008043246A1 - Composition de médicament pour le traitement du diabète de type 2 et sa néopathie chronique - Google Patents

Composition de médicament pour le traitement du diabète de type 2 et sa néopathie chronique Download PDF

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WO2008043246A1
WO2008043246A1 PCT/CN2007/002684 CN2007002684W WO2008043246A1 WO 2008043246 A1 WO2008043246 A1 WO 2008043246A1 CN 2007002684 W CN2007002684 W CN 2007002684W WO 2008043246 A1 WO2008043246 A1 WO 2008043246A1
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berberine
diabetes
mangiferin
type
pharmaceutical composition
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Guang'ai Xu
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Hainan Deze Drug Research Co Ltd
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Hainan Deze Drug Research Co Ltd
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Priority to EP07816310A priority patent/EP2070540B1/en
Priority to JP2009527679A priority patent/JP5232152B2/ja
Publication of WO2008043246A1 publication Critical patent/WO2008043246A1/zh
Priority to US12/382,247 priority patent/US7867979B2/en
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/395Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/435Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
    • A61K31/4353Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom ortho- or peri-condensed with heterocyclic ring systems
    • A61K31/4375Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom ortho- or peri-condensed with heterocyclic ring systems the heterocyclic ring system containing a six-membered ring having nitrogen as a ring heteroatom, e.g. quinolizines, naphthyridines, berberine, vincamine
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/70Carbohydrates; Sugars; Derivatives thereof
    • A61K31/7042Compounds having saccharide radicals and heterocyclic rings
    • A61K31/7048Compounds having saccharide radicals and heterocyclic rings having oxygen as a ring hetero atom, e.g. leucoglucosan, hesperidin, erythromycin, nystatin, digitoxin or digoxin
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P25/00Drugs for disorders of the nervous system
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P27/00Drugs for disorders of the senses
    • A61P27/02Ophthalmic agents
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P27/00Drugs for disorders of the senses
    • A61P27/02Ophthalmic agents
    • A61P27/06Antiglaucoma agents or miotics
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P27/00Drugs for disorders of the senses
    • A61P27/02Ophthalmic agents
    • A61P27/10Ophthalmic agents for accommodation disorders, e.g. myopia
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P27/00Drugs for disorders of the senses
    • A61P27/02Ophthalmic agents
    • A61P27/12Ophthalmic agents for cataracts
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P3/00Drugs for disorders of the metabolism
    • A61P3/08Drugs for disorders of the metabolism for glucose homeostasis
    • A61P3/10Drugs for disorders of the metabolism for glucose homeostasis for hyperglycaemia, e.g. antidiabetics
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P43/00Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P7/00Drugs for disorders of the blood or the extracellular fluid
    • A61P7/02Antithrombotic agents; Anticoagulants; Platelet aggregation inhibitors
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P9/00Drugs for disorders of the cardiovascular system
    • A61P9/14Vasoprotectives; Antihaemorrhoidals; Drugs for varicose therapy; Capillary stabilisers

Definitions

  • the present invention relates to a pharmaceutical composition having a therapeutic effect on type 2 diabetes and chronic complications thereof, wherein the active ingredient is composed of mangiferin and berberine .
  • Type 2 diabetes In recent years, type 2 diabetes and its numerous chronic complications have become the "third killer” threatening human health. According to statistics, the standardized prevalence rate of type 2 diabetes in China has rapidly increased from 0.9% in the early 1980s to 5.21% at present, and the standardized prevalence of impaired glucose tolerance is 4.76%.
  • Type 2 diabetes long-term hyperglycemia is harmful to many tissues and organs of the body, leading to multiple chronic complications of type 2 diabetes, such as coronary heart disease, atherosclerosis, cerebrovascular disease and other macrovascular diseases; diabetic nephropathy, diabetic retina Microvascular disease such as lesions; neuropathy; diabetic foot; maculopathy, cataract, glaucoma, refractive changes, other lesions of the eye such as iris ciliary body lesions.
  • Mangifierii is a natural polyphenolic compound extracted from plants such as the family Liliaceae, and has the molecular formula: C 19 H 18 0u, molecular weight: 422. Its chemical structure is as follows:
  • Mangiferin is a natural free radical scavenging antioxidant. Pharmacological studies of mangiferin have shown a variety of biological activities, such as anti-oxidation, anti-tumor, anti-bacterial, anti-viral, hypoglycemic, anti-inflammatory, choleretic, immunomodulatory , lipid-lowering, etc. Oral or intraperitoneal injection of mangiferin can reduce the blood sugar and blood lipid levels of diabetic rats. The mechanism of hypoglycemic may be to exert its anti-diabetic activity by increasing insulin sensitivity [Miura T, Ichiki
  • mangiferin is insoluble in water, it is extremely limited in its choice of dosage form, bioavailability and absorption of the body. ⁇
  • Berberine also known as berberine, is an isoquinoline alkaloid extracted from the roots and skin of Coptis c/ ⁇ y Feranch from the genus Coptis chinensis, which is the main component of Coptis. Molecular formula:
  • berberine has a variety of biological activities, such as antibacterial, antiviral, hypoglycemic, antiarrhythmic, antihypertensive, antitumor, lipid lowering and the like.
  • Ber can reduce blood glucose in normal mice, alloxan diabetes and its chronic complications mice and spontaneous diabetes and its chronic complications KK mice. The effect is stronger and the duration is longer, and Ber can improve the glucose tolerance of KK mice. In recent years, clinical studies have also proved that Ber has anti-diabetes and its chronic complications, especially in the treatment of type 2 diabetes and its chronic complications.
  • the mechanism may be to produce hypoglycemic effects by inhibiting gluconeogenesis and I of the liver or promoting glucose glycolysis in peripheral tissues, ie, non-insulin dependent.
  • berberine has a significant hypoglycemic effect only in the case of moderately high sugar (11.lmmol/L), and the effect disappears when severely high sugar (22.2mmol/L), so it is mainly suitable for low glucose tolerance, fasting When blood sugar is abnormal or blood sugar is still stable [Yin Jun, Hu Renming, Chen Mingdao. Dimethyl Comparison of the effects of biguanide, troglitazone and berberine on the glucose consumption of Hep G2 cells. Chinese Journal of Endocrinology and Metabolism, 2002, 18(6): 488-489.
  • the therapeutic amount of berberine is quite safe and has few side effects. There was no obstacle in long-term use, and no oral side effects were observed in oral gavage 2.0g [Ji Yubin. Pharmacology and application of active ingredients of traditional Chinese medicine, Harbin: Heilongjiang Science and Technology Press, 2004, 77].
  • the present invention provides a pharmaceutical composition for preparing a therapeutic drug for type 2 diabetes, characterized in that: the raw material of the composition as a medicinal component is composed of mangiferin and berberine, mangiferin and Berberine is composed in a weight ratio of 1:0.1 to 1:20.
  • the preferred ratio of mangiferin and berberine provided by the present invention ranges from 1 :1 to 1:10 by weight.
  • the more preferable ratio of mangiferin and berberine provided by the present invention is in a weight ratio of 1:3-1:6.
  • the above pharmaceutical composition provided by the present invention is characterized in that the berberine may also be berberine hydrochloride, berberine sulfate, berberine citrate or other pharmaceutically acceptable salts of berberine.
  • Another object of the present invention is to provide an application of the above composition for the preparation of a medicament for the treatment of type 2 diabetes.
  • the above pharmaceutical composition provided by the present invention is useful for the preparation of a medicament for the treatment of type 2 diabetes, characterized in that the therapeutic drug for type 2 diabetes is a hypoglycemic agent.
  • the above pharmaceutical composition provided by the present invention is useful for the preparation of a medicament for the treatment of type 2 diabetes, characterized in that the therapeutic agent for type 2 diabetes is a medicament for the prevention and treatment of chronic complications of type 2 diabetes.
  • the use of the above pharmaceutical composition provided by the present invention for the preparation of a medicament for the treatment of type 2 diabetes is characterized by the chronic complications of type 2 diabetes, specifically the type 2 diabetes complicated with macrovascular disease, microangiopathy, neuropathy, diabetic foot , one or more of maculopathy, cataract, glaucoma, refractive changes, and iris ciliary body lesions.
  • the present invention also provides a medicament having a therapeutic effect on type 2 diabetes, characterized in that the medicament consists of the above pharmaceutical composition and a pharmaceutically acceptable adjuvant.
  • the above-mentioned drugs provided by the present invention are oral dosage forms, specifically, tablets, hard capsules, soft capsules, granules, powders, pills, pills, syrups, oral solutions, oral suspensions.
  • the effective dose range of the composition provided by the invention is 20-350 mg/day, and is reduced to 200-3500 mg/day/person according to the dose conversion formula of different kinds of animals.
  • the route of administration is oral, 3 to 4 times a day. Due to the difference between animals and human body, the actual clinical application dose is allowed to be adjusted.
  • the present invention is further illustrated by the following specific embodiments, but is not limited thereto. detailed description:
  • the berberine, berberine hydrochloride, berberine sulfate, berberine citrate and mangifergic acid used in the invention can be obtained by purchasing commercial products (the price is about 1000 yuan per kilogram), and can also be followed by themselves. It is obtained by conventional extraction and separation methods.
  • Preparation Example 1 Preparation of berberine Hydrochloride berberine (purity greater than 98%) Dissolved in hot water, adjusted to pH ⁇ -12 in the solution, allowed to stand overnight, precipitated, precipitated, and dried to obtain berberine. The content of the high performance liquid phase (HPLC) was 98.5%.
  • Preparation 2 Preparation of mangiferin The extract of Zhimu decoction was added twice with 75% ethanol, and the ethanol was recovered under reduced pressure for 1 hour each time. The macroporous resin was adsorbed, washed with water, eluted with 20% ethanol, and the eluate was concentrated under reduced pressure.
  • Preparation formula mixing, adding adhesive to soft material, granulating with 24 mesh sieve, drying and granulating, adding appropriate amount of lubricant, pressing, making 1000 pieces, including film coating, that is.
  • Preparation Example 5 Preparation of Mangiferin Berberine Tablets 50 g of mangiferin and 50 g of berberine were weighed and mixed, passed through a 80 mesh sieve, and 60 g of microcrystalline cellulose and 140 g of pregelatinized starch were added as a diluent to prepare a formulation. Mix and mix, add soft material made of adhesive, granulate with 24 mesh sieve, dry and granulate, add appropriate amount of lubricant, compress, and make 1000 pieces, which are made into thin coat.
  • Preparation Example 6 Preparation of mangiferin berberine tablets Weighed 25 g of mangiferin, 75 g of berberine, mixed, passed through a mesh of 80 mesh, and added 40 g of microcrystalline cellulose. Gelatinized starch 160g as a diluent to form a formulation, mix, add adhesive to soft material, use 24 mesh sieve to granulate, dry and then granulate, add appropriate amount of lubricant, compress, and make 1000 pieces, including film coating , that is.
  • Gelatinized starch 160g as a diluent to form a formulation, mix, add adhesive to soft material, use 24 mesh sieve to granulate, dry and then granulate, add appropriate amount of lubricant, compress, and make 1000 pieces, including film coating , that is.
  • Preparation Example 7 Preparation of mangiferin berberine tablet Weighed 14 g of mangiferin, 86 g of berberine, mixed hook, passed through 80 mesh sieve, 60 g of microcrystalline cellulose, and 140 g of pregelatinized starch as a diluent to form a formulation. Mix and mix, add soft material made of adhesive, granulate with 24 mesh sieve, dry and granulate, add appropriate amount of lubricant, compress, and make 1000 pieces, including film coating.
  • Preparation Example 8 Preparation of mangiferin berberine tablet Weighing 9 g of mangiferin and 91 g of berberine, mixing, passing through a mesh of 80 mesh, adding 30 g of microcrystalline cellulose and 170 g of starch as a diluent to prepare a formulation, and mixing. Adding a soft material made of a binder, granulating with a 24-mesh sieve, drying and granulating, adding an appropriate amount of a lubricant, and compressing the tablet to obtain 1000 pieces, which are obtained by coating a film.
  • Preparation Example 9 Preparation of Mangiferin Berberine Tablets Weighed 4.8 g of mangiferin, 95.2 g of berberine, passed through a mesh of 80 mesh, and added 40 g of microcrystalline cellulose and 160 g of pregelatinized starch as a diluent to form a formulation. Evenly, adding soft material made of adhesive, granulating with 24 mesh sieve, drying and granulating, adding appropriate amount of lubricant, pressing, and making 1000 pieces, including film coating, is obtained.
  • Preparation Example 10 Preparation of Berberine Tablets 100 g of berberine was weighed, passed through a 80 mesh sieve, and an appropriate amount of starch was added as a diluent to prepare a formulation, which was mixed, added with a binder to make a soft material, and sieved with a 24 mesh sieve. After drying, the whole granules, adding appropriate amount of lubricant, tableting, coating, that is, the dosage is 100 mg/tablet.
  • Preparation 11 Preparation of mangiferin hydrochloride berberine tablets Weighed 25 g of mangiferin, 75 g of berberine hydrochloride, mixed hook, sieved through 80 mesh, added with appropriate amount of methylcellulose
  • pre-gelatinized starch 180g as a diluent to form a formulation, mix the hook, add the binder to make the soft material, use 24 mesh sieve to granulate, dry and then granulate, add appropriate amount of lubricant, compress, and make 1000 pieces. Packed film coat, that is.
  • Preparation 12 Preparation of mangiferin citrate berberine granules Weighed 28 g of mangiferin and 172 g of berberine citrate, mixed, passed through a mesh of 80 mesh, and added 600g of flavoring agent sucrose.
  • Carboxymethylcellulose 200g is formulated into a formulation, mixed, added into a soft material made of a binder, granulated with a 24-mesh sieve, dried and granulated to obtain 1000 g, and packaged.
  • Preparation Example 13 Preparation of Mangiferin Hydrochloride Berberine Capsules 14.3 g of mangiferin and 85.7 g of berberine hydrochloride were mixed, mixed and sieved through an 80 mesh sieve, and 20 g of microcrystalline cellulose and 80 g of pregelatinized starch were added.
  • the diluent is composed of a formulation, mixed, added with a soft material made of a binder, granulated with a 24-mesh sieve, dried, granulated, and filled into capsules to obtain 1000 capsules.
  • Preparation Example 14 Preparation of Mangiferin Berberine Dropping Pills Weighed mango glucoside and berberine, and uniformly mixed according to 1:4, 400 g of polyethylene glycol 4000, heated and melted in a water bath, and then added mangiferin berberine combination.
  • the speed lOOr/minc is sampled at 5, 10, 20, 30, 60, 120, 240, 360, 480min, 2ml each time, and immediately 2 ml of the isothermal medium was added, and the extract was filtered through a 0.45 ⁇ m filter, and the concentrations of mangiferin and berberine were measured, respectively, and the average dissolution rate was calculated.
  • Table 1 The results are shown in Table 1.
  • Test Example 2 Comparison of oral bioavailability of mangiferin berberine composition with mangiferin and berberine.
  • Rats were fasted for 16 h, given free access to water, and administered intragastrically.
  • the dose of sample A was 40 mg/kg
  • the dose of sample B was 160 mg/kg
  • the dose of sample C was 200 mg/kg.
  • GK Goto-Kakizaki
  • 1.1 Drugs Mangiferin and berberine were prepared according to Preparation Examples 1 and 2, and then mixed or diluted according to the dose to be administered.
  • mice were randomly selected and divided into model group and low dose group of mangiferin (10 mg/kg) and mangiferin.
  • Wistar rats were used as a normal control group. Ten rats in each group. The fixed daily time is administered by intragastric administration. The control group was given an equal amount of physiological saline. A total of 12 weeks of administration.
  • the first reaction system consisted of 67 mmol/L, pH 6.2 Na + -K + phosphate buffer, 10 mmol/L DL-glyceraldehyde, 5 mmol/L 2-mercaptoethanol, 0.1 mmol. /L of NADPH and enzyme amount; the experimental cup includes all reagents, and the control cup replaces the substrate DL-glyceraldehyde with double distilled water.
  • SOD Superoxide dismutase
  • MDA Malondialdehyde
  • 10mg/kg mangiferin and 10mg/kg berberine group failed to improve blood sugar, blood lipids, AR, MDA, SOD in type 2 diabetic rats; 30mg/kg mangiferin and 20mg/kg berberine group improved to some extent Blood glucose, blood lipids, AR, MDA, SOD in type 2 diabetic rats.
  • the low-dose group [mangoside (10mg/kg) + berberine (10m g /kg)] significantly improved blood glucose, blood lipids, AR, MDA, SOD in type 2 diabetic rats, compared with the model group p ⁇ 0.01 There was also a significant difference (P ⁇ 0.05) compared with 30 mg/kg mangiferin and 20 mg/kg berberine group.
  • mangiferin and berberine in the composition have a synergistic effect.
  • the large dose group of the composition [mangoside (200 mg/kg) + berberine (150 mg/kg)] significantly improved blood glucose, blood lipids, AR, MDA, SOD in type 2 diabetic rats, compared with the model group P ⁇ 0.001. See Table 4 for details.
  • mangiferin and berberine compositions have stronger hypoglycemic activity than mangiferin and berberine monomers, and through their lipid-lowering, improving renal oxidation index and lens AR activity, indicating that It has the effect of preventing chronic complications of diabetes.
  • Experimental Example 4 Effects of different proportioning compositions on type 2 diabetic rats 1 Drugs and animals
  • Mangiferin (mg/kg) Berberine (mg/kg) Mangiferin: Berberine Composition A 20 0
  • Composition B 18.2 1.8 1:0.1 Composition C 10 10 1:1 Composition D 5 15 1:3 Composition E 2.8 17.2 1:6 Composition F 1.8 18.2 1:10 Composition G 0.95 19.05 1:20 Composition H 0 20 3 observation indicators
  • Blood lipid crystal AR activity antioxidant index experimental group blood glucose (mmol/L) NADH DA
  • composition E 6.30 ⁇ 2.09 VV l I.48 ⁇ 0.21 " V 1.48 ⁇ 0.28" V t l .58 ⁇ 0.56 0.58 ⁇ 0.21 2.67 ⁇ 0.44 MV "Composition F 9.29 ⁇ 2.09** vv ' 1.79 ⁇ 0 ⁇ 21 " ⁇ ' 3.19 ⁇ 0.28* v ° 1.99 ⁇ 0.54 0.97 ⁇ 0.66 195.67 ⁇ 13.70”2.89 ⁇ 0.42” v " Composition G 10.95 ⁇ 3.23"1.90 ⁇ 0.34" ⁇ ' 3.24 ⁇ 0.56 ,v " 2.28 ⁇ 0.51 0.68 ⁇ 0.42' 179.14 ⁇ 13.47* 2.92 ⁇ 0.4l " VB composition H 12.34 ⁇ 2.09* 2.91 ⁇ 0.09' 3.33 ⁇ 0.26* 2.48 ⁇ 0.58 1.39 ⁇ 0.53 171.10 ⁇ 13.81 3.52 ⁇ 0.77* Note: Compared with the model group: ' ⁇ 0.05, " ⁇ 0.01 , "* ⁇ 0.001 ; compared with the composition group: v p ⁇ 0.05, v

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Description

具有 2型糖尿病及其慢性并发症治疗作用的药物组合物 技术领域 本发明涉及一种具有 2型糖尿病及其慢性并发症治疗作用的药物组合物,其 中的活性成分由芒果苷与小檗碱组成。 背景技术
近年来, 2 型糖尿病及其众多的慢性并发症已成为威胁人类健康的"第三号 杀手"。 据统计, 我国 2型糖尿病的标化患病率, 由 80年代初期的 0.9%迅猛增 至目前的 5.21%, 糖耐量减低的标化患病率为 4.76%。 2型糖尿病长期高血糖对 机体许多组织和器官产生危害,导 [多种 2型糖尿病慢性并发症发生,如冠心病、 动脉粥样硬化、脑血管病等大血管病变; 糖尿病肾病、糖尿病性视网膜病变等微 血管病变; 神经病变; 糖尿病足; 黄斑病、 白内障、 青光眼、 屈光改变、 虹膜睫 状体病变等眼的其他病变等。
目前,已上市的口服降糖药大都价格昂贵或具有一定的不良反应而导致患者 依从性较差。 2型糖尿病慢性并发症的发病机理尚不完全明了, 临床亦没有较理 想的治疗药物。因此幵发价廉高效低毒的既具有降糖作用, 又能防治 2型糖尿病 慢性并发症的药物具有重要的临床意义与市场价值。
芒果苷 (mangiferiii)是从百合科植物知母等植物中提取的天然多酚类化合物, 分子式: C19H180u,分子量: 422。 其化学结构如下:
Figure imgf000002_0001
芒果苷是一种天然的清除自由基的抗氧化剂,芒果苷的药理研究表明其具有 多种生物活性, 如抗氧化、 抗肿瘤、 抗菌、 抗病毒、 降糖、 抗炎、 利胆、 免疫调 节、 降脂等。 其中芒果苷口服或腹腔注射皆可降低糖尿病鼠的血糖、 血脂水平, 其降糖的机制可能为通过增加胰岛素敏感性发挥其抗糖尿病活性【Miura T,Ichiki
HjHashimoto I,et al.Antidiabetic activity of a xanthone compound mangiferin.Phytomedicine,2001,8(2):85-87】。 近年来, 越来越多的证据发现高糖、 氧化应激和糖尿病慢性并发症之间密切相关。 Murugananda^等研究发现, 腹腔 注射芒果苷控制了链脲霉素诱导糖尿病鼠产生的脂质过氧化反应,降低糖尿病及 其慢性并发症大鼠由于氧化性损伤引起的糖基化血红蛋白和血清肌酸磷酸激酶 (CPK)的量, 并明显地保护动物免于心脏和肾脏的损伤【Muruganandan S,Gupta S,Kataria M,et al. mangiferin protects the streptozptocin-induced oxidative damage to cardiac and renal tissues in rats.Toxicology,2002, 176(3) : 165- 173】。 大鼠一次性腹腔 注射芒果苷的半数致死量(LD5Q)为 365mg/kg【余胜民,钟鸣.芒果甙药理研究进 展.中国中医药科技, 1999,6(3): 199-200】, 可见芒果苷的安全性极好。
因为芒果苷不溶于水, 故其在剂型的选择、机体的生物利用、吸收等受到极 大限制。 ·
小檗碱 (berberine , Ber)又名黄连素,系从毛莨科黄连属植物黄连 Coptis c/^ y Feranch根和皮中提取的异喹啉类生物碱, 为黄连的主要成分。 分子式:
Figure imgf000003_0001
小檗碱的药理研究表明其具有多种生物活性, 如抗菌、抗病毒、 降糖、抗心 率失常、 降压、 抗肿瘤、 降脂等。
动物实验研究发现, Ber可以降低正常小鼠、 四氧嘧啶糖尿病及其慢性并发 症小鼠和自发性糖尿病及其慢性并发症 KK小鼠的血糖。作用较强、持续时间也 较长, 同时 Ber可以改善 KK小鼠的葡萄糖耐量。 近年来临床研究也证明, Ber 具有抗糖尿病及其慢性并发症作用,尤其应用在 2型糖尿病及其慢性并发症的治 疗方面。其机制可能是通过抑制肝脏的糖异生和 I或促进外周组织的葡萄糖酵解 而产生降糖作用,即非胰岛素依赖性。但小檗碱只有在中度高糖 (l l .lmmol/ L)条 件下才有显著的降糖效应, 严重高糖 (22.2mmol/L) 时作用消失, 从而主要适用 于糖耐量低减、 空腹血糖超常或糖尿病血糖尚稳定时【殷峻,胡仁明,陈名道.二甲 双胍、 曲格列酮和小檗碱对 Hep G2 细胞耗糖作用比较.中华内分泌代谢杂 志, 2002,18(6):488-489】。
近年研究表明,持续高血糖可使细胞内醛糖还原酶的活性增加,最终导致糖 尿病神经、视网膜及各种血管病变的发生。抑制醛糖还原酶活性对治疗糖尿病慢 性并发症具有重要意义。许多学者研究表明小檗碱对抑制醛糖还原酶具有一定作 用【刘长山,董砚虎.中药黄芩苷与黄连素对糖尿病鼠醛糖还原酶活性作用的观察. 中国 2型糖尿病杂志,1996,4(3):163】。
小檗碱的治疗量相当安全, 副作用也很少。长期服用未见任何障碍, 一次口 服 2.0g未见任何副作用【季宇彬.中药有效成分药理与应用,哈尔滨:黑龙江科学技 术出版社, 2004,77】。
小檗碱生物利用度较低, 发挥降糖效力需要一定的血糖范围,而使得小檗碱 在糖尿病患者的临床使用范围大大受限。 发明内容 为了开发价廉高效低毒的既具有降糖作用,又能防治 2型糖尿病慢性并发症 的药物, 本发明人通过大量的研究发现, 将小檗碱与芒果苷以一定的比例组合, 产生了以下几点意想不到的效果: 首先, 小檗碱与芒果苷组合后, 治疗 2型糖尿病的效果显著增强, 二者具有 协同作用。 具体表现在-
1、 将小檗碱的非胰岛素依赖性降糖作用与芒果苷的胰岛素增敏作用有机地 结合, 产生更显著的降糖作用。
2、 芒果苷的抗氧化作用及降脂作用与小檗碱的降脂、 醛糖还原酶抑制等作 用的有机结合, 可有效地用于防治 2型糖尿病慢性并发症。 其次, 因为芒果苷不溶于水, 而将二者组合后, 芒果苷溶出性显著增加。 最后, 因为芒果苷与小檗碱生物利用度皆较低, 而将二者组合后, 生物利用 度显著提高。 鉴于该组合物所产生的有益效果,结合芒果苷与小檗碱两单体口服给药的高 安全性与低原料成本,可知该组合物可以达到获得价廉高效低毒的既具有降糖作 用, 又能防治 2型糖尿病慢性并发症的药物的目的。 具体技术方案如下: 本发明提供一种用于制备 2型糖尿病治疗药物的药物组合物, 其特征在于: 该组合物作为药效组分的原料是由芒果苷与小檗碱组成,芒果苷和小檗碱以重量 比为 1 :0.1-1 :20组成。
本发明提供的芒果苷和小檗碱的优选比例范围为重量比为 1 :1-1 :10。
本发明提供的芒果苷和小檗碱的更优选比例范围为重量比为 1 :3-1 :6。
本发明提供的上述药物组合物, 其特征在于所述小檗碱也可以是盐酸小檗 碱、 硫酸小檗碱、 鞣酸小檗碱或小檗碱其他医学上可接受的盐。
本发明另一目的是提供上述药.物组合物在制备 2型糖尿病治疗药物中的应 用。
本发明提供的上述药物组合物在制备 2型糖尿病治疗药物中的应用,其特征 在于, 所述 2型糖尿病治疗药物为降糖药物。
本发明提供的上述药物组合物在制备 2型糖尿病治疗药物中的应用,其特征 在于, 所述 2型糖尿病治疗药物为 2型糖尿病慢性并发症防治药物。
本发明提供的上述药物组合物在制备 2型糖尿病治疗药物中的应用,其特征 在于所述的 2型糖尿病慢性并发症,具体指 2型糖尿病并发大血管病变、微血管 病变、 神经病变、 糖尿病足、 黄斑病、 白内障、 青光眼、 屈光改变、 虹膜睫状体 病变中的一种或几种。
本发明还提供一种具有 2型糖尿病治疗作用的药物,其特征在于该药物是由 上述药物组合物与药用辅料组成。
本发明提供的上述药物为口服剂型, 具体为片剂、硬胶囊剂、 软胶囊剂、颗 粒剂、 散剂、 丸剂、 滴丸剂、 糖浆剂、 口服溶液剂、 口服混悬剂。
本发明提供的组合物大鼠有效剂量范围为 20— 350mg/日, 按照不同种类动 物间剂量换算公式折到人体为 200— 3500mg/日 /人。给药途径为口服, 每日 3— 4 次。 因动物与人体之间的差异, 故允许实际临床应用剂量有所调整。 下面给出具体实施方式对本发明作进一步说明, 但不限于此。 具体实施方式: 本发明所采用的小檗碱、盐酸小檗碱、硫酸小檗碱、鞣酸小檗碱、 芒果苷皆 可以通过购买市售品获得(价格在每公斤 1000元人民币左右),亦可自行按照常 规提取分离等方法获得。 制备例 1小檗碱的制备 取盐酸小檗碱(纯度大于 98%) 用热水溶解, 向溶液中氨水调 ρΗΙΟ-12,静 置过夜, 析出沉淀, 过滤, 干燥, 即得小檗碱,高效液相 (HPLC)测定含量 98.5%。 制备例 2芒果苷的制备 知母饮片加 75%乙醇回流提取两次, 每次 1小时, 减压回收乙醇, 大孔树脂 吸附, 水洗后, 用 20%乙醇洗脱, 洗脱液减压浓缩得粗品新芒果苷; 再用 40% 乙醇洗脱,洗脱液减压浓缩得粗芒果苷。粗品新芒果苷和粗品芒果苷经重结晶精 制获得新芒果苷和芒果苷纯品, 纯度经 HPLC测定大于 95%。 制备例 3芒果苷片剂的制备 称取芒果苷 100g, 过 80目筛, 加入微晶纤维素 100g、 淀粉 100g作为稀释 剂组成制剂配方, 混匀, 加入粘合剂制软材, 用 24目筛制粒, 干燥后整粒, 加 入适量润滑剂, 压片, 制成 1000片, 包薄膜衣, 即得, 含药量为 lOOmg/片。 制备例 4芒果苷小檗碱片剂的制备 称取芒果苷 90.9g, 小檗碱 9.1g, 混匀, 过 80目筛, 加入羧甲基纤维素 80g、 预胶化淀粉 120g作为稀释剂组成制剂配方, 混匀, 加入粘合剂制软材,用 24目 筛制粒, 干燥后整粒, 加入适量润滑剂, 压片, 制成 1000片, 包薄膜衣, 即得。 制备例 5芒果苷小檗碱片剂的制备 称取芒果苷 50g, 小檗碱 50g, 混匀, 过 80目筛, 加入微晶纤维素 60g、 预 胶化淀粉 140g作为稀释剂组成制剂配方, 混匀, 加入粘合剂制软材, 用 24目筛 制粒, 干燥后整粒, 加入适量润滑剂, 压片, 制成 1000片, 包薄 ϋ衣, 即得。 制备例 6芒果苷小檗碱片剂的制备 称取芒果苷 25g, 小檗碱 75g, 混匀, 过 80目筛, 加入微晶纤维素 40g、 预 胶化淀粉 160g作为稀释剂组成制剂配方, 混匀, 加入粘合剂制软材, 用 24目筛 制粒, 干燥后整粒, 加入适量润滑剂, 压片, 制成 1000片, 包薄膜衣, 即得。 制备例 7芒果苷小檗碱片剂的制备 称取芒果苷 14g, 小檗碱 86g, 混勾, 过 80目筛, 加入微晶纤维素 60g、 预 胶化淀粉 140g作为稀释剂组成制剂配方, 混匀, 加入粘合剂制软材, 用 24目筛 制粒, 干燥后整粒, 加入适量润滑剂, 压片, 制成 1000片, 包薄膜衣, 即得。 制备例 8芒果苷小檗碱片剂的制备 称取芒果苷 9g, 小檗碱 91g, 混匀, 过 80目筛, 加入微晶纤维素 30g、 淀 粉 170g作为稀释剂组成制剂配方, 混匀, 加入粘合剂制软材, 用 24目筛制粒, 干燥后整粒, 加入适量润滑剂, 压片, 制成 1000片, 包薄膜衣, 即得。 制备例 9芒果苷小檗碱片剂的制备 称取芒果苷 4.8g, 小檗碱 95.2g, 过 80目筛, 加入微晶纤维素 40g、 预胶化 淀粉 160g作为稀释剂组成制剂配方,混匀,加入粘合剂制软材,用 24目筛制粒, 干燥后整粒, 加入适量润滑剂, 压片, 制成 1000片, 包薄膜衣, 即得。 制备例 10小檗碱片剂的制备 称取小檗碱 100g, 过 80目筛, 加入适量淀粉作为稀释剂组成制剂配方, 混 匀, 加入粘合剂制软材, 用 24目筛制粒, 干燥后整粒, 加入适量润滑剂, 压片, 包衣, 即得, 含药量为 lOOmg/片。 制备例 11芒果苷盐酸小檗碱片剂的制备 称取芒果苷 25g, 盐酸小檗碱 75g, 混勾, 过 80目筛, 加入适量甲基纤维素
20g、预胶化淀粉 180g作为稀释剂组成制剂配方, 混勾, 加入粘合剂制软材, 用 24目筛制粒, 干燥后整粒, 加入适量润滑剂, 压片, 制成 1000片, 包薄膜衣, 即得。 制备例 12芒果苷鞣酸小檗碱颗粒剂的制备 称取芒果苷 28g,鞣酸小檗碱 172g,混匀,过 80目筛,加入矫味剂蔗糖 600g、 羧甲基纤维素 200g组成制剂配方, 混匀, 加入粘合剂制软材, 用 24目筛制粒, 干燥后整粒, 制得 1000g, 包装, 即得。 制备例 13芒果苷盐酸小檗碱胶囊的制备 称取芒果苷 14.3g, 盐酸小檗碱 85.7g, 混匀, 混匀过 80目筛, 加入适量微 晶纤维素 20g、 预胶化淀粉 80g作为稀释剂组成制剂配方, 混匀, 加入粘合剂制 软材, 用 24目筛制粒, 干燥后整粒, 装胶囊, 制成 1000粒, 即得。 制备例 14芒果苷小檗碱滴丸的制备 称取芒果苷、 小檗碱适量, 按 1 : 4混合均匀, 将 400g聚乙二醇 4000, 置 水浴中加热熔融后加入芒果苷小檗碱组合物 100g, 75°C保温下搅拌使分散均匀, 药液转移至滴丸机 75°C恒温储料罐中, 在滴头口径为 30./4.0mm, 滴速 60滴 /分 钟, 冷却剂为二甲基硅油, 冷却液温度 20°C±2°C条件下, 调节丸重为 40mg, 滴 制成丸, 除去滴丸表面上的冷却液, 分装, 即得。 实验例 1 : 芒果苷与小檗碱组合物溶出度试验 分别取制备例 3、 6、 10样品各 6片, 分别标记为 MAG、 MB、 BER, 置于 转篮中, 于 900mlpH6.8的磷酸缓冲溶液中, 按中国药典二部附录溶出度项下, 采用转篮法, 转速 lOOr/minc 于 5、 10、 20、 30、 60、 120、 240、 360、 480min 取样, 每次 2ml, 并立即补充同温介质 2ml, 取出液以 0.45μπι滤膜过滤后, 分 别测芒果苷和小檗碱浓度, 计算平均溶出率。 结果见表 1。
表 1 芒果苷与小檗碱组合物溶出度试验结果
Figure imgf000009_0001
结论: 芒果苷小檗碱组合物中.芒果苷溶出率较单体制剂有显著提高。
试验例 2 芒果苷小檗碱组合物与芒果苷、 小檗碱口服生物利用度比较。
1. 药液配制
称取芒果苷适量, 加 1%羧甲基纤维素钠溶液混悬, 制成 25mg/mL混悬液, 为样 A;称取盐酸小檗碱适量,加 1%羧甲基纤维素钠溶液,配成浓度为 25mg/mL 混悬液, 为样 B; 称取芒果苷、 盐酸小檗碱适量, 按 1 : 4混合,力 Π 1%羧甲基纤 维素钠溶液, 配成浓度为 50mg/mL混悬液, 为样 C。
2. 灌胃给药方案
大鼠禁食 16h, 自由饮水, 分别灌胃给药, 样 A剂量为 40 mg/kg、样 B剂量 为 160 mg/kg、样 C剂量为 200mg/kg。分别于给药前 5min和给药后 0、 1、 2、 3、 4、 5、 6、 8、 10、 12、 15、 24h取血 0.4ml,立即加入含肝素的离心管中, SOOOr.min 1 离心 10min, 得血.清。
3. 样品处理
血浆样品的处理: 精密吸取血清便样品 ΙΟΟμΙ^, 精密加入乙腈一乙酸(9: 1 )
400μί, 涡旋 1.5min, 3000r/min离心 10min, 吸取上清液至干净的试管内, 氮气 吹干, 残留物加入 ΙΟΟμΙ^流动相, 涡旋 1.5min, 3000r/min离心 10min, 吸取上 清液, 尖底进样瓶中, HPLC进样 20μί。
4样品的测定
4.1 仪 器
1100系列高效液相色谱仪 (美国 Agilent公司):包括 G1312A二元泵, G1313A 自动进样器。
4.2 血浆样品测定的色谱条件色谱柱: discover ODS柱 (250mmx
6mm, 5μπι); 流动相、 甲醇 -0.1%Η3ΡΟ4水溶液梯度洗脱; 流速 l.Oml/min检 波长: 264nm, 柱温: 40°C。
4.3结果
表 2芒果苷、 盐酸小檗碱与其组合物的生物利用度比较
参数 芒果苷 盐酸小檗碱 芒果苷盐酸小檗碱组合物 芒果苷 34.2±2.6
Cmax ( g/ml) 18.6±1.5 54.1±2.6 - 小檗碱 87.4±3.1 芒果苷 6.2±0.5
Τι/2β (hr) 4.3±0.4 3.5±0.3 - 小檗碱 4.4±0.4 芒果苷 2158.5±215.6
AUC0-∞/ g.h/ml 1198.6±390.7 3439.5±249. 8 - 小檗碱 4641. 5±380. 4 上述结果显示:口服芒果苷盐酸小檗碱组合物较各自单独服用生物利用度有 显著提高, 组合物组中芒果苷和小檗碱的血药浓度(Cmax)和 AUC值远高于二 者单独服用的 Cmax和 AUC值, 表明芒果苷小檗碱组合物具有互相促进吸收的 作用。 下面实验例中以肾组织与眼晶状体作为 2型糖尿病慢性并发症的代表器官。 因 GK (Goto-Kakizaki ) 大鼠是一种自发性的糖尿病模型, 其发病机理又与 临床 II型糖尿病的发病机理极为相似, 在糖尿病症发作后, 快速出 '现高血糖、 胰岛素分泌减弱等, 后期并发视网膜病、 微血管病、 神经病、 肾病。 因此被广泛 应用于 2型糖尿病研究, 故以下实验以 GK大鼠为糖尿病模型。 实验例 3不同剂量芒果苷、 小檗碱、 组合物对 2型糖尿病大鼠的影响 1材料
1.1药物: 按制备例 1、 2制备芒果苷与小檗碱, 然后按照给药剂量与配比混合或稀释 即可。 1.2试剂: 还原型辅酶 II (NADPH) 、 还原型辅酶 I (NADH) : 分析纯, Sigma化 司产品; DL—甘油醛: 分析纯, 意大利 Roth公司产品。
1.3 动物: 正常 SPF级 Wistar大鼠及 4月龄 GK大鼠, 雌雄各半, 均购自上海斯莱克 实验动物有限公司。 除正常对照外, 其余大鼠喂饲高脂饲料(饲料中蛋白含量为 20%,胆固醇含 量为 3.5%) 。
2实验分组 将大鼠适应性饲养 1周后,随机选取血糖值在 l l.lmmol/L以上的 GK大鼠, 分为模型组及芒果苷小剂量组(10mg/kg)、 芒果苷中剂量组(30mg/kg) 、 芒果 苷大剂量组 (200mg/kg ) ; 小檗碱小剂量组 (10mg/kg ) 、 小檗碱中剂量组 (20mg/kg)、小檗碱大剂量组( 150mg/kg);组合物小剂量组 [芒果苷( 10mg/kg) +小檗碱 (10mg/kg ) ] 、 组合物大剂量组 [芒果苷 (200mg/kg) +小檗碱 ( 150mg/kg) ] 。 Wistar大鼠做为正常对照组。 每组大鼠 10只。 每日固定时间 以灌胃给药的方式进行。 对照组给予等量的生理盐水。 共给药 12周。
3 观察指标
3.1 血糖与血脂: 试验结束时收集血标本, 血糖、血脂(甘油三酯、胆固醇) 釆用 HITACHI7080自动生化分析仪检测。 3.2醛糖还原酶 (AR) 活性: 试验结束时取左侧晶体加甘油置 -80°C冰箱保 存, 供测定 AR活性用。 晶体 AR活性测定参照 Maragoudakis等的方法, 略作变 动: 即记录 NADPH在 340nm处吸光值下降 10U来表示酶活性。 本研究使用两 种反应体系, 第一种反应体系包括 67mmol/L、 pH6.2 的 Na+-K+磷酸缓冲液, 10mmol/L的 DL—甘油醛、 5mmol/L的 2—巯基乙醇、 0.1mmol/L的 NADPH和 酶适量; 实验杯包括全部试剂, 对照杯以双蒸水代替底物 DL—甘油醛。 第二种 反应体系以 0.1mmol/L的 NADH代替 NADPH,其余试剂同第一种反应体系。测 定组织匀浆酶活性, 同时测定蛋白含量, 一单位酶活性规定为 lmin 产生 1μιηο1ΝΑΟΡ+ (或 NDA+) 的酶量, 各组织酶活性用比活性进行比较, 比活性 = 酶单位 /mg蛋白。
3.3氧化指标: 3.3.1组织匀浆制备:大鼠给药 12周后,股动脉放血处死,取肾组织,用 4Ό 预冷生理盐水洗净血液, 滤纸吸干水分后称重, 每克肾组织加 10ml生理盐水, 置匀浆机上 10000转 /分, 10秒, 3次, 制备 10%匀桨, 4000转 /分离心 10分 钟, 取上清液, -20Ό保存待测。
3.3.2生化指标测定:
1 )超氧化物歧化酶(SOD): 黄嘌呤氧化酶法测定, 试剂盒购自南京建成生 物工程研究所;
2) 丙二醛 (MDA): 硫代巴比妥酸法测定, 试剂盒购自南京建成生物工程 研究所。
3.4统计学分析: 计量资料值以均数标准差 ( ±SD) 表示。 两组间比较采 用 t检验。
4结果
10mg/kg芒果苷与 10mg/kg小檗碱组未能改善 2型糖尿病大鼠血糖、血脂、 AR、 MDA、 SOD; 30mg/kg芒果苷与 20mg/kg小檗碱组均在一定程度上改善 2 型糖尿病大鼠血糖、 血脂、 AR、 MDA、 SOD。 组合物小剂量组 [芒果苷(10mg/kg) +小檗碱(10mg/kg) ]非常显著地改 善 2型糖尿病大鼠血糖、 血脂、 AR、 MDA、 SOD, 与模型组比较 p<0.01, 而 且与 30mg/kg芒果苷与 20mg/kg小檗碱组比较亦有显著性差异 (P<0.05)。 提 示组合物中芒果苷和小檗碱具有协同作用。 组合物大剂量组 [芒果苷(200mg/kg) +小檗碱(150mg/kg) ]极其显著地 改善 2型糖尿病大鼠血糖、 血脂、 AR、 MDA、 SOD, 与模型组比较 P<0.001。 详见表 4。
5 结论 综上可见,芒果苷与小檗碱组合物较芒果苷、小檗碱各单体具有更强的降糖 活性, 且通过其具有的降脂、 改善肾氧化指标与晶状体的 AR活性, 表明其具有 防治糖尿病慢性并发症的作用。 实验例 4不同配比组合物对 2型糖尿病大鼠的影响 1药物与动物
1.1药物: 按制备例 1、 2制备芒果苷与小檗碱, 然后按照表 3所列给药剂量 与配比混合即可。
1.2动物:正常 SPF级 Wistar大鼠及 GK大鼠,均购自上海斯莱克实验动物 有限公司。 除正常对照外,其余大鼠喂饲高脂饲料(词料中蛋白含量为 20%,胆固醇含 量为 3.5%) 。
2实验分组 将大鼠适应性饲养 1周后,随机选取血糖值在 l l.lmmol/L以上的 GK大鼠, 分为模型组及组合物各组(如表 3所示) 。 Wistar大鼠做为正常对照组。每组大 鼠 10只。 每日固定时间以灌胃给药的方式进行。 对照组给予等量的生理盐水。 共给药 12周。 表 3 组合物配比情况表
芒果苷 (mg/kg) 小檗碱(mg/kg) 芒果苷:小檗碱 组合物 A 20 0
组合物 B 18.2 1.8 1:0.1 组合物 C 10 10 1:1 组合物 D 5 15 1:3 组合物 E 2.8 17.2 1:6 组合物 F 1.8 18.2 1:10 组合物 G 0.95 19.05 1:20 组合物 H 0 20 3观察指标
同实验例 1。 4结果
结果如表 5所示, 不同配比的药物组合物对 2型糖尿病大鼠血糖、 血脂 AR、 SOD, MDA均有显著的改善作用。
表 4各试验药物对 2型糖尿病大鼠的影响
血脂 晶体 AR活性 抗氧化指标 实验分组 血糖(mmol/L)
NADPH NADH MDA (nmol
1†汕二酯(mmol/L) l|Al醇(mmol/L ) SOD (U/mg pro)
(0.1 mmoI/L) (0.1 mmol/L) pro)
6.45±0.37*' 1.40±0.15" 1.25±0.13" 0.56±0.35" 0.30±0.15" 2] 0.43±30.32" 2.59±0.58 模^组 20.63±3.24 3.51±0.37 4.50±1.36 5.40±2.15 . 2.90±0.75 132.56±23.50 4.37±0.92 芒果音小剂 Mtl 20.75±3.39 3.62±0.41 4·细.53 5.36±2.17 2.89±0.69 130.74±23.47 4.41±0.87 芒 ¾1Ι·中剂 M组 13.05±2.23* 2.82±0.22* 3.16±0.32' 3.05±0.59* 1.64±0.42* 168.23±13.46* 3.48±0.47 芒果苷大剂量组 9.05±2.04*' 1.82±0.32* 3.06±0.29' 1.87±0.5 l " 0.94±0.45*' 194·15±13.55" 2.75±0.48 小檗碱小剂量组 21.24±3.13 3.49±0.68 4.53±1.28 5.64±2.19 2.98±0.60 131.56士 23.49 4.39±0.90 小檗碱中剂量组 12.29±2.76' 2.79±0.24* 3.27±0.24* 2.28±0.51 · 1.32±0.37· 170.04±13.49* 3.51±0·46' 小檗碱太剂量组 9.1 1±2.08" 1.80±0.19* 3.01±0.28* 1.87±0.5l" 0.94±0.45" 195.10±13.7ΐ" 2.76±0.4θ 组合物低剂量组 S.35±2.09**v" 1.87±0.56"v" 2.96±0.46"v ° 1.74±0.47"ν " 0·91±0.15··ν Β 200.51±33.25'·ν" 2·03±0.4 组合物高剂量组 6.11±2.02"* 1.51±0.20*" 1 ·37±0.29·" 1.60±0,55·" 0.65±0.ΐ " 218.51±33.15'" 2.57±0.33' 注: 与模型组比较: 'ρ<0.05, "p<0.01 , "VO.OOI ; 芒果苷中剂 ¾组比较: vp<0.05, vvp<0.01 : 与小 ¾碱中剂 ¾组比较: °p<0.05, a Bp<0.01.
表 5 不同配比组合物对 2型糖尿病大鼠的影响
血脂 晶体 AR活性 抗氧化指标 实验分组 血糖(mmol/L) NADH DA
甘油二酯(mmol/L) 胆同醇(mmol/L) NADPH (O. l mmol/L) SOD (U/mg pro)
(O.lmmol/L) (nmol/mg pro) 空白组 6.23±0.29 1.39±0.15 1.15±0.16" 0.65±0.41 0.29±0.15 220.56±30.33 2.56±0.54 模纖 21.45±3.25 3.56±0.38 4.62±1.36 5.68±2.23 2.99±0.65 135.57±23.06 4.33±0.90 组合物 A 14.11±2.03* 2.79±0.30* 3.26±0.26* 3.1 1 ±0.56 1.97±0.46" 168.26±13.50" 3.43±0.89* 组合物 B 10.25±2.3 l "v I.91±0.02**v 3.17±0.22*v " 2.81±0.6l ' 1.64±0.45'v 178.23±13.63*v 2.97±0.40"v" 组合物 C 9.27±2.06"vv 1.92±0.24**v 3.07±0.28*v ° 1.79±0.59' 0·99±0.41·· 195.17±13.47**¾ 2.87±0.46"v" 组合物 D 6.47±2.08"vv 1 55"V 2.68±0.38*'V t 1.44±0.49' 0.71±0.14 208.14±33.05 2.61±0.45"V B
••v« 218.59±32.16
组合物 E 6.30±2.09 VV l I .48±0.21 "V 1.48±0.28"V t l .58±0.56 0.58±0.21 2.67±0.44MV" 组合物 F 9.29±2.09**vv' 1.79±0·21 "ν' 3.19±0.28*v° 1.99±0.54 0.97±0.66 195.67±13.70" 2.89±0.42"v" 组合物 G 10.95±3.23" 1.90±0.34"ν' 3.24±0.56,v" 2.28±0.51 0.68±0.42' 179.14±13.47* 2.92±0.4l "VB 组合物 H 12.34±2.09* 2.91 ±0.09' 3.33±0.26* 2.48±0.58 1.39±0.53 171.10±13.81 3.52±0.77* 注: 与模型组比较: 'ρ<0.05, "ρ<0.01 , "*ρ<0.001 ; 与组合物 Α组比较: vp<0.05, vvp<0.01 ; 与组合物 H组比较: "ρ<0.05' pO.Ol ,

Claims

权 利 要 求
、 一种用于制备 2型糖尿病治疗药物的药物组合物, 其特征在于: 该组合物作 为药效组分的原料是由芒果苷与小檗碱组成, 芒果苷和小檗碱以重量比为 1 :0.1-1 :20组成。
、 权利要求 1 所述的药物组合物, 其特征在于芒果苷和小檗碱以重量比为 1 :1-1:10组成。
、 权利要求 2 所述的药物组合物, 其特征在于芒果苷和小檗碱以重量比为 1 :3-1 :6组成。.
、 权利要求 1所述的药物组合物,其特征在于所述小檗碱也可以是盐酸小檗碱、 硫酸小檗碱、 鞣酸小檗碱或小檗碱其他医学上可接受的盐。
、 权利要求 1所述的药物组合物在制备 2型糖尿病治疗药物中的应用。
、 权利要求 5所述药物组合物在制备 2型糖尿病治疗药物中的应用, 其特征在 于, 所述 2型糖尿病治疗药物为降糖药物。
、 权利要求 5所述药物组合物在制备 2型糖尿病治疗药物中的应用, 其特征在 于, 所述 2型糖尿病治疗药物为 2型糖尿病慢性并发症防治药物。
、 权利要求 7所述药物组合物在制备 2型糖尿病治疗药物中的应用, 其特征在 于所述的 2型糖尿病慢性并发症, 具体指 2型糖尿病并发大血管病变、 微血 管病变、 神经病变、 糖尿病足、 黄斑病、 白内障、 青光眼、 屈光改变、 虹膜 睫状体病变中的一种或几种。
、 一种具有 2型糖尿病治疗作用的药物, 其特征在于该药物是由权利要求 1所 述的药物组合物与药用辅料组成。
0、 权利要求 9所述的药物为口服剂型, 具体为片剂、硬胶囊剂、软胶囊剂、 颗粒剂、 散剂、 丸剂、 滴丸剂、 糖浆剂、 口服溶液剂、 口服混悬剂。
PCT/CN2007/002684 2006-09-12 2007-09-11 Composition de médicament pour le traitement du diabète de type 2 et sa néopathie chronique Ceased WO2008043246A1 (fr)

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