CN106267173A - 一种Cu/Zn SOD纳米颗粒及其制备方法与应用 - Google Patents
一种Cu/Zn SOD纳米颗粒及其制备方法与应用 Download PDFInfo
- Publication number
- CN106267173A CN106267173A CN201610667640.7A CN201610667640A CN106267173A CN 106267173 A CN106267173 A CN 106267173A CN 201610667640 A CN201610667640 A CN 201610667640A CN 106267173 A CN106267173 A CN 106267173A
- Authority
- CN
- China
- Prior art keywords
- sod
- particle
- nano
- preparation
- glucose
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002105 nanoparticle Substances 0.000 title claims abstract description 64
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 239000002245 particle Substances 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 16
- 238000004321 preservation Methods 0.000 claims abstract description 12
- 235000000346 sugar Nutrition 0.000 claims abstract description 12
- 150000003254 radicals Chemical class 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims abstract description 4
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims description 23
- 239000008103 glucose Substances 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 230000000694 effects Effects 0.000 claims description 14
- 102000004190 Enzymes Human genes 0.000 claims description 12
- 108090000790 Enzymes Proteins 0.000 claims description 12
- 239000003814 drug Substances 0.000 claims description 10
- 235000013305 food Nutrition 0.000 claims description 8
- 235000013339 cereals Nutrition 0.000 claims description 7
- 239000012153 distilled water Substances 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 3
- 240000007594 Oryza sativa Species 0.000 claims description 2
- 235000007164 Oryza sativa Nutrition 0.000 claims description 2
- 229940079593 drug Drugs 0.000 claims description 2
- 125000002791 glucosyl group Chemical group C1([C@H](O)[C@@H](O)[C@H](O)[C@H](O1)CO)* 0.000 claims description 2
- 230000003345 hyperglycaemic effect Effects 0.000 claims description 2
- 230000002218 hypoglycaemic effect Effects 0.000 claims description 2
- 235000009566 rice Nutrition 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 abstract description 4
- 201000010099 disease Diseases 0.000 abstract description 3
- 239000003431 cross linking reagent Substances 0.000 abstract description 2
- 230000003647 oxidation Effects 0.000 abstract description 2
- 238000007254 oxidation reaction Methods 0.000 abstract description 2
- 230000036542 oxidative stress Effects 0.000 abstract description 2
- 238000001338 self-assembly Methods 0.000 abstract description 2
- 235000001727 glucose Nutrition 0.000 description 16
- 230000008859 change Effects 0.000 description 10
- 239000008280 blood Substances 0.000 description 9
- 210000004369 blood Anatomy 0.000 description 9
- 241000700159 Rattus Species 0.000 description 6
- 102000004169 proteins and genes Human genes 0.000 description 6
- 108090000623 proteins and genes Proteins 0.000 description 6
- 230000002641 glycemic effect Effects 0.000 description 5
- 239000008176 lyophilized powder Substances 0.000 description 5
- 239000000523 sample Substances 0.000 description 4
- 206010067584 Type 1 diabetes mellitus Diseases 0.000 description 3
- 239000012296 anti-solvent Substances 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000003304 gavage Methods 0.000 description 3
- 239000002086 nanomaterial Substances 0.000 description 3
- 108091003079 Bovine Serum Albumin Proteins 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 102000019197 Superoxide Dismutase Human genes 0.000 description 2
- 108010012715 Superoxide dismutase Proteins 0.000 description 2
- HIMXGTXNXJYFGB-UHFFFAOYSA-N alloxan Chemical compound O=C1NC(=O)C(=O)C(=O)N1 HIMXGTXNXJYFGB-UHFFFAOYSA-N 0.000 description 2
- 230000003064 anti-oxidating effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229940098773 bovine serum albumin Drugs 0.000 description 2
- 230000001413 cellular effect Effects 0.000 description 2
- 206010012601 diabetes mellitus Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 150000002304 glucoses Chemical class 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 230000000877 morphologic effect Effects 0.000 description 2
- 238000007410 oral glucose tolerance test Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 238000011552 rat model Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000004083 survival effect Effects 0.000 description 2
- 208000023275 Autoimmune disease Diseases 0.000 description 1
- 201000009030 Carcinoma Diseases 0.000 description 1
- 208000024172 Cardiovascular disease Diseases 0.000 description 1
- 229930091371 Fructose Natural products 0.000 description 1
- RFSUNEUAIZKAJO-ARQDHWQXSA-N Fructose Chemical compound OC[C@H]1O[C@](O)(CO)[C@@H](O)[C@@H]1O RFSUNEUAIZKAJO-ARQDHWQXSA-N 0.000 description 1
- 239000005715 Fructose Substances 0.000 description 1
- 244000068988 Glycine max Species 0.000 description 1
- 235000010469 Glycine max Nutrition 0.000 description 1
- WTDHULULXKLSOZ-UHFFFAOYSA-N Hydroxylamine hydrochloride Chemical compound Cl.ON WTDHULULXKLSOZ-UHFFFAOYSA-N 0.000 description 1
- 102000004407 Lactalbumin Human genes 0.000 description 1
- 108090000942 Lactalbumin Proteins 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 206010070834 Sensitisation Diseases 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 229920002494 Zein Polymers 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- -1 beauty treatment Substances 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 235000014633 carbohydrates Nutrition 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 231100000673 dose–response relationship Toxicity 0.000 description 1
- 238000002296 dynamic light scattering Methods 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004459 forage Substances 0.000 description 1
- 230000002496 gastric effect Effects 0.000 description 1
- 206010073071 hepatocellular carcinoma Diseases 0.000 description 1
- 230000005847 immunogenicity Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000010253 intravenous injection Methods 0.000 description 1
- 230000000302 ischemic effect Effects 0.000 description 1
- 206010025482 malaise Diseases 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229960004329 metformin hydrochloride Drugs 0.000 description 1
- OETHQSJEHLVLGH-UHFFFAOYSA-N metformin hydrochloride Chemical compound Cl.CN(C)C(=N)N=C(N)N OETHQSJEHLVLGH-UHFFFAOYSA-N 0.000 description 1
- XZWYZXLIPXDOLR-UHFFFAOYSA-N metformin hydrochloride Natural products CN(C)C(=N)NC(N)=N XZWYZXLIPXDOLR-UHFFFAOYSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 208000031225 myocardial ischemia Diseases 0.000 description 1
- 235000021590 normal diet Nutrition 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000007427 paired t-test Methods 0.000 description 1
- 235000010603 pastilles Nutrition 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000013641 positive control Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000003946 protein process Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000010410 reperfusion Effects 0.000 description 1
- 206010039073 rheumatoid arthritis Diseases 0.000 description 1
- 210000000582 semen Anatomy 0.000 description 1
- 230000008313 sensitization Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 208000011580 syndromic disease Diseases 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 239000005019 zein Substances 0.000 description 1
- 229940093612 zein Drugs 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
- A61K38/16—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- A61K38/43—Enzymes; Proenzymes; Derivatives thereof
- A61K38/44—Oxidoreductases (1)
- A61K38/446—Superoxide dismutase (1.15)
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
- A61K9/50—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
- A61K9/51—Nanocapsules; Nanoparticles
- A61K9/5107—Excipients; Inactive ingredients
- A61K9/5115—Inorganic compounds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
- A61K9/50—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
- A61K9/51—Nanocapsules; Nanoparticles
- A61K9/5107—Excipients; Inactive ingredients
- A61K9/5123—Organic compounds, e.g. fats, sugars
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Y—ENZYMES
- C12Y115/00—Oxidoreductases acting on superoxide as acceptor (1.15)
- C12Y115/01—Oxidoreductases acting on superoxide as acceptor (1.15) with NAD or NADP as acceptor (1.15.1)
- C12Y115/01001—Superoxide dismutase (1.15.1.1)
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- Epidemiology (AREA)
- Pharmacology & Pharmacy (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Organic Chemistry (AREA)
- Nanotechnology (AREA)
- Optics & Photonics (AREA)
- Biomedical Technology (AREA)
- Genetics & Genomics (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- General Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Gastroenterology & Hepatology (AREA)
- Immunology (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Inorganic Chemistry (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
Abstract
本发明公开了一种热加工方法生成的自组装Cu/Zn SOD纳米颗粒及其制备方法与应用。制备得到Cu/Zn SOD纳米颗粒平均粒径范围为30~300 nm,表面电荷范围在‑10~‑30 mV。Cu/Zn SOD纳米颗粒冻干品的复溶性好,易于稳定保存。本发明涉及的Cu/Zn SOD来源于食品原料,安全性高,抗氧化性优良。其纳米颗粒的制备方法不涉及任何交联剂,且用到的还原糖属于食品原料,为广大人群食用,安全性高。本发明涉及的Cu/Zn SOD纳米颗粒有望应用于清除自由基,防止氧化应激造成的各种疾病或者亚健康状态。
Description
技术领域
本发明涉及食品与医药技术领域中的蛋白质新剂型和制剂技术,具体涉及到一种具有体内抗氧化作用的Cu/Zn SOD自组装纳米颗粒及其制备方法和应用。
背景技术
超氧化物歧化酶(Superoxide dismutase,SOD)是专一清除体内自由基的酶,在人体抗氧化系统中发挥重要的作用。SOD可用于治疗由氧自由基异常增高引起的各种疾病,如类风湿性关节炎、自身免疫性疾病、心肌缺血和缺血再灌流综合症、心血管疾病、辐射病、癌症等,并已经取得了显著的疗效。然而我国药用SOD尚在临床试用中。SOD临床应用受到限制的原因有:体内半衰期短,具有免疫原性,产生致敏性,易酶解失活,贮存过程中不稳定等。为克服局限,研究学者对SOD分子的修饰、改造等方面的技术虽然已取得了无数的成果,但是由于天然SOD本身的理化性质所限,故改善SOD特性的新方法需要进一步的研究探索。
纳米技术在社会各界备受关注,同时,纳米材料的制备与应用也随着纳米科技的不断发展而发展。纳米颗粒是纳米材料之一,一般认为无机物和金属的粒径在1-100 nm范围内的颗粒称为纳米颗粒;有机物和聚合物的粒径在1000 nm以下的颗粒称为纳米颗粒。由于纳米颗粒粒径小,具有特定优势,如:比表面积大、反应活性增加、胃停留时间以及渗透率增加,易溶于水和有机相等,目前已经广泛应用于食品、医药、美容、化工等领域。
目前蛋白纳米材料的制备方法主要有三种:一是动态超高压均质法,如涂宗财等采用动态超高压均质法制备了大豆纳米蛋白,但该方法成本高且容易造成蛋白质机械损伤。二是反溶剂法,Gülseren, Y等人和Ji等使用乙醇作为反溶剂制备了乳清蛋白纳米颗粒;任晓鸣等采用超临界CO2反溶剂法制备大豆异黄酮-玉米醇溶蛋白复合纳米颗粒,但有机溶剂多数有毒,或在蛋白表面有残留。三是乳化法,杜青等以牛血清白蛋白(BSA)为模型药物,使用一种新型载药微球的水包油固体乳化法制备得到粒径约为30 nm的含药粒子,但是乳化剂易残留损害蛋白质品质。以上三种方法都需要采用多种试剂且操作都比较复杂。
目前还没有关于自组装而成的SOD纳米颗粒的制备与研究的相关报道,本发明选用Cu/Zn SOD、葡萄糖等还原糖为原料,采用热加工方式,制备Cu/Zn SOD纳米颗粒。纳米颗粒平均粒径范围为30-300 nm,特别是80-200nm;表面电荷呈负性,范围在-10 ~ -30mV。
发明内容
本发明的目的在于提供一种Cu/Zn SOD纳米颗粒及其制备方法。考虑到应用的安全问题,本发明涉及的Cu/Zn SOD纳米颗粒的设计从两个“天然”体系出发:一是Cu/Zn SOD和葡萄糖等还原糖分别属于自然界普遍存在的蛋白质和糖类物质,二是该蛋白质的纳米化过程发生在热加工过程。本发明得到的Cu/Zn SOD纳米颗粒表面规则,粒径分布均匀,热稳定性及保存稳定性良好。
为实现上述目的,本发明可以采用如下技术方案:
一种Cu/Zn SOD纳米颗粒,所述的Cu/Zn SOD纳米颗粒原料组成为:还原糖与Cu/Zn SOD的摩尔比为0.1:1-6:1。
所述Cu/Zn SOD纳米颗粒平均粒径范围为30-300 nm,特别是80-200nm;表面电荷呈负性,范围在-10 ~ -30mV。
所述还原糖为葡萄糖。
Cu/Zn SOD纳米颗粒的制备方法,取Cu/Zn SOD粉剂于锥形瓶中,加入蒸馏水使之完全溶解;然后往锥形瓶中加入葡萄糖,使SOD与葡萄糖的摩尔比为0.1:1-6:1,溶解后于30-60℃下水浴保温0-120 min,再置于水浴锅中70-100 ℃水浴保温40-120 min,即得到Cu/Zn SOD纳米颗粒。
所述的Cu/Zn SOD纳米颗粒在去除自由基的药品或食品中的应用。
所述的Cu/Zn SOD纳米颗粒在降血糖的药品或者食品中的应用,其特征在于:作为辅助降血糖食品或者药品时,使用剂量范围为3万~100万酶活力单位/天;1~3天给药一次。
一种Cu/Zn SOD蛋白纳米颗粒,由牛血Cu/Zn SOD和葡萄糖经过热加工方式产生,该纳米颗粒其酶活力范围为1000 ~ 20000 U/mL,平均粒径为30~300 nm,表面电荷呈负性,范围在-10 ~ -30mV。
所述的Cu/Zn SOD纳米颗粒的制备方法(以葡萄糖和Cu/Zn SOD物质量之比1:1为例)包括:称取Cu/Zn SOD冻干粉32 mg于100mL锥形瓶中,加入32 mL蒸馏水使之完全溶解。然后往锥形瓶中加入葡萄糖 0.36 mg,使SOD与葡萄糖的摩尔比为1:1,溶解后于60℃下水浴保温60 min,再置于水浴锅中100 ℃水浴保温60 min,即可得到Cu/Zn SOD纳米颗粒。采用盐酸羟胺法、动态光散射技术、激光多普勒电泳和场发射电子扫描显微镜对Cu/Zn SOD纳米颗粒进行性质研究。实验制备得到的Cu/Zn SOD纳米颗粒其酶活力范围为1000 ~ 20000U/mL,平均粒径为30 ~ 300 nm,表面电荷呈负性,范围在-10 ~ -30mV。
本发明的优点在于:本发明涉及的Cu/Zn SOD和葡萄糖等还原糖来源于食品原料,安全性高。其纳米颗粒的制备方法不涉及任何交联剂,安全性高。本发明得到的Cu/Zn SOD纳米颗粒具有活性,表面规则,粒径分布均匀,稳定性好。涉及的Cu/Zn SOD纳米颗粒有望应用于清除自由基,防止氧化应激造成的各种疾病或者亚健康状态。
附图说明
图1 Cu/Zn SOD纳米颗粒的电镜观察图。
图2 Cu/Zn SOD纳米颗粒粒径分布图。
图3 Cu/Zn SOD纳米颗粒酶活变化图。
图4 Cu/Zn SOD纳米颗粒粒径分布变化图。
图5 Cu/Zn SOD纳米颗粒Zeta电位变化图。
图6 Cu/Zn SOD纳米颗粒对百草枯刺激的Hep-G2细胞存活率的影响。#为纳米SOD各组与天然SOD的配对t检验, #为显著性差异,p<0.05;##为极显著性差异,p<0.01,n=5。
图7 Hep-G2细胞形态学观察。
图8 Cu/Zn SOD纳米颗粒(G-SOD)干预30天后I型糖尿病模型大鼠血糖的变化情况图。
图9 Cu/Zn SOD纳米颗粒(G-SOD)干预30天、60天后Ⅱ型糖尿病模型大鼠血糖的变化图。
图10 Cu/Zn SOD纳米颗粒(G-SOD)干预60天Ⅱ型糖尿病大鼠口服糖耐量(OGTT)的变化曲线。
具体实施方式
实施例1 :Cu/Zn SOD纳米颗粒的制备
称取Cu/Zn SOD冻干粉32 mg于100mL锥形瓶中,并加入32 mL蒸馏水使之完全溶解。然后往锥形瓶中加入葡萄糖 0.36 mg,使SOD与葡萄糖的摩尔比为1:1,溶解后于60℃下水浴保温60 min,再置于水浴锅中100 ℃水浴保温60 min,即可得到Cu/Zn SOD纳米颗粒。Cu/ZnSOD纳米颗粒电镜观察图见附图1。用激光粒度仪测定其粒径及表面电位,测得粒径为175.86±0.71nm,表面电位范围在-17.27±0.59mV。Cu/Zn SOD纳米颗粒粒度分布图见附图2。纳米颗粒其酶活力为1102.98±31.37U/mL。
自样品制备后,在一定期间内连续测定样品的酶活力、粒径、Zeta电位,通过样品酶活力保留情况、粒径变化和电位变化来表征纳米颗粒保存的稳定性。4℃冰箱保存过程中,Cu/Zn SOD纳米颗粒酶活变化见附图3,粒度变化见附图4,Zeta电位变化见附图5。
实施例2 :制备方法及颗粒特征2
称取Cu/Zn SOD冻干粉64 mg于100mL锥形瓶中,并加入64mL蒸馏水使之完全溶解。然后往锥形瓶中加入葡萄糖 0.72 mg,使SOD与葡萄糖的摩尔比为1:1,溶解后于60℃下水浴保温60 min,再置于水浴锅中75 ℃水浴保温60 min,即可得到Cu/Zn SOD纳米颗粒。用激光粒度仪测定其粒径及表面电位,测得粒径为168.8±0.6 nm,表面电荷范围在-13.66±0.55mV,纳米颗粒其酶活力为22542.9±879.1 U/mL。
实施例3 :制备方法及颗粒特征3
称取适量Cu/Zn SOD冻干粉与果糖,使二者的摩尔比为1:1,溶解后于60℃下水浴保温60 min,再置于水浴锅中75 ℃水浴保温60 min,即可得到Cu/Zn SOD纳米颗粒。用激光粒度仪测定其粒径及表面电位,测得粒径为94.78±0.91nm,表面电荷范围在-24.34±0.28 mV,纳米颗粒其酶活力为25332.67±736.51U/mL。
实施例4 :应用于细胞的抗氧化情况
以Hep-G2细胞为模型,通过百草枯(PQ)刺激和两种SOD(Cu/Zn SOD纳米颗粒、天然SOD)的作用,测定肝癌细胞最终存活率,探究不同浓度的Cu/Zn SOD纳米颗粒(标注为G-SOD)、天然SOD(标注为SOD)对Hep-G2细胞氧化应激的影响,生化分析结果见附图6;倒置显微镜下观察对照组和各加药组细胞形态变化,结果见附图7。
结果显示在一定浓度范围内G-SOD即Cu/Zn SOD纳米颗粒对百草枯刺激的细胞的修复作用比天然SOD强,且生化分析结果与形态学观测结果一致。
实施例5 :应用于I型糖尿病模型鼠的降血糖情况
采用尾尖静脉注射40mg/kg Alloxan诱导Ⅰ型糖尿病大鼠,随机挑选6只为正常对照组,其余造模成功的36只大鼠随机分为6组,每组6只,药物干预30天。阳性对照组灌胃10mg/kg盐酸二甲双胍;SOD纳米颗粒组(G-SOD组)分为G-SOD(高剂量)、G-SOD(中剂量)、G-SOD(低剂量)三组,其剂量分别30000 U/天Kg、10000 U/天Kg和3000U/天Kg。SOD组灌胃天然SOD溶液,剂量与G-SOD(中)相等;模型组和正常对照组灌胃等量生理盐水。药物干预30天前后血糖监测结果见附图8。
结果显示:各药物干预组在血糖控制方面均有一定的作用,且血糖值均显著低于模型组(P <0.01),G-SOD组在血糖控制方面呈剂量依赖性(P <0.01),同等剂量的G-SOD(中剂量)组血糖控制好于SOD组(P <0.05)。
实施例6 :应用于Ⅱ型糖尿病模型鼠的降血糖情况
用于Ⅱ型糖尿病的实验大鼠随机挑选9只为正常对照组,用普通饲料喂养,其余54只用高糖高脂饲料喂养30天后,腹腔注射STZ溶液,将造模成功糖尿病大鼠随机分为6组,每组9只。给药情况同实施例5。药物干预30天、60天前后血糖监测结果见附图9,口服糖耐量(OGTT)结果见附图10。
结果显示:各药物干预组均一定程度降低了糖尿病大鼠血糖,且最终血糖值均极显著低于模型组。G-SOD(高剂量)、(中剂量)、(低剂量)组间均存在显著差异(P <0.05)。说明对于Ⅱ型糖尿病,G-SOD和SOD都发挥了良好的血糖控制作用,并且呈现剂量效应,但同等剂量的G-SOD(中剂量)组血糖控制好于SOD组(P <0.05)。
实施例7 :制备方法及颗粒特征4
称取Cu/Zn SOD冻干粉64 mg于100mL锥形瓶中,并加入64mL蒸馏水使之完全溶解。于60℃下水浴保温60 min,再置于水浴锅中75 ℃水浴保温60 min,即可得到Cu/Zn SOD纳米颗粒。用激光粒度仪测定其粒径及表面电位,测得粒径为173.07±1.33 nm,表面电荷范围在-19.3±0.75 mV。
以上所述仅为本发明的较佳实施例,凡依本发明申请专利范围所做的均等变化与修饰,皆应属本发明的涵盖范围。
Claims (7)
1.一种Cu/Zn SOD纳米颗粒,其特征在于:所述的Cu/Zn SOD纳米颗粒是热加工方法生成的自组装纳米颗粒;在液体中的平均粒径范围为30—300 nm; 表面电荷呈负性,范围在-10 — -30mV。
2. 根据权利要求1所述的一种Cu/Zn SOD纳米颗粒,其特征在于:所述的Cu/Zn SOD纳米颗粒的生产原料中还加入还原糖组分。
3.根据权利要求2所述的一种Cu/Zn SOD纳米颗粒,其特征在于:还原糖组分与Cu/ZnSOD的物质的量之比为0.1:1—6:1。
4.根据权利要求2所述的一种Cu/Zn SOD纳米颗粒,其特征在于:所述还原糖为葡萄糖。
5.一种如权利要求1所述的Cu/Zn SOD纳米颗粒的制备方法,其特征在于:取Cu/Zn SOD粉剂于锥形瓶中,加入蒸馏水使之完全溶解;然后往锥形瓶中加入葡萄糖,使SOD与葡萄糖的摩尔比为0.1:1-6:1,溶解后于30-60℃下水浴保温0-120 min,再置于水浴锅中70-100℃水浴保温40-120 min,即得到Cu/Zn SOD纳米颗粒。
6.权利要求1所述的Cu/Zn SOD纳米颗粒在去除自由基的药品或食品中的应用。
7.权利要求1所述的Cu/Zn SOD纳米颗粒在降血糖的药品或者食品中的应用,其特征在于:作为辅助降血糖食品或者药品时,使用剂量范围为3万~100万酶活力单位/天;1~3天给药一次。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610667640.7A CN106267173B (zh) | 2016-08-16 | 2016-08-16 | 一种Cu/Zn SOD纳米颗粒及其制备方法与应用 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610667640.7A CN106267173B (zh) | 2016-08-16 | 2016-08-16 | 一种Cu/Zn SOD纳米颗粒及其制备方法与应用 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN106267173A true CN106267173A (zh) | 2017-01-04 |
CN106267173B CN106267173B (zh) | 2019-08-09 |
Family
ID=57670202
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201610667640.7A Active CN106267173B (zh) | 2016-08-16 | 2016-08-16 | 一种Cu/Zn SOD纳米颗粒及其制备方法与应用 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN106267173B (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112021558A (zh) * | 2020-09-11 | 2020-12-04 | 福州大学 | 一种自组装Cu/Zn-SOD纳米颗粒及其应用 |
CN112121155A (zh) * | 2020-10-22 | 2020-12-25 | 福州大学 | 一种用于降血糖的sod脂质体及其制备方法与应用 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1563368A (zh) * | 2004-04-14 | 2005-01-12 | 王成余 | 纳米化超氧化物歧化酶及其制备方法 |
CN101947312A (zh) * | 2010-08-26 | 2011-01-19 | 董萍 | 一种可直接皮肤外用的聚乙二醇化超氧化物歧化酶(mPEG-SOD)纳米乳及其制备方法 |
-
2016
- 2016-08-16 CN CN201610667640.7A patent/CN106267173B/zh active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1563368A (zh) * | 2004-04-14 | 2005-01-12 | 王成余 | 纳米化超氧化物歧化酶及其制备方法 |
CN101947312A (zh) * | 2010-08-26 | 2011-01-19 | 董萍 | 一种可直接皮肤外用的聚乙二醇化超氧化物歧化酶(mPEG-SOD)纳米乳及其制备方法 |
Non-Patent Citations (3)
Title |
---|
FANNY CAPUTO 等: "Pharmacological potential of bioactive engineered nanomaterials", 《BIOCHEMICAL PHARMACOLOGY》 * |
MARAM K. REDDY 等: "Superoxide dismutase-loaded PLGA nanoparticles protect cultured human neurons under oxidative stress", 《APPL BIOCHEM BIOTECHNOL》 * |
SONG C 等: "Preparation and characterization of a thermostable enzyme (Mn-SOD) immobilized on supermagnetic nanoparticles", 《APPL MICROBIOL BIOTECHNOL》 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112021558A (zh) * | 2020-09-11 | 2020-12-04 | 福州大学 | 一种自组装Cu/Zn-SOD纳米颗粒及其应用 |
CN112121155A (zh) * | 2020-10-22 | 2020-12-25 | 福州大学 | 一种用于降血糖的sod脂质体及其制备方法与应用 |
Also Published As
Publication number | Publication date |
---|---|
CN106267173B (zh) | 2019-08-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Reis et al. | Nanoparticulate delivery system for insulin: design, characterization and in vitro/in vivo bioactivity | |
JP5405527B2 (ja) | 薬理薬物の新規製剤、その製造法及びその使用法 | |
Leone et al. | Drug nanosuspensions: a ZIP tool between traditional and innovative pharmaceutical formulations | |
Palazzo et al. | Supercritical emulsion extraction fabricated PLA/PLGA micro/nano carriers for growth factor delivery: Release profiles and cytotoxicity | |
CN104398477B (zh) | 一种松萝酸纳米混悬液及其制备方法和用途 | |
Yang et al. | A stabilizer-free and organic solvent-free method to prepare 10-hydroxycamptothecin nanocrystals: in vitro and in vivo evaluation | |
Zabihi et al. | PLGA–HPMC nanoparticles prepared by a modified supercritical anti-solvent technique for the controlled release of insulin | |
CN107149592A (zh) | 具有淋巴靶向功能的生物自组装纳米晶注射剂及制备方法 | |
CN1872072A (zh) | 前列地尔纳米乳注射剂及其制备方法 | |
Tan et al. | Rational design of thermosensitive hydrogel to deliver nanocrystals with intranasal administration for brain targeting in Parkinson’s disease | |
WO2008052410A1 (fr) | Composition à base de supermolécules de coenzyme hydrosoluble q10 et son procédé de préparation | |
CN106267173A (zh) | 一种Cu/Zn SOD纳米颗粒及其制备方法与应用 | |
Barrett et al. | Increasing the dissolution rate of itraconazole processed by gas antisolvent techniques using polyethylene glycol as a carrier | |
Yang et al. | Stability and bioavailability of protein matrix‐encapsulated astaxanthin ester microcapsules | |
CN106983719A (zh) | 一种多西他赛聚合物纳米胶束注射剂、其制备方法及其在制备治疗肿瘤药物中的应用 | |
Prudkin-Silva et al. | High molecular weight chitosan based particles for insulin encapsulation obtained via nanospray technology | |
CN109078184A (zh) | 负载双药纳米颗粒及其制备方法与应用 | |
Vorobei et al. | Preparation of hydroxypropylmethylcellulose microparticles using supercritical antisolvent precipitation | |
WO2018167179A1 (en) | Oil-free carotenoid composition | |
Jenita et al. | Formulation and optimization of albumin nanoparticles loaded ivabradine hydrochloride using response surface design | |
Rafiee et al. | Oral pioglitazone HCl-loaded solid lipid microparticles: Formulation design and bioactivity studies | |
CN114948880B (zh) | 一种咖啡酸苯乙酯纳米稳定缓释剂型的制备方法 | |
Gülbağ Pınar et al. | Development of cyclosporine A nanosuspension: cytotoxicity and permeability on Caco-2 cell lines | |
Kesharwani et al. | Bioavailability enhancement of repaglinide using nano lipid carrier: Preparation characterization and in vivo evaluation | |
Zhang et al. | Progress of Drug Nanocrystal Self-Stabilized Pickering Emulsions: Construction, Characteristics In Vitro, and Fate In Vivo |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |