载脂蛋白E(APOE)检测试剂盒(酶联免疫吸附试验法)
ELISA Kit for Apolipoprotein E (APOE)
Apo-E; AD2; Apoprotein; Alzheimer Disease 2(E4-Associated,Late Onset
- 编号CEA704Rb
- 物种Oryctolagus cuniculus (Rabbit,兔) 相同的名称,不同的物种。
- 实验方法竞争抑制
- 反应时长2h
- 检测范围493.8-40,000pg/mL
- 灵敏度最小可检测剂量小于等于182.5pg/mL.
- 样本类型Serum, plasma and other biological fluids
- 下载 英文说明书 中文说明书
- 规格 48T96T 96T*5 96T*10 96T*100
- 价格 ¥ 2873 ¥ 4104 ¥ 18468 ¥ 34884 ¥ 287280
- 欲了解实际交易价格和更多情况,请与当地经销商联系!
特异性
本试剂盒用于检测载脂蛋白E(APOE),经检测与其它相似物质无明显交叉反应。
由于受到技术及样本来源的限制,不可能完成对所有相关或相似物质交叉反应检测,因此本试剂盒有可能与未经检测的其它物质有交叉反应。
回收率
分别于定值血清及血浆样本中加入一定量的载脂蛋白E(APOE)(加标样品),重复测定并计算其均值,回收率为测定值与理论值的比率。
样本 | 回收率范围(%) | 平均回收率(%) |
serum(n=5) | 79-101 | 83 |
EDTA plasma(n=5) | 81-90 | 86 |
heparin plasma(n=5) | 86-101 | 97 |
精密度
精密度用样品测定值的变异系数CV表示。CV(%) = SD/mean×100
批内差:取同批次试剂盒对低、中、高值定值样本进行定量检测,每份样本连续测定20 次,分别计算不同浓度样本的平均值及SD值。
批间差:选取3个不同批次的试剂盒分别对低、中、高值定值样本进行定量测定,每个样本使用同一试剂盒重复测定8次,分别计算不同浓度样本的平均值及SD值。
批内差: CV<10%
批间差: CV<12%
线性
在定值血清及血浆样本内加入适量的载脂蛋白E(APOE),并倍比稀释成1:2,1:4,1:8,1:16的待测样本,线性范围即为稀释后样本中载脂蛋白E(APOE)含量的测定值与理论值的比率。
样本 | 1:2 | 1:4 | 1:8 | 1:16 |
serum(n=5) | 86-93% | 78-101% | 82-102% | 96-104% |
EDTA plasma(n=5) | 89-96% | 99-105% | 80-104% | 90-97% |
heparin plasma(n=5) | 89-103% | 90-97% | 90-101% | 81-89% |
稳定性
经测定,试剂盒在有效期内按推荐温度保存,其活性降低率小于5%。
为减小外部因素对试剂盒破坏前后检测值的影响,实验室的环境条件需尽量保持一致,尤其是实验室内温度、湿度及温育条件。其次由同一实验员来进行操作可减少人为误差。
实验流程
1. 实验前标准品、试剂及样本的准备;
2. 加样(标准品及样本)50µL,
加入50µL检测液A(临用前配制);
37°C温育1小时。
3. 洗板3次;
4. 加检测溶液B100µL,37°C孵育30分钟;
5. 洗板5次;
6. 加TMB底物90µL,37°C孵育10-20分钟;
7. 加终止液50µL,立即450nm读数。
实验原理
本试剂盒应用竞争抑制酶联免疫分析法测定标本中待测物质水平。将载脂蛋白E(APOE)单克隆抗体包被微孔板,制成固相载 体,往包被抗体的微孔中同时加入生物素标记的抗原和待测抗原(标准品或样本),待测抗原与生物素标记抗原对特异性抗体进行竞争结合。温育后经洗涤去掉未结合物,然后加入HRP标记的亲和素,经过温育和彻底洗涤后加入底物TMB显色。TMB在过氧化物酶的催化下转化成蓝色,并在酸的作用下转化成最终的黄色。待测标本浓度越高,标记抗原和抗体的结合就越受到抑制,显色愈浅。显色的深浅与酶量呈正相关,而与样品中待测物质含量呈负相关。用酶标仪在450nm波长下测定吸光度(O.D.值),计算样品浓度。
增值服务
相关产品
编号 | 适用物种:Oryctolagus cuniculus (Rabbit,兔) | 应用(仅供研究使用,不用于临床诊断!) |
RPA704Rb01 | 载脂蛋白E(APOE)重组蛋白 | Positive Control; Immunogen; SDS-PAGE; WB. |
PAA704Rb51 | 载脂蛋白E(APOE)多克隆抗体 | WB; IHC; ICC; IP. |
MAA704Rb21 | 载脂蛋白E(APOE)单克隆抗体 | WB; IHC; ICC; IP. |
SEA704Rb | 载脂蛋白E(APOE)检测试剂盒(酶联免疫吸附试验法) | Enzyme-linked immunosorbent assay for Antigen Detection. |
CEA704Rb | 载脂蛋白E(APOE)检测试剂盒(酶联免疫吸附试验法) | Enzyme-linked immunosorbent assay for Antigen Detection. |
LMA704Rb | 载脂蛋白E(APOE)等多因子检测试剂盒(流式荧光发光法) | FLIA Kit for Antigen Detection. |
参考文献
杂志 | 参考文献 |
Seizure - European Journal of Epilepsy | Cerebrospinal fluid apolipoprotein E concentration decreases after seizure [Seizure: PIIS1059131109002441] |
Biochimica et Biophysica Acta | Hepatic lipase- and endothelial lipase-deficiency in mice promotes macrophage-to-feces RCT and HDL antioxidant properties [PubMed: 23328279 ] |
Medical Oncology | Expression and clinical significance of apolipoprotein E in pancreatic ductal adenocarcinoma [Pubmed: 23609192] |
Diabetes. | Adipocyte Atp-Binding Cassette G1 Promotes Triglyceride Storage, Fat Mass Growth And Human Obesity [Pubmed:25249572] |
renal failure | Frequencies of apolipoprotein E alleles in depressed patients undergoing hemodialysis – a case-control study [PubMed: 25707516] |
Biochim Biophys Acta | Culturing of HepG2 cells with human serum improve their functionality and suitability in studies of lipid metabolism [PubMed: 26515253] |
Diabetes | Adipocyte ATP-binding cassette G1 promotes triglyceride storage, fat mass growth, and human obesity [PubMed: 25249572] |
Scientific Reports | Adaptive immunity against gut microbiota enhances apoE-mediated immune regulation andreduces atherosclerosis and western-diet-related inflammation. [pubmed:27383250] |
Biochemical Pharmacology | Differential effects of apoE and apoJ mimetic peptides on the action of an anti-Aβ scFv in 3xTg-AD mice [Pubmed:30026023] |
Oncotarget | Deletion of plasma Phospholipid Transfer Protein (PLTP) increases microglial phagocytosis and reduces cerebral amyloid-β deposition in the J20 mouse … [Pubmed:29731975] |
Proteomics Clinical Applications | Comparative proteomics analysis of serum proteins in gestational diabetes during early and middle stages of pregnancy [Pubmed: 31162828] |
Nature Communications | Hepatic HuR modulates lipid homeostasis in response to high-fat diet [Pubmed: 32546794] |
VETERINARY PATHOLOGY | Pathology and Proteomics-Based Diagnosis of Localized Light-Chain Amyloidosis in Dogs and Cats [Pubmed: 32880234] |
Journal of Clinical Medicine | The Significance of Apolipoprotein E Measurement in the Screening of Fetal Down Syndrome [33321701] |
Cancer Cell Int | Discovery and validation of FBLN1 and ANT3 as potential biomarkers for early detection of cervical cancer [33602229] |
Nat Commun | GP73 is a TBC-domain Rab GTPase-activating protein contributing to the pathogenesis of non-alcoholic fatty liver disease without obesity [34853313] |
Talanta | Iridium nanoclusters as high sensitive-tunable elemental labels for immunoassays: Determination of IgE and APOE in aqueous humor by inductively coupled … [Pubmed:35378356] |
Analytica Chimica Acta | Gold nanoclusters as elemental label for the sequential quantification of apolipoprotein E and metallothionein 2A in individual human cells of the retinal … [Pubmed:35361429] |