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載脂蛋白E(APOE)檢測試劑盒(酶聯(lián)免疫吸附試驗(yàn)法)

ELISA Kit for Apolipoprotein E (APOE)

Apo-E; AD2; Apoprotein; Alzheimer Disease 2(E4-Associated,Late Onset

  • 載脂蛋白E(APOE)檢測試劑盒(酶聯(lián)免疫吸附試驗(yàn)法)產(chǎn)品包裝(模擬)
  • 載脂蛋白E(APOE)檢測試劑盒(酶聯(lián)免疫吸附試驗(yàn)法)產(chǎn)品包裝(模擬)
  • 載脂蛋白E(APOE)檢測試劑盒(酶聯(lián)免疫吸附試驗(yàn)法)實(shí)驗(yàn)結(jié)果圖
  • CEA704Rb.jpg標(biāo)準(zhǔn)曲線圖
  • Certificate通過ISO 9001、ISO 13485質(zhì)量體系認(rèn)證

特異性

本試劑盒用于檢測載脂蛋白E(APOE),經(jīng)檢測與其它相似物質(zhì)無明顯交叉反應(yīng)。
由于受到技術(shù)及樣本來源的限制,不可能完成對所有相關(guān)或相似物質(zhì)交叉反應(yīng)檢測,因此本試劑盒有可能與未經(jīng)檢測的其它物質(zhì)有交叉反應(yīng)。

回收率

分別于定值血清及血漿樣本中加入一定量的載脂蛋白E(APOE)(加標(biāo)樣品),重復(fù)測定并計算其均值,回收率為測定值與理論值的比率。

樣本回收率范圍(%)平均回收率(%)
serum(n=5)79-10183
EDTA plasma(n=5)81-9086
heparin plasma(n=5)86-10197

精密度

精密度用樣品測定值的變異系數(shù)CV表示。CV(%) = SD/mean×100
批內(nèi)差:取同批次試劑盒對低、中、高值定值樣本進(jìn)行定量檢測,每份樣本連續(xù)測定20 次,分別計算不同濃度樣本的平均值及SD值。
批間差:選取3個不同批次的試劑盒分別對低、中、高值定值樣本進(jìn)行定量測定,每個樣本使用同一試劑盒重復(fù)測定8次,分別計算不同濃度樣本的平均值及SD值。
批內(nèi)差: CV<10%
批間差: CV<12%

線性

在定值血清及血漿樣本內(nèi)加入適量的載脂蛋白E(APOE),并倍比稀釋成1:2,1:4,1:8,1:16的待測樣本,線性范圍即為稀釋后樣本中載脂蛋白E(APOE)含量的測定值與理論值的比率。

樣本1:21:41:81:16
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%

穩(wěn)定性

經(jīng)測定,試劑盒在有效期內(nèi)按推薦溫度保存,其活性降低率小于5%。
為減小外部因素對試劑盒破壞前后檢測值的影響,實(shí)驗(yàn)室的環(huán)境條件需盡量保持一致,尤其是實(shí)驗(yàn)室內(nèi)溫度、濕度及溫育條件。其次由同一實(shí)驗(yàn)員來進(jìn)行操作可減少人為誤差。

實(shí)驗(yàn)流程

1. 實(shí)驗(yàn)前標(biāo)準(zhǔn)品、試劑及樣本的準(zhǔn)備;
2. 加樣(標(biāo)準(zhǔn)品及樣本)50µL,
    加入50µL檢測液A(臨用前配制);
    37°C溫育1小時。
3. 洗板3次;
4. 加檢測溶液B100µL,37°C孵育30分鐘;
5. 洗板5次;
6. 加TMB底物90µL,37°C孵育10-20分鐘;
7. 加終止液50µL,立即450nm讀數(shù)。

實(shí)驗(yàn)原理

本試劑盒應(yīng)用競爭抑制酶聯(lián)免疫分析法測定標(biāo)本中待測物質(zhì)水平。將載脂蛋白E(APOE)單克隆抗體包被微孔板,制成固相載 體,往包被抗體的微孔中同時加入生物素標(biāo)記的抗原和待測抗原(標(biāo)準(zhǔn)品或樣本),待測抗原與生物素標(biāo)記抗原對特異性抗體進(jìn)行競爭結(jié)合。溫育后經(jīng)洗滌去掉未結(jié)合物,然后加入HRP標(biāo)記的親和素,經(jīng)過溫育和徹底洗滌后加入底物TMB顯色。TMB在過氧化物酶的催化下轉(zhuǎn)化成藍(lán)色,并在酸的作用下轉(zhuǎn)化成最終的黃色。待測標(biāo)本濃度越高,標(biāo)記抗原和抗體的結(jié)合就越受到抑制,顯色愈淺。顯色的深淺與酶量呈正相關(guān),而與樣品中待測物質(zhì)含量呈負(fù)相關(guān)。用酶標(biāo)儀在450nm波長下測定吸光度(O.D.值),計算樣品濃度。

相關(guān)產(chǎn)品

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RPA704Rb01載脂蛋白E(APOE)重組蛋白Positive Control; Immunogen; SDS-PAGE; WB.
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SEA704Rb載脂蛋白E(APOE)檢測試劑盒(酶聯(lián)免疫吸附試驗(yàn)法)Enzyme-linked immunosorbent assay for Antigen Detection.
CEA704Rb載脂蛋白E(APOE)檢測試劑盒(酶聯(lián)免疫吸附試驗(yàn)法)Enzyme-linked immunosorbent assay for Antigen Detection.
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參考文獻(xiàn)

雜志參考文獻(xiàn)
Seizure - European Journal of EpilepsyCerebrospinal fluid apolipoprotein E concentration decreases after seizure[Seizure: PIIS1059131109002441]
Biochimica et Biophysica ActaHepatic lipase- and endothelial lipase-deficiency in mice promotes macrophage-to-feces RCT and HDL antioxidant properties[PubMed: 23328279 ]
Medical OncologyExpression 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 failureFrequencies of apolipoprotein E alleles in depressed patients undergoing hemodialysis – a case-control study[PubMed: 25707516]
Biochim Biophys ActaCulturing of HepG2 cells with human serum improve their functionality and suitability in studies of lipid metabolism[PubMed: 26515253]
DiabetesAdipocyte ATP-binding cassette G1 promotes triglyceride storage, fat mass growth, and human obesity[PubMed: 25249572]
Scientific ReportsAdaptive?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]
OncotargetDeletion of plasma Phospholipid Transfer Protein (PLTP) increases microglial phagocytosis and reduces cerebral amyloid-β deposition in the J20 mouse?…[Pubmed:29731975]
Proteomics Clinical ApplicationsComparative proteomics analysis of serum proteins in gestational diabetes during early and middle stages of pregnancy[Pubmed: 31162828]
Nature CommunicationsHepatic HuR modulates lipid homeostasis in response to high-fat diet[Pubmed: 32546794]
VETERINARY PATHOLOGYPathology and Proteomics-Based Diagnosis of Localized Light-Chain Amyloidosis in Dogs and Cats[Pubmed: 32880234]
Journal of Clinical MedicineThe Significance of Apolipoprotein E Measurement in the Screening of Fetal Down Syndrome[33321701]
Cancer Cell IntDiscovery and validation of FBLN1 and ANT3 as potential biomarkers for early detection of cervical cancer[33602229]
Nat CommunGP73 is a TBC-domain Rab GTPase-activating protein contributing to the pathogenesis of non-alcoholic fatty liver disease without obesity[34853313]
TalantaIridium nanoclusters as high sensitive-tunable elemental labels for immunoassays: Determination of IgE and APOE in aqueous humor by inductively coupled?…[Pubmed:35378356]
Analytica Chimica ActaGold nanoclusters as elemental label for the sequential quantification of apolipoprotein E and metallothionein 2A in individual human cells of the retinal?…[Pubmed:35361429]