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膜聯(lián)蛋白A2(ANXA2)等多因子檢測(cè)試劑盒(流式熒光法)

Multiplex Assay Kit for Annexin A2 (ANXA2) ,etc. by CBA (Cytometric Bead Array)

ANX-A2; ANX2L4; CAL1H; LIP2; LPC2; LPC2D; P36; PAP-IV; Protein I; Chromobindin-8; Calpactin-1 heavy chain; Lipocortin II; Placental anticoagulant protein IV

  • 膜聯(lián)蛋白A2(ANXA2)等多因子檢測(cè)試劑盒(流式熒光法)產(chǎn)品包裝(模擬)
  • 膜聯(lián)蛋白A2(ANXA2)等多因子檢測(cè)試劑盒(流式熒光法)產(chǎn)品包裝(模擬)
  • Certificate通過(guò)ISO 9001、ISO 13485質(zhì)量體系認(rèn)證

特異性

本試劑盒用于檢測(cè)膜聯(lián)蛋白A2(ANXA2)等多因子檢測(cè)試劑盒(流式熒光法),經(jīng)檢測(cè)與其它相似物質(zhì)無(wú)明顯交叉反應(yīng)。
由于受到技術(shù)及樣本來(lái)源的限制,不可能完成對(duì)所有相關(guān)或相似物質(zhì)交叉反應(yīng)檢測(cè),因此本試劑盒有可能與未經(jīng)檢測(cè)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膜聯(lián)蛋白A2(ANXA2)等多因子檢測(cè)試劑盒(流式熒光法)(加標(biāo)樣品),重復(fù)測(cè)定并計(jì)算其均值,回收率為測(cè)定值與理論值的比率。

樣本回收率范圍(%)平均回收率(%)
serum(n=5)90-10496
EDTA plasma(n=5)97-105102
heparin plasma(n=5)91-10295

精密度

精密度用樣品測(cè)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(duì)低、中、高值定值樣本進(jìn)行定量檢測(cè),每份樣本連續(xù)測(cè)定20 次,分別計(jì)算不同濃度樣本的平均值及SD值。
批間差:選取3個(gè)不同批次的試劑盒分別對(duì)低、中、高值定值樣本進(jìn)行定量測(cè)定,每個(gè)樣本使用同一試劑盒重復(fù)測(cè)定8次,分別計(jì)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)加入適量的膜聯(lián)蛋白A2(ANXA2)等多因子檢測(cè)試劑盒(流式熒光法),并倍比稀釋成1:2,1:4,1:8,1:16的待測(cè)樣本,線性范圍即為稀釋后樣本中膜聯(lián)蛋白A2(ANXA2)等多因子檢測(cè)試劑盒(流式熒光法)含量的測(cè)定值與理論值的比率。

樣本1:21:41:81:16
serum(n=5)78-98%95-104%93-103%93-102%
EDTA plasma(n=5)92-105%89-101%95-102%88-98%
heparin plasma(n=5)84-96%87-95%86-103%79-101%

穩(wěn)定性

經(jīng)測(cè)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(duì)試劑盒破壞前后檢測(cè)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(lái)進(jìn)行操作可減少人為誤差。

實(shí)驗(yàn)流程

1、向?qū)嶒?yàn)板每孔內(nèi)加入200μL分析緩沖液以預(yù)濕;
2、實(shí)驗(yàn)前標(biāo)準(zhǔn)品、試劑及樣本準(zhǔn)備;
3、加樣(標(biāo)準(zhǔn)品、樣本、磁珠),標(biāo)準(zhǔn)品或樣本100μL及磁珠10μL,25°C酶標(biāo)板振蕩器孵育2小時(shí);
4、磁吸甩干,加檢測(cè)溶液A 100μL,25°C酶標(biāo)板振蕩器孵育1小時(shí);
5、磁吸甩干,加檢測(cè)溶液B 100μL,25°C振動(dòng)孵育30分鐘;
6、磁吸洗板1次;
7、加鞘液100μL,旋渦震蕩10分鐘后讀數(shù)。

實(shí)驗(yàn)原理

將膜聯(lián)蛋白A2(ANXA2)等多因子檢測(cè)試劑盒(流式熒光法)抗體包被于磁性微球表面,制成固相載體,向微孔中分別加入標(biāo)準(zhǔn)品或標(biāo)本以及磁珠,其中的膜聯(lián)蛋白A2(ANXA2)等多因子檢測(cè)試劑盒(流式熒光法)與連接于固相載體上的抗體結(jié)合,然后加入生物素化的膜聯(lián)蛋白A2(ANXA2)等多因子檢測(cè)試劑盒(流式熒光法)抗體,加入PE標(biāo)記的親和素,用流式細(xì)胞儀讀數(shù)。MFI值和樣品中的膜聯(lián)蛋白A2(ANXA2)等多因子檢測(cè)試劑盒(流式熒光法)濃度呈正相關(guān)。

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參考文獻(xiàn)

雜志參考文獻(xiàn)
Journal of Cellular BiochemistrySubcellular proteome analysis unraveled annexin A2 related to immune liver fibrosis[PubMed: 20225235]
World Journal of GastroenterologyExpression characteristics and diagnostic value of annexin A2 in hepatocellular carcinoma[PubMed: PMC3491596]
Oncology LettersAnnexin A2 is not a good biomarker for hepatocellular carcinoma in cirrhosis[PubMed: PMC3742823]
IbrahimAnnexin A2 Versus Afp as An Efficient Diagnostic Serum Marker for Hepatocellular Carcinoma[Ghrnet: Source]
European Journal of Clinical Microbiology &amp; Infectious DiseasesSerum annexin A2 levels in acute brucellosis and brucellar spondylodiscitis[Pubmed:24853056]
Biomedicine &amp; PharmacotherapyCirculating annexin A2 as a biomarker in gastric cancer patients: Correlation with clinical variables[Pubmed:25661364]
Hepat MonSerum Levels of Annexin A2 as a Candidate Biomarker for Hepatic Fibrosis in Patients With Chronic Hepatitis B[PubMed: 26587036]
Tumour BiolUp-regulation of annexin A2 expression predicates advanced clinicopathological features and poor prognosis in hepatocellular carcinoma[PubMed: 26109000]
Biomed PharmacotherCirculating[PubMed: 25661364]
Tumour BiolEvaluation of annexin A2 and as potential biomarkers for hepatocellular carcinoma[PubMed: 26189841]
Eur J Clin InvestStairs instead of elevators at the workplace decreases PCSK9 levels in a healthy population[PubMed: 26081791]
Journal of Oral and Maxillofacial SurgerySerum?Annexin?A2?Level?Is?Associated?With?Diagnosis?and?Prognosis?in?Patients?With?OralSquamous?Cell?Carcinoma.[pubmed:27889534]
Pregnancy HypertensAssessment of annexin A5 and annexin A2 levels as biomarkers for pre-eclampsia: A pilot study.[pubmed:28501283]
Mol Nutr Food Res.Epigallocatechin gallate induces an up-regulation of LDL receptor accompanied by a reduction of PCSK9 via the annexin A2-independent pathway in HepG2 cells.[pubmed:28181408]
Archives of Gynecology and ObstetricsExpression of annexin A2 in adenomyosis and dysmenorrhea[Pubmed: 31183557]
CancersExtracellular Vesicles-Based Biomarkers Represent a Promising Liquid Biopsy in Endometrial Cancer[Pubmed: 31842290]
PLASMA BIOMARKER FOR OVARIAN CANCER[]
DiagnosticsDiagnostic Value of Plasma Annexin A2 in Early-Stage High-Grade Serous Ovarian Cancer. Diagnostics 2021, 11, 69[33406648]
ADVANCED RESEARCHESSearch for Effective Serum Tumor Markers for Early Diagnosis of Hepatocellular Carcinoma Associated with Hepatitis C[]
Cancer Cell InternationalBufalin Induced Mitochondrial Dysfunction Promotes Apoptosis of Glioma Cells by Regulating Annexin A2 and DRP1 Proteins[]
Cancer Cell IntBufalin induces mitochondrial dysfunction and promotes apoptosis of glioma cells by regulating Annexin A2 and DRP1 protein expression[34376212]