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

Multiplex Assay Kit for Annexin A2 (ANXA2) ,etc. by FLIA (Flow Luminescence Immunoassay)

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

(注:?jiǎn)未位鞙y(cè)多因子不超過(guò)8個(gè)指標(biāo) )

  • 膜聯(lián)蛋白A2(ANXA2)等多因子檢測(cè)試劑盒(流式熒光發(fā)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(流式熒光發(fā)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(流式熒光發(fā)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(流式熒光發(fā)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) 80-95 88
EDTA plasma(n=5) 85-99 94
heparin plasma(n=5) 84-101 93
sodium citrate plasma(n=5) 94-101 97

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(xiàn)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(流式熒光發(fā)光法),并倍比稀釋成1:2,1:4,1:8,1:16的待測(cè)樣本,線(xiàn)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(流式熒光發(fā)光法)含量的測(cè)定值與理論值的比率。

樣本 1:2 1:4 1:8 1:16
serum(n=5) 91-102% 98-105% 80-90% 80-101%
EDTA plasma(n=5) 80-101% 78-96% 97-104% 79-96%
heparin plasma(n=5) 83-99% 86-95% 82-92% 96-104%
sodium citrate plasma(n=5) 80-92% 89-103% 93-105% 90-98%

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. 實(shí)驗(yàn)前標(biāo)準(zhǔn)品、試劑及樣本準(zhǔn)備;
2. 加樣(標(biāo)準(zhǔn)品、樣本、磁珠)標(biāo)準(zhǔn)品或樣本100μL及磁珠10μL,
    37°C酶標(biāo)板振蕩器孵育90分鐘;
3. 磁吸甩干,加檢測(cè)溶液A100μL,37°C酶標(biāo)板振蕩器孵育60分鐘;
4. 磁吸洗板3次;
5. 加檢測(cè)溶液B100μL,37°C振動(dòng)孵育30分鐘;
6. 磁吸洗板3次;
7. 加鞘液100μL,旋渦震蕩2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(流式熒光發(fā)光法)抗體包被于磁珠,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(流式熒光發(fā)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(流式熒光發(fā)光法)抗體,將未結(jié)合的生物素化抗體洗凈后,加入PE標(biāo)記的親和素,再次徹底洗滌后即可上機(jī)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(流式熒光發(fā)光法)呈正相關(guān)。

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參考文獻(xiàn)

雜志 參考文獻(xiàn)
Journal of Cellular Biochemistry Subcellular proteome analysis unraveled annexin A2 related to immune liver fibrosis [PubMed: 20225235]
World Journal of Gastroenterology Expression characteristics and diagnostic value of annexin A2 in hepatocellular carcinoma [PubMed: PMC3491596]
Oncology Letters Annexin A2 is not a good biomarker for hepatocellular carcinoma in cirrhosis [PubMed: PMC3742823]
Ibrahim Annexin A2 Versus Afp as An Efficient Diagnostic Serum Marker for Hepatocellular Carcinoma [Ghrnet: Source]
European Journal of Clinical Microbiology &amp; Infectious Diseases Serum annexin A2 levels in acute brucellosis and brucellar spondylodiscitis [Pubmed:24853056]
Biomedicine &amp; Pharmacotherapy Circulating annexin A2 as a biomarker in gastric cancer patients: Correlation with clinical variables [Pubmed:25661364]
Hepat Mon Serum Levels of Annexin A2 as a Candidate Biomarker for Hepatic Fibrosis in Patients With Chronic Hepatitis B [PubMed: 26587036]
Tumour Biol Up-regulation of annexin A2 expression predicates advanced clinicopathological features and poor prognosis in hepatocellular carcinoma [PubMed: 26109000]
Biomed Pharmacother Circulating [PubMed: 25661364]
Tumour Biol Evaluation of annexin A2 and as potential biomarkers for hepatocellular carcinoma [PubMed: 26189841]
Eur J Clin Invest Stairs instead of elevators at the workplace decreases PCSK9 levels in a healthy population [PubMed: 26081791]
Journal of Oral and Maxillofacial Surgery Serum?Annexin?A2?Level?Is?Associated?With?Diagnosis?and?Prognosis?in?Patients?With?OralSquamous?Cell?Carcinoma. [pubmed:27889534]
Pregnancy Hypertens Assessment 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 Obstetrics Expression of annexin A2 in adenomyosis and dysmenorrhea [Pubmed: 31183557]
Cancers Extracellular Vesicles-Based Biomarkers Represent a Promising Liquid Biopsy in Endometrial Cancer [Pubmed: 31842290]
PLASMA BIOMARKER FOR OVARIAN CANCER []
Diagnostics Diagnostic Value of Plasma Annexin A2 in Early-Stage High-Grade Serous Ovarian Cancer. Diagnostics 2021, 11, 69 [33406648]
ADVANCED RESEARCHES Search for Effective Serum Tumor Markers for Early Diagnosis of Hepatocellular Carcinoma Associated with Hepatitis C []
Cancer Cell International Bufalin Induced Mitochondrial Dysfunction Promotes Apoptosis of Glioma Cells by Regulating Annexin A2 and DRP1 Proteins []
Cancer Cell Int Bufalin induces mitochondrial dysfunction and promotes apoptosis of glioma cells by regulating Annexin A2 and DRP1 protein expression [34376212]
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