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血管緊張素轉(zhuǎn)化酶2(ACE2)檢測(cè)試劑盒(酶聯(lián)免疫吸附試驗(yàn)法)

ELISA Kit for Angiotensin I Converting Enzyme 2 (ACE2)

ACEH; ACEII; ACE-II; Peptidyl-Dipeptidase A; ACE-related carboxypeptidase; Angiotensin-converting enzyme homolog; Metalloprotease MPROT15

  • 血管緊張素轉(zhuǎn)化酶2(ACE2)檢測(cè)試劑盒(酶聯(lián)免疫吸附試驗(yàn)法)產(chǎn)品包裝(模擬)
  • 血管緊張素轉(zhuǎn)化酶2(ACE2)檢測(cè)試劑盒(酶聯(lián)免疫吸附試驗(yàn)法)產(chǎn)品包裝(模擬)
  • 血管緊張素轉(zhuǎn)化酶2(ACE2)檢測(cè)試劑盒(酶聯(lián)免疫吸附試驗(yàn)法)實(shí)驗(yàn)結(jié)果圖
  • SEB886Mu.jpg標(biāo)準(zhǔn)曲線(xiàn)圖
  • 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)血管緊張素轉(zhuǎn)化酶2(ACE2),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血管緊張素轉(zhuǎn)化酶2(ACE2)(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)81-8985
EDTA plasma(n=5)87-9591
heparin plasma(n=5)80-9786

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)加入適量的血管緊張素轉(zhuǎn)化酶2(ACE2),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血管緊張素轉(zhuǎn)化酶2(ACE2)含量的測(cè)定值與理論值的比率。

樣本1:21:41:81:16
serum(n=5)80-99%90-99%90-104%83-92%
EDTA plasma(n=5)85-103%79-92%96-105%82-102%
heparin plasma(n=5)89-103%78-88%79-101%79-102%

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、試劑及樣本的準(zhǔn)備;
2. 加樣(標(biāo)準(zhǔn)品及樣本)100µL,37°C孵育1小時(shí);
3. 吸棄,加檢測(cè)溶液A100µL,37°C孵育1小時(shí);
4. 洗板3次;
5. 加檢測(cè)溶液B100µL,37°C孵育30分鐘;
6. 洗板5次;
7. 加TMB底物90µL,37°C孵育10-20分鐘;
8. 加終止液50µL,立即450nm讀數(shù)。

實(shí)驗(yàn)原理

將血管緊張素轉(zhuǎn)化酶2(ACE2)抗體包被于96孔微孔板中,制成固相載體,向微孔中分別加入標(biāo)準(zhǔn)品或標(biāo)本,其中的血管緊張素轉(zhuǎn)化酶2(ACE2)與連接于固相載體上的抗體結(jié)合,然后加入生物素化的血管緊張素轉(zhuǎn)化酶2(ACE2)抗體,將未結(jié)合的生物素化抗體洗凈后,加入HRP標(biāo)記的親和素,再次徹底洗滌后加入TMB底物顯色。TMB在過(guò)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。顏色的深淺和樣品中的血管緊張素轉(zhuǎn)化酶2(ACE2)呈正相關(guān)。用酶標(biāo)儀在450nm波長(zhǎng)下測(cè)定吸光度(O.D.值),計(jì)算樣品濃度。

相關(guān)產(chǎn)品

編號(hào)適用物種:Mus musculus (Mouse,小鼠)應(yīng)用(僅供研究使用,不用于臨床診斷!)
EPB886Mu61血管緊張素轉(zhuǎn)化酶2(ACE2)真核蛋白Positive Control; Immunogen; SDS-PAGE; WB.
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LMB886Mu血管緊張素轉(zhuǎn)化酶2(ACE2)等多因子檢測(cè)試劑盒(流式熒光發(fā)光法)FLIA Kit for Antigen Detection.

參考文獻(xiàn)

雜志參考文獻(xiàn)
Nature MedicineAngiotensin-Converting Enzyme 2 Overexpression Remarkably Ameliorated Glomerular Injury in a Rat Model of Diabetic Nephropathy: A Comparison with ACE Inhibition[MolMed: 10_11_liu]
Journal of Cancer TherapyPlasma Levels of Angiotensin-Converting Enzymes 1 and 2 and AGTR2 (T1247G and A5235G) Gene Polymorphisms Are Associated to Breast Cancer Progression.[Scirp: Source]
Reprod Toxicol.?ACE2 activation by xanthenone prevents leptin-induced increases in blood pressure and proteinuria during pregnancy in Sprague-Dawley rats[Pubmed:25205467]
Intensive Care Medicine Experimental Angiotensin converting enzymes in patients with acute respiratory distress syndrome[Content: 3]
Journal of Chromatography AApplication of a new procedure for liquid chromatography/mass spectrometry profiling of plasma amino acid-related metabolites and untargeted shotgun proteomics to identify mechanisms and biomarkers of calcific aortic stenosis[S0021967317311858]
Journal of Clinical Pharmacy and TherapeuticsRelationship between genetic variants of ACE2 gene and circulating levels of ACE2 and its metabolites.[pubmed:28895159]
Innate?Immunity?Lipoxin A attenuates LPS-induced acute lung injury via activation of the ACE2-Ang-(1-7)-Mas axis[Pubmed:29969931]
Journal of?Surgical?ResearchImpact of angiotensin-converting enzyme 2 levels on postoperative pneumonia after esophagectomy[Pubmed:29506841]
canadian journal of physiology and pharmacologyCould cardioprotective effect of ACE2 activator “diminazene aceturate” is more potent than ACE inhibitor “Enalapril” on acute myocardial infarction in rats?[Pubmed: 30840489]
Intensive Care MedicineAngiotensin-converting enzymes in acute respiratory distress syndrome[]
BioMed Research InternationalAVE 0991 Attenuates Pyroptosis and Liver Damage after Heatstroke by Inhibiting the ROS-NLRP3 Inflammatory Signalling Pathway[]
Heart?and?vesselsRelationship between circulating levels of angiotensin-converting enzyme 2-angiotensin-(1–7)-MAS axis and coronary heart disease[Pubmed: 31359146]
MedicineAlteration and association between serum ACE2/angiotensin (1-7)/Mas axis and oxidative stress in chronic kidney disease: A pilot study[Pubmed: 32756181]
American Journal of Respiratory and Critical Care MedicineEquilibrium Angiotensin Metabolite Profiling in Patients with Acute Respiratory Distress Syndrome Indicates Angiotensin Converting Enzyme Inhibition[Pubmed: 32628511]
Clinical Research in CardiologyDeterminants of soluble angiotensin-converting enzyme 2 concentrations in adult patients with complex congenital heart disease[33280062]
Clinical & Translational ImmunologyPattern of circulating SARS?\CoV?\2?\specific antibody?\secreting and memory B?\cell generation in patients with acute COVID?\19[33552508]
researchsquareNovel transgenic mice with Cre-dependent co-expression of GFP and human ACE2: a safe tool for study of COVID-19 pathogenesis[33855640]
VirusesDifferent Neutralization Sensitivity of SARS-CoV-2 Cell-to-Cell and Cell-Free Modes of Infection to Convalescent Sera[]
Sci RepImmunoreactivity of the SARS-CoV-2 entry proteins ACE-2 and TMPRSS-2 in murine models of hormonal manipulation, ageing, and cardiac injury[34907257]
European Journal of Clinical InvestigationAngiotensin‐converting enzyme 2 and Transmembrane protease serine 2 in female and male patients with end‐stage kidney disease[Pubmed:35366343]
MetabolitesRamipril Reduces Acylcarnitines and Distinctly Increases Angiotensin-Converting Enzyme 2 Expression in Lungs of Rats[Pubmed:35448480]