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軸突生長(zhǎng)誘向因子1(Ntn1)檢測(cè)試劑盒(酶聯(lián)免疫吸附試驗(yàn)法)

ELISA Kit for Netrin 1 (Ntn1)

NTN1L; Epididymis tissue protein Li 131P

  • 軸突生長(zhǎng)誘向因子1(Ntn1)檢測(cè)試劑盒(酶聯(lián)免疫吸附試驗(yàn)法)產(chǎn)品包裝(模擬)
  • 軸突生長(zhǎng)誘向因子1(Ntn1)檢測(cè)試劑盒(酶聯(lián)免疫吸附試驗(yàn)法)產(chǎn)品包裝(模擬)
  • 軸突生長(zhǎng)誘向因子1(Ntn1)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
  • SEB827Ga.jpg標(biāo)準(zhǔn)曲線圖
  • 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)軸突生長(zhǎng)誘向因子1(Ntn1),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軸突生長(zhǎng)誘向因子1(Ntn1)(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)80-9483
EDTA plasma(n=5)91-10297
heparin plasma(n=5)81-9987

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)加入適量的軸突生長(zhǎng)誘向因子1(Ntn1),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軸突生長(zhǎng)誘向因子1(Ntn1)含量的測(cè)定值與理論值的比率。

樣本1:21:41:81:16
serum(n=5)89-105%99-105%96-105%98-105%
EDTA plasma(n=5)93-101%88-105%96-105%78-92%
heparin plasma(n=5)92-104%89-97%79-101%88-104%

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

將軸突生長(zhǎng)誘向因子1(Ntn1)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,其中的軸突生長(zhǎng)誘向因子1(Ntn1)與連接于固相載體上的抗體結(jié)合,然后加入生物素化的軸突生長(zhǎng)誘向因子1(Ntn1)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軸突生長(zhǎng)誘向因子1(Ntn1)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。

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編號(hào)適用物種:Chicken (Gallus,雞)應(yīng)用(僅供研究使用,不用于臨床診斷!)
RPB827Ga01軸突生長(zhǎng)誘向因子1(Ntn1)重組蛋白Positive Control; Immunogen; SDS-PAGE; WB.
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SEB827Ga軸突生長(zhǎng)誘向因子1(Ntn1)檢測(cè)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)
Transplantation ProceedingsNetrin-1: A Novel Universal Biomarker of Human Kidney Injury[PubMed: 20620466]
BiomarkersPlasma netrin-1 is a diagnostic biomarker of human cancers[PubMed: PMC3143477]
Journal of Maternal-Fetal and Neonatal MedicineCord blood netrin-1 and -4 concentrations in term pregnancies with normal, restricted and increased fetal growth[Informahealthcare: Source]
4Netrin-1 promotes adipose tissue macrophage retention and insulin resistance in obesity[Pubmed:24584118]
J Matern?Fetal?Neonatal Med.?Cord blood netrin-1 and-4 concentrations in term pregnancies with normal, restricted and increased fetal growth[Pubmed:24716747]
Renal failure.Urinary netrin-1 and KIM-1 as early biomarkers for septic acute kidney injury[Pubmed:25154466]
Stem Cell Research & TherapyNetrin-1 acts as a non-canonical angiogenic factor produced by human Wharton’s jelly mesenchymal stem cells (WJ-MSC)[articles:10.1186]
Oncotarget The effect of aspirin on circulating netrin-1 levels in humans is dependent on the inflammatory status of the vascular endothelium.[pubmed:29156815]
Frontiers in?Cellular?NeuroscienceNeuroprotection Exerted by Netrin-1 and Kinesin Motor KIF1A in Secondary Brain Injury following Experimental Intracerebral Hemorrhage in Rats[Pubmed:29375318]
Scientific ReportsNetrin-1 promotes diabetic corneal wound healing through molecular mechanisms mediated via the adenosine 2B receptor[Pubmed:29662125]
Family Practice and Palliative CareRelationship of serum netrin-1 levels with breast masses[Doi: 10.22391/fppc.467700]
JOURNAL OF BIOLOGICAL CHEMISTRYRole of microRNA in CB1 antagonist-mediated regulation of adipose tissue macrophage polarization and chemotaxis during diet-induced obesity[Pubmed: 30910812]
International Journal of Molecular?SciencesDownregulation of the Netrin-1 Receptor UNC5b Underlies Increased Placental Angiogenesis in Human Gestational Diabetes Mellitus[Pubmed: 30897795]
Cancer BiomarkSerum netrin-1 as a biomarker for colorectal cancer detection[Pubmed: 32474463]
Níveis Elevados de Netrina-1 e IL-1β em Mulheres Idosas com SCA: Pior Prognóstico no Acompanhamento de Dois Anos[]
Tuberk ToraksAssociation of plasma netrin-1 level with inflammatory balance and comorbidities in patients with acute exacerbation of COPD[33853303]
Adv Healthc MaterConductive Hydrogel Conduits with Growth Factor Gradients for Peripheral Nerve Repair in Diabetics with Non‐suture Tape[Pubmed:35670309]