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環(huán)加氧酶2(COX 2)檢測(cè)試劑盒(酶聯(lián)免疫吸附試驗(yàn)法)

ELISA Kit for Cyclooxygenase-2 (COX 2)

PGG/HS; PGHS2; PHS2; HCox2; PTGS2; Prostaglandin Endoperoxide Synthase 2; Prostaglandin G/H Synthase And Cyclooxygenase; Prostaglandin H2 synthase 2

  • 環(huán)加氧酶2(COX 2)檢測(cè)試劑盒(酶聯(lián)免疫吸附試驗(yàn)法) 產(chǎn)品包裝(模擬)
  • 環(huán)加氧酶2(COX 2)檢測(cè)試劑盒(酶聯(lián)免疫吸附試驗(yàn)法) 產(chǎn)品包裝(模擬)
  • 環(huán)加氧酶2(COX 2)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
  • SEA699Ra.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(cè)環(huán)加氧酶2(COX 2),經(jīng)檢測(cè)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(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環(huán)加氧酶2(COX 2)(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) 93-101 96
EDTA plasma(n=5) 96-103 101
heparin plasma(n=5) 83-99 87

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)加入適量的環(huán)加氧酶2(COX 2),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環(huán)加氧酶2(COX 2)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) 93-101% 93-102% 98-105% 89-101%
EDTA plasma(n=5) 99-105% 78-90% 80-98% 78-102%
heparin plasma(n=5) 90-99% 83-97% 83-99% 78-104%

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

將環(huán)加氧酶2(COX 2)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,其中的環(huán)加氧酶2(COX 2)與連接于固相載體上的抗體結(jié)合,然后加入生物素化的環(huán)加氧酶2(COX 2)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環(huán)加氧酶2(COX 2)呈正相關(guān)。用酶標(biāo)儀在450nm波長下測(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:Rattus norvegicus (Rat,大鼠) 應(yīng)用(僅供研究使用,不用于臨床診斷!)
RPA699Ra01 環(huán)加氧酶2(COX 2)重組蛋白 Positive Control; Immunogen; SDS-PAGE; WB.
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SEA699Ra 環(huán)加氧酶2(COX 2)檢測(cè)試劑盒(酶聯(lián)免疫吸附試驗(yàn)法) Enzyme-linked immunosorbent assay for Antigen Detection.
LMA699Ra 環(huán)加氧酶2(COX 2)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)
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Skin Cancer - MedlinePlus Health Information Molecular mechanisms underlying chemopreventive activities of glycyrrhizic acid against UVB-radiation-induced carcinogenesis in SKH-1 hairless mouse epidermis [PubMed: 21545294]
Evidence-Based Complementary and Alternative Medicine Curcumin Protects against UVB-Induced Skin Cancers in SKH-1 Hairless Mouse: Analysis of Early Molecular Markers in Carcinogenesis [PubMed: 22888366]
Integrative Cancer Therapies Decalepis hamiltonii inhibits tumor progression and metastasis by regulating the inflammatory mediators and nuclear factor κB subunits [Pubmed: 24013642]
Journal of ethnopharmacology Multitargeted protective effect of Abacopteris penangiana against carrageenan-induced chronic prostatitis in rats. [Pubmed: 24211397]
Int J Clin Exp Pathol Relationship between epidermal growth factor receptor (EGFR) mutation and serum cyclooxygenase-2 Level, and the synergistic effect of celecoxib and gefitinib on EGFR expression in non-small cell lung cancer cells [PubMed: 26464643]
Int J Clin Exp Pathol Monitoring of cyclooxygenase-2 levels can predict EGFR mutations and the efficacy of EGFR-TKI in patients with lung adenocarcinoma [PubMed: 26191267]
Journal of Biomechanics The shear wave elastic modulus and the increased nuclear factor kappa B(NF-kB/p65) and cyclooxygenase-2 (COX-2) expression in the area of myofascial trigger points activated in a rat model by blunt trauma to the vastus medialis [pubmed:29137729]
Journal of Global Pharma Technology Inflammatory Response of Annona Muricata Linn Leaves Extract in Colorectal Cancer Patients [NCT02439580]
International?Journal?of?Molecular?Sciences High Expression of IL-1RI and EP2 Receptors in the IL-1β/COX-2 Pathway, and a New Alternative to Non-Steroidal Drugs—Osthole in Inhibition COX-2 [Pubmed: 30620999]
International Immunopharmacology A novel concept of immunological and allergy interactions in Autism Spectrum Disorders: Molecular, anti-inflammatory effect of osthole [Pubmed: 30953868]
Reports of Biochemistry & Molecular Biology Evaluation of Serum Cyclooxygenase, Hepcidin Levels in Acute Renal Injury (AKI) Patients Following Cardiac Catheterization []
J Ethnopharmacol Isolation and characterization of anti-inflammatory and anti-proliferative compound, for B-cell Non-Hodgkin lymphoma, from Nyctanthes arbor-tristis Linn. [Pubmed:35398498]
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