內(nèi)脂素(VF)檢測試劑盒(酶聯(lián)免疫吸附試驗法)
ELISA Kit for Visfatin (VF)
Nampt; NAmPRTase; PBEF; PBEF1; Pre-B-Cell Colony Enhancing Factor; Nicotinamide Phosphoribosyltransferase
- 編號SEA638Ra
- 物種Rattus norvegicus (Rat,大鼠) 相同的名稱,不同的物種。
- 實驗方法雙抗夾心
- 反應(yīng)時長3h
- 檢測范圍1.56-100ng/mL
- 靈敏度最小可檢測劑量小于等于0.61ng/mL.
- 樣本類型serum, plasma, tissue homogenates, cell lysates, cell culture supernates and other biological fluids
- 下載 英文說明書 中文說明書
- 規(guī)格 48T96T 96T*5 96T*10 96T*100
- 價格 ¥ 2873 ¥ 4104 ¥ 18468 ¥ 34884 ¥ 287280
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特異性
本試劑盒用于檢測內(nèi)脂素(VF),經(jīng)檢測與其它相似物質(zhì)無明顯交叉反應(yīng)。
由于受到技術(shù)及樣本來源的限制,不可能完成對所有相關(guān)或相似物質(zhì)交叉反應(yīng)檢測,因此本試劑盒有可能與未經(jīng)檢測的其它物質(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內(nèi)脂素(VF)(加標(biāo)樣品),重復(fù)測定并計算其均值,回收率為測定值與理論值的比率。
樣本 | 回收率范圍(%) | 平均回收率(%) |
serum(n=5) | 89-101 | 92 |
EDTA plasma(n=5) | 91-105 | 101 |
heparin plasma(n=5) | 85-94 | 89 |
精密度
精密度用樣品測定值的變異系數(shù)CV表示。CV(%) = SD/mean×100
批內(nèi)差:取同批次試劑盒對低、中、高值定值樣本進(jìn)行定量檢測,每份樣本連續(xù)測定20 次,分別計算不同濃度樣本的平均值及SD值。
批間差:選取3個不同批次的試劑盒分別對低、中、高值定值樣本進(jìn)行定量測定,每個樣本使用同一試劑盒重復(fù)測定8次,分別計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)加入適量的內(nèi)脂素(VF),并倍比稀釋成1:2,1:4,1:8,1:16的待測樣本,線性范圍即為稀釋后樣本中內(nèi)脂素(VF)含量的測定值與理論值的比率。
樣本 | 1:2 | 1:4 | 1:8 | 1:16 |
serum(n=5) | 96-103% | 94-102% | 89-101% | 79-96% |
EDTA plasma(n=5) | 85-99% | 96-103% | 98-105% | 89-97% |
heparin plasma(n=5) | 79-105% | 78-91% | 83-99% | 90-97% |
穩(wěn)定性
經(jīng)測定,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%。
為減小外部因素對試劑盒破壞前后檢測值的影響,實驗室的環(huán)境條件需盡量保持一致,尤其是實驗室內(nèi)溫度、濕度及溫育條件。其次由同一實驗員來進(jìn)行操作可減少人為誤差。
實驗流程
1. 實驗前標(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;
3. 吸棄,加檢測溶液A100µL,37°C孵育1小時;
4. 洗板3次;
5. 加檢測溶液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)。
實驗原理
將內(nèi)脂素(VF)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,其中的內(nèi)脂素(VF)與連接于固相載體上的抗體結(jié)合,然后加入生物素化的內(nèi)脂素(VF)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內(nèi)脂素(VF)呈正相關(guān)。用酶標(biāo)儀在450nm波長下測定吸光度(O.D.值),計算樣品濃度。
增值服務(wù)
相關(guān)產(chǎn)品
編號 | 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!) |
RPA638Ra01 | 內(nèi)脂素(VF)重組蛋白 | Positive Control; Immunogen; SDS-PAGE; WB. |
PAA638Ra01 | 內(nèi)脂素(VF)多克隆抗體 | WB; IHC; ICC; IP. |
LAA638Ra71 | 內(nèi)脂素(VF)多克隆抗體(生物素標(biāo)記) | WB; IHC; ICC. |
LAA638Ra81 | 內(nèi)脂素(VF)多克隆抗體(異硫氰酸熒光素標(biāo)記) | WB; IHC; ICC; IF. |
MAA638Ra21 | 內(nèi)脂素(VF)單克隆抗體 | WB; IHC; ICC; IP. |
SEA638Ra | 內(nèi)脂素(VF)檢測試劑盒(酶聯(lián)免疫吸附試驗法) | Enzyme-linked immunosorbent assay for Antigen Detection. |
CEA638Ra | 內(nèi)脂素(VF)檢測試劑盒(酶聯(lián)免疫吸附試驗法) | Enzyme-linked immunosorbent assay for Antigen Detection. |
LMA638Ra | 內(nèi)脂素(VF)等多因子檢測試劑盒(流式熒光發(fā)光法) | FLIA Kit for Antigen Detection. |
CGA638Ra01 | 內(nèi)脂素(VF)cDNA | PCR、蛋白表達(dá)等 |
參考文獻(xiàn)
雜志 | 參考文獻(xiàn) |
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Diabetes Research and Clinical Practice | The relationship between visfatin and HOMA-IR in hypertensive patients, and the effect of antihypertensive drugs on visfatin and HOMA-IR in hypertensive patients with insulin resistance [ScienceDirect: S0168822711002956] |
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Endocr J. | CTRP3 modulates the expression and secretion of adipokines in 3T3-L1 adipocytes [Pubmed:25168658] |
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Genome | Visfatin ?948G/T?and resistin ?420C/Gpolymorphisms in Egyptian type 2 diabetic patients with and without cardiovascular diseases [Nrcresearchpress:Source] |
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Alcoholism and Drug Addiction | Changes in concentration of visfatin during four weeks of inpatient treatment of alcohol dependent males [Science: Article] |
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Genome | Genetic Variations in Visfatin and Resistin Genes in Egyptian Type 2 Diabetic Patients With and Without Complications [PubMed: 25120107] |
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Nutrire | Resistin and visfatin concentrations are related to central obesity and inflammation in Brazilian children [10.1186:s41110-018-0060-7] |
DNA?and?Cell?Biology | Transcriptional Regulation of?NAMPT?Gene by Glycogen Synthase Kinase 3β in Goat Adipocytes [Pubmed: 30615481] |
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Biomarkers in Heart Failure and Associated Diseases | Adipokines as Biomarkers in Health and Disease [] |
Journal of Translational Medicine | Plasma concentration and expression of adipokines in epicardial and subcutaneous adipose tissue are associated with impaired left ventricular filling pattern [Pubmed: 31533725] |
clinical neurology and neurosurgery | Relationsh?p of spontaneous subarachnoid haemorrhage and cerebral aneurysm to serum Visfatin and Nesfatin-1 levels [Pubmed: 32311618] |
The Horizon of Medical Sciences | Effects of 10-Week Concurrent Training on Insulin Resistance and the Serum Levels of Vaspin and Visfatin in Overweight Females [] |
EUROPEAN JOURNAL OF LIPID SCIENCE AND TECHNOLOGY | Different Ratios of Corn and Coconut Oil Blends in High?\Fat Diets Influence Fat Deposition without Altering Metabolic Biomarkers in Male Rats [] |