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YY肽(PYY)等多因子檢測(cè)試劑盒(流式熒光法)

Multiplex Assay Kit for Peptide YY (PYY) ,etc. by CBA (Cytometric Bead Array)

PYY1; Peptide tyrosine tyrosine

  • YY肽(PYY)等多因子檢測(cè)試劑盒(流式熒光法)產(chǎn)品包裝(模擬)
  • YY肽(PYY)等多因子檢測(cè)試劑盒(流式熒光法)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)YY肽(PYY)等多因子檢測(cè)試劑盒(流式熒光法),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YY肽(PYY)等多因子檢測(cè)試劑盒(流式熒光法)(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)93-10197
EDTA plasma(n=5)97-105101
heparin plasma(n=5)95-10398

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YY肽(PYY)等多因子檢測(cè)試劑盒(流式熒光法),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YY肽(PYY)等多因子檢測(cè)試劑盒(流式熒光法)含量的測(cè)定值與理論值的比率。

樣本1:21:41:81:16
serum(n=5)78-101%93-101%79-92%93-102%
EDTA plasma(n=5)80-101%90-104%97-105%88-97%
heparin plasma(n=5)80-95%79-90%95-103%91-99%

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、向?qū)嶒?yàn)板每孔內(nèi)加入200μL分析緩沖液以預(yù)濕;
2、實(shí)驗(yàn)前標(biāo)準(zhǔn)品、試劑及樣本準(zhǔn)備;
3、加樣(標(biāo)準(zhǔn)品、樣本、磁珠、檢測(cè)溶液A),標(biāo)準(zhǔn)品或樣本50μL,加檢測(cè)溶液A 50μL,及磁珠10μL,25°C酶標(biāo)板振蕩器孵育90分鐘;
4、磁吸甩干,加檢測(cè)溶液B 100μL,25°C振動(dòng)孵育30分鐘;
5、磁吸洗板1次;
6、加鞘液100μL,旋渦震蕩10分鐘后讀數(shù)。

實(shí)驗(yàn)原理

將YY肽(PYY)等多因子檢測(cè)試劑盒(流式熒光法)抗體包被于磁性微球表面,制成固相載體。在微孔中同時(shí)加入待測(cè)抗原(標(biāo)準(zhǔn)品或樣本)、生物素標(biāo)記的抗原和微球。待測(cè)抗原與生物素標(biāo)記抗原對(duì)特異性抗體進(jìn)行競(jìng)爭(zhēng)結(jié)合。加入PE標(biāo)記的鏈霉親和素,上機(jī)讀數(shù)。MFI值(Median Fluorescence Intensity)和樣品中的YY肽(PYY)等多因子檢測(cè)試劑盒(流式熒光法)濃度呈負(fù)相關(guān)。

贈(zèng)品

相關(guān)產(chǎn)品

編號(hào)適用物種:Sus scrofa; Porcine (Pig,豬)應(yīng)用(僅供研究使用,不用于臨床診斷!)
RPB067Po01YY肽(PYY)重組蛋白Positive Control; Immunogen; SDS-PAGE; WB.
CPB067Po21YY肽(PYY)卵白蛋白偶聯(lián)物Immunogen; SDS-PAGE; WB.
PAB067Po01YY肽(PYY)多克隆抗體WB; IHC; ICC; IP.
MAB067Po21YY肽(PYY)單克隆抗體WB; IHC; ICC; IP.
CEB067PoYY肽(PYY)檢測(cè)試劑盒(酶聯(lián)免疫吸附試驗(yàn)法)Enzyme-linked immunosorbent assay for Antigen Detection.
LMB067PoYY肽(PYY)等多因子檢測(cè)試劑盒(流式熒光發(fā)光法)FLIA Kit for Antigen Detection.
CMB067PoYY肽(PYY)等多因子檢測(cè)試劑盒(流式熒光法)FLIA Kit for Antigen Detection.

參考文獻(xiàn)

雜志參考文獻(xiàn)
International Journal of Sport StudiesThe Effects of Concurrent Resistance and Endurance Exercise on Hunger Feelings and PYY in Obese Men[Com:Source]
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Biomedical ReportsCalprotectin in serum and zonulin in serum and feces are elevated after introduction of a diet with lower carbohydrate content and higher fiber, fat and protein contents.[pubmed:28413639]
Acta DiabetologicaEffect of lifestyle improvement program on the biomarkersof adiposity, inflammation and gut hormones in overweight/obese Asian Indians with prediabetes[pubmed:28620678]
Biomedical ReportsCalprotectin in serum and zonulin in serum and feces are elevated after introduction of a diet with lower carbohydrate content and higher fiber, fat and protein contents[10.3892/br.2017.865]
Journal of Diabetes & MetabolismHigh Fiber Fat and Protein Contents Lead to Increased Satiety Reduced Sweet Cravings and Decreased Gastrointestinal Symptoms Independently of Anthropometric Hormonal and Metabolic Factors[10.4172/2155-6156.1000733?]
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The Journal of NutritionGrape Seed Proanthocyanidin Affects Lipid Metabolism via Changing Gut Microflora and Enhancing Propionate Production in Weaned Pigs[Pubmed: 31175811]
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