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成纖維細(xì)胞生長(zhǎng)因子21(FGF21)等多因子檢測(cè)試劑盒(流式熒光發(fā)光法)

Multiplex Assay Kit for Fibroblast Growth Factor 21 (FGF21) ,etc. by FLIA (Flow Luminescence Immunoassay)

(注:?jiǎn)未位鞙y(cè)多因子不超過8個(gè)指標(biāo) )

  • 成纖維細(xì)胞生長(zhǎng)因子21(FGF21)等多因子檢測(cè)試劑盒(流式熒光發(fā)光法)產(chǎn)品包裝(模擬)
  • 成纖維細(xì)胞生長(zhǎng)因子21(FGF21)等多因子檢測(cè)試劑盒(流式熒光發(fā)光法)產(chǎn)品包裝(模擬)
  • 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)成纖維細(xì)胞生長(zhǎng)因子21(FGF21),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成纖維細(xì)胞生長(zhǎng)因子21(FGF21)(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)95-104101
EDTA plasma(n=5)85-9490
heparin plasma(n=5)84-10391
sodium citrate plasma(n=5)91-9996

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)加入適量的成纖維細(xì)胞生長(zhǎng)因子21(FGF21),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成纖維細(xì)胞生長(zhǎng)因子21(FGF21)含量的測(cè)定值與理論值的比率。

樣本1:21:41:81:16
serum(n=5)82-103%79-104%78-97%84-95%
EDTA plasma(n=5)98-105%79-104%92-99%95-105%
heparin plasma(n=5)89-98%98-105%82-94%93-103%
sodium citrate plasma(n=5)89-99%84-91%94-102%82-93%

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、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

將成纖維細(xì)胞生長(zhǎng)因子21(FGF21)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)和樣品中的成纖維細(xì)胞生長(zhǎng)因子21(FGF21)濃度呈負(fù)相關(guān)。

贈(zèng)品

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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!)
RPC918Mu02成纖維細(xì)胞生長(zhǎng)因子21(FGF21)重組蛋白Positive Control; Immunogen; SDS-PAGE; WB.
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參考文獻(xiàn)

雜志參考文獻(xiàn)
Lipids in Health and DiseaseDietary moderately oxidized oil induces expression of fibroblast growth factor 21 in the liver of pigs[Lipidworld: source]
EndocrinologyOrphan nuclear receptor Nur77 mediates fasting-induced hepatic fibroblast growth factor 21 expression[Endocrine:Source]
Biochemical and Biophysical Research CommunicationsAlpha lipoic acid induces hepatic fibroblast growth factor 21 expression via up-regulation of CREBH[Pubmed:25449271]
Free Radic Biol MedSkeletal muscle increases FGF21 expression in mitochondrial disorders to compensate for energy metabolic insufficiency by activating the mTOR–YY1–PGC1α pathway[PubMed: 25843656]
Journal of diabetes and its complicationsAssociations between FGF21, osteonectin and bone turnover markers in type 2 diabetic patients with albuminuria.[pubmed:27916484]
American journal of the medical sciencesAssociation of Bone Metabolic Markers With Diabetic Retinopathy and Diabetic Macular Edema in Elderly Chinese Individuals With Type 2 Diabetes Mellitus[pubmed:29078839]
Frontiers in PhysiologyIleal Transposition Surgery Decreases Fat Mass and Improves Glucose Metabolism in Diabetic GK Rats: Possible Involvement of FGF21[Pubmed:29593555]
Некоторые аспекты транспортной системы метаболизма железа в зависимости от степени синдрома перегрузки железом у детей с хроническим?…[]
Physiol ResFibroblast growth factor 21 (FGF21) in children and adolescents with chronic kidney disease.[Pubmed: 32469231]
Chinese Journal of Osteoporosis2 型糖尿病患者血清FGF21, 骨連結(jié)蛋白和骨轉(zhuǎn)換指標(biāo)的相關(guān)性研究.[]
Sci RepIleal transposition helps to regulate plasma hepatokine levels in obese Zucker (Crl: ZUC (ORL)-Lepr fa) rats[33833309]
NutrientsThe Speed of Ingestion of a Sugary Beverage Has an Effect on the Acute Metabolic Response to Fructose[]
Medicine (Baltimore)Association of serum fibroblast growth factor 21 with kidney function in a population-based Chinese cohort[34918690]
Annals of Agricultural and Environmental MedicineOxidative stress-induced growth inhibitor 1 in alcohol-induced liver cirrhosis[34969228]
J Magn Reson ImagingWater Specific MRI T1 Mapping for Evaluating Liver Inflammation Activity Grades in Rats With Methionine‐Choline‐Deficient Diet‐Induced Nonalcoholic Fatty Liver?…[Pubmed:35212074]
Lab InvestFibroblast growth factor 21, a stress regulator, inhibits Drp1 activation to alleviate skeletal muscle ischemia/reperfusion injury[Pubmed:35488034]
Molecular Biology ReportsUmbilical cord-derived mesenchymal stem cell conditioned medium reverses neuronal oxidative injury by inhibition of TRPM2 activation and the JNK signaling?…[Pubmed:35585377]
High Circulating Fibroblast Growth Factor-21 Levels as a Prognostic Marker in Fatty Pancreas Patients[]