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膠質(zhì)細胞系來源神經(jīng)營養(yǎng)因子(GDNF)等多因子檢測試劑盒(流式熒光法)

Multiplex Assay Kit for Glial Cell Line Derived Neurotrophic Factor (GDNF) ,etc. by CBA (Cytometric Bead Array)

ATF1; ATF2; HFB1-GDNF; Astrocyte-Derived Trophic Factor; Glial Derived Neurotrophic Factor

  • 膠質(zhì)細胞系來源神經(jīng)營養(yǎng)因子(GDNF)等多因子檢測試劑盒(流式熒光法)產(chǎn)品包裝(模擬)
  • 膠質(zhì)細胞系來源神經(jīng)營養(yǎng)因子(GDNF)等多因子檢測試劑盒(流式熒光法)產(chǎn)品包裝(模擬)
  • Certificate通過ISO 9001、ISO 13485質(zhì)量體系認證

特異性

本試劑盒用于檢測膠質(zhì)細胞系來源神經(jīng)營養(yǎng)因子(GDNF)等多因子檢測試劑盒(流式熒光法),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膠質(zhì)細胞系來源神經(jīng)營養(yǎng)因子(GDNF)等多因子檢測試劑盒(流式熒光法)(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)79-9688
EDTA plasma(n=5)81-9086
heparin plasma(n=5)91-10398

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)加入適量的膠質(zhì)細胞系來源神經(jīng)營養(yǎng)因子(GDNF)等多因子檢測試劑盒(流式熒光法),并倍比稀釋成1:2,1:4,1:8,1:16的待測樣本,線性范圍即為稀釋后樣本中膠質(zhì)細胞系來源神經(jīng)營養(yǎng)因子(GDNF)等多因子檢測試劑盒(流式熒光法)含量的測定值與理論值的比率。

樣本1:21:41:81:16
serum(n=5)89-96%93-105%78-104%78-102%
EDTA plasma(n=5)94-104%79-94%85-104%95-104%
heparin plasma(n=5)91-99%92-101%95-104%96-105%

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行操作可減少人為誤差。

實驗流程

1、向?qū)嶒灠迕靠變?nèi)加入200μL分析緩沖液以預(yù)濕;
2、實驗前標(biāo)準(zhǔn)品、試劑及樣本準(zhǔn)備;
3、加樣(標(biāo)準(zhǔn)品、樣本、磁珠),標(biāo)準(zhǔn)品或樣本100μL及磁珠10μL,25°C酶標(biāo)板振蕩器孵育2小時;
4、磁吸甩干,加檢測溶液A 100μL,25°C酶標(biāo)板振蕩器孵育1小時;
5、磁吸甩干,加檢測溶液B 100μL,25°C振動孵育30分鐘;
6、磁吸洗板1次;
7、加鞘液100μL,旋渦震蕩10分鐘后讀數(shù)。

實驗原理

將膠質(zhì)細胞系來源神經(jīng)營養(yǎng)因子(GDNF)等多因子檢測試劑盒(流式熒光法)抗體包被于磁性微球表面,制成固相載體,向微孔中分別加入標(biāo)準(zhǔn)品或標(biāo)本以及磁珠,其中的膠質(zhì)細胞系來源神經(jīng)營養(yǎng)因子(GDNF)等多因子檢測試劑盒(流式熒光法)與連接于固相載體上的抗體結(jié)合,然后加入生物素化的膠質(zhì)細胞系來源神經(jīng)營養(yǎng)因子(GDNF)等多因子檢測試劑盒(流式熒光法)抗體,加入PE標(biāo)記的親和素,用流式細胞儀讀數(shù)。MFI值和樣品中的膠質(zhì)細胞系來源神經(jīng)營養(yǎng)因子(GDNF)等多因子檢測試劑盒(流式熒光法)濃度呈正相關(guān)。

贈品

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參考文獻

雜志參考文獻
?Molecular NeurobiologyEfficient Generation of Functionally Active Spinal Cord Neurons from Spermatogonial Stem Cells[pubmed:27566610]
Chinese Medicial JournalSafflower Extract and Aceglutamide Injection Promoting Recovery of Peripheral Innervations via Vascular Endothelial Growth Factor-B Signaling in Diabetic Mice[PMC5717862]
The Chinese Journal of Integrated Traditional and Western Medicine Press and Springer-Verlag Berlin HeidelbergAcupuncture Alters Pro-infl ammatory Cytokines in the Plasma of Maternally Separated Rat Pups[pubmed:28986807]
Heroin Addiction And Related Clinical ProblemsGDNF serum levels are found to be lower in opioid-maintained patients[ISSN 2531-4122]
Journal of Environmental Research and Public HealthEffects of 220 MHz Pulsed Modulated Radiofrequency Field on the Sperm Quality in Rats[Pubmed: 30974849]
Frontiers in Aging NeuroscienceThe Effects of Nordic Walking With Poles With an Integrated Resistance Shock Absorber on Cognitive Abilities and Cardiopulmonary Efficiency in?…[Pubmed: 33192480]
EUROPEAN CHILD & ADOLESCENT PSYCHIATRYIncreased serum brain-derived neurotrophic factor and adrenocorticotropic hormone levels are associated with obsessive compulsive disorder in medication?free??-[33389158]
Int J Biol MacromolThe effect of biodegradable silk fibroin-based scaffolds containing glial cell line-derived neurotrophic factor (GDNF) on the corneal regeneration process[34119551]
InflammopharmacologySilymarin constrains diacetyl-prompted oxidative stress and neuroinflammation in rats: involvements of Dyn/GDNF and MAPK signaling pathway[Pubmed:35366745]
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]