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Ⅱ型膠原交聯(lián)羧基端肽(CTXII)等多因子檢測試劑盒(流式熒光發(fā)光法)

Multiplex Assay Kit for Cross Linked C-Telopeptide Of Type II Collagen (CTXII) ,etc. by FLIA (Flow Luminescence Immunoassay)

CTX-II; CTX2

(注:單次混測多因子不超過8個指標 )

  • Ⅱ型膠原交聯(lián)羧基端肽(CTXII)等多因子檢測試劑盒(流式熒光發(fā)光法)產(chǎn)品包裝(模擬)
  • Ⅱ型膠原交聯(lián)羧基端肽(CTXII)等多因子檢測試劑盒(流式熒光發(fā)光法)產(chǎn)品包裝(模擬)
  • Certificate通過ISO 9001、ISO 13485質量體系認證

特異性

本試劑盒用于檢測Ⅱ型膠原交聯(lián)羧基端肽(CTXII)等多因子檢測試劑盒(流式熒光發(fā)光法),經(jīng)檢測與其它相似物質無明顯交叉反應。
由于受到技術及樣本來源的限制,不可能完成對所有相關或相似物質交叉反應檢測,因此本試劑盒有可能與未經(jīng)檢測的其它物質有交叉反應。

回收率

分別于定值血清及血漿樣本中加入一定量的Ⅱ型膠原交聯(lián)羧基端肽(CTXII)等多因子檢測試劑盒(流式熒光發(fā)光法)(加標樣品),重復測定并計算其均值,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)95-10298
EDTA plasma(n=5)82-9186
heparin plasma(n=5)92-10195
sodium citrate plasma(n=5)93-10196

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測定8次,分別計算不同濃度樣本的平均值及SD值。
批內差: CV<10%
批間差: CV<12%

線性

在定值血清及血漿樣本內加入適量的Ⅱ型膠原交聯(lián)羧基端肽(CTXII)等多因子檢測試劑盒(流式熒光發(fā)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Ⅱ型膠原交聯(lián)羧基端肽(CTXII)等多因子檢測試劑盒(流式熒光發(fā)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)83-103%80-101%78-102%92-101%
EDTA plasma(n=5)86-95%98-105%86-101%78-96%
heparin plasma(n=5)84-98%88-95%83-91%88-98%
sodium citrate plasma(n=5)94-103%80-103%98-105%93-102%

穩(wěn)定性

經(jīng)測定,試劑盒在有效期內按推薦溫度保存,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. 實驗前標準品、試劑及樣本準備;
2. 加樣(標準品、樣本、磁珠、檢測溶液A)標準品或樣本50μL及磁珠10μL,加檢測溶液A50μL,
    37°C酶標板振蕩器孵育60分鐘;
3. 磁吸洗板3次;
4. 加檢測溶液B100μL,37°C振動孵育30分鐘;
5. 磁吸洗板3次;
6. 加鞘液100μL,旋渦震蕩2分鐘后讀數(shù)。

實驗原理

將Ⅱ型膠原交聯(lián)羧基端肽(CTXII)等多因子檢測試劑盒(流式熒光發(fā)光法)抗體包被于磁珠,制成固相載體,向微孔中分別加入標準品或標本以及磁珠、標記VEGFA,標記的Ⅱ型膠原交聯(lián)羧基端肽(CTXII)等多因子檢測試劑盒(流式熒光發(fā)光法)和未標記的Ⅱ型膠原交聯(lián)羧基端肽(CTXII)等多因子檢測試劑盒(流式熒光發(fā)光法)與連接于固相載體上的抗體競爭結合,然后將未結合物洗凈后,加入PE標記的親和素,再次徹底洗滌后即可上機讀數(shù)。MFI值和樣品中的Ⅱ型膠原交聯(lián)羧基端肽(CTXII)等多因子檢測試劑盒(流式熒光發(fā)光法)呈負相關。

贈品

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參考文獻

雜志參考文獻
CartilageComparison of Intra-articular Injection of Hyaluronic Acid and N-Acetyl Cysteine in the Treatment of Knee Osteoarthritis A Pilot Study[1947603516675915.abstract]
BioMed Research InternationalDecreased Plasma COMP and Increased Plasma CTX-II Levels in a Chinese Pseudoachondroplasia Family with Novel COMP Mutation[pubmed:29104872]
In VivoOsteochondral Repair Using Porous Three-dimensional Nanocomposite Scaffolds in a Rabbit Model[pubmed:28882956]
Aging CellTransthyretin deposition promotes progression of osteoarthritis[pubmed:28941045]
Molecular Medicine ReportsMori Folium water extract alleviates articular cartilage damages and inflammatory responses in monosodium iodoacetate?induced osteoarthritis rats[pubmed:29067461]
Experimental and Clinical Sciences International online journal for advances in scienceSchisandrae Fructus ethanol extract ameliorates inflammatory responses and articular cartilage damage in monosodium iodoacetate-induced osteoarthritis in rats.[pubmed:28507472]
Advances in?Clinical?and Experimental?MedicineFibulin-3 and other cartilage metabolism biomarkers in relationship to calprotectin (MRP8/14) and disease activity in rheumatoid arthritis patients treated with?…[68362.pdf]
Journal of Orthopaedic Surgery and ResearchThe levels of urine CTX-II, C2C, and PYD in children patients with Kashin-Beck disease in Qinghai Province of China[Pubmed: 30635000]
NutrientsThe Preventive Effects of Greenshell Mussel (Perna canaliculus) on Early-Stage Metabolic Osteoarthritis in Rats with Diet-Induced Obesity[Pubmed: 31311115]
International journal of molecular sciencesDifferences in Osteoimmunological Biomarkers Predictive of Psoriatic Arthritis among a Large Italian Cohort of Psoriatic Patients[Pubmed: 31717649]
Applied Physiology Nutrition and MetabolismEffectiveness of collagen supplementation on pain scores in healthy individuals with self-reported knee pain; A randomized controlled trial[Pubmed: 31990581]
heliyonOral intake of Streptococcus thermophilus improves knee osteoarthritis degeneration: A randomized, double-blind, placebo-controlled clinical study[]
EBioMedicineRepopulation of decellularised articular cartilage by laser-based matrix engraving[33483297]
BiomoleculesConcerted Actions by PIICP, CTXII, and TNF-|á in Patients with Juvenile Idiopathic Arthritis[33924892]