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Ⅱ型前膠原羧基端原肽(PIICP)檢測試劑盒(酶聯免疫吸附試驗法)

ELISA Kit for Procollagen II C-Terminal Propeptide (PIICP)

P2CP; C-Propeptide Of Type II Procollagen; Procollagen II Carboxy Terminal Propeptide

  • Ⅱ型前膠原羧基端原肽(PIICP)檢測試劑盒(酶聯免疫吸附試驗法)產品包裝(模擬)
  • Ⅱ型前膠原羧基端原肽(PIICP)檢測試劑盒(酶聯免疫吸附試驗法)產品包裝(模擬)
  • Ⅱ型前膠原羧基端原肽(PIICP)檢測試劑盒(酶聯免疫吸附試驗法)實驗結果圖
  • CEA964Ra.jpg標準曲線圖
  • 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型前膠原羧基端原肽(PIICP),經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型前膠原羧基端原肽(PIICP)(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)94-10197
EDTA plasma(n=5)90-10193
heparin plasma(n=5)84-9793

精密度

精密度用樣品測定值的變異系數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型前膠原羧基端原肽(PIICP),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型前膠原羧基端原肽(PIICP)含量的測定值與理論值的比率。

樣本1:21:41:81:16
serum(n=5)84-101%78-104%85-104%84-93%
EDTA plasma(n=5)88-105%93-103%79-94%97-104%
heparin plasma(n=5)88-101%97-104%80-92%86-93%

穩(wěn)定性

經測定,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、試劑及樣本的準備;
2. 加樣(標準品及樣本)50µL,
    加入50µL檢測液A(臨用前配制);
    37°C溫育1小時。
3. 洗板3次;
4. 加檢測溶液B100µL,37°C孵育30分鐘;
5. 洗板5次;
6. 加TMB底物90µL,37°C孵育10-20分鐘;
7. 加終止液50µL,立即450nm讀數。

實驗原理

本試劑盒應用競爭抑制酶聯免疫分析法測定標本中待測物質水平。將Ⅱ型前膠原羧基端原肽(PIICP)單克隆抗體包被微孔板,制成固相載體,往包被抗體的微孔中同時加入生物素標記的抗原和待測抗原(標準品或樣本),待測抗原與生物素標記抗原對特異性抗體進行競爭結合。溫育后經洗滌去掉未結合物,然后加入HRP標記的親和素,經過溫育和徹底洗滌后加入底物TMB顯色。TMB在過氧化物酶的催化下轉化成藍色,并在酸的作用下轉化成最終的黃色。待測標本濃度越高,標記抗原和抗體的結合就越受到抑制,顯色愈淺。顯色的深淺與酶量呈正相關,而與樣品中待測物質含量呈負相關。用酶標儀在450nm波長下測定吸光度(O.D.值),計算樣品濃度。

相關產品

編號適用物種:Rattus norvegicus (Rat,大鼠)應用(僅供研究使用,不用于臨床診斷!)
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參考文獻

雜志參考文獻
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Functional Foods in Health & DiseaseEvaluation of the effect of administering N-acetyl-glucosamine-containing green tea supplement on biomarkers for cartilage metabolism in healthy individuals without symptoms of arthritis: a randomized double-blind placebo-controlled clinical study[309]
EXPERIMENTAL AND THERAPEUTIC MEDICINEEffect of N-acetylglucosamine administration on cartilage metabolism and safety in healthy subjects without symptoms of arthritis: A case report[pubmed:28413518]
Experimental?and?Therapeutic?MedicineEvaluation of the effect of salmon nasal proteoglycan on biomarkers for cartilage metabolism in individuals with knee joint discomfort: A randomized double?blind placebo?controlled clinical study[etm:14]
Experimental and Therapeutic MedicineEvaluation of the efficacy of Ajuga decumbens extract supplement in individuals with knee discomfort associated with physical activity: A randomized, double?blind, placebo?controlled study[10.3892/etm.2017.5064]
EXPERIMENTAL AND THERAPEUTIC MEDICINEEvaluation of the chondroprotective action of N?acetylglucosamine in a rat experimental osteoarthritis [pubmed:28912864]
Functional Foods In Health And DiseaseEvaluation of the effect of N-acetyl-glucosamine administration on biomarkers for cartilage metabolism in healthy individuals: a randomized double-blind placebo-controlled clinical study[view/366]
SpineNo effects of hyperosmolar culture medium on tissue regeneration by human degenerated nucleus pulposus cells despite upregulation extracellular matrix genes[fulltext:2018/03010]
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]
Functional Food Researchサケ鼻軟骨由來プロテオグリカン摂取による関節(jié)保護効果[]
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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]
International Journal of Molecular SciencesBone Morphogenetic Proteins for Nucleus Pulposus Regeneration[Pubmed: 32295299]
BiomoleculesConcerted Actions by PIICP, CTXII, and TNF-|á in Patients with Juvenile Idiopathic Arthritis[33924892]