羧甲基賴氨酸(CML)等多因子檢測試劑盒(流式熒光法)
Multiplex Assay Kit for Carboxymethyl Lysine (CML) ,etc. by CBA (Cytometric Bead Array)
N(6)-Carboxymethyllysine
特異性
本試劑盒用于檢測羧甲基賴氨酸(CML)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羧甲基賴氨酸(CML)等多因子檢測試劑盒(流式熒光法)(加標樣品),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) | 81-97 | 93 |
| EDTA plasma(n=5) | 82-95 | 86 |
| heparin plasma(n=5) | 97-105 | 101 |
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)加入適量的羧甲基賴氨酸(CML)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羧甲基賴氨酸(CML)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 | 1:2 | 1:4 | 1:8 | 1:16 |
| serum(n=5) | 79-105% | 94-102% | 84-96% | 80-101% |
| EDTA plasma(n=5) | 93-104% | 88-105% | 82-104% | 80-99% |
| heparin plasma(n=5) | 88-97% | 83-94% | 78-101% | 87-101% |
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、實驗前標準品、試劑及樣本準備;
3、加樣(標準品、樣本、磁珠、檢測溶液A),標準品或樣本50μL,加檢測溶液A 50μL,及磁珠10μL,25°C酶標板振蕩器孵育90分鐘;
4、磁吸甩干,加檢測溶液B 100μL,25°C振動孵育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)。
實驗原理
將羧甲基賴氨酸(CML)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。在微孔中同時加入待測抗原(標準品或樣本)、生物素標記的抗原和微球。待測抗原與生物素標記抗原對特異性抗體進行競爭結(jié)合。加入PE標記的鏈霉親和素,上機讀數(shù)。MFI值(Median Fluorescence Intensity)和樣品中的羧甲基賴氨酸(CML)等多因子檢測試劑盒(流式熒光法)濃度呈負相關(guān)。
贈品
增值服務(wù)
相關(guān)產(chǎn)品
| 編號 | 適用物種:Pan-species (General,通用) | 應(yīng)用(僅供研究使用,不用于臨床診斷!) |
| CEB977Ge | 羧甲基賴氨酸(CML)檢測試劑盒(酶聯(lián)免疫吸附試驗法) | Enzyme-linked immunosorbent assay for Antigen Detection. |
| CMB977Ge | 羧甲基賴氨酸(CML)等多因子檢測試劑盒(流式熒光法) | FLIA Kit for Antigen Detection. |
| LMB977Ge | 羧甲基賴氨酸(CML)等多因子檢測試劑盒(流式熒光發(fā)光法) | FLIA Kit for Antigen Detection. |
參考文獻
| 雜志 | 參考文獻 |
| PLoS ONE | Advanced Glycation End Products Induce Human Corneal Epithelial Cells Apoptosis through Generation of Reactive Oxygen Species and Activation of JNK and p38 MAPK Pathways[PubMed: PMC3680386] |
| Int J Vitam Nutr Res. | Effects of combined lipoic acid and pyridoxine on albuminuria, advanced glycation end-products, and blood pressure in diabetic nephropathy.[Pubmed: 24491880] |
| Geriatr Gerontol Int | Advanced glycation end-products accelerate the cardiac aging process through the receptor for advanced glycation end-products/transforming growth factor-β-Smad signaling pathway in cardiac fibroblasts[PubMed: 26016731] |
| J Agric Food Chem | Inhibition of Advanced Glycation Endproduct Formation by Lotus Seedpod Oligomeric Procyanidins through RAGE-MAPK Signaling and NF-κB Activation in High-Fat-Diet Rats.[PubMed: 26207852] |
| Journal of Diabetes and Its Complications. | Association of serum N ??-Carboxy methyl lysine with severity of diabetic retinopathy[Pubmed:26782022] |
| J Nat Med.? | Hyperoside reduces albuminuria in diabetic nephropathy at the early stage through ameliorating renal damage and podocyte injury.[Pubmed:27255369] |
| J Diabetes Complications | Increased levels of N(ε)- Carboxy methyl lysine (N(ε)-CML) are associated with topographic alterations in retinal pigment epithelium: A preliminary study[Pubmed:27039312] |
| J Nutr Biochem. | Long-term administration of advanced glycation end-product stimulates the activation of NLRP3 inflammasome and sparking the development of renal injury.[pubmed:27816762] |
| Renal Failure | Plasma heparanase is associated with blood glucose levels but not urinary microalbumin excretion in type 2 diabetic nephropathy at the early stage [pubmed:28994624] |
| Nutrition, Metabolism, and Cardiovascular Diseases | High intake of dietary advanced glycation end-products is associated with increased arterial stiffness and inflammation in subjects with type 2 diabetes.[pubmed:28958695] |
| Journal of?Food?Science?and Technology | Antiglycation and antioxidant activities of mogroside extract from (Swingle) fruits[Pubmed:29666541] |
| Indian J Ophthalmol | Elevated advanced glycation end products are associated with subfoveal ellipsoid zone disruption in diabetic macular edema[34708772] |


