D-氨基酸氧化酶(DAO)检测试剂盒(酶联免疫吸附试验法)

ELISA Kit for D-Amino Acid Oxidase (DAO)

DAMOX

  • D-氨基酸氧化酶(DAO)检测试剂盒(酶联免疫吸附试验法) 产品包装(模拟)
  • D-氨基酸氧化酶(DAO)检测试剂盒(酶联免疫吸附试验法) 产品包装(模拟)
  • D-氨基酸氧化酶(DAO)检测试剂盒(酶联免疫吸附试验法) 实验结果图
  • SEJ298Hu.jpg 标准曲线图
  • Certificate 通过ISO 9001、ISO 13485质量体系认证

特异性

本试剂盒用于检测D-氨基酸氧化酶(DAO),经检测与其它相似物质无明显交叉反应。
由于受到技术及样本来源的限制,不可能完成对所有相关或相似物质交叉反应检测,因此本试剂盒有可能与未经检测的其它物质有交叉反应。

回收率

分别于定值血清及血浆样本中加入一定量的D-氨基酸氧化酶(DAO)(加标样品),重复测定并计算其均值,回收率为测定值与理论值的比率。

样本 回收率范围(%) 平均回收率(%)
serum(n=5) 89-96 93
EDTA plasma(n=5) 84-101 94
heparin plasma(n=5) 87-104 99

精密度

精密度用样品测定值的变异系数CV表示。CV(%) = SD/mean×100
批内差:取同批次试剂盒对低、中、高值定值样本进行定量检测,每份样本连续测定20 次,分别计算不同浓度样本的平均值及SD值。
批间差:选取3个不同批次的试剂盒分别对低、中、高值定值样本进行定量测定,每个样本使用同一试剂盒重复测定8次,分别计算不同浓度样本的平均值及SD值。
批内差: CV<10%
批间差: CV<12%

线性

在定值血清及血浆样本内加入适量的D-氨基酸氧化酶(DAO),并倍比稀释成1:2,1:4,1:8,1:16的待测样本,线性范围即为稀释后样本中D-氨基酸氧化酶(DAO)含量的测定值与理论值的比率。

样本 1:2 1:4 1:8 1:16
serum(n=5) 81-92% 87-96% 98-105% 95-103%
EDTA plasma(n=5) 88-99% 79-93% 95-104% 98-105%
heparin plasma(n=5) 90-97% 89-97% 97-105% 84-97%

稳定性

经测定,试剂盒在有效期内按推荐温度保存,其活性降低率小于5%。
为减小外部因素对试剂盒破坏前后检测值的影响,实验室的环境条件需尽量保持一致,尤其是实验室内温度、湿度及温育条件。其次由同一实验员来进行操作可减少人为误差。

实验流程

1. 实验前标准品、试剂及样本的准备;
2. 加样(标准品及样本)100µL,37°C孵育1小时;
3. 吸弃,加检测溶液A100µL,37°C孵育1小时;
4. 洗板3次;
5. 加检测溶液B100µL,37°C孵育30分钟;
6. 洗板5次;
7. 加TMB底物90µL,37°C孵育10-20分钟;
8. 加终止液50µL,立即450nm读数。

实验原理

将D-氨基酸氧化酶(DAO)抗体包被于96孔微孔板中,制成固相载体,向微孔中分别加入标准品或标本,其中的D-氨基酸氧化酶(DAO)与连接于固相载体上的抗体结合,然后加入生物素化的D-氨基酸氧化酶(DAO)抗体,将未结合的生物素化抗体洗净后,加入HRP标记的亲和素,再次彻底洗涤后加入TMB底物显色。TMB在过氧化物酶的催化下转化成蓝色,并在酸的作用下转化成最终的黄色。颜色的深浅和样品中的D-氨基酸氧化酶(DAO)呈正相关。用酶标仪在450nm波长下测定吸光度(O.D.值),计算样品浓度。

相关产品

编号 适用物种:Homo sapiens (Human,人) 应用(仅供研究使用,不用于临床诊断!)
RPJ298Hu01 D-氨基酸氧化酶(DAO)重组蛋白 Positive Control; Immunogen; SDS-PAGE; WB.
PAJ298Hu01 D-氨基酸氧化酶(DAO)多克隆抗体 WB; IHC; ICC; IP.
MAJ298Hu21 D-氨基酸氧化酶(DAO)单克隆抗体 WB; IHC; ICC; IP.
SEJ298Hu D-氨基酸氧化酶(DAO)检测试剂盒(酶联免疫吸附试验法) Enzyme-linked immunosorbent assay for Antigen Detection.
SCJ298Hu D-氨基酸氧化酶(DAO)检测试剂盒(化学发光免疫分析法) Chemiluminescent immunoassay for Antigen Detection.
LMJ298Hu D-氨基酸氧化酶(DAO)等多因子检测试剂盒(流式荧光发光法) FLIA Kit for Antigen Detection.

参考文献

杂志 参考文献
Differential regulation of D-amino acid oxidase (DAO) mRNA and protein expression in human post-mortem brain [Dam: Jcr:3107E495-Ef68-4692-85Be-D43D9F3F84Ff]
不确定杂志名 Age span expression of schizophrenia susceptibility genes D-amino acid oxidase (DAO) and DAO activator (DAOA) in human post-mortem brain [dam:jcr:c3394762-a692-4fbd-8a37-7da14f429996]
Frontiers in Neuroanatomy Expression of D-Amino Acid Oxidase (DAO/DAAO) and D-Amino Acid Oxidase Activator (DAOA/G72) during Development and Aging in the Human Post-mortem Brain. [pubmed:28428746]
BMC gastroenterology Noninvasive biomarkers of gut barrier function identify two subtypes of patients suffering from diarrhoea predominant-IBS: a case-control study [Pubmed: 30400824]
Journal of Gastroenterology Gut microbiota dysbiosis worsens the severity of acute pancreatitis in patients and mice [Pubmed: 30519748]
Phytotherapy Research Effect of a chamomile extract in protecting against radiation‐induced intestinal mucositis [Pubmed: 30632234]
Biological & Pharmaceutical Bulletin Role of Aquaporin-3 in Intestinal Injury Induced by Sepsis [Pubmed: 31582652]
Int Immunopharmacol Hydrogen attenuates radiation-induced intestinal damage by reducing oxidative stress and inflammatory response [Pubmed: 32361189]
european journal of clinical nutrition? Effect of Lactobacillus casei on lipid metabolism and intestinal microflora in patients with alcoholic liver injury [33514869]
Nutrients The Relationship between Low Serum Vitamin D Levels and Altered Intestinal Barrier Function in Patients with IBS Diarrhoea Undergoing a Long-Term Low-FODMAP [33801020]
J Cell Mol Med The ¦Á2AR/Caveolin©\1/p38MAPK/NF©\¦ÊB axis explains dexmedetomidine protection against lung injury following intestinal ischaemia©\reperfusion [34114328]
BMC Gastroenterol Somatization in patients with predominant diarrhoea irritable bowel syndrome: the role of the intestinal barrier function and integrity [34022802]
Nutrients Psychological and Gastrointestinal Symptoms of Patients with Irritable Bowel Syndrome Undergoing a Low-FODMAP Diet: The Role of the Intestinal Barrier [34371976]
Int J Neuropsychopharmacol Blood D-amino acid oxidase (DAO) levels increased with cognitive decline among people with mild cognitive impairment (MCI): a two-year prospective study [Pubmed:35430632]
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