防御素β1(DEFb1)检测试剂盒(化学发光免疫分析法)
CLIA Kit for Defensin Beta 1 (DEFb1)
B-DF1; DEFB1; BD1; DEF-B1; DEFB101; HBD1
- 编号SCB373Hu
- 物种Homo sapiens (Human,人) 相同的名称,不同的物种。
- 实验方法双抗夹心
- 反应时长2h, 40min
- 检测范围0.312-20ng/mL
- 灵敏度最小可检测剂量小于等于0.123ng/mL.
- 样本类型serum, plasma, tissue homogenates, cell lysates, cell culture supernates and other biological fluids
- 下载 英文说明书 中文说明书
- 规格 48T96T 96T*5 96T*10 96T*100
- 价格 ¥ 3352 ¥ 4788 ¥ 21546 ¥ 40698 ¥ 335160
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特异性
本试剂盒用于检测防御素β1(DEFb1),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防御素β1(DEFb1)(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) | 94-105 | 101 |
EDTA plasma(n=5) | 87-95 | 90 |
heparin plasma(n=5) | 95-104 | 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防御素β1(DEFb1),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防御素β1(DEFb1)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) | 83-91% | 80-88% | 81-95% | 98-105% |
EDTA plasma(n=5) | 80-101% | 95-104% | 96-105% | 87-96% |
heparin plasma(n=5) | 92-99% | 82-101% | 96-103% | 80-91% |
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. 加底物100µL,37°C孵育10分钟;
8. 读数。
实验原理
将防御素β1(DEFb1)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,其中的防御素β1(DEFb1)与连接于固相载体上的抗体结合,然后加入生物素化的防御素β1(DEFb1)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底物。加入底物后会产生辉光型光信号。发射光强度和样品中的防御素β1(DEFb1)呈正相关。用化学发光仪测定相对光单位(RLU),计算样品浓度。
增值服务
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!) |
APB373Hu01 | 防御素β1(DEFb1)活性蛋白 | Cell culture; Activity Assays. |
RPB373Hu01 | 防御素β1(DEFb1)重组蛋白 | Positive Control; Immunogen; SDS-PAGE; WB. |
PAB373Hu01 | 防御素β1(DEFb1)多克隆抗体 | WB; IHC; ICC; IP. |
MAB373Hu22 | 防御素β1(DEFb1)单克隆抗体 | WB; IHC; ICC; IP. |
SEB373Hu | 防御素β1(DEFb1)检测试剂盒(酶联免疫吸附试验法) | Enzyme-linked immunosorbent assay for Antigen Detection. |
SCB373Hu | 防御素β1(DEFb1)检测试剂盒(化学发光免疫分析法) | Chemiluminescent immunoassay for Antigen Detection. |
LMB373Hu | 防御素β1(DEFb1)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 |
Appl Environ Microbiol. | Modulation of Porcine β-Defensins 1 and 2 upon Individual and Combined Fusarium Toxin Exposure in a Swine Jejunal Epithelial Cell Line [Asm: Source] |
British Journal of Nutrition | Identification of sociodemographic and clinical factors associated with the levels of human β-defensin-1 and human β-defensin-2 in the human milk of Han Chinese [Pubmed: 24124699] |
International Journal of Dairy Technology | Concentration characteristics of bovine β-defensin 1 and 2 in fresh bovine milk and infant formula [Doi: 10.1111] |
Molecular Nutrition Food Research | Green tea polyphenol epigallocatechin-3-gallate improves epithelial barrier function by inducing the productionof antimicrobial peptide pBD-1 and pBD-2 in monolayers of porcine intestinal epithelial IPEC-J2 cells. [Pubmed:26991948] |
Frontiers in Microbiology | Swine-Derived Probiotic Lactobacillus plantarum Inhibits Growth and Adhesion of Enterotoxigenic Escherichia coli and Mediates Host Defense [Pubmed:29997590] |
International Immunopharmacology | Caprylic acid and nonanoic acid upregulate endogenous host defense peptides to enhance intestinal epithelial immunological barrier function via histone deacetylase … [Pubmed: 30342347] |
cyberleninka | EFFECT OF NIOSOMAL ANTIMICROBIAL PEPTIDE HBD-1 ON THE HEALING RATE OF INFECTED WOUNDS IN RATS [] |
Fundamental & clinical pharmacology | Effect of antimicrobial peptides HNP‐1 and hBD‐1 on Staphylococcus aureus strains in vitro and in vivo [Pubmed: 31313350] |
Cytokine | Levels of pro-and anti-inflammatory cytokines in cystic fibrosis patients with or without gingivitis [Pubmed: 31927460] |
Animals | Fat Encapsulation Reduces Diarrhea in Piglets Partially by Repairing the Intestinal Barrier and Improving Fatty Acid Transport [33375218] |
Sci Rep | Human beta defensin levels and vaginal microbiome composition in post-menopausal women diagnosed with lichen sclerosus [34362937] |
J Mol Histol | Isolation, culture, and identification of ceruminous gland cells [Pubmed:35113280] |