分泌型卷曲相关蛋白5(SFRP5)检测试剂盒(酶联免疫吸附试验法)
ELISA Kit for Secreted Frizzled Related Protein 5 (SFRP5)
SARP3; Secreted Apoptosis Related Protein 3; Frizzled-related protein 1b
- 编号SEC842Hu
- 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3h
- 检测范围1.56-100ng/mL
- 灵敏度最小可检测剂量小于等于0.58ng/mL.
- 样本类型Serum, plasma, tissue homogenates 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
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产品包装(模拟)
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产品包装(模拟)
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实验结果图
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标准曲线图
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通过ISO 9001、ISO 13485质量体系认证
特异性
本试剂盒用于检测分泌型卷曲相关蛋白5(SFRP5)，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分泌型卷曲相关蛋白5(SFRP5)（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) | 79-93 | 83 |
| EDTA plasma(n=5) | 85-92 | 88 |
| heparin plasma(n=5) | 87-105 | 98 |
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分泌型卷曲相关蛋白5(SFRP5)，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分泌型卷曲相关蛋白5(SFRP5)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) | 93-101% | 98-105% | 90-104% | 80-92% |
| EDTA plasma(n=5) | 93-101% | 94-102% | 78-99% | 86-94% |
| heparin plasma(n=5) | 98-105% | 83-92% | 81-93% | 89-97% |
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
将分泌型卷曲相关蛋白5(SFRP5)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，其中的分泌型卷曲相关蛋白5(SFRP5)与连接于固相载体上的抗体结合，然后加入生物素化的分泌型卷曲相关蛋白5(SFRP5)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分泌型卷曲相关蛋白5(SFRP5)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。
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！) |
| RPC842Hu01 | 分泌型卷曲相关蛋白5(SFRP5)重组蛋白 | Positive Control; Immunogen; SDS-PAGE; WB. |
| RPC842Hu02 | 分泌型卷曲相关蛋白5(SFRP5)重组蛋白 | Positive Control; Immunogen; SDS-PAGE; WB. |
| RPC842Hu03 | 分泌型卷曲相关蛋白5(SFRP5)重组蛋白 | Positive Control; Immunogen; SDS-PAGE; WB. |
| PAC842Hu01 | 分泌型卷曲相关蛋白5(SFRP5)多克隆抗体 | WB; IHC; ICC; IP. |
| PAC842Hu03 | 分泌型卷曲相关蛋白5(SFRP5)多克隆抗体 | WB; IHC; ICC; IP. |
| PAC842Hu02 | 分泌型卷曲相关蛋白5(SFRP5)多克隆抗体 | WB; IHC; ICC; IP. |
| LAC842Hu71 | 分泌型卷曲相关蛋白5(SFRP5)多克隆抗体(生物素标记) | WB; IHC; ICC. |
| MAC842Hu22 | 分泌型卷曲相关蛋白5(SFRP5)单克隆抗体 | WB; IHC; ICC; IP. |
| LAC842Hu72 | 分泌型卷曲相关蛋白5(SFRP5)单克隆抗体(生物素标记) | WB; IHC; ICC. |
| SEC842Hu | 分泌型卷曲相关蛋白5(SFRP5)检测试剂盒(酶联免疫吸附试验法) | Enzyme-linked immunosorbent assay for Antigen Detection. |
| WEC842Hu | 分泌型卷曲相关蛋白5(SFRP5)检测试剂盒(酶联免疫吸附试验法,宽范围) | Enzyme-linked immunosorbent assay for Antigen Detection. |
| HEC842Hu | 分泌型卷曲相关蛋白5(SFRP5)检测试剂盒(酶联免疫吸附试验法,高敏型) | Enzyme-linked immunosorbent assay for Antigen Detection. |
| LMC842Hu | 分泌型卷曲相关蛋白5(SFRP5)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 |
| Diabetes Research and Clinical Practice | Plasma SFRP5 levels are decreased in Chinese subjects with obesity and type 2 diabetes and negatively correlated with parameters of insulin resistance [PubMed: 23290274] |
| European Journal of Clinical Investigation | Sfrp5 correlates with insulin resistance and oxidative stress [PubMed: 23398169] |
| Pediatric Research | Balanced duo of anti-inflammatory SFRP5 and proinflammatory WNT5A in children [Pubmed: 24603290] |
| Clin Endocrinol (Oxf). | SFRP5 correlates with obesity and metabolic syndrome and increases after weight loss in children [Pubmed: 24330025] |
| The Journal of Clinical Endocrinology & Metabolism | Circulating Sfrp5 is a signature of obesity-related metabolic disorders and is regulated by glucose and liraglutide in humans [Pubmed: 23185036] |
| Atherosclerosis | Low serum level of secreted frizzled-related protein 5, an anti-inflammatory adipokine, is associated with coronary artery disease [Pubmed: 24530778] |
| PLoS One. | Identification of adipokine clusters related to parameters of fat mass, insulin sensitivity and inflammation [Pubmed:Pmc4072672] |
| J Clin Endocrinol Metab. | Activation of noncanonical Wnt signaling through WNT5A in visceral adipose tissue of obese subjects is related to inflammation [Pubmed:24840810] |
| Oncology Letters | Serum secreted frizzled?related protein 5 levels differentially decrease in patients with hepatitis B virus?associated chronic infection and hepatocellular carcinoma [Pubmed:25120720] |
| Diabetes Metab Res Rev. | Circulating SFRP5 levels are elevated in drug‐na?ve recently diagnosed type 2 diabetic patients as compared with prediabetic subjects and controls [Pubmed:25139699] |
| Clinical & Experimental Immunology | The wingless-related integration site-5a/secreted frizzled-related protein-6 system is dysregulated in human sepsis [Pubmed:25382802] |
| Diabetes Metab Res Rev | Circulating SFRP5 levels are elevated in drug-na [PubMed: 25139699] |
| J Matern Fetal Neonatal Med | Prediction of gestational diabetes mellitus by first trimester serum secreted frizzle-related protein-5 levels [PubMed: 26100762] |
| Eur J Clin Invest | Sfrp5 associates with beta-cell function in humans [Pubmed:27019073] |
| Osteoporosis International | Bone marrow sFRP5 level is negatively associated with bone formation markers [pubmed:27986984] |
| Diabetes/Metabolism Research and Reviews | Plasma Sfrp5 levels correlate with determinants of the metabolic syndrome in Chinese adults [pubmed:28303637] |
| Cardiovascular Diabetology | Inverse associations between serum levels of secreted frizzled-related protein-5 (SFRP5) and multiple cardiometabolic risk factors: KORA F4 study [pubmed:28851362] |
| Arteriosclerosis, Thrombosis, and Vascular Biology | Effect of SFRP5 (Secreted Frizzled–Related Protein 5) on the WNT5A (Wingless-Type Family Member 5A)-Induced Endothelial Dysfunction and Its Relevance With … [Pubmed:29674475] |
| Obesity | Longitudinal Increases in Adiposity Contribute to Worsening Adipokine Profile over Time in Mexican Americans [Pubmed:29427376] |
| J Bas Res Med Sci | Decreased level of the anti-inflammatory adipokines, secreted frizzled-related protein 5 and adiponectin, in high cholesterol diet-induced atherosclerotic rats [article-1-352-en.pdf] |
| Molecular Biology Reports | The effect of serum and follicular fluid secreted frizzle-related protein-5 on in vitro fertilization outcomes in patients with polycystic ovary syndrome [Pubmed: 30194556] |
| Macrophage LRP1 promotes diet-induced hepatic inflammation and metabolic dysfunction by modulating Wnt signaling [] | |
| British Journal Of Nutrition | A diet high in sugar-sweetened beverage and low in fruits and vegetables is associated with adiposity and a pro-inflammatory adipokine profile [Pubmed: 30375290] |
| J Clin Endocrinol Metab | Role of wnt5a in Metabolic Inflammation in Humans [Pubmed: 30137542] |
| Frontiers in Endocrinology | Association of Adipocytokines With Carotid Intima Media Thickness and Arterial Stiffness in Obstructive Sleep Apnea Patients [Pubmed: 32300333] |
| CLINICAL BIOCHEMISTRY | Sfrp5/Wnt5a and Leptin/adiponectin levels in the serum and the periarterial adipose tissue of patients with peripheral arterial occlusive disease [Pubmed: 33188773] |
| Sao Paulo Medical Journal | Association of serum levels of secreted frizzled-related protein 5 and Wnt member 5a with glomerular filtration rate in patients with type 2 diabetes mellitus and … [Pubmed: 32491086] |
| Kidney Blood Press Res | Secreted Frizzled-Related Protein 5 Ameliorates Vascular Calcification in a Rat Model of Chronic Kidney Disease through the Wnt/β-Catenin Pathway [34469882] |
| Cytokine | Association of serum uromodulin with adipokines in dependence of type 2 diabetes [34920231] |
| PLoS One | Association of circulating MR-proADM with all-cause and cardiovascular mortality in the general population: Results from the KORA F4 cohort study [Pubmed:34990470] |
| JMIR Res Protoc | Investigating New Sensory Methods Related to Taste Sensitivity, Preferences, and Diet of Mother-Infant Pairs and Their Relationship With Body Composition … [Pubmed:35475790] |
| Diabetology | Early Pregnancy Serum Concentration of Secreted Frizzled-Related Protein 4, Secreted Frizzled-Related Protein 5, and Chemerin in Obese Women Who Develop … [] |
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