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BioReagent 级 ,适用于对基线干扰要求严格的色谱和分析工作流程。
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在色谱分析、有机合成和交叉偶联反应领域已被 0 篇同行评审文献引用。
Ⅲ型前胶原氨基端肽(PⅢNP)是在III型胶原蛋白的合成过程中产生。肝脏结缔组织中的主要胶原蛋白是I型和III型。如果由于病理情况,肝脏中的结缔组织积极增生(纤维化),就会形成越来越多的原胶原蛋白III N端肽。功能性肝脏组织向结缔组织的转化可以通过提高血液中原胶原蛋白III N端肽的水平来检测。因此,血清中的PIIINP可以作为肝脏纤维化和肝硬化的一个指标来测量。 本试剂盒采用竞争法酶联免疫吸附试验(ELISA)。往预先包被有人Ⅲ型前胶原氨基端肽(PⅢNP)抗原的微孔中,依次加入样本、标准品、Biotin标记的抗体,HRP酶结合物,中间经过温育和洗涤,用底物TMB显色,TMB在过氧化物酶(HRP)的催化下转化成蓝色,并在酸的作用下转化成最终的黄色。颜色的深浅和样本中的人Ⅲ型前胶原氨基端肽(PⅢNP)呈负相关。用酶标仪在450nm波长下测定吸光度(OD值),计算样本浓度。
This kit employs the competitive enzyme-linked immunosorbent assay (ELISA) principle. Microplate wells are pre-coated with Human PⅢNP antigen. The sample, standards, a biotin-labeled antibody, and an HRP enzyme conjugate are then added sequentially to the wells. The procedure includes incubation and wash steps between each addition. TMB substrate is used for color development. In the presence of the peroxidase (HRP) enzyme, TMB is catalyzed to produce a blue color, which is then converted into a final stable yellow color upon the addition of an acid stop solution. The intensity of the resulting yellow color is inversely proportional to the concentration of Human PⅢNP in the sample. The optical density (OD) is measured at a wavelength of 450 nm using a microplate reader, and the concentration of the target analyte in the sample is calculated based on the standard curve.