神经胶质纤维酸性蛋白(GFAP)的酶联免疫吸附试验试剂盒
| 产品描述: | 神经胶质纤维酸性蛋白(GFAP)是星形胶质细胞活化与损伤的特异性标志物,其表达异常与脑卒中、多发性硬化、阿尔茨海默病等神经退行性疾病密切相关,是临床研究中评估神经损伤程度的重要指标。本试剂盒采用双抗夹心法 ELISA 技术,通过特异性抗人 GFAP 单克隆抗体包被微孔板,与样本中 GFAP 结合后,再与辣根过氧化物酶标记的检测抗体形成夹心复合物,经 TMB 底物显色实现定量检测。试剂盒检测范围为 15.6-1000pg/ml,灵敏度达 3.125pg/ml,可精准捕捉人的微量表达变化。该试剂盒适用于多种生物样本类型,包括脑脊液(CSF)、血清、血浆、脑组织匀浆及细胞培养上清液。在科研领域,可助力探究 AD 患者大脑中 GFAP 与 β- 淀粉样蛋白(Aβ)沉积的关联机制,或解析 TBI 后胶质瘢痕形成过程中 GFAP 的时空表达规律;在体外实验中,能够动态监测脑损伤患者的病情演变,评估预后恢复情况;对于神经保护药物研发,其稳定的批内变异系数(CV≤10%)与批间变异系数(CV≤12%),可为科研提供可靠的量化依据。 本品仅用于科研,不用于临床诊断,产品具体参数及操作步骤详见产品说明书。 |
| 别名: | 胶质纤维酸性蛋白,Glial Fibrillary Acidic Protein,GFAP protein,Gfap |
| 缩写: | GFAP |
| Uniprot No: | P14136 |
| 种属: | Mus musculus (Mouse) |
| 样本类型: | serum, plasma, tissue homogenates, cell culture supernates |
| 检测范围: | 15.6-1000pg/ml |
| 反应时间: | 1-5h |
| 样本体积: | 50-100ul |
| 检测波长: | 450 nm |
| 测定原理: | quantitative |
| 测定方法: | Sandwich |
| 货期: | 3-5 working days |
| 本试剂盒所含 材料: | A micro ELISA plat 8×12 |
| Two vials lyophilized standarde | |
| Concentrated Enzyme-Labeled Detection Antibody (100 x concentrate) 1 x 120 μl | |
| Universal Diluent 2 x 20 ml | |
| Wash Buffer (20 x concentrate) 2 x 10 ml | |
| TMB Substrate 1 x 10 ml | |
| Stop Solution 1 x 60 ml | |
| Four plate sealing film (For 96 wells) | |
| An instruction manua | |
| 精密度: | ntra-assay Precision (Precision within an assay): CV%<8% |
| Three samples of known concentration were tested twenty times on one plate to assess. | |
| Inter-assay Precision (Precision between assays): CV%<10% | |
| Three samples of known concentration were tested in twenty assays to assess. |
| 线性度: | To assess the linearity of the assay, samples were spiked with high concentrations of human ACEⅠ in various matrices and diluted with the Sample Diluent to produce samples with values within the dynamic range of the assay. | ||
| Sample | Serum(n=4) | ||
| 1:200 | Average % | 97 | |
| Range % | 92-104 | ||
| 1:400 | Average % | 91 | |
| Range % | 82-98 | ||
| 1:800 | Average % | 103 | |
| Range % | 99-111 | ||
| 1:1600 | Average % | 87 | |
| Range % | 82-96 | ||
| 回收率: | The recovery of human ACEⅠ spiked to levels throughout the range of the assay in various matrices was evaluated. Samples were diluted prior to assay as directed in the Sample Preparation section. | ||
| Sample Type | Average % Recovery | Range | |
| Serum (n=5) | 90 | 85-98 | |
| EDTA plasma (n=4) | 112 | 105-117 | |
| 标准曲线: | 这些标准曲线仅用于演示。应为每组分析的样品生成标准曲线。 | ||
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| 靶点详情: | GFAP(Glial Fibrillary Acidic Protein)作为 Ⅲ 型中间丝蛋白家族的核心成员,特异性表达于中枢神经系统(CNS)的星形胶质细胞、室管膜细胞及放射状胶质细胞中。其独特的 α- 螺旋杆状结构域与头部、尾部功能区协同作用,不仅参与维持细胞骨架的动态平衡,还通过与波形蛋白、巢蛋白等中间丝蛋白形成异源二聚体,构建起神经组织的立体支撑网络。在生理状态下,GFAP 维持低水平稳定表达;而当遭遇阿尔茨海默病(AD)、帕金森病(PD)等神经退行性病变,或创伤性脑损伤(TBI)、缺血性脑卒中时,星形胶质细胞迅速活化,GFAP 基因转录显著上调,其血清或脑脊液中的浓度可呈数十倍甚至上百倍激增,这种动态变化使其成为监测神经病理进程的关键生物标志物。 |
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