区分原发性与继发膜肾病
随着时间的流逝,监测膜性肾病的患者,以了解抗Pla2R抗体水平的趋势
抗磷脂酶A2受体(PLA2R)抗体对于诊断原发性膜肾病是高度特异性的。
多达70%至75%的原发性膜肾病患者对抗Pla2R呈阳性。
滴度增加,减少或消失通常先于临床状况的变化。
测试ID | Reporting Name | Available Separately | 总是执行 |
---|---|---|---|
pa2ri | 磷脂酶A2受体IFA,S | 是的 | 不 |
ELISA (PA2RE) testing is always performed initially. IFA testing (PA2RI) is performed based on the ELISA results. If ELISA results are greater than or equal 2 or less than or equal to 20 the IFA testing will reflex on.
Enzyme-Linked Immunosorbent Assay (ELISA)
抗Pla2r
PLA2R
ELISA (PA2RE) testing is always performed initially. IFA testing (PA2RI) is performed based on the ELISA results. If ELISA results are greater than or equal 2 or less than or equal to 20 the IFA testing will reflex on.
Serum
收集容器/管:
Preferred:血清凝胶
可以接受: Red top
标本Volume:1毫升
收集说明:
1. Serum gel tubes should be centrifuged within 2 hours of collection.
2.红色顶管应在收集后2小时内离心并等分。
如果不以电子方式订购,请完成,打印并发送肾脏诊断测试请求(T830)带有标本。
0.5毫升
Gross hemolysis | Reject |
脂肪血症 | 好的 |
标本类型 | 温度 | 时间 | Special Container |
---|---|---|---|
Serum | 冷藏(首选) | 14 days | |
冷冻 | 14 days | ||
Ambient | 8小时 |
区分原发性与继发膜肾病
随着时间的流逝,监测膜性肾病的患者,以了解抗Pla2R抗体水平的趋势
ELISA (PA2RE) testing is always performed initially. IFA testing (PA2RI) is performed based on the ELISA results. If ELISA results are greater than or equal 2 or less than or equal to 20 the IFA testing will reflex on.
膜性肾病(MN)是一种罕见的疾病,其中免疫复合物将沉积在肾小球地下膜上沉积,从而损害过滤屏障,从而导致蛋白尿。最近的研究表明,在大约70%的初级MN(PMN)患者中,免疫复合物由针对足细胞蛋白M型磷脂酶A2受体(PLA2R)的自身抗体组成。PLA2R自身抗体与疾病的活性和进展很好地相关。(2)抗Pla2R抗体的存在也可能用于区分PMN与其他肾病综合征的其他原因,如果无法进行活检。在等待肾脏移植的慢性肾脏疾病(CKD)患者中,较高水平的抗Pla2R可以预测移植后更可能复发的抗Pla2R。(2)Mayo临床肾脏实验室数据表明,酶联免疫吸附测定(ELISA)与间接免疫荧光测定PLA2R结果之间存在高度连接。但是,仅凭ELISA测定可能是监测随着时间的流逝,以监测膜性肾病的患者,以获取抗Pla2R抗体水平的趋势。
负:<14 ru/ml
边界:>或= 14-19 ru/ml
阳性:> 19 ru/ml
可以通过测量抗磷脂酶A2受体(PLA2R)抗体滴度来监测治疗结果。滴度增加,减少或消失通常先于临床状况的变化。因此,在肾脏移植后的临床缓解,复发或风险评估方面,抗体滴度的测定具有高预测值。
1. Beck L,Bonegio R,Lambeau G等:M型磷脂酶A2受体作为特发性膜肾病中的靶抗原。N Engl J Med 2009; 361:11-21
2. Schlumberger W,Hornig N,Lange S等人:膜肾病的鉴别诊断,具有自身抗体的磷脂酶A2受体1. Autoimmmun Rev 2014年2月; 13(2)108-113
The test kit provides microtiter strips each with 8 break-off reagent wells. In the case of positive samples, specific IgG antibodies (also IgA and IgM) will bind to the antigens. To detect the bound antibodies, a second incubation is carried out using an enzyme-labelled antihuman IgG (enzyme conjugate) catalyzing a color reaction.(Package insert: EUROIMMUN Anti-PLA2R ELISA [IgG] Kit, EUROIMMUN US, Morris Plains, NJ, V 9/23/2014)
Monday through Friday
This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.
83520
测试ID | Test Order Name | 订单loinc值 |
---|---|---|
pa2re | Phospholipase A2 Receptor ELISA, S | 73737-9 |
结果ID | 测试结果名称 | 结果lainc值
仅适用于最初由表演实验室报告的度量单位表达的结果。这些值不适用于转换为其他度量单位的结果。
|
---|---|---|
pa2re | Phospholipase A2 Receptor ELISA, S | 73737-9 |