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digene HC2 CT/GC DNA Test

用于检测Chlamydia trachomatisNeisseria gonorrhoeae

特点

  • 高临床灵敏度和特异性
  • 信号扩增核酸检测具有免疫分析简洁性
  • 检测有症状和无症状的CT和GC感染

产品详情

digene HC2 CT/GC DNA Test采用微孔板规格进行核酸的体外检测,基于化学发光的信号扩增核酸杂交,可定性检测子宫颈样本中的Chlamydia trachomatis (CT)和Neisseria gonorrhoeae (GC)的DNA。

绩效

digene HC2 CT/GC DNA Test可同时定性检测Chlamydia trachomatis (CT)和Neisseria gonorrhoeae (GC) DNA,用于初始检测有症状或无症状妇女是否感染CT和/或GC。使用digene HC2 CT/GC DNA Test检测为阳性后,需要使用digene HC2 CT-ID DNA Test和digene HC2 GC-ID DNA Test进行后续检测(参见下表),以确定样本中的病原体种类。进行大体积样本检测,可使用Rapid Capture System (RCS)仪器配合digene HC2 CT/GC DNA Test。

重复检测ID验证法则
初始HC2 CT/GC DNA Test重复HC2 CT-ID DNA Test 重复HC2 GC-ID DNA Test 最终结果解读
+ + + + for CT and GC DNA
+ + for CT DNA; no GC DNA
+ + for GC DNA; no CT DNA
– for CT and GC DNA
NA NA – for CT and GC DNA
使用digene HC2 CT/GC DNA Test,样本的RLU/CO比值< 1.0说明不含有Chlamydia trachomatis或Neisseria gonorrhoeae的DNA或含有的DNA水平在检测范围以下。如果初始digene HC2 CT/GC DNA Test结果的RLU/CO比值≥1.0,说明样本呈阳性,需要进行后续的digene HC2 GC-ID DNA Test和digene HC2 CT-ID DNA Test 。digene HC2 CT/GC DNA Test检测为阳性的样本经HC2 CT-ID DNA Test和digene HC2 GC-ID DNA Test检测都为阴性的话,结果应为“无检测到的Chlamydia trachomatis或Neisseria gonorrhoeae DNA”。+ = RLU/CO ≥ 1.0; – = RLU/CO < 1.0; NA = not applicable.  

原理

digene HC2 CT/GC DNA Test是一种核酸杂交检测,通过微孔板化学发光检测进行信号扩增。含有靶标DNA的样本能与特异性CT/GC RNA鸡尾酒探针结合。获得的RNA-DNA杂交物被捕获到包被有特异性抗体的微孔板孔表面上。固定的杂交物与联结有碱性磷酸酶的特异性抗体反应,再通过化学发光底物检测。每个抗体上都连有几个碱性磷酸酶分子。多重联结抗体结合到每个捕获杂交物上,产生后续的信号扩增。由于底物被结合的碱性磷酸酶切割,激发的光在光度计上被检测为相对光单位(RLUs)。光强度可指示样本中是否存在靶标DNA。

程序

使用digene HC2 DNA Collection Device或digene Female Swab Specimen Collection Kit收集或转移子宫颈样本。使用变性剂和加热使样本变性。加入探针混合物,在杂交微板中进行杂交。杂交样本转移到捕获微板中进行捕获杂交。加入检测试剂并漂洗。加入第二种检测试剂,在光度计上检测。

Hybrid Capture Modular System提供微孔板光度计、旋转式摇床、微板加热器、自动孔板清洗仪以及Hybrid Capture Multi-Specimen Tube (MST) Vortexter,这些仪器可能在使用digene HC2 CT/GC DNA Test处理样本时会用到。

变性之后,直到样本检测,流程可在Rapid Capture System上完全自动化。检测在光度计上手动完成。

应用

digene HC2 CT/GC DNA Test用于联合定量检测子宫颈样本中的Chlamydia trachomatis (CT)和Neisseria gonorrhoeae (GC) DNA。digene HC2 CT/GC DNA Test检测为阳性时,需要使用digene HC2 CT-ID DNA Test和digene HC2 GC-ID DNA Test进行后续检测。digene HC2 CT/GC DNA Test用作初始检测,可鉴定有症状或无症状的妇女是否感染Chlamydia trachomatis (CT)和/或Neisseria gonorrhoeae (GC)。

资源

Safety Data Sheets (1)
Certificates of Analysis (1)
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