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The Value of CSF Level of ss- amyloid Protein in the Diagnosis of Alzheimer's Disease

机译:脑脊液中β-淀粉样蛋白水平在阿尔茨海默氏病诊断中的价值

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Objective: To evaluate the diagnostic potential of cerebrospinal fluid (CSF) levels of β-amyloid protein (Aβ) as biochemical marker for senile dementia in clinical practice. Methods: Sensitive enzyme-linked immunosorbent assay (ELISA) was performed in our laboratory to detect the CSF levels of Aβ_(1-40), Aβ_(1-42) in 54 patients with Alzheimer's disease (AD), and 30 normal controls (NC). Results: The cut off value of Aβ ratio and Aβ_(1-42) concentration in NC group provided 54. 51%, 90. 00% sensitivity and 81. 25%, 84. 38% specificity respectively in diagnosis of AD. Conclusion: AD group had a significant decreased level of Aβ_(1-42) and an increased level of Aβ ratio, compared with NC group.
机译:目的:评价脑脊液中β淀粉样蛋白(Aβ)水平作为老年痴呆症生化指标的诊断潜力。方法:在我们的实验室中进行了敏感的酶联免疫吸附试验(ELISA),以检测54例阿尔茨海默病(AD)患者和30例正常对照的CSF中Aβ_(1-40),Aβ_(1-42)的脑脊液水平。 NC)。结果:NC组Aβ比值和Aβ_(1-42)浓度的临界值分别为AD诊断提供54. 51%,90。00%和81. 25%,84。38%的特异性。结论:与NC组相比,AD组Aβ_(1-42)水平明显降低,Aβ比水平升高。

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