The predictive value of serological markers Aβ1-42, sICAM-1 and VILIP-1 for vascular dementia after cerebral infarction
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摘要: 目的 探讨血清学标志物β-淀粉样蛋白1-42(Aβ1-42)、可溶性细胞间黏附分子(sICAM-1)、神经视锥蛋白样抗体1(VILIP-1)对脑梗死后血管性痴呆(VaD)的预测价值。 方法 研究对象为338例急性脑卒中患者,根据6个月内是否发生VaD分为VaD组(68例)和非VaD组(270例);均于入院次日和出院前抽取空腹肘静脉血,采用ELISA实验测定Aβ1-42、sICAM-1和VILIP-1水平;并采用ROC曲线分析Aβ1-42、sICAM-1、VILIP-1对血管性痴呆的预测价值。 结果 VaD组入院时和出院时血清Aβ1-42、sICAM-1、VILIP-1水平和NIHSS评分明显高于非VaD组;出院后3个月和6个月改良Rankin评分高于非VaD组,组间差异有统计学意义(均P<0.05)。ROC分析结果显示,入院和出院时血清Aβ1-42、sICAM-1、VILIP-1水平对VaD均有预测价值,入院时Aβ1-42、sICAM-1、VILIP-1的最佳工作点分别为87.5、408.0、11.5 ng/L,敏感度分别为52.9%、67.6%、35.3%,特异度分别为83.7%、71.9%、92.6%;出院时Aβ1-42、sICAM-1、VILIP-1的最佳工作点分别为60.0、264.0、7.5 ng/L,敏感度分别为85.3%、79.4%、64.7%,特异度分别为57.8%、61.5%、68.9%。 结论 血清学标志物Aβ1-42、sICAM-1、VILIP-1对脑梗死后VaD具有较好的预测价值。
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关键词:
- β-淀粉样蛋白1-42 /
- 可溶性细胞间黏附分子 /
- 神经视锥蛋白样抗体1 /
- 脑梗死 /
- 血管性痴呆
Abstract: Objective To explore the predictive value of serological markers β-amyloid peptide 1-42 (Aβ1-42), soluble intercellular adhesion molecule 1 (sICAM-1) and visinin like protein 1 (VILIP-1) for vascular dementia (VaD) after cerebral infarction. Methods Totally 338 patients with acute stoke were selected and divided into 2 groups according to whether attacked by VaD, including 68 cases in VaD group and 270 cases in non- VaD group. Venous blood of all the subjects was extracted to detect serum Aβ1-42, sICAM-1 and VILIP-1 levels. And the predictive value of each index was analyzed by ROC curve. Results The serum level of Aβ1-42, sICAM-1 and VILIP-1 of VaD group were all higher than non- VaD group both in hospitalization and discharging, the modified Rankin score of VaD group were both higher than non- VaD group in 3 months and 6 months after discharging, the difference between groups had statistical significance (P<0.05). ROC analysis results showed that serum Aβ1-42, sICAM-1 and VILIP-1 levels at the time of hospitalization and discharging all had predictive value for VaD. The optimal operating point of Aβ1-42, sICAM-1 and VILIP-1 levels at the time of hospitalization were 87.5 ng/L, 408.0 ng/L and 11.5 ng/L, the sensitivity were 52.9%, 67.6% and 35.3%, and the specificity were 83.7%, 71.9% and 92.6%. The optimal operating point of Aβ1-42, sICAM-1 and VILIP-1 levels at the time of discharging were 60.0 ng/L, 264.0 ng/L and 7.5 ng/L, and the sensitivity were 85.3%, 79.4% and 64.7%, the specificity were 57.8%, 61.5% and 68.9%. Conclusion Serological markers Aβ1-42, sICAM-1 and VILIP-1 have good predictive value for VaD after cerebral infarction.-
Key words:
- Aβ1-42 /
- sICAM-1 /
- VILIP-1 /
- Stroke /
- Vascular dementia
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