目的：探讨血浆同型半胱氨酸(homocysteine,Hcy)及超敏 C 反应蛋白(high-sensitivity C-reactive protein,hs-CRP)表达水平与老年颈动脉粥样斑块易损性的关系,评价其对颈动脉易损斑块的预测价值。方法入选经颈动脉彩色超声检查有颈动脉内膜(IMT)增厚或颈动脉斑块的入院患者126例,同时记录患者血压、血糖、糖化血红蛋白、血脂、血浆 Hcy 及 hs-CRP 表达水平。结果依据颈动脉内膜厚度及斑块声学特点,126例患者分为颈动脉内膜增厚组37例、稳定斑块组44例及易损斑块组45例。3组间血压、血糖、糖化血红蛋白、总胆固醇、高密度脂蛋白胆固醇比较差异无统计学意义；易损斑块组血浆 Hcy、hs-CRP 及低密度脂蛋白胆固醇(LDL-C)[(22.32±8.60)μmol/L,(9.78±3.16)mg/L,(3.28±0.31)mmol/L]表达显著高于稳定斑块组[(14.26±4.22)μmol/L,(4.32±3.56)mg/L,(2.32±0.44)mmol/L]及内膜增厚组[(14.02±4.61)μmol/L,(4.22±2.37)mg/L,(2.28±0.60) mmol/L ],稳定斑块组及内膜增厚组 Hcy、hs-CRP 及 LDL-C 表达水平差异无统计学意义(P >0.05)；血浆 Hcy、hs-CRP 水平与斑块易损性呈正相关(r 值分别为0.905、0.870,P 0.05);Plasma Hcy and hs-CRP levels were positively associated with plaque progression (r = 0.905 and 0.870,respectivelty,P < 0.01 ),The higher the Hcy and hs-CRP,the more unstable carotid plaques.Conclusion Hcy and hs-CRP were associated with the instability of carotid atherosclerotic plaques and may be used to identify the plaques vulnerability.
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