摘要
目的了解冠心病患者分泌型磷脂酶 A2(sPLA2)的变化,并通过测定 IL-8、LPA 等相关细胞因子,对 sPLA2的作用机制进行初步探讨。方法冠状动脉造影确诊的262例患者,其中急性冠脉综合征(ACS)110例,稳定性冠心病(SCHD)63例,正常患者89例,分别测定 sPLA2、白细胞介素8(IL-8)、高敏 C 反应蛋白(hs-CRP)和溶血磷脂酸(LPA)水平,并进行对比分析。结果冠心病患者sPLA2[(68±17)U/ml]、IL-8[(182±80)pg/ml]以及 LPA[(2.85±0.36)μmol/L]均明显高于对照组[sPLA2:(55±12)U/ml,IL-8:(119±33)pg/ml,LPA:(2.34±0.36)μmol/L,均 P<0.01],其中ACS 组的 sPLA2[(71±18)U/ml]、IL-8[(195±78)pg/ml]也明显高于 SCHD 组[sPLA2:(63±12)U/ml],IL-8:[(159±79)pg/ml,均 P<0.01;sPLA2与 IL-8(r=0.203,P=0.007)、LPA(r=0.658,P<0.01)、hs-CRP(r=0.231,P=0.005)均呈正相关;sPLA2≥63.75 U/ml 时,患冠心病的相对危险度为6.248(P<0.01)。结论冠心病患者 sPLA2明显升高,它可能与 IL-8共同参与冠心病的炎症发展过程,并与下游相关产物 LPA 进一步加速其进展。提示 sPLA2升高是冠心病的独立危险因素之一。
Objective To measure the serum level of secretory type Ⅱ phospholipase A2 (sPLA2) in patients with coronary heart disease and investigate the possible relationship with IL-8 and LPA. Methods A total of 110 patients with acute coronary syndrome (ACS), 63 patients with stable coronary heart disease (SCHD) group and 89 non-CHD control patients were studied. Serum levels of sPLA2, IL-8, LPA and hs- CRP were measured and the correlation among these parameters was observed. Results The levels of serum sPLA2 [ (68 ± 17 ) U/ml ], IL-8 [ ( 182 ± 80 ) pg/ml ] and LPA [ (2. 85 ± 0. 36 ) μmol/L ] were significantly higher in CHD patients than those in controls [ sPLA2 : ( 55 ± 12 ) U/ml; IL-8 : ( 119 ±33 ) pg/ml; LPA: (2. 34 ±0. 36)μmol/L, all P 〈0. 01 ], and sPLA2 and IL-8 were also significantly higher in ACS patients [sPLA2:(71 ±18) U/ml; IL-8:(195 ±78) pg/ml] than those in SCHD patients [sPLA2:(63 ±12) U/ ml ; IL-8 : ( 159 ± 79 ) pg/ml, both P 〈 0.01 ]. Serum sPLA2 level was positively correlated with hs-CRP, IL-8 and LPA ( r = 0. 203, P = 0. 007 ; r = 0. 658, P 〈 0. 01 ; r = 0. 231, P = 0. 005, respectively). The relative risk of having CHD is 6. 248 ( P 〈 0.01 ) with the sPLA2 level above 63. 75 U/ml. Conclusion Elevated serum sPLA2 level is a risk factor for CHD.
出处
《中华心血管病杂志》
CAS
CSCD
北大核心
2006年第9期812-815,共4页
Chinese Journal of Cardiology
基金
浙江省科学技术基金(20004C33045)
卫生部国际交流中心默沙东科研基金(419056-X10101)