OALib Journal期刊
ISSN: 2333-9721
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冠心病患者血浆中新型气体信号分子硫化氢的变化
, PP. 951-954
Keywords: 冠心病,h2s,气体信号分子
Abstract:
目的探讨新型气体信号分子硫化氢(h2s)在冠心病患者血浆中含量的差异及其病理生理意义。方法采用硫敏感电极法测定40例冠心病患者及17例造影正常者血浆h2s含量,并在冠心病患者分析不同临床亚型及不同冠脉病变类型血浆h2s含量的差异、血浆h2s含量与冠心病危险因素的关系。结果(1)冠心病患者血浆h2s含量[(26.10±14.27)μmol/l]远低于冠脉造影正常对照组[(51.74±11.94)μmol/l,p<0.01];(2)在冠心病患者中,不稳定型心绞痛患者血浆h2s含量[(23.60±14.41)μmol/l]和急性心肌梗死患者血浆h2s含量[(19.98±7.516)μmol/l],明显低于稳定型心绞痛患者[(38.41±14.53)μmol/l,p<0.05]。(3)冠脉双支和多支病变组血浆h2s含量分别为(16.91±7.98)μmol/l、(18.39±7.78)μmol/l,两组间无明显差异(p>0.05),但均明显低于单支病变组(33.04±15.01)μmol/l(p<0.05和p<0.01)。冠脉血管有闭塞的其血浆h2s含量明显低于单纯狭窄组[(19.04±9.55)μmol/lvs(28.24±14.85)μmol/l,p<0.05]。(4)在冠心病患者中,吸烟者血浆h2s含量明显低于不吸烟者[(27.54±10.37)μmol/lvs(32.24±15.77)μmol/lp<0.05],高血压病者含量明显低于无高血压病者[(20.36±8.69)μmol/lvs(33.77±15.86)μmol/lp<0.01];血浆h2s水平与血糖水平呈强负相关(r=-0.4936p=0.0016),与性别、年龄、胆固醇、甘油三酯、极低密度脂蛋白、高密度脂蛋白、体质量指数等无明显相关性。结论血浆中h2s含量降低可能与冠心病临床病情严重性及冠脉血管病变程度相关;血浆h2s含量的减少可能与冠心病危险因素吸烟、高血压、高血糖相关。
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