缺血性脑卒中患者血浆中同型半胱氨酸和颈动脉斑块之间的相关性分

【摘要】 目的:探讨缺血性脑卒中患者血浆同型半胱氨酸(Hcy)和颈动脉斑块之间的关系。

方法:选取2012年1月—2013年12月本院收治的150例缺血性脑卒中患者作为研究对象,根据颈动脉狭窄程度分成中重度狭窄组、轻度狭窄组与颈动脉正常组,再随机选取同期42例健康体检者为对照组,测定并比较各组Hcy水平。

结果:中重度狭窄组Hcy水平明显高于轻度狭窄组与颈动脉正常组,且三组缺血性脑卒中患者Hcy水平均高于对照组,差异均有统计学意义(P毕业论文网   【关键词】 缺血性脑卒中血浆同型半胱氨酸颈动脉斑块; 相关性   【Abstract】 Objective:To investigate the relationship between plasma homocysteine (Hcy) and carotid plaque in patients with ischemic stroke.Method:A total of 150 cases of ischemic stroke in our hospital from January 2012 to December 2013 were selected as the research objects,they were divided into the moderate and severe stenosis group,the mild stenosis group and the normal carotid artery group according to the degree of carotid artery stenosis,and randomly selected 42 cases of healthy persons as the control group,Hcy levels were measured and compared in each group.Result:The level of Hcy in the moderate and severe stenosis group was significantly higher than those in the mild stenosis group and the normal carotid artery group,and the level of Hcy in three groups of patients with ischemic stroke were higher than that in the control control,the differences were statistically significant(P0.05),具有可比性。

1.2 方法   1.2.1 颈动脉超声检查 采用日本阿洛卡α—5彩色多普勒超声诊断仪,其探头频率是7~12 MHz,由专人操作实施两侧颈动脉检查[1]。

患者保持仰卧位,头稍向后仰且偏转向检查的对侧,分别在颈动脉分叉之前1~1.5 cm位置、分叉处或者颈动脉分叉1 cm位置测量颈动脉内膜中层厚度[2]。

如果患者较为异常,则应该对其狭窄程度实施测量,并且对最大斑块位置进行判断,其中判断标准为:(1)IMT≤0.9 mm为正常;1.0≤IMT70%[3]。

1.2.2 同型半胱氨酸检测方法 全部受试人员均于清晨空腹状态下抽取2 mL肘静脉血,放置于分离胶的试管内,以3000 r/min的转速离心5 min,分离血清,通过酶联免疫吸附法对血浆Hcy进行测定[4]。

人体正常的血浆Hcy含量为5~15 μmol/L,高出此范围则属高同型半胱氨酸血症,其中:100 μmol/L为重度Hcy血症[5]。

1.3 统计学处理 采用SPSS 17.0软件对所得数据进行统计分析,计量资料用(x±s)表示,比较采用t检验,以P参考文献   [1]高娟,高莉梅,王景艳,等.高同型半胱氨酸血症及其相关因素与青年脑梗死的关系[J].脑与神经疾病杂志,2012,10(1):25—27.   [2] Koulouridis E,Tzilianos M,Katsarou A.Homocysteine and C—reactive protein levels in haemodialysis patients[J].International Urology and Nephrology,2011,48(10):141—148.   [3]李颖,彭海.高同型半胱氨酸血症家兔动脉粥样硬化发生机制的研究[J].中国神经免疫学和神经病学杂志,2014,23(4):52—53.   [4] Song I U,Kim J S,Ryu S Y,et al.Are plasma homocysteine levels related to neurological severity and functional outcome after ischemic stroke in the Korean population[J].Journal of the Neurological Sciences,2014,5(2):68—69.   [5]林晓圳,李国强,刘世明,等.老年高血压患者颈动脉内膜中层厚度与同型半胱氨酸及心率震荡的关系[J].广东医学,2013,43(1):169—171.   [6]乔淑冬,高晓红,刘娜,等.Hcy、Hs—CRP及Fg水平在缺血性脑卒中亚型间的差异[J].中国神经免疫学和神经病学杂志,2015,30(4):89—92.   [7] Bos M J,van Goor M L,Koudstaal P J,et al.Plasma homocysteine is a risk factor for recurrent vascular events in young patients with an ischaemic stroke or TIA[J].Journal of Neurology,2015,16(2):36—38.   [8]王陇德.脑卒中筛查与防治工程:关注动脉硬化的高危因素―探求尽快降低我国脑卒中发病、死亡和伤残之策[J].中国医学前沿杂志(电子版),2011,3(3):1—3.   [9]张淑琴,喻芳芳.叶酸联合维生素B12对脑梗死合并2型糖尿病患者血浆同型半胱氨酸水平的影响[J].临床荟萃,2011,54(1):121—128.   [10]胡兆霆,侯庆臻,赵素玲,等.H型高血压患者颈动脉结构和功能变化及与亚临床炎症的相关性[J].南方医科大学学报,2012,32(8):1175—1178.   (收稿日期:2015—11—27) (本文编辑:李颖)。

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