血浆同型半胱氨酸水平及MTHFR基因多态性与中青年脑卒中的相关研究

目的探讨中青年脑卒中与血浆同型半胱氨酸(homocysteine Hcy)水平及亚甲基四氢叶酸还原酶(methylenetetrahydrofolate reductase MTHFR)基因多态性的关系.方法利用多聚酶链反应-限制性内切酶片段长度多态性技术(PCR-PFLP)分析73例中青年脑卒中患者及134例老年脑卒中患者与27例中青年及38例老年正常对照人群MTHFR基因突变情况,并应用高效液相色谱(HPLC)法检测其血浆Hcy水平、放射免疫法测定叶酸、VitB2水平加以对照分析.结果中青年脑卒中组血浆Hcy水平(22.36±10.99μmol/L)及老年脑卒中组血浆Hcy水平(19.41±10.32μmol/L)均高于各自对照组(11.49±5.05μmol/L)及(12.26±5.24μmol/L),差异有显著性(P＜0.01),且中青年脑卒中组中血浆Hcy升高的比例(58%)显著高于老年脑卒中组(43%)(x2=4.69,P＜0.05).MTHFR有三种基因型,中青年脑卒中组及对照组C/C型C/T型T/T型分别为(0.25、0.44、0.31)及(0.52、0.32、0.16),两组相比差异有显著性(x2=8.51,P＜0.05);而老年脑卒中组及对照组分别为(0.35、0.46、0.19)及(0.52、0.32、0.16),两组相比无显著差异(x2=3.96,P＞0.05).各组MTHFR的T/T基因型血浆Hcy水平与C/C型比较有显著差异(P＜0.01),两脑卒中组MTHFR的C/T基因型血浆Hcy水平与C/C型比较也有显著差异(P＜0.05),且叶酸VitB12水平较各自对照组显著下降(P＜0.01),老年脑卒中组较中青年组叶酸水平降低更显著(P＜0.05).结论血浆Hcy水平升高是脑血管病的重要危险因索,MTHFR基因突变及叶酸VitB12变化均是血浆Hcy升高的重要影响因素,对于中青年患者意义更大.     

MTHFR基因多态性及同型半胱氨酸与青年脑血管病的关系

目的:研究Ns,N10-亚甲基四氢叶酸还原酶(MTHFR)基因多态性及血浆同型半胱氨酸(Hcy)水平与青年脑血管病的关系。方法:研究对比40例青年脑血管病患者(首次发病年龄≤50岁)及32例健康青年人的MTHFR基因多态性及血浆Hcy水平。结果:(1)对照组及病例组T/T纯合子率分别为37.5％和22.5％;T等位基因频率分别为60.9％和51.3％,差异均无显著统计意义(均P>0.05)。(2)病例组血浆Hcy几何均值(11.0±2.3μmol/L)显著高于对照组(8.0±1.4μmol/L,P<0.05)。(3)所有受试者中T/T组Hcy值高于C/C组(10.4μmol/L和7.6μmol/L),但差异无显著性(P>0.05)。结合叶酸考虑,进一步将所有受试者按叶酸中位数水平分组。叶酸中位数以下组中,T/T组Hcy值显著高于C/C组(P<0.05);而叶酸中位数以上组中,T/T组Hcy值与C/C组无显著差异。(4)血浆Hcy与叶酸、维生素B12呈显著负相关,与肌酐呈显著正相关。吸烟者血浆Hcy水平显著高于不吸烟者(P<0.05)。结论:(1)本组人群MTHFR基因C677T突变的纯合子在低叶酸状态下可引起血浆Hcy水平显著增高,但与青年脑血管病无显著关系。MTHFR基因677TT纯合突变可能为健康青年人脑血管的保护因素。(2)血浆Hcy水平与青年脑血管病的发生密切相关。(3)叶酸、维生素B12肌酐、吸烟是Hcy的非遗传影响因素。     

脑血管病患者血浆同型半胱氨酸水平及MTHFR基因多态性分析

目的探讨血浆同型半胱氨酸(homocysteine Hcy)水平与脑血管病的关系及其水平升高的遗传和营养因素.方法对130例脑梗死和77例脑出血患者及65例正常对照者采用高效液相色谱(HPLC)法检测血浆Hcy水平、放射免疫法测定叶酸、VitB12水平,运用多聚酶链反应-限制性内切酶片段长度多态性技术(PCR-RFLP)分析亚甲基四氢叶酸还原酶(methylenetetrahydrofolate reductase MTHFR)基因多态性,并加以对照分析.结果脑梗死组、脑出血组血浆Hcy水平分别为19.87±11.67 μmol/L、20.15±10.12 μmol/L,均显著高于对照组11.41±3.28 μmol/L(P<0.01);而脑梗死组与脑出血组间无显著差异(P>0.05).MTHFR有三种基因型,脑梗死组、脑出血组和对照组C/C型基因频率分别为0.39、0.46、0.53,C/T型分别为0.35、0.31、0.30,T/T型分别为0.26、0.23、0.17,T等位基因频率分别为0.43、0.39、0.32,各基因型及等位基因频率无显著差异(P>0.05).各组中T/T基因型血浆Hcy水平与C/C型比较差异有显著性(P<0.01),而病例组中C/T型血浆Hcy水平与C/C型相比亦有显著差异(P<0.01).脑梗死组与脑出血组叶酸、VitB12水平显著低于正常对照组(P<0.01).结论血浆Hcy水平升高是脑血管病的主要危险因素.MTHFR基因677位点碱基C→T突变可能是血浆Hcy水平升高的主要影响因素,但与脑血管病的直接关系有待进一步研究,而叶酸 VitB12与Hcy水平也有关联.     

脑梗死患者与其血浆同型半胱氨酸水平及MTHFR基因关系的研究

目的探讨脑梗死(CI)患者与其血浆同型半胱氨酸(homocystine,HCY)水平及N5+10-亚甲基四氢叶酸还原酶(MTHFR)基因的关系.方法应用高效液相色谱仪和电化学检测法测定1998-02-2001-02收治的84例CI患者和78名正常老年人血浆总HCY水平,运用多聚酶链反应-限制性内切酶片段长度多态性技术(PCR-RFLP)检测MTHFR基因多态性,同时测定血浆叶酸及维生素B12水平.结果CI患者血浆总HCY水平显著高于正常对照组MTHFR基因型有3种,即纯合子(T/T)型、杂合子(T/C)型、纯合子(C/C)型.3组基因型和等位基因频率相比,差异均无显著性;CI组血浆叶酸及维生素B12水平明显低于正常对照组(P＜0.05).结论高HCY血症可能是CI患者发病的一个新危险因素.     

血浆同型半胱氨酸水平及其代谢酶基因多态性与脑梗死的关系

目的　探讨血浆同型半胱氨酸 (Hcy)水平、5 ,10 亚甲基四氢叶酸还原酶 (MTHFR)和胱硫醚 β合成酶 (CBS)基因多态性与脑梗死的关系。 方法　用高效液相色谱仪HPLC FD法和PCR 限制性内切酶片段长度多态性分析及扩增阻滞突变体系法检测 87例动脉粥样硬化性血栓性脑梗死患者和 80例对照者血浆Hcy浓度和MTHFR及CBS基因型。 结果　病例组和对照组平均空腹血浆Hcy浓度分别为 (15 3± 4 3) μmol/L和 (11 3± 3 9) μmol/L ,差异有显著意义 (P <0 0 0 1) ;两组基因型分布、纯合子突变率及等位基因频率差异无显著意义 ;血浆Hcy浓度与MTHFR基因型、CBSG919A基因型、CBST833C基因型、性别和血浆肌酐浓度相关。结论　血浆Hcy浓度升高是脑梗死的独立危险因素 ,单纯的MTHFR和CBS突变并非脑梗死的危险因素。     

血浆同型半胱氨酸水平与脑卒中关系探讨

目的　探讨血浆同型半胱氨酸 (Homocysteine ,HCY)水平与脑卒中之间的关系。方法　检测健康人与脑卒中患者的血浆HCY水平 ,统计高HCY卒中患者与正常HCY卒中患者伴随的脑卒中危险因素状况 ,进行对比分析。结果　脑卒中组HCY水平(2 8 2 4± 6 62 ) μmol/L ,对照组 (9 16± 2 3 4) μmol/L ,有显著差异 (P <0 0 5 ) ;脑卒中组高HCY血症发生率 3 8% ,对照组 5 % ,有显著性差异 (P <0 0 1)。高HCY卒中患者与正常HCY卒中患者伴随的吸烟、高血压病、糖尿病及高血脂症的状况无显著性差异 (χ2 =0 3 8,0 0 8,0 47,1 0 8;P >0 0 5 )。结论　脑卒中患者血浆HCY水平升高 ,高HCY血症是脑卒中的独立危险因素。     

血浆同型半胱氨酸及MTHFR基因多态性与颅内动脉粥样硬化的相关性研究

目的评价血浆半胱氨酸(Hcy)及亚甲基四氢叶酸还原酶(MTHFR)C677T基因多态性与非心源性脑梗死患者颅内动脉粥样硬化性大血管病变(LVD)的关系。方法共纳入非心源性脑梗死患者552例,测定血浆同型半胱氨酸浓度、MTHFR C677T基因型、脑核磁共振及核磁共振脑血管成像造影,以评价颅内动脉狭窄-闭塞程度和数目积分(LVD积分)。结果纳入552例脑梗死患者中,MTHFR C677T基因型中CC基因型148例(26.8%),CT基因型293例(53.1%),TT基因型111例(20.1%),基因型分布符合Hardy-Weinberg遗传平衡(χ~2=2.371,P0.250);合并颅内动脉狭窄342例,无颅内动脉狭窄210例,颅内动脉狭窄组血浆Hcy浓度显著高于无颅内动脉狭窄组(t=10.502,P=0.032),组间MTHFR C677T基因型分布有显著性差异(χ~2=7.066,P=0.039),多元回归分析显示,高Hcy血症为急性脑梗死患者存在颅内动脉狭窄的独立危险因素(OR1.650,95%CI 1.123～3.021,P=0.034),MTHFR C677T的TT基因型并非为颅内动脉狭窄的独立危险因素(OR1.015,95%CI 1.010～2.532,P=0.079);MTHFR C677T不同基因型组间血浆Hcy浓度有显著性差异(F=7.283,P 0.001),LVD积分无显著性差异(F=2.993,P=0.067),血浆Hcy浓度与颅内血管LVD积分呈正相关关系(r=0.365,P=0.009),高Hcy血症与颅内动脉LVD积分相关(OR1.531,95%CI 1.172～1.463,P=0.040)。结论高同型半胱氨酸血症与颅内动脉LVD具有相关性,MTHFR C677T基因多态性与高同型半胱氨酸血症有相关性,但与颅内动脉动脉粥样硬化无相关性。     

血浆同型半胱氨酸及MTHFR多态性与动脉粥样硬化性血栓性脑梗死

目的 探讨血浆同型半胱氨酸(HCY)及N~(5,10)-亚甲基四氢叶酸还原酶(MTHFR)基因多态性与脑血栓形成的关系。方法 应用高效液相色谱-荧光法(HPLC-FD)和聚合酶链(PCR)限制性内切酶片段长度多态性分析检测87例急性脑血栓形成患者和80例对照者血浆HCY浓度和MTHFR基因型。结果 病例组空腹血浆HCY浓度(15.28±4.33umol/L)较对照组(11.32±3.86umol/L)高(P<0.001);MTHFR纯合子血浆HCY浓度(20.41±3.74umol/L)较杂合子(14.13±4.50umol/L)和野生型(12.57±4.19umol/L)高(P=0.001 and P<0.001);两组纯合子突变率分别为4.60％和3.75％(P=0.910)。结论 MTHFR突变致高HCY血症,高HCY血症而非MTH-FR突变是脑血栓形成的独立危险因素。     

血浆同型半胱氨酸水平与脑卒中的关系

目的　探讨脑卒中与血浆同型半胱氨酸 (Hcy)水平的关系。 方法　采用高效液相色谱分析法和荧光检测法对脑卒中组 10 2例和对照组 80例血浆Hcy水平进行测定 ,并比较高Hcy血症与高血压病、冠心病、高脂血症的关系 ,以及与血浆内VitB12 和叶酸水平的关系。结果　脑卒中组有 5 3例伴Hcy升高 ,占5 1.9% ,平均血浆Hcy浓度 2 0 .6± 8.7μmol/L ,明显高于对照组10 .1± 3.2 μmol/L(P <0 .0 1)。脑卒中患高血压病者 5 7例和患冠心病者 4 9例分别有 35例和 2 8例伴高Hcy血症 ,分别占6 1.4 %和 5 7.1% ,总胆固醇、甘油三脂升高和高密度脂蛋白胆固醇降低伴高Hcy血症者分别为 9例、2 3例和 33例 ,占4 7.4 % (9/ 19)、6 9.7% (2 3/ 33)和 5 7.9(33/ 5 7)。另外 ,脑卒中患者有 2 4例伴叶酸浓度下降 ,其中 2 2例伴高Hcy血症 ,占91.7% ;有 4 2例伴VitB12 浓度减低 ,其中 37例伴高Hcy血症 ,占88.1%。结论　高Hcy血症与脑卒中发病关系十分密切 ,导致高Hcy血症的原因可能是血浆内叶酸和VitB12 的降低。     

血清同型半胱氨酸水平与青年缺血性脑卒中的关系

目的观察青年缺血性脑卒中患者血清同型半胱氨酸(homocysteine,Hcy)水平,探讨其与颈动脉硬化的相关性。方法青年缺血性脑卒中患者64例,对照组为与脑血管病无关的同期住院患者50例,所有研究对象测空腹血糖(FBS)、血脂及Hcy水平,并应用彩色多普勒超声检测其颈动脉。比较脑卒中组与对照组、颈动脉硬化组与颈动脉正常组血清Hcy水平变化。结果脑卒中组和对照组血清Hcy水平升高者分别有38例和8例,占59.38%和16%;血清Hcy水平分别为(17.07±7.68)μmol/L和(10.12±3.27)μmol/L,2组比较差异有统计学意义(P均0.001)。脑卒中组中伴颈动脉粥样硬化的患者Hcy水平明显高于无颈动脉粥样硬化者(P0.05)。脑卒中患者Hcy水平与血脂无相关性,与颈动脉内膜中层厚度(inti mal—media thickness,I MT)呈显著正相关性(r=0.824,P0.001)。结论高Hcy血症可能是青年缺血性脑卒中的重要独立危险因素之一,与早发性颈动脉粥样硬化的形成有关。测定血清Hcy水平和颈部血管彩超检查有助于其早期诊断和防治。     

MTHFR基因C677T位点突变及高同型半胱氨酸血症和血管性痴呆的发生相关性

目的研究血浆同型半胱氨酸(Hcy)浓度及亚甲基四氢叶酸还原酶(MTHFR)基因多态性与血管性痴呆(VaD)的关系。方法选取83例VaD患者作为观察组和81例非痴呆脑梗死患者作为对照组,分别测定两组患者的MTHFR基因多态性、Hcy浓度、维生素B12和叶酸水平,根据简易精神状态检查量表(MMSE)评定VaD患者痴呆程度,对指标进行比较和相关性分析。结果 MTHFR基因TT纯合子在观察组VaD患者的分布频率明显高于对照组,差异具有统计学意义(P0.05);两组患者的MTHFR基因C、T等位基因分布频率差异具有统计学意义(P0.05)。观察组VaD患者的血浆Hcy浓度明显高于对照组,其血清叶酸与维生素B12浓度明显低于对照组,VaD患者的血浆Hcy水平随着痴呆程度的增加而明显提高,差异均具有统计学意义(P0.05)。VaD患者血浆Hcy水平与自身痴呆程度呈正相关(r=0.452,P0.05),与MMSE评分呈负相关(r=-0.246,P0.05)。结论MTHFR基因C677T突变及高水平Hcy与VaD的发生、发展相关,高Hcy血症是VaD发病的一个重要因素。     

聚集素基因多态性与脑卒中后血管性痴呆的相关性分析

目的 探讨聚集素基因多态性与脑卒中后血管性痴呆的关系。方法 选取2019年12月-2020年12月本院收治的88例脑卒中后血管性痴呆患者作为观察组,并选取同期体检健康的60例健康者作为对照组,采用竞争性等位基因特异性聚合酶链反应(Kompetitive allele specific polymerase chain reaction, KASP)基因分型检测技术和基因测序法测定聚集素基因多态性(rs11136000和rs9331888位点基因亚型和等位基因分布频率),分析聚集素基因多态性与脑卒中后血管性痴呆的相关性。结果 2组基因分布符合哈代-温伯格(Hardy-Weinberg)平衡(F值分别为0.439和0.546,P>0.05),2组基因型分布频率达到基因遗传平衡标准,可体现人群基因分布情况,样本具有代表性,且观察组聚集素基因rs11136000位点TT基因型(1.14%)、TG基因型(32.95%)和T等位基因(43.18%)分布频率显著低于对照组的8.33%、50.00%、60.00%,而GG基因型(65.91%)和G等位基因(97.73%)分布频率显著显著高于对照组...     

内皮源性一氧化氮合酶基因多态性与缺血性脑卒中相关性研究

目的通过病例对照研究,探讨内皮源性一氧化氮合酶(eNOS)基因多态性与缺血性脑卒中的关系。方法采用聚合酶链反应(PCR)和限制性片断长度多态性(RFLP)技术,对452例缺血性脑卒中患者和153例健康对照人群的eNOS基因rs3918181位点进行基因多态性检测。结果大动脉粥样硬化型脑梗死组的基因型与等位基因频率与正常对照组比较P>0.05,无统计学意义。腔隙性脑梗死组eNOS基因AA AG基因型频率明显高于对照组,相对于GG基因型,暴露于AA AG基因型人群的OR值为1.644(95%CI 1.124～2.405)。腔隙性脑梗死A等位基因频率也显著高于对照组,相对于G等位基因,A等位基因OR值为1.419(95%CI 1.061～1.898)。结论内皮源性一氧化氮合酶(e-NOS)基因rs3918181位点多态性与腔隙性脑梗死相关;A等位基因可能增加中国汉族人罹患腔隙性脑梗死的风险。     

Elevated plasma homocysteine in acute stroke was not associated with severity and outcome: stronger association with small artery disease

Abstract Homocysteine increases in the acute phase of ischaemic stroke and from the acute to the convalescent phase, suggesting that hyper-homocysteinaemia may be a consequence rather than a causal factor. Therefore we measured homocysteine plasma levels in stroke patients in order to investigate possible correlations of homocysteine with stroke severity and clinical outcome. Further we looked for eventual differences in stroke subtypes. We prospectively studied plasma homocysteine levels in acute stroke patients admitted to the stroke unit of our department. Seven hundred and seventy-five ischaemic stroke patients, 39 cerebral haemorrhages and 421 healthy control subjects have been enrolled. Stroke severity and clinical outcome were measured with the Scandinavian Stroke Scale, the Rankin Scale and the Barthel Index. Stroke severity by linear stepwise regression analysis was not an independent determinant of plasma homocysteine levels. Homocysteine was not correlated with outcome measured by the Barthel Index. Mean plasma homocysteine of both ischaemic and haemorrhagic stroke was significantly higher than controls (p<0.05). Homocysteine had an adjusted odds ratios (OR) of 4.2 (95% CI 2.77–6.54) for ischaemic stroke and of 3.69 (95% CI 1.90–7.17) for haemorrhagic stroke. Compared with the lowest quartile, the upper quartile was associated with an adjusted OR of ischaemic stroke due to small artery disease of 17.4 (95% CI 6.8–44.3). Homocysteine in the acute phase of stroke was not associated with stroke severity or outcome. Elevated plasma homocysteine in the acute phase of stroke was associated with both ischaemic and haemorrhagic stroke. Higher levels are associated with higher risk of small artery disease subtype of stroke.     

The relationship between homocysteine, cognition and stroke subtypes in acute stroke

BACKGROUND: Elevations in plasma homocysteine (Hcy) have been associated with an increased risk of stroke and dementia. The mechanisms underlying these associations remain poorly understood. OBJECTIVES: This study examines the relationships between Hcy, cognition, and stroke subtype. We hypothesize that: 1) Hcy levels are inversely related to cognition, 2) Hcy levels are unrelated to stroke subtype, and 3) stroke subtype affects cognition. METHODS: We studied 169 consenting patients admitted for acute stroke during a 4 month period. Blood was drawn for Hcy levels and the Mini-Mental State Examination (MMSE) was administered within 9 days of admission. The Oxfordshire Community Stroke Project Classification was used to characterize stroke subtypes. Correlation between Hcy and MMSE scores was examined as was the relationships between Hcy and stroke subtype, and between stroke subtypes and MMSE scores. RESULTS: A significant inverse correlation between Hcy levels and MMSE scores was demonstrated (r=-0.243, p=0.001). MMSE scores also differed according to the type of stroke, with Total or Partial Anterior Circulation Infarcts (TACI/PACI) scoring lowest (F=8.77, df=2, p<0.001). Hcy levels did not differ between the various stroke subtypes (F=0.21, df=2, p=0.81). Multivariate linear regression analysis showed that age, education, and stroke subtype, but not Hcy, were independent predictors of acute MMSE scores. CONCLUSIONS: In this study sample, there was an inverse relationship between Hcy and cognition in acute stroke patients. However, Hcy was not an independent predictor for cognition in acute stroke after other factors such as stroke subtype and patient age were taken into account. These results suggest that during the acute stage of stroke, stroke subtype is a more important factor in determining cognition than Hcy levels.     

脑动脉狭窄与同型半胱氨酸和MTHFR基因多态性的关系

目的探讨血浆同型半胱氨酸(Hcy)和5,10-亚甲基四氢叶酸还原酶(MTHFR)两个常见突变位点与脑动脉狭窄的关系。方法选择年龄、性别匹配的病例组80例,对照组55例,采用荧光偏振免疫法(FPIA)测定血浆Hcy水平,聚合酶链反应-限制片段长度多态性(PCR-RFLP)技术进行基因分型。结果病例组和对照组血浆Hcy水平分别为17.18μmol/L和12.54μmol/L,差别显著(P<0.05)。血浆Hcy水平与血管狭窄数目无关。两组MTHFR677TT及T等位基因频率差异均显著(P<0.05),1298AC/CC及C等位基因频率、677CT/1298AC频率均无显著差异。各组内677TT Hcy水平显著高于677CT或677CC型,A1298C突变对Hcy水平无明显影响。结论677TT突变可引起血浆Hcy水平显著升高,与脑动脉狭窄密切相关。A1298C突变对血浆Hcy水平及脑动脉狭窄无显著影响。     

Association between plasma homocysteine levels and obstructive sleep apnoea in patients with ischaemic stroke

We aimed to investigate the association between plasma homocysteine and obstructive sleep apnoea (OSA) syndrome in patients with ischaemic stroke. A total of 102 patients with ischaemic stroke were classified into four OSA groups based on their apnoea–hypopnoea index (AHI): absent (AHI < 5/hour); mild (5–14/hour); moderate (15–30/hour); and severe (>30/hour). The mean (±standard deviation) homocysteine levels in the four OSA groups were: absent, 8.98 ± 3.74 μmol/L; mild, 11.46 ± 3.31 μmol/L; moderate, 14.18 ± 4.36 μmol/L; and severe, 18.57 ± 4.56 μmol/L; and these differences were statistically significant (p < 0.001). The Pearson correlation analysis revealed a positive correlation between homocysteine levels and the severity of AHI (r = 0.482, p < 0.001). Multiple linear regression analysis showed that AHI and folate were independent predictors of homocysteine levels (R² = 0.539, p < 0.001, β for AHI = 0.259, β for folate = –0.400). In conclusion, the severity of OSA is significantly associated with elevated homocysteine levels in patients with ischaemic stroke, and this association is independent of other factors that cause elevation in homocysteine.     

卒中患者瘦素水平及瘦素受体基因多态性的实验研究

目的 探讨血清瘦素水平及瘦素受体基因多态性与卒中发病的关系. 方法 选择广州红十字会医院神经内科自2007年1月至2008年12月99例住院卒中患者[脑血管病(CVD)组]及97例同期住院的非卒中患者(对照组)做为研究对象,采用聚合酶链反应结合限制性片段长度多态性对2组患者进行瘦素受体基因Gln223Arg多态性进行检测,ELISA分析法检测血清瘦素水平. 结果 CVD组患者瘦素受体Gln223Arg的GG、GA、AA基因型分布频率分别为66.67%、20.20%、13.13%,与对照组的78.35%、15.46%、6.19%分布频率差异无统计学意义(P＞0.05);CVD组G和A等位基因频率分别为76.77%和25.23%,与对照组的86.08%和13.92%基因分布频率差异有统计学意义(P＜0.05).CVD组的血清瘦素水平明显高于对照组,差异有统计学意义(P＜0.05).非条件Logistic回归多因素分析表明高血压史、空腹血糖升高、TC升高、血清瘦素水平升高与卒中的发病相关. 结论 瘦素受体基因Gln223Arg的A等位基因、瘦素水平升高、高血压、空腹血糖升高、TC升高会增加卒中的发病风险.