Relationship between Platelet Activation Related Factors and Polymorphism of Related Genes in Patients with Coronary Heart Disease of Blood-stasis Syndrome

Objective： To comparatively study the expressive conditions of platelet activation related factors （GPⅠb, GPⅡb-Ⅲa and GMP-140） in healthy subjects and patients with coronary heart disease （CHD） of blood-stasis （BS） or non-blood-stasis （non-BS） syndrome, and to analyze the relationship between the activities of various glycoproteins and the polymorphism of genes. Methods： With case control design adopted, patients with the CHD （40 of BS, 37 of non-BS） and 39 healthy subjects for control, all fitting to the inclusion criteria, were selected in this study. The number of affected coronary branches was recorded by the contrast examination. The mean fluorescence intensity （MFI） of GPⅠb, GPⅡb-Ⅲa, and GMP-140 （CD42b, CD61, CD62p） in patients and healthy persons was measured with flow cytometry, the polymorphism of HPA-3 gene was detected by Taqman probe technique and that of HPA-2 gene was determined by gene sequencing. Results： MFI of CD61 and CD62p was higher in the CHD patients than in the healthy control, which was also higher in patients of BS syndrome than in patients of non-BS syndrome （P〈0.05）; MFI of CD42b was lower in the CHD patients than in the healthy control （P〈0.05）, but showing insignificant difference between BS and non-BS syndrome （P〉0.05）; at the same time, no significant difference of all the above-mentioned three MFI could be found in patients with various numbers of affected coronary branches, neither in patients with different genotypes at GPⅡb HPA-3 and GPⅠb HPA-2 polymorphism loci （P〉0.05）. Conclusion： （1） The activities of GP Ⅱ b-Ⅲa and GMP-140 were obviously increased in the genesis and developing process of CHD and CHD of BS syndrome, and so they could be taken as one of the objective indexes for microscopic diagnosis of BS syndrome. （2） The level of GPⅠb was lower in CHD patients than in healthy persons, but it was not a sensitive indicator for BS syndrome of CHD. （3） Levels of GP Ⅱb-Ⅲa, GPⅠb a     

Relationship between matrix metalloproteinase-9 polymorphism and acute coronary syndrome

Objective： To investigate the relationship of matrix metalloproteinase-9 polymorphism to acute coronary syndrome and its affect on the severity of coronary artery disease. Methods： By means of polymerase chain reaction （PCR） and restriction fragment length polymorphism, genotypes of 245 patients with acute coronary syndrome（ACS） and 205 healthy subjects were tested. Genotypes displaying C-1562T functional promoter polymorphism （of the MMP-9 gene） were determined. The relationship between the polymorphism of the MMP-9 gene and ACS and the severity of coronary vessels diseased was analyzed. Results： The frequency of C/T plus T/T genotypes and T allele in patients with ACS was significantly higher than that in healthy subjects （22.1% vs 12.7% and 11.4% vs 6.6% respectively）. But they were not associated with the number of coronary arteries diseased. Conclusion： The MMP-9 polymorphism may be susceptible to ACS. But there was not significant difference between the AMI and UAP subgroups.     

ANP T2238C, C-664G Gene Polymorphism and Coronary Heart Diseasein Chinese Population

The association between atrial natriuretic peptide (ANP) polymorphism and coronary heart disease (CHD) was studied in Chinese population. The genotypes of ANP T2238C and ANP C-664G were detected by polymerase chain reaction and restriction fragment length polymorphism (PCR-RFLP) methods in 158 consecutive CHD patients and 165 controls. It was found that the distribution of A2A2 genotype in CHD group was significantly higher than that in control group (P<0.05). Stepwise Logistic regression analysis revealed that male, smoking, history of hypertension, history of diabetes, family history of hypertension, high level of serum cholesterol, and ANP T2238C polymorphism were the possible risk factors in patients with CHD (P<0.05). However, there was no significant difference between the patients with CHD and the control group in the distribution of ANP C-664G polymorphism (P>0.05). The results suggest that A2A2 T2238C genotype could be one of the risk factors for CHD (P<0.05, OR: 1.80, 95 % CI: 1.03-3.15).     

Chao Yang Workshop on Organ Transplantation 2010

Background Genetic factors can influence antihypertensive response to metoprolol, and many studies focused on the relationship between the genotype in β1-adrenergic receptor and blood pressure （BP）, little was known about the association of angiotensin-converting enzyme （ACE） genotype with the therapeutic result of metoprolol. The present study aimed to investigate whether the ACE gene insertion （I） / deletion （D） polymorphism is related to the response to metoprolol in Chinese Han hypertensive patients, Methods Ninety-six patients with essential hypertension received metoprolol （100 mg once daily） as monotherapy for 8 weeks. Twenty-four hours ambulatory blood pressure monitoring and dynamic electrocardiogram were performed before and after treatment. Genotyping analysis was performed using PCR. The association of the ACE gene I/D polymorphism with variations in BP and heart rate （HR） was observed after the 8-week treatment. Results The patients with ACE gene II polymorphism showed greater reduction in 24-hour average HR than those with ID or DD polymorphisms （P=0.045）, no effect of this genotype on the reduction in seating HR or in BP was observed. After adjusting for age, gender, body mass index, BP and HR at baseline, the ACE gene I/D polymorphism was still an independent predictor for variations in 24-hour average HR. Conclusions The II polymorphism in ACE gene could be a candidate predictor for greater reduction in 24-hour average HR in Chinese Han hypertensive patients treated by metoprolol. Greater benefits would be obtained by patients with II polymorphism from the treatment with metoprolol. Larger studies are warranted to validate this finding     

Relationship between polymorphism of cystathionine beta synthase gene and congenital heart disease in Chinese nuclear families

Objective To study the relationship between polymorphism of cystathionine beta synthase （CBS） gene and development of congenital heart disease （CHD）. Methods One hundred and twenty-seven CHD case-parent triads were recruited from Liaoning Province as patient group, and 129 healthy subjects without family history of birth defect were simultaneously recruited as control group together with their biological parents. For all subjects the polymorphism of CBS gene G919A locus was examined by PCR-ARMS method, Results The frequencies of three genotypes （w/w, w/m, and m/m） in control group were 27.2%, 58,4%, and 14.4%, respectively, with no significant difference in gender. A significant difference in the allele frequency was found between CHD patients and controls, the wild allele frequency was 67,9% in patients and 55.7% in controls CHD parents＇ genotype distribution was significantly different from that in controls. Further comparison of each type of CHD showed that genotype frequencies in several CHD subtypes were significantly different from those in their corresponding controls. The results of TDT analysis showed that no allele transmission disequilibrium existed in CHD nuclear families. Conclusions CBS gene G919A mutation is associated with the development of CHD, and the mutated allele may decrease the risk of CHD.     

Polymorphism K469E of intercellular adhesion molecule-1 gene and restenosis after coronary stenting in Chinese patients

Background Inflammation is a major cause of restenosis after coronary stenting. Intercellular adhesion molecule-1 (ICAM-1) is an important adhesion molecule that plays a key role in the tight adhesion between leukocytes and vascular endothelium. The object of this study was to investigate the association between the K469E polymorphism of the ICAM-1 gene and restenosis after coronary stenting in North Chinese population. Methods The ICAM-1 K469E polymorphism was genotyped using polymerase chain reaction-restriction fragment length polymorphism method in 124 patients who had undergone coronary stenting and coronary angiography at least 3 months earlier. Information on clinical risk factors and procedure-related data were also collected. Results Of 124 enrolled patients in total, there were 72 cases of in-stent restenosis. The restenosis rate in this population was 58.1%. The frequencies of the three possible genotypes of the ICAM-1 K469E polymorphism were: KK genotype 50.8%, EE genotype 41.9%, and EK genotype 41.9%. Among restenosis patients, the frequency of the KK genotype was 58.3% and the frequency of E allele carriers was 41.7%. Among non-restenosis patients, the frequency of the KK genotype was 40.4%, and the frequency of E allele carriers was 59.6%. The distribution of these two genotype groups between restenosis and non-restenosis patients was significantly different (P=0.049). Using multivariate logistic regression, the difference between the two groups was more apparent. The odds ratio of KK homozygotes vs E allele carriers was 2.6, with 95% confidence interval 1.2-5.8 （P=0.018）. After grading of risk factors, we found that the KK genotype was a stronger predictor of in-stent restenosis in obesity or hyperlipemia patients, with an odds ratio of 9.3 and 3.7, respectively （P&lt;0.05）.Conclusion In our study population, KK homozygotes of the ICAM-1 codon 469 mutation had a higher risk of restenosis after coronary stenting, especially in the case of obese or hyperlipemia patients.     

Functional analysis of low-density lipoprotein receptor in homozygous familial hypercholesterolemia patients with novel 1439 C→T mutation of low-density lipoprotein receptor gene

Background Familial hypercholesterolemia （FH）, caused by low density lipoprotein （LDL） receptor （LDL-R） gene mutations, is associated with increased risk of premature coronary heart disease. Until now, limited molecular data concerning FH are available in China. The present study described the clinical profiles and cell biological defects of a Chinese FH kindred with novel LDL-R gene mutation. Methods The patient＇s LDL-R gene coding region was sequenced. The patient＇s lymphocytes were isolated and the LDL-R expression, binding and up-take functions were observed by immunohistochemistry staining and flow cytometry detection. The patient＇s heart and the major large vessels were detected by vessel ultrasound examination and myocardial perfusion imaging （MPI）. Results The patient＇s LDL-R expression, LDL binding and up-take functions were significantly lower than normal control （39%, 63% and 76% respectively）. A novel homozygous 1439 C→T mutation of the LDL-R gene was detected in the patient and his family. ECG showed atypical angina pectoris. Echocardiogram showed stenosis of the coronary artery and calcification of the aortic valve and its root. Blood vessel ultrasound examination showed the thickness of large vessel intima, and the vessel lumen was narrowed by 71%. MPI showed ischemic changes. Conclusions The LDL-R synthesis dysfunction of FH patients leads to arterial stenosis and calcification, which are the major phenotype of the clinical disorder. The mutation of the LDL-R gene is determined. These data increase the mutational spectrum of FH in China.     

Rosiglitazone Improving Clinical Outcomes in Type 2 Diabetes with Coronary Artery Disease after Percutaneous Coronary Intervention

Objective Rosiglitazone, an agonist of peroxisome proliferator-activated receptor-γ （PPARγ）, is an insulin- sensitizing antidiabetic agent and inhibits restenosis in animal blood vessels. This study was designed to investigate its effects on clinical outcomes of patients with type 2 diabetes and coronary artery disease （CAD） after percutaneous coronary intervention （PCI）. Methods Patients with diabetes and CAD who had undergone PCI were randomly assigned to a rosiglitazone group or a control group. Patients in the rosiglitazone treatment group were treated with rosiglitazone 1 day before PCI （4mg once daily） and treatment was continued until the 6 months follow-up; while in the control group, patients were treated with placebo 1 day before the procedure and until the 6 months follow-up. Adverse events were death, myocardial infarction and urgent target vessel revascularization within 6 months after PCI. Results Seventy patients in the rosiglitazone group and 66 patients in the control group survived during the follow-up. Baseline characteristics among patients in the two groups were well balanced. There was no significant difference in target vessels or the procedure of stent implantation. Compared with the control group, treatment with rosiglitazone was associated with a lower rate of death, myocardial infarction and urgent target vessel revascularization （5.7% vs 19.7%, P=0.013）. Conclusion Rosiglitazone could reduce the risk of the adverse cardiovascular event and improve clinical outcomes in type 2 diabetes with coronary artery disease after PCI.     

The Relationship among Polymorphism of Promotor of PAI-1 Gene,Type 2 Diabetes Mellitus,Hypertension and Coronary Heart Disease

Objective:To explore the relationship between polymorphism of PAI-1 gene and type 2 diabetes mellitus(DM} , hyperten-sion, and coronary heart disease. Methods: The polymorphism of plasminogen activator inhibitor-1 (PAI-1) gene was analyzed by PCRtechnique in 281 subjects. Results: The frequency uf 4G/ 4G genotype and 4G allele uf PAI- 1 in type 2 diabetic patients were in-creased compared with non-diabetic subjects(X2 = 6. 0 and 6. 3 respectively,P<0. 05). In DM group, the frequency of 4G/4.G geno-type and 4G allele of PAI-1 in patients with coronary heart disease were significantly increased than in patients without coronary heart dis-ease (X2 = 6. 9 and 7. 6 respectively,P<0. 05 ,P<0. 01 respecitively). In the model uf multiple factors non-conditional logistic re-gression analyses,coronary lieart disease related to age, obesity ard 'polymorphism of PAI-1(P<0. 001, P<0. 05,P<0. 01 respec-tively). Conclusion :These results suggested that the 4G allele uf PAI-1 gene might be a risk factor of type 2 diabe     

Is the use of cardiopulmonary bypass for isolated coronary artery bypass an independent predictor of mortality and morbidity in patients with severe left ventricular dysfunction?

Background Patients presenting with severe left ventricular dysfunction （SLVD） undergoing conventional coronary artery bypass grafting （CCABG） are at an increased risk of perioperative mortality and morbidity. The aim of this study was to assess the risk factors responsible for mortality and morbidity among patients with SLVD by comparing CCABG and oft-pump coronary artery bypass surgery （OPCAB）.
Methods We retrospectively evaluated 186 consecutive patients with SLVD who underwent coronary artery bypass grafting （CABG）, including 102 by CCABG and 84 by OPCAB. Registry database, medical notes, and charts were studied for preoperative and postoperative data of the patients. Different variables and risk factors （preoperative, intraoperative, and postoperative） were evaluated and compared. The morbidity and mortality outcomes were compared in the two groups. The follow-up results and quality of life were assessed after surgery.
Results The two groups had similar percentage of patients with preoperative high-risk profiles and no significant differences were found between groups in baseline variables such as age or comorbidities. There was a significant difference in the number of grafts used between the two groups. CCABG patients received （3.6±0.5） grafts per patient, while OPCAB patients had （2.7±0.6） grafts （P 〈0.05）. Completeness of revascularization was also significantly different between the two groups （CCABG 91.1% vs OPCAB 73.8%, P 〈0.05）. The hospital mortality was similar in the two groups （4.8% in OPCAB vs 5.9% in CCABG）. The risk-adjusted mortality, according to the calculated propensity score, did not reach statistical significance in the two groups. In this study, OPCAB seemed to have a beneficial effect on reducing reoperation for bleeding, blood transfusion requirement, and the length of stay at ICU. But the incidence of perioperative myocardial infarction was more common in the off-pump group （P 〈0.05）. The degree of improvement in angina and qual     

Association of polymorphisms in angiotensin-converting enzyme and type 1 angiotensin II receptor genes with coronary heart disease and the severity of coronary artery stenosis

Summary To explore the relation of angiotensin-converting enzyme (ACE) and angiotensin II type 1 receptor (AT1R) gene polymorphism with coronary heart disease (CHD) and the severity of coronary artery stenosis, 130 CHD patients who underwent coronary angiography were examined for the number of affected coronary vessels (⩾75% stenosis) and coronary Jeopardy score. The insertion/deletion of ACE gene polymorphism and AT1R gene polymorphism (an A→C transversion at nucleotide position 1166) were detected by using polymerase chain reaction (PCR) and restriction fragment length polymorphism (RFLP) in CHD patients and 90 healthy serving as controls. The results showed that DD genotype and of ACE were more frequent in CHD patients than that in control group (38.5% vs 14.4%, P<0.001). The frequency of the AT1R A/C genotypes did not differ between the patients and the controls (10% vs 13.1%, P>0.05). The relative risk associated with the ACE-DD was increased by AT1R-AC genotype. Neither the number of affected coronary vessels nor the coronary score differed among the ACE I/D genotypes (P>0.05). But the number of affected coronary vessels and the coronary score were significantly greater in the patients with the AT1R-AC genotype than in those with the AA genotype (P<0.05). In conclusion, DD genotype may be risk factor for CHD and MI in Chinese people, and is not responsible for the development of the coronary artery stenosis. The AT1R-C allele may increase the relative risk associated with the ACE-DD genotype, and may be involved in the development of the stenosis of coronary artery.     

Association of Polymorphisms in Angiotensin-converting Enzyme and Type 1 Angiotensin Ⅱ Receptor Genes with Coronary Heart Disease and the Severity of Coronary Artery Stenosis

To explore the relation of angiotensin-converting enzyme (ACE) and angiotensin Ⅱ type 1 receptor (AT1R) gene polymorphism with coronary heart disease (CHD) and the severity of coronary artery stenosis, 130 CHD patients who underwent coronary angiography were examined for the number of affected coronary vessels (≥75% stenosis) and coronary Jeopardy score. The inser- tion/deletion of ACE gone polymorphism and ATIR gene polymorphism (an A→C transversion at nucleotide position 1166) were detected by using polymerase chain reaction (PCR) and restriction fragment length polymorphism (RFLP) in CHD patients and 90 healthy serving as controls. The re- sults showed that DD genotype and of ACE were more frequent in CHD patients than that in control group (38.5% vs 14.4%, P<0.001). The frequency of the AT1R A/C genotypes did not differ between the patients and the controls (10% vs 13.1%, P0.05). The relative risk associated with the ACE-DD was increased by ATIR-AC genotype. Neither the number of affected coronary vessels nor the coro-nary score differed among the ACE I/D genotypes (P0.05). But the number of affected coronary vessels and the coronary score were significantly greater in the patients with the AT1R-AC genotype than in those with the AA genotype (P<0.05). In conclusion, DD genotype may he risk factor for CHD and MI in Chinese people, and is not responsible for the development of the coronary artery stenosis. The AT1R-C allele may increase the relative risk associated with the ACE-DD genotype, and may be involved in the development of the stenosis of coronary artery.     

血管紧张素转换酶2基因9570A/G多态性与冠状动脉狭窄程度的相关分析

目的:探讨皖北地区汉族人群血管紧张素转换酶2(ACE2)基因9570A/G多态性与冠心病(CHD)患者冠状动脉狭窄程度的关系。方法:采用聚合酶链反应-限制性片段长度多态性(PCR-RFLP)技术检测120例CHD患者ACE2基因多态性,并根据冠脉造影病变支数和Genisini积分进行基因型和等位基因频率分析比较。结果:在男性CHD组中,9570G基因型者冠状动脉病变支数和Genisini积分均多于9570A基因型者(P0.05);在女性CHD组中,不同基因型与冠脉病变支数及Genisini积分无明显不同(P0.05)。结论:ACE2基因9570A/G多态性与皖北地区汉族人群男性CHD冠脉狭窄程度具有一定关系,与女性无明显关系。     

血管紧张素转换酶基因多态性与冠心病及其冠状动脉粥样硬化病变程度的关系

目的：研究汉族人血管紧张素转换酶（ACE）基因多态性与冠状动脉造影确诊的冠心病及其冠状动脉粥样硬化病变程度的关系。方法：应用聚合酶链反应技术和遗传学方法，测定169例经冠状动脉造影确诊的冠心病患者和168例汉族正常人的ACE基因插入／缺失（I／D）多态性。比较ACEI／D多态性与冠心病及其冠状动脉病变支数和冠状动脉积分的关系。砖杲：①汉族正常人和冠心病患者的ACE基因型频率观察数与期望数差异均无显著性（P均〉0．05）；②冠心病患者ACEDD基因型频率显著高于正常人（0．296vs0．161，P〈0．01）；③冠心病患者冠状动脉单支、双支、多支病变组比较，ACE基因型与等位基因频率差异均无显著性（P均〉0．05）；④冠心病患者的冠状动脉积分在ACE基因型间差异无显著性（P〉0．05）。砖论：ACE基因缺失多态性与冠心病有关，与冠状动脉粥样硬化病变程度无关。     

POLYMORPHISM OF ANGIOTENSIN-CONVERTING ENZYME GENE AND GENETIC SUSCEPTIBILITY TO ASTHMA WITH FAMILIAL AGGREGATION

Objective. Angiotensin-converting enzyme (ACE) plays a key role in the metabolism of angiotensin Ⅱ (AT Ⅱ) and inactivation of bradykinins and tachykinins, which are potent bronchialconstrictors and mediators of inflammation asthma, and ACE is heavily expressed in the lungs. An insertion-deletion (D/I) polymorphism of ACE gene has been shown to be associated with levels of ACE. We investigate whether the polymorphism of ACE gene is associated with asthma and bronchial responsiveness.Methods. A case-control study was carried out in 50 asthmatics, 7 families with at least 2 asthmatic individuals, and 50 healthy subjects. The insertion/deletion (I/D) polymorphism of ACE gene was amplified by polymerase chain reaction (PCR). Methacholine brocho-provocation and pulmonary function tests were performed in all asthmatics. Results. There was an higher gene frequency of DD genotype of ACE gene in asthmatic subjects and families individuals compared with healthy subjects (46%, 53% vs 16%, P＜0.05; odd ratio 4.98). Anhigher prevalence of DD genotype of ACE was in patients with bronchial hyperresposiveness (BHR) (67%vs 33%, P＜0.05; odd ratio 3.8). Accordingly, the mean values of FEV1% and FEV1/FVC were higher in asthmatics carrying non-DD alleles than patients with DD genotype (73.78% vs 56.56%, P＜0.05; 79.19% vs 69.29%, P＜0.05, respectively).Conclusion. These results suggested that DD allele of ACE genotype was significantly involved in genetic susceptibility to asthma. DD genotype of ACE might be a risk factor for the degree of airway obstruction, it could also be implicated in pathogenesis of bronchial hyperresponsiveness.     

糖尿病患者结合珠蛋白基因多态性与冠脉狭窄相关性研究

目的探讨糖尿病患者结合珠蛋白基因多态性与冠状动脉狭窄严重程度的相关性。方法选择98例糖尿病合并冠心病患者以及77例单纯糖尿病患者,采用PCR—SSP技术检测结合珠蛋白基因型,据此对糖尿病合并冠心病患者进行分组,采用Gensini冠状动脉评分系统（Gensini积分）对冠状动脉的狭窄程度进行评分。结果糖尿病合并冠心病组Hp基因型分布与单纯糖尿病组相比差异有统计学意义,表现为Hp2—2基因型在糖尿病合并冠心病组的频率明显高于单纯糖尿病组（0．55vs0．35,P〈0．05）。糖尿病合并冠心病组间,Hp2—2基因型组的Gensini积分明显高于Hpl-1／Hpl-2基因型组（P〈0．05）。结论Hp2—2基因型可能与糖尿病患者冠心病的发生相关。且与糖尿病患者冠脉狭窄的严重程度相关。     

海南汉族和黎族冠心病人群ACE基因多态性的对比分析

目的探讨ACE基因插入,缺失（D／I）多态性在海南汉、黎族冠心病中的意义。方法采用聚合酶链反应（PCR）方法。对海南汉族150例冠心病人及150例汉族正常人、150例黎族冠心病人及150例黎族正常人的ACE基因D／I多态性进行检测,观察DD、DI、II基因型频率,并对所有普通PCR定为DD型的样本进行插入特异性PCR检测,以减少误分型率,同时检测其血脂、裁脂蛋白、血压、血糖等,并经多元逐步回归分析了解引起冠心病的危险因素。结果汉、黎族冠心病组的DD基因型频率较各自对照组高（P〈0．05）,而汉、黎族冠心病组间的比较DD、DI、II基因频率比较无显著差异。经多元逐步回归分析显示：汉、黎族冠心病组ACE基因DD基因型频率增高,HDL-C降低,汉族冠心病组TG水平升高。结论ACE基因DD基因型频率增高与冠心病有关,海南汉、黎族冠心病ACE基因多态性的易感性一致。     

血管紧张素转换酶、内皮型一氧化氮合酶和载脂蛋白E基因多态性与冠心病的相关性

 [目的]研究血管紧张素转换酶（ACE）基因插入/缺失多态性、内皮型一氧化氮合酶（eNOS）基因G894T多态性和载脂蛋白E（ApoE）基因多态性与冠状动脉粥样硬化性心脏病（冠心病）的关系.[方法]应用基因芯片技术分析133例冠心病患者和122例对照者ACE、eNOS和ApoE基因多态性,对比两组基因型及等位基因频率.[结果]冠心病组ACE DD基因型频率比对照组显著升高,28.6% vs 13.1%,P＜0.01,ACE基因多态性与冠心病危险性相关.两组eNOS和ApoE基因型频率差异无统计学意义（P＞0.05）,eNOS和ApoE基因多态性与冠心病危险性无明显相关.[结论]ACE基因多态性可能是中国人冠心病的危险因素,基因芯片技术可能是研究多种易感基因与冠心病相关性的一种高效、敏感的方法.     

Carotid remodeling of hypertensive subjects and polymorphism of the angiotensin-converting enzyme gene

Itisknownthatlargearteriespass,bufferandsecrete ,andthesefunctionsregulatethenormaloperationofthecardiovascularsystem Importantfunctionalandmorphologicalchangesofthelargearteriesexistinhypertension Compliance ,stiffnessanddistensibilityareoftenusedforfunctionalevaluationandintima mediathickness (IMT)isanimportantparameterformorphologicalstudy Manyriskfactorscancontributetochangesinthestructureandfunctionoflargearteries,andtodisordersofthecardiovascularsystem Numerousstudieshaveexaminedtheeff…     

回、汉族冠心病与血管紧张素转换酶基因多态性的相关性研究

目的探讨血管紧张素转换酶基因插入/缺失多态性与宁夏回、汉族冠心病的相关性。方法运用聚合酶链反应技术对宁夏90例回族(冠心病组、对照组各45例)、80例汉族(冠心病组、对照组各40例)进行血管紧张素转换酶基因多态性检测,并进行分析比较。结果回族冠心病组DD基因型高于回族对照组(P<0.05),汉族冠心病组和对照组ACE基因型分布比较未出现统计学意义(P>0.05)。结论血管紧张素转换酶基因I/D多态性与回族冠心病存在一定关系。