Acute myocardial infarction(AMI)remains a leading global cause of morbidity and mortality,with high risk of recurrent adverse cardiovascular events.Conventional diagnostic markers often lack the sensitivity needed for...Acute myocardial infarction(AMI)remains a leading global cause of morbidity and mortality,with high risk of recurrent adverse cardiovascular events.Conventional diagnostic markers often lack the sensitivity needed for early detection and prognostic stratification.Recent advances highlight the role of microRNAs(miRNAs)and their genetic polymorphisms in regulating inflammation,fibrosis,and endothelial function in atherosclerotic disease.This review summarizes evidence on circulating miRNA expression and miRNA-related single nucleotide polymorphisms as biomarkers in AMI.Literature from PubMed,Scopus,and Web of Science was evaluated,focusing on pathways involving NF-κB,interleukin-1 receptor/toll-like receptors,and JAK/STAT signaling.Circulating miRNAs such as miR-150,miR-208,miR-26a,and miR-483-5p demonstrate strong diagnostic accuracy,while polymorphisms,particularly rs2910164 in miR-146a,are consistently associated with AMI susceptibility and adverse outcomes.These findings suggest that miRNAs and their variants may serve as non-invasive tools for diagnosis and risk prediction,supporting future integration into precision cardiovascular medicine.展开更多
We sought to investigate the correlation between the -455G/A and -148C/T polymorphisms of the β-fibrinogen gene and plasma fibrinogen levels in patients with cerebral infarction and in healthy subjects among the Xinj...We sought to investigate the correlation between the -455G/A and -148C/T polymorphisms of the β-fibrinogen gene and plasma fibrinogen levels in patients with cerebral infarction and in healthy subjects among the Xinjiang Uygur and Han Chinese populations, by using polymerase chain reaction-restriction enzyme digestion analysis. Results showed that there were no statistically significant differences in the distributions of the -455G/A genotype and allele frequency between the Uygurs and the Han. Plasma fibrinogen levels in cerebral infarction patients among the Uygurs and the Han were higher than those among healthy subjects. In particular, the frequencies of the -455G/A AA and -148C/T TT genotypes were significantly higher than in healthy subjects. Individuals carrying the A or T allele had a higher incidence of cerebral infarction compared with those carrying the G or C allele. Our experimental findings indicate that the -148C/T and -455G/A polymorphisms are associated with cerebral infarction in Xinjiang Uygur and Han Chinese subjects. The susceptibility- conferring alleles are -148T and -455A, and the susceptibility-conferring genotype is -455G/A ＋ AA.展开更多
This study investigated the relationship between IL-33/ST2 signal pathway gene polymorphisms and myocardial infarction（MI） in Han Chinese. A case-control association analysis was performed on a total of 490 MI patie...This study investigated the relationship between IL-33/ST2 signal pathway gene polymorphisms and myocardial infarction（MI） in Han Chinese. A case-control association analysis was performed on a total of 490 MI patients（MI group） and 929 normal subjects（NC group）. Sequenom Mass Array and Taqman genotyping technique were used to analyze the tag single nucleotide polymorphisms（SNPs） in the genes encoding IL-33, ST2, and IL-1Ra P（rs11792633, rs1041973 and rs4624606）. The results showed that the frequencies of rs4624606 genotypes AA, TT, AT were 0.031, 0.647, 0.322 in MI group and 0.026, 0.712, 0.263 in NC group, and the allele frequencies of A and T were 0.192, 0.808 in MI group and 0.157, 0.843 in NC group. There were significant differences in rs4624606 genotypes and allele frequencies between MI group and NC group（P〈0.05）. For rs11792633, the allele frequencies of C and T were 0.45, 0.55 in MI group and 0.454, 0.546 in NC group with no significant differences found between the two groups. Compared with genotype CC＋TC, rs11792633 genotype TT had an increased risk of hypertension（P〈0.05）. However, there were no significant differences in the frequencies of rs11792633 genotypes between the two groups. No significant differences were noted in the frequencies of rs1041973 genotype and allele between the two groups. Logistic regression analysis showed that rs4624606 genotypes AT and AA＋AT were both significantly associated with MI（AT： OR=1.325, P=0.029, 95% CI=1.03–1.705; AA＋AT： OR=1.316, P=0.028, 95% CI=1.03–1.681） after factors such as age, gender, smoking, drinking, body mass index（BMI）, triglyceride（TG） and cholesterol were adjusted. Those carrying rs4624606 genotype AT or AA＋AT had an increased risk of MI. No associations were found between the polymorphisms of the other two loci with MI. It was concluded that, in the IL33/ST2 signal pathway, the A allele of rs4624606 polymorphism of IL-1Ra P gene is a potential independent risk factor for MI, and the genotypes AA＋AT and AT are associated with the incidence of MI.展开更多
This study investigated the association of apolipoprotein A5 （apoA5） gene polymorphism at position -1131T〉C with cerebral infarction in patients with type 2 diabetes. A total of 256 type 2 diabetic patients without...This study investigated the association of apolipoprotein A5 （apoA5） gene polymorphism at position -1131T〉C with cerebral infarction in patients with type 2 diabetes. A total of 256 type 2 diabetic patients without cerebral infarction （T2DM）, 220 type 2 diabetic patients with cerebral infarction （T2DMCI） and 340 healthy subjects were recruited from the same region （Hubei province, China）. The genotype of apoA5 -1131T〉C was analyzed by polymerase chain reaction, followed by restriction fragment length polymorphism （PCR-RFLP）. Total cholesterol, HDL cholesterol, LDL-cholesterol and triglycerides were quantitatively detected by using standard enzymatic tech- niques. The results showed that the prevalence of the apoA5 -1131C allele was significantly higher in T2DMCI group than that in control group （42.7% versus 31.2%, P〈0.01）. The carriers of rare C allele had higher TG levels as compared with carriers of common allele in the three groups （P〈0.01）. Logistic regression models, which were adjusted for age, gender, blood pressure, BMI, FBS, smoking, LDL-C and HDL-C, revealed that patients carrying the apoA5 -1131C allele and CC homozygotes were at high risk for T2DMCI. It was concluded that the apoA5 -1131C allele variant is an independent genetic risk factor for T2DMCI.展开更多
Objective To evaluate the correlation between the β-fibrinogen gene-455G/A polymorphism and cerebral infarction in Chinese population by means of meta-analysis. Methods Genetic association studies on evaluating the ...Objective To evaluate the correlation between the β-fibrinogen gene-455G/A polymorphism and cerebral infarction in Chinese population by means of meta-analysis. Methods Genetic association studies on evaluating the β-fibrinogen gene -455G/A polymorphism and cerebral infarction involving Chinese population published before December 2005 were collected from database of PubMed, EMBASE, and CNKI. All the data in literature were abstracted based on the defined selection criteria by two independent investigators. Publication bias was tested by funnel plot and the odd ratios of all studies were combined dependent on the result of heterogeneity test among the individual studies. The software Review Manager （Version 4.2） was used for meta-analysis. Results Eleven studies including 1405 patients and 1600 controls met the selection criteria. There was no publication bias in 11 reviewed studies. Heterogeneity test of reviewed studies showed statistically significant differences （χ^2=24.58, P=0.006） among the ORs of individual studies. The combined OR of 11 studies of susceptibility to cerebral infarction in –455A allele carriers compared with the -455G/G wild homozygotes was 1.33 （95%CI 1.04-1.71, P=0.02）. In the patients with cerebral infarction in 6 studies, the summarized average plasma fibrinogen level of allele A carrier was 0.29 g/L （95%CI 0.14-0.44, P=0.0002） higher than that of -455G/G homozygous ones. Conclusions β-fibrinogen gene -455G/A polymorphism might contribute to susceptibility of cerebral infarction in Chinese population; allele A increases the individual susceptibility to the disease.展开更多
BACKGROUND： Many international studies have shown that plasminogen activator inhibitor-1 （PAl-l） 4G/5G promoter polymorphism does not increase the risk for cerebral infarction. OBJECTIVE： Using PCR methodology and...BACKGROUND： Many international studies have shown that plasminogen activator inhibitor-1 （PAl-l） 4G/5G promoter polymorphism does not increase the risk for cerebral infarction. OBJECTIVE： Using PCR methodology and agarose electrophoresis to detect PAI-1 4G/5G promoter polymorphism in patients with recurrent cerebral infarction in the North Jiangsu Province of China, and to compare results with healthy subjects and patients with first-occurrence cerebral infarction in the same region. DESIGN, TIME AND SETTING： Non-randomized, concurrent, control trial. A total of 122 cerebral infarction patients were admitted to Xuzhou Medical College Hospital＇s Department of Neurology and Xuzhou Central Hospital＇s Department of Neurology between July 2003 and August 2006. PARTICIPANTS： The patients consisted of 63 males and 59 females, aged （62 ± 10） years. They were divided into first-occurrence （n = 58） and recurrence （n = 64） groups. In addition, 50 healthy subjects that underwent physical examination in the outpatient department, including 26 males and 24 females, aged （60 ±12） years, were selected as controls. METHODS AND MAIN OUTCOME MEASURES： PAl-1 4G/5G promoter polymorphism was detected and analyzed using PCR methodology and agarose electrophoresis. RESULTS： Significant differences were determined in terms of genotypic frequency and allele frequency of PAI-1 4G/5G promoter polymorphism, in patients with first-occurrence or recurrent cerebral infarction, when compared with healthy subjects （P 〈 0.05）. There was, however, no significant difference between the first-occurrence and recurrence groups （P 〉 0.05）. CONCLUSION： PAl- 1 4G/5G promoter polymorphism is genetic risk factor for cerebral infarction in China. However, it may be associated with recurrence of cerebral infarction in patients from the North Jiangsu Province of China.展开更多
Evidence suggests that interleukin-10（IL-10） deficiency exacerbates inflammation and worsens the outcome of brain ischemia. In view of the critical role of the single nucleotide polymorphic sites-1082（A/G） and-819...Evidence suggests that interleukin-10（IL-10） deficiency exacerbates inflammation and worsens the outcome of brain ischemia. In view of the critical role of the single nucleotide polymorphic sites-1082（A/G） and-819（C/T） in the promoter region of the IL-10 gene, we hypothesized that they are associated with cerebral infarction morbidity in the Chinese Han population. We genotyped these allelic gene polymorphisms by amplification refractory mutation system-polymerase chain reaction methods in 181 patients with cerebral infarction（cerebral infarction group） and 115 healthy subjects（control group）. We identified significant differences in genotype distribution and allele frequency of the IL-10-1082 A/G allele between cerebral infarction and control groups（χ2 = 6.643, P = 0.010）. The IL-10-1082 A allele frequency was significantly higher in the cerebral infarction group（92.3%） than in the control group（86.1%）（P = 0.015）. Moreover, cerebral infarction risk of the AA genotype was 2-fold higher than with the AG genotype（OR = 2.031, 95%CI： 1.134-3.637）. In addition, AA genotype together with hypertension was the independent risk factor of cerebral infarction（OR = 2.073, 95%CI： 1.278-3.364）. No statistical difference in genotype distribution or allele frequency of IL-10-819 C/T was found between cerebral infarction and control groups（P 〉 0.05）. These findings suggest that the IL-10-1082 A/G gene polymorphism is involved in cerebral infarction, and increased A allele frequency is closely associated with occurrence of cerebral infarction.展开更多
Objective: To explore the frequency and significance of ApoE gene polymorphisms in Chinese patients with atherosclerotic cerebral infarction (ACI). Methods: Polymerase chain reaction and gene sequencing, single nucleo...Objective: To explore the frequency and significance of ApoE gene polymorphisms in Chinese patients with atherosclerotic cerebral infarction (ACI). Methods: Polymerase chain reaction and gene sequencing, single nucleotide polymorphisms of ApoE gene were used to analyze 33 cases of patients with ACI and 35 controls. Results: The frequencies of ApoE gene single nucleotide polymorphisms 465C/G, 462C/G and 451delC in the ACI group were significantly higher than those in the control group (P<0.05). The prevalence of polymorphism 486G/T in the control group was significantly higher than that in the ACI group ( P = 0.011) . Conclusions: 465C/G,462C/G and 451delC polymorphisms might be associated with ACI.486GT allele might have protective effect on the pathogenesis of ACI.展开更多
In order to investigate the association of G＋1688A （Ser563Asn） polymorphism of platelet endothelial cell adhesion molecule-1 （PECAM-1） gene with myocardial infarction （MI） in the Chinese Han population, the G＋...In order to investigate the association of G＋1688A （Ser563Asn） polymorphism of platelet endothelial cell adhesion molecule-1 （PECAM-1） gene with myocardial infarction （MI） in the Chinese Han population, the G＋1688A polymorphism in PECAM-1 gene was detected by polymerase chain reaction-restriction fragment-length polymorphism （PCR-RFLP） method among 502 subjects, including 218 patients with MI and 284 controls. The results showed that there was significant difference in AA frequencies of genotype G＋1688A polymorphism between case and control groups （39% vs 24%, P〈0.001）. A similar trend was observed on the allele frequencies （A/G： 62% vs 49%, P〈0.001）. Among the subjects with high serum total cholesterol level or high systolic blood pressure level, the variant AA genotype was associated with high risk of MI （adjusted OR, 2.13; 95% CI, 1.08 -4.41 and adjusted OR, 2.53; 95%CI, 1.63-3.63）. The single nucleotide polymorphism （SNP） at position ＋1688 in the exon 8 of PECAM-1 gene was associated with MI and the allele A might be a risk factor for MI in the Chinese Han population.展开更多
Objective. To investigate the relationship of plasma homocysteine (Hcy) level to stroke and genetic factor to elevated plasma Hcy level.Methods. The plasma Hcy level was measured by capillary electrophoresis- ultravio...Objective. To investigate the relationship of plasma homocysteine (Hcy) level to stroke and genetic factor to elevated plasma Hcy level.Methods. The plasma Hcy level was measured by capillary electrophoresis- ultraviolet detection and the gene polymorphism of N5, N10 - methylenetetrahydrofolate reductase (MTHFR) was studied with PCR - RFLP assay in 43 patients with cortical cerebral infarction and 42 healthy controls.Results. The plasma Hcy level of the patients ( 19. 3 + 6. 0 μ mol/L) was markedly higher than that of the controls (13.7 + 5.4 μ mol/L) ( t = 4. 16, P ＜ 0. 001). There are 3 genotypes, C/C, C/T and T/T, about base - variation of MTHFR gene at locus 677. The plasma Hcy level of the subjects with T/T genotype was higher than that of subjects with other genotypes. However, the frequencies of each genotype and allele were not significantly different between the patients and the controls.Conclusions. The elevated plasma Hcy level is a risk factor for atherothrombotic cerebral infarction, and is related to the C→T mutation at locus 677 of MTHFR gene.展开更多
Objectives To investigate the relationship of the GPIa C807T dimorphism to the risk of myocardial infarction （MI） in Chinese. Methods We did a case-control study including 100 patients and 110 controls with same rac...Objectives To investigate the relationship of the GPIa C807T dimorphism to the risk of myocardial infarction （MI） in Chinese. Methods We did a case-control study including 100 patients and 110 controls with same race. An allele-specific polymerase chain reaction （PCR） was used for genotyping of C807T polymorphism. Results An apparent association was found between the T807 allele and MI among individuals younger than the mean age of 60 years （odds ratio, 2. 49 ; 95 % confidence interval, 1.08 - 6.22 ）. The T807 allele remained an independent risk factor for MI when age, sex, smoking, hypertension, diabetes, bodymass index, LDL-cholesterol and HDL-cholesterol were adjusted by logistic regression. Conclusions GPIa T807 appears to be an independent risk factor for MI.展开更多
Background One of the characteristics of atherosclerosis is a change in the content of extracellular matrix in the arterial wall. Gelatinase B, a member of the family of matrix metalloproteinase, can regulate extracel...Background One of the characteristics of atherosclerosis is a change in the content of extracellular matrix in the arterial wall. Gelatinase B, a member of the family of matrix metalloproteinase, can regulate extracellular matrix metabolismand play a role in the pathogenesis of atherosclerosis, coronary heart disease (CHD) and myocardial infarction (MI). Gelatinase B is polymorphic due to a C to T change at the position -1562 bp in the promoter region.Its relationship with gene product concentration in serum and its role in mediating the risk of CHD and MI in Germans is still unknown. Methods We enrolled 102 controls and 322 patients with angiographically documented CHD,including a sub-group of 173 patients with acute or chronic MI and 80 patients with acute coronary syndrome (ACS).All patients and controls were Germans and genotyped by polymerase chain reaction and digestion with SphI. Results We found that several classical risk factors for CHD and MI, including hypercholesterolemia and cigarette smoking,were significantly increased in CHD and MI patients compared with controls. Serum levels of gelatinase B and tissue inhibitor of metalloproteinase-1 were increased in the peripheral blood of patients with acute coronary syndrome. No significant differences in genotype or allelic frequencies between CHD, MI and control subjects of either men or women were found. Our search for a possible association of the polymorphisms with CHD and MI by logistic regression analysis was also negative. The serum concentrations of gelatinase B showed no differences between genotypes. Conclusions Our data showed that gelatinase B might provide an index of plaque activity in ACS, but gelatinase B protein was not affected by genotypes. Also, the T variant of gelatinase B was not associated with CHD or MI in Germans. (J Geriatr Cardiol 2004;1(2):114-118.)展开更多
BACKGROUND： Plasma fibrinogen （Fg） β-148C/T gene polymorphism is a risk factor for ischemic angiopathy. OBJECTIVE： To explore the frequency distribution of Fg β- 148C/T gene polymorphism and its relationship wit...BACKGROUND： Plasma fibrinogen （Fg） β-148C/T gene polymorphism is a risk factor for ischemic angiopathy. OBJECTIVE： To explore the frequency distribution of Fg β- 148C/T gene polymorphism and its relationship with plasma Fg levels in patients with cerebral infarction. DESIGN, TIME AND SETTING： Case control experiment of gene polymorphism was performed at the Central Laboratory of Qingdao University Medical College from January 2003 to June 2004. PARTICIPANTS： A total of 88 patients with cerebral infarction were recruited from the Affiliated Hospital of Qingdao University Medical College, including 52 males and 36 females, averaging （61±14） years of age In addition, 80 healthy cases served as the control group, comprising 48 males and 32 females, with an average age of （58 ± 12） years. METHODS： Blood DNA was extracted, and electrophoresis results were observed using an ultraviolet single photon image system. The frequency distribution of Fg β -148C/T was analyzed by polymerase chain reaction-restriction fragment length polymorphism method. Plasma Fg levels were measured by cerebral infarction time. MAIN OUTCOME MEASURES： Plasma Fg β -148C/T gene polymorphism and plasma Fg levels in patients with cerebral infarction. RESULTS： The frequency of the T allele, and plasma Fg levels in CC, CT, and CC＋CT genotype subgroup, were significantly greater in the cerebral infraction group, compared with the control group （P 〈 0.05）. However, there was no significant difference between the TT genotype subgroup and the control group （P 〉 0.05）. The plasma Fg levels in the CT, TT, and CT＋TT genotype groups were significantly greater than the CC genotype group （P 〈 0.05）. However, in the control group, plasma Fg levels in the TT genotype subgroup were significantly greater than the remaining genotype subgroups （P 〈 0.05）. CONCLUSION： Plasma Fg β -148C/T gene polymorphism is an important hereditary factor for differences in plasma Fg levels. The T allele plays a crucial role in influencing plasma Fg levels in cerebral infarction. Fg β - 148C/T may be a susceptibility factor for cerebral infarction.展开更多
BACKGROUND： Studies have shown that adenosine triphosphate-binding cassette transporter 1 （ABCA1） gene influences atherosclerosis. Studies have also demonstrated that cerebral infarction does not occur often in pre...BACKGROUND： Studies have shown that adenosine triphosphate-binding cassette transporter 1 （ABCA1） gene influences atherosclerosis. Studies have also demonstrated that cerebral infarction does not occur often in pre-menopausal women. It has been, therefore, assumed that sex plays a role in R219K polymorphism of ABCA1 gene and cerebral infarction. OBJECTIVE： To explore the relationship between lipid metabolism-correlated R219K polymorphism of ABCA1 gene, risk factors of cerebral infarction and lipid level, and to determine whether there were significant differences in gender between R219K polymorphism of ABCA1 gene and cerebral infarction. DESIGN, TIME AND SETTING： A multicentral and non-randomized, controlled study based on gene polymorphism was performed at the Chinese National Human Genome Center, and lipid concentrations were measured at Beijing Xuanwu Hospital. Patients with cerebral infarction and healthy subjects were enrolled from eight hospitals of six provinces of China between October 2002 and December 2004. PARTICIPANTS： There were 177 patients in the cerebral infarction group, including 119 males and 58 females, with a mean age of （60 -＋ 13） years, and 234 healthy subjects in the normal control group, including 79 males and 155 females, with a mean age of （58 ± 12） years. METHODS： R219K polymorphism of the ABCA1 gene was detected using polymerase chain reaction-restriction fragment length polymorphism, and blood lipid concentrations were simultaneously measured. MAIN OUTCOME MEASURES： Genotype and allele frequency of R219K polymorphic site, and blood lipid concentrations. RESULTS： RR genotype and R allele frequency of males in the cerebral infarction were significantly greater than males in the normal control group [RR genotype： x2 = 5.305, OR （95% CO, 2.326 （1.120 4.828）, P〈 0.05; R allele： x2= 4.219, OR （95% CO, 1.528 （1.019 2.292）, P〈 0.05]. In addition, RR genotype and R allele frequency of males were significantly greater than females in the cerebral infarction group [RR genotype： x2= 5.172, OR （95% C/）, 2.604 （1.120-6.057）, P〈 0.05; R allele： x2= 4.818, OR （95% CO, 1.652 （1.053 2.589）, P〈 0.05]. There were no significant differences between genotype and lipid concentrations between the two groups （P〉 0.05）. CONCLUSION： The RR genotype of ABCA1 R219K might be associated with onset of cerebral infarction in males, but blood lipid concentrations do not relate to R219K polymorphism.展开更多
This study examined the association of a common polymorphic allele（25G） of the low-density lipoprotein receptor-related protein1（LRP1） gene with myocardial infarction（MI）.The genotypes of LRP1 25CG（rs35282763）...This study examined the association of a common polymorphic allele（25G） of the low-density lipoprotein receptor-related protein1（LRP1） gene with myocardial infarction（MI）.The genotypes of LRP1 25CG（rs35282763） were determined in 347 MI patients and 347 age-and sex-frequency-matched controls from an unrelated Chinese Han population.Factor Ⅷ（FⅧ） levels were measured in the MI patients and controls by chromogenic assay and enzyme-linked immunosor-bent assay（ELISA）.The results showed that LRP1 25CG（rs35282763） genotype distribution did not differ significantly between patients（n=206 for 25CC,n=122 for 25CG） and controls（n=191 for 25CC,n=126 for 25CG;P0.05）.The 25G allele was not associated with a reduced risk of MI（P0.05）.Further stratifications for age,sex,and other cardiovascular risk factors did not affect the negative findings.It was concluded that the presence of the G allele at the 25CG（rs35282763） polymorphism of the LRP1 is not associated with a reduced risk of MI,and genotyping for LRP1 25CG（rs35282763） polymor-phism is not useful in assessing the individual risk of MI.展开更多
The polymorphism of apoE, an important determinant in the lipid metabolism, may be related to the atherosclerotic events. In this study, the apoE genotypes, by means of PCR AFLP assay in ...The polymorphism of apoE, an important determinant in the lipid metabolism, may be related to the atherosclerotic events. In this study, the apoE genotypes, by means of PCR AFLP assay in 42 patients with cortical cerebral infarction and 85 healthy controls were detected. The results showed that the apoE ε 3/3 genotype was more prevalent in the controls (55.29%), and ε 3/4 genotype was more common in the patients (57.14%). The frequency of ε 4 allele was more predominate in the patients than that in the controls. The ε 3/4 genotype or ε 4 allele was associated with 2.44 or 2.31 fold increase in the risk of cortical cerebral infarction. Therefore, it was suggested that apoE ε 4 allele is a genetic factor of susceptibility to cerebral infarction, which supported the hypothesis of the association between apoE polymorphism and atherosclerotic cardio cerebrovascular disorders.展开更多
Background Apolipoprotein （apo） A-V is a novel member of the apolipoprotein cluster involved in triacylglycerol （TG） homeostasis. It has reported that APOA5 gene polymorphisms is correlated with arteriosclerotic d...Background Apolipoprotein （apo） A-V is a novel member of the apolipoprotein cluster involved in triacylglycerol （TG） homeostasis. It has reported that APOA5 gene polymorphisms is correlated with arteriosclerotic diseases. However, This association is unknown on Chinese patients with atherosclerotic cerebral infarction. The present study aimed to elucidate the relationship of APOA5 -1131T 〉 C and arteriosclerotic cerebral infarction （ACI） as well as the levels of serum lipids. Methods Polymerase chain reaction-restriction fragments length polymorphisms （PCR-RFLP） analysis, enzymatic and immunoturbidimetry methods were used to measure- 1131T 〉 C genotype, allele frequency as well as plasma lipid level of 90 ACI patients and 221 healthy subjects of Han Chinese. Results In ACI group, the level of TG in allele C carriers was higher than that of non-C carriers （P 〈 0.05）. The frequency of allele C in ACI group was higher than in healthy group （~2 = 5.568, P = 0.018）. Except sex, age and BMI, the levels of total cholesterol （TC）, triglycerides （TG）, high density lipoprotein choles- terol （HDL-C）, low-density lipoprotein cholesterol （LDL-C）, APOA1 and APOB in ACI group distinctively were higher than those in healthy group. Conclusion The APOA5-1131 allele C is associated with the high level of TG in ACI patients, which is probably linked with ACI danger of Chinese Han.展开更多
Objective: To study the associations of stromelysin-1 (MMP3) gene 5A/6A polymorphism with plasma high-sensitivity C-reactive protein (hs-CRP) level in coronary artery disease (CAD) and myocardial infarction (MI). Meth...Objective: To study the associations of stromelysin-1 (MMP3) gene 5A/6A polymorphism with plasma high-sensitivity C-reactive protein (hs-CRP) level in coronary artery disease (CAD) and myocardial infarction (MI). Methods: The MMP3 5A/6A genotypes and plasma hs-CRP levels were determined in 405 non-CAD subjects and 395 angiography-documented CAD patients, 157 with MI and 238 with non-MI. Results: The percentage of the 5A/5A genotype was significantly (p < 0.001) greater in CAD than non-CAD subjects and in MI than non-MI patients. Plasma hs-CRP level of the 5A/5A genotype was significantly (p < 0.05) higher than that of the 6A/6A genotype in CAD and MI but not in non-MI patients. On logistic regression analysis, the odds ratio of the 5A/5A genotype for CAD was 2.11 (95% CI, 1.15 - 3.88, p < 0.05) and for MI was 3.05 (95% CI, 1.54 - 6.04, p < 0.005). Conclusions: This study showed a correlation of the 5A/5A genotype of MMP3 promoter with higher plasma hs-CRP level in CAD patients with MI.展开更多
Objective:To study the correlation between peripheral blood connexin 40 (Cx40) gene polymorphism and atherosclerotic plaque property development in patients with cerebral infarction.Methods: Patients who were treated ...Objective:To study the correlation between peripheral blood connexin 40 (Cx40) gene polymorphism and atherosclerotic plaque property development in patients with cerebral infarction.Methods: Patients who were treated in the Second Affiliated Hospital of Xi'an Medical University due to acute cerebral infarction between March 2015 and March 2018 were selected as cerebral infarction group, and healthy subjects who received physical examination during the same period were selected as control group. Peripheral blood was collected to detect the polymorphism of Cx40 gene rs35594137 locus, and serum was collected to determine the contents of cytokines, proteases and related molecules.Results: The constituent ratio of Cx40 gene AA+AG genotype in peripheral blood of cerebral infarction group was higher than that of control group whereas the constituent ratio of GG genotype was lower than that of control group;serum IL-17, HMGB1, VCAM1, MCP-1, P-selectin, YKL-40, MMP9, TIMP1 and Caspase-3 contents as well as MMP9/TIMP1 ratio of cerebral infarction group were significantly higher than those of control group whereas ADAMTS13 and Vaspin contents were significantly lower than those of control group;serum IL-17, HMGB1, VCAM1, MCP-1, P-selectin, YKL-40, MMP9, TIMP1 and Caspase-3 contents as well as MMP9/TIMP1 ratio of cerebral infarction group of patients with CX40 gene AA+AG genotype were significantly higher than those of patients with GG genotype whereas ADAMTS13 and Vaspin contents were significantly lower than those of patients with GG genotype.Conclusion: The mutation from Cx40 gene rs35594137 allele G to A in peripheral blood of patients with cerebral infarction can promote the development of atherosclerotic plaque properties.展开更多
Objective:To investigate the effect of paraoxonase 1 gene polymorphism on carotid plaque stability with cerebral infarction in Hainan population.Methods:277 patients of caroticl plaque With cerebral infarction who und...Objective:To investigate the effect of paraoxonase 1 gene polymorphism on carotid plaque stability with cerebral infarction in Hainan population.Methods:277 patients of caroticl plaque With cerebral infarction who underwent physical examination in a hospital in Hainan from 2015 to another awarding 2018 were selected as the experimental group and the 363 people who no cerebral infarction as the Analytical methods:control group.The clinical data analyzed.DNA was collected from peripheral blood of two groups of patients and genotyped by flight mass analytical methods.''AG and GG could be detected by rs3917538.The distribution frequencies of The three genotypes in The control group accorded with Hardy-Weinberg equilibrium.Results:The distribution frequencies of AA,AG and GG in the control group were 97(26.7%),175(48.2%)and 91(25.1%)respectively.In the experimental group,the distribution frequencies were 76(27.4%),136(49.1%)and 65(23.5%).There were no statistical differences among the three detection methods of co-dominant model,Dominant model and recessive model.There was no difference in the frequency of allele A and G between groups.Conclusion:Polymorphism of paraoxonase 1 gene rs3917538 has No significant effect on carotid plaque formation and cerebral infarction in Hainan population.The Supplementary sample size to add more SNP research sites for further study,It is expected to further Revral the relationship between PON1and carotial piaque complicatecl with cerebral infarction in Hainan.展开更多
文摘Acute myocardial infarction(AMI)remains a leading global cause of morbidity and mortality,with high risk of recurrent adverse cardiovascular events.Conventional diagnostic markers often lack the sensitivity needed for early detection and prognostic stratification.Recent advances highlight the role of microRNAs(miRNAs)and their genetic polymorphisms in regulating inflammation,fibrosis,and endothelial function in atherosclerotic disease.This review summarizes evidence on circulating miRNA expression and miRNA-related single nucleotide polymorphisms as biomarkers in AMI.Literature from PubMed,Scopus,and Web of Science was evaluated,focusing on pathways involving NF-κB,interleukin-1 receptor/toll-like receptors,and JAK/STAT signaling.Circulating miRNAs such as miR-150,miR-208,miR-26a,and miR-483-5p demonstrate strong diagnostic accuracy,while polymorphisms,particularly rs2910164 in miR-146a,are consistently associated with AMI susceptibility and adverse outcomes.These findings suggest that miRNAs and their variants may serve as non-invasive tools for diagnosis and risk prediction,supporting future integration into precision cardiovascular medicine.
基金supported by the National Natural Science Foundation of China, No. 81060097
文摘We sought to investigate the correlation between the -455G/A and -148C/T polymorphisms of the β-fibrinogen gene and plasma fibrinogen levels in patients with cerebral infarction and in healthy subjects among the Xinjiang Uygur and Han Chinese populations, by using polymerase chain reaction-restriction enzyme digestion analysis. Results showed that there were no statistically significant differences in the distributions of the -455G/A genotype and allele frequency between the Uygurs and the Han. Plasma fibrinogen levels in cerebral infarction patients among the Uygurs and the Han were higher than those among healthy subjects. In particular, the frequencies of the -455G/A AA and -148C/T TT genotypes were significantly higher than in healthy subjects. Individuals carrying the A or T allele had a higher incidence of cerebral infarction compared with those carrying the G or C allele. Our experimental findings indicate that the -148C/T and -455G/A polymorphisms are associated with cerebral infarction in Xinjiang Uygur and Han Chinese subjects. The susceptibility- conferring alleles are -148T and -455A, and the susceptibility-conferring genotype is -455G/A ＋ AA.
基金supported by a grant from the National Natural Science Foundation of China(No.81172750)
文摘This study investigated the relationship between IL-33/ST2 signal pathway gene polymorphisms and myocardial infarction（MI） in Han Chinese. A case-control association analysis was performed on a total of 490 MI patients（MI group） and 929 normal subjects（NC group）. Sequenom Mass Array and Taqman genotyping technique were used to analyze the tag single nucleotide polymorphisms（SNPs） in the genes encoding IL-33, ST2, and IL-1Ra P（rs11792633, rs1041973 and rs4624606）. The results showed that the frequencies of rs4624606 genotypes AA, TT, AT were 0.031, 0.647, 0.322 in MI group and 0.026, 0.712, 0.263 in NC group, and the allele frequencies of A and T were 0.192, 0.808 in MI group and 0.157, 0.843 in NC group. There were significant differences in rs4624606 genotypes and allele frequencies between MI group and NC group（P〈0.05）. For rs11792633, the allele frequencies of C and T were 0.45, 0.55 in MI group and 0.454, 0.546 in NC group with no significant differences found between the two groups. Compared with genotype CC＋TC, rs11792633 genotype TT had an increased risk of hypertension（P〈0.05）. However, there were no significant differences in the frequencies of rs11792633 genotypes between the two groups. No significant differences were noted in the frequencies of rs1041973 genotype and allele between the two groups. Logistic regression analysis showed that rs4624606 genotypes AT and AA＋AT were both significantly associated with MI（AT： OR=1.325, P=0.029, 95% CI=1.03–1.705; AA＋AT： OR=1.316, P=0.028, 95% CI=1.03–1.681） after factors such as age, gender, smoking, drinking, body mass index（BMI）, triglyceride（TG） and cholesterol were adjusted. Those carrying rs4624606 genotype AT or AA＋AT had an increased risk of MI. No associations were found between the polymorphisms of the other two loci with MI. It was concluded that, in the IL33/ST2 signal pathway, the A allele of rs4624606 polymorphism of IL-1Ra P gene is a potential independent risk factor for MI, and the genotypes AA＋AT and AT are associated with the incidence of MI.
文摘This study investigated the association of apolipoprotein A5 （apoA5） gene polymorphism at position -1131T〉C with cerebral infarction in patients with type 2 diabetes. A total of 256 type 2 diabetic patients without cerebral infarction （T2DM）, 220 type 2 diabetic patients with cerebral infarction （T2DMCI） and 340 healthy subjects were recruited from the same region （Hubei province, China）. The genotype of apoA5 -1131T〉C was analyzed by polymerase chain reaction, followed by restriction fragment length polymorphism （PCR-RFLP）. Total cholesterol, HDL cholesterol, LDL-cholesterol and triglycerides were quantitatively detected by using standard enzymatic tech- niques. The results showed that the prevalence of the apoA5 -1131C allele was significantly higher in T2DMCI group than that in control group （42.7% versus 31.2%, P〈0.01）. The carriers of rare C allele had higher TG levels as compared with carriers of common allele in the three groups （P〈0.01）. Logistic regression models, which were adjusted for age, gender, blood pressure, BMI, FBS, smoking, LDL-C and HDL-C, revealed that patients carrying the apoA5 -1131C allele and CC homozygotes were at high risk for T2DMCI. It was concluded that the apoA5 -1131C allele variant is an independent genetic risk factor for T2DMCI.
基金This work was supported by Guangdong Science Technology Project Foundation (No. 2005B3370321) Zhuhai Municipal ScienceTechnology Foundation (No. PB20051015).
文摘Objective To evaluate the correlation between the β-fibrinogen gene-455G/A polymorphism and cerebral infarction in Chinese population by means of meta-analysis. Methods Genetic association studies on evaluating the β-fibrinogen gene -455G/A polymorphism and cerebral infarction involving Chinese population published before December 2005 were collected from database of PubMed, EMBASE, and CNKI. All the data in literature were abstracted based on the defined selection criteria by two independent investigators. Publication bias was tested by funnel plot and the odd ratios of all studies were combined dependent on the result of heterogeneity test among the individual studies. The software Review Manager （Version 4.2） was used for meta-analysis. Results Eleven studies including 1405 patients and 1600 controls met the selection criteria. There was no publication bias in 11 reviewed studies. Heterogeneity test of reviewed studies showed statistically significant differences （χ^2=24.58, P=0.006） among the ORs of individual studies. The combined OR of 11 studies of susceptibility to cerebral infarction in –455A allele carriers compared with the -455G/G wild homozygotes was 1.33 （95%CI 1.04-1.71, P=0.02）. In the patients with cerebral infarction in 6 studies, the summarized average plasma fibrinogen level of allele A carrier was 0.29 g/L （95%CI 0.14-0.44, P=0.0002） higher than that of -455G/G homozygous ones. Conclusions β-fibrinogen gene -455G/A polymorphism might contribute to susceptibility of cerebral infarction in Chinese population; allele A increases the individual susceptibility to the disease.
基金the Xuzhou Social Development Foundation of Jiangsu Province, No. 2006046
文摘BACKGROUND： Many international studies have shown that plasminogen activator inhibitor-1 （PAl-l） 4G/5G promoter polymorphism does not increase the risk for cerebral infarction. OBJECTIVE： Using PCR methodology and agarose electrophoresis to detect PAI-1 4G/5G promoter polymorphism in patients with recurrent cerebral infarction in the North Jiangsu Province of China, and to compare results with healthy subjects and patients with first-occurrence cerebral infarction in the same region. DESIGN, TIME AND SETTING： Non-randomized, concurrent, control trial. A total of 122 cerebral infarction patients were admitted to Xuzhou Medical College Hospital＇s Department of Neurology and Xuzhou Central Hospital＇s Department of Neurology between July 2003 and August 2006. PARTICIPANTS： The patients consisted of 63 males and 59 females, aged （62 ± 10） years. They were divided into first-occurrence （n = 58） and recurrence （n = 64） groups. In addition, 50 healthy subjects that underwent physical examination in the outpatient department, including 26 males and 24 females, aged （60 ±12） years, were selected as controls. METHODS AND MAIN OUTCOME MEASURES： PAl-1 4G/5G promoter polymorphism was detected and analyzed using PCR methodology and agarose electrophoresis. RESULTS： Significant differences were determined in terms of genotypic frequency and allele frequency of PAI-1 4G/5G promoter polymorphism, in patients with first-occurrence or recurrent cerebral infarction, when compared with healthy subjects （P 〈 0.05）. There was, however, no significant difference between the first-occurrence and recurrence groups （P 〉 0.05）. CONCLUSION： PAl- 1 4G/5G promoter polymorphism is genetic risk factor for cerebral infarction in China. However, it may be associated with recurrence of cerebral infarction in patients from the North Jiangsu Province of China.
基金supported by the National Natural Science Foundation of ChinaNo.81171867+1 种基金a grant from the Key Research Program of Fujian Department of Science and Technology of ChinaNo.2011Y0027
文摘Evidence suggests that interleukin-10（IL-10） deficiency exacerbates inflammation and worsens the outcome of brain ischemia. In view of the critical role of the single nucleotide polymorphic sites-1082（A/G） and-819（C/T） in the promoter region of the IL-10 gene, we hypothesized that they are associated with cerebral infarction morbidity in the Chinese Han population. We genotyped these allelic gene polymorphisms by amplification refractory mutation system-polymerase chain reaction methods in 181 patients with cerebral infarction（cerebral infarction group） and 115 healthy subjects（control group）. We identified significant differences in genotype distribution and allele frequency of the IL-10-1082 A/G allele between cerebral infarction and control groups（χ2 = 6.643, P = 0.010）. The IL-10-1082 A allele frequency was significantly higher in the cerebral infarction group（92.3%） than in the control group（86.1%）（P = 0.015）. Moreover, cerebral infarction risk of the AA genotype was 2-fold higher than with the AG genotype（OR = 2.031, 95%CI： 1.134-3.637）. In addition, AA genotype together with hypertension was the independent risk factor of cerebral infarction（OR = 2.073, 95%CI： 1.278-3.364）. No statistical difference in genotype distribution or allele frequency of IL-10-819 C/T was found between cerebral infarction and control groups（P 〉 0.05）. These findings suggest that the IL-10-1082 A/G gene polymorphism is involved in cerebral infarction, and increased A allele frequency is closely associated with occurrence of cerebral infarction.
文摘Objective: To explore the frequency and significance of ApoE gene polymorphisms in Chinese patients with atherosclerotic cerebral infarction (ACI). Methods: Polymerase chain reaction and gene sequencing, single nucleotide polymorphisms of ApoE gene were used to analyze 33 cases of patients with ACI and 35 controls. Results: The frequencies of ApoE gene single nucleotide polymorphisms 465C/G, 462C/G and 451delC in the ACI group were significantly higher than those in the control group (P<0.05). The prevalence of polymorphism 486G/T in the control group was significantly higher than that in the ACI group ( P = 0.011) . Conclusions: 465C/G,462C/G and 451delC polymorphisms might be associated with ACI.486GT allele might have protective effect on the pathogenesis of ACI.
文摘In order to investigate the association of G＋1688A （Ser563Asn） polymorphism of platelet endothelial cell adhesion molecule-1 （PECAM-1） gene with myocardial infarction （MI） in the Chinese Han population, the G＋1688A polymorphism in PECAM-1 gene was detected by polymerase chain reaction-restriction fragment-length polymorphism （PCR-RFLP） method among 502 subjects, including 218 patients with MI and 284 controls. The results showed that there was significant difference in AA frequencies of genotype G＋1688A polymorphism between case and control groups （39% vs 24%, P〈0.001）. A similar trend was observed on the allele frequencies （A/G： 62% vs 49%, P〈0.001）. Among the subjects with high serum total cholesterol level or high systolic blood pressure level, the variant AA genotype was associated with high risk of MI （adjusted OR, 2.13; 95% CI, 1.08 -4.41 and adjusted OR, 2.53; 95%CI, 1.63-3.63）. The single nucleotide polymorphism （SNP） at position ＋1688 in the exon 8 of PECAM-1 gene was associated with MI and the allele A might be a risk factor for MI in the Chinese Han population.
基金This study was supported by"333 Talent Project " funds of Jiangsu Province in 1999.
文摘Objective. To investigate the relationship of plasma homocysteine (Hcy) level to stroke and genetic factor to elevated plasma Hcy level.Methods. The plasma Hcy level was measured by capillary electrophoresis- ultraviolet detection and the gene polymorphism of N5, N10 - methylenetetrahydrofolate reductase (MTHFR) was studied with PCR - RFLP assay in 43 patients with cortical cerebral infarction and 42 healthy controls.Results. The plasma Hcy level of the patients ( 19. 3 + 6. 0 μ mol/L) was markedly higher than that of the controls (13.7 + 5.4 μ mol/L) ( t = 4. 16, P ＜ 0. 001). There are 3 genotypes, C/C, C/T and T/T, about base - variation of MTHFR gene at locus 677. The plasma Hcy level of the subjects with T/T genotype was higher than that of subjects with other genotypes. However, the frequencies of each genotype and allele were not significantly different between the patients and the controls.Conclusions. The elevated plasma Hcy level is a risk factor for atherothrombotic cerebral infarction, and is related to the C→T mutation at locus 677 of MTHFR gene.
文摘Objectives To investigate the relationship of the GPIa C807T dimorphism to the risk of myocardial infarction （MI） in Chinese. Methods We did a case-control study including 100 patients and 110 controls with same race. An allele-specific polymerase chain reaction （PCR） was used for genotyping of C807T polymorphism. Results An apparent association was found between the T807 allele and MI among individuals younger than the mean age of 60 years （odds ratio, 2. 49 ; 95 % confidence interval, 1.08 - 6.22 ）. The T807 allele remained an independent risk factor for MI when age, sex, smoking, hypertension, diabetes, bodymass index, LDL-cholesterol and HDL-cholesterol were adjusted by logistic regression. Conclusions GPIa T807 appears to be an independent risk factor for MI.
文摘Background One of the characteristics of atherosclerosis is a change in the content of extracellular matrix in the arterial wall. Gelatinase B, a member of the family of matrix metalloproteinase, can regulate extracellular matrix metabolismand play a role in the pathogenesis of atherosclerosis, coronary heart disease (CHD) and myocardial infarction (MI). Gelatinase B is polymorphic due to a C to T change at the position -1562 bp in the promoter region.Its relationship with gene product concentration in serum and its role in mediating the risk of CHD and MI in Germans is still unknown. Methods We enrolled 102 controls and 322 patients with angiographically documented CHD,including a sub-group of 173 patients with acute or chronic MI and 80 patients with acute coronary syndrome (ACS).All patients and controls were Germans and genotyped by polymerase chain reaction and digestion with SphI. Results We found that several classical risk factors for CHD and MI, including hypercholesterolemia and cigarette smoking,were significantly increased in CHD and MI patients compared with controls. Serum levels of gelatinase B and tissue inhibitor of metalloproteinase-1 were increased in the peripheral blood of patients with acute coronary syndrome. No significant differences in genotype or allelic frequencies between CHD, MI and control subjects of either men or women were found. Our search for a possible association of the polymorphisms with CHD and MI by logistic regression analysis was also negative. The serum concentrations of gelatinase B showed no differences between genotypes. Conclusions Our data showed that gelatinase B might provide an index of plaque activity in ACS, but gelatinase B protein was not affected by genotypes. Also, the T variant of gelatinase B was not associated with CHD or MI in Germans. (J Geriatr Cardiol 2004;1(2):114-118.)
文摘BACKGROUND： Plasma fibrinogen （Fg） β-148C/T gene polymorphism is a risk factor for ischemic angiopathy. OBJECTIVE： To explore the frequency distribution of Fg β- 148C/T gene polymorphism and its relationship with plasma Fg levels in patients with cerebral infarction. DESIGN, TIME AND SETTING： Case control experiment of gene polymorphism was performed at the Central Laboratory of Qingdao University Medical College from January 2003 to June 2004. PARTICIPANTS： A total of 88 patients with cerebral infarction were recruited from the Affiliated Hospital of Qingdao University Medical College, including 52 males and 36 females, averaging （61±14） years of age In addition, 80 healthy cases served as the control group, comprising 48 males and 32 females, with an average age of （58 ± 12） years. METHODS： Blood DNA was extracted, and electrophoresis results were observed using an ultraviolet single photon image system. The frequency distribution of Fg β -148C/T was analyzed by polymerase chain reaction-restriction fragment length polymorphism method. Plasma Fg levels were measured by cerebral infarction time. MAIN OUTCOME MEASURES： Plasma Fg β -148C/T gene polymorphism and plasma Fg levels in patients with cerebral infarction. RESULTS： The frequency of the T allele, and plasma Fg levels in CC, CT, and CC＋CT genotype subgroup, were significantly greater in the cerebral infraction group, compared with the control group （P 〈 0.05）. However, there was no significant difference between the TT genotype subgroup and the control group （P 〉 0.05）. The plasma Fg levels in the CT, TT, and CT＋TT genotype groups were significantly greater than the CC genotype group （P 〈 0.05）. However, in the control group, plasma Fg levels in the TT genotype subgroup were significantly greater than the remaining genotype subgroups （P 〈 0.05）. CONCLUSION： Plasma Fg β -148C/T gene polymorphism is an important hereditary factor for differences in plasma Fg levels. The T allele plays a crucial role in influencing plasma Fg levels in cerebral infarction. Fg β - 148C/T may be a susceptibility factor for cerebral infarction.
文摘BACKGROUND： Studies have shown that adenosine triphosphate-binding cassette transporter 1 （ABCA1） gene influences atherosclerosis. Studies have also demonstrated that cerebral infarction does not occur often in pre-menopausal women. It has been, therefore, assumed that sex plays a role in R219K polymorphism of ABCA1 gene and cerebral infarction. OBJECTIVE： To explore the relationship between lipid metabolism-correlated R219K polymorphism of ABCA1 gene, risk factors of cerebral infarction and lipid level, and to determine whether there were significant differences in gender between R219K polymorphism of ABCA1 gene and cerebral infarction. DESIGN, TIME AND SETTING： A multicentral and non-randomized, controlled study based on gene polymorphism was performed at the Chinese National Human Genome Center, and lipid concentrations were measured at Beijing Xuanwu Hospital. Patients with cerebral infarction and healthy subjects were enrolled from eight hospitals of six provinces of China between October 2002 and December 2004. PARTICIPANTS： There were 177 patients in the cerebral infarction group, including 119 males and 58 females, with a mean age of （60 -＋ 13） years, and 234 healthy subjects in the normal control group, including 79 males and 155 females, with a mean age of （58 ± 12） years. METHODS： R219K polymorphism of the ABCA1 gene was detected using polymerase chain reaction-restriction fragment length polymorphism, and blood lipid concentrations were simultaneously measured. MAIN OUTCOME MEASURES： Genotype and allele frequency of R219K polymorphic site, and blood lipid concentrations. RESULTS： RR genotype and R allele frequency of males in the cerebral infarction were significantly greater than males in the normal control group [RR genotype： x2 = 5.305, OR （95% CO, 2.326 （1.120 4.828）, P〈 0.05; R allele： x2= 4.219, OR （95% CO, 1.528 （1.019 2.292）, P〈 0.05]. In addition, RR genotype and R allele frequency of males were significantly greater than females in the cerebral infarction group [RR genotype： x2= 5.172, OR （95% C/）, 2.604 （1.120-6.057）, P〈 0.05; R allele： x2= 4.818, OR （95% CO, 1.652 （1.053 2.589）, P〈 0.05]. There were no significant differences between genotype and lipid concentrations between the two groups （P〉 0.05）. CONCLUSION： The RR genotype of ABCA1 R219K might be associated with onset of cerebral infarction in males, but blood lipid concentrations do not relate to R219K polymorphism.
基金supported by grants from the National Basic Scientific Research Program of China (973 Program, No. 2007CB935803)the National Natural Sciences Foundation of China (No. 30825018)
文摘This study examined the association of a common polymorphic allele（25G） of the low-density lipoprotein receptor-related protein1（LRP1） gene with myocardial infarction（MI）.The genotypes of LRP1 25CG（rs35282763） were determined in 347 MI patients and 347 age-and sex-frequency-matched controls from an unrelated Chinese Han population.Factor Ⅷ（FⅧ） levels were measured in the MI patients and controls by chromogenic assay and enzyme-linked immunosor-bent assay（ELISA）.The results showed that LRP1 25CG（rs35282763） genotype distribution did not differ significantly between patients（n=206 for 25CC,n=122 for 25CG） and controls（n=191 for 25CC,n=126 for 25CG;P0.05）.The 25G allele was not associated with a reduced risk of MI（P0.05）.Further stratifications for age,sex,and other cardiovascular risk factors did not affect the negative findings.It was concluded that the presence of the G allele at the 25CG（rs35282763） polymorphism of the LRP1 is not associated with a reduced risk of MI,and genotyping for LRP1 25CG（rs35282763） polymor-phism is not useful in assessing the individual risk of MI.
文摘The polymorphism of apoE, an important determinant in the lipid metabolism, may be related to the atherosclerotic events. In this study, the apoE genotypes, by means of PCR AFLP assay in 42 patients with cortical cerebral infarction and 85 healthy controls were detected. The results showed that the apoE ε 3/3 genotype was more prevalent in the controls (55.29%), and ε 3/4 genotype was more common in the patients (57.14%). The frequency of ε 4 allele was more predominate in the patients than that in the controls. The ε 3/4 genotype or ε 4 allele was associated with 2.44 or 2.31 fold increase in the risk of cortical cerebral infarction. Therefore, it was suggested that apoE ε 4 allele is a genetic factor of susceptibility to cerebral infarction, which supported the hypothesis of the association between apoE polymorphism and atherosclerotic cardio cerebrovascular disorders.
基金supported by the grants from Hubei Provincial Department of Education(No.D20122406)
文摘Background Apolipoprotein （apo） A-V is a novel member of the apolipoprotein cluster involved in triacylglycerol （TG） homeostasis. It has reported that APOA5 gene polymorphisms is correlated with arteriosclerotic diseases. However, This association is unknown on Chinese patients with atherosclerotic cerebral infarction. The present study aimed to elucidate the relationship of APOA5 -1131T 〉 C and arteriosclerotic cerebral infarction （ACI） as well as the levels of serum lipids. Methods Polymerase chain reaction-restriction fragments length polymorphisms （PCR-RFLP） analysis, enzymatic and immunoturbidimetry methods were used to measure- 1131T 〉 C genotype, allele frequency as well as plasma lipid level of 90 ACI patients and 221 healthy subjects of Han Chinese. Results In ACI group, the level of TG in allele C carriers was higher than that of non-C carriers （P 〈 0.05）. The frequency of allele C in ACI group was higher than in healthy group （~2 = 5.568, P = 0.018）. Except sex, age and BMI, the levels of total cholesterol （TC）, triglycerides （TG）, high density lipoprotein choles- terol （HDL-C）, low-density lipoprotein cholesterol （LDL-C）, APOA1 and APOB in ACI group distinctively were higher than those in healthy group. Conclusion The APOA5-1131 allele C is associated with the high level of TG in ACI patients, which is probably linked with ACI danger of Chinese Han.
文摘Objective: To study the associations of stromelysin-1 (MMP3) gene 5A/6A polymorphism with plasma high-sensitivity C-reactive protein (hs-CRP) level in coronary artery disease (CAD) and myocardial infarction (MI). Methods: The MMP3 5A/6A genotypes and plasma hs-CRP levels were determined in 405 non-CAD subjects and 395 angiography-documented CAD patients, 157 with MI and 238 with non-MI. Results: The percentage of the 5A/5A genotype was significantly (p < 0.001) greater in CAD than non-CAD subjects and in MI than non-MI patients. Plasma hs-CRP level of the 5A/5A genotype was significantly (p < 0.05) higher than that of the 6A/6A genotype in CAD and MI but not in non-MI patients. On logistic regression analysis, the odds ratio of the 5A/5A genotype for CAD was 2.11 (95% CI, 1.15 - 3.88, p < 0.05) and for MI was 3.05 (95% CI, 1.54 - 6.04, p < 0.005). Conclusions: This study showed a correlation of the 5A/5A genotype of MMP3 promoter with higher plasma hs-CRP level in CAD patients with MI.
基金Shaanxi Provincial Natural Science Foundation No:2012JM4005.
文摘Objective:To study the correlation between peripheral blood connexin 40 (Cx40) gene polymorphism and atherosclerotic plaque property development in patients with cerebral infarction.Methods: Patients who were treated in the Second Affiliated Hospital of Xi'an Medical University due to acute cerebral infarction between March 2015 and March 2018 were selected as cerebral infarction group, and healthy subjects who received physical examination during the same period were selected as control group. Peripheral blood was collected to detect the polymorphism of Cx40 gene rs35594137 locus, and serum was collected to determine the contents of cytokines, proteases and related molecules.Results: The constituent ratio of Cx40 gene AA+AG genotype in peripheral blood of cerebral infarction group was higher than that of control group whereas the constituent ratio of GG genotype was lower than that of control group;serum IL-17, HMGB1, VCAM1, MCP-1, P-selectin, YKL-40, MMP9, TIMP1 and Caspase-3 contents as well as MMP9/TIMP1 ratio of cerebral infarction group were significantly higher than those of control group whereas ADAMTS13 and Vaspin contents were significantly lower than those of control group;serum IL-17, HMGB1, VCAM1, MCP-1, P-selectin, YKL-40, MMP9, TIMP1 and Caspase-3 contents as well as MMP9/TIMP1 ratio of cerebral infarction group of patients with CX40 gene AA+AG genotype were significantly higher than those of patients with GG genotype whereas ADAMTS13 and Vaspin contents were significantly lower than those of patients with GG genotype.Conclusion: The mutation from Cx40 gene rs35594137 allele G to A in peripheral blood of patients with cerebral infarction can promote the development of atherosclerotic plaque properties.
基金Hainan Natural Science Foundation Project(818MS180).
文摘Objective:To investigate the effect of paraoxonase 1 gene polymorphism on carotid plaque stability with cerebral infarction in Hainan population.Methods:277 patients of caroticl plaque With cerebral infarction who underwent physical examination in a hospital in Hainan from 2015 to another awarding 2018 were selected as the experimental group and the 363 people who no cerebral infarction as the Analytical methods:control group.The clinical data analyzed.DNA was collected from peripheral blood of two groups of patients and genotyped by flight mass analytical methods.''AG and GG could be detected by rs3917538.The distribution frequencies of The three genotypes in The control group accorded with Hardy-Weinberg equilibrium.Results:The distribution frequencies of AA,AG and GG in the control group were 97(26.7%),175(48.2%)and 91(25.1%)respectively.In the experimental group,the distribution frequencies were 76(27.4%),136(49.1%)and 65(23.5%).There were no statistical differences among the three detection methods of co-dominant model,Dominant model and recessive model.There was no difference in the frequency of allele A and G between groups.Conclusion:Polymorphism of paraoxonase 1 gene rs3917538 has No significant effect on carotid plaque formation and cerebral infarction in Hainan population.The Supplementary sample size to add more SNP research sites for further study,It is expected to further Revral the relationship between PON1and carotial piaque complicatecl with cerebral infarction in Hainan.
