Yi-Tong Ma

Xinjiang Medical University, Ouroumtchi, Xinjiang Uygur Zizhiqu, China

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Publications (109)204.77 Total impact

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    ABSTRACT: Hypercholesterolemia is one of the most common risk factors for Coronary Artery Disease (CAD), which is the leading cause of death worldwide. As Numb is an important regulating factor regarding intestinal cholesterol absorption and plasma cholesterol level, the aim of the present study is to investigate the relationship between human Numb gene polymorphism and cholesterol level in Chinese subjects. All participants came from the First Affiliated Hospital of Xinjiang Medical University (Male: 1052 and Female: 596), and four tagging SNPs (rs2108552, rs12435797, rs1019075 and rs17781919) of Numb gene were genotyped by using TaqMan(®) assays and analyzed in an ABI 7900HT Fast Real-Time PCR System. Further, general liner model was applied for assessing the relationship between cholesterol level and genotypes. By analyzing a dominant model, recessive model and an additive model, we have found that SNP rs2108552 was associated with total cholesterol (TC) and low density lipoprotein-cholesterol level (LDL-C) (P = 0.000 and P = 0.007; P =0.042 and P =0.009; P = 0.006 and P = 0.030). C allele of SNP rs17781919 had significantly lower plasma TC level (3.46 ± 0.74 mmol/L vs 4.27 ± 1.1 mmol/L) and LDL-C level (0.98 ± 0.55 mmol/L vs 2.64 ± 0.93 mmol/L) when compared with T allele. Additionally, SNP rs12435797 was associated with TC level and SNP rs1019075 was associated with LDL-C level by analyses of a dominant model, recessive model and an additive model (P = 0.000, P = 0.005 and P = 0.004; P = 0.016, P = 0.008 and P = 0.033). Further, the association of rs2108552, rs12435797, rs1019075 and rs17781919 with aforementioned different kinds of cholesterol levels remained statistically significant after multivariate adjustment of ethnicity, gender, age, smoking and obesity. Our results indicated that both rs2108552 and rs17781919 in the Numb gene were associated with total cholesterol level and density lipoprotein-cholesterol level in Chinese subjects.
    Diagnostic Pathology 12/2015; 10(1):141. DOI:10.1186/s13000-015-0373-2 · 2.41 Impact Factor
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    ABSTRACT: Impaired myocardial reperfusion, defined angiographically by myocardial blush grade (MBG) 0 or 1, is associated with adverse clinical outcomes in patients with ST-segment elevation myocardial infarction (STEMI). The aim of this study was to investigate the impact of admission mean platelet volume (MPV) on the myocardial reperfusion and 30-day all-cause mortality in patients with STEMI with successful epicardial reperfusion after primary percutaneous coronary intervention (PCI). A total of 453 patients with STEMI who underwent primary PCI within 12 h of symptoms onset and achieved thrombolysis in myocardial infarction (TIMI) 3 flow at infarct-related artery after PCI were enrolled and divided into two groups based on postinterventional MBG: those with MBG 2/3 and those with MBG 0/1. Admission MPV was measured before coronary angiography. The primary endpoint was all-cause mortality at 30 days. MPV was significantly higher in patients with MBG 0/1 than in patients with MBG 2/3 (10.38 ± 0.98 vs. 9.59 ± 0.73, P < 0.001). The cumulative 30-day all-cause mortality rate was significantly higher in the groups with high MPV and MBG 0/1 (6.8 vs. 1.5%, P = 0.005, 7.6 vs. 1.9%, P = 0.006, respectively). Multivariate logistic regression analysis demonstrated MPV was independently associated with postinterventional impaired myocardial reperfusion (odds ratio 2.684, 95% confidence interval 2.010-3.585, P < 0.001) and 30-day all-cause mortality (hazard ratio 1.763, 95% confidence interval 1.009-3.079, P = 0.046). Increased MPV on admission is an independent predictor of impaired myocardial reperfusion and short-term mortality in patients with STEMI with successful epicardial reperfusion after primary PCI. Admission MPV may be additive to conventional risk factors in patients with STEMI undergoing PCI.
    Blood coagulation & fibrinolysis: an international journal in haemostasis and thrombosis 08/2015; DOI:10.1097/MBC.0000000000000388 · 1.38 Impact Factor
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    ABSTRACT: Lately, there is accumulating evidence that the Wnt/Frizzled pathway is reactivated after myocardial infarction, the inhibition of the pathway is beneficial since it reduce of myocardial apoptosis and prevents heart failure. FrzA/Sfrp-1, a secreted frizzled-related protein and antagonist for the wnt/frizzled pathway. We assessed the hypothesis that FrzA protects cardiomyocytes from H2O2-Induced Oxidative damage through the inhibition of Wnt/Frizzled pathway activity. We used a recombinant AAV9 vector to deliver FrzA gene into neonatal rat ventricle myocytes and developed an oxidative stress model using H2O2. The cell vitality was measured by MTT colorimetric assay. Western blot and RT-PCR were used to evaluate the expressions of Dvl-1, β-catenin, c-Myc, Bax and Bcl-2. Flow cytometry analysis of cardiomyocytes apoptosis. We confirmed that Wnt/frizzled pathway is involved in H2O2-induced apoptosis in cardiomyocytes. Compared with controls, H2O2 induced the upregulation of Dvl-1, β-catenin, and c-Myc. FrzA suppressed the expression of Dvl-1, β-catenin, c-Myc and the activity of the Wnt/frizzled pathway. Furthermore, FrzA over-expression decreased the apoptotic rate, and the Bax/Bcl-2 ratio in cardiomyocytes treated with H2O2. FrzA, through the inhibition of Wnt/Frizzled pathway activity reduced H2O2-induced cardiomyocytes apoptosis and could be a potential therapeutic target for prevention of cardiac oxidative damage.
    Lipids in Health and Disease 08/2015; 14(1):90. DOI:10.1186/s12944-015-0088-0 · 2.31 Impact Factor
  • Erdenbat Cha · Zhen-Yan Fu · Yi-Tong Ma · Qing Zhu · Xiang Xie · Fen Liu
    Lipids in Health and Disease 07/2015; 14(1). DOI:10.1186/s12944-015-0063-9 · 2.31 Impact Factor
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    ABSTRACT: Adeno-associated virus (AAV) has become one of the most promising gene transfer tools for gene therapy. This work aimed to evaluate tropism, gene transfer efficiency and safety of AAV9 vectors produced with recombinant baculovirus (rBac)-based system. AAV9-CMV-GFP and AAV9-CBA-GFP were produced using a rBac system, 1×10(11) particles of each vectors were administered (i.v.) into mice and animal were killed at 1, 2, 3, 4, 5 and 8 weeks after administration. GFP expression in different organs was analyzed by fluorescence imaging and Western blot. Viral genomic quantities were measured using qPCR. In vitro transduction efficiency of AAV9 vectors in primary cardiomyocytes and hepatocytes was determined by flow cytometry. Toxicity of AAV9 vectors was evaluated by determining certain cardiac and liver injury biomarkers and renal function test in vivo and TUNEL analysis in vitro. Our data showed that AAV9 viral particles packaged by the rBac system were fully functional in vivo and in vitro. CMV promoter predominantly induced higher cardiac GFP transgene expression and DNA copy numbers while CBA promoter resulted in robust GFP expression and high vector DNA copy numbers in mouse liver, both in a time-dependent increased manner. Such distinct preferential effects were also observed in the heart and liver as early as 3 and 5 days after co-infection. Both AAV9-CMV and AAV9-CBA viral package did not induce heart, liver and renal damage and cell apoptosis. These results indicated that AAV9-CMV can efficiently and safely direct cardiac gene transfer, whereas AAV9-CBA is preferential for liver gene delivery. This article is protected by copyright. All rights reserved. This article is protected by copyright. All rights reserved.
    Clinical and Experimental Pharmacology and Physiology 07/2015; DOI:10.1111/1440-1681.12453 · 2.41 Impact Factor
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    ABSTRACT: Inflammation and thrombosis are involved in the progression of acute aortic dissection (AD). A novel simplified thrombo-inflammatory prognostic score (sTIPS), based on white blood cell count (WBC) and mean platelet volume (MPV) to platelet count (PC) ratio (MPV/PC ratio), was assessed for its ability to predict adverse clinical outcomes in type A acute aortic dissection (AAD). One hundred and six patients with newly diagnosed AAD were included in the study. Simplified thrombo-inflammatory prognostic scores ranged from 0 to 2. Kaplan–Meier curves and multivariable Cox regression analyses were used to investigate the associations between sTIPS and adverse outcomes. Of 106 AAD patients, 71 (67.0%) died during the study period, with a median follow-up duration of 570 days. Compared with those with low sTIPS, patients with higher sTIPS had higher rates of in-hospital complications (all P < 0.05). In multivariable Cox regression models adjusted for potential confounders, sTIPS was positively associated with the hazard of all-cause mortality. For those with sTIPS scores of 0, 1, and 2, the multivariable-adjusted hazard ratios (95% confidence intervals) for mortality were 1.0 (ref.), 2.28 (1.23–4.21) ( P = 0.008), and 5.26 (1.93–9.40) ( P < 0.001), respectively. Subgroup analysis showed sTIPS was also positively associated with the hazard of all-cause mortality in patients with either medication only or urgent surgery. Simplified thrombo-inflammatory prognostic score, a combined inflammatory-thrombotic score, was a strong independent predictor for long-term adverse outcomes in patients with AAD.
    European Heart Journal Supplements 07/2015; 17(suppl C). DOI:10.1093/eurheartj/suv032 · 5.64 Impact Factor
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    ABSTRACT: Coronary artery disease (CAD) is the most common chronic inflammatory disease worldwide. NF-κB, a central regulator of inflammation, is involved in various inflammatory diseases. The aim of this study was to investigate the association between NFKB1 and NFKBIA polymorphisms and the susceptibility to CAD and their impact on plasma levels of IL-6 in a Chinese Uygur population. We genotyped NFKB1-94ins/del ATTG (rs28362491) and NFKBIA3' UTR A/G (rs696) using TaqMan SNP genotyping assays in 960 Uygur CAD cases and Uygur 1060 CAD-negtive controls. IL-6 plasma levels were measured in 360 stable angina pectoris (SAP) cases and 360 controls using ELISA method. There was no significant difference in the distribution of the genotypes and alleles of rs696 polymorphism in CAD cases and controls. Significant difference in the frequency of genotypes (P = 0.001) and alleles (P = 0.001) of rs28362491 polymorphism was observed in CAD cases compared to controls. In multivariate logistic regression analysis, SNP rs28362491 was consistently associated with CAD risk in a recessive model after adjustment for cardiovascular risk factors (OR = 1.581, 95% CI 1.222 to 2.046, P<0.001). SAP cases had significantly higher plasma levels of IL-6 compared to controls (P<0.001). General linear model analysis showed rs28362491 was independently associated with increased IL-6 levels by analyses of a recessive model (P<0.001) after adjustment for covariates. Our study indicates that NFKB1-94 ins/del ATTG polymorphism may play a role in CAD susceptibility in Chinese Uygur population and is functionally associated with IL-6 expression, suggesting a mechanistic link between NFKB1-94 ins/del ATTG polymorphism and CAD susceptibility.
    PLoS ONE 06/2015; 10(6):e0129144. DOI:10.1371/journal.pone.0129144 · 3.23 Impact Factor
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    ABSTRACT: Valvular calcification occurs via ongoing endothelial injury associated with inflammation. IL-10 is an anti-inflammatory cytokine and 75% of the variation in IL-10 production is genetically determined. However, the relationship between genetic polymorphisms of IL-10 and valvular calcification has not been studied. The objective of this study was to investigate the association between valvular calcification and IL-10 genetic polymorphisms in the Han, Uygur and Kazak populations in China. All of the participants were selected from subjects participating in the Cardiovascular Risk Survey (CRS) study. The single nucleotide polymorphisms (SNPs) rs1800871 and rs1800872 of the IL-10 gene were genotyped using the polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method. Three independent case-control studies involving the Han population, the Uygur population and the Kazak population were used in the analysis. For the Han and Kazak populations, rs1800871 was found to be associated with valvular calcification in the recessive model, and the difference remained statistically significant following multivariate adjustment (p<0.001, p=0.031, respectively). For the Han, Uygur and Kazak populations, rs1800872 was found to be associated with valvular calcification in the dominant model, and the difference remained statistically significant following multivariate adjustment (p<0.001, p=0.009, and p=0.023,respectively). Both rs1800871 and rs1800872 of the IL-10 gene are associated with valvular calcification in the Han and Kazak populations in China. Rs1800872 is also associated with valvular calcification in the Uygur population.
    PLoS ONE 06/2015; 10(6):e0128965. DOI:10.1371/journal.pone.0128965 · 3.23 Impact Factor
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    ABSTRACT: With the development of genome-wide association studies (GWAS) concerning hypertension, a growing number of susceptibility genes related to hypertension have been revealed. Subsequently, several studies have investigated the association between CYP17A1 rs1004467 heritable variation and hypertension; however, the results have been inconsistent. In this study, a meta-analysis was performed to assess the association between the CYP17A1 rs1004467 polymorphism and hypertension risk. The PubMed, ISI Web of Science and Embase databases as well as China Wanfang, Weipu and the Chinese Journal Full-text Database were used to retrieve all publications from 2005 to 2013 related to case-control studies that reported a link between the risk factors for hypertension and the CYP17A1 polymorphism. All association studies were identified, and a meta-analysis was conducted using the RevMan 5.0 estimate for odds ratios (ORs) to determine whether the A allele predicts hypertension outcomes. Three articles including five studies (totaling 4495 patients and 3529 controls) were identified. The overall effect suggested that rs1004467 was significantly associated with hypertension (OR=1.22, 95%CI 1.08-1.38, p=0.001). The present meta-analysis confirmed the significant association between a polymorphism of the CYP17A1 gene and hypertension susceptibility. The CYP17A1 A allele should be considered a risk factor for hypertension. © The Author(s) 2015.
    Journal of Renin-Angiotensin-Aldosterone System 05/2015; DOI:10.1177/1470320315585683 · 2.27 Impact Factor
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    ABSTRACT: This study aimed to identify the best single predictor of metabolic syndrome by comparing the predictive ability of various anthropometric and atherogenic parameters among a Uighur population in Xinjiang, northwest China. A total of 4767 Uighur participants were selected from the Cardiovascular Risk Survey (CRS), which was carried out from October, 2007, to March, 2010. Anthropometric data, blood pressure, serum concentration of serum total cholesterol (TC), triglycerides (TGs), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), and fasting glucose were documented. Prevalence of metabolic syndrome and its individual components were confirmed according to International Diabetes Federation (IDF) criteria. Area under the receiver operating characteristic curve (AUC) of each variable for the presence of metabolic syndrome was compared. The sensitivity (Sen), specificity (Spe), distance in the receiver operating characteristic (ROC) curve, and cutoffs of each variable for the presence of metabolic syndrome were calculated. In all, 23.7% of men had the metabolic syndrome, whereas 40.1% of women had the metabolic syndrome in a Uighur population in Xinjiang; the prevalence of metabolic syndrome in women was significantly higher than that in men (P<0.001). In men, the waist-to-height ratio (WHtR) had the highest AUC value (AUC=0.838); it was followed by TGs/HDL-C (AUC=0.826), body mass index (BMI) (AUC=0.812), waist-to-hip ratio (WHR) (AUC=0.781), and body adiposity index (BAI) (AUC=0.709). In women, the TGs/HDL-C had the highest AUC value (AUC=0.815); it was followed by WHtR (AUC=0.780), WHR (AUC=0.730), BMI (AUC=0.719), and BAI (AUC=0.699). Similarly, among all five anthropometric and atherogenic parameters, the WHtR had the shortest ROC distance of 0.32 (Sen=85.40%, Spe=71.6%), and the optimal cutoff for WHtR was 0.55 in men. In women, TGs/HDL-C had the shortest ROC distance of 0.35 (Sen=75.29%, Spe=75.18%), and the optimal cutoff of TGs/HDL-C was 1.22. WHtR was the best predictor of metabolic syndrome in Uighur men, whereas TGs/HDL-C was the best predictor of metabolic syndrome in Uighur women in Xinjiang.
    Metabolic Syndrome and Related Disorders 03/2015; 13(5). DOI:10.1089/met.2014.0146 · 1.92 Impact Factor
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    ABSTRACT: Background CYP17A1 gene encodes P450c17 proteins, which is a key enzyme that catalyzes the formation of sex hormones. Many clinical studies showed that sex hormones levels play an important role in the pathogenesis of coronary artery disease (CAD). However, the relationship between CYP17A1 genetic polymorphisms and CAD remains unclear. The aim of this study was to investigate the association of CYP17A1 genetic polymorphisms with CAD in a Han population of China. Methods A total of 997 people include 490 patients and 507 controls were selected for the present study. Five single-nucleotide polymorphisms (SNPs) (rs4919686, rs1004467, rs4919687, rs10786712, and rs2486758) were genotyped by using the real-time PCR (TaqMan) method. Results For men, the rs10786712 was found to be associated with CAD in a recessive model (P = 0.016), after adjustment of the major confounding factors, the significant difference was retained (OR = 1.644, 95% confidence interval [CI]: 1.087-2.488, P = 0.019). For women, the rs1004467 was also found to be associated with CAD in a dominant model (P = 0.038), the difference remained statistically significant after multivariate adjustment (OR = 1.623, 95% CI: 1.023-2.576, P = 0.040). The distribution of rs4919687 genotypes showed a significant difference between CAD and control participants in a recessive model (P = 0.019), the significant difference was retained after adjustment for covariates (OR = 0.417, 95% CI: 0.188-0.926, P = 0.032). Conclusion Rs1004467, rs4919687, rs10786712 of CYP17A1 gene are associated with CAD in Han population of China. The TT genotype of rs10786712 could be a protective genetic marker of CAD in men. The CC genotype of rs1004467 and the AA genotype of rs4919687 could be risk genetic markers of CAD in women. However, large sample size study including other SNPs of CYP17A1 should be performed in future studies.
    Lipids in Health and Disease 03/2015; 14(1). DOI:10.1186/s12944-015-0007-4 · 2.31 Impact Factor
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    ABSTRACT: Objectives: The aim of this study was to evaluate the impact of mean platelet volume (MPV) on the intracoronary thrombus burden and short-term mortality in patients with ST-segment elevation myocardial infarction (STEMI) undergoing primary percutaneous coronary intervention (PCI). Backgroud: Platelets play a crucial role in the pathophysiology of coronary artery disease. MPV has been reported to be an indicator of platelet reactivity. Methods: A total of 649 consecutive STEMI patients who underwent primary PCI between January 2008 and December 2013 were enrolled and divided into two groups based on the thrombus burden: the large thrombus burden (LTB) group and the small thrombus burden (STB) group. The primary endpoint was all-cause mortality at 30 days. Results:The LTB group had significantly higher admission MPV compared with the STB group (10.77 ± 1.22 vs 9.95 ± 1.03, p<0.001). The cumulative 30-day all-cause mortality rate was significantly higher in the groups with high MPV and LTB (9.8% vs 2.5%, p<0.001, 8.6% vs 4.1%, p=0.036, respectively). In a receiver operating characteristic analysis, MPV ≥ 10.2 predicted LTB with 73.5% sensitivity and 68.9% specificity. Multivariate logistic regression analysis demonstrated MPV was an independent predictor of large intracoronary thrombus burden (OR 1.794, 95% CI 1.533 to 2.100, p<0.001) and 30-day all-cause mortality (HR 1.408, 95% CI 1.040 to 1.906, p=0.027). Conclusions: An increased MPV on admission is an independent predictor of large intracoronary thrombus burden and short-term mortality. It may be a useful biomarker for risk stratification in patients with STEMI undergoing primary PCI. This article is protected by copyright. All rights reserved. © 2015 Wiley Periodicals, Inc.
    Catheterization and Cardiovascular Interventions 01/2015; 85(S1). DOI:10.1002/ccd.25860 · 2.40 Impact Factor
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    ABSTRACT: The relationship between CYP17A1 genetic polymorphisms and coronary artery disease (CAD) remains unclear. The aim of the present study was to assess the association between CYP17A1 gene polymorphism and CAD in a Chinese Uygur population. A total of 493 people including 266 patients and 227 controls were selected for the present study. All CAD patients and controls were genotyped for the same five single nucleotide polymorphisms (SNPs) (rs4919686, rs1004467, rs4919687, rs10786712, and rs2486758) by a real-time PCR method. The rs4919686, rs1004467, and rs4919687 polymorphisms were found to be associated with CAD in genotypes, dominant model, recessive model, and allele frequency (rs4919686: all p<0.05, rs1004467: all p≤0.001, rs4919687: all p<0.001); the significant difference was retained (all p<0.05) after adjustment for the major confounding factors. The overall distribution of haplotypes established by SNP1-SNP4 (in total subjects and men) and SNP1-SNP4-SNP5 (in total subjects) were significantly different between the CAD patients and the control subjects (p=0.006, men: p=0.026, and p=0.030, respectively). Polymorphisms rs4919686, rs4919687 and rs1004467 were found to be associated with CAD in this Uygur population. © The Author(s) 2015.
    Journal of Renin-Angiotensin-Aldosterone System 01/2015; 16(2). DOI:10.1177/1470320314565840 · 2.27 Impact Factor
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    ABSTRACT: Acylation Stimulating Protein (ASP) stimulates adipocyte triglyceride synthesis and glucose transport. The aim was to examine ethnic difference in ASP and the relation to lipid profile and other parameters among Han, Uygur, and Kazak healthy populations matched for BMI, age and gender distribution. 331 healthy persons were recruited in total (age 30-60 yr): 137 Han, 114 Uygur, and 80 Kazak. Anthropometric measurements including height, weight, waist circumference, hip circumference, blood pressure, ankle brachial index (ABI), and pulse wave velocity (PWV) were measured in all participants. Fasting concentrations of fasting glucose, uric acid, and lipids, including triglyceride (TG), total cholesterol (TC), low density lipoprotein cholesterol (LDL-C), high density lipoprotein cholesterol (HDL-C), ASP, complement C3, insulin, non-esterified fatty acid (NEFA) and C-reactive protein (CRP) were measured. ASP in Uygurs was significantly lower than Han subjects (P=0.0003). The Uygurs demonstrated the highest C3 (P<0.001), CRP (P=0.001), and NEFA concentrations (P=0.008), the lowest %ASP/C3 (P<0.001) and TC levels (P=0.0008) vs those in Han and Kazak populations. In the Han group, glucose, the average ABI (an index of peripheral response) and diastolic blood pressure were significantly different from both Uygur and Kazak group (P=0.0007, P=0.0003, P=0.0001) while Kazaks show the lowest waist/hip circumference (WHR) (P=0.0003). There are ethnic differences in ASP, C3, CRP and lipid profiles in healthy Han, Uygur, and Kazak populations. Overall, the Uygur populations presents with a disadvantageous metabolic profile as compared to Han and Kazak groups.
    International Journal of Clinical and Experimental Medicine 01/2015; 8(2):2823-30. · 1.42 Impact Factor
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    ABSTRACT: Previous studies suggested the single nucleotide polymorphism (SNP) of COX-2 -765G>C (rs20417) is associated with coronary artery disease (CAD), but the results were conflicting. In order to derive a more precise estimation of the associations, we performed a meta-analysis of the relationship between rs20417 and CAD in all published studies. Databases including PubMed, Web of Science, Wanfang, SinoMed and CNKI were systematically searched. Data were extracted using standardized methods. The association was assessed by odds ratio (OR) with 95% confidence intervals (CIs).The statistical tests were performed using Review Manager 5.3.3 and Stata 12.0 software. We identified a total of 14 studies involving a total of 18227 subjects. The pooled odds ratio (OR) for the association between COX-2 -765G>C and CAD and its corresponding 95% confidence interval (95% CI) were evaluated by random or fixed effect model. A significant statistical association between COX-2 -765G>C and CAD was observed in an allelic model (P=0.02, OR=0.64, 95% CI: 0.43-0.94), dominant model (P=0.04, OR=0.74, 95% CI: 0.56-0.99), and recessive model (P=0.02, OR=0.46, 95% CI: 0.23-0.90). This meta-analysis suggested that COX-2 -765G>C is a protective for CAD.
    International Journal of Clinical and Experimental Medicine 01/2015; 8(5):7412-8. · 1.42 Impact Factor
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    ABSTRACT: Recent studies in cancer have demonstrated that cancerous tissues have a significantly higher MALAT1 level than in noncancerous tissues. Overexpression of MALAT1 is associated with susceptibility to lymph node metastasis. This meta-analysis collected all relevant articles and explored the association of MALAT1 expression levels with lymph node metastasis in patients with carcinoma. Literature collections were conducted by searching electronic databases PubMed, Cochrane Library, Web of Science (up to January 20, 2015). The odds ratio (OR) and its corresponding 95% confidence interval (CI) were calculated to assess the strength of the association by using RevMan5.1 software. A total of 573 patients from 5 studies were included in this meta-analysis. The results showed lymph node metastasis occurred more frequently in patients with high MALAT1 expression group than in patients with low MALAT1 expression group (OR = 2.64, 95% CI 1.06-6.56, P = 0.04 random-effects model). This meta-analysis demonstrated that overexpression of MALAT1 is significantly associated with lymph node metastasis in carcinoma patients.
    International Journal of Clinical and Experimental Medicine 01/2015; 8(5):7648-54. · 1.42 Impact Factor
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    ABSTRACT: Previous studies have investigated the associations between polymorphisms of interleukin-10 (IL-10) gene and risk of ischemic stroke (IS). However, the results were inconsistent. The aim of this study was to clarify the relationship between IL-10 polymorphisms and IS risk by a meta-analysis approach. The meta-analysis was performed by searching PubMed and Wanfang databases. Odds ratio (OR) and corresponding 95% confidence interval (95% CI) as well as effect size were calculated by a fixed or random-effect model according to the I(2) value. In total, five case-control studies for IL10-1082G/A and four studies for IL10-819C/T were included in this meta-analysis. Combined analysis indicated that IL10-1082G/A polymorphism was associated with risk of IS (A/A vs. G/G+G/A: OR = 1.82, 95% CI = 1.21-2.74, P = 0.004; for A allele vs. G allele: OR = 1.55, 95% CI = 1.14-2.10, P = 0.006). However, there was no significant association between IL10-819C/T polymorphism and IS in any comparison model (C/C vs. T/C+T/T: OR = 0.96, 95% CI = 0.69-1.36, P = 0.84; C allele vs. T allele: OR = 1.00, 95% CI = 0.83-1.21, P = 0.97). Our results indicated that IL-10-1082G/A polymorphism, but not IL10-819C/T polymorphism was associated with the risk of IS.
    International Journal of Clinical and Experimental Medicine 01/2015; 8(2):1888-95. · 1.42 Impact Factor
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    ABSTRACT: Pulse wave velocity (PWV) is a noninvasive index of arterial stiffness and an independent predictor of cardiovascular outcomes. Type IV collagen is an important structural component of the vascular basement membrane, thus it is important for the integrity and functions of basement membrane. However, the relationship between genetic polymorphisms of COL4A1 gene and PWV in healthy Han Chinese and Uygur subjects remains unclear. We aimed to investigate the association between PWV and COL4A1 genetic polymorphisms in healthy Han Chinese and Uygur subjects. A total of 1533 subjects (909 Han, 624 Uygur) were selected from the Cardiovascular Risk Survey (CRS) study. Two SNPs (rs605143 and rs565470) were genotyped by using the polymerase chain reaction-restriction fragment length (PCR-RFLP) method. In the Uygur population, the two SNPs (rs605143 and rs565470) were associated with PWV by analyses of a recessive model (p = 0.002, p = 0.008, respectively), and the difference remained significant after multivariate adjustment (p = 0.004, p = 0.001, respectively); the AA genotype of rs605143 was associated with increased PWV value compared with the AG or GG genotype (1543.36 ± 324.79 cm/s vs. 1530.45 ± 314.24 cm/s and 1522.93 ± 316.00 cm/s); and the CC genotype of rs565470 was associated with increased PWV value compared with the CT or TT genotype (1647.90 ± 553.27 cm/s vs. 1506.8 ± 357.35 cm/s and 1488.4 ± 344.32 cm/s). But for healthy Han Chinese subjects, this association was not observed in rs605143 and rs565470 before and after multivariate adjustment. Both rs605143 and rs565470 in the COL4A1 gene are associated with PWV in healthy Uygur subjects, indicating that carriers of the A allele of rs605143 and the C allele of rs565470 have a high risk of Arterial stiffness.
    International Journal of Clinical and Experimental Medicine 01/2015; 8(2):2693-701. · 1.42 Impact Factor
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    Zhan Sun · Yi-Tong Ma · Bang-Dang Chen · Fen Liu
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    ABSTRACT: Oxidative stress is a major mechanism underlying the pathogenesis of cardiovascular disease. It can trigger inflammatory cascades which are primarily mediated via nuclear factor-κB (NF-κB). The NF-κB transcription factor family includes several subunits (p50, p52, p65, c-Rel, and Rel B) that respond to myocardial ischemia. It has been proved that persistent myocyte NF-κB p65 activation in heart failure exacerbates cardiac remodeling. A recombinant adeno-associated virus serotype 9 carrying enhanced green fluorescent protein and anti-NF-κB p65 ribozyme (AAV9-R65-CMV-eGFP) was constructed. The cells were assessed by MTT assay, Annexin V-propidium iodide dual staining to study apoptosis. The expression of P65 and P50 were assessed by Western blot to investigate the underlying molecular mechanisms. After stimulation with H2O2 for 6 h, H9c2 cells viability decreased significantly, a large fraction of cells underwent apoptosis. We observed a rescue of H9c2 cells from H2O2-induced apoptosis in pretreatment with AAV9-R65-CMV-eGFP. Moreover, AAV9-R65-CMV-eGFP decreased H2O2-induced P65 expression. AAV9-R65-CMV-eGFP protects H9c2 cells from oxidative stress induced apoptosis through down-regulation of P65 expression. These observations indicate that AAV9-R65-CMV-eGFP has the potential to exert cardioprotective effects against oxidative stress, which might be of great importance to clinical efficacy for cardiovascular disease.
    Journal of Geriatric Cardiology 12/2014; 11(4):311-5. DOI:10.11909/j.issn.1671-5411.2014.04.006 · 1.06 Impact Factor
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    ABSTRACT: Objective: This study aimed to identify the best predictor of metabolic syndrome (MetS) by comparing the predicting ability of various anthropometric and atherogenic parameters in the Chinese Han population in Xinjiang. Methods: A representative, cross-sectional sample of 5,757 Chinese Han adults were selected from the Cardiovascular Risk Survey conducted from October 2007 to March 2010. MetS prevalence, area under the curve (AUC), distance on the receiver operating characteristic curve and the cut-offs of each variable were compared for the presence of MetS. Results: According to the criteria of the International Diabetes Federation (IDF), the Joint Interim Statement (JIS) and the Third Adult Treatment Panel (ATPIII), 32.1, 48.5, 39.3% of men and 38.0, 45.1, 44.9% of women had MetS in Xinjiang. According to the IDF criteria, the waist-to-height ratio (WHtR) had the highest AUC value in men (0.836) and women (0.837), with the optimal cut-off of 0.54 in men and 0.53 in women. According to both the JIS and ATPIII criteria, triglycerides/high-density lipoprotein cholesterol TG/HDL-C had the highest AUC value in men (0.830 and 0.833, respectively) and women (0.832 and 0.827, respectively), with the optimal cut-offs being 1.6 and 1.2 in men and 1.1 and 1.1 in women, respectively. Conclusion: WHtR was the best predictor of MetS according to the IDF criteria while TG/HDL-C was the best predictor of MetS according to the JIS and ATPIII criteria. © 2014 S. Karger AG, Basel.
    Annals of Nutrition and Metabolism 10/2014; 65(4):280-288. DOI:10.1159/000366427 · 2.75 Impact Factor