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1.
Introduction
Endothelial nitric oxide synthase (eNOS) 894 G > T polymorphism may influence the risk of thrombotic disease, but data from published studies with low statistical power are inconclusive. To investigate the association between the gene polymorphism and thrombotic disease, a meta-analysis was performed.Materials and Methods
Case–control studies evaluating the association between the eNOS G894T polymorphism, Glu298Asp and thrombotic disease were searched in PubMed, OVID, Web of Science, Google Scholar and China Biology Medicine disc (CBM). Data were available for 4742 cases and 4066 controls from 17 studies.Results
In all, although there was a significant association between G894T and thrombotic disease (G/T + T/T vs. G/G: OR = 1.364, 95%CI = 1.126-1.652, P = 0.001; T/T vs. G/T + G/G: OR = 1.861, 95%CI = 1.207-2.870, P = 0.005; TT vs. GG: OR = 1.938, 95%CI = 1.244-3.021, P = 0.003; G/T vs. G/G: OR = 1.225, 95%CI = 1.022-1.469, P = 0.028), there was significant heterogeneity among studies (P* < 0.001). In subgroup analysis, there was significant association with no heterogeneity in venous thrombosis (G/T + T/T vs. G/G: OR = 1.409, 95%CI = 1.135-1.750, P = 0.002, P* = 0.508; T/T vs. G/G: OR = 1.640, 95%CI = 1.011-2.660, P = 0.045, P* = 0.333; G/T vs. G/G: OR = 1.357, 95%CI = 1.082-1.701, P = 0.008, P* = 0.595) and in Asian population (G/T + T/T vs. G/G: OR = 1.722, 95%CI = 1.443-2.055, P < 0.001, P* = 0.541; T/T vs. G/T + G/G: OR = 2.357, 95%CI = 1.389-4.000, P = 0.001, P* = 0.908; T/T vs. G/G: OR = 2.813, 95%CI = 1.645-4.810, P < 0.001, P* = 0.969; G/T vs. G/G: OR = 1.645, 95%CI = 1.370-1.975, P < 0.001, P* = 0.489).Conclusions
Findings of this meta-analysis demonstrated that eNOS G894T polymorphism may be a risk factor for venous thrombosis, and in Asia the polymorphism may increase the risk of developing thrombotic disease. 相似文献2.
Li YY Zhai ZG Yang YH Pang BS Wang HY Zhang W Zhao L Wang J Wang C 《Thrombosis research》2011,127(4):324-327
Introduction
Endothelium derived nitric oxide (NO) is a key mediator of vascular homeostasis. Endothelial nitric oxide synthase (eNOS) gene, by affecting the expression and functional activity of the eNOS enzyme, thereby reducing NO availability, may be implicated in venous thromboembolism (VTE). We investigated the eNOS G894T polymorphism in VTE patients in the Chinese population.Materials and methods
A case-control study was conducted in a general hospital. Blood samples, collected from 462 consecutive patients with VTE and 462 healthy controls, were used for DNA extraction. Single nucleotide polymorphisms (SNP) of eNOS (894 G/T) were determined by allele specific-polymerase chain reaction (ARMS-PCR) analysis.Results
The eNOS 894 G/T polymorphism alleles distribution was in agreement with the principle of Hardy-Weinberg equilibrium. The prevalence of homozygote, heterozygote and pathological homozygote for the eNOS G894T polymorphism in VTE patients was 79.7%, 18.1% and 2.2%, respectively (controls: 86.6%,12.3% and 1.1%). T allele distribution in the VTE (11.3%) and especially the male VTE patients (12.5%) was more common than in healthy controls (7.3%). The frequency of GT + TT genotype was significantly higher among the age ≤ 55 years patients in VTE group than in controls (20.1% vs. 12.2%, P = 0.033).Conclusion
Our result demonstrates that the 894 G/T polymorphism variant of eNOS is a risk factor for VTE in Chinese population. 相似文献3.
Lian Gu Wenhui Liu Yan Yan Li Su Guangliang Wu Baoyun Liang Jinjing Tan Guihua Huang 《Thrombosis research》2014
Background
Ischemic stroke (IS) and coronary heart disease (CHD) are two vascular disorders that are a common cause of death worldwide. Several studies have assessed the association of the β-fibrinogen-455G/A (FGB-455G/A) polymorphism and risk of IS and CHD, but the results are still inconsistent. Our study aimed to investigate whether the FGB-455G/A polymorphism was associated with susceptibility to IS and CHD by using meta-analysis.Methods
Relevant studies were identified from PubMed, Embase and four Chinese database up to July 2013.Data were analyzed and processed by Stata 11.2. A pooled OR with 95% CI was calculated to estimate the strength of the genetic association. Cumulative meta-analysis was performed to assess the tendency of pooled OR over time.Results
45 studies based on a total of 7238 cases and 7395 controls were included in our meta-analysis. The results indicated that the FGB-455G/A polymorphism is associated with the risk of IS when compared with the dominant model (OR = 1.518, 95%CI = 1.279-1.802 for AA + GA vs. GG). In the subgroup analysis by ethnicity, significantly elevated risks were associated with the A allele in Asians (OR = 1.700, 95%CI = 1.417-2.040), but not in Caucasians (OR = 0.942, 95%CI = 0.813-1.091). Both the hypertension and non-hypertension subgroups reached significant results, but no significance was found when stratified according to sex or subtype of IS. Results indicate that the FGB-455G/A polymorphism is associated with CHD (OR = 1.802, 95%CI = 1.445-2.246).Conclusion
Our meta-analysis suggests that the FGB-455G/A polymorphism contributes to susceptibility to IS and CHD. 相似文献4.
Introduction
Epidemiological studies have evaluated the association between factor XIII-A (FXIII-A) Val34Leu polymorphism and risk of ischemic stroke, but the results remain inconclusive. This meta-analysis was therefore designed to clarify these controversies.Methods
Systematic searches of electronic databases Embase, PubMed and Web of Science, as well as hand searching of the references of identified articles and the meeting abstracts were performed. Study selection, data abstraction and study quality evaluation (using the Newcastle-Ottawa Scale, NOS) were independently conducted in duplicate. Statistical analyses were performed using software Review Manager (Version 5.1.2) and Stata (Version 11.0). The pooled odds ratios (ORs) with 95% confidence intervals (95%CIs) were performed. Fixed or random effects model was separately used depending on the heterogeneity between studies. Publication bias was tested by funnel plot, Egger's regression test and Begg's test. Sensitivity analysis was conducted by limiting the meta-analysis to the high quality studies (NOS score≥8).Results
A total of 16 studies including 3,807 cases and 4,993 controls were combined showing no evidence of association between FXIII-A Val34Leu polymorphism and ischemic stroke (for Val/Leu vs. Val/Val : OR = 0.95, 95%CI = 0.77-1.16; for Leu/Leu vs. Val/Val: OR = 0.90, 95%CI = 0.73-1.11; for dominant model: OR = 0.97, 95%CI = 0.81-1.17; for recessive model: OR = 0.95, 95%CI = 0.77-1.17). In the subgroup analyses by study design, ethnicity and specific subtypes (small-vessel occlusive ischemic stroke and large-artery atherosclerotic ischemic stroke ), there was lack of evidence for the association.Conclusions
This meta-analysis indicates that there is no evidence for association between factor XIII-A Val34Leu polymorphism and ischemic stroke. 相似文献5.
Objective
Many studies have suggested that adiponectin gene might be involved in the development of coronary artery disease (CAD). However, the results have been inconsistent. In this study, the authors performed a meta-analysis to assess the associations of + 45T/G, + 276G/T and − 11377C/G polymorphisms in adiponectin gene with CAD susceptibility.Methods
Published literature from PubMed and EMBASE databases were searched. Pooled odds ratio (OR) and corresponding 95% confidence interval (CI) were calculated using fixed- or random-effects model.Results
Sixteen studies (4394 cases / 8187 controls) for + 45T/G polymorphism, fifteen studies (3569 cases / 7463 controls) for + 276G/T polymorphism, and thirteen studies (3531 cases / 7072 controls) for − 11377C/G polymorphism were included in the meta-analysis. The overall results showed that there was a statistically significant association between − 11377C/G polymorphism and CAD (G vs. C: OR = 1.15, 95%CI 1.07-1.24).Similar results were observed among European (G vs. C: OR = 1.11, 95%CI 1.02-1.20) and East Asian populations (G vs. C: OR = 1.27, 95%CI 1.11-1.45). However, no significant association was found for + 45T/G or + 276G/T polymorphism with CAD susceptibility.Conclusions
The meta-analysis indicated the significant association of − 11377C/G polymorphism, but not + 45T/G or + 276G/T polymorphism, with CAD susceptibility. However, large-scale studies with the consideration of gene-gene and gene-environment interactions should be conducted to investigate the associations in future. 相似文献6.
LL Gong JH Peng FF Han J Zhu LH Fang YH Wang GH Du HY Wang LH Liu 《Thrombosis research》2012,130(3):e43-e51
Introduction
To investigate whether t-PA Alu repeat insertion/deletion (I/D) and PAI-1 4 G/5 G genetic variations are associated with the risk of MI.Methods
We conducted a meta-analysis to assess the association between the t-PA I/D and PAI-1 4 G/5 G polymorphisms and risk of MI. We also performed subgroup analyses based on ethnicity (Caucasian, Asian, and African), gender and age. Forty one eligible studies including 12,461 cases and 14,993 controls were identified to evaluate the impact of PAI-1 4 G/5 G polymorphism on MI. Seven studies investigated the relationship between t-PA I/D and MI.Results
This meta-analysis revealed that the PAI-1 4 G allele (4 G/4 G and 4 G/5 G genotype) was associated with an increased risk of MI compared with the 5 G allele in the overall population (OR = 1.094, 95% CI = 1.021 - 1.172, p = 0.011). The relative risks of MI for 4 G/4 G genotype was increased when compared to 5 G/5 G genotype and 5 G allele, with odds ratio at 1.157 (95% CI 1.015 - 1.320, p = 0.029) and 1.126 (95% CI = 1.015 - 1.249, p = 0.025). However, the results show that the 4 G/5 G polymorphism risk for MI was not associated with ethnicity stratification as Caucasian, Asian or African population. No substantial differences in the genotype distributions were observed in the MI group and control group along the lines of gender and age. After multivariable analysis t-PA I/D polymorphism showed no consistent association with MI.Conclusions
This study suggests that the 4 G/5 G polymorphism of PAI-1 may be a risk factor for MI in overall populations. 相似文献7.
Nan Li 《Brain research bulletin》2010,81(1):38-42
Background
The single-nucleotide polymorphisms (SNPs) of the phosphodiesterase 4D (PDE4D) and interleukin-1 (IL-1) genes are associated with increased risk for the development of ischemic stroke (IS) in whites. However, little is known about whether this association could also occur in Han Chinese.Method
A total of 371 patients with IS and unrelated healthy controls were recruited and the SNPs of the PDE4D (83T/C), (87T/C), IL-1 (−889C/T) and IL-1 (−511C/T) were characterized, respectively, by polymerase chain reactions-restriction fragment length polymorphism (PCR-RFLP). The genotype and allele frequencies of these SNPs in this population were statistically analyzed.Results
The genotype and allele frequencies of the PDE4D (87T/C) and IL-1 (−511C/T) were similar between IS patients and controls. In contrast, the frequencies of CC genotype and C allele of the PDE4D (83T/C) and the T allele frequency of IL-1 (−889C/T) in IS patients were significantly higher than that in healthy controls (p = 0.001, p = 0.003 and p = 0.02, respectively), independent of the conventional risk factors. The values of odds ratio (OR) reached at OR = 1.603; 95%CI = 1.032-2.489; p = 0.036 for the CC genotype of the PDE4D (83T/C) and OR = 1.913; 95%CI = 1.621-2.375; p = 0.034 for the TT genotype of the IL-1 (−889C/T), respectively.Conclusions
the SNPs of the PDE4D (83T/C) and IL-1 (−889C/T) were associated with increased risk for the development of IS in Northern Han Chinese. 相似文献8.
Introduction
The ABCB1 C3435T polymorphism limits oral bioavailability of clopidogrel and may influence prognosis of patients treated with clopidogrel. Several studies have examined the association between the C3435T polymorphism and risk of adverse clinical events in clopidogrel treated patients, but the results were inconsistent. To assess the role of the C3435T polymorphism in the impact on clinical outcomes, a meta-analysis was conducted.Methods
6 studies with 10,153 subjects were included in this meta-analysis. Fixed- or random-effects model was chosen according to heterogeneity. Publication bias was evaluated by fail-safe numbers.Results
The association of the C3435T polymorphism with risk of overall recurrent ischemic events in clopidogrel treated patients was not statistically significant for all genetic models (OR = 1.13, 95%CI: 0.78-1.64, P = 0.51; OR = 1.15, 95%CI: 0.99-1.33, P = 0.07; OR = 1.19, 95%CI: 0.81-1.76, P = 0.37). Significant association was identified between the C3435T polymorphism and risk of short-term recurrent ischemic events (OR = 1.55, 95% CI: 1.09-2.20, P = 0.01; OR = 1.41, 95% CI: 1.06-1.87, P = 0.02; OR = 1.77, 95% CI: 1.19-2.63, P = 0.005). No statistically significant association between the C3435T polymorphism and stent thrombosis (OR = 0.79, 95% CI: 0.47-1.32, P = 0.37) or bleeding (OR = 0.98, 95% CI: 0.79-1.21, P = 0.82) was identified. The results may be affected by publication bias.Conclusions
This meta-analysis failed to show an association between the ABCB1 C3435T polymorphism and risk of overall recurrent ischemic events, stent thrombosis or bleeding in clopidogrel treated patients. However, the association between TT homozygotes of the C3435T polymorphism and risk of short-term recurrent ischemic events may exist, but needs more studies to confirm. 相似文献9.
Zhou J Huang Y Huang RS Wang F Xu L Le Y Yang X Xu W Huang X Lian J Duan S 《Thrombosis research》2012,130(4):602-606
Introduction
Peden et al. have revealed a significant association between four new risk loci and coronary heart disease (CHD) in Europeans and South Asians. The goal of this study is to evaluate the contribution of these genetic loci to CHD risk in Han Chinese.Methods
We recruited 161 CHD patients and 112 controls proved by angiography originated from Ningbo in the Eastern China, and performed a case-control association study of the four significant SNPs.Results
Among the four tested SNPs, we found a significant association of rs974819 in PDGFD gene with CHD (allele p = 0.04; OR = 1.45, 95% CI = 1.02 - 2.08) and the allele A/G of rs974819 shows significant difference in females (allele p = 0.04; OR = 1.83, 95% CI = 1.01 - 3.31). A further meta-analysis showed that rs974819 of PDGFD gene was significantly associated with an increasing risk of CHD (OR = 1.08, 95% CI = 1.05 - 1.11) in both Europeans and South Asians including Han Chinese.Conclusions
Our findings suggests that rs974819 of PDGFD is also a CHD risk factor in Han Chinese. In addition, it presents a sex-dependent genetic effect. 相似文献10.
Introduction
Previous studies have evaluated the association between FCGR2A H131R (rs1801274) polymorphism and idiopathic (immune) thrombocytopenic purpura (ITP), but results remain inconsistent. This meta-analysis was conducted to clarify these controversies.Methods
Literatures on PubMed/ Medline, Embase and CENTRAL databases up to September 2013 were searched by two investigators. The distributions of alleles and genotypes between cases and controls were compared by using odds ratios (ORs) and 95% confidence intervals (95% CIs). Fixed or Random-effects models were used when appropriate.Results
10 studies involving 553 patients and 1088 controls were available for this study, including 7 studies of Caucasian descendents, 2 studies of Asian descendents, and 1 study contained diverse ethnicity. In this studied overall population, we didn’t found any significant association between the FCGR H131R polymorphism and the risk of ITP for all genetic models. But in the subgroup analysis, a significant association between FCGR H131R polymorphism and ITP susceptibility was observed in Caucasian population of childhood-onset group for H vs. R (OR = 1.246, 95% CI 1.021-1.522, p = 0.031), HH vs. HR + RR (OR = 1.562, 95% CI 1.145-2.129, p = 0.005), HH vs. HR (OR = 1.598, 95% CI 1.146-2.228, p = 0.006), HH vs. RR (OR = 1.484, 95% CI 1.005-2.191, p = 0.047). No significantly between-study heterogeneity was observed for all genotype models in Caucasian childhood-onset ITP subtype analysis. However, this association was not stable after sensitivity analysis.Conclusion
Our present meta-analysis indicated that FCGR H131R polymorphism might not be associated with risk of ITP in overall population. However, in Caucasian childhood-onset subgroup, there might be an association between FCGR2A H131R polymorphism and ITP risk, which is not robust and should be explained with caution. 相似文献11.
Purpose
Several studies have reported apparently conflicting findings for the effects of tumor necrosis factor-alpha (TNF-α) G-308A polymorphism on coronary heart disease (CHD) susceptibility. We undertook a systematic review and meta-analysis to investigate the association between this gene variant and CHD predisposition.Methods
We systematically searched electronic databases (Medline, EMbase, Chinese BioMedical, BIOSIS, Global Health, PsycINFO, Allied and Complementary Medicine Database, Cochrane Library, HuGE Navigator, and British Nursing) for relevant studies published between 1947 and October, 2010. Summarized estimation of odds ratio (OR) and 95% confidence interval (CI) were calculated. Publication bias and heterogeneity among studies were explored.Results
We identified 24 studies providing data for 9 921 cases and 7 944 controls. Pooled analysis based on ORs adjusted by CHD risk factors showed that carrying the TNF-α gene A variant conferred a 1.5-fold increased risk of developing CHD (AG + AA vs. GG, OR = 1.50, 95% CI: 1.23-1.77) in Caucasian population. No significant association between the gene polymorphism and CHD risk could be found in other ethnic groups.Conclusions
It is probable that carrying the A variant is associated with CHD risk in Caucasians but not in Asians, Indians, or Africans. Further studies are merited to assess the association in greater details, especially in Asians, Indians and Africans. 相似文献12.
Introduction
Toll like receptor 4 (TLR4) expression was found to increase markedly in human atherosclerotic lesions, notably on macrophages and endothelial cells. TLR4 Asp299Gly polymorphism was associated with a blunted receptor activity and a subsequently diminished inflammatory response, and may subsequently reduce atherosclerosis (AS) risk. However, the results of molecular epidemiological studies remained inconsistent.Materials and methods
The PubMed, CNKI databases were searched for all articles available. The OR corresponding to the 95% confidence interval (95% CI) was used to assess the association between TLR4 Asp299Gly polymorphism and risk of AS.Results
15 case-control studies with 9,989 cases and 6,746 controls were available for this analysis. For control subjects, G allele frequency of TLR4 Asp299Gly polymorphism was ranging from 0.045 to 0.085. The G allele and the AG/GG genotypes were not associated with significantly risk of AS (OR = 1.02, 95% CI = 0.83 - 1.26 for G versus A and OR = 0.96, 95% CI = 0.80 - 1.15 for AG/GG versus AA, respectively) by random effects model.Conclusion
These findings indicated that TLR4 Asp299Gly polymorphism may not play a role in AS development. 相似文献13.
Shengxia Fang 《Thrombosis research》2010,125(5):e197
Introduction
The C242T polymorphism of p22phox gene (rs4673) has been linked to the reduced coronary artery disease (CAD) risk, but results in the published literatures are controversial. A meta-analysis was performed to assess the effect of this polymorphism on the CAD risk.Methods
A comprehensive search was conducted to identify all studies on the association of p22phox gene C242T polymorphism with CAD risk. The fixed or random effect pooled measure was selected based on the homogeneity test among studies. Heterogeneity among studies was evaluated using Q test and the I2 of Higgins and Thompson. Meta-regression was used to explore the sources of between-study heterogeneity. Publication bias was estimated using modified Egger's linear regression test proposed by Harbord etal.Results
We identified 15 published articles including 6273 CAD cases and 5045 controls. In this studied overall and non-Asian populations, we didn't found any significant association of p22phox gene C242T polymorphism with CAD in any of codominant, dominant, and recessive models. Only in Asian population, both fixed effect model (FEM) and random effect model (REM) indicated the significant protective effect both in codominant (FEM: OR = 0.771, 95%CI: 0.681-0.873; REM: OR = 0.751, 95%CI: 0.607-0.930) and dominant (FEM: OR = 0.714, 95%CI: 0.621-0.822; REM: OR = 0.694, 95%CI: 0.538-0.895) models with strong evidence for between-study heterogeneity (I2 = 52.6% for codominant and I2 = 56.5% for dominant), but not in recessive model. No evidence of publication bias was detected.Conclusions
The results suggested a significant heterogeneity across ethnicities about the relationship between the T allele of p22phox gene C242T polymorphism and reduced CAD risk, with a significant protective effect only in Asian population that needs to be confirmed by further studies. 相似文献14.
G Lian Y Yan L Jianxiong X Juanjuan C Qing W Guangliang S Li 《Thrombosis research》2012,130(3):e95-e102
Background
In 2009, a GWAS has confirmed that rs11833579 and rs12425791 near the NINJ2 gene could increase the stroke and ischemic stroke (IS) risk. Recently, several studies have been implemented to assess the relationship between the two SNPs and ischemic stroke risk in Asian. However, the results were poorly consistent. To study the association between the both polymorphisms and the risk of ischemic stroke, we performed a meta-analysis.Methods
We used odds ratios (ORs) with 95% confidence intervals (CIs) to evaluate the strength of association. The heterogeneity was checked by Q test and the inconsistency index (I2). Begg's test and Egger's test were used to assess the possible publication bias.Results
Our study included 6 articles, contained 9 independent case-control studies, involved a total of 9,142 cases and 10,652 controls about rs11833579, 10,165 cases and 11,592 controls about rs12425791. There was a significant association between rs12425791 and IS risk with dominant genetic model (OR = 1.087, 95%CI = 1.021-1.158, I2 = 34.6%, P = 0.152), but not with recessive genetic model and allele A vs. allele G. For rs11833579, we failed to verify it relate with IS risk under allele A vs. allele G, dominant and recessive genetic model.Conclusions
This meta-analysis suggest that rs12425791 is relative to ischemic stroke risk under dominant model in Asian population, but not for rs11833579. 相似文献15.
Xiao-Nan Liang Li Xie Jian-Wen Cheng Zhen Tan Jun Yao Qian Liu Wei Su Xue Qin Jin-Min Zhao 《Thrombosis research》2013
Background
The polymorphism of the plasminogen activator inhibitor-1 (PAI-1) 4G/5G gene has been correlated with susceptibility to osteonecrosis of the femoral head (ONFH), but study results are controversial. The aim of this study was to derive a more precise estimation of the relationship between the PAI-1 4G/5G Gene polymorphism and ONFH by performing a meta-analysis.Methods
The meta-analysis was based on five eligible case-control studies involving 419 cases and 969 controls and summarized data indicating the association between PAI-1 polymorphism and risk of osteonecrosis of the femoral head. Odds ratios (OR) with 95% confidence intervals (95% CI) were used to assess the strength of this association in the random-effects model or fixed-effects model.Results
A significant association between PAI-1 4G/5G polymorphism and ONFH susceptibility was observed for 4G4G + 4G5G vs. 5G5G (OR = 1.766, 95% CI 1.279–2.437, P = 0.001), 4G/4G vs. 4G/5G + 5G/5G (OR = 2.050, 95% CI 1.581–2.657, P = 0.000), 4G/4G vs. 5G/5G (OR = 2.553, 95% CI 1.345–4.846, P = 0.004), and 4G vs. 5G (OR = 1.758, 95% CI 1.236–2.500, P = 0.002). No significant association between PAI-1 4G/5G polymorphism and ONFH susceptibility was observed for 4G/5G vs. 5G/5G (OR = 1.327, 95% CI 0.939–1.877, P = 0.109).Conclusions
This meta-analysis suggested that 4G/5G polymorphism of the PAI-1 gene was a risk factor for ONFH. This study also suggests that the PAI-1 4G4G genotype may indicate a risk for ONFH. 相似文献16.
Constantine N. Antonopoulos George S. SfyroerasJohn D. Kakisis Konstantinos G. MoulakakisChristos D. Liapis 《Thrombosis research》2014
Introduction
Soluble P selectin (sPsel), a member of the selectin family of cell adhesion receptors, has been proposed as a key molecule in hemostasis and thrombosis mediating platelet rolling, generating procoagulant microparticles and enhancing fibrin deposition. The aim of this study was to examine the role of sPsel in the diagnosis of venous thromboembolism (VTE).Materials and Methods
We performed a systematic review and we used meta-analysis to synthesize data from published studies reporting sPsel levels in patients with i) VTE (deep venous thrombosis; DVT or DVT and pulmonary embolism; PE) and ii) DVT only. Pooled Odds Ratios (ORs) with 95% Confidence Intervals (CIs) were appropriately calculated among patients and controls. Diagnostic performance of sPsel was tested with pooled sensitivity, specificity, Diagnostic Odds Ratio (DOR) and summary receiver operator characteristic (SROC) curve.Results
Eleven studies, comprising of 586 VTE patients and 1,843 controls were deemed eligible. The sPsel was significantly increased after VTE (OR = 2.89, 95%CI = 2.31-3.61, p < 0.001), or DVT only (OR = 2.64, 95%CI = 1.95-3.56, p < 0.001). Subgroup analysis evidenced that sPsel was also increased after VTE when evaluating only studies with patients that had no prior medical history (OR = 2.88, 95%CI = 1.98-4.19, p < 0.001). Exclusion of studies including patients with solid organ tumor, HIV or lupus anticoagulants positive patients did not alter findings. Pooled sensitivity and specificity of sPsel was 0.57 (95%CI = 0.30-082, p < 0.001) and 0.73 (95%CI = 0.51-0.90, p < 0.001), respectively and DOR was 4.31 (95%CI = 2.22-8.37, p < 0.01). SROC curve yielded in significant accuracy of sPsel performance (AUC = 0.74, p = 0.05).Conclusions
The sPsel was significantly elevated in patients with DVT, both uncomplicated and complicated with PE and presented with high levels of diagnostic performance. sPsel is a plasma biomarker that may help in the diagnosis of VTE. 相似文献17.
Jiarong Wang Chengdi Wang Nan Chen Chi Shu Xiaojiang Guo Yazhou He Yanhong Zhou 《Thrombosis research》2014
Introduction
The plasminogen activator inhibitor-1 (PAI-1) 4G/5G polymorphism was considered to be associated with risk of venous thromboembolism (VTE), while evidence remains inadequate. To provide a more accurate estimation of this relationship, we performed an updated meta-analysis of all eligible studies.Materials and Methods
A systematical search was performed in PubMed, EMBASE, Wanfang, China National Knowledge Infrastructure (CNKI) and Cqvip databases to identify relevant studies published before March 6th 2014. The odds ratios (ORs) with 95% confidence intervals (CIs) were pooled using the fixed/random-effects model using Review Manager 5.1 and STATA 12.0.Results
A total of 34 studies with 3561 cases and 5693 controls were analyzed. Overall, significant association between the PAI-1 4G/5G variant and VTE risk in total population (dominant model: OR = 1.32, 95%CI: 1.13-1.54) was observed. And this variant was also related to the deep vein thrombosis risk (dominant model: OR = 1.60, 95%CI: 1.24-2.06, P = 0.0003). In the subgroup analyses on ethnicity, significant results were obtained in both Asians (dominant model: OR = 2.08, 95%CI: 1.29-3.35, P = 0.003) and Caucasians (dominant model: OR = 1.31, 95%CI: 1.10-1.56, P = 0.003). However, no significant association was found in patients with provoked VTE. In terms of subgroup analyses on co-existence of other thrombotic risk factors, the PAI-1 4G/5G polymorphism was significantly associated with VTE risk in patients with factor V Leiden mutation (dominant model: OR = 1.72, 95%CI: 1.17-2.53), but not in patients with cancer or surgery.Conclusion
Our findings demonstrate the role of PAI-1 4G/5G polymorphism being a risk candidate locus for VTE susceptibility, especially in patients with other genetic thrombophilic disorders. 相似文献18.
Saiz PA García-Portilla P Paredes B Corcoran P Arango C Morales B Sotomayor E Alvarez V Coto E Flórez G Bascaran MT Bousoño M Bobes J 《Progress in neuro-psychopharmacology & biological psychiatry》2011,35(6):1518-1524
Objective
To investigate whether functional polymorphisms directly (HTR2A and SLC6A4 genes) or indirectly (IL-1 gene complex, APOE and ACE genes) related with serotonergic neurotransmission were associated with suicidal behavior.Subjects and methods
227 suicide attempters, 686 non-suicidal psychiatric patients, and 420 healthy controls from a homogeneous Spanish Caucasian population were genotyped using standard methods.Results
There were no differences in genotype frequencies between the three groups. The −1438A/G [χ2 (df) = 9.80 (2), uncorrected p = 0.007] and IL-1α −889C/T [χ2 (df) = 8.76 (2), uncorrected p = 0.013] genotype frequencies between impulsive and planned suicide attempts trended toward being different (not significant after Bonferroni correction). Suicide attempts were more often impulsive in the presence of −1438G/G or IL-1α −889C/T or C/C genotypes. There was interaction between the polymorphism 5-HTTLPR and age [LRT (df) = 6.84 (2), p = 0.033] and between the polymorphisms APOE and IL-1RA (86 bp)n [LRT (df) = 12.21 (4), p = 0.016] in relation to suicide attempt lethality.Conclusion
These findings further evidence the complexity of the association between genetics and suicidal behavior, the need to study homogenous forms of the behavior and the relevance of impulsive and aggressive traits as endophenotypes for suicidal behavior. 相似文献19.
Ernest K. Amankwah Christie M. Atchison Shilpa Arlikar Irmel Ayala Laurie Barrett Brian R. Branchford Michael Streiff Clifford Takemoto Neil A. Goldenberg 《Thrombosis research》2014
Objective
To determine hospital-associated venous thromboembolism (HA-VTE) risk factors in critically ill neonates.Methods
We conducted a case-control study in the neonatal intensive care unit (NICU) of All Children’s Hospital Johns Hopkins Medicine (St. Petersburg, FL), from January 1, 2006 - April 10, 2013. We identified HA-VTE cases using electronic health record. Four NICU controls were randomly selected for each HA-VTE case. Associations between putative risk factors and HA-VTE were estimated using odds ratios (ORs) and ninety-five percent confidence intervals (95%CIs) from univariate and multivariate regression analyses.Results
Twenty-three HA-VTE cases and 92 controls were included. The annual HA-VTE incidence was approximately 1.4 HA-VTE cases per 1,000 NICU admissions. In univariate analyses, mechanical ventilation (OR = 7.27, 95%CI = 2.02-26.17, P = 0.002), central venous catheter (CVC; OR = 52.95, 95%CI = 6.80-412.71, P < 0.001), infection (OR = 7.24, 95%CI = 2.66-19.72, P < 0.001), major surgery (OR = 5.60, 95%CI = 1.82-17.22, P = 0.003) and length of stay ≥ 15 days (OR = 6.67, 95%CI = 1.85-23.99, P = 0.004) were associated with HA-VTE. Only CVC (OR = 29.04, 95%CI = 3.18-265.26, P = 0.003) remained an independent risk factor in the multivariate analysis. Based on this result, the estimated risk of HA-VTE in NICU patients with a CVC was 0.9%.Conclusion
This study identifies CVC as an independent risk factor for HA-VTE in critically ill neonates. However, the level of risk associated with CVC is below the conventional threshold for primary anticoagulation thromboprophylaxis. Larger studies are needed to substantiate these findings and identify novel putative risk factors to further distinguish NICU patients at highest HA-VTE risk. 相似文献20.
Liliana O. Gouveia 《Thrombosis research》2010,125(4):e153