Association between thromboxane A2 receptor polymorphisms and asthma risk: A meta-analysis

Objective: To determine whether there is an association between thromboxane A2 receptor (TBXA2R) gene polymorphisms (+924C/T and +795C/T) and asthma risk by conducting a meta-analysis. Data Sources: Pubmed, Embase, Chinese National Knowledge Infrastructure (CNKI) and Wanfang database were searched (updated May 1, 2015). Study Selections: Articles evaluating the association between TBXA2R gene polymorphisms and asthma risk were selected. Results: A total of 7 studies on +924C/T polymorphism and 6 studies on +795C/T polymorphism were included in this meta-analysis. There was a significant association between TBXA2R +924C/T polymorphism and asthma risk in the recessive model (OR = 1.33, 95% CI = 1.01–1.75, P = 0.045). No significant association between +795C/T polymorphism and asthma risk in the overall population was demonstrated. In subgroup analyzes, significant association was observed in atopic asthma risk in the recessive model (OR = 1.43, 95% CI = 1.01–2.01, P = 0.043), but no significant association was found between TBXA2R +924C/T polymorphism and asthma risk in Asians (OR = 1.14, 95% CI = 0.80–1.63, P = 0.457). TBXA2R +795C/T polymorphism was associated with aspirin-intolerant asthma (AIA) risk when stratified by asthma subphenotype in the allelic model (OR = 1.30, 95% CI = 1.05–1.60, P = 0.014) and dominant model (OR = 1.50, 95% CI = 1.11–2.03, P = 0.008). Conclusion: Our results suggested that TBXA2R +924C/T polymorphism is associated with asthma risk, and +795C/T polymorphism may be a risk factor for AIA. Larger-scale and well-designed studies are required to validate the association identified in the current meta-analysis.     

Interleukin-17 A and F gene polymorphisms affect the risk of tuberculosis: An updated meta-analysis

Background

Cytokines are fundamental elements in mediating and stimulating the immune response against tuberculosis (TB). Growing evidence indicated that polymorphisms in the interleukin-17 (IL-17) A and F genes are implicated in TB.

Interleukin-12B gene polymorphisms and bronchial asthma risk: A meta-analysis

Objective: This meta-analysis aims to investigate whether interleukin-12B (IL-12B) ?1188A/C or the promoter polymorphisms may be a risk factor for asthma. Data Sources: Web of Science, PubMed, China National Knowledge Infrastructure (CNKI) and Wanfang databases were searched (updated August 20, 2015). Study selections: Articles evaluating the association between IL-12B genetic polymorphisms and asthma risk were selected. Results: 13 eligible studies with a total of 5092 subjects were finally included in this meta-analysis. For IL-12B ?1188A/C, analysis by ethnicity indicated that there was a markedly reduced risk for asthma in East Asian (CC + AC vs. AA: OR = 0.64, 95% CI = 0.50–0.81, P < 0.001). For IL-12B promoter, analysis by ethnicity indicated there was a markedly increased risk in East Asian (MM vs. WM + WW: OR = 1.57, 95% CI = 1.18–2.10, P = 0.002). Analysis by allergic state revealed the similar results in atopic subgroup. Conclusions: IL-12B ?1188 C allele may be a protective factor against asthma in East Asian. In addition, promoter MM genotype may be a risk factor for asthma in East Asian and allergic people.     

支气管哮喘患者IL-17基因多态性与激素干预疗效的关系

目的:研究支气管哮喘(哮喘)患者白细胞介素17(IL-17)基因多态性与激素干预疗效的关系。方法:本研究为横断面研究。采用随机抽样方法,选取2018年5月至2020年5月三二〇一医院呼吸与危重症医学科收治的84例哮喘患者作为研究对象。患者均接受激素治疗,记录治疗效果。以TaqMan MGB探针技术对IL-17A和IL-...     

IL-17A and IL-17F genes variants and susceptibility to childhood asthma in Tunisia

Objectives: IL-17A and IL-17F are new pro-inflammatory cytokines implicated in neutrophilic inflammation and thus, involved in the pathogenesis of asthma. We investigated the possible association among asthma and IL-17A -197G/A (rs2275913), IL-17F 7488A/G (rs763780) and IL-17F 7383A/G (rs2397084).

Methods: The study was performed in 171 patients with asthma (mean age 9.5?years, 105 boys, and 66 girls) and 171 healthy individuals matched with patients in age and sex. The polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method was used to detect genes’ polymorphisms.

Results: IL-17A -197G/A and IL-17F 7383A/G were associated with asthma in children (p?=?0.008, p?=?0.001, respectively). No association was found with IL-17F 7488A/G polymorphism. Haplotype analysis revealed a significant association between GA and AG haplotypes and asthma (p?=?0.004, p?=?0.02). When patients were stratified according to the atopic status, no significant association was detected with any of the three studied variants.

Conclusion: Our results suggested that SNPs in IL-17A and IL-17F confer susceptibility to childhood asthma in Tunisia.     

酒精性肝病患者血清IL-17水平及其基因-197A/G位点单核苷酸多态性分析

目的探讨酒精性肝病(ALD)患者血清白细胞介素-17(IL-17)水平及其基因-197A/G位点单核苷酸多态性的变化。方法 2015年10月～2020年10月我院收治的酒精性脂肪肝患者44例、酒精性肝炎患者40例、酒精性肝硬化患者34例和ALD相关性肝癌患者18例,采用ELISA法检测血清IL-17水平,采用单核苷酸检测试剂盒检测外周血IL-17-197A/G位点基因多态性。结果肝癌患者血清IL-17水平为(8.7±1.4)pg/mL,显著高于酒精性脂肪肝、酒精性肝炎和酒精性肝硬化患者【分别为(3.7±0.3)pg/mL、(4.0±0.6)pg/mL和(6.9±0.8)pg/mL,均P<0.05】;肝癌患者血清ALT、AST、GGT和ALB水平分别为(54.3±13.3)U/L、(53.8±13.7)U/L、(262.2±17.9)U/L和(33.9±13.8)g/L,酒精性肝硬化患者分别为(39.8±8.8)U/L、(40.1±7.2)U/L、(251.1±7.9)U/L和(31.1±2.6)g/L,酒精性肝炎患者分别为(84.0±7.5)U/L、(75.4±6.8)U/L、(...     

白介素17细胞因子家族与支气管哮喘

白介素17(IL-17)家族的提出,揭示了又一独特的受、配体信号系统.目前,IL-17A(IL-17)和IL-17F作为该家族的重要成员,其与哮喘的发生发展已经引起人们的关注,然而基于IL-17家族分子特性的支气管哮喘发生机制研究尚缺乏深度和系统性.本文就IL-17与IL-17F细胞因子的分子结构、受体、信号转导途径、功能及其与支气管哮喘关系的研究进展作一简要综述.     

Association of IL-17 polymorphisms with gastric cancer risk in Asian populations

AIM: To investigate associations between the IL-17 rs2275913 GA and rs763780 TC polymorphisms and susceptibility to gastric cancer in Asian populations. METHODS: We reviewed studies published up to 2014 on IL-17 polymorphisms with gastric cancer susceptibility systematically. Relevant articles were identified in the MEDLINE, Science Citation Index, Cochrane Library, Pub Med, EMBASE, CINAHL and Current Contents Index databases. We used version 12.0 STATA statistical software to evaluate the statistical data. Two reviewers abstracted the data independently. Odds ratios(ORs) and 95% confidence intervals(95%CIs) were calculated. RESULTS: Seven independent, case-control studies were chosen for the meta-analysis, which included 3210 gastric cancer patients and 3889 healthy controls. The overall estimation showed a positive association between the IL-17 rs2275913 GA polymorphism and the occurrence of gastric cancer for five genetic models(all P 0.05) and similar results were observed for the IL-17 rs763780 TC variation with four genetic models(all P 0.05), but not for the dominant model(P 0.05). Subgroup analysis by country revealed that the rs2275913 GA and rs763780 TC polymorphisms may be the main risk factor for gastric cancer in Chinese and Japanese populations. CONCLUSION: The IL-17 gene may be significantly correlated with gastric cancer risk in Asian populations, especially those carrying the rs2275913 GA and rs763780 TC polymorphisms.     

Association of IL-10 -819C/T, -592A/C polymorphisms with the risk of preeclampsia: An updated meta-analysis

Objective:The purpose of our study was to investigate whether IL-10 -819C/T, -592A/C polymorphisms were associated with preeclampsia (PE) susceptibility.Methods:A comprehensive and systematic literature search was performed through online databases, including Web of Science, PubMed, EMBASE, and Chinese databases. Then eligible literatures were included according to inclusion criteria and exclusion criteria. Statistical data analysis was performed using Stata 10.0 software. Odds ratios (OR) and 95% confidence interval were applied to evaluated the association between IL-10 -819C/T, -592A/C polymorphisms and PE susceptibility.Results:According to inclusion and exclusion criteria, 9 case-control studies, including 1423 cases and 2031 controls, were included in this meta-analysis. Our meta-analysis revealed that no association was found between IL-10 -819C/T, -592A/C polymorphisms and the risk of PE in our study.Conclusion:Our meta-analysis suggested that IL-10 -819C/T and -592A/C polymorphisms had no association with PE susceptibility, but had a significant association with PE susceptibility in Asian and Caucasian.     

白介素17A及其在支气管哮喘中的作用

白介素17A（interleukin-17A,IL-17A）是近年来发现的一种由Th17等多种细胞产生的细胞因子,可以通过不同途径调节微环境中细胞因子、趋化因子、黏附性分子的表达,募集炎症细胞特别是中性粒细胞而发挥炎症效应,参与炎症性疾病。支气管哮喘（简称哮喘）是由多种炎症因子参与的慢性气道炎症性疾病,不断有证据表明IL-17A参与哮喘的发病过程。本文就IL-17A的来源及其在哮喘特别是中性粒细胞炎症性哮喘的气道炎症、气道高反应性、气道重塑及激素治疗抵抗中发挥的作用及机制加以综述。     

Endothelial nitric oxide synthase gene single nucleotide polymorphisms and the risk of hypertension: A meta-analysis involving 63,258 subjects

The endothelial nitric oxide synthase (eNOS) gene plays an important role in regulating vascular tone and blood pressure. Recently, the eNOS G894T and T-786C single nucleotide polymorphisms (SNPs) were intensively studied with regard to their associations with hypertension. However, the results of these studies were inconsistent. Therefore, we conducted the so far largest meta-analysis to better assess the correlations between eNOS SNPs and hypertension. Eligible articles were searched in PubMed, Medline, Embase, Scopus, and CNKI up to April 2016. Odds ratios (ORs) and 95% confidence intervals (CIs) were used to detect any potential associations between eNOS SNPs and the risk of hypertension. A total of 95 case–control studies involving 29,308 hypertension cases and 33,950 healthy controls were analyzed. The overall meta-analysis results showed that eNOS G894T and T-786C SNPs were both significantly associated with the risk of hypertension, the T allele of G894T SNP (G versus T, P < 0.00001, OR = 0.82, 95% CI 0.76–0.89) and C allele of T-786C SNP (T versus C, P = 0.004, OR = 0.92, 95% CI 0.87–0.97) conferred an increased susceptibility to hypertension. Further subgroup analyses yielded similar positive results for G894T SNP in essential hypertension, gestational hypertension, and Asian ethnicity, and that for T-786C SNP in essential hypertension and Asian population. Overall, our findings suggest that eNOS G894T and T-786C SNPs were both significantly correlated with hypertension. Additionally, the T allele of G894T SNP and C allele of T-786C SNP may serve as potential biological markers for hypertension susceptibility in Asians.     

肺结核患者血清IL-17A和IL-17F检测及临床意义

目的研究肺结核（PTB）患者血清IL-17A和IL-17F含量并分析其临床意义。方法ELISA检测47例PTB患者和26名健康志愿者外周血血清IL-17A和IL-17F含量,并分析其相关性。结果PTB患者血清IL-17A含量显著高于健康志愿者。PTB患者和健康志愿者两组之间血清IL-17F含量无显著性差异。常规化疗药物治疗前PTB患者血清IL-17A含量显著高于治疗后。痰涂结核菌反应阳性PTB患者血清IL-17A和IL-17F含量显著高于阴性PTB患者。PTB患者血清IL-17A含量与患者性别、年龄均无关。血清IL-17F含量与患者治疗情况、患者性别及年龄均无明显相关。Pearson相关性分析显示,血清IL-17A和IL-17F含量之间无显著相关性。结论IL-17A和IL-17F均在抗结核免疫过程中发挥重要作用。     

Expression of IL-23 and IL-17 and effect of IL-23 on IL-17 production in ankylosing spondylitis

The objective of this study was to investigate the expression of IL-23 and IL-17 and the influence of IL-23 on IL-17 production in ankylosing spondylitis (AS) patients. IL-23 and IL-17 levels in the serum and supernatants of cultured peripheral blood mononuclear cells (PBMCs) were determined by ELISA. IL-23p19 mRNA expression in PBMCs were analyzed using RT-PCR. The patients with AS at active stage showed elevated levels of IL-23 and IL-17 in the serum and supernatants of cultured PBMCs. A higher expression of IL-23p19 mRNA in PBMCs of AS patients was also observed. A significantly enhanced production of IL-17 in the supernatants of cultured PBMCs was found in the presence of recombinant IL-23 and this effect was more significant in patients with AS. The results suggest that IL-23 and IL-17 may play critical roles in the pathogenesis of AS and IL-23-stimulated production of IL-17 by PBMCs may be responsible for the development of AS.     

Th17细胞及其细胞因子白细胞介素-17在粉尘螨致敏哮喘小鼠中的变化

目的探讨Th17细胞及其细胞因子白细胞介素-17(IL-17)在粉尘螨致敏哮喘小鼠中的变化及其意义。方法 20只BALB/c小鼠随机均分为哮喘组和健康对照组。哮喘组小鼠于第0、7和14天每鼠腹腔注射200μl致敏液[含粉尘螨粗浸液提取物50μg,Al(OH)32 mg]致敏。末次免疫后1周采用粉尘螨粗浸液提取物连续进行滴鼻激发,每天1次,每次50μg,激发7次,健康对照组给予等体积的PBS[含Al(OH)32 mg]处理。末次激发后24 h内处死小鼠,取血清和肺泡灌洗液,无菌取脾脏。ELISA检测血清中Ig G1、Ig E和肺泡灌洗液中IL-17的含量;流式细胞仪检测脾脏中Th17细胞百分率。结果哮喘组小鼠血清中Ig G1和Ig E水平分别为(0.10±0.01)pg/ml和(1.15±0.10)pg/ml,高于健康对照组的(0.06±0.01)pg/ml和(0.04±0.01)pg/ml(P0.05);哮喘组小鼠肺泡灌洗液IL-17水平(85.13±2.36)pg/ml高于健康对照组(48.27±4.14)pg/ml(P0.01);哮喘组小鼠脾脏Th17细胞百分率(5.19±0.68)%高于健康对照组(0.95±0.19)%(P0.01),且脾脏Th17细胞百分率与肺泡灌洗液中IL-17水平呈正相关(r=0.851,P0.01)。结论粉尘螨致敏哮喘小鼠较健康小鼠肺泡灌洗液IL-17水平和脾脏Th17细胞数量均升高。     

Vitamin D receptor polymorphisms may contribute to asthma risk

Background: Asthma is a common chronic airway disorder associated with significant morbidity and mortality. Objective: Current study aims at investigating the correlation between four vitamin D receptor (VDR) gene polymorphisms and asthma susceptibility by conducting a meta-analysis. Methods: PubMed, EBSCO, Ovid, Wiley, Web of Science, Wanfang, CNKI and VIP databases were searched using combinations of keywords relating to VDR and asthma. The published studies were filtered using our stringent inclusion and exclusion criteria, and the resultant high-quality data from final selected studies were analyzed using Stata 12.0 software. Results: A total of 77 studies were initially retrieved, and after further selection, 9 studies were eligible in current analysis. The selected studies contained 2,116 patients with asthma and 1,884 healthy controls. Our results demonstrated that rs2228570, rs7975232 and rs731236 in both allele models and dominant models, and rs3782905 in allele model in the VDR gene were linked with a high risk of asthma. No significant association between VDR gene rs3782905 in dominant model and risk of asthma was detected. Conclusions: This meta-analysis provides convincing evidence that rs2228570, rs7975232, rs731236 and rs3782905 gene polymorphisms in VDR are associated with increased susceptibility to asthma, indicating VDR polymorphisms could be developed as biomarkers for asthma susceptibility.     

FLG基因单核苷酸多态性与儿童支气管哮喘的相关性研究

目的:探讨丝聚蛋白(FLG)基因单核苷酸多态性(SNPs)与儿童支气管哮喘(哮喘)的发生及相关临床指标的关系。方法:本研究为病例-对照研究。采用非随机抽样方法,选取2019年3月至2021年3月北部战区总医院诊治的101例哮喘患儿为病例组,同期在北部战区总医院体检正常的健康儿童77名为对照组。应用SNaPshot测序技...     

IL-17＋ T淋巴细胞在哮喘发病中的参与及表达

目的用卵白蛋白（OVA）建立小鼠哮喘模型,观察IL-17＋ T淋巴细胞在哮喘发病过程中的参与情况。方法 30只BALB/c雌性SPF级小鼠随机分为正常对照组（n=15）和哮喘模型组（n=15）;分离小鼠肺支气管肺泡灌洗液（BALF）,对BALF中细胞总数和分类计数;分离外周血的淋巴细胞,用流式细胞术检测胞内细胞因子IL-17的表达,从而测定小鼠中IL-17＋ T淋巴细胞的含量。结果哮喘模型组BALF中细胞总数和中性粒细胞、嗜酸性粒细胞、淋巴细胞百分率均高于对照组（P〈0.01）。病理观察可见哮喘模型组小鼠的气道炎症以中性粒细胞及嗜酸性粒细胞浸润为主,而对照组无此变化。哮喘模型组外周血中IL-17＋ T淋巴细胞含量较正常对照组升高（P〈0.01）。结论 IL-17＋ T淋巴细胞参与了哮喘发病过程,在哮喘急性发作的气道炎症中扮有重要作用。