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Guan C, Zhao F, Yang Z, Tang Q, Wang L, Li X, Zhang L, Deng Z, Hou H, Wang J, Xu Y, Zhang R, Lin Y, Tan P, Zhang Y, Liu S, Zhang L. A review of key cytokines based on gene polymorphism in the pathogenesis of pre-eclampsia. Am J Reprod Immunol 2021; 87:e13503. [PMID: 34599631 DOI: 10.1111/aji.13503] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 09/26/2021] [Accepted: 09/28/2021] [Indexed: 12/15/2022] Open
Abstract
Although a number of theories have been suggested, including roles for oxidative stress, an abnormal maternal-fetal interface, and genetic and environmental factors, the etiopathology of pre-eclampsia (PE) remains unclear. Maternal immune tolerance is important for maintaining pregnancy, and researchers have increasingly focused on the critical roles of cytokines in the pathogenesis of PE in recent years. The assessment of candidate genetic polymorphisms in PE could partially elucidate the mechanisms of susceptibility to disease, and contribute to seeking for new diagnosis and treatment methods of PE. PE can lead to severe complications, and even the death of both mother and fetus. Although the complex pathology is not yet clear, some evidence suggested that the occurrence of PE is related to inflammatory factors. We reviewed the current understandings of roles of cytokines in PE, and provided an extensive overview of the role of single nucleotide chain polymorphisms (SNPs) in the genes potentially underlying the pathophysiology of PE.
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Affiliation(s)
- Chengcheng Guan
- Medical genetic department, The Affiliated Hospital of Qingdao University, Qingdao, China.,Prenatal Diagnosis Center, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Fei Zhao
- Department of gynecology and obstetrics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Zhencui Yang
- Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Qian Tang
- Medical genetic department, The Affiliated Hospital of Qingdao University, Qingdao, China.,Prenatal Diagnosis Center, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Ling Wang
- Medical genetic department, The Affiliated Hospital of Qingdao University, Qingdao, China.,Prenatal Diagnosis Center, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Xueli Li
- Medical genetic department, The Affiliated Hospital of Qingdao University, Qingdao, China.,Prenatal Diagnosis Center, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Lixia Zhang
- Medical genetic department, The Affiliated Hospital of Qingdao University, Qingdao, China.,Prenatal Diagnosis Center, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Ziwen Deng
- Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Huabin Hou
- Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Jingli Wang
- Medical genetic department, The Affiliated Hospital of Qingdao University, Qingdao, China.,Prenatal Diagnosis Center, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yinglei Xu
- Medical genetic department, The Affiliated Hospital of Qingdao University, Qingdao, China.,Prenatal Diagnosis Center, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Ru Zhang
- Medical genetic department, The Affiliated Hospital of Qingdao University, Qingdao, China.,Prenatal Diagnosis Center, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yan Lin
- Medical genetic department, The Affiliated Hospital of Qingdao University, Qingdao, China.,Prenatal Diagnosis Center, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Ping Tan
- Department of gynecology and obstetrics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yan Zhang
- Department of gynecology and obstetrics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Shiguo Liu
- Medical genetic department, The Affiliated Hospital of Qingdao University, Qingdao, China.,Prenatal Diagnosis Center, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Lu Zhang
- Medical genetic department, The Affiliated Hospital of Qingdao University, Qingdao, China.,Prenatal Diagnosis Center, The Affiliated Hospital of Qingdao University, Qingdao, China
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Kamdee K, Panadsako N, Mueangson O, Nuinoon M, Janwan P, Poonsawat W, Pongpanitanont P, Kitkumthorn N, Thongsroy J, Chunglok W. Promoter polymorphism of TNF-α (rs1800629) is associated with ischemic stroke susceptibility in a southern Thai population. Biomed Rep 2021; 15:78. [PMID: 34405050 PMCID: PMC8329996 DOI: 10.3892/br.2021.1454] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Accepted: 06/29/2021] [Indexed: 01/19/2023] Open
Abstract
Stroke represents the leading cause of disability and mortality amongst the elderly worldwide. Multiple risk factors, including both genetic and non-genetic components, as well as their interactions, are proposed as etiological factors involved in the development of ischemic stroke (IS). Promoter polymorphisms of the IL-6-174G/C (rs1800795) and TNF-α-308G/A (rs1800629) genes have been considered as predictive risk factors of IS; however, these have not yet been evaluated in a Thai population. The aims of this study were to investigate the association of IL-6-174G/C and TNF-α-308G/A polymorphisms with IS. Genomic DNA from 200 patients with IS and 200 controls were genotyped for IL-6-174G/C and TNF-α-308G/A polymorphisms using TaqMan™ SNP genotyping and quantitative PCR-high resolution melting analysis, respectively. It was found that the TNF-α-308 A allele was significantly associated with an increased risk of IS development compared with the G allele [odds ratio (OR)=2.044; 95% CI=1.154-3.620; P=0.014]. Moreover, the IS risk was significantly higher in the presence of TNF-α-308 GA or AA genotypes compared with that in the presence of GG genotypes with a dominant inheritance (OR=1.971; 95% CI=1.080-3.599; P=0.027). However, there was no association between IL-6-174G/C and the risk of IS development. The interaction study demonstrated that IL-6-174 GG and TNF-α-308 GG genotypes enhanced IS susceptibility when combined with hypertension, hyperlipidemia and alcohol consumption. Hypertensive and hyperlipidemic subjects with the TNF-α-308 GA and AA genotypes were more likely to develop IS compared with those who did not have these two conditions and had the GG genotype. In a matched study design (1:1), the IL-6-174 GC genotype was associated with higher IL-6 levels in the control group. Collectively, the present results highlight the utility of the TNF-α-308G/A polymorphism as a predictive genetic risk factor for development of IS.
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Affiliation(s)
- Kornyok Kamdee
- School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat 80160, Thailand
| | - Nitirat Panadsako
- School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat 80160, Thailand
| | - Onchuma Mueangson
- School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat 80160, Thailand
| | - Manit Nuinoon
- School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat 80160, Thailand
| | - Penchom Janwan
- School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat 80160, Thailand
| | - Wasinee Poonsawat
- Research Institute for Health Sciences, Walailak University, Nakhon Si Thammarat 80160, Thailand
| | | | - Nakarin Kitkumthorn
- Department of Oral Biology, Faculty of Dentistry, Mahidol University, Bangkok 10400, Thailand
| | - Jirapan Thongsroy
- School of Medicine, Walailak University, Nakhon Si Thammarat 80160, Thailand
| | - Warangkana Chunglok
- School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat 80160, Thailand.,Food Technology and Innovation Research Center of Excellence, Institute of Research and Innovation, Walailak University, Nakhon Si Thammarat 80160, Thailand
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Lim SY, Chan YM, Ramachandran V, Shariff ZM, Chin YS, Arumugam M. Dietary Acid Load and Its Interaction with IGF1 (rs35767 and rs7136446) and IL6 (rs1800796) Polymorphisms on Metabolic Traits among Postmenopausal Women. Nutrients 2021; 13:nu13072161. [PMID: 34201855 PMCID: PMC8308464 DOI: 10.3390/nu13072161] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 02/25/2021] [Accepted: 02/27/2021] [Indexed: 02/07/2023] Open
Abstract
The objective of this study was to explore the effects of dietary acid load (DAL) and IGF1 and IL6 gene polymorphisms and their potential diet–gene interactions on metabolic traits. A total of 211 community-dwelling postmenopausal women were recruited. DAL was estimated using potential renal acid load (PRAL). Blood was drawn for biochemical parameters and DNA was extracted and Agena® MassARRAY was used for genotyping analysis to identify the signalling of IGF1 (rs35767 and rs7136446) and IL6 (rs1800796) polymorphisms. Interactions between diet and genetic polymorphisms were assessed using regression analysis. The result showed that DAL was positively associated with fasting blood glucose (FBG) (β = 0.147, p < 0.05) and there was significant interaction effect between DAL and IL6 with systolic blood pressure (SBP) (β = 0.19, p = 0.041). In conclusion, these findings did not support the interaction effects between DAL and IGF1 and IL6 single nucleotide polymorphisms (rs35767, rs7136446, and rs1800796) on metabolic traits, except for SBP. Besides, higher DAL was associated with higher FBG, allowing us to postulate that high DAL is a potential risk factor for diabetes.
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Affiliation(s)
- Sook Yee Lim
- Department of Dietetics, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia (UPM), Serdang 43400, Malaysia;
| | - Yoke Mun Chan
- Department of Dietetics, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia (UPM), Serdang 43400, Malaysia;
- Research Center of Excellence Nutrition and Non-Communicable Diseases, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia (UPM), Serdang 43400, Malaysia;
- Malaysian Research Institute on Ageing, Universiti Putra Malaysia, Serdang 43400, Malaysia
- Correspondence: (Y.M.C.); (V.R.)
| | - Vasudevan Ramachandran
- Malaysian Research Institute on Ageing, Universiti Putra Malaysia, Serdang 43400, Malaysia
- Centre for Research, Bharath Institute of Higher Education and Research, 173, Agaram Main Rd, Selaiyur, Chennai, Tamil Nadu 600073, India
- Correspondence: (Y.M.C.); (V.R.)
| | - Zalilah Mohd Shariff
- Department of Nutrition, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia (UPM), Serdang 43400, Malaysia;
| | - Yit Siew Chin
- Research Center of Excellence Nutrition and Non-Communicable Diseases, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia (UPM), Serdang 43400, Malaysia;
- Department of Nutrition, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia (UPM), Serdang 43400, Malaysia;
| | - Manohar Arumugam
- Department of Orthopedics, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia (UPM), Serdang 43400, Malaysia;
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The Association of IL-6, TNFα and CRP Gene Polymorphisms with Coronary Artery Disease in a Tunisian Population: A Case-Control study. Biochem Genet 2021; 59:751-766. [PMID: 33527329 DOI: 10.1007/s10528-021-10035-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Accepted: 01/12/2021] [Indexed: 10/22/2022]
Abstract
Coronary artery disease is an inflammatory disease. Systemic markers of inflammation such as Interleukin-6, Tumor Necrosis Factor alpha and C-reactive protein have previously been shown to be associated with increased risk of cardiovascular events. The aim of the present study is to assess the role of variants in the IL-6 (- 174 G/C), TNFα (- 308 A/G) and CRP (+ 1059G/C) genes as susceptibility markers for CAD in a Tunisian population. The investigation was conducted as a case-control study involving 204 patients and 400 age-gender matched controls. Genotyping was performed using polymerase chain reaction and restriction fragment length polymorphism analysis. There are significant differences between CAD patients and the control group with regard to BMI (p < 10-3) and family history of CAD (p < 10-3). The CAD patients are more likely to have a history of smoking (p < 10-3), have a higher value of TC (p = 0.003), LDLc (p = 0.016), hs-CRP (p = 0.01), IL6 (p < 10-3) and TNFα (p = 0.038). Our analysis showed significant differences between cases and controls in genotypic distribution of IL6-174CC (p = 0.003; OR = 7.71 CI (1.58-37.56)), TNFα - 308 AA (p = 0.004; OR = 2.95 (1.57-5.51)) and CRP + 1059 CC (p < 10-3; OR = 5.40 (2.30-12.68)). However, we failed to find an association between the different genotypes and the inflammatory markers levels. Our results suggest that the presence of IL-6 (- 174 G/C), TNFα (-308 A/G) and CRP (+ 1059G/C) polymorphisms, may be considered to be a risk factor for CAD in Tunisian population.
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Gąsiorek P, Banach M, Sakowicz A, Głąbiński A, Sosnowska B, Maciejewski M, Bielecka-Dabrowa A. The potential role of inflammation in cryptogenic stroke. Adv Med Sci 2019; 64:381-387. [PMID: 31260841 DOI: 10.1016/j.advms.2019.06.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 04/11/2019] [Accepted: 06/18/2019] [Indexed: 12/21/2022]
Abstract
PURPOSE The study aimed to identify biomarkers predictive of cryptogenic stroke in patients aged <65. MATERIALS AND METHODS We investigated 520 patients with ischemic stroke. Out of them we assigned 65 patients to the cryptogenic stroke group (age 54 (47-58), 42% male) and 36 without stroke to the control group (age 53 (47-58), 61% male). In all patients we assessed carotid intima-media thickness (cIMT) and the levels of biomarkers which might be involved in the underlying biological mechanism of ischemic stroke. RESULTS There were no differences between stroke and control groups in the levels of syndecan 4, resistin, leptin, low-density lipoprotein cholesterol, triglycerides, prothrombin time, or activated partial thromboplastin time. There was no statistically significant difference in cIMT between groups. The level of high-density lipoprotein cholesterol was statistically significantly lower in the cryptogenic stroke group than in the controls (1.1 mmol/L (0.95-1.46) vs 1.37 (1.19-1.6) p = 0.02). Patients in the stroke group had higher levels of N-terminal pro-brain natriuretic peptide (NT-proBNP) (391 pg/ml (107-1249) vs 109 (46-236); p = 0.003), interleukin 6 (2.6 pg/ml (0.8-8.1) vs 0.7 (0.4-1.2) p = 0.002) and asymmetric dimethylarginine (ADMA) (0.44 μmol/L (0.39-0.55) vs 0.36 (0.32-0.4); p = 0.0002) than the control group. In the multivariate analysis Il-6 was the only biomarker statistically significant associated with the occurrence of cryptogenic stroke (odds ratio 1.918, 95% confidence interval 1.029-3.575; p = 0.04). CONCLUSIONS Endothelial dysfunction assessed by increased level of ADMA affects the inflammatory state in patients with cryptogenic stroke. Increase in the inflammatory cytokine IL-6 by 1 pg/ml almost doubles the risk of stroke.
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Chen M, Yang Y. A meta-analysis on associations of IL-6 and IL-10 polymorphisms with susceptibility to ischemic stroke. J Neuroimmunol 2019; 335:577004. [PMID: 31446341 DOI: 10.1016/j.jneuroim.2019.577004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 06/27/2019] [Accepted: 07/06/2019] [Indexed: 01/11/2023]
Abstract
BACKGROUND Some previous studies already explored associations of interleukin-6 (IL-6) and interleukin-10 (IL-10) polymorphisms with ischemic stroke (IS). However, the results were conflicting. In this meta-analysis, we aimed to better analyze the relationship between IL-6/IL-10 polymorphisms and IS in a larger pooled population. METHODS We performed a systematic search of PubMed, Web of Science, Embase and CNKI. We calculated pooled odds ratios (ORs) and 95% confidence intervals (CIs) to estimate associations between IL-6/IL-10 polymorphisms and IS. RESULTS Totally 37 studies were included for analyses. A significant association with IS was observed for IL-10 rs1800896 polymorphism in AA versus GG + GA (recessive model, p = .001, OR = 1.42, 95%CI 1.15-1.75) in overall population. Further subgroup analyses showed that IL-6 rs1800795 was significantly associated with IS in Asians in GG versus GC + CC (dominant model, p = .0005, OR = 0.74, 95%CI 0.62-0.88), CC versus GG + GC (recessive model, p = .003, OR = 1.61, 95%CI 1.17-2.21) and G versus C (allele model, p = .01, OR = 0.74, 95%CI 0.58-0.93), whereas IL-10 rs1800896 polymorphism was significantly associated with cerebral infarction (CI) in GG versus GA + AA (dominant model, p = .02, OR = 2.04, 95%CI 1.14-3.64), GA versus GG + AA (overdominant model, p = .03, OR = 0.50, 95%CI 0.27-0.93) and G versus A (allele model, p = .01, OR = 1.92, 95%CI 1.16-3.17). CONCLUSIONS Our findings indicated that IL-6 rs1800795 polymorphism was significantly associated with individual susceptibility to IS in Asians, but not in Caucasians. In addition, IL-10 rs1800896 polymorphism was also significantly associated with individual susceptibility to IS, especially for CI.
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Affiliation(s)
- Miao Chen
- Department of Neurology, Zhuji People's Hospital of Zhejiang Province, Zhuji 311800, China
| | - Yue Yang
- Department of Neurology, Zhuji People's Hospital of Zhejiang Province, Zhuji 311800, China.
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Akhter MS, Biswas A, Abdullah SM, Hobani Y, Ranjan R, Behari M, Saxena R. Influence of Interleukin-6 (IL-6) Promoter Gene Polymorphisms (-174G>C, -572G>C, and -597G>A) on IL-6 Plasma Levels and Their Impact in the Development of Acute Ischemic Stroke in Young Indians. Clin Appl Thromb Hemost 2019; 25:1076029619854136. [PMID: 31215220 PMCID: PMC6714995 DOI: 10.1177/1076029619854136] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
This study aimed to determine whether there is an influence of interleukin 6 (IL-6) gene promoter polymorphisms on IL-6 plasma levels and its role in the development of ischemic stroke in young Indians. One hundred young patients with ischemic stroke (age ≥ 45 years) and equal number of age- and sex-matched controls were genotyped for 174G>C, −572G>C, and −597G>A promoter polymorphisms by polymerase chain reaction–restriction fragment length polymorphism. Plasma IL-6 levels were measured by enzyme-linked immunosorbent assay. Plasma IL-6 levels were significantly higher in patients as compared to controls (patients: 28.61 ± 8.61 pg/mL, controls: 7.60 ± 4.10 pg/mL, P = .001). Both −174G>C (allelic χ2/P value: 4.79/.028, genotypic χ2/P value: 5.3/.021) and −572G>C (allelic χ2/P value: 9.63/.00113 Genotypic χ2/P value: 74/.0002) polymorphisms exhibited genotypic as well as allelic significant association with the disease phenotype. Comparison was made between patients and controls for all 3 polymorphisms using a recessive model with respect to plasma IL-6 levels; no polymorphism showed any significant correlative association with the increased IL-6 levels (P = .31, .51, .32). Interleukin 6 is an inflammatory marker that is considerably influenced by nongenetic factors and is not a good candidate gene for studying genetic components associated with ischemic stroke. It seems that the variability in IL-6 levels is an integrated effect of nongenetic influences and the inflammatory events that follow ischemic stroke instead of being its cause. It is suggested that there is no direct association between −174G>C, −572G>C, and −597G>A polymorphisms and elevated IL-6 levels in the development of ischemic stroke.
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Affiliation(s)
- Mohammad Suhail Akhter
- 1 Department of Hematology, All India Institute of Medical Sciences (AIIMS), New Delhi, India.,2 Applied Medical Sciences, Jazan University, Jazan University, Jazan, Saudi Arabia
| | - Arijit Biswas
- 3 Institute of Experimental Hematology and Transfusion Medicine, Sigmund Freud, Germany
| | | | - Yahya Hobani
- 2 Applied Medical Sciences, Jazan University, Jazan University, Jazan, Saudi Arabia
| | - Ravi Ranjan
- 1 Department of Hematology, All India Institute of Medical Sciences (AIIMS), New Delhi, India
| | - Madhuri Behari
- 1 Department of Hematology, All India Institute of Medical Sciences (AIIMS), New Delhi, India
| | - Renu Saxena
- 1 Department of Hematology, All India Institute of Medical Sciences (AIIMS), New Delhi, India
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Jenny NS, Callas PW, Judd SE, McClure LA, Kissela B, Zakai NA, Cushman M. Inflammatory cytokines and ischemic stroke risk: The REGARDS cohort. Neurology 2019; 92:e2375-e2384. [PMID: 31004072 DOI: 10.1212/wnl.0000000000007416] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 01/17/2019] [Indexed: 01/11/2023] Open
Abstract
OBJECTIVE We studied circulating interleukin (IL)-6, IL-8, and IL-10 concentrations and incident ischemic stroke risk in a biracial cohort, and determined if these cytokines mediated the racial disparity in stroke incidence affecting the black population. METHODS The Reasons for Geographic and Racial Differences in Stroke study enrolled 30,237 black and white men and women age ≥45 in 2003-2007. We measured baseline IL-6, IL-8, and IL-10 in a case-cohort study of 557 participants with incident stroke over 5.4 years and 951 participants in a cohort sample. RESULTS IL-6, but not IL-8 or IL-10, was higher in cases compared to the cohort sample (mean 4.5 vs 3.7 ng/mL; p < 0.001). Only IL-6 was associated with stroke risk factors. Adjusting for age, sex, and race, the hazard ratio (HR; 95% confidence interval) for incident stroke for the highest vs lowest quartile of IL-6 was 2.4 (1.6-3.4). HRs for the highest vs lowest quartiles of IL-8 and IL-10 were 1.5 (1.0-2.1) and 1.4 (1.0-1.9), respectively. After additional adjustment for stroke risk factors, only higher IL-6 remained associated with stroke risk (HR 2.0; 1.2-3.1). Associations did not differ by race. Mediation analyses showed that IL-6 mediated the black-white disparity in stroke risk, but mediation was via IL-6 associations with stroke risk factors. CONCLUSIONS In this biracial population-based sample, IL-6 was strongly associated with risk of incident stroke and mediated the racial disparity in stroke via inflammatory effects of risk factors. Further study on the clinical utility of IL-6 measurement in stroke risk assessment would be helpful.
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Affiliation(s)
- Nancy Swords Jenny
- From the Departments of Pathology and Laboratory Medicine (N.S.J., N.A.Z., M.C.) and Medicine (N.A.Z., M.C.), University of Vermont Larner College of Medicine, Burlington; Department of Biometry (P.W.C.), University of Vermont, Burlington; Department of Biostatistics (S.E.J.), University of Alabama at Birmingham; Department of Epidemiology and Biostatistics (L.A.M.), Dornsife School of Public Health, Drexel University, Philadelphia, PA; and Department of Neurology and Rehabilitation Medicine (B.K.), University of Cincinnati College of Medicine, OH
| | - Peter W Callas
- From the Departments of Pathology and Laboratory Medicine (N.S.J., N.A.Z., M.C.) and Medicine (N.A.Z., M.C.), University of Vermont Larner College of Medicine, Burlington; Department of Biometry (P.W.C.), University of Vermont, Burlington; Department of Biostatistics (S.E.J.), University of Alabama at Birmingham; Department of Epidemiology and Biostatistics (L.A.M.), Dornsife School of Public Health, Drexel University, Philadelphia, PA; and Department of Neurology and Rehabilitation Medicine (B.K.), University of Cincinnati College of Medicine, OH
| | - Suzanne E Judd
- From the Departments of Pathology and Laboratory Medicine (N.S.J., N.A.Z., M.C.) and Medicine (N.A.Z., M.C.), University of Vermont Larner College of Medicine, Burlington; Department of Biometry (P.W.C.), University of Vermont, Burlington; Department of Biostatistics (S.E.J.), University of Alabama at Birmingham; Department of Epidemiology and Biostatistics (L.A.M.), Dornsife School of Public Health, Drexel University, Philadelphia, PA; and Department of Neurology and Rehabilitation Medicine (B.K.), University of Cincinnati College of Medicine, OH
| | - Leslie A McClure
- From the Departments of Pathology and Laboratory Medicine (N.S.J., N.A.Z., M.C.) and Medicine (N.A.Z., M.C.), University of Vermont Larner College of Medicine, Burlington; Department of Biometry (P.W.C.), University of Vermont, Burlington; Department of Biostatistics (S.E.J.), University of Alabama at Birmingham; Department of Epidemiology and Biostatistics (L.A.M.), Dornsife School of Public Health, Drexel University, Philadelphia, PA; and Department of Neurology and Rehabilitation Medicine (B.K.), University of Cincinnati College of Medicine, OH
| | - Brett Kissela
- From the Departments of Pathology and Laboratory Medicine (N.S.J., N.A.Z., M.C.) and Medicine (N.A.Z., M.C.), University of Vermont Larner College of Medicine, Burlington; Department of Biometry (P.W.C.), University of Vermont, Burlington; Department of Biostatistics (S.E.J.), University of Alabama at Birmingham; Department of Epidemiology and Biostatistics (L.A.M.), Dornsife School of Public Health, Drexel University, Philadelphia, PA; and Department of Neurology and Rehabilitation Medicine (B.K.), University of Cincinnati College of Medicine, OH
| | - Neil A Zakai
- From the Departments of Pathology and Laboratory Medicine (N.S.J., N.A.Z., M.C.) and Medicine (N.A.Z., M.C.), University of Vermont Larner College of Medicine, Burlington; Department of Biometry (P.W.C.), University of Vermont, Burlington; Department of Biostatistics (S.E.J.), University of Alabama at Birmingham; Department of Epidemiology and Biostatistics (L.A.M.), Dornsife School of Public Health, Drexel University, Philadelphia, PA; and Department of Neurology and Rehabilitation Medicine (B.K.), University of Cincinnati College of Medicine, OH
| | - Mary Cushman
- From the Departments of Pathology and Laboratory Medicine (N.S.J., N.A.Z., M.C.) and Medicine (N.A.Z., M.C.), University of Vermont Larner College of Medicine, Burlington; Department of Biometry (P.W.C.), University of Vermont, Burlington; Department of Biostatistics (S.E.J.), University of Alabama at Birmingham; Department of Epidemiology and Biostatistics (L.A.M.), Dornsife School of Public Health, Drexel University, Philadelphia, PA; and Department of Neurology and Rehabilitation Medicine (B.K.), University of Cincinnati College of Medicine, OH.
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Chen LC, Chen MH, Su TP, Tsai SJ, Bai YM, Li CT, Yang AC, Chang WH, Chen TJ. Atopic diseases/diathesis and subsequent ischemic stroke among patients with bipolar disorder: A nationwide longitudinal study. PLoS One 2018; 13:e0200682. [PMID: 30114239 PMCID: PMC6095510 DOI: 10.1371/journal.pone.0200682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Accepted: 06/07/2018] [Indexed: 11/18/2022] Open
Abstract
INTRODUCTION Previous studies have suggested that both bipolar disorder and atopy are associated with an increased risk of stroke. However, the role of atopic diseases/diathesis in the risk of stroke among patients with bipolar disorder remains unclear. METHODS Using Taiwan's National Health Insurance Research Database, we selected 55,593 patients with bipolar disorder between 2002 and 2008, divided them into patients with atopic diseases/diathesis (n = 21,050) and patients without atopic diseases/diathesis (n = 34,543), and observed them until the end of 2011. Patients who experienced a stroke during the follow-up period were identified. RESULTS Patients with bipolar disorder and atopic diseases/diathesis had an elevated risk of ischemic stroke (hazard ratio [HR]: 1.44, 95% confidence interval [CI]: 1.25-1.59) compared with patients with only bipolar disorder; a dose-dependent relationship was observed between the number of allergic comorbidities and the risk of ischemic stroke (1 atopic disease, HR: 1.30, 95% CI: 1.13-1.49; 2 atopic diseases, HR: 1.59, 95% CI: 1.33-1.91; ≥ 3 atopic diseases, HR: 2.09, 95% CI: 1.50-2.91).The role of atopic diseases in the risk of hemorrhagic stroke among patients with bipolar disorder was nonsignificant (HR: 0.84, 95% CI: 0.64-1.09). CONCLUSIONS Patients with bipolar disorder and atopic diseases/diathesis are more prone to ischemic stroke later in life than are those without atopic diseases/diathesis. Further study is required to investigate the underlying mechanism linking atopy, bipolar disorder, and stroke.
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Affiliation(s)
- Li-Chi Chen
- Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan
- Department of Psychiatry, Cheng Hsin General Hospital, Taipei, Taiwan
| | - Mu-Hong Chen
- Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan
- Division of Psychiatry, School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Tung-Ping Su
- Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan
- Department of Psychiatry, Cheng Hsin General Hospital, Taipei, Taiwan
- Division of Psychiatry, School of Medicine, National Yang-Ming University, Taipei, Taiwan
- * E-mail: (TPS); (SJT)
| | - Shih-Jen Tsai
- Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan
- Division of Psychiatry, School of Medicine, National Yang-Ming University, Taipei, Taiwan
- * E-mail: (TPS); (SJT)
| | - Ya-Mei Bai
- Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan
- Division of Psychiatry, School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Cheng-Ta Li
- Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan
- Division of Psychiatry, School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Albert C. Yang
- Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan
- Department of Psychiatry, Cheng Hsin General Hospital, Taipei, Taiwan
| | - Wen-Han Chang
- Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Tzeng-Ji Chen
- Department of Family Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- Institute of Hospital and Health Care Administration, National Yang-Ming University, Taipei, Taiwan
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Boeta‐Lopez K, Duran J, Elizondo D, Gonzales E, Rentfro A, Schwarzbach AE, Nair S. Association of interleukin-6 polymorphisms with obesity or metabolic traits in young Mexican-Americans. Obes Sci Pract 2018; 4:85-96. [PMID: 29479468 PMCID: PMC5818745 DOI: 10.1002/osp4.138] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Revised: 10/17/2017] [Accepted: 10/25/2017] [Indexed: 01/25/2023] Open
Abstract
Objective The objective of the study is to investigate the association of interleukin-6 (IL6) promoter single-nucleotide polymorphisms rs1800797 (-597 G/A) and rs1800796 (-572 G/C) with obesity or metabolic syndrome in Mexican-Americans. Methods The rs1800797 and rs1800796 single-nucleotide polymorphisms were genotyped in Mexican-Americans (n = 437) from South Texas, and results were correlated with measures of obesity and metabolic syndrome including body mass index, waist circumference, blood pressure, cholesterol, triglycerides, glucose, liver enzymes, plasma IL6 and high-sensitive C-reactive protein (hs-CRP). Results Significant associations were found for the rs1800796 variant with increased waist circumference, insulin resistance, lower IL6 levels and higher hs-CRP levels. The rs1800797 variant showed no associations with metabolic traits but was associated with higher IL6 levels and lower hs-CRP levels. Conclusions Findings in this study support the anti-inflammatory, anti-obesity and glucose homeostatic roles of IL6 in Mexican-American youth.
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Affiliation(s)
- K. Boeta‐Lopez
- Department of Health and Biomedical SciencesThe University of Texas Rio Grande ValleyBrownsvilleTXUSA
| | - J. Duran
- Department of Health and Biomedical SciencesThe University of Texas Rio Grande ValleyBrownsvilleTXUSA
| | - D. Elizondo
- Department of Health and Biomedical SciencesThe University of Texas Rio Grande ValleyBrownsvilleTXUSA
| | - E. Gonzales
- Department of Health and Biomedical SciencesThe University of Texas Rio Grande ValleyBrownsvilleTXUSA
| | - A. Rentfro
- Department of Health and Biomedical SciencesThe University of Texas Rio Grande ValleyBrownsvilleTXUSA
| | - A. E. Schwarzbach
- Department of Health and Biomedical SciencesThe University of Texas Rio Grande ValleyBrownsvilleTXUSA
| | - S. Nair
- Department of Health and Biomedical SciencesThe University of Texas Rio Grande ValleyBrownsvilleTXUSA
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The relationship of Interleukin-6 -174 G>C gene polymorphism in type 2 diabetic patients with and without diabetic foot ulcers in Turkish population. Foot (Edinb) 2017; 30:27-31. [PMID: 28257947 DOI: 10.1016/j.foot.2017.02.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2016] [Revised: 01/04/2017] [Accepted: 02/07/2017] [Indexed: 02/04/2023]
Abstract
OBJECTIVE We aims investigate Turkish type 2 diabetic patients with/without diabetic foot ulcers and healthy group and examined the contribution of Interleukin (IL)-6 -174 G>C gene polymorphism to the development of diabetic foot ulcers. DESIGN AND PATIENTS The Interleukin (IL)-6 -174 G>C genotypes were determined prospectively in 50 patients with diabetic foot ulcers and 35 without diabetic foot ulcers and a control group of 119 healthy individuals. Genotyping of the Interleukin (IL)-6 -174 G>C gene polymorphisms for all individuals was performed by PCR-RFLP method. RESULTS The genotype IL6 distribution did differ between the control group (CC 13.3%, GC 66.7%, GG 20%) and type 2 diabetic patients (CC 2.4%, GC 47.1%, GG 50.6%) (P<0.001). The genotype IL6 distribution did not differ between type 2 diabetic patients group (CC 0%, GC 45.7%, GG 54.3%) and diabetic foot ulcers (CC 4%, GC 48%, 48%) (P>0.05). The frequency of the polymorphic G allele in between the control group and type 2 diabetic patients was no similar for the groups (58.4% and 74.1%, respectively) (p<0.05). The frequency of the polymorphic G allele in between the type 2 diabetic patients and diabetic foot ulcers was similar for the groups (77.1% and 72%, respectively) (p>0.05). CONCLUSION The gene polymorphism of Interleukin-6 -174 G>C and G allele are an risk factor for diabetes, but gene polymorphism of Interleukin-6 -174 G>C is not an independent risk factor for diabetic foot. Genetic factors in the pathogenesis of diabetic foot may also show any changes in different populations.
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Wang J, Fan N, Deng Y, Zhu J, Mei J, Chen Y, Yang H. Association between genetic polymorphisms of interleukins and cerebral infarction risk: a meta-analysis. Biosci Rep 2016; 36:e00404. [PMID: 27679860 PMCID: PMC5293575 DOI: 10.1042/bsr20160226] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 09/05/2016] [Accepted: 09/27/2016] [Indexed: 12/19/2022] Open
Abstract
Interleukins (ILs) are the most typical inflammatory and immunoregulatory cytokines. Evidences have shown that polymorphisms in ILs are associated with cerebral infarction risk. However, the results remain inconclusive. The present study was to evaluate the role of ILs polymorphisms in cerebral infarction susceptibility. Relevant case-control studies published between January 2000 and December 2015 were searched and retrieved from the electronic databases of Web of Science, PubMed, Embase and the Chinese Biomedical Database. The odds ratio (OR) with its 95% confidence interval (CI) were employed to calculate the strength of association. A total of 55 articles including 12619 cerebral infarction patients and 14436 controls were screened out. Four ILs (IL-1, IL-6, IL-10 and IL-18) contained nine single nucleotide polymorphisms (SNPs; IL-1α -899C/T, IL-1β -511C/T and IL-1β +3953C/T; IL-6 -174G/C and -572C/G; IL-10 -819C/T and -1082A/G; IL-18 -607C/A and -137G/C). Our result showed that IL-1α -899C/T and IL-18 -607C/A (under all the genetic models), and IL-6 -572C/G (under the allelic model, heterogeneity model and dominant model) were associated with increased the risk of cerebral infarction (P<0.05). Subgroup analysis by ethnicity showed that IL-6 -174G/C polymorphism (under all the five models) and IL-10 -1082A/G polymorphism (under the allelic model and heterologous model) were significantly associated with increased the cerebral infarction risk in Asians. Other genetic polymorphisms were not related with cerebral infarction susceptibility under any genetic models. In conclusion, IL-1α -899C/T, IL-6 -572C/G and IL-18 -607C/A might be risk factors for cerebral infarction development. Further studies with well-designed and large sample size are still required.
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Affiliation(s)
- Jiantao Wang
- Department of Laboratory Medicine, Huaihe Hospital of Henan University, Kaifeng 475000, Henan, China
| | - Niannian Fan
- Department of Laboratory Medicine, Huaihe Hospital of Henan University, Kaifeng 475000, Henan, China
| | - Yili Deng
- Department of Cardiology, Third Affiliated Hospital of Third Military Medical University, Chongqing 400042, China
| | - Jie Zhu
- Department of Neurology, Third Affiliated Hospital of Third Military Medical University, Chongqing 400042, China
| | - Jing Mei
- Department of Neurology, Third Affiliated Hospital of Third Military Medical University, Chongqing 400042, China
| | - Yao Chen
- Chongqing Medical University, Chongqing 400016, China
| | - Heng Yang
- Department of Neurology, Third Affiliated Hospital of Third Military Medical University, Chongqing 400042, China
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Mărginean C, Mărginean CO, Bănescu C, Meliţ L, Tripon F, Iancu M. Impact of demographic, genetic, and bioimpedance factors on gestational weight gain and birth weight in a Romanian population: A cross-sectional study in mothers and their newborns: the Monebo study (STROBE-compliant article). Medicine (Baltimore) 2016; 95:e4098. [PMID: 27399105 PMCID: PMC5058834 DOI: 10.1097/md.0000000000004098] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
The present study had 2 objectives, first, to investigate possible relationships between increased gestational weight gain and demographic, clinical, paraclinical, genetic, and bioimpedance (BIA) characteristics of Romanian mothers, and second, to identify the influence of predictors (maternal and newborns characteristics) on our outcome birth weight (BW).We performed a cross-sectional study on 309 mothers and 309 newborns from Romania, divided into 2 groups: Group I-141 mothers with high gestational weight gain (GWG) and Group II-168 mothers with normal GWG, that is, control group.The groups were evaluated regarding demographic, anthropometric (body mass index [BMI], middle upper arm circumference, tricipital skinfold thickness, weight, height [H]), clinical, paraclinical, genetic (interleukin 6 [IL-6]: IL-6 -174G>C and IL-6 -572C>G gene polymorphisms), and BIA parameters.We noticed that fat mass (FM), muscle mass (MM), bone mass (BM), total body water (TBW), basal metabolism rate (BMR) and metabolic age (P < 0.001), anthropometric parameters (middle upper arm circumference, tricipital skinfold thickness; P < 0.001/P = 0.001) and hypertension (odds ratio = 4.65, 95% confidence interval: 1.27-17.03) were higher in mothers with high GWG. BW was positively correlated with mothers' FM (P < 0.001), TBW (P = 0.001), BMR (P = 0.02), while smoking was negatively correlated with BW (P = 0.04). Variant genotype (GG+GC) of the IL-6 -572C>G polymorphism was higher in the control group (P = 0.042).We observed that high GWG may be an important predictor factor for the afterward BW, being positively correlated with FM, TBW, BMR, metabolic age of the mothers, and negatively with the mother's smoking status. Variant genotype (GG+GC) of the IL-6 -572C>G gene polymorphism is a protector factor against obesity in mothers. All the variables considered explained 14.50% of the outcome variance.
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Affiliation(s)
| | | | - Claudia Bănescu
- Department of Genetics, University of Medicine and Pharmacy, Tîrgu Mureţ
- Correspondence: Claudia Bănescu, Department of Medical Genetics, University of Medicine and Pharmacy Tirgu Mures, 38 Gh Marinescu St, 540139, Tirgu Mures, Romania (e-mail: )
| | | | - Florin Tripon
- Department of Genetics, University of Medicine and Pharmacy, Tîrgu Mureţ
| | - Mihaela Iancu
- Department of Medical Informatics and Biostatistics, University of Medicine and Pharmacy, Cluj Napoca, Romania
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Ren H, Zhang Y, Yao Y, Guo T, Wang H, Mei H, Hu Y. Association between the interleukin-6 genetic polymorphism 174 G/C and thrombosis disorder risk: Meta-analysis of 10,549 cases and 19,316 controls. Medicine (Baltimore) 2016; 95:e4030. [PMID: 27399086 PMCID: PMC5058815 DOI: 10.1097/md.0000000000004030] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Studies investigating the association between interleukin-6 (IL-6) gene-174 G/C polymorphism (rs1800795) and thrombosis disorder risk reported conflicting results. The aim of our study was to assess the association between the IL-6 gene 174 G/C polymorphisms and the risk of thrombosis disorders.Thirty four case-control studies in 29 articles with 29,865 individuals were incorporated in this meta-analysis by searching the public databases including Medline, Embase, and ISI Web of Science databases as of June 1st, 2015. The odds ratio (OR) and 95% confidence interval (95%CI) were used to assess the strength of the association.By pooling all studies, there was marginal association between and the risk of thrombotic disorders (1.09[0.97-1.22]), arterial thrombotic disorders (1.08[0.95-1.23]), and myocardial infarction (MI, 1.14[0.99-1.32]) under dominant genetic effect (C carriers vs GG). In subgroup analyses stratified by ethnicity, study scale, thrombotic category, and country, the results indicated that IL-6 gene-174 G/C polymorphism was significantly associated with increased risk of thrombotic disorders given the conditional such as Asians, large sample-sized, MI, population-based, and Indian studies (C carriers vs GG: 1.39 [1.13-1.72] and C allele vs G allele: 1.36 [1.18-1.56] for Asian; C carriers vs GG: 1.15 [1.01-1.31] and C allele vs G allele: 1.12 [1.01-1.23] for large sample-sized studies; C allele vs G allele: 1.10 [1.03-1.18] for population-based studies; and C carriers vs GG: 1.40 [1.19-1.65] for Indian studies). We did not observe significant association between IL-6-174 G/C and the risk of Caucasians, small sample-sized studies, stroke and venous studies, and other country studies.This meta-analysis suggests that IL-6 gene-174 G/C polymorphism may be marginally associated with risk of thrombotic disorders, arterial disorders, MI especially for Asian, Indian, population-based, and large sample-sized studies. More studies with larger sample size and well-designed studies might be warranted.
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Affiliation(s)
| | - Yue Zhang
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei
| | - Yonghua Yao
- Department of Hematology, Shidong Hospital, Yangpu District, Shanghai, P.R. China
| | - Tao Guo
- Institute of Hematology, Union Hospital
| | | | - Heng Mei
- Institute of Hematology, Union Hospital
| | - Yu Hu
- Institute of Hematology, Union Hospital
- Correspondence: Yu Hu, Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China (e-mail: )
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15
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Atopic Diseases and Subsequent Ischemic Stroke Among Patients With Schizophrenia: A Nationwide Longitudinal Study. Psychosom Med 2015; 77:1031-8. [PMID: 26444387 DOI: 10.1097/psy.0000000000000234] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
BACKGROUND Chronic inflammation plays an important role in schizophrenia and atopic diseases, and studies have suggested that chronic inflammation is associated with an increased risk of stroke. The role of atopic diseases in the development of stroke among patients with schizophrenia is still unknown. METHODS A total of 63,913 patients with schizophrenia without a stroke history between 2002 and 2008 and 63,913 age- and sex-matched controls were included and followed up to the end of 2011. Patients with schizophrenia and the reference group were divided into subgroups based on the presence or absence of atopic diseases. Individuals who developed stroke during follow-up were identified. RESULTS Patients with schizophrenia had an increased risk of developing ischemic stroke (no atopic disease: hazard ratio [HR] = 2.18, 95% confidence interval [CI] = 1.88-2.53; with atopic disease: HR = 3.11, 95% CI = 2.63-3.69) compared with the reference group without atopic diseases. Among patients with schizophrenia, the presence of atopic diseases increased the risk of developing ischemic stroke (HR = 1.44, 95% CI = 1.24-1.66), with a cumulative relationship between greater numbers of atopic comorbidities and a greater risk of ischemic stroke (one atopic disease: HR = 1.39, 95% CI = 1.19-1.63; two atopic comorbidities: HR = 1.48, 95% CI = 1.10-2.00; at least 3 atopic comorbidities: HR = 2.81, 95% CI = 1.55-5.12). CONCLUSIONS The combined presence of schizophrenia and atopic diseases is associated with an increased risk of ischemic stroke in later life compared with individuals without these conditions.
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Kumar P, Yadav AK, Kumar A, Sagar R, Pandit AK, Prasad K. Association between Interleukin-6 (G174C and G572C) promoter gene polymorphisms and risk of ischaemic stroke: A meta-analysis. Ann Neurosci 2015; 22:61-9. [PMID: 26130909 PMCID: PMC4480254 DOI: 10.5214/ans.0972.7531.220203] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2014] [Revised: 01/05/2015] [Accepted: 02/11/2015] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND Interleukin-6 (IL-6), as one of the most typical pro-inflammatory and immunoregulatory cytokines, is believed to be associated with the genesis and maintenance of inflammatory response. Genetic association studies (GAS) that have investigated the association between Interleukin 6 (G174C and G572C) promoter gene polymorphisms and susceptibility to ischemic stroke (IS) which have produced contradictory and unconvincing results. PURPOSE The aim of this meta-analysis is to provide a relatively comprehensive account of the association of IL-6 (G174C and G572C) polymorphisms with susceptibility to IS. METHODS A literature search was conducted using electronic database PubMed, Medline, and Trip database for all case-control studies investigating for association of IL-6 genetic polymorphisms with ischemic stroke published till August 30, 2014. The following combinations of main keywords were used: ('Interleukin-6' or 'IL-6') and ('ischaemic stroke or 'cerebral infarction' or 'IS') and ('genetic polymorphism' or 'single nucleotide polymorphisms' or 'SNP'). Pooled Odds ratios (ORs) and 95% confidence intervals (CIs) were determined for IL-6 gene-disease association. Meta-analysis was carried out using Revman 5.3 software. RESULTS 16 case-control studies involving a total of 3,317 IS patients and 3,432 healthy controls for G174C polymorphism and 3 case-control studies with a total of 2,001 IS patients and 2,027 healthy controls for G572C IL-6 gene polymorphisms were included in a meta-analysis. For IL-6 G174C gene polymorphisms, no significant association was observed under dominant [GC + CC vs. GG: OR = 1.01, 95% CI: 0.77-1.34, P = 0. 92], recessive [CC vs. GG + GC: OR = 0.82, 95% CI: 0.40-1.70, P = 0. 59] and allelic model [C vs. G Allele: OR = 0.99, 95% CI: 0.74-1.31, P = 0. 93]. For IL-6 G572C, no significant association was observed under dominant [CC vs. GG + GC: OR = 0.99, 95% CI: 0.57-1.71, P = 0. 97], recessive [CC vs. GG + GC: OR = 0.93, 95% CI: 0.60-1.45, P = 0. 75] and allelic model [C vs. G Allele: OR = 0.95, 95% CI: 0.66-1.36, P = 0. 76]. CONCLUSION This meta-analysis shows that IL-6 (G174C) and IL-6 (G572C) gene polymorphisms may not be associated with an increased susceptibility to IS. Further studies are required for confirmatory results.
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Affiliation(s)
- Pradeep Kumar
- Department of Neurology, All India Institute of Medical Sciences, New Delhi, INDIA
| | - Arun K Yadav
- Department of Neurology, All India Institute of Medical Sciences, New Delhi, INDIA
| | - Amit Kumar
- Department of Neurology, All India Institute of Medical Sciences, New Delhi, INDIA
| | - Ram Sagar
- Department of Neurology, All India Institute of Medical Sciences, New Delhi, INDIA
| | - Awadh K Pandit
- Department of Neurology, All India Institute of Medical Sciences, New Delhi, INDIA
| | - Kameshwar Prasad
- Department of Neurology, All India Institute of Medical Sciences, New Delhi, INDIA
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Bazina A, Sertić J, Mišmaš A, Lovrić T, Poljaković Z, Miličić D. PPARγ and IL-6 - 174G>C gene variants in Croatian patients with ischemic stroke. Gene 2015; 560:200-4. [PMID: 25659766 DOI: 10.1016/j.gene.2015.02.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2015] [Revised: 01/24/2015] [Accepted: 02/03/2015] [Indexed: 10/24/2022]
Abstract
AIM Etiology of ischemic stroke (IS) is multifactorial and includes interaction of genetic and environmental factors. Different genes, their polymorphisms, host susceptibility, and inflammation processes play a role in IS development. The aim of this study was to evaluate the effect of PPAR-γ and IL-6 gene variants on IS onset. MATERIAL AND METHODS A total of 301 subjects (144 males, 157 females) participated in the study, 114 patients with IS and 187 healthy controls. RESULTS Statistically significant predictors of IS were male gender (OR 7.13, 95% CI 2.92-17.39, p<0.001), hypertension (OR 7.82. 95% CI 2.53-24.19, p<0.001), lowered HDL cholesterol (OR 8.20, 95% CI 2.41-27.94, p=0.001), elevated C-reactive protein (OR 5.26, 95% CI 1.92-14.41) and IL-6 -174 GC (OR 2.44 95% CI 1.01-5.91, p=0.0048) genotype. Males, compared to females, had 7 times higher odds for stroke. IL6 -174G/C genotype increased the odds for IS for 2.4 times. PPARγ was not statistically significantly associated with stroke. CONCLUSION We can point to the IL-6 -174G>C polymorphisms as candidate gene marker and risk factor for the prediction of ischemic stroke.
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Affiliation(s)
- A Bazina
- University Hospital Centre Zagreb, Department of Neurology, Neurological Intensive Care Unit, Zagreb, Croatia.
| | - J Sertić
- University of Zagreb School of Medicine, Zagreb, Croatia; University Hospital Centre Zagreb, Department of Laboratory Diagnosis, Clinical Unit of Molecular Diagnosis, Zagreb, Croatia.
| | - A Mišmaš
- University Hospital Centre Zagreb, Department of Neurology, Neurological Intensive Care Unit, Zagreb, Croatia.
| | - T Lovrić
- University of Zagreb School of Medicine, Zagreb, Croatia.
| | - Z Poljaković
- University Hospital Centre Zagreb, Department of Neurology, Neurological Intensive Care Unit, Zagreb, Croatia; University of Zagreb School of Medicine, Zagreb, Croatia.
| | - D Miličić
- University of Zagreb School of Medicine, Zagreb, Croatia; University Hospital Centre Zagreb, Clinic for Cardiovascular Diseases, Zagreb, Croatia.
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Wang XY, Wang JW, Tang X, Li N, Chen DF, Wu YQ, Qin XY, Li J, Liu K, Fang K, Hu YH. Linkage and association between interleukin-6 gene polymorphisms and ischemic stroke: a family-based study in the northern Chinese Han population. Genet Test Mol Biomarkers 2014; 18:761-6. [PMID: 25325233 DOI: 10.1089/gtmb.2014.0180] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Numerous genetic risk factors of ischemic stroke (IS) have been reported from both candidate gene and genome-wide strategies with inconsistent results. The objective of this study was to confirm the relationship between 10 previously identified single-nucleotide polymorphisms (SNPs) and IS in the Chinese population. METHODS A family-based study was conducted in a rural area of Beijing, with a total of 227 IS families with 622 participants recruited. Both linkage and association analyses were performed, with all the sibling pairs derived from the 227 families analyzed using the sib-pair test of model-free linkage to assess linkage between SNPs and IS, with association analyses including a family-based association test (FBAT) and generalized estimating equations (GEE). RESULTS Nonparametric linkage analysis revealed that the rs1800796 polymorphism in the interleukin-6 (IL-6) gene is significantly linked to the small arterial occlusion (SAO) subtype (p=0.022), while the rs7193343 polymorphism in the ZFHX3 gene is linked to IS (p=0.002) under the dominant model. Significant allelic associations were identified between the G allele of rs1800796 and IS (p=0.042) and the SAO subtype (p=0.025) in the FBAT. The GEE method revealed that the G allele of rs1800796 increased IS risk by 1.55-fold (95% 95% confidence interval [CI]: 1.01, 2.37; p=0.043) and 2.43-fold (95% CI: 1.32, 4.45; p=0.004) in the SAO subtype in the dominant model, which correlated with the significant associations detected in the FBAT. CONCLUSIONS In this study, we confirmed that the SNP of rs1800796 in the IL-6 gene is related to IS and the SAO subtype using different statistical approaches. These findings could contribute to identifying individuals with a high IS risk.
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Affiliation(s)
- Xue-Yin Wang
- 1 Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center , Beijing, People's Republic of China
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The role of IL-6 572 C/G, 190 C/T, and 174 G/C gene polymorphisms in children's obesity. Eur J Pediatr 2014; 173:1285-96. [PMID: 24740880 DOI: 10.1007/s00431-014-2315-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2014] [Revised: 03/30/2014] [Accepted: 04/02/2014] [Indexed: 02/05/2023]
Abstract
UNLABELLED The aim of this study was to establish the correlations between the polymorphisms of the genes interleukin (IL)-6 572, 190, and 174 in obese children. We assessed 222 hospitalized children divided into two groups: group I (control) included 110 patients with normal nutritional status, and group II consisted of 102 obesity patients. The two groups underwent IL-6 572 C/G, 190 C/T, and 174 G/C polymorphism testing, measurement of anthropometric parameters (mid-upper arm circumference and tricipital skinfold thickness), and paraclinical evaluation (protein, albumin, leptin, adiponectin, and vascular endothelial growth factor (VEGF)). We observed that phenotype CC was more frequent in obese children for IL-6 572 (p = 0.0001), whereas CG heterozygotes were more frequent in the obese group for the IL-6 190 gene (62.7 %; p = 0.0001). Leptin was dependent on IL-6 572 and IL-6 174 gene polymorphisms and albumin, whereas adiponectin was dependent on the IL-6 174 gene polymorphism. Body mass index (BMI), mid-upper arm circumference (MUAC), and tricipital skinfold thickness (TST) serum albumin levels correlated with C allele carriers of the IL-6 572 and IL-6 190 genes in children with obesity, whereas the CC genotype of IL-6 174 was a protective factor for obesity. CONCLUSION Obesity is most frequently associated in children with IL-6 174 C allele carriers and with IL-6 190 C allele carriers.
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