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Rashid PMA, Salih GF. Genetic Polymorphism of Interleukin-6 in Asymptomatic and ICU-Admitted COVID-19 Patients in Sulaymaniyah Province, Kurdistan Region of Iraq. Genet Test Mol Biomarkers 2024; 28:297-303. [PMID: 38721746 DOI: 10.1089/gtmb.2023.0304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/23/2024] Open
Abstract
Background: The global pandemic of Coronavirus Disease 2019 (COVID-19) has resulted in significant fatality rates. Clinical outcomes for affected individuals range from being asymptomatic to severe illnesses requiring intensive care unit (ICU) admission. Among the various factors contributing to the variation in clinical outcomes, host genetics play a prominent role. Interleukin-6 (IL6), a key player in immune responses, has been identified as having a crucial impact on viral infections, including the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Specifically, certain variations known as single nucleotide polymorphisms (SNPs) in the IL6 promoter region have been found to significantly influence IL6 expression and the severity of viral infections. Materials and Methods: To explore the relationship between these genetic variations and COVID-19 in asymptomatic and ICU-admitted Kurdish patients, genetic sequencing was performed to determine the genotypes of nine IL6 SNPs. Results: The study findings revealed that although the proportion of the GG genotype of rs1800795 was slightly higher in asymptomatic COVID-19 cases, the difference was not statistically significant (chi2 = 2.666, p = 0.236). Notably, Kurdish patients displayed a uniform genetic makeup (monomorphic) for the dominant alleles of rs2069830 (C), rs142759801 (C), rs2069857 (C), rs2069829 (G), rs2234683 (G), rs13447446 (T), rs527770772 (C), and rs13447445 (C). Furthermore, patients carrying the haplotype GCGGCTCCC were found to have a 0.481-fold higher likelihood of being asymptomatic with COVID-19 (p = 0.016, OR = 0.481). Conclusions: This study demonstrates that the rs1800795 SNP is not statistically associated with COVID-19 at the genotype level. However, the presence of the dominant G allele of rs1800795 in the haplotype was found to be statistically associated with asymptomatic COVID-19 patients.
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Affiliation(s)
- Peshnyar M A Rashid
- Medical Laboratory Science Department, Komar University of Science and Technology, Sulaymaniyah, Iraq
| | - Gaza F Salih
- Department of Biology, College of Science, University of Sulaimani, Sulaimaniyah, Iraq
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Hernández Requejo D, de Armas Y, Iglesias E, Díaz HM, Gravier R, Godínez López MC, Fonte L, Plascencia-Cruz M, Pacheco-Quijano K, Palomares J, Pérez-Gómez HR, Plascencia-Hernández A, Calderón EJ. Polymorphisms of CCR5, IL-6, IFN-γ and IL-10 genes in Cuban HIV/AIDS patients. Rev Clin Esp 2024; 224:96-104. [PMID: 38253256 DOI: 10.1016/j.rceng.2023.12.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Accepted: 12/26/2023] [Indexed: 01/24/2024]
Abstract
INTRODUCTION Genetic studies have shown associations of several single nucleotide polymorphisms (SNP) with different rates of progression and variation in susceptibility to HIV infection. This study aimed to estimate the frequency of ccr5Δ32, IL-6-174G/C, IFN-γ+874T/A and IL-10-1082A/G polymorphisms in Cuban HIV-infected patients and a group of sero-discordant couples to assess their influence on risk and disease progression. METHODS A cross-sectional study was carried out on 120 subjects registered at the Institute of Tropical Medicine «Pedro Kour» (IPK) and the Ameijeiras Hospital from June 2018 until December 2019. The amplification of fragments of the ccr5, IL-6, IFN-γ and IL-10 genes was performed by polymerase chain reaction followed by identification of polymorphisms using the restriction fragment length polymorphism analysis for IL-6 with the restriction enzymes Nla III. Amplification Refractory Mutation System was used for IFN-γ and IL-10 genes. RESULTS The allelic and genotypic distributions of the genes ccr5, IL-6, IFN-γ and IL-10 did not differ significantly between the two groups. Cell counts and plasma viral load values did not differ significantly between genotypes of the ccr5, IL-6, IFN-γ and IL-10 genes. Only the IL-6 GC genotype was associated with higher viral load values. The combination of alleles of the four considered SNPs showed a highly significant increase in the risk of HIV infection for one of them, but with a very low frequency (<1%). CONCLUSION This study contributes to evaluating the frequency of these polymorphisms and their influence on biomarkers of the progression of HIV infection in the Cuban HIV-population.
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Affiliation(s)
- D Hernández Requejo
- Departamento de Laboratorio Clínico, Centro Hospitalario, Instituto de Medicina Tropical «Pedro Kourí», La Habana, Cuba
| | - Y de Armas
- Departamento de Patología, Centro Hospitalario, Instituto de Medicina Tropical «Pedro Kourí», La Habana, Cuba; Departamento de Diagnóstico Microbiológico Clínico, Centro Hospitalario, Instituto de Medicina Tropical «Pedro Kourí», La Habana, Cuba
| | - E Iglesias
- Centro de Ingeniería Genética y Biotecnología, La Habana, Cuba
| | - H M Díaz
- Hospital Clínico Quirúrgico «Hermanos Ameijeiras», La Habana, Cuba
| | - R Gravier
- Departamento de Farmacología, Instituto de Medicina Tropical «Pedro Kourí», La Habana, Cuba
| | - M C Godínez López
- Departamento de Laboratorio Clínico, Centro Hospitalario, Instituto de Medicina Tropical «Pedro Kourí», La Habana, Cuba
| | - L Fonte
- Departamento de Parasitología, Instituto de Medicina Tropical «Pedro Kourí», La Habana, Cuba
| | - M Plascencia-Cruz
- Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Mexico
| | - K Pacheco-Quijano
- Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Mexico
| | - J Palomares
- Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Mexico
| | - H R Pérez-Gómez
- Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Mexico
| | - A Plascencia-Hernández
- Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Mexico.
| | - E J Calderón
- Instituto de Biomedicina de Sevilla, Hospital Universitario Virgen del Rocío/Consejo Superior de Investigaciones Científicas/Universidad de Sevilla, Sevilla, Spain; Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain; Departamento de Medicina, Facultad de Medicina, Universidad de Sevilla, Sevilla, Spain.
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Sezer O, Nursal AF, Gunal O, Gorgun S, Tekcan A, Unluguzel Ustun G, Yigit S. Evaluating interleukin-6 levels and the rs1800795 variant in Turkish patients with COVID-19: a prospective cohort study. NUCLEOSIDES, NUCLEOTIDES & NUCLEIC ACIDS 2023; 43:377-390. [PMID: 37787093 DOI: 10.1080/15257770.2023.2263490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 09/21/2023] [Indexed: 10/04/2023]
Abstract
BACKGROUND Coronavirus disease 2019 (COVID-19) is a multisystem disease of global significance. Interleukin (IL)-6 is a soluble cytokine with a pleiotropic effect on inflammation and the immune response. OBJECTIVES Investigate the relationship between the interleukin 6 (IL6) rs1800795 variant and IL6 level in Turkish patients with COVID-19 disease. DESIGN Prospective cohort study. SETTING Tertiary care hospital. PATIENTS AND METHODS Real-time polymerase chain reaction (RT-PCR)-positive and/or chest computerized tomography (CT) scan-compatible COVID-19 patients were enrolled in the study. The clinical data and whole blood samples were collected from April 1, 2020, to August 1, 2020. IL6 rs1800795 genotyping was performed by the PCR-restriction fragment-length polymorphism (RFLP) method in 148 patients. Serum IL-6 concentrations were measured using the ELISA method in 89 patients. We evaluated the patients in three groups: asymptomatic, symptomatic, and intensive care unit patients. MAIN OUTCOME MEASURES IL6 rs1800795 genotype frequencies and serum IL-6 levels in COVID-19 patients with different clinical presentations. SAMPLE SIZE 148 cases. RESULTS IL6 rs1800795 GG genotype and G allele frequency increased in PCR positive patients compared to PCR-negative patients (p ˂ 0.000). IL6 rs1800795 GC genotype and C allele frequency were lower in PCR-positive patients than in PCR-negative patients. IL6 rs1800795 GG genotype and G allele frequency were higher in asymptomatic patients than in the symptomatic and intensive care unit groups. The IL6 rs1800795 C allele frequency was lower in asymptomatic patients than in the symptomatic and intensive care unit groups. IL6 rs1800795 GG genotype and G allele frequency were higher in CT negative patients than CT positive patients, while IL6 GC genotype and C allele frequency were higher in CT positive patients than negative patients. IL6 level elevation was seen in the asymptomatic patients compared to the symptomatic and intensive care unit groups. CONCLUSIONS These findings suggest that IL6 rs1800795 may contribute to the susceptibility of COVID-19 in people to Turkish origin. LIMITATIONS Further large-scale studies in different genetic populations are needed as this is a single-center, prospective study.
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Affiliation(s)
- Ozlem Sezer
- Department of Medical Genetics, Faculty of Medicine, Samsun University, Samsun, Turkey
| | - Ayse Feyda Nursal
- Department of Medical Genetics, Faculty of Medicine, Hitit University, Corum, Turkey
| | - Ozgur Gunal
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Samsun University, Samsun, Turkey
| | - Selim Gorgun
- Department of Microbiology and Clinical Microbiology, Samsun Training and Research Hospital, University of Health Sciences, Samsun, Turkey
| | - Akin Tekcan
- Department of Medical Biology, Faculty of Medicine, Amasya University, Amasya, Turkey
| | - Goksenin Unluguzel Ustun
- Department of Medical Biochemistry, Samsun Education and Research Hospital, University of Health Sciences, Samsun, Turkey
| | - Serbulent Yigit
- Department of Genetics, Faculty of Veterinary Medicine, Ondokuz Mayis University, Samsun, Turkey
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Rashid PMA, Salih GF. Genetic polymorphism between the Sorani and Hawrami kurdish populations and COVID-19 outcome. Mol Biol Rep 2023; 50:5177-5183. [PMID: 37119412 PMCID: PMC10148000 DOI: 10.1007/s11033-023-08448-8] [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: 02/02/2023] [Accepted: 04/12/2023] [Indexed: 05/01/2023]
Abstract
BACKGROUND Coronavirus Disease 2019 (COVID-19) is a global pandemic, and mortality and clinical consequences vary across countries. One of the factors influencing COVID-19 outcomes is genetic polymorphism. Two Kurdish populations, Sorani and Hawrami, live in the Sulaimani province of the Kurdistan Region of Iraq. It seems Hawrami had a milder COVID-19 outcome. According to previous research conducted on various ethnic groups across the globe, single nucleotide polymorphisms (SNPs) in the interferon-induced transmembrane protein 3 (IFITM3) and interluken-6 (IL6) genes were associated with the severity of COVID-19 in those populations. METHODS AND RESULTS We hypothesized that Hawrami may have protective SNPs. So, in this study, we used DNA sequencing to genotype three IFITM3 SNPs and nine IL6 SNPs by DNA sequencing to investigate the association of Sorani and Hawrami population polymorphisms. Genotype AA for the rs12252 SNP in IFITM3 was insignificantly more common in the Sorani group (54% vs. 44%). The Hawrami population showed a higher percentage of the CC genotype of the rs34481144 SNP in the IFITM3 gene (62% vs. 44.3%) and a higher proportion of the non-risky GG genotype of the rs1800795 SNP in the IL6 gene (53.4 vs. 43.3); however, the SNPs were insignificantly associated between the two populations. CONCLUSIONS IFITM3 and IL6 SNPs have no statistically significant association between the two Kurdish populations. The decreased proportion of non-risk alleles at rs34481144 and rs1800795 in the Hawrami population may partially support the research hypothesis. However, contrary to our hypothesis, the Sorani group had an insignificantly higher protective variant of the rs12252 SNP.
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Affiliation(s)
- Peshnyar M A Rashid
- Medical Laboratory Science Department, Komar University of Science and Technology, Sulaymaniyah, Iraq.
| | - Gaza F Salih
- Department of Biology, College of Science, University of Sulaimani, Sulaimaniyah, Iraq
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Wilkes C, Bava M, Graham HR, Duke T. What are the risk factors for death among children with pneumonia in low- and middle-income countries? A systematic review. J Glob Health 2023; 13:05003. [PMID: 36825608 PMCID: PMC9951126 DOI: 10.7189/jogh.13.05003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023] Open
Abstract
Background Knowledge of the risk factors for and causes of treatment failure and mortality in childhood pneumonia is important for prevention, diagnosis, and treatment at an individual and population level. This review aimed to identify the most important risk factors for mortality among children aged under ten years with pneumonia. Methods We systematically searched MEDLINE, EMBASE, and PubMed for observational and interventional studies reporting risk factors for mortality in children (aged two months to nine years) in low- and middle-income countries (LMICs). We screened articles according to specified inclusion and exclusion criteria, assessed risk of bias using the EPHPP framework, and extracted data on demographic, clinical, and laboratory risk factors for death. We synthesized data descriptively and using Forest plots and did not attempt meta-analysis due to the heterogeneity in study design, definitions, and populations. Findings We included 143 studies in this review. Hypoxaemia (low blood oxygen level), decreased conscious state, severe acute malnutrition, and the presence of an underlying chronic condition were the risk factors most strongly and consistently associated with increased mortality in children with pneumonia. Additional important clinical factors that were associated with mortality in the majority of studies included particular clinical signs (cyanosis, pallor, tachypnoea, chest indrawing, convulsions, diarrhoea), chronic comorbidities (anaemia, HIV infection, congenital heart disease, heart failure), as well as other non-severe forms of malnutrition. Important demographic factors associated with mortality in the majority of studies included age <12 months and inadequate immunisation. Important laboratory and investigation findings associated with mortality in the majority of studies included: confirmed Pneumocystis jirovecii pneumonia (PJP), consolidation on chest x-ray, pleural effusion on chest x-ray, and leukopenia. Several other demographic, clinical and laboratory findings were associated with mortality less consistently or in a small numbers of studies. Conclusions Risk assessment for children with pneumonia should include routine evaluation for hypoxaemia (pulse oximetry), decreased conscious state (e.g. AVPU), malnutrition (severe, moderate, and stunting), and the presence of an underlying chronic condition as these are strongly and consistently associated with increased mortality. Other potentially useful risk factors include the presence of pallor or anaemia, chest indrawing, young age (<12 months), inadequate immunisation, and leukopenia.
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Affiliation(s)
- Chris Wilkes
- Murdoch Children’s Research Institution, Royal Children’s Hospital, Parkville, Victoria, Australia
| | - Mohamed Bava
- Murdoch Children’s Research Institution, Royal Children’s Hospital, Parkville, Victoria, Australia
| | - Hamish R Graham
- Murdoch Children’s Research Institution, Royal Children’s Hospital, Parkville, Victoria, Australia,Department of Paediatrics, University of Melbourne, Royal Children’s Hospital, Parkville, Victoria, Australia
| | - Trevor Duke
- Murdoch Children’s Research Institution, Royal Children’s Hospital, Parkville, Victoria, Australia,Department of Paediatrics, University of Melbourne, Royal Children’s Hospital, Parkville, Victoria, Australia
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Zhao XF, Yang MF, Wu YQ, Zhao PN, Zhu SY, Xiong F, Fan M, Li YF. Association between Interleukin-6 rs1800795 Polymorphism and Serum Interleukin-6 Levels and Full-Term Neonatal Sepsis. J PEDIAT INF DIS-GER 2022. [DOI: 10.1055/s-0042-1757882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Abstract
Objective Cytokines are involved in the pathogenesis of sepsis. Association between IL-6 rs1800795 G/C polymorphism and the risks of sepsis is controversial. The aim of this study was to investigate the association of IL-6 rs1800795 G/C gene polymorphism with full-term neonatal sepsis and to determine its effect on the serum IL6 levels in these infants by a prospective study.
Methods The study included 200 full-term neonates from January 2019 to December 2020: 100 with sepsis (sepsis group), 47 with culture proven sepsis, and 53 with clinical sepsis, and 100 without infection (control group). The concentrations of IL-6 in serum were determined using enzyme-linked immunosorbent assay (ELISA). The polymorphisms of IL-6 rs1800795 G/C were analyzed to compare the genotypic and allelic frequencies in the groups by using the first-generation sequencing (Sanger sequencing). The association was studied between IL-6 rs1800795 G/C polymorphisms and serum IL-6 levels, and neonatal sepsis. The relationships between IL-6 rs1800795G/C polymorphisms and sepsis and serum IL-6 levels were separately analyzed by logistic regression and analysis of variance.
Results There were no significant differences in genotypic frequencies and allelic frequencies of IL-6 rs1800795(G/C) in the groups (p >0.05). There were no relations between IL-6 rs1800795G/C polymorphisms and sepsis and serum IL-6 levels by statistical analysis (p >0.05).
Conclusion IL-6rs1800795G/C may not be genetic risk factors for full-term neonates; There was no association between serum IL-6 levels and IL-6 rs1800795G/C polymorphisms.
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Affiliation(s)
- Xiao-Fen Zhao
- Department of Neonatology, Kunming Children's Hospital, Yunnan, China
| | - Mi-feng Yang
- Department of Neonatology, Kunming Children's Hospital, Yunnan, China
| | - Yu-qin Wu
- Department of Neonatology, Kunming Children's Hospital, Yunnan, China
| | - Peng-na Zhao
- Department of Neonatology, Kunming Children's Hospital, Yunnan, China
| | - Shuang-Yan Zhu
- Department of Neonatology, Kunming Children's Hospital, Yunnan, China
| | - Fei Xiong
- Department of Neonatology, Kunming Children's Hospital, Yunnan, China
| | - Mao Fan
- Department of Neonatology, Kunming Children's Hospital, Yunnan, China
| | - Yang-Fang Li
- Department of Neonatology, Kunming Children's Hospital, Yunnan, China
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Fishchuk L, Rossokha Z, Pokhylko V, Cherniavska Y, Tsvirenko S, Kovtun S, Medvedieva N, Vershyhora V, Gorovenko N. Modifying effects of TNF-α, IL-6 and VDR genes on the development risk and the course of COVID-19. Pilot study. Drug Metab Pers Ther 2021; 37:133-139. [PMID: 34860474 DOI: 10.1515/dmpt-2021-0127] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 11/03/2021] [Indexed: 12/12/2022]
Abstract
OBJECTIVES COVID-19 continues to range around the world and set morbidity and mortality antirecords. Determining the role of genetic factors in the development of COVID-19 may contribute to the understanding of the pathogenetic mechanisms that lead to the development of complications and fatalities in this disease. The aim of our study was to analyze the effect of TNF-α (rs1800629), IL-6 (rs1800795) and VDR (rs731236 and rs1544410) genes variants on the development risk and the course of COVID-19 in intensive care patients. METHODS The study group included 31 patients with diagnosis "viral COVID-19 pneumonia". All patients underwent standard daily repeated clinical, instrumental and laboratory examinations. Determination of IL-6, TNF-α, and VDR genes variants was performed using the PCR-RFLP method. RESULTS It was found a significant increase in the rate of the CC genotype and C allele (38.7 vs. 12.0% and 0.6 vs. 0.4%, respectively) of the IL-6 gene in all patients of the study in comparison with population frequencies. There was a significantly higher rate of heterozygous genotypes TC and GA of the VDR gene in group of died patients. The rs1800629 variant of the TNF-α gene is associated with the need for respiratory support and its longer duration in patients with COVID-19. CONCLUSIONS The obtained results support a hypothesis about the influence of variants of IL-6, TNF-α and VDR genes on severity of COVID-19. However, in order to draw definite conclusions, further multifaceted research in this area are need.
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Affiliation(s)
- Liliia Fishchuk
- State Institution "Reference-Centre for Molecular Diagnostic of Public Health Ministry of Ukraine", Kyiv, Ukraine
| | - Zoia Rossokha
- State Institution "Reference-Centre for Molecular Diagnostic of Public Health Ministry of Ukraine", Kyiv, Ukraine
| | - Valeriy Pokhylko
- Department of Pediatrics № 1 with Propedeutics and Neonatology, Ukrainian Medical Stomatological Academy, Poltava, Ukraine
| | - Yuliia Cherniavska
- Department of Pediatrics № 1 with Propedeutics and Neonatology, Ukrainian Medical Stomatological Academy, Poltava, Ukraine
| | - Svitlana Tsvirenko
- Department of Pediatrics № 1 with Propedeutics and Neonatology, Ukrainian Medical Stomatological Academy, Poltava, Ukraine
| | - Serhii Kovtun
- Poltava Regional Clinical Infectious Diseases Hospital of Poltava Regional Council, Poltava, Ukraine
| | - Nataliia Medvedieva
- State Institution "Reference-Centre for Molecular Diagnostic of Public Health Ministry of Ukraine", Kyiv, Ukraine
| | - Viktoriia Vershyhora
- State Institution "Reference-Centre for Molecular Diagnostic of Public Health Ministry of Ukraine", Kyiv, Ukraine
| | - Nataliia Gorovenko
- Department of Medical and Laboratory Genetics, Shupyk National Healthcare University of Ukraine, Kyiv, Ukraine
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Assessing the potential correlation of polymorphisms in the IL6R with relative IL6 elevation in severely ill COVID-19 patients'. Cytokine 2021; 148:155662. [PMID: 34353696 PMCID: PMC8318728 DOI: 10.1016/j.cyto.2021.155662] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 07/19/2021] [Accepted: 07/22/2021] [Indexed: 01/18/2023]
Abstract
Background Elevated Interleukin-6 (IL-6) may play an important role in the pathophysiology of COVID-19 yet attenuated response is not seen across all severe patients. We aimed to determine the effect of IL-6 baseline levels and other clinical variables on mortality and outcomes in hospitalized COVID-19 patients as well as to explore genetic variants associated with attenuated IL-6 response. Methods Baseline IL-6 cytokine levels were measured in hospitalized patients participating in ongoing ODYSSEY phase 3 randomized study of tradipitant and placebo in hospitalized patients with severe COVID-19 who are receiving supplemental oxygen support. Furthermore blood samples for whole genome sequencing analysis were collected from 150 participants. Results We report significantly elevated IL-6 in COVID-19 infected hospitalized patients, n = 100 (p-value < 0.0001) when compared to controls n = 324. We also report a significantly increased level of IL-6 (p-value < 0.01) between the severe and mild COVID-19 patients with severity defined on a WHO scale. Excessive IL-6 plasma levels correlate with higher mortality (p-value 0.001). Additionally, based on our classification analysis, combination of IL-6 elevation and high levels of serum glucose can identify highest risk-group of COVID19 patients. Furthermore, we explore the role of genetic regulatory variants affecting baseline IL-6 levels specifically in COVID-19 patients. We have directly tested the association between variants in the IL6 and IL6R gene region and IL6 plasma levels. We provide results for a common IL-6 variant previously associated with pneumonia, rs1800795, and rs2228145 that was previously shown to affect IL-6 plasma levels, as well as report on novel variants associated with IL-6 plasma levels detected in our study patients. Conclusions While it is unlikely that “cytokine storm” is the norm in severe COVID19, baseline elevations above 150 pg/ml may be associated with worst outcomes and as such may warrant treatment considerations. So far no clinical studies used IL-6 baseline assessment to stratify the patient population participating in clinical studies. We believe that careful examination and interpretation of the IL-6 levels and genetic variants can help to determine a patient population with a potentially very robust clinical response to IL-6 inhibition. Trial Registration: Clinicaltrials.gov: NCT04326426.
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Dukhinova M, Kokinos E, Kuchur P, Komissarov A, Shtro A. Macrophage-derived cytokines in pneumonia: Linking cellular immunology and genetics. Cytokine Growth Factor Rev 2021; 59:46-61. [PMID: 33342718 PMCID: PMC8035975 DOI: 10.1016/j.cytogfr.2020.11.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 11/24/2020] [Accepted: 11/25/2020] [Indexed: 12/16/2022]
Abstract
Macrophages represent the first line of anti-pathogen defense - they encounter invading pathogens to perform the phagocytic activity, to deliver the plethora of pro- and anti-inflammatory cytokines, and to shape the tissue microenvironment. Throughout pneumonia course, alveolar macrophages and infiltrated blood monocytes produce increasing cytokine amounts, which activates the antiviral/antibacterial immunity but can also provoke the risk of the so-called cytokine "storm" and normal tissue damage. Subsequently, the question of how the cytokine spectrum is shaped and balanced in the pneumonia context remains a hot topic in medical immunology, particularly in the COVID19 pandemic era. The diversity in cytokine profiles, involved in pneumonia pathogenesis, is determined by the variations in cytokine-receptor interactions, which may lead to severe cytokine storm and functional decline of particular tissues and organs, for example, cardiovascular and respiratory systems. Cytokines and their receptors form unique profiles in individual patients, depending on the (a) microenvironmental context (comorbidities and associated treatment), (b) lung monocyte heterogeneity, and (c) genetic variations. These multidisciplinary strategies can be proactively considered beforehand and during the pneumonia course and potentially allow the new age of personalized immunotherapy.
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Affiliation(s)
- Marina Dukhinova
- International Institute "Solution Chemistry of Advanced Materials and Technology", ITMO University, St. Petersburg, Russia.
| | - Elena Kokinos
- International Institute "Solution Chemistry of Advanced Materials and Technology", ITMO University, St. Petersburg, Russia
| | - Polina Kuchur
- International Institute "Solution Chemistry of Advanced Materials and Technology", ITMO University, St. Petersburg, Russia
| | - Alexey Komissarov
- International Institute "Solution Chemistry of Advanced Materials and Technology", ITMO University, St. Petersburg, Russia
| | - Anna Shtro
- International Institute "Solution Chemistry of Advanced Materials and Technology", ITMO University, St. Petersburg, Russia; Department of Chemotherapy, Smorodintsev Research Institute of Influenza, St. Petersburg, Russia
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Dos Santos EC, Silvestre MDPSCA, Paz JLP, Machado RLD, Lima LNGC. Study of TNF-α, IFN-γ, TGF-β, IL-6, and IL-10 Gene Polymorphism in Individuals from the Leprosy-Endemic Area in the Brazilian Amazon. J Interferon Cytokine Res 2021; 41:125-131. [PMID: 33656915 DOI: 10.1089/jir.2018.0162] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
This study aimed at verifying the relationship between the polymorphisms of the cytokines tumor necrosis factor-alpha (TNF-α) -308 G → A (rs1800629); interferon gamma (IFN-γ) +874 T → A (rs2430561); transforming growth factor-beta (TGF-β) códon 10 (rs1982073) and códon 25 (rs1800471); interleukin (IL)-6 - 174 G → C (rs180079) and IL-10 - 1082 A→T (rs1800896); -819 C → T (rs1800871); -592 A→C (rs1800872); and leprosy. Blood samples were analyzed from 106 individuals, of whom 24 were paucibacillary (PB), 28 were multibacillary (MB), and 54 were patient contacts. Analysis of cytokine polymorphisms was typified by the polymerase chain reaction technique. For TGF-β +869 T → C and +915 G→C, a tendency to associate the presence of the C allele at codon 10 with leprosy was demonstrated, with the T allele being most frequently found in the CCOSI (P = 0.056). For the polymorphisms IL-10 - 1082 A→T, -819 C→T, and -592 A→C, we found an association of the GCC/GCC genotype with the susceptibility to the disease and the A allele at position 1082 with the leprosy protection. Greater predominance was found of ACC/ATA (31.3%) and GCC/ATA (37.5%) (P = 0.03) and the A allele at position -1082 (76.85%) (P = 0.043) in the CCOSI groups, whereas the GCC/GCC was found in the MB group (22.2%) (P = 0.05). For the other cytokines's single-nucleotide polymorphisms, there were no associations with susceptibility to leprosy. These results are limited by sample size, may not be conclusive, and will need further confirmation in a larger cohort.
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Affiliation(s)
- Everaldina Cordeiro Dos Santos
- Bacteriology Section of the Evandro Chagas Institute, Ministry of Health, Ananindeua, Brasil
- Postgraduate Program in Epidemiology and Health Surveillance of the Evandro Chagas Institute, Ananindeua, Brasil
| | | | - Jasna Letícia Pinto Paz
- Postgraduate Program in Parasitic Biology in the Amazon, State University of Pará, Belém, Brasil
| | | | - Luana Nepomuceno Gondim Costa Lima
- Bacteriology Section of the Evandro Chagas Institute, Ministry of Health, Ananindeua, Brasil
- Postgraduate Program in Parasitic Biology in the Amazon, State University of Pará, Belém, Brasil
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11
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dos Santos EC, Machado RLD, Paz JL, Silvestre MDPSCA, Lima KVB, Lima LNGC. Study of TNF-α, IFN-γ, TGF-β, IL-6, and IL-10 gene polymorphism in individuals from the leprosy endemic area in the Brazilian Amazon. Meta Gene 2020. [DOI: 10.1016/j.mgene.2020.100740] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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12
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Liu Y, Xu HB. Genetic polymorphisms of rs9313422 G>C and rs41297579 G>A at the promoter of TIM-1 gene contribute to the risk of community-acquired pneumonia in children. J Clin Lab Anal 2019; 34:e23095. [PMID: 31800133 PMCID: PMC7083502 DOI: 10.1002/jcla.23095] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 08/18/2019] [Accepted: 10/07/2019] [Indexed: 12/28/2022] Open
Abstract
OBJECTIVE To investigate the association of genetic polymorphisms of rs9313422 G>C and rs41297579 G>A at the promoter of TIM-1 gene with the risk of community-acquired pneumonia (CAP) in children. METHODS A total of 112 children with CAP were included as the case group. Another 120 healthy children were enrolled as the control group. Polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) was applied for the genotyping of rs9313422 G>C and rs41297579 G>A in the promoter region of TIM-1. RESULTS rs9313422 G>C was related to the risk of CAP in children under codominant model, dominant model, recessive model, and allele model. Besides, the A allele of rs41297579 G>A could increase the risk of CAP in children. Besides, the haplotype GA (rs9313422-rs41297579) and GG reduced the risk of children CAP, while haplotype CA had an elevated risk. rs9313422 G>C and rs41297579 G>A polymorphisms were both associated with the severity of CAP in children, and the rs9313422 G>C was also related to the ICU admission rate. In addition, patients carried with the mutant homozygotes of rs9313422 G>C and rs41297579 G>A showed higher levels of white blood cell (WBC), procalcitonin (PCT), and C-reactive protein (CRP) than the wild type and heterozygous genotypes carriers. CONCLUSION rs9313422 G>C and rs41297579 G>A polymorphisms in the promoter region of TIM-1 could increase the risk of CAP in children and showed a relation with inflammatory responses and severity.
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Affiliation(s)
- Yang Liu
- Department of Pediatrics, First Affiliated Hospital of Yangtze University, Jingzhou, China
| | - Hong-Bo Xu
- Neonatal Department, Maternal and Child Health Hospital of Jingzhou City, Jingzhou, China
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13
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Wang H, Tong Z, Li J, Xiao K, Ren F, Xie L. Genetic variants in Forkhead box O1 associated with predisposition to sepsis in a Chinese Han population. BMC Infect Dis 2019; 19:781. [PMID: 31492105 PMCID: PMC6731606 DOI: 10.1186/s12879-019-4330-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 07/29/2019] [Indexed: 12/02/2022] Open
Abstract
Background Genetic variant is one of the causes of sepsis patients’ mortality. Now, many studies have identified several SNPs related to sepsis. However, none of these studies were identified in a genome-wide way. We aimed to detect genetic polymorphisms of sepsis patients. Methods The blood samples of eight normal controls and ten sepsis patients were collected for whole exome sequencing. Then, Single Nucleotide Polymorphisms (SNPs) were selected according to quality score and number of sepsis patients who had this variants. Synonymous mutations were removed. Genes including these remaining variants were used for functional analyses. After analyses, the remaining SNPs and indels were validated in 149 normal controls and 156 sepsis patients. Finally, serum levels of proteins coded by genes including these SNPs were evaluated. Results After whole exome sequencing, 97 SNPs and one indel site were left. Then, functional screening was performed. Only seven SNPs were used for further validation. As a result, the rs2721068 in dominant model and rs17446614 in recessive model were associated with sepsis, and the ORs of these two SNPs were 3.24 (95%CI, 1.25, 8.44) and 0.47 (0.026, 0.88), respectively. These two SNPs were both located in Forkhead box O1 (FOXO1) gene. For rs2721068 (T/T, T/C-C/C) and rs17446614 (A/A-A/G, G/G), serum levels of foxo1 in sepsis patients were both significantly lower in normal controls. Conclusions We firstly reported that the rs2721068 and rs17446614 were correlated to genetic predisposition to sepsis. Electronic supplementary material The online version of this article (10.1186/s12879-019-4330-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Huijuan Wang
- Department of Respiratory Medicine, Chinese PLA General Hospital, 28th Fuxing Road, Beijing, 100853, China.,Department of Respiratory and Critical Care Medicine, Beijing Chao-Yang Hospital, Beijing Institute of Respiratory Medicine, Capital Medical University, Beijing, 100020, China
| | - Zhaohui Tong
- Department of Respiratory and Critical Care Medicine, Beijing Chao-Yang Hospital, Beijing Institute of Respiratory Medicine, Capital Medical University, Beijing, 100020, China
| | - Jia Li
- Department of Nanlou Respiratory Medicine, Chinese PLA General Hospital, 28th Fuxing Road, Beijing, 100853, China
| | - Kun Xiao
- Department of Respiratory Medicine, Chinese PLA General Hospital, 28th Fuxing Road, Beijing, 100853, China
| | - Feifei Ren
- Department of Respiratory Medicine, Chinese PLA General Hospital, 28th Fuxing Road, Beijing, 100853, China
| | - Lixin Xie
- Department of Respiratory Medicine, Chinese PLA General Hospital, 28th Fuxing Road, Beijing, 100853, China.
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Song W, Tan H, Wang S, Zhang Y, Ding Y. Association of High Mobility Group Box Protein B1 Gene Polymorphisms with Pneumonia Susceptibility and Severity. Genet Test Mol Biomarkers 2018; 23:3-11. [PMID: 30562142 DOI: 10.1089/gtmb.2018.0174] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
OBJECTIVE To investigate the relationship between the high mobility group box protein B1 (HMGB1) single nucleotide polymorphisms (SNPs) rs1412125, rs2249825, and rs1045411 with pneumonia in terms of susceptibility, severity, and inflammatory response. METHODS The genotypes of HMGB1 rs1412125 (-1615T > C), rs2249825 (3814C > G), and rs1045411 (2262C > T) loci in 328 patients with community-acquired pneumonia (CAP) and 317 healthy subjects were analyzed by Sanger sequencing. The expression and secretion of the inflammatory cytokines HMGB1, interleukin (IL)-10, tumor necrosis factor-alpha (TNF-α), and IL-6 were determined after lipopolysaccharide (LPS) stimulation of peripheral whole blood cells. RESULTS The risk of CAP was higher in carriers of the mutant HMGB1 rs1412125 and rs2249825 alleles than those that had the wild type alleles (adjusted odds ratio [OR] = 1.241; 95% confidence interval [CI] = 1.061-1.448; p = 0.007; adjusted OR = 1.225; 95% CI = 1.038-1.427; p = 0.016, respectively). Moreover, the mutation-carrying patients with CAP were more likely to develop severe community-acquired pneumonia (SCAP). There was no correlation between the HMGB1 rs1045411 SNP alleles and CAP or SCAP (p > 0.05). The expression and secretion of the inflammatory cytokines HMGB1, IL-10, TNF-α, and IL-6 was significantly higher in LPS-stimulated peripheral blood among patients with mutations at the rs1412125 and rs2249825 loci compared with those with wild type alleles (p < 0.05). The 30-day mortality rates for CAP patients with mutations at the rs1412125 and rs2249825 loci of HMGB1 were significantly higher than those that had wild type alleles. The mortality rate difference between rs1045411 wild-type CAP patients and mutant was not significant (p = 0.789). CONCLUSION SNPs at the rs1412125 and rs2249825 loci of HMGB1 are associated with pneumonia in terms of susceptibility, severity, and inflammatory response.
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Affiliation(s)
- Weiwei Song
- 1 Department of Critical Care Medicine, Zibo Central Hospital, Zibo, China
| | - Haibo Tan
- 1 Department of Critical Care Medicine, Zibo Central Hospital, Zibo, China
| | - Shifu Wang
- 1 Department of Critical Care Medicine, Zibo Central Hospital, Zibo, China
| | - Yun Zhang
- 1 Department of Critical Care Medicine, Zibo Central Hospital, Zibo, China
| | - Yueping Ding
- 2 Department of Intensive Care Unit, The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
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Montoya-Ruiz C, Jaimes FA, Rugeles MT, López JÁ, Bedoya G, Velilla PA. Variants in LTA, TNF, IL1B and IL10 genes associated with the clinical course of sepsis. Immunol Res 2017; 64:1168-1178. [PMID: 27592234 DOI: 10.1007/s12026-016-8860-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The aim of this study was to explore the association between some SNPs of the TNF, LTA, IL1B and IL10 genes with cytokine concentrations and clinical course in Colombian septic patients. We conducted a cross-sectional study to genotype 415 septic patients and 205 patients without sepsis for the SNPs -308(G/A) rs1800629 of TNF; +252 (G/A) rs909253 of LTA; -511(A/G) rs16944 and +3953(C/T) rs1143634 of IL1B; and -1082(A/G) rs1800896, -819(C/T) rs1800871 and -592(C/A) rs1800872 of IL10. The association of theses SNPs with the following parameters was evaluated: (1) the presence of sepsis; (2) severity and clinical outcomes; (3) APACHE II and SOFA scores; and (4) procalcitonin, C-reactive protein, tumor necrosis factor, lymphotoxin alpha, interleukin 1 beta and interleukin 10 plasma concentrations. We found an association between the SNP LTA +252 with the development of sepsis [OR 1.29 (1.00-1.68)]; the SNP IL10 -1082 with sepsis severity [OR 0.53 (0.29-0.97)]; the TNF -308 with mortality [OR 0.33 (0.12-0.95)]; and the IL10 -592 and IL10 -1082 with admission to the intensive care unit (ICU) [OR 3.36 (1.57-7.18)] and [OR 0.18 (0.04-0.86)], respectively. None of the SNPs were associated with cytokine levels, procalcitonin and C-reactive protein serum concentrations, nor with APACHE II and SOFA scores. Our results suggest that these genetic variants play an important role in the development of sepsis and its clinical course.
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Affiliation(s)
- Carolina Montoya-Ruiz
- Grupo Inmunovirología, Facultad de Medicina, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia
| | - Fabián A Jaimes
- Grupo Académico de Epidemiologia Clínica, Facultad de Medicina, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia.,Departamento de Medicina Interna, Facultad de Medicina, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia.,Unidad de Investigaciones, Hospital Pablo Tobón Uribe Medellín, Calle 78B No. 69-240, Medellín, Colombia
| | - Maria T Rugeles
- Grupo Inmunovirología, Facultad de Medicina, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia
| | - Juan Álvaro López
- Escuela de Microbiología, Grupo Inmunodeficiencias Primarias-Facultad de Medicina, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia
| | - Gabriel Bedoya
- Grupo Genética Molecular, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia
| | - Paula A Velilla
- Grupo Inmunovirología, Facultad de Medicina, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia. .,School of Medicine, University of Antioquia, Carrera 53 No. 61-30 Lab. 532, Sede de Investigación Universitaria - SIU, Medellín, Colombia.
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Lorente L, Martín MM, Pérez-Cejas A, Barrios Y, Solé-Violán J, Ferreres J, Labarta L, Díaz C, Jiménez A. Association between Interleukin-6 Promoter Polymorphism (-174 G/C), Serum Interleukin-6 Levels and Mortality in Severe Septic Patients. Int J Mol Sci 2016; 17:ijms17111861. [PMID: 27834822 PMCID: PMC5133861 DOI: 10.3390/ijms17111861] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Revised: 11/01/2016] [Accepted: 11/04/2016] [Indexed: 12/29/2022] Open
Abstract
The association between interleukin (IL)-6 promoter polymorphism (-174 G/C), circulating IL-6 levels and mortality in septic patients has scarcely been addressed, and then only in studies of small sample size, and a direct association among them has not been previously reported. Therefore, the purpose of our study was to determine whether this association exists. An observational, prospective and multicenter study including severe septic patients was undertaken and serum IL-6 levels at severe sepsis diagnosis and IL-6 promoter polymorphism (-174 G/C) were determined. The end-point of the study was 30-day mortality. The study included 263 patients with the following genotypes of IL-6 promoter polymorphism (-174 G/C): 123 (46.8%) GG, 110 (41.8%) GC and 30 (11.4%) CC. CC homozygous patients showed lower sepsis-related organ failure assessment (SOFA) score, serum IL-6 levels and mortality at 30 days compared to those with other genotypes (GC or GG). On regression analysis, CC homozygous patients showed lower 30-day mortality than those with genotype GG (odds ratio = 0.21; 95% CI = 0.053−0.838; p = 0.03) or GC (hazard ratio = 0.28; 95% CI = 0.074−1.037; p = 0.06). The most important results of our study were that CC might be a favorable genotype in septic patients showing lower serum IL-6 levels and lower risk of death within 30 days.
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Affiliation(s)
- Leonardo Lorente
- Intensive Care Unit, Hospital Universitario de Canarias, Ofra, s/n, La Laguna, 38320 Santa Cruz de Tenerife, Spain.
| | - María M Martín
- Intensive Care Unit, Hospital Universitario Nuestra Señora Candelaria, Crta Rosario s/n, 38010 Santa Cruz de Tenerife, Spain.
| | - Antonia Pérez-Cejas
- Laboratory Deparment, Hospital Universitario de Canarias, Ofra, s/n, La Laguna, 38320 Santa Cruz de Tenerife, Spain.
| | - Ysamar Barrios
- Research Unit, Hospital Universitario de Canarias, Ofra, s/n, La Laguna, 38320 Santa Cruz de Tenerife, Spain.
| | - Jordi Solé-Violán
- Intensive Care Unit, Hospital Universitario Dr. Negrín, Barranco de la Ballena s/n, 35010 Las Palmas de Gran Canaria, Spain.
| | - José Ferreres
- Intensive Care Unit, Hospital Clínico Universitario de Valencia, Avda, Blasco Ibáñez nº17, 46004 Valencia, Spain.
| | - Lorenzo Labarta
- Intensive Care Unit, Hospital San Jorge de Huesca, Avenida Martínez de Velasco nº36, 22004 Huesca, Spain.
| | - César Díaz
- Intensive Care Unit, Hospital Insular, Plaza Dr. Pasteur s/n, 35016 Las Palmas de Gran Canaria, Spain.
| | - Alejandro Jiménez
- Research Unit, Hospital Universitario de Canarias, Ofra, s/n, La Laguna-38320, 38320 Santa Cruz de Tenerife, Spain.
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17
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Smelaya TV, Belopolskaya OB, Smirnova SV, Kuzovlev AN, Moroz VV, Golubev AM, Pabalan NA, Salnikova LE. Genetic dissection of host immune response in pneumonia development and progression. Sci Rep 2016; 6:35021. [PMID: 27725770 PMCID: PMC5057148 DOI: 10.1038/srep35021] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Accepted: 09/20/2016] [Indexed: 01/21/2023] Open
Abstract
The role of host genetic variation in pneumonia development and outcome is poorly understood. We studied common polymorphisms in the genes of proinflammatory cytokines (IL6 rs1800795, IL8 rs4073, IL1B rs16944), anti-inflammatory cytokines (IL10 rs1800896, IL4 rs2243250, IL13 rs20541) and toll-like receptors (TLR2 rs5743708 and rs4696480, TLR4 rs4986791, TLR9 rs352139, rs5743836 and rs187084) in patients with community-acquired pneumonia (CAP) (390 cases, 203 controls) and nosocomial pneumonia (355 cases, 216 controls). Experimental data were included in a series of 11 meta-analyses and eight subset analyses related to pneumonia susceptibility and outcome. TLR2 rs5743708 minor genotype appeared to be associated with CAP/Legionnaires’ disease/pneumococcal disease. In CAP patients, the IL6 rs1800795-C allele was associated with severe sepsis/septic shock/severe systemic inflammatory response, while the IL10 rs1800896-A allele protected against the development of these critical conditions. To contribute to deciphering of the above results, we performed an in silico analysis and a qualitative synthesis of literature data addressing basal and stimulated genotype-specific expression level. This data together with database information on transcription factors’ affinity changes caused by SNPs in putative promoter regions, the results of linkage disequilibrium analysis along with SNPs functional annotations supported assumptions about the complexity underlying the revealed associations.
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Affiliation(s)
- Tamara V Smelaya
- V. A. Negovsky Research Institute of General Reanimatology, Russian Academy of Sciences, 25 Petrovka str., build.2, Moscow 107031, Russia
| | - Olesya B Belopolskaya
- N.I. Vavilov Institute of General Genetics, Russian Academy of Sciences, 3 Gubkin street, Moscow 117971, Russia
| | - Svetlana V Smirnova
- N.I. Vavilov Institute of General Genetics, Russian Academy of Sciences, 3 Gubkin street, Moscow 117971, Russia
| | - Artem N Kuzovlev
- V. A. Negovsky Research Institute of General Reanimatology, Russian Academy of Sciences, 25 Petrovka str., build.2, Moscow 107031, Russia
| | - Viktor V Moroz
- V. A. Negovsky Research Institute of General Reanimatology, Russian Academy of Sciences, 25 Petrovka str., build.2, Moscow 107031, Russia
| | - Arkadiy M Golubev
- V. A. Negovsky Research Institute of General Reanimatology, Russian Academy of Sciences, 25 Petrovka str., build.2, Moscow 107031, Russia
| | - Noel A Pabalan
- Center for Research and Development, Angeles University Foundation, Angeles City 2009, Philippines
| | - Lyubov E Salnikova
- V. A. Negovsky Research Institute of General Reanimatology, Russian Academy of Sciences, 25 Petrovka str., build.2, Moscow 107031, Russia.,N.I. Vavilov Institute of General Genetics, Russian Academy of Sciences, 3 Gubkin street, Moscow 117971, Russia
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18
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Hu D, Wang H, Huang X, Jiang Y, Qin Y, Xiong B, Qin G, Sooranna SR, Pinhu L. Investigation of association between IL-8 serum levels and IL8 polymorphisms in Chinese patients with sepsis. Gene 2016; 594:165-170. [PMID: 27642120 DOI: 10.1016/j.gene.2016.09.024] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 08/21/2016] [Accepted: 09/14/2016] [Indexed: 01/25/2023]
Abstract
OBJECTIVE To assess the clinical relevance of IL8 gene polymorphisms in patients with sepsis and its association with systemic IL-8 levels. METHODS PCR and DNA sequencing were used to examine the polymorphism of IL8 in 152 patients with sepsis and in 199 healthy volunteers in China. The distribution frequencies of the genotype and allele were compared among different groups. The serum IL-8 was measured by ELISA and analyzed in relation to polymorphisms of IL8. RESULTS The homozygote TT genotype and T allele of rs4073 (genotype: p=0.01, allele: p=0.002), the homozygote CC genotype and C allele (genotype: p=0.03, allele: p=0.003) of rs2227306, homozygote AA genotype and A allele of re1126647 (genotype: p=0.01, allele: p=0.002) were associated with susceptibility to sepsis in males. Serum IL-8 levels were significantly increased in patients with sepsis but showed no correlation with IL8 rs4073, rs2227306 and rs1126647 polymorphisms. CONCLUSIONS The male population carrying the homozygote TT genotype and T allele of rs4073, the homozygote CC genotype and C allele of rs2227306 and homozygote AA genotype and A allele of rs1126647 are more susceptible to sepsis, suggesting there is a protective effect in females carrying these genotypes and alleles respectively. There was no association between rs4073, rs2227306 and rs1126647 polymorphisms and serum levels of IL-8 in patients with sepsis.
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Affiliation(s)
- Donghai Hu
- Hubei Cancer Hospital, No. 116 Zhuodaoquan South Road, Hongshan District, Wuhan 430079, Hubei, PR China.
| | - Haiyan Wang
- Guangdong Women and Children Hospital, No. 521 Xing South Road, Panyu District, Guangzhou 511400, Guangdong, PR China.
| | - Xia Huang
- Affiliated Hospital of Youjiang Medical University, No.18 Zhongshan Road II, Baise 533099, Guangxi, PR China.
| | - Yujie Jiang
- Affiliated Hospital of Youjiang Medical University, No.18 Zhongshan Road II, Baise 533099, Guangxi, PR China.
| | - Yueqiu Qin
- Affiliated Hospital of Youjiang Medical University, No.18 Zhongshan Road II, Baise 533099, Guangxi, PR China.
| | - Bin Xiong
- People's Hospital of Guangxi Zhuang Autonomous Region, No. 6 Taoyuan Road, Nanning 530021, Guangxi, PR China.
| | - Gang Qin
- Minzu Hospital of Guangxi Zhuang Autonomous Region, No. 323 Mingxiu East Road, Nanning 530021, Guangxi, PR China.
| | - Suren R Sooranna
- Department of Surgery and Cancer, Imperial College London, Chelsea and Westminster Hospital, London SW10 9NH, UK.
| | - Liao Pinhu
- Affiliated Hospital of Youjiang Medical University, No.18 Zhongshan Road II, Baise 533099, Guangxi, PR China.
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Abstract
Community-acquired pneumonia (CAP) is the most common acute infectious cause of death in children worldwide. Consequently, research into the epidemiology, diagnosis, treatment, and prevention of pediatric CAP spans the translational research spectrum. Herein, we aim to review the most significant findings reported by investigators focused on pediatric CAP research that has been reported in 2014 and 2015. Our review focuses on several key areas relevant to the clinical management of CAP. First, we will review recent advances in the understanding of CAP epidemiology worldwide, including the role of vaccination in the prevention of pediatric CAP. We also report on the expanding role of existing and emerging diagnostic technologies in CAP classification and management, as well as advances in optimizing antimicrobial use. Finally, we will review CAP management from the policy and future endeavors standpoint, including the influence of clinical practice guidelines on clinician management and patient outcomes, and future potential research directions that are in the early stages of investigation.
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20
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Azab SF, Abdalhady MA, Ali A, Amin EK, Sarhan DT, Elhindawy EM, Almalky MAA, Elhewala AA, Salam MMA, Hashem MIA, Soliman AA, Akeel NE, Abdellatif SH, Ismail SM, Elsamad NA, Arafat MS, Rass AA, Basset MAA. Interleukin-6 gene polymorphisms in Egyptian children with febrile seizures: a case-control study. Ital J Pediatr 2016; 42:31. [PMID: 26960986 PMCID: PMC4784363 DOI: 10.1186/s13052-016-0244-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Accepted: 03/07/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Febrile seizures are the most common form of childhood seizures. Among pro-inflammatory cytokines, interleukin-6 is the key acute-phase cytokine. To date, only a few studies concerned the association of interleukin-6 gene polymorphisms with febrile seizures.In this study, we aimed to investigate 3 cytokine single-nucleotide polymorphisms situated at positions -174 (G/C), -572 (G/C), and -597 (G/A) in the promoter region of the interleukin-6 gene for the first time in Egyptian children with febrile seizures. METHODS This was a case-control study included 100 patients with febrile seizure, and matched with age, gender, ethnicity 100 healthy control subjects. Interleukin-6 -174 (G/C), -572 (G/C), and -597 (G/A) polymorphisms were genotyped by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP), while the serum IL6 levels were measured by ELISA method. RESULTS Compared to the controls subjects, the frequency of the -174 GG and -597 GG IL6 genotypes were observed to be increased in children with febrile seizures (OR: 4.17; 95 % CI: 1.86-9.49; P <0.01 and OR: 1.96; 95 % CI: 1.06-3.63;P <0.05, respectively). We found a significant positive association between the -597 GG genotype and susceptibility to complex febrile seizures as did the G allele at the same position (OR: 4.2; 95 % CI: 1.4-13.3 for the GG genotype; P <0.01) and (OR: 2.89; 95 % CI: 1.1-7.7 for the G allele; P <0.05 respectively). Our data revealed no association between IL6- genotypes and serum IL6 levels in patients with febrile seizures (P > 0.05). CONCLUSION In conclusion, our data brought a novel observation that the presence of a G allele or GG genotype at the -174 and the GG genotype at the -597 positions of the promoter region of the interleukin-6 gene constitute risk factors for developing febrile seizures in Egyptian children. Moreover, we observed a significant positive association between the IL6 -597 GG genotype and susceptibility to complex febrile seizures as did the G allele at the same position. However, we found no association between IL6- genotypes and serum IL6 levels in patients with febrile seizures.
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Affiliation(s)
- Seham F Azab
- Faculty of Medicine, Zagazig University, 18 Omar Bin Elkhattab St, Al Qawmia, Zagazig City, AlSharqia Governorate, Egypt.
| | - Mohamed A Abdalhady
- Faculty of Medicine, Zagazig University, 18 Omar Bin Elkhattab St, Al Qawmia, Zagazig City, AlSharqia Governorate, Egypt.
| | - Alshaymaa Ali
- Faculty of Medicine, Zagazig University, 18 Omar Bin Elkhattab St, Al Qawmia, Zagazig City, AlSharqia Governorate, Egypt.
| | - Ezzat K Amin
- Faculty of Medicine, Zagazig University, 18 Omar Bin Elkhattab St, Al Qawmia, Zagazig City, AlSharqia Governorate, Egypt.
| | - Dina T Sarhan
- Faculty of Medicine, Zagazig University, 18 Omar Bin Elkhattab St, Al Qawmia, Zagazig City, AlSharqia Governorate, Egypt.
| | - Eman M Elhindawy
- Faculty of Medicine, Zagazig University, 18 Omar Bin Elkhattab St, Al Qawmia, Zagazig City, AlSharqia Governorate, Egypt.
| | - Mohamed A A Almalky
- Faculty of Medicine, Zagazig University, 18 Omar Bin Elkhattab St, Al Qawmia, Zagazig City, AlSharqia Governorate, Egypt.
| | - Ahmed A Elhewala
- Faculty of Medicine, Zagazig University, 18 Omar Bin Elkhattab St, Al Qawmia, Zagazig City, AlSharqia Governorate, Egypt.
| | - Mohamed M A Salam
- Faculty of Medicine, Zagazig University, 18 Omar Bin Elkhattab St, Al Qawmia, Zagazig City, AlSharqia Governorate, Egypt.
| | - Mustafa I A Hashem
- Faculty of Medicine, Zagazig University, 18 Omar Bin Elkhattab St, Al Qawmia, Zagazig City, AlSharqia Governorate, Egypt.
| | - Attia A Soliman
- Faculty of Medicine, Zagazig University, 18 Omar Bin Elkhattab St, Al Qawmia, Zagazig City, AlSharqia Governorate, Egypt.
| | - Nagwa E Akeel
- Faculty of Medicine, Zagazig University, 18 Omar Bin Elkhattab St, Al Qawmia, Zagazig City, AlSharqia Governorate, Egypt.
| | - Sawsan H Abdellatif
- Faculty of Medicine, Zagazig University, 18 Omar Bin Elkhattab St, Al Qawmia, Zagazig City, AlSharqia Governorate, Egypt.
| | - Sanaa M Ismail
- Faculty of Medicine, Zagazig University, 18 Omar Bin Elkhattab St, Al Qawmia, Zagazig City, AlSharqia Governorate, Egypt.
| | - Nahla A Elsamad
- Faculty of Medicine, Zagazig University, 18 Omar Bin Elkhattab St, Al Qawmia, Zagazig City, AlSharqia Governorate, Egypt.
| | | | - Anwar A Rass
- Faculty of Medicine, Zagazig University, 18 Omar Bin Elkhattab St, Al Qawmia, Zagazig City, AlSharqia Governorate, Egypt.
| | - Maha A A Basset
- Faculty of Medicine, Zagazig University, 18 Omar Bin Elkhattab St, Al Qawmia, Zagazig City, AlSharqia Governorate, Egypt.
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Rendon A, Rendon-Ramirez EJ, Rosas-Taraco AG. Relevant Cytokines in the Management of Community-Acquired Pneumonia. Curr Infect Dis Rep 2016; 18:10. [PMID: 26874956 PMCID: PMC7088528 DOI: 10.1007/s11908-016-0516-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Community-acquired pneumonia (CAP) is the leading cause of infectious death in the world. Immune dysregulation during acute lung infection plays a role in lung injury and the systemic inflammatory response. Cytokines seem to be major players in severe lung infection cases. Here, we present a review of published papers in the last 3 years regarding this topic. The cytokine response during pneumonia is different in bacterial vs viral infections; some of these cytokines correlate with clinical severity scales such as CURB65 or SOFA. Treatment focused in the cytokine environment is an interesting area that could impact the prognosis of CAP. Some of the agents that have been studied as co-adjuvant therapy are corticosteroids, macrolides, and linezolid, but anyone of those have shown a clear or proven efficacy or have been recommended as a part of the standard of care for CAP. More studies designed to define the role of immunomodulatory agents, such as co-adjuvant therapy in pneumonia, are needed.
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Affiliation(s)
- Adrian Rendon
- School of Medicine and University Hospital, CIPTIR (Centro de investigación, prevención y tratamiento de infecciones respiratorias), Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, México
| | - Erick J Rendon-Ramirez
- School of Medicine and University Hospital, Internal Medicine Department, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, México
| | - Adrian G Rosas-Taraco
- Department of Immunology Monterrey, School of Medicine, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, México.
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Clinical relevance of single nucleotide polymorphisms within the 13 cytokine genes in North Indian trauma hemorrhagic shock patients. Scand J Trauma Resusc Emerg Med 2015; 23:96. [PMID: 26561011 PMCID: PMC4642631 DOI: 10.1186/s13049-015-0174-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Accepted: 10/29/2015] [Indexed: 12/25/2022] Open
Abstract
INTRODUCTION The susceptibility to adverse outcome from critical injury (occurrence of sepsis, septic shock, organ dysfunction/failure, and mortality) varies dramatically due to different degrees of inflammatory response. We assessed the relationship of the genotype distribution of various cytokine gene polymorphisms (CGP) with regard to the development of sepsis, organ dysfunction or mortality in severely injured patients. METHOD Observational, hospital-based cohort study of 114 severely injured North Indian patients from New Delhi admitted to the Emergency Department (ED) of Trauma Centre, AIIMS. Patients were monitored from day first to discharge or death, measuring SOFA score, sepsis and septic shock occurrences up to one month. We have analyzed 13 cytokine genes, including the SNPs of structural and regulatory regions at 22 positions. RESULTS Sequence-specific primer based PCR indicated that eight polymorphic loci IL-1α /-889, IL-1β/-511, IL-1R (pstI 1970), TGF-β/ code 10, TNF-α/-308, TNF-α/-238, IL-6/+565 and IL-10/-1082, out of 22 SNPs are significantly associated with sepsis morbidity and outcome. Theses SNPs might be used as risk determinants of the outcome. Patients with IL-10 (-1082A/A) genotypes were found significantly higher in post traumatic sepsis patients and had a significantly higher risk to developed sepsis complication (p < 0.05, OR = 0.86, C.I = 0.08-8.8).In case of TNF-α (-308) position, GA and GG genotype patients have a significantly lower risk of poor outcome (p < 0.05, OR = 0.25, C.I = 0.01-1.3) and (p < 0.05, OR = 0.22, C.I = 0.01-0.5) in comparison to AA genotype. In this study, two polymorphisms (IL-1β (-511) and IL-1R) were significantly associated with the development of MOF and mortality, where as IL-1α (-889) polymorphism associated with susceptibility for sepsis. The distribution of haplotypes of TGF-β and IL-6 were also associated with sepsis susceptibility and outcome. CONCLUSION In conclusion, we have found that the alternations in the genotype and allele frequency of IL-1β (-511C/T), TNF-α (-308 G/A), TNF-α (-238 G/A) and IL-10 (-1082 G/A) genes are associated with an higher risk of sepsis development in trauma patients and outcomes.
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Belopolskaya OB, Smelaya TV, Moroz VV, Golubev AM, Salnikova LE. Clinical associations of host genetic variations in the genes of cytokines in critically ill patients. Clin Exp Immunol 2015; 180:531-41. [PMID: 25619315 DOI: 10.1111/cei.12592] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/16/2015] [Indexed: 12/14/2022] Open
Abstract
Host genetic variations may influence a changing profile of biochemical markers and outcome in patients with trauma/injury. The objective of this study was to assess clinical associations of single nucleotide polymorphisms (SNPs) in the genes of cytokines in critically ill patients. A total of 430 patients were genotyped for SNPs in the genes of pro- (IL1B, IL6, IL8) and anti-inflammatory (IL4, IL10, IL13) cytokines. The main end-points were sepsis, mortality and adult respiratory distress syndrome (ARDS). We evaluated the dynamic levels of bilirubin, blood urea nitrogen, creatine kinase, creatinine and lactate dehydrogenase in five points of measurements (between 1 and 14 days after admission) and correlated them with SNPs. High-producing alleles of proinflammatory cytokines protected patients against sepsis (IL1B -511A and IL8 -251A) and mortality (IL1B -511A). High-producing alleles of anti-inflammatory cytokines IL4 -589T and IL13 431A (144Gln) were less frequent in ARDS patients. The carriers of IL6 -174C/C genotypes were prone to the increased levels of biochemical markers and acute kidney and liver insufficiency. Genotype-dependent differences in the levels of biochemical indicators gradually increased to a maximal value on the 14th day after admission. These findings suggest that genetic variability in pro- and anti-inflammatory cytokines may contribute to different clinical phenotypes in patients at high risk of critical illness.
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Affiliation(s)
- O B Belopolskaya
- N. I. Vavilov Institute of General Genetics, Russian Academy of Sciences, Moscow, Russia
| | - T V Smelaya
- V. A. Negovsky Research Institute of General Reanimatology, Russian Academy of Medical Sciences
| | - V V Moroz
- V. A. Negovsky Research Institute of General Reanimatology, Russian Academy of Medical Sciences
| | - A M Golubev
- V. A. Negovsky Research Institute of General Reanimatology, Russian Academy of Medical Sciences
| | - L E Salnikova
- N. I. Vavilov Institute of General Genetics, Russian Academy of Sciences, Moscow, Russia.,V. A. Negovsky Research Institute of General Reanimatology, Russian Academy of Medical Sciences
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24
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Chen H, Li N, Wan H, Cheng Q, Shi G, Feng Y. Associations of three well-characterized polymorphisms in the IL-6 and IL-10 genes with pneumonia: a meta-analysis. Sci Rep 2015; 5:8559. [PMID: 25708204 PMCID: PMC4338428 DOI: 10.1038/srep08559] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Accepted: 01/26/2015] [Indexed: 12/30/2022] Open
Abstract
Published data on the associations between three well-characterized polymorphisms in the interleukin 6 and 10 (IL-6 and IL-10) genes and the risk of pneumonia are inconclusive. A meta-analysis was performed to derive a more precise estimate. The electronic databases MEDLINE (Ovid) and PubMed were searched from the earliest possible year to May 2014. A total of 9 articles met the criteria, and these included 3460 patients with pneumonia and 3037 controls. The data were analyzed with RevMan software, and risk estimates are expressed as odds ratios (ORs) and 95% confidence intervals (95% CIs). Analyses of the full data set failed to identify any significant association of pneumonia risk with the IL-6 gene -174C allele (OR = 1.00; 95% CI: 0.98–1.03), the IL-10 gene -592C allele (OR = 1.20; 95% CI: 0.95–1.52), or the IL-10 gene -1082A allele (OR = 1.21; 95% CI: 0.99–1.49). In a subgroup analysis by pneumonia type, ethnicity, sample size and quality score, no significantly increased risk of pneumonia was found for individuals carrying the IL-6 gene -174C allele. There was a low probability of publication bias, as reflected by the fail-safe number. This meta-analysis suggests that there is no significantly increased risk of pneumonia associated with previously reported IL-6 and IL-10 polymorphisms.
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Affiliation(s)
- Hong Chen
- Department of Respiration, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Ning Li
- Department of Respiration, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Huanying Wan
- Department of Respiration, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Qijian Cheng
- Department of Respiration, Ruijin North Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Guochao Shi
- Department of Respiration, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yun Feng
- Department of Respiration, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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Aureli A, Sebastiani P, Del Beato T, Marimpietri AE, Graziani A, Sechi E, Di Loreto S. Involvement of IL-6 and IL-1 receptor antagonist on intellectual disability. Immunol Lett 2014; 162:124-31. [PMID: 25124963 DOI: 10.1016/j.imlet.2014.08.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Revised: 07/31/2014] [Accepted: 08/03/2014] [Indexed: 01/17/2023]
Abstract
Imbalances in the regulation of pro-inflammatory cytokines have been increasingly correlated with several neurodevelopmental disorders and their role in neuronal development is being investigated. To assess the possible influence of cytokines on the onset of intellectual disability (ID), we studied the polymorphisms of thirteen proinflammatory cytokine genes in 81 patients and 61 healthy controls. We demonstrated a significant association of interleukin-6 (IL-6) single-nucleotide polymorphism (SNP) (-174 G/C and nt565 G/A), and interleukin-1 receptor antagonist (IL-1RA) (Mspa-I 11100) SNP with ID. Moreover, the IL-6 SNPs is an unfavorable genetic predisposition for females. The evaluation of circulating levels of IL-6 and IL-1RA showed that the serum concentrations of IL-6 were significantly higher in ID patients than in controls. These data suggest that functional cytokine gene polymorphisms may influence the development of ID.
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Affiliation(s)
- A Aureli
- Institute of Translational Pharmacology (IFT) - National Council of Research (CNR), L'Aquila, Italy
| | - P Sebastiani
- Institute of Translational Pharmacology (IFT) - National Council of Research (CNR), L'Aquila, Italy
| | - T Del Beato
- Institute of Translational Pharmacology (IFT) - National Council of Research (CNR), L'Aquila, Italy
| | - A E Marimpietri
- Childhood and Adolescence Neuropsychiatric Clinic, University of L'Aquila, ASL n. 4, L'Aquila, Italy
| | - A Graziani
- Childhood and Adolescence Neuropsychiatric Clinic, University of L'Aquila, ASL n. 4, L'Aquila, Italy
| | - E Sechi
- Childhood and Adolescence Neuropsychiatric Clinic, University of L'Aquila, ASL n. 4, L'Aquila, Italy
| | - S Di Loreto
- Institute of Translational Pharmacology (IFT) - National Council of Research (CNR), L'Aquila, Italy.
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