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Chilunga FP, Appelman B, van Vugt M, Kalverda K, Smeele P, van Es J, Wiersinga WJ, Rostila M, Prins M, Stronks K, Norredam M, Agyemang C. Differences in incidence, nature of symptoms, and duration of long COVID among hospitalised migrant and non-migrant patients in the Netherlands: a retrospective cohort study. THE LANCET REGIONAL HEALTH. EUROPE 2023; 29:100630. [PMID: 37261215 PMCID: PMC10079482 DOI: 10.1016/j.lanepe.2023.100630] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 03/17/2023] [Accepted: 03/20/2023] [Indexed: 06/02/2023]
Abstract
Background Comprehensive data on long COVID across ethnic and migrant groups are lacking. We investigated incidence, nature of symptoms, clinical predictors, and duration of long COVID among COVID-19 hospitalised patients in the Netherlands by migration background (Dutch, Turkish, Moroccan, and Surinamese origin, Others). Methods We used COVID-19 admissions and follow up data (January 2021-July 2022) from Amsterdam University Medical Centers. We calculated long COVID incidence proportions per NICE guidelines by migration background and assessed for clinical predictors via robust Poisson regressions. We then examined associations between migration background and long COVID using robust Poisson regressions and adjusted for derived clinical predictors, and other biologically relevant factors. We also assessed long COVID symptom persistence at one-year post-discharge. Findings 1886 patients were included. 483 patients had long COVID (26%, 95% CI 24-28%) at 12 weeks post-discharge. Symptoms like dizziness, joint pain, insomnia, and headache varied by migration background. Clinical predictors of long COVID were female sex, hospital admission duration, intensive care unit admission, and receiving oxygen, or corticosteroid therapy. Long COVID risk was higher among patients with migration background than Dutch origin patients after adjustments for derived clinical predictors, age, smoking, vaccination status, comorbidities and remdesivir treatment. Only 14% of long COVID symptoms persisted at one-year post-discharge. Interpretation There are significant differences in occurrence, nature of symptoms, and duration of long COVID by migration background. Studies assessing the spectrum of functional limitation and access to post-COVID healthcare are needed to help plan for appropriate and accessible healthcare interventions. Funding The Amsterdam UMC COVID-19 biobank is supported by the Amsterdam UMC Corona Research Fund and the Talud Foundation (Stichting Talud). The current analyses were supported by the Novo Nordisk Foundation [NNF21OC0067528].
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Affiliation(s)
- Felix Patience Chilunga
- Department of Public and Occupational Health, Amsterdam Public Health, University of Amsterdam Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - Brent Appelman
- Center for Experimental and Molecular Medicine, Amsterdam University Medical Centers, Amsterdam Institute for Infection and Immunity (AII), University of Amsterdam, Amsterdam, The Netherlands
| | - Michele van Vugt
- Division of Infectious Diseases, Amsterdam University Medical Centers, Location AMC, Amsterdam Institute for Infection and Immunity (AII), University of Amsterdam, Amsterdam Public Health, Amsterdam, The Netherlands
| | - Kirsten Kalverda
- Department Pulmonary Medicine, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Patrick Smeele
- Department Pulmonary Medicine, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Josien van Es
- Department Pulmonary Medicine, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Willem Joost Wiersinga
- Center for Experimental and Molecular Medicine, Amsterdam University Medical Centers, Amsterdam Institute for Infection and Immunity (AII), University of Amsterdam, Amsterdam, The Netherlands
- Division of Infectious Diseases, Amsterdam University Medical Centers, Location AMC, Amsterdam Institute for Infection and Immunity (AII), University of Amsterdam, Amsterdam Public Health, Amsterdam, The Netherlands
| | - Mikael Rostila
- Department of Public Health Sciences, Stockholm University, Stockholm, Sweden
- Centre for Health Equity Studies, Stockholm University/Karolinska Institutet, Stockholm, Sweden
| | - Maria Prins
- Division of Infectious Diseases, Amsterdam University Medical Centers, Location AMC, Amsterdam Institute for Infection and Immunity (AII), University of Amsterdam, Amsterdam Public Health, Amsterdam, The Netherlands
- Department of Infectious Diseases, Public Health Service of Amsterdam (GGD), Amsterdam, The Netherlands
| | - Karien Stronks
- Department of Public and Occupational Health, Amsterdam Public Health, University of Amsterdam Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
- Centre for Urban Mental Health, University of Amsterdam, Amsterdam, The Netherlands
| | - Marie Norredam
- Section for Health Services Research, Department of Public Health, Research Centre for Migration, Ethnicity and Health (MESU), University of Copenhagen, Copenhagen, Denmark
- Department of Infectious Diseases, Copenhagen University Hospital, Amager and Hvidovre, University of Copenhagen, Copenhagen, Denmark
| | - Charles Agyemang
- Department of Public and Occupational Health, Amsterdam Public Health, University of Amsterdam Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Abuaf AF, Javed A, Bunting SR, Carroll TJ, Reder AT, Cipriani VP. Effectiveness of ocrelizumab on clinical and MRI outcome measures in multiple sclerosis across black and white cohorts: A single-center retrospective study. Mult Scler Relat Disord 2023; 71:104523. [PMID: 36773543 DOI: 10.1016/j.msard.2023.104523] [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: 11/14/2022] [Revised: 12/14/2022] [Accepted: 01/15/2023] [Indexed: 01/18/2023]
Abstract
OBJECTIVE To examine differences in the therapeutic response to ocrelizumab in multiple sclerosis (MS) patients who self-identified as either White or Black, assessed longitudinally by expanded disability status scale (EDSS) progression and MRI brain volume loss. METHODS MS subjects treated with ocrelizumab were retrospectively identified. Clinical data were available for 229 subjects (White 146; Black 83) and MRI data from for 48 subjects (White 31; Black 17). Outcome measures were changes in the EDSS and brain volume over time. EDSS were analyzed as raw scores, ambulatory (EDSS <5.0) vs. ambulatory with assistance (5.5 ≤ EDSS ≤ 6.5) status, and EDSS severity (< 3.0, 3.0-5.0, and > 5.5 ≤ 6.5). General linear mixed model was used for statistical analysis. FreeSurfer was used for volumetric analysis. RESULTS The Black cohort had overrepresentation of females (78% vs. 62%, p = 0.013), lower age (median, 45 (IQR 39-51) vs. 49 (38-58), p = 0.08), lower Vitamin D levels (33 (21-45) vs. 40 (29-52), p = 0.002), and higher EDSS (4 (2-6) vs. 2.5 (1-6), p = 0.019). There was no progression of EDSS scores over the 2-year observation period. The covariates with significant influence on the baseline EDSS scores were older age, race, longer disease duration, prior MS treatment, and lower vitamin D levels. No differences were observed between the racial groups over time in the cortical, thalamic, caudate, putamen, and brainstem gray matter volumes nor in the cortical thickness or total lesion volume. CONCLUSION In this real-world clinical and radiological study, ocrelizumab treatment was highly effective in stabilizing clinical and MRI measures of disease progression in Blacks and Whites, despite higher baseline disability in the Black cohort.
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Affiliation(s)
- Amanda Frisosky Abuaf
- Department of Neurology, The University of Wisconsin, 600 Highland Ave, Madison, WI, USA.
| | - Adil Javed
- Department of Neurology, The University of Chicago, Chicago, IL, USA
| | - Samuel R Bunting
- Department of Psychiatry and Behavioral Neuroscience, The University of Chicago, Chicago, IL, USA
| | - Timothy J Carroll
- Department of Radiology, The University of Chicago, Chicago, IL, USA
| | - Anthony T Reder
- Department of Neurology, The University of Chicago, Chicago, IL, USA
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Sentana-Lledo D, Sartor O, Balk SP, Einstein DJ. Immune mechanisms behind prostate cancer in men of African ancestry: A review. Prostate 2022; 82:883-893. [PMID: 35254710 PMCID: PMC9875381 DOI: 10.1002/pros.24333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 02/08/2022] [Accepted: 02/21/2022] [Indexed: 01/28/2023]
Abstract
BACKGROUND Men of African ancestry (AA) with prostate cancer suffer from worse outcomes. However, a recent analysis of patients treated with the dendritic cell vaccine sipuleucel-T for prostate cancer suggested that AA patients could have improved outcomes relative to whites. METHODS We conducted a focused literature review of Medline-indexed articles and clinical trials listed on clinicaltrials.gov. RESULTS We identify several studies pointing to enrichment of inflammatory cellular infiltrates and cytokine signaling among AA patients with prostate cancer. We outline potential genomic and transcriptomic alterations that may contribute to immunogenicity. Last, we investigate differences in host immunity and vaccine responsiveness that may be enhanced in AA patients. CONCLUSIONS AA patients with prostate cancer may be enriched for an immunogenic phenotype. Dedicated studies are needed to better understand the immune mechanisms that contribute to existing cancer disparities and test immune-based therapies in this population.
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Affiliation(s)
- Daniel Sentana-Lledo
- Division of Medical Oncology, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
| | - Oliver Sartor
- Tulane Cancer Center, Tulane University School of Medicine, New Orleans, Louisiana, USA
| | - Steven P. Balk
- Division of Medical Oncology, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
| | - David J. Einstein
- Division of Medical Oncology, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
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4
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Bonifácio LG, Melo M, Ayo CM, Assoni LCP, Olímpio LM, Nogueira MR, Spegiorin LCJF, Barbosa DMU, de Mattos LC, Pereira-Chioccola VL, Brandão CC. TNFα rs1799964 TT genotype may be a susceptibility factor for vertical transmission of Toxoplasma gondii and clinical signs in newborns from pregnant women with acute toxoplasmosis. Mol Biol Rep 2022; 49:4759-4768. [PMID: 35332413 DOI: 10.1007/s11033-022-07327-y] [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: 10/11/2021] [Accepted: 03/02/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND One of the main impacts of Toxoplasma gondii infection occurs during pregnancy and is related to the vertical transmission of the parasite (congenital toxoplasmosis), which can cause severe clinical outcomes and fetal death. During acute infection, in order to control the rapid replication of tachyzoites, different host immune response genes are activated, and these include cytokine-encoding genes. Considering that polymorphisms in cytokine genes may increase susceptibility to vertical transmission of T. gondii by determining the immune status of the pregnant woman, this study evaluated the influence of polymorphisms of tumor necrosis factor alpha (TNFα) rs1799964 (- 1031) and interleukin 1 beta (IL1β) rs16944 (- 511) genes on gestational toxoplasmosis and on the vertical transmission of the parasite and verified the allele and genotype frequency of these polymorphisms in pregnant patients whose respective newborn did or did not present clinical abnormalities suggestive of congenital toxoplasmosis. METHODS AND RESULTS A total of 204 pregnant patients with (n = 114) or without (n = 90) infection by T. gondii were enrolled. No associations were found involving the polymorphisms rs1799964 (- 1031) of the TNFα gene and rs16944 (- 511) of the IL1β gene with the increased chance of T. gondii infection during pregnancy. However, it was observed that the maternal TT genotype referring to the polymorphism of the TNFα gene seems to influence the vertical transmission of the parasite (P = 0.01; χ2 = 6.05) and the presence of clinical manifestation in newborns from pregnancies with acute toxoplasmosis (P = 0.007; χ2 = 9.68). CONCLUSION The TNFα rs1799964 TT genotype may act as a susceptibility factor for the vertical transmission of parasite and for the presence of clinical signs in newborns from pregnant women with acute toxoplasmosis.
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Affiliation(s)
- Lillian Gonzalez Bonifácio
- Laboratory of Immunogenetics, Department of Molecular Biology, Faculty of Medicine of São José do Rio Preto (FAMERP), Avenida Brigadeiro Faria Lima, 5416, São José do Rio Preto, SP, 15090-000, Brazil
| | - Mirele Melo
- Laboratory of Immunogenetics, Department of Molecular Biology, Faculty of Medicine of São José do Rio Preto (FAMERP), Avenida Brigadeiro Faria Lima, 5416, São José do Rio Preto, SP, 15090-000, Brazil
| | - Christiane Maria Ayo
- Laboratory of Immunogenetics, Department of Molecular Biology, Faculty of Medicine of São José do Rio Preto (FAMERP), Avenida Brigadeiro Faria Lima, 5416, São José do Rio Preto, SP, 15090-000, Brazil
| | - Letícia Carolina Paraboli Assoni
- Laboratory of Immunogenetics, Department of Molecular Biology, Faculty of Medicine of São José do Rio Preto (FAMERP), Avenida Brigadeiro Faria Lima, 5416, São José do Rio Preto, SP, 15090-000, Brazil
| | - Larissa Martins Olímpio
- Laboratory of Immunogenetics, Department of Molecular Biology, Faculty of Medicine of São José do Rio Preto (FAMERP), Avenida Brigadeiro Faria Lima, 5416, São José do Rio Preto, SP, 15090-000, Brazil
| | - Mariana Reis Nogueira
- Laboratory of Immunogenetics, Department of Molecular Biology, Faculty of Medicine of São José do Rio Preto (FAMERP), Avenida Brigadeiro Faria Lima, 5416, São José do Rio Preto, SP, 15090-000, Brazil
| | - Lígia Cosentino Junqueira Franco Spegiorin
- Laboratory of Immunogenetics, Department of Molecular Biology, Faculty of Medicine of São José do Rio Preto (FAMERP), Avenida Brigadeiro Faria Lima, 5416, São José do Rio Preto, SP, 15090-000, Brazil.,High Risk Pregnancy Outpatient Clinic of Hospital de Base, Regional Medical Faculty Foundation of São José do Rio Preto (HB-FUNFARME), São José do Rio Preto, SP, Brazil
| | - Deusenia Machado Ulisses Barbosa
- Laboratory of Immunogenetics, Department of Molecular Biology, Faculty of Medicine of São José do Rio Preto (FAMERP), Avenida Brigadeiro Faria Lima, 5416, São José do Rio Preto, SP, 15090-000, Brazil.,Pediatric Outpatient Clinic of Hospital de Base, Regional Medical Faculty Foundation of São José do Rio Preto (HB-FUNFARME), São José do Rio Preto, SP, Brazil
| | - Luiz Carlos de Mattos
- Laboratory of Immunogenetics, Department of Molecular Biology, Faculty of Medicine of São José do Rio Preto (FAMERP), Avenida Brigadeiro Faria Lima, 5416, São José do Rio Preto, SP, 15090-000, Brazil
| | | | - Cinara Cássia Brandão
- Laboratory of Immunogenetics, Department of Molecular Biology, Faculty of Medicine of São José do Rio Preto (FAMERP), Avenida Brigadeiro Faria Lima, 5416, São José do Rio Preto, SP, 15090-000, Brazil.
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5
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Influence of interleukin 17 A and 17 F polymorphisms in keratoconus. Mol Biol Rep 2021; 48:7165-7170. [PMID: 34554386 DOI: 10.1007/s11033-021-06708-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 09/13/2021] [Indexed: 01/13/2023]
Abstract
BACKGROUND Until a few years ago, keratoconus was defined as a noninflammatory degenerative disease. However, recent studies have shown that the altered balance between inflammatory cytokines, proteases, and protease inhibitors, as well as free radicals and oxidants, have a crucial role in the pathogenesis of this disease. The aim of this study is to investigate whether interleukin 17 A G197A (rs2275913) and interleukin 17 F T7488C (rs763780) polymorphisms are associated with keratoconus in patients from a population of the northwestern region of the State of São Paulo, Brazil. METHODS AND RESULTS 35 patients and 61 controls were enrolled. Genotyping of interleukin 17 A G197A and interleukin 17 F T7488C polymorphisms was carried out using the polymerase chain reaction-restriction fragment length polymorphism technique. Statistical analyses were conducted using the chi-square test, and an odds ratio with a 95% confidence interval was also calculated to evaluate the association between polymorphisms and disease. Evaluating interleukin 17 F T7488C, we found that the TT genotype is associated as a risk factor for keratoconus (P = 0.04; OR = 3.01; CI 1.11-8.14). As for evaluating interleukin 17 A G197A, the allele and genotype frequencies between patients and controls were compared and no statistically significant differences were found. CONCLUSIONS Our data showed that the interleukin 17 F T7488C polymorphisms may exert an influence in keratoconus.
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O'Neill WQ, Wasman J, Thuener J, Chatfield-Reed K, Lukesic L, Kyasram R, Shanahan J, Szelesety B, Vu B, Lavertu P, Rezaee R, Li S, Fowler N, Teknos TN, Pan Q. African Americans With p16+ and p16- Oropharyngeal Squamous Cell Carcinomas Have Distinctly Poor Treatment Outcomes Independent of Medical Care Access. JCO Oncol Pract 2021; 17:e695-e702. [PMID: 33974822 DOI: 10.1200/op.20.01105] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
PURPOSE Human papilloma virus-positive (HPV+) oropharyngeal squamous cell carcinoma (OPSCC), diagnosed with p16 immunohistochemistry, is associated with favorable prognosis; however, this connection was established using European American (EA)-skewed populations. The impact of p16/human papillomavirus status on outcomes in African American (AA) OPSCC patients remains to be settled. In this study, we determine the association between cancer disparity and p16 status in an OPSCC cohort controlling for time to treatment initiation (TTI), a surrogate for medical care access. MATERIALS AND METHODS We analyzed data from all patients diagnosed with OPSCC (N = 440) between 2010 and 2017, who received treatment at our academic medical center. Associations between age, disease stage, sex, p16 status, race, TTI, and overall survival (OS) were investigated. RESULTS TTI was similar between AA and EA OPSCC patients in our p16+ (P = .291) or p16- (P = .715) cohorts. Among p16+ OPSCC patients, the median OS was > 8.65 years for EA patients compared with 5.038 years (95% CI, 2.019 to 5.30; P = .003, log-rank) for AA patients. For p16- patients, the median OS was 5.74 years (95% CI, 3.32 to 6.99) for EA patients and 1.85 years (95% CI, 0.978 to 4.50; P = .03, log-rank) for AA patients. Multivariate Cox regression analysis showed that race was an independent prognostic biomarker and the most impactful co-variate for OS (hazard ratio, 0.40; 95% CI, 0.00 to 0.69; P = .001). CONCLUSION Our work showed that AAs with p16+ OPSCC have surprisingly poor clinical outcomes and are thus poor candidates for treatment de-escalation regimens. Caution should be exercised when extending clinical guidelines based on EA-majority studies to non-EA populations.
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Affiliation(s)
- W Quinn O'Neill
- Department of Otolaryngology-Head and Neck Surgery, University Hospitals Cleveland Medical Center, Case Western Reserve University School of Medicine, Cleveland, OH.,University Hospitals Seidman Cancer Center, Cleveland, OH
| | - Jay Wasman
- University Hospitals Seidman Cancer Center, Cleveland, OH.,Department of Pathology, University Hospitals Cleveland Medical Center, Case Western Reserve University School of Medicine, Cleveland, OH
| | - Jason Thuener
- Department of Otolaryngology-Head and Neck Surgery, University Hospitals Cleveland Medical Center, Case Western Reserve University School of Medicine, Cleveland, OH.,University Hospitals Seidman Cancer Center, Cleveland, OH
| | | | | | - Ravi Kyasram
- University Hospitals Seidman Cancer Center, Cleveland, OH
| | - John Shanahan
- University Hospitals Seidman Cancer Center, Cleveland, OH
| | - Blake Szelesety
- Department of Otolaryngology-Head and Neck Surgery, University Hospitals Cleveland Medical Center, Case Western Reserve University School of Medicine, Cleveland, OH
| | - Brandon Vu
- University Hospitals Seidman Cancer Center, Cleveland, OH
| | - Pierre Lavertu
- Department of Otolaryngology-Head and Neck Surgery, University Hospitals Cleveland Medical Center, Case Western Reserve University School of Medicine, Cleveland, OH.,University Hospitals Seidman Cancer Center, Cleveland, OH
| | - Rod Rezaee
- Department of Otolaryngology-Head and Neck Surgery, University Hospitals Cleveland Medical Center, Case Western Reserve University School of Medicine, Cleveland, OH.,University Hospitals Seidman Cancer Center, Cleveland, OH
| | - Shawn Li
- Department of Otolaryngology-Head and Neck Surgery, University Hospitals Cleveland Medical Center, Case Western Reserve University School of Medicine, Cleveland, OH.,University Hospitals Seidman Cancer Center, Cleveland, OH
| | - Nicole Fowler
- Department of Otolaryngology-Head and Neck Surgery, University Hospitals Cleveland Medical Center, Case Western Reserve University School of Medicine, Cleveland, OH.,University Hospitals Seidman Cancer Center, Cleveland, OH
| | - Theodoros N Teknos
- Department of Otolaryngology-Head and Neck Surgery, University Hospitals Cleveland Medical Center, Case Western Reserve University School of Medicine, Cleveland, OH.,University Hospitals Seidman Cancer Center, Cleveland, OH.,Case Comprehensive Cancer Center, Case Western Reserve University School of Medicine, Cleveland, OH
| | - Quintin Pan
- Department of Otolaryngology-Head and Neck Surgery, University Hospitals Cleveland Medical Center, Case Western Reserve University School of Medicine, Cleveland, OH.,University Hospitals Seidman Cancer Center, Cleveland, OH.,Case Comprehensive Cancer Center, Case Western Reserve University School of Medicine, Cleveland, OH
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7
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Association between interleukin 6 polymorphisms (rs1800796, rs1800795, rs2069837, rs17147230, and rs1800797) and hepatocellular carcinoma susceptibility: a meta-analysis. Clin Exp Hepatol 2020; 6:359-366. [PMID: 33511285 PMCID: PMC7816640 DOI: 10.5114/ceh.2020.102171] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 09/26/2020] [Indexed: 12/22/2022] Open
Abstract
Aim of the study We reported the association between interleukin 6 polymorphisms (rs1800796, rs1800795, rs2069837, rs17147230, and rs1800797) and hepatocellular carcinoma (HCC) susceptibility in a meta-analysis. Material and methods The studies were retrieved by searching the search terms in Scopus, PubMed, Web of Science, and Cochrane Library databases until June 2020. The analyses were done by RevMan 5.3 software using odds ratios (ORs) and 95% confidence intervals (CIs) and the analysis of publication bias and sensitivity analyses were performed by CMA 2.0 software. Results Searching through the databases, 316 records were retrieved and finally 13 studies were analyzed in the present meta-analysis. For the rs1800797 polymorphism, there was an elevated risk of AA genotype (OR = 2.68, p = 0.03) in HCC patients compared to healthy controls. Also, there was an elevated risk of AA (OR = 3.06, p = 0.04) and GA (OR = 2.61, p = 0.005) genotypes in HCC patients compared to liver cirrhosis patients. For rs2069837 polymorphism, there was an elevated risk of GG genotype (OR = 2.25, p = 0.01) in HCC patients compared to healthy controls. For rs17147230, T allele (OR = 1.31, p = 0.03) and TT genotype (OR = 1.83, p = 0.02) had elevated risks in HCC patients compared to healthy controls. Conclusions The present meta-analysis confirmed that there was an elevated risk of the AA and GA genotypes of rs1800797 polymorphism and the GG genotype of rs2069837, and the T allele and TT genotype of rs17147230 in HCC.
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8
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Ogony JW, Radisky DC, Ruddy KJ, Goodison S, Wickland DP, Egan KM, Knutson KL, Asmann YW, Sherman ME. Immune Responses and Risk of Triple-negative Breast Cancer: Implications for Higher Rates among African American Women. Cancer Prev Res (Phila) 2020; 13:901-910. [PMID: 32753376 PMCID: PMC9576802 DOI: 10.1158/1940-6207.capr-19-0562] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 04/22/2020] [Accepted: 07/28/2020] [Indexed: 11/16/2022]
Abstract
The etiology of triple-negative breast cancers (TNBC) is poorly understood. As many TNBCs develop prior to the initiation of breast cancer screening or at younger ages when the sensitivity of mammography is comparatively low, understanding the etiology of TNBCs is critical for discovering novel prevention approaches for these tumors. Furthermore, the higher incidence rate of estrogen receptor-negative breast cancers, and specifically, of TNBCs, among young African American women (AAW) versus white women is a source of racial disparities in breast cancer mortality. Whereas immune responses to TNBCs have received considerable attention in relation to prognosis and treatment, the concept that dysregulated immune responses may predispose to the development of TNBCs has received limited attention. We present evidence that dysregulated immune responses are critical in the pathogenesis of TNBCs, based on the molecular biology of the cancers and the mechanisms proposed to mediate TNBC risk factors. Furthermore, proposed risk factors for TNBC, especially childbearing without breastfeeding, high parity, and obesity, are more prevalent among AAW than white women. Limited data suggest genetic differences in immune responses by race, which favor a stronger Thr type 2 (Th2) immune response among AAW than white women. Th2 responses contribute to wound-healing processes, which are implicated in the pathogenesis of TNBCs. Accordingly, we review data on the link between immune responses and TNBC risk and consider whether the prevalence of risk factors that result in dysregulated immunity is higher among AAW than white women.
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Affiliation(s)
- Joshua W Ogony
- Health Sciences Research, Mayo Clinic College of Medicine, Jacksonville, Florida.,Cancer Biology, Mayo Clinic College of Medicine, Jacksonville, Florida
| | - Derek C Radisky
- Cancer Biology, Mayo Clinic College of Medicine, Jacksonville, Florida
| | - Kathryn J Ruddy
- Medical Oncology, Mayo Clinic College of Medicine, Rochester, Minnesota
| | - Steven Goodison
- Health Sciences Research, Mayo Clinic College of Medicine, Jacksonville, Florida
| | - Daniel P Wickland
- Health Sciences Research, Mayo Clinic College of Medicine, Jacksonville, Florida
| | - Kathleen M Egan
- Department of Epidemiology, Moffitt Cancer Center, Tampa, Florida
| | - Keith L Knutson
- Department of Immunology, Mayo Clinic College of Medicine, Jacksonville, Florida
| | - Yan W Asmann
- Health Sciences Research, Mayo Clinic College of Medicine, Jacksonville, Florida
| | - Mark E Sherman
- Health Sciences Research, Mayo Clinic College of Medicine, Jacksonville, Florida. .,Cancer Biology, Mayo Clinic College of Medicine, Jacksonville, Florida
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9
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Debnath M, Banerjee M, Berk M. Genetic gateways to COVID-19 infection: Implications for risk, severity, and outcomes. FASEB J 2020; 34:8787-8795. [PMID: 32525600 PMCID: PMC7300732 DOI: 10.1096/fj.202001115r] [Citation(s) in RCA: 84] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 05/10/2020] [Accepted: 05/12/2020] [Indexed: 01/05/2023]
Abstract
The dynamics, such as transmission, spatial epidemiology, and clinical course of Coronavirus Disease-2019 (COVID-19) have emerged as the most intriguing features and remain incompletely understood. The genetic landscape of an individual in particular, and a population in general seems to play a pivotal role in shaping the above COVID-19 dynamics. Considering the implications of host genes in the entry and replication of SARS-CoV-2 and in mounting the host immune response, it appears that multiple genes might be crucially involved in the above processes. Herein, we propose three potentially important genetic gateways to COVID-19 infection; these could explain at least in part the discrepancies of its spread, severity, and mortality. The variations within Angiotensin-converting enzyme 2 (ACE2) gene might constitute the first genetic gateway, influencing the spatial transmission dynamics of COVID-19. The Human Leukocyte Antigen locus, a master regulator of immunity against infection seems to be crucial in influencing susceptibility and severity of COVID-19 and can be the second genetic gateway. The genes regulating Toll-like receptor and complement pathways and subsequently cytokine storm induced exaggerated inflammatory pathways seem to underlie the severity of COVID-19, and such genes might represent the third genetic gateway. Host-pathogen interaction is a complex event and some additional genes might also contribute to the dynamics of COVID-19. Overall, these three genetic gateways proposed here might be the critical host determinants governing the risk, severity, and outcome of COVID-19. Genetic variations within these gateways could be key in influencing geographical discrepancies of COVID-19.
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Affiliation(s)
- Monojit Debnath
- Department of Human GeneticsNational Institute of Mental Health and NeurosciencesBangaloreIndia
| | - Moinak Banerjee
- Human Molecular Genetics LaboratoryRajiv Gandhi Centre for BiotechnologyThiruvanathapuramIndia
| | - Michael Berk
- IMPACT ‐ the Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon HealthDeakin UniversityGeelongVICAustralia
- Florey Institute for Neuroscience and Mental Health, Department of Psychiatry and Orygen, The National Centre of Excellence in Youth Mental HealthThe University of MelbourneMelbourneVICAustralia
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10
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Non-significant association between - 330 T/G polymorphism in interleukin-2 gene and chronic periodontitis: findings from a meta-analysis. BMC Oral Health 2020; 20:58. [PMID: 32075624 PMCID: PMC7031920 DOI: 10.1186/s12903-020-1034-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Accepted: 01/31/2020] [Indexed: 01/31/2023] Open
Abstract
BACKGROUND Chronic periodontitis (CP) is an immune-inflammatory disease that promotes tissue damage around the teeth. Among the several inflammatory mediators that orchestrate the periodontitis, there is the interleukin (IL)-2. Genetic variations in IL2 gene may be associated with the risk and severity of the disease. Contrary results are available in the literature with inconclusive findings and none meta-analysis to gather these data. METHODS A literature search was performed for studies published before June 11, 2019 in diverse scientific and educational databases. The data was extracted by two investigators and the statistical evaluation was performed by Review Manager statistical program with heterogeneity (I2) and Odds Ratio (OR) with 95% of Confidence Intervals (CI) calculations and a sensitive analysis to assess the accuracy of the obtained results. The publication bias was evaluated by Begg' and Egger's test with Comprehensive meta-analysis software. The value of P < 0.05 was considered as significant. RESULTS Five studies were identified in diverse ethnical groups with 1425 participants. The - 330 T/G polymorphism in IL2 gene was not significantly associated with CP in allelic evaluation (P > 0.05) as well as in the genotypic comparisons (P = 0.15). The Begg's test and the linear regression Egger's test did not show any evidence of publication bias risk (P > 0.05) which was corroborated by the absence of obvious asymmetry in Funnel plot graphic. CONCLUSIONS This meta-analysis showed a non-significant association between - 330 T/G polymorphism in IL2 gene and CP in any allelic evaluation.
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Granero Farias M, Andrade Dos Santos C, de Mello Vicente B, Habigzang M, de Oliveira da Silva P, Emerim Lemos N, Dieter C, Paz A, Esteves Daudt L. The effects of gene polymorphisms on susceptibility to acute GVHD and survival of allogeneic HSCT recipients: IL-10 gene polymorphisms as a more accessible target to predict prognosis. Hum Immunol 2019; 81:18-25. [PMID: 31889553 DOI: 10.1016/j.humimm.2019.12.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 11/28/2019] [Accepted: 12/05/2019] [Indexed: 12/30/2022]
Abstract
Allogeneic hematopoietic stem cell transplantation (allo-HSCT) is a therapeutic modality commonly used to treat hematological and immunological disorders. Among the main complications of allo-HSCT is the acute graft-versus-host disease (a-GVHD), a condition which accounts for a high incidence of mortality. Several genes encoding inflammatory mediators may present polymorphisms, which have been implicated in the risk of developing a-GVHD. In our study, we investigated the association between genotypes of cytokine-encoding genes and the incidence and severity of a-GVHD and survival of HSCT recipients. No statistically significant association was found between IL and 6-174 G/C, INF-γ + 874 T/A, TNF-α -238 A/G, -308 A/G and IL-10-819C/T, -592 A/C polymorphisms and the presence or severity of a-GVHD. A higher risk of a-GVHD was associated with the IL-10-1082 GG genotype compared to the AA + AG genotypes of recipients and donors. The IL-10-1082 genotype can be used as a prognostic determinant to predict which HSCT recipient will be more responsive to the transplant. Thus, cytokine gene assays may be useful in the individualization of prophylactic regimens and for an appropriate selection of immunosuppressants based on the HSCT recipient's responsiveness.
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Affiliation(s)
- Mariela Granero Farias
- Graduate Program in Child and Adolescent Health, Federal University of Rio Grande, do Sul/UFRGS, Brazil; Hospital de Clínicas de Porto Alegre/HCPA, Brazil.
| | | | | | | | | | | | | | | | - Liane Esteves Daudt
- Graduate Program in Child and Adolescent Health, Federal University of Rio Grande, do Sul/UFRGS, Brazil; Hospital de Clínicas de Porto Alegre/HCPA, Brazil; Federal University of Rio Grande do Sul/UFRGS, Brazil
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King Thomas J, Mir H, Kapur N, Singh S. Racial Differences in Immunological Landscape Modifiers Contributing to Disparity in Prostate Cancer. Cancers (Basel) 2019; 11:cancers11121857. [PMID: 31769418 PMCID: PMC6966521 DOI: 10.3390/cancers11121857] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 11/13/2019] [Accepted: 11/15/2019] [Indexed: 12/20/2022] Open
Abstract
Prostate cancer affects African Americans disproportionately by exhibiting greater incidence, rapid disease progression, and higher mortality when compared to their Caucasian counterparts. Additionally, standard treatment interventions do not achieve similar outcome in African Americans compared to Caucasian Americans, indicating differences in host factors contributing to racial disparity. African Americans have allelic variants and hyper-expression of genes that often lead to an immunosuppressive tumor microenvironment, possibly contributing to more aggressive tumors and poorer disease and therapeutic outcomes than Caucasians. In this review, we have discussed race-specific differences in external factors impacting internal milieu, which modify immunological topography as well as contribute to disparity in prostate cancer.
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Affiliation(s)
- Jeronay King Thomas
- Department of Microbiology, Biochemistry and Immunology, Morehouse School of Medicine, Atlanta, GA 30310, USA; (J.K.T.); (H.M.); (N.K.)
- Cancer Health Equity Institute, Morehouse School of Medicine, Atlanta, GA 30310, USA
| | - Hina Mir
- Department of Microbiology, Biochemistry and Immunology, Morehouse School of Medicine, Atlanta, GA 30310, USA; (J.K.T.); (H.M.); (N.K.)
- Cancer Health Equity Institute, Morehouse School of Medicine, Atlanta, GA 30310, USA
| | - Neeraj Kapur
- Department of Microbiology, Biochemistry and Immunology, Morehouse School of Medicine, Atlanta, GA 30310, USA; (J.K.T.); (H.M.); (N.K.)
- Cancer Health Equity Institute, Morehouse School of Medicine, Atlanta, GA 30310, USA
| | - Shailesh Singh
- Department of Microbiology, Biochemistry and Immunology, Morehouse School of Medicine, Atlanta, GA 30310, USA; (J.K.T.); (H.M.); (N.K.)
- Cancer Health Equity Institute, Morehouse School of Medicine, Atlanta, GA 30310, USA
- Correspondence: ; Tel.: +1-404-756-5718; Fax: +1-404-752-1179
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Distinct inflammatory mediator patterns in young black and white adults: The African-predict study. Cytokine 2019; 126:154894. [PMID: 31670005 DOI: 10.1016/j.cyto.2019.154894] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 10/01/2019] [Accepted: 10/17/2019] [Indexed: 12/20/2022]
Abstract
OBJECTIVE Inflammatory mediators have been implicated in the early stages of cardiovascular disease development, including hypertension. Since global reports reflect a higher hypertension prevalence in black than white populations, we hypothesise the involvement of specific inflammatory mediators. We therefore compared a detailed range of 22 inflammatory mediators between young black and white adults, and determined the relationship with blood pressure. APPROACH AND RESULTS We included 1197 adults (20-30 years; 50% black; 52% female) with detailed ambulatory blood pressures. Blood samples were analysed for 22 inflammatory mediators. For pro-inflammatory mediators, the black adults had higher C-reactive protein, interferon-inducible T-cell alpha chemoattractant, macrophage inflammatory protein 3 alpha (all p ≤ 0.008), but lower interferon-gamma, interleukin (IL)-1β, IL-8, IL-12, IL-17A, and tumour necrosis factor alpha (all p ≤ 0.048). For anti-inflammatory mediators the black group consistently had lower levels (IL-5, IL-10 and IL-13 (all p ≤ 0.012)), resulting in generally higher pro-to-anti-inflammatory ratios in black than white adults (p ≤ 0.001). In mediators with pro- and anti-inflammatory functions, the black group had lower granulocyte-macrophage colony-stimulating factor and IL-6 (both p ≤ 0.010). These patterns were confirmed after adjustment for age, sex and waist circumference, or when stratifying by hypertensive status, sex and socio-economic status. Multi-variable adjusted regression analyses and factor analysis yielded no relationship between inflammatory mediators and blood pressure in this young healthy population. CONCLUSIONS Black and white ethnic groups each consistently presented with unique inflammatory mediator patterns regardless of blood pressure, sex or social class. No association with blood pressure was seen in either of the groups.
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STAT3 polymorphisms and IL-6 polymorphism are associated with the risk of basal cell carcinoma in patients from northern Poland. Arch Dermatol Res 2019; 311:697-704. [PMID: 31342143 PMCID: PMC6787107 DOI: 10.1007/s00403-019-01952-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2018] [Revised: 06/24/2019] [Accepted: 07/13/2019] [Indexed: 01/25/2023]
Abstract
Basal cell carcinoma (BCC) environment consists of stromal and inflammatory cells which produce variety of cytokines, chemokines and growth factors that may affect tumor behavior. One of the cytokines suggested to be involved in the pathogenesis of BCC is IL-6, which is the upstream element of IL-6/JAK/STAT3 pathway. The correlation between polymorphisms of the genes related to this pathway and cancer risk/prognosis have been previously investigated in several neoplasia, but available data concerning BCC are scarce. In the present study, rs1800795 (-174 G/C) IL-6 gene polymorphism and two polymorphisms in the STAT3 gene, namely rs2293152 (intron 11, C/G) and rs4796793 (-1697, C/G) were assessed in relation to the BCC risk and clinical course. Additionally, IL-6 serum level was assessed in relation to IL-6 genotype and clinical variables. The study included 254 unrelated patients with BCC and of mean age 70.39 ± 11.43 (69.83 ± 12.32 women, 71.03 ± 10.31 men) and 198 healthy, unrelated age- and sex-matched volunteers. IL-6 and STAT3 polymorphisms were analyzed using polymerase chain reaction with sequence-specific primers (SSP-PCR). Serum concentration of IL-6 was measured using the ELISA test. We have found that the presence of C allele in rs1800795 IL-6 gene polymorphism was associated with increased risk of BCC (aOR 1.86; 95% CI 1.22–2.84; p = 0.004). The presence of CC genotype in STAT3 rs2293152 polymorphism was associated with increased BCC risk in recessive model analysis (aOR 3.94; 95% CI 1.59–9.77; p = 0.003). In contrast, the presence of GC genotype in overdominant model was associated with decreased risk of BCC (aOR = 0.24; 95% CI 0.12–0.49; p < 0.0001). The presence of C allele in STAT3 rs2293152 polymorphism was associated with increased risk of BCC (aOR 1.31; 95% CI 1.01–1.69; p = 0.04). The presence of GG genotype in STAT3 rs4796793 polymorphism was associated with increased BCC risk in recessive model analysis (aOR 3.66; 95% CI 1.33–10.10; p = 0.012). The presence of G allele in STAT3 rs4796793 polymorphism was associated with increased risk of BCC (aOR 1.59; 95% CI 1.01–2.49; p = 0.04). IL-6 serum level positively correlated with the tumor size.
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Rappoport N, Simon AJ, Amariglio N, Rechavi G. The Duffy antigen receptor for chemokines, ACKR1,- 'Jeanne DARC' of benign neutropenia. Br J Haematol 2018; 184:497-507. [PMID: 30592023 DOI: 10.1111/bjh.15730] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Benign neutropenia, observed in different ethnic groups, is the most common form of neutropenia worldwide. A specific single nucleotide polymorphism, rs2814778, located at the promoter of the ACKR1 (previously termed DARC) gene, which disrupts a binding site for the GATA1 erythroid transcription factor, resulting in a ACKR1-null phenotype, was found to serve as a predictor of low white blood cell and neutrophil counts in African-Americans and Yemenite Jews. Individuals with benign neutropenia due to the ACKR1-null allele have been found to have an increased susceptibility to human immunodeficiency virus infection and, on the other hand, a protective effect against malaria. The associated protective effect may explain the spread of the ACKR1-null allele by natural selection. The reviewed relationships between ACKR1 polymorphism and various pathological states may have important clinical implications to individuals with and without benign neutropenia. Potential mechanisms for ACKR1 (previously termed DARC) modulation during neutrophil recruitment to inflammation, and chemokine bioavailability in the circulation and in local tissue are reviewed and discussed.
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Affiliation(s)
- Naama Rappoport
- Cancer Research Centre, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Amos J Simon
- Cancer Research Centre, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.,Institute of Haematology, Sheba Medical Centre, Tel Hashomer, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Ninette Amariglio
- Cancer Research Centre, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.,Institute of Haematology, Sheba Medical Centre, Tel Hashomer, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.,Mina and Everard Goodman Faculty of Life Sciences, Bar Ilan University, Ramat-Gan, Israel
| | - Gideon Rechavi
- Cancer Research Centre, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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Fleischman DA, Arfanakis K, Leurgans S, Keating SM, Lamar M, Bennett DA, Adeyemi OM, Barnes LL. Neopterin is associated with hippocampal subfield volumes and cognition in HIV. NEUROLOGY-NEUROIMMUNOLOGY & NEUROINFLAMMATION 2018; 5:e467. [PMID: 29904644 PMCID: PMC5999345 DOI: 10.1212/nxi.0000000000000467] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Accepted: 04/04/2018] [Indexed: 11/27/2022]
Abstract
Objective HIV infection sets off an immediate immune response and inflammatory cascade that can lead to neuronal injury and cognitive impairment, but the relationship between immune markers, regional brain volumes, and cognition remains understudied in HIV-infected adults. Methods Cross-sectional associations were examined between serum immune markers of activation (neopterin) and inflammation (interleukin [IL]-1β, IL-6, tumor necrosis factor alpha, and C-reactive protein) with regional brain volumes (cortical, subcortical, total gray matter, hippocampus, and subfields) and cognition in 66 HIV-infected, virally suppressed, adults who underwent 3.0-T MRI as part of the Research Core of the Rush Center of Excellence on Disparities in HIV and Aging. Immune markers were assayed from frozen plasma, values were entered into linear regression models as predictors of regional brain volumes, and interactive effects of immune response and regional brain volumes on cognition were examined. Results No inflammatory marker was associated with any regional brain volume. Higher neopterin level was associated with lower total hippocampal, presubiculum, and cornu ammonis (CA) subfield volumes. Higher neopterin level and lower total hippocampal volume were independently associated with lower episodic memory, and neopterin level fully mediated the effect of hippocampal atrophy on episodic memory. Higher neopterin levels were associated with lower presubiculum, CA1, and CA4/dentate volumes and lower semantic memory, working memory, and global cognition. Conclusion Immune activation in response to HIV infection, measured by neopterin, has a deleterious and targeted effect on regional brain structure, which can be visualized with clinically available MRI measures of hippocampus and its subfields, and this effect is associated with lower cognitive function.
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Affiliation(s)
- Debra A Fleischman
- Rush Alzheimer's Disease Center (D.A.F., K.A., S.L., M.L., D.A.B., L.L.B.), Rush University Medical Center; the Department of Neurological Sciences (D.A.F., S.L., M.L., D.A.B., L.L.B.), the Department of Behavioral Sciences (D.A.F., M.L., L.L.B.), the Department of Preventive Medicine (S.L.), the Department of Diagnostic Radiology and Nuclear Medicine (K.A.), Rush University Medical Center; Ruth M. Rothstein CORE Center (O.M.A.); the Biomedical Engineering (K.A.), Illinois Institute of Technology, Chicago; the Blood Systems Research Institute (S.M.K.), San Francisco, CA; and the University of California at San Francisco (S.M.K.), Laboratory Medicine
| | - Konstantinos Arfanakis
- Rush Alzheimer's Disease Center (D.A.F., K.A., S.L., M.L., D.A.B., L.L.B.), Rush University Medical Center; the Department of Neurological Sciences (D.A.F., S.L., M.L., D.A.B., L.L.B.), the Department of Behavioral Sciences (D.A.F., M.L., L.L.B.), the Department of Preventive Medicine (S.L.), the Department of Diagnostic Radiology and Nuclear Medicine (K.A.), Rush University Medical Center; Ruth M. Rothstein CORE Center (O.M.A.); the Biomedical Engineering (K.A.), Illinois Institute of Technology, Chicago; the Blood Systems Research Institute (S.M.K.), San Francisco, CA; and the University of California at San Francisco (S.M.K.), Laboratory Medicine
| | - Sue Leurgans
- Rush Alzheimer's Disease Center (D.A.F., K.A., S.L., M.L., D.A.B., L.L.B.), Rush University Medical Center; the Department of Neurological Sciences (D.A.F., S.L., M.L., D.A.B., L.L.B.), the Department of Behavioral Sciences (D.A.F., M.L., L.L.B.), the Department of Preventive Medicine (S.L.), the Department of Diagnostic Radiology and Nuclear Medicine (K.A.), Rush University Medical Center; Ruth M. Rothstein CORE Center (O.M.A.); the Biomedical Engineering (K.A.), Illinois Institute of Technology, Chicago; the Blood Systems Research Institute (S.M.K.), San Francisco, CA; and the University of California at San Francisco (S.M.K.), Laboratory Medicine
| | - Sheila M Keating
- Rush Alzheimer's Disease Center (D.A.F., K.A., S.L., M.L., D.A.B., L.L.B.), Rush University Medical Center; the Department of Neurological Sciences (D.A.F., S.L., M.L., D.A.B., L.L.B.), the Department of Behavioral Sciences (D.A.F., M.L., L.L.B.), the Department of Preventive Medicine (S.L.), the Department of Diagnostic Radiology and Nuclear Medicine (K.A.), Rush University Medical Center; Ruth M. Rothstein CORE Center (O.M.A.); the Biomedical Engineering (K.A.), Illinois Institute of Technology, Chicago; the Blood Systems Research Institute (S.M.K.), San Francisco, CA; and the University of California at San Francisco (S.M.K.), Laboratory Medicine
| | - Melissa Lamar
- Rush Alzheimer's Disease Center (D.A.F., K.A., S.L., M.L., D.A.B., L.L.B.), Rush University Medical Center; the Department of Neurological Sciences (D.A.F., S.L., M.L., D.A.B., L.L.B.), the Department of Behavioral Sciences (D.A.F., M.L., L.L.B.), the Department of Preventive Medicine (S.L.), the Department of Diagnostic Radiology and Nuclear Medicine (K.A.), Rush University Medical Center; Ruth M. Rothstein CORE Center (O.M.A.); the Biomedical Engineering (K.A.), Illinois Institute of Technology, Chicago; the Blood Systems Research Institute (S.M.K.), San Francisco, CA; and the University of California at San Francisco (S.M.K.), Laboratory Medicine
| | - David A Bennett
- Rush Alzheimer's Disease Center (D.A.F., K.A., S.L., M.L., D.A.B., L.L.B.), Rush University Medical Center; the Department of Neurological Sciences (D.A.F., S.L., M.L., D.A.B., L.L.B.), the Department of Behavioral Sciences (D.A.F., M.L., L.L.B.), the Department of Preventive Medicine (S.L.), the Department of Diagnostic Radiology and Nuclear Medicine (K.A.), Rush University Medical Center; Ruth M. Rothstein CORE Center (O.M.A.); the Biomedical Engineering (K.A.), Illinois Institute of Technology, Chicago; the Blood Systems Research Institute (S.M.K.), San Francisco, CA; and the University of California at San Francisco (S.M.K.), Laboratory Medicine
| | - Oluwatoyin M Adeyemi
- Rush Alzheimer's Disease Center (D.A.F., K.A., S.L., M.L., D.A.B., L.L.B.), Rush University Medical Center; the Department of Neurological Sciences (D.A.F., S.L., M.L., D.A.B., L.L.B.), the Department of Behavioral Sciences (D.A.F., M.L., L.L.B.), the Department of Preventive Medicine (S.L.), the Department of Diagnostic Radiology and Nuclear Medicine (K.A.), Rush University Medical Center; Ruth M. Rothstein CORE Center (O.M.A.); the Biomedical Engineering (K.A.), Illinois Institute of Technology, Chicago; the Blood Systems Research Institute (S.M.K.), San Francisco, CA; and the University of California at San Francisco (S.M.K.), Laboratory Medicine
| | - Lisa L Barnes
- Rush Alzheimer's Disease Center (D.A.F., K.A., S.L., M.L., D.A.B., L.L.B.), Rush University Medical Center; the Department of Neurological Sciences (D.A.F., S.L., M.L., D.A.B., L.L.B.), the Department of Behavioral Sciences (D.A.F., M.L., L.L.B.), the Department of Preventive Medicine (S.L.), the Department of Diagnostic Radiology and Nuclear Medicine (K.A.), Rush University Medical Center; Ruth M. Rothstein CORE Center (O.M.A.); the Biomedical Engineering (K.A.), Illinois Institute of Technology, Chicago; the Blood Systems Research Institute (S.M.K.), San Francisco, CA; and the University of California at San Francisco (S.M.K.), Laboratory Medicine
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Feng Y, Tang Y, Zhou H, Xie K. A meta-analysis on correlation between interleukin-6 -174G/C polymorphism and end-stage renal disease. Ren Fail 2017; 39:350-356. [PMID: 28164733 PMCID: PMC6014497 DOI: 10.1080/0886022x.2017.1281146] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Background: The level of interleukin-6 (IL-6) and its gene polymorphism are associated with the end-stage renal disease (ESRD) and the related complications. This study aimed to investigate the correction between IL-6 -174G/C polymorphism and ESRD by meta-analysis. Methods: Using the databases including PubMed, Embase, Cochrane library, CNKI, and CBM, the data of case-control studies on correlation between IL-6 -174G/C polymorphism and ESRD from database establishment to January 2016 were collected. According to inclusion and exclusion criteria, the quality of literatures was evaluated. The relevant research data were extracted, followed by meta-analysis using Revman 5.3 software (London, UK). The combined odds ratio (OR) and 95% confidence interval (95%CI) of each genetic model were calculated, and the publication bias data was assessed using the Stata 12.0 software (College Station, TX). Results: A total of five literatures were included, with 1199 cases in case group and 1089 cases in control group. Meta-analysis showed that, there was no significant correlation between each genetic model of IL-6 -174G/C polymorphism and ESRD [(C versus G): OR = 1.36, 95%CI (0.69, 2.66), p = .38; (CC + GC versus GG): OR = 1.28, 95%CI (0.58, 2.82), p = .54; (CC versus GG + GC): OR = 1.71, 95%CI (0.82, 3.54), p = .15; (CC versus GG): OR = 1.74, 95%CI (0.76, 3.99), p = .19; (GC versus GG): OR = 1.18, 95%CI (0.55, 2.54), p = .67]. The race subgroup analysis showed that, there was no significant correlation between each genetic model of IL-6 -174G/C polymorphism and ESRD in the Caucasians (p > .05). Conclusion: IL-6 -174G/C polymorphism has no significant correlation with the susceptibility risk of ESRD, and may not be a risk factor for ESRD.
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Affiliation(s)
- Ye Feng
- a Department of Blood Purification , The First Affiliated Hospital of Guangxi Medical University , Nanning , Guangxi , China
| | - Yan Tang
- a Department of Blood Purification , The First Affiliated Hospital of Guangxi Medical University , Nanning , Guangxi , China
| | - Hongwei Zhou
- a Department of Blood Purification , The First Affiliated Hospital of Guangxi Medical University , Nanning , Guangxi , China
| | - Kaiqing Xie
- a Department of Blood Purification , The First Affiliated Hospital of Guangxi Medical University , Nanning , Guangxi , China
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Influence of the IL6 − 147C/G polymorphism on clinical characteristics of chronic hepatitis C in Brazilian patients. GENE REPORTS 2017. [DOI: 10.1016/j.genrep.2017.05.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Tucker P, Pfefferbaum B, Nitiéma P, Khan Q, Aggarwal R, Walling EE. Possible link of Interleukin-6 and Interleukin-2 with psychiatric diagnosis, ethnicity, disaster or BMI. Cytokine 2017; 96:247-252. [PMID: 28486207 DOI: 10.1016/j.cyto.2017.04.025] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Revised: 04/08/2017] [Accepted: 04/26/2017] [Indexed: 10/19/2022]
Abstract
BACKGROUND Cytokines are of increasing interest as markers for stress responses, mental disorders and general health. We assessed associations of two cytokines with several factors among relocated hurricane survivors and controls. METHODS We examined 40 relocated hurricane survivors and 40 demographically matched (frequency matching) Oklahoma controls to assess relationships of Interleukin-2 (IL-2) and Interleukin-6 (IL-6) with psychiatric diagnoses (SCID-IV), demographic variables, hurricane exposure and body mass index (BMI). Participants were predominantly African American (n=70, 87.5%). RESULTS Relocated Katrina survivors had higher proportions of current PTSD, major depression and psychiatric diagnoses than controls. Unexpectedly, exposure to Katrina with relocation was not by itself associated with differences in IL-2 or IL-6 levels. The mean IL-2 level was significantly higher in African American participants than other ethnicities (8 Caucasians, 2 Asians) and in those with a current psychiatric disorder. The mean IL-6 level was higher in females than males and in participants with any current psychiatric diagnosis. IL-6 level also correlated positively with participants' BMI. CONCLUSIONS Results suggest that cytokines studied were influenced non-specifically by the presence of a mental disorder, and by demographic variables of gender, ethnicity and BMI. Implications of these findings are discussed, as well as possible long-term impact of the identified interleukin differences on immunologic, inflammatory, neuropsychiatric and other systems.
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Affiliation(s)
- Phebe Tucker
- Dept. of Psychiatry, University of Oklahoma Health Sciences Center, WP 3440, 920 Stanton L Young Blvd., Oklahoma City, OK, United States.
| | - Betty Pfefferbaum
- Dept. of Psychiatry, University of Oklahoma Health Sciences Center, WP 3440, 920 Stanton L Young Blvd., Oklahoma City, OK, United States.
| | - Pascal Nitiéma
- Dept. of Psychiatry, University of Oklahoma Health Sciences Center, WP 3440, 920 Stanton L Young Blvd., Oklahoma City, OK, United States; Biostatistician, Management Information Systems, University of Oklahoma, Norman OK, United States.
| | - Qaiser Khan
- Dept. of Psychiatry, University of Oklahoma Health Sciences Center, WP 3440, 920 Stanton L Young Blvd., Oklahoma City, OK, United States.
| | - Ruchi Aggarwal
- Psychiatry & Behavioral Sciences, Baylor College of Medicine, 2016 Baylor, College of Medicine®; One Baylor Plaza, Houston, TX 77030, United States.
| | - Erin E Walling
- Dept. of Psychiatry, University of Oklahoma Health Sciences Center, WP 3440, 920 Stanton L Young Blvd., Oklahoma City, OK, United States.
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Wells JCK. Body composition and susceptibility to type 2 diabetes: an evolutionary perspective. Eur J Clin Nutr 2017; 71:881-889. [PMID: 28352118 DOI: 10.1038/ejcn.2017.31] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Revised: 01/27/2017] [Accepted: 01/31/2017] [Indexed: 12/13/2022]
Abstract
Type 2 diabetes is rapidly increasing in prevalence worldwide, in concert with epidemics of obesity and sedentary behavior that are themselves tracking economic development. Within this broad pattern, susceptibility to diabetes varies substantially in association with ethnicity and nutritional exposures through the life-course. An evolutionary perspective may help understand why humans are so prone to this condition in modern environments, and why this risk is unequally distributed. A simple conceptual model treats diabetes risk as the function of two interacting traits, namely 'metabolic capacity' which promotes glucose homeostasis, and 'metabolic load' which challenges glucose homoeostasis. This conceptual model helps understand how long-term and more recent trends in body composition can be considered to have shaped variability in diabetes risk. Hominin evolution appears to have continued a broader trend evident in primates, towards lower levels of muscularity. In addition, hominins developed higher levels of body fatness, especially in females in relative terms. These traits most likely evolved as part of a broader reorganization of human life history traits in response to growing levels of ecological instability, enabling both survival during tough periods and reproduction during bountiful periods. Since the emergence of Homo sapiens, populations have diverged in body composition in association with geographical setting and local ecological stresses. These long-term trends in both metabolic capacity and adiposity help explain the overall susceptibility of humans to diabetes in ways that are similar to, and exacerbated by, the effects of nutritional exposures during the life-course.
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Affiliation(s)
- J C K Wells
- Childhood Nutrition Research Centre, UCL Great Ormond Street Institute of Child Health, London, UK
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21
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Karakaş NM, Ecevit AN, Yalçın Y, Özdemir B, Verdi H, Tekindal MA, Özbek NY, Tarcan A, Ataç FB, Haberal A. Effect of maternal and neonatal interleukin-6 - 174 G/C polymorphism on preterm birth and neonatal morbidity. J Matern Fetal Neonatal Med 2017; 31:1009-1015. [PMID: 28279124 DOI: 10.1080/14767058.2017.1304911] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
OBJECTIVE The aim of this study was to analyze maternal and neonatal interleukin 6 (IL-6) (-174 G/C) polymorphism and to determine effect on preterm birth and neonatal morbidity. STUDY DESIGN One hundred and sixty-four mothers (100 term births, 64 preterm births) and 183 newborn infants who were 100 healthy term and 83 preterm babies followed in newborn intensive care units were evaluated. PCR-RFLP was performed for IL-6 (-174 G/C) genotyping. RESULTS The rate of GG genotype in mothers of term and preterm infants were 54% (n = 54/100), 75% (n = 48/64), respectively (p > .05) and the rate of GC + CC genotype was 46% (n = 46/100) and 25% (n = 16/64) in mothers giving term and preterm birth (PTB), respectively (p < .05). Additionally, the rate of GG genotype was 65% (n = 65/100) and 81.9% (n = 68/83) in term infants and preterm infants, respectively. GC + CC genotype was 35% (n = 35/100) in term infants and 18.1% (n = 15/83) in preterm infants (p < .05). The effect of IL-6 (-174) GC + CC genotype on PTB was statistically significant. CONCLUSION The IL-6 174 G/C gene polymorphism was significantly different between mothers who were giving to term and preterm birth. The presence of polymorphism is protective against preterm birth and was not associated with neonatal outcome.
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Affiliation(s)
- N Mutlu Karakaş
- a Department of Pediatrics , Faculty of Medicine, Başkent University , Ankara , Turkey
| | - Ayse N Ecevit
- b Department of Neonatology , Faculty of Medicine, Başkent University , Ankara , Turkey
| | - Yaprak Yalçın
- c Department of Medical Biology , Faculty of Medicine, Başkent University , Ankara , Turkey
| | - Beril Özdemir
- a Department of Pediatrics , Faculty of Medicine, Başkent University , Ankara , Turkey
| | - Hasibe Verdi
- c Department of Medical Biology , Faculty of Medicine, Başkent University , Ankara , Turkey
| | - M Ağah Tekindal
- d Department of Biostatistic , Faculty of Medicine, Başkent University , Ankara , Turkey
| | | | - Aylin Tarcan
- b Department of Neonatology , Faculty of Medicine, Başkent University , Ankara , Turkey
| | - Fatma B Ataç
- c Department of Medical Biology , Faculty of Medicine, Başkent University , Ankara , Turkey
| | - Ali Haberal
- f Department of Obstetrics and Gynecology , Faculty of Medicine, Başkent University , Ankara , Turkey
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Huang X, Chen F, Zhao J, Wang D, Jing S, Li H, Meng C. Interleukin 6 (IL-6) and IL-10 Promoter Region Polymorphisms Are Associated with Risk of Lumbar Disc Herniation in a Northern Chinese Han Population. Genet Test Mol Biomarkers 2016; 21:17-23. [PMID: 27828714 DOI: 10.1089/gtmb.2016.0189] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
AIM This study assessed the association of single-nucleotide polymorphisms (SNPs) in the proinflammatory cytokines interleukin 6 (IL-6) and IL-10 with the risk of lumbar disc herniation in a Chinese Han population. METHODS We collected blood samples from 267 patients with lumbar disc herniation (case group) and 300 normals (control group) and performed analyses of the IL-6 572C/G and 174G/C SNPs as well as the IL-10 592A/C and 1082G/A SNPs using TaqMan technology. RESULTS The frequencies of the IL-6-572 GG, GC, and CC genotypes were 5.99%, 42.3%, and 51.6%, respectively, in the case group, and 1.6%, 24%, and 64.3%, respectively, in the control group. Thus, the relative risk of the IL-6-572 G genotype (GG plus GC) was 1.69-fold higher for developing lumbar disc herniation compared to the CC genotype (95% confidence interval: 1.16-2.39, p < 0.01). The risks associated with the IL-6-572 CG and GG genotypes were 1.55- and 4.48-fold higher, respectively, versus the CC genotype for developing lumbar disc herniation (p < 0.01). The IL-10-1082 AG genotype was significantly higher in the case group (26.22%) versus the control group (11.67%); whereas the AA genotype was lower in the case group (73.78%) versus the control group (88.33%; p < 0.05). The IL-10-1082 G allele frequency was significantly higher in the case group (13.11%) versus the control group (5.83%; p < 0.05). CONCLUSION This study demonstrates that genetic variants in the promoter regions of the IL-6 and IL-10 genes are associated with lumbar disc herniation risk in this Northern Chinese Han population.
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Affiliation(s)
- Xiangye Huang
- 1 Department of Medical College, Qingdao University , Qingdao, China .,2 Department of Orthopedics, Zhangqiu People's Hospital , Zhangqiu, China
| | - Feng Chen
- 2 Department of Orthopedics, Zhangqiu People's Hospital , Zhangqiu, China
| | - Jing Zhao
- 2 Department of Orthopedics, Zhangqiu People's Hospital , Zhangqiu, China
| | - Dezhang Wang
- 2 Department of Orthopedics, Zhangqiu People's Hospital , Zhangqiu, China
| | - Shenfeng Jing
- 2 Department of Orthopedics, Zhangqiu People's Hospital , Zhangqiu, China
| | - Hongmei Li
- 2 Department of Orthopedics, Zhangqiu People's Hospital , Zhangqiu, China
| | - Chunyang Meng
- 3 Department of Spine Surgery, Affiliated Hospital of Jining Medical University , Jining, China
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Dluzen DF, Noren Hooten N, Zhang Y, Kim Y, Glover FE, Tajuddin SM, Jacob KD, Zonderman AB, Evans MK. Racial differences in microRNA and gene expression in hypertensive women. Sci Rep 2016; 6:35815. [PMID: 27779208 PMCID: PMC5078799 DOI: 10.1038/srep35815] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Accepted: 10/06/2016] [Indexed: 12/20/2022] Open
Abstract
Systemic arterial hypertension is an important cause of cardiovascular disease morbidity and mortality. African Americans are disproportionately affected by hypertension, in fact the incidence, prevalence, and severity of hypertension is highest among African American (AA) women. Previous data suggests that differential gene expression influences individual susceptibility to selected diseases and we hypothesized that this phenomena may affect health disparities in hypertension. Transcriptional profiling of peripheral blood mononuclear cells from AA or white, normotensive or hypertensive females identified thousands of mRNAs differentially-expressed by race and/or hypertension. Predominant gene expression differences were observed in AA hypertensive females compared to AA normotensives or white hypertensives. Since microRNAs play important roles in regulating gene expression, we profiled global microRNA expression and observed differentially-expressed microRNAs by race and/or hypertension. We identified novel mRNA-microRNA pairs potentially involved in hypertension-related pathways and differently-expressed, including MCL1/miR-20a-5p, APOL3/miR-4763-5p, PLD1/miR-4717-3p, and PLD1/miR-4709-3p. We validated gene expression levels via RT-qPCR and microRNA target validation was performed in primary endothelial cells. Altogether, we identified significant gene expression differences between AA and white female hypertensives and pinpointed novel mRNA-microRNA pairs differentially-expressed by hypertension and race. These differences may contribute to the known disparities in hypertension and may be potential targets for intervention.
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Affiliation(s)
- Douglas F. Dluzen
- Laboratory of Epidemiology and Population Sciences, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA
| | - Nicole Noren Hooten
- Laboratory of Epidemiology and Population Sciences, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA
| | - Yongqing Zhang
- Laboratory of Genetics and Genomics; National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA
| | - Yoonseo Kim
- Laboratory of Epidemiology and Population Sciences, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA
| | - Frank E. Glover
- Laboratory of Epidemiology and Population Sciences, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA
| | - Salman M. Tajuddin
- Laboratory of Epidemiology and Population Sciences, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA
| | - Kimberly D. Jacob
- Laboratory of Epidemiology and Population Sciences, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA
| | - Alan B. Zonderman
- Laboratory of Epidemiology and Population Sciences, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA
| | - Michele K. Evans
- Laboratory of Epidemiology and Population Sciences, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA
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24
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Genetic Variation in the IL-6 and HLA-DQB1 Genes Is Associated with Spontaneous Clearance of Hepatitis C Virus Infection. J Immunol Res 2016; 2016:6530436. [PMID: 27340680 PMCID: PMC4909898 DOI: 10.1155/2016/6530436] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Revised: 03/09/2016] [Accepted: 03/23/2016] [Indexed: 12/24/2022] Open
Abstract
Background. Millions of people are infected with hepatitis C virus (HCV) worldwide and 30% spontaneously clear the infection. Reasons for HCV clearance without antiviral treatment are not well understood. Methods. Blood was collected for DNA analysis from patients with chronic HCV infection or evidence of spontaneous clearance. To overcome anticipated limitations of small sample size, primary analyses consisted of a candidate gene analysis of 12 preselected genes based on known association with host immunologic response to HCV infection. To further reduce the impact of multiple testing on power, a single likelihood ratio test was conducted for each gene using all associated SNPs assayed on the Illumina Quad 610/660W chip. Step-down permutation methods were used to adjust for multiple testing in all analyses. Results. Ninety-five and 62 patients with HCV chronic infection or spontaneous clearance, respectively, were included for analysis. HLA-DQB1 (p = 1.76⁎10(-5)) and IL-6 (p = 0.0007) genes were significantly associated with spontaneous HCV clearance. IL-28B was not significantly associated with spontaneous clearance (p = 0.17). Conclusion. Our whole-gene analytic strategy identified a previously unreported association of IL-6 with spontaneous clearance of HCV infection. We also confirmed the finding that HLA-DQB1 is associated with spontaneous resolution of HCV infection.
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25
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Pine SR, Mechanic LE, Enewold L, Bowman ED, Ryan BM, Cote ML, Wenzlaff AS, Loffredo CA, Olivo-Marston S, Chaturvedi A, Caporaso NE, Schwartz AG, Harris CC. Differential Serum Cytokine Levels and Risk of Lung Cancer Between African and European Americans. Cancer Epidemiol Biomarkers Prev 2015; 25:488-97. [PMID: 26711330 DOI: 10.1158/1055-9965.epi-15-0378] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Accepted: 12/18/2015] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND African Americans have a higher risk of developing lung cancer than European Americans. Previous studies suggested that certain circulating cytokines were associated with lung cancer. We hypothesized that variations in serum cytokine levels exist between African Americans and European Americans, and increased circulating cytokine levels contribute to lung cancer differently in the two races. METHODS Differences in 10 serum cytokine levels, IL1β, IL4, IL5, IL6, IL8, IL10, IL12, granulocyte macrophage colony-stimulating factor, IFNγ, and TNFα, between 170 African-American and 296 European-American controls from the National Cancer Institute-Maryland (NCI-MD) case-control study were assessed. Associations of the serum cytokine levels with lung cancer were analyzed. Statistically significant results were replicated in the prospective Prostate, Lung, Colorectal, and Ovarian Cancer Screening Trial and the Wayne State University Karmanos Cancer Institute case-control study. RESULTS Six cytokines, IL4, IL5, IL8, IL10, IFNγ, and TNFα, were significantly higher among European-American as compared with African-American controls. Elevated IL6 and IL8 levels were associated with lung cancer among both races in all three studies. Elevated IL1β, IL10, and TNFα levels were associated with lung cancer only among African Americans. The association between elevated TNFα levels and lung cancer among European Americans was significant after adjustment for additional factors. CONCLUSIONS Serum cytokine levels vary by race and might contribute to lung cancer differently between African Americans and European Americans. IMPACT Future work examining risk prediction models of lung cancer can measure circulating cytokines to accurately characterize risk within racial groups.
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Affiliation(s)
- Sharon R Pine
- Laboratory of Human Carcinogenesis, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland. Rutgers Cancer Institute of New Jersey, Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey, New Brunswick, New Jersey.
| | - Leah E Mechanic
- Laboratory of Human Carcinogenesis, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland. Epidemiology and Genomics Research Program, Host Factors Branch, Division of Cancer Control and Population Sciences, National Cancer Institute, Bethesda, Maryland
| | - Lindsey Enewold
- Department of Epidemiology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland; and Health Services and Economics Branch of the Applied Research Program, Division of Cancer Control and Population Sciences, National Cancer Institute, Bethesda, Maryland
| | - Elise D Bowman
- Laboratory of Human Carcinogenesis, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Bríd M Ryan
- Laboratory of Human Carcinogenesis, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Michele L Cote
- Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, Michigan
| | - Angela S Wenzlaff
- Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, Michigan
| | - Christopher A Loffredo
- Oncology and Biostatistics, Cancer Genetics and Epidemiology Program, Georgetown University, Washington, DC
| | | | - Anil Chaturvedi
- Infections and Immunoepidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland
| | - Neil E Caporaso
- Genetic Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland
| | - Ann G Schwartz
- Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, Michigan
| | - Curtis C Harris
- Laboratory of Human Carcinogenesis, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland.
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Lan T, Chang L, Wu L, Yuan YF. IL-6 Plays a Crucial Role in HBV Infection. J Clin Transl Hepatol 2015; 3:271-6. [PMID: 26807383 PMCID: PMC4721895 DOI: 10.14218/jcth.2015.00024] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Revised: 09/17/2015] [Accepted: 10/11/2015] [Indexed: 01/05/2023] Open
Abstract
Interleukin-6 (IL-6), a cytokine mainly produced by activated monocytes, has broad pleiotropic actions that affect the functions of a variety of lymphoid cells. The roles of IL-6 in regulating immunity to infections are currently being defined. Remarkably, IL-6-mediated cellular and humoral immune responses play a crucial role in determining the outcome of viral infection. This article reviews the current knowledge on the critical role of IL-6 in hepatitis B virus (HBV) infection. As a competent intermediary, IL-6 derived from activated monocytes plays an important role in promoting lymphocytes responses that are essential for effective viral control. However, as a mediator of inflammation, IL-6 is also involved in the development of HBV-induced liver cirrhosis and exacerbating liver injury. Overall, the current data point to IL-6 as an immunoregulatory cytokine in HBV infection. Immunotherapeutic strategies aimed at optimizing the beneficial effects of IL-6 in HBV infection may prove to be an ordeal in the future, as they should foster the strengths of IL-6 while circumventing potential drawbacks.
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Affiliation(s)
- Tian Lan
- Zhongnan Hospital of Wuhan University, Department of Hepatobiliary Surgery, Wuhan University, Wuhan, China
| | - Lei Chang
- Zhongnan Hospital of Wuhan University, Department of Hepatobiliary Surgery, Wuhan University, Wuhan, China
| | - Long Wu
- Zhongnan Hospital of Wuhan University, Department of Hepatobiliary Surgery, Wuhan University, Wuhan, China
| | - Yu-Feng Yuan
- Zhongnan Hospital of Wuhan University, Department of Hepatobiliary Surgery, Wuhan University, Wuhan, China
- Correspondence to: Yu-Feng Yuan, Zhongnan Hospital of Wuhan University, Department of Hepatobiliary Surgery, Wuhan University, Wuhan 430071, Hubei, China. Tel: +86-027-67812888, Fax: +86-027-67812892, E-mail:
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IL6 gene allele-specific C/EBPα-binding activity affects the development of HBV infection through modulation of Th17/Treg balance. Genes Immun 2015; 16:528-35. [PMID: 26447433 DOI: 10.1038/gene.2015.40] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Revised: 08/13/2015] [Accepted: 08/20/2015] [Indexed: 12/15/2022]
Abstract
Interleukin-6 (IL-6) has an important role in the pathogenesis of chronic viral hepatitis and related liver diseases. Although host genetics associated with the response to anti-viral treatment have been reported, little is known about the relationship between IL6 genetic polymorphisms and the outcome of hepatitis B virus (HBV) infection. In this study, we determined the genotype distribution of rs1800796 polymorphism in healthy controls and cases including chronic HBV (CHB), hepatitis C virus and HIV infection. The rs1800796 was found to be associated with clinical outcome of CHB in experimental and validation cohort. The rs1800796C allele has twofold higher promoter activity than G allele. Consistently, CD14(+) monocytes from subjects carrying the rs1800796C allele produced more IL-6 in response to in vitro HBV core antigen stimulation than those carrying G allele. Moreover, CHB patients carrying rs1800796C allele have significantly higher T-helper 17 (Th17) and regulatory T cell (Treg) ratio. Finally, a transcription factor C/EBPα binds in higher affinity to rs1800796C allele than to G allele. These results suggest that genetic predisposition to higher IL-6 production is associated with increased risk to HBV infection and hepatic inflammation, which might be due to C/EBPα-mediated regulatory effect on Th17 and Treg responses. Appropriate manipulation of IL-6 expression might be used to prevent and treat HBV infection.
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28
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Jia W, Fei GH, Hu JG, Hu XW. A study on the effect of IL-6 gene polymorphism on the prognosis of non-small-cell lung cancer. Onco Targets Ther 2015; 8:2699-704. [PMID: 26445552 PMCID: PMC4590668 DOI: 10.2147/ott.s84636] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Background Lung cancer is one of the most commonly diagnosed clinical diseases. IL-6 is a multifunctional cytokine that is related to chemotactic factors and tumor biological regulation. −174G/C polymorphism in the promoter region of the IL-6 gene single-nucleotide polymorphism is the −174 position change from G to C. However, the relationship between the IL-6 gene polymorphism and prognosis of lung cancer is elusive. Therefore, the aim of this study was to evaluate the effect of −174G/C polymorphism on the prognosis of patients with non-small-cell lung cancer (NSCLC). Methods DNA was extracted from the peripheral blood of 434 cases diagnosed with NSCLC by cytologic or histologic examination. Polymerase chain reaction–restriction fragment length polymorphism (NlaIII) was used to detect the genotype of −174G/C. Based on the functional activity of the IL-6 gene polymorphism, genotypes were divided into G vector (CG/GG) (high yield) and CC genotype (low yield). Prognosis of patients was analyzed and independent risk factors evaluated. A quantitative analysis of the degree of pain after diagnosis was performed to evaluate the correlations between gene polymorphisms and the degree of pain and use of analgesics. Results Survival analysis showed that survival of the patients carrying the G allele (CG/GG) was significantly lower than that of patients with CC genotype (42.31 versus 62.79 months; P=0.032). The IL-6 gene promoter region revealed the presence of polymorphic variants, which may be associated with changes in the gene transcription process that affect the level of serum cytokines. IL-6 −174G/C gene polymorphism is associated with a significant morphine equivalent daily dose (IL-6 GG, 69.61; GC, 73.17; CC, 181.67; P=0.004). Homozygous IL-6 −174C/C genotype carriers required higher doses of opioids than GG or GC carriers. Conclusion Polymorphism of −174G/C in IL-6 is closely related to cancer pain in NSCLC patients, the use of analgesics, and survival prognosis. It is necessary to further confirm the related results and determine the underlying pathogenic mechanisms.
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Affiliation(s)
- Wei Jia
- Pulmonary Department, First Affiliated Hospital of Anhui Medical University, Hefei, People's Republic of China
| | - Guang-He Fei
- Pulmonary Department, First Affiliated Hospital of Anhui Medical University, Hefei, People's Republic of China
| | - Jie-Gui Hu
- Pulmonary Department, First Affiliated Hospital of Anhui Medical University, Hefei, People's Republic of China
| | - Xian-Wei Hu
- Pulmonary Department, First Affiliated Hospital of Anhui Medical University, Hefei, People's Republic of China
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Mitchell EM, Lyles RH, Schisterman EF. Positing, fitting, and selecting regression models for pooled biomarker data. Stat Med 2015; 34:2544-58. [PMID: 25846980 DOI: 10.1002/sim.6496] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Revised: 02/18/2015] [Accepted: 03/13/2015] [Indexed: 01/31/2023]
Abstract
Pooling biospecimens prior to performing lab assays can help reduce lab costs, preserve specimens, and reduce information loss when subject to a limit of detection. Because many biomarkers measured in epidemiological studies are positive and right-skewed, proper analysis of pooled specimens requires special methods. In this paper, we develop and compare parametric regression models for skewed outcome data subject to pooling, including a novel parameterization of the gamma distribution that takes full advantage of the gamma summation property. We also develop a Monte Carlo approximation of Akaike's Information Criterion applied to pooled data in order to guide model selection. Simulation studies and analysis of motivating data from the Collaborative Perinatal Project suggest that using Akaike's Information Criterion to select the best parametric model can help ensure valid inference and promote estimate precision.
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Affiliation(s)
- Emily M Mitchell
- Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, 20892, MD, U.S.A
| | - Robert H Lyles
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, 30322, GA, U.S.A
| | - Enrique F Schisterman
- Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, 20892, MD, U.S.A
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30
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Gomes M, Coelho A, Araújo A, Azevedo A, Teixeira AL, Catarino R, Medeiros R. IL-6 polymorphism in non-small cell lung cancer: a prognostic value? Tumour Biol 2015; 36:3679-84. [PMID: 25566963 DOI: 10.1007/s13277-014-3006-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Accepted: 12/23/2014] [Indexed: 01/22/2023] Open
Abstract
Lung cancer was found to be the most commonly diagnosed cancer, as well as the primary cause of cancer-related mortality for males worldwide and the second leading cause of cancer-related deaths for women. Cytokines are fundamental for several biological processes-associated malignant tumors. The IL-6 is a cytokine involved in the regulation of cellular functions including processes associated with cancer, such as proliferation, apoptosis, angiogenesis, and differentiation. Furthermore, IL-6 is a potent pleiotropic inflammatory cytokine that is considered a key growth-promoting and antiapoptotic factor. The polymorphism-174G/C SNP is a G to C transition in the -174 position of the promoter region of the IL-6 gene. The aim of our study was to evaluate the influence of -174G/C polymorphism in clinical outcome of non-small cell cancer (NSCLC) patients. DNA was extracted from peripheral blood of 424 patients diagnosed with cytologically or histologically NSCLC. The characterization of IL-6 -174G/C genotypes was performed by PCR-RFLP (NlaIII). IL-6 polymorphism's genotypes were divided according to functional activity, so the G carriers (CG/GG) is the high-producer IL-6, and CC genotype is the low-producer IL-6. Regarding survival, we verify that patients with genotypes carrying the G allele (CG/GG) had a statistically significant diminished survival when compared with patients with CC genotype (62.79 and 42.31 months, respectively; P = 0.032). In the promoter region of the IL-6 gene, polymorphic variants were located and may be responsible for alterations in transcription that consequently affect serum levels of the cytokine. With our study, we demonstrated that genetic variant (-174G/G and G/C) can be responsible for changes in prognosis of NSCLC patients.
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Affiliation(s)
- Mónica Gomes
- Molecular Oncology Group-CI, Portuguese Institute of Oncology, Porto, Portugal,
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Winkler B, Taschik J, Haubitz I, Eyrich M, Schlegel PG, Wiegering V. TGFβ and IL10 have an impact on risk group and prognosis in childhood ALL. Pediatr Blood Cancer 2015; 62:72-9. [PMID: 25263239 DOI: 10.1002/pbc.25142] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Accepted: 05/12/2014] [Indexed: 01/06/2023]
Abstract
BACKGROUND Cytokines and their genes have been described to have an influence on incidence and prognosis in malignant, infectious and autoimmune disease. We previously described the impact of cytokine production on prognosis in paediatric standard-risk acute lymphoblastic leukaemia (ALL). PROCEDURE In this study, we investigated the influence of cytokine gene polymorphisms (TNFα, TGFβ, IL10 and IFNγ) on frequency, risk group and prognosis in 95 paediatric ALL-patients. We further report on intracellular production of these cytokines in T-cells. RESULTS IL10 high-producer-haplotypes were reduced in ALL-patients compared with healthy controls and resulted in a reduced relapse rate compared with low-producer haplotypes. TGFβ high-producer-haplotypes were correlated with a high initial blast-count (codon 25: G/G) and were elevated in high-risk ALL-patients (codon 10: T/T). IL10 was positively and IFNγ-production was negatively correlated with initial blast-count. At diagnosis the expression of TNFα and IFNγ was reduced in patients compared with healthy controls. This was more pronounced in high-risk and in T-ALL-patients. CONCLUSION We conclude that gene-polymorphisms of the regulatory/anti-inflammatory cytokines, TGFβ and IL10, but not of the pro-inflammatory cytokines, IFNγ and TNFα, have an impact on prognosis and risk-group of ALL. However, the reduced capacity to produce pro-inflammatory cytokines at diagnosis may serve as another important, functional risk factor. These data may help in further risk stratification and adaptation of therapy-intensity in paediatric patients with ALL.
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Affiliation(s)
- B Winkler
- Department of Pediatric Hematology/Oncology and Stem Cell Transplantation, University of Würzburg, Children's Hospital, Germany
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Vicari P, Adegoke SA, Mazzotti DR, Cançado RD, Nogutti MAE, Figueiredo MS. Interleukin-1β and interleukin-6 gene polymorphisms are associated with manifestations of sickle cell anemia. Blood Cells Mol Dis 2014; 54:244-9. [PMID: 25595815 DOI: 10.1016/j.bcmd.2014.12.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Revised: 12/18/2014] [Accepted: 12/21/2014] [Indexed: 11/28/2022]
Abstract
Sickle cell anemia (SCA), a disorder characterized by both acute and chronic inflammation, exhibits substantial phenotypic variability. Interleukin-1 beta (IL-1β) and IL-6 are important in acute and chronic diseases, and their single nucleotide polymorphisms (SNPs) have been considered as predictors of prognosis in several inflammatory conditions. This study aims at exploring possible association of IL-1β and IL-6 SNPs as potential genetic modifiers and or predictors of SCA clinical and laboratory phenotypes. This cross-sectional study involved 107 SCA patients and 110 age, sex and ethnicity-matched healthy individuals. The SNPs were identified by PCR-RFLP for IL-1β (-511C>T and +3954C>T) and IL-6 (-597G>A and -174G>C) genes. Associations between these SNPs and the clinical and laboratory profiles of patients with SCA were then determined. Allelic and genotypic frequencies of IL-1β and IL-6 SNPs between patients with SCA and controls were similar and followed HWE. IL-1β +3954C>T SNP was associated with increased risk of osteonecrosis, elevated pulmonary arterial pressure and lower absolute reticulocyte count, while IL-6 -597G>A was associated with higher likelihood of retinopathy and leg ulcer. These data indicate that IL-1β and IL-6 gene SNPs are associated with SCA complications among Brazilian patients and may act as genetic predictors of SCA clinical heterogeneity.
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Affiliation(s)
- Perla Vicari
- Disciplina de Hematologia e Hemoterapia, Escola Paulista de Medicina/UNIFESP, São Paulo, Brazil
| | - Samuel A Adegoke
- Disciplina de Hematologia e Hemoterapia, Escola Paulista de Medicina/UNIFESP, São Paulo, Brazil
| | | | - Rodolfo Delfini Cançado
- Disciplina de Hematologia e Oncologia da Faculdade de Ciências Médicas da Santa Casa de São Paulo, São Paulo, Brazil
| | | | - Maria Stella Figueiredo
- Disciplina de Hematologia e Hemoterapia, Escola Paulista de Medicina/UNIFESP, São Paulo, Brazil.
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Liu Y, Gao SJ, Du BX, Wang JJ. Association of IL-6 polymorphisms with hepatocellular carcinoma risk: evidences from a meta-analysis. Tumour Biol 2013; 35:3551-61. [DOI: 10.1007/s13277-013-1469-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2013] [Accepted: 11/25/2013] [Indexed: 12/16/2022] Open
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Ayo CM, Dalalio MMDO, Visentainer JEL, Reis PG, Sippert EÂ, Jarduli LR, Alves HV, Sell AM. Genetic susceptibility to Chagas disease: an overview about the infection and about the association between disease and the immune response genes. BIOMED RESEARCH INTERNATIONAL 2013; 2013:284729. [PMID: 24069594 PMCID: PMC3771244 DOI: 10.1155/2013/284729] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2013] [Revised: 05/09/2013] [Accepted: 05/31/2013] [Indexed: 01/05/2023]
Abstract
Chagas disease, which is caused by the flagellate parasite Trypanosoma cruzi, affects 8-10 million people in Latin America. The disease is endemic and is characterised by acute and chronic phases that develop in the indeterminate, cardiac, and/or gastrointestinal forms. The immune response during human T. cruzi infection is not completely understood, despite its role in driving the development of distinct clinical manifestations of chronic infection. Polymorphisms in genes involved in the innate and specific immune response are being widely studied in order to clarify their possible role in the occurrence or severity of disease. Here we review the role of classic and nonclassic MHC, KIR, and cytokine host genetic factors on the infection by T. cruzi and the clinical course of Chagas disease.
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Affiliation(s)
- Christiane Maria Ayo
- Program of Biosciences Applied to Pharmacy, Department of Clinical Analysis and Biomedicine, Maringa State University, Avenida Colombo 5790, 87020900 Maringa, PR, Brazil
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Wells JCK, Cortina-Borja M. Different associations of subscapular and triceps skinfold thicknesses with pathogen load: an ecogeographical analysis. Am J Hum Biol 2013; 25:594-605. [PMID: 23913438 DOI: 10.1002/ajhb.22418] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2012] [Revised: 04/29/2013] [Accepted: 05/24/2013] [Indexed: 11/11/2022] Open
Abstract
OBJECTIVES The dominant evolutionary perspective on adipose tissue has considered it a relatively inert energy store. However, variability in adipose tissue distribution has recently been associated with age, parity, thermal environment and immune function. Genes regulating the innate immune system are more strongly expressed in deep-lying than peripheral adipose tissue. We hypothesized that central adiposity would correlate more strongly than peripheral adiposity with pathogen load across populations. METHODS Primary outcomes were subscapular and triceps skinfolds from 133 male and 106 female populations. National values for disability-adjusted life years lost, attributable to infectious diseases, were used to index pathogen load. Linear mixed-effects models were fitted, including a random effect term by country to investigate the association of each skinfold with pathogen load, adjusting for the other skinfold, mean annual temperature and clustering of the populations across countries. RESULTS Adjusting for subscapular skinfold, triceps skinfold was not associated with pathogen load in either sex. Adjusting for triceps skinfold, subscapular skinfold was negatively associated with pathogen load in both sexes (P < 0.02). These associations were independent of variability in annual temperature. Adjusting for pathogen load and temperature, Oceanic populations had a different fat distribution compared to other populations. CONCLUSIONS Across populations, higher pathogen load was associated with reduced central but not peripheral skinfolds, supporting the hypothesis that central adiposity is more closely associated with immune function. This scenario might explain why some populations increase disproportionately in central adiposity when the environment shifts from low-energy high-pathogen status to high-energy low-pathogen status.
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Affiliation(s)
- Jonathan C K Wells
- Childhood Nutrition Research Centre, UCL Institute of Child Health, 30 Guilford Street, London, WC1N 1EH, United Kingdom
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Giannitrapani L, Soresi M, Balasus D, Licata A, Montalto G. Genetic association of interleukin-6 polymorphism (-174 G/C) with chronic liver diseases and hepatocellular carcinoma. World J Gastroenterol 2013; 19:2449-2455. [PMID: 23674845 PMCID: PMC3646134 DOI: 10.3748/wjg.v19.i16.2449] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2012] [Revised: 12/29/2012] [Accepted: 03/27/2013] [Indexed: 02/06/2023] Open
Abstract
Interleukin-6 (IL-6) is a pleiotropic cytokine which is expressed in many inflammatory cells in response to different types of stimuli, regulating a number of biological processes. The IL-6 gene is polymorphic in both the 5’ and 3’ flanking regions and more than 150 single nucleotide polymorphisms have been identified so far. Genetic polymorphisms of IL-6 may affect the outcomes of several diseases, where the presence of high levels of circulating IL-6 have been correlated to the stage and/or the progression of the disease itself. The -174 G/C polymorphism is a frequent polymorphism, that is located in the upstream regulatory region of the IL-6 gene and affects IL-6 production. However, the data in the literature on the genetic association between the -174 G/C polymorphism and some specific liver diseases characterized by different etiologies are still controversial. In particular, most of the studies are quite unanimous in describing a correlation between the presence of the high-producer genotype and a worse evolution of the chronic liver disease. This is valid for patients with hepatitis C virus (HCV)-related chronic hepatitis and liver cirrhosis and hepatocellular carcinoma (HCC) whatever the etiology. Studies in hepatitis B virus-related chronic liver diseases are not conclusive, while specific populations like non alcoholic fatty liver disease/non-alcoholic steatohepatitis, autoimmune and human immunodeficiency virus/HCV co-infected patients show a higher prevalence of the low-producer genotype, probably due to the complexity of these clinical pictures. In this direction, a systematic revision of these data should shed more light on the role of this polymorphism in chronic liver diseases and HCC.
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MESH Headings
- Carcinoma, Hepatocellular/genetics
- Carcinoma, Hepatocellular/immunology
- Fatty Liver/genetics
- Fatty Liver/immunology
- Genetic Predisposition to Disease
- Hepatitis B, Chronic/genetics
- Hepatitis B, Chronic/immunology
- Hepatitis C, Chronic/genetics
- Hepatitis C, Chronic/immunology
- Hepatitis, Autoimmune/genetics
- Hepatitis, Autoimmune/immunology
- Humans
- Interleukin-6/genetics
- Liver Cirrhosis/genetics
- Liver Cirrhosis/immunology
- Liver Diseases, Alcoholic/genetics
- Liver Diseases, Alcoholic/immunology
- Liver Neoplasms/genetics
- Liver Neoplasms/immunology
- Non-alcoholic Fatty Liver Disease
- Phenotype
- Polymorphism, Single Nucleotide
- Risk Factors
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Effect of interleukin-6 and insulin resistance on early virological response of Egyptian chronic hepatitis C patients to combined pegylated interferon plus ribavirin therapy. EGYPTIAN LIVER JOURNAL 2013. [DOI: 10.1097/01.elx.0000427103.05494.6c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
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O'Brien RP, Phelan PJ, Conroy J, O'Kelly P, Green A, Keogan M, O'Neill D, Jennings S, Traynor C, Casey J, McCormack M, Conroy R, Chubb A, Ennis S, Shields DC, Cavalleri GL, Conlon PJ. A genome-wide association study of recipient genotype and medium-term kidney allograft function. Clin Transplant 2013; 27:379-87. [DOI: 10.1111/ctr.12093] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/17/2012] [Indexed: 11/30/2022]
Affiliation(s)
| | - Paul J. Phelan
- Department of Nephrology and Renal Transplantation; Beaumont Hospital; Dublin 9; Ireland
| | - Judith Conroy
- School of Medicine and Medical Science; University College; Dublin 4; Ireland
| | - Patrick O'Kelly
- Department of Nephrology and Renal Transplantation; Beaumont Hospital; Dublin 9; Ireland
| | - Andrew Green
- UCD Complex and Adaptive Systems Laboratory; University College Dublin; Dublin 4; Ireland
| | - Mary Keogan
- Department of Histocompatibility and Immunogenetics; Beaumont Hospital; Dublin; Ireland
| | - Derek O'Neill
- Department of Histocompatibility and Immunogenetics; Beaumont Hospital; Dublin; Ireland
| | - Susan Jennings
- Department of Histocompatibility and Immunogenetics; Beaumont Hospital; Dublin; Ireland
| | - Carol Traynor
- Department of Nephrology and Renal Transplantation; Beaumont Hospital; Dublin 9; Ireland
| | - Jillian Casey
- School of Medicine and Medical Science; University College; Dublin 4; Ireland
| | - Mark McCormack
- Molecular and Cellular Therapeutics; RCSI; Dublin 2; Ireland
| | - Ronan Conroy
- Division of Population Health Sciences; Royal College of Surgeons in Ireland; Dublin; Ireland
| | - Anthony Chubb
- UCD Complex and Adaptive Systems Laboratory; University College Dublin; Dublin 4; Ireland
| | - Sean Ennis
- School of Medicine and Medical Science; University College; Dublin 4; Ireland
| | - Denis C. Shields
- UCD Complex and Adaptive Systems Laboratory; University College Dublin; Dublin 4; Ireland
| | | | - Peter J. Conlon
- Department of Nephrology and Renal Transplantation; Beaumont Hospital; Dublin 9; Ireland
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Taylor BD, Darville T, Ferrell RE, Ness RB, Haggerty CL. Racial variation in toll-like receptor variants among women with pelvic inflammatory disease. J Infect Dis 2012; 207:940-6. [PMID: 23255565 DOI: 10.1093/infdis/jis922] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Racial disparities exist in gynecological diseases. Variations in Toll-like receptor (TLR) genes may alter signaling following microbial recognition. METHODS We explored genotypic differences in 6 functional variants in 4 TLR genes (TLR1, TLR2, TLR4, TLR6) and the adaptor molecule TIRAP between 205 African American women and 51 white women with clinically suspected pelvic inflammatory disease (PID). A permutated P < .007 was used to assess significance. Associations between race and endometritis and/or upper genital tract infection (UGTI) were explored. Logistic regression was used to calculate odds ratios (ORs) and 95% confidence intervals (CIs). RESULTS The TT genotype for TLR1 rs5743618, the GG genotype for TLR1 rs4833095, the CC genotype for TLR2 rs3804099, the TLR6 rs5743810 T allele, and the CC genotype for TIRAP rs8177374 significantly differed between races (P < .007). African American race was associated with endometritis and/or UGTI (OR, 4.2 [95% CI, 2.0-8.7]; P = .01). Among African Americans, the TLR6 rs5743810 T allele significantly decreased endometritis and/or UGTI (OR, 0.4 [95% CI, .2-.9]; P = .04). Additionally, rs5743618, rs4833095, and rs8177374 increased endometritis and/or UGTI, albeit not significantly. CONCLUSIONS Among women with PID, TLR variants that increase inflammation are associated with African American race and may mediate the relationship between race and endometritis and/or UGTI.
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Affiliation(s)
- Brandie D Taylor
- Department of Epidemiology, University of Pittsburgh, 130 Desoto St, 513 Parran Hall, Pittsburgh, PA 15261, USA.
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40
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Ryu JH, Kim SJ. Interleukin-6 -634 C/G and -174 G/C polymorphisms in Korean patients undergoing hemodialysis. Korean J Intern Med 2012; 27:327-37. [PMID: 23019398 PMCID: PMC3443726 DOI: 10.3904/kjim.2012.27.3.327] [Citation(s) in RCA: 12] [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] [Received: 07/11/2011] [Revised: 09/01/2011] [Accepted: 12/30/2011] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND/AIMS Chronic inflammatory status is a possible risk factor for vascular access dysfunction in hemodialysis (HD) patients, but susceptibility differences appear among individuals. Interleukin (IL)-6 is a well-known inflammatory cytokine with various polymorphisms. We examined whether IL-6 polymorphisms are associated with vascular access dysfunction in HD patients. METHODS A total of 80 HD patients (including 42 diabetic patients) were enrolled. Polymorphisms in the IL-6 gene promoter (-634 C/G and -174 G/C) were studied using restriction length polymorphism polymerase chain reaction analysis. Vascular access patency was compared between the patient groups with respect to IL-6 polymorphisms. An additional 89 healthy individuals were enrolled in the control group. Plasma IL-6 levels were determined by enzyme-linked immunosorbent assay. RESULTS The GG genotype and G allele at position -634 in the IL-6 promoter were more frequently observed in HD patients than in controls. Furthermore, the distribution of the -634 polymorphism differed according to vascular access patency in non-diabetic HD patients. However, the G allele was not a significant risk factor for early access failure. No significant association appeared between the IL-6 -634 C/G polymorphism and plasma IL-6 levels. The C allele of the IL-6 -174 G/C polymorphism was not detected in our study population. CONCLUSIONS The IL-6 -634 G allele appears with greater frequently in patients with end-stage renal disease and may be associated with vascular access dysfunction in non-diabetic HD patients.
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MESH Headings
- Adult
- Aged
- Arteriovenous Shunt, Surgical/adverse effects
- Asian People/genetics
- Case-Control Studies
- Chi-Square Distribution
- Enzyme-Linked Immunosorbent Assay
- Female
- Gene Frequency
- Genotype
- Graft Occlusion, Vascular/blood
- Graft Occlusion, Vascular/ethnology
- Graft Occlusion, Vascular/genetics
- Graft Occlusion, Vascular/physiopathology
- Humans
- Interleukin-6/blood
- Interleukin-6/genetics
- Kidney Failure, Chronic/blood
- Kidney Failure, Chronic/ethnology
- Kidney Failure, Chronic/genetics
- Kidney Failure, Chronic/immunology
- Kidney Failure, Chronic/therapy
- Logistic Models
- Male
- Middle Aged
- Odds Ratio
- Phenotype
- Polymerase Chain Reaction
- Polymorphism, Genetic
- Promoter Regions, Genetic
- Renal Dialysis
- Republic of Korea
- Time Factors
- Treatment Outcome
- Vascular Patency/genetics
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Affiliation(s)
- Jung-Hwa Ryu
- Division of Nephrology, Department of Internal Medicine, Ewha Womans University School of Medicine, Seoul, Korea
| | - Seung-Jung Kim
- Division of Nephrology, Department of Internal Medicine, Ewha Womans University School of Medicine, Seoul, Korea
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Abstract
Renal allograft rejection or dysfunction often results in graft failure, and remains the major obstacle in the success of renal transplantation. Various immunological and nonimmunological factors are involved in allograft rejection. In addition to human leukocyte antigen loci, several genetically controlled molecules have been identified in recent years as playing important roles in the process of rejection. Genetic variants in genes encoding different T-helper (Th) type 1 and Th2 cytokines, chemokines and their receptors, growth factors, molecules of the renin-angiotensin system, enzymes of the homocysteine pathway, and proteins acting as substrates of immunosuppressive drugs impact on the success of engraftment and highlight the concept of genetic predisposition to allograft rejection. This review evaluates specific genetic variants and their functional roles in graft failure, with an emphasis on the latest methodologies available for genotyping, and appropriate strategies to enable them to become a tool of predictive and individualized medicine to ensure better transplant outcome.
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Affiliation(s)
- Faisal Khan
- Department of Medical Genetics, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, (UP), India
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Shebl FM, Yu K, Landgren O, Goedert JJ, Rabkin CS. Increased levels of circulating cytokines with HIV-related immunosuppression. AIDS Res Hum Retroviruses 2012; 28:809-15. [PMID: 21962239 DOI: 10.1089/aid.2011.0144] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Cytokines may contribute to the severity of CD4 cell depletion with human immunodeficiency virus (HIV) infection, but quantitative relationships are not well defined. Serum and plasma from 181 HIV-infected individuals were tested with Millipore 30-plex Luminex cytokine assays. Within-individual correlations among cytokines were summarized by two-dimensional hierarchical cluster analysis. Associations with age, sex, race, CD4 count, and HIV viral load were determined with linear regression models. Tests for statistical significance were corrected for multiple comparisons, using a false discovery rate of 0.1. African-Americans had significantly higher levels than whites of six cytokines (IL-2, IL-5, IL-7, IL-15, fractalkine, and IFN-γ), and lower levels of MCP-1. Females had higher fractalkine levels than males. Age was not associated with levels of any cytokine. Six cytokines, including the T-helper (Th) type 1 cytokine IL-15, the Th2 cytokines IL-1ra and IL-10, the chemokines fractalkine and MCP-1, and the growth factor G-CSF were each inversely associated with CD4 count; no cytokine was directly associated with CD4 count. Fractalkine was directly associated with HIV viral load, adjusted for CD4 count. Cytokines clustered by primary function (e.g., Th1, Th2, proinflammatory, chemokines, or growth factors) whereas individuals clustered according to cytokine levels (generally high, intermediate, or low) had significantly different CD4 counts [medians (interquartile range) of 60 (17-162), 131 (62-321), and 155 (44-467), respectively; p<0.0001]. CD4 deficiency is associated with generalized increases in cytokines of various functions. Racial differences in cytokine response to HIV infection could contribute to disparities in disease progression.
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Affiliation(s)
- Fatma M. Shebl
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Services, Rockville, Maryland
| | - Kai Yu
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Services, Rockville, Maryland
| | - Ola Landgren
- Medical Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Department of Health and Human Services, Bethesda, Maryland
| | - James J. Goedert
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Services, Rockville, Maryland
| | - Charles S. Rabkin
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Services, Rockville, Maryland
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Padiyar A, Hricik DE. Immune factors influencing ethnic disparities in kidney transplantation outcomes. Expert Rev Clin Immunol 2012; 7:769-78. [PMID: 22014018 DOI: 10.1586/eci.11.32] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
An influence of ethnicity on the outcomes of kidney transplant recipients has been recognized for several decades. Both immune and nonimmune factors have been explored as potential explanations. Most studies have focused on the inferior outcomes of African-Americans. As a group, African-Americans differ from Caucasians with respect to a number of measurable components of the alloimmune response, including the T-cell repertoire and the expression and function of costimulatory molecules and various cytokines and chemokines. In general, these differences suggest that African-Americans may be high immune responders. However, no single difference in any of these components of alloimmunity satisfactorily explains the disparities in outcomes. It seems probable that some combination of immune factors interacts with nonimmune factors, such as socioeconomic resources, to influence transplant outcomes in a complex manner.
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Affiliation(s)
- Aparna Padiyar
- Division of Nephrology and Hypertension and Transplantation Service, Case Western Reserve University and University Hospitals University Hospitals Case Medical Center, 11100 Euclid Avenue, Cleveland, OH 44106, USA
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44
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Santovito A, Cervella P, Schleicherova D, Delpero M. Genotyping for cytokine polymorphisms in a Northern Ivory Coast population reveals a high frequency of the heterozygote genotypes for the TNF-α-308G/A SNP. Int J Immunogenet 2012; 39:291-5. [DOI: 10.1111/j.1744-313x.2012.01086.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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45
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Genetic Polymorphisms and Bronchiolitis Obliterans Syndrome After Lung Transplantation. Transplantation 2012; 93:127-35. [DOI: 10.1097/tp.0b013e31823915d5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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46
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Xiong P, Zeng Y, Wan J, Xiaohan DH, Tan D, Lu J, Xu F, Li HY, Zhu Z, Ma M. The role of NGF and IL-2 serum level in assisting the diagnosis in first episode schizophrenia. Psychiatry Res 2011; 189:72-6. [PMID: 21277636 DOI: 10.1016/j.psychres.2010.12.017] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2009] [Revised: 11/03/2010] [Accepted: 12/08/2010] [Indexed: 10/18/2022]
Abstract
Development of reliable diagnostic bio-markers for schizophrenia remains a diagnostic challenge. Serum NGF and IL-2 were analyzed to examine the diagnostic efficiency and predictive capability of these two biomarkers in relation to schizophrenia diagnosis. Thirty neuroleptic naïve subjects with first-episode schizophrenia, thirty patients with major depressive disorder (MDD) and twenty-eight healthy control subjects participated in the study. One-way ANOVA demonstrated significantly lower serum IL-2 and NGF among schizophrenic patients and patients with MDD compared with healthy controls. Receiver operating characteristic (ROC) curve analysis was used to ascertain diagnostic efficiency of serum IL-2 and NGF levels. Area under the ROC curve (AUC) revealed a high level of differentiation between schizophrenic patients and healthy controls for both IL-2 and NGF serum concentrations. Diagnostic efficiency of combined NGF and IL-2 serum levels was also high in schizophrenic patients compared with healthy controls. Serum NGF and IL-2 are promising as potential screening or diagnostic biomarkers for schizophrenia and may be a useful adjunct for clinical assessment.
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Affiliation(s)
- Peng Xiong
- Department of Psychiatry, The First Affiliated Hospital of Kunming Medical College, #295 Xichang Road, Kunming, Yunnan, 650031, China
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Vallance K, Yang J, Li J, Crabtree VM, Hinds PS, Mandrell BN. Disturbed Sleep in Pediatric Patients With Leukemia: The Potential Role of Interleukin-6 (-174GC) and Tumor Necrosis Factor (-308GA) Polymorphism. Oncol Nurs Forum 2011; 38:E365-72. [DOI: 10.1188/11.onf.e365-e372] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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48
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Ashavaid T, Raje H, Shalia K, Shah B. Effect of gene polymorphisms on the levels of calcineurin inhibitors in Indian renal transplant recipients. Indian J Nephrol 2011; 20:146-51. [PMID: 21072155 PMCID: PMC2966981 DOI: 10.4103/0971-4065.70846] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
The outcome of renal transplantation is improved by cyclosporine and tacrolimus. However, its success is limited by drug-induced nephrotoxicity. Therefore, monitoring their levels is important. These levels are influenced mainly by CYP3A4, CYP3A5 and MDR- 1 genes. These levels also affect target molecules of CNIs, mainly IL-2. Inter-individual differences in these levels have been attributed to SNPs in these genes and hence study of these SNPs assumes significance. So far no study has been carried out on Indian renal transplant recipients covering the SNPs of the genes involved in metabolism, efflux and drug target of CNIs, hence the data is lacking for Indian population. The aim is to study A-392G SNP of CYP3A4, A6986G SNP of CYP3A5, C3435T SNP of MDR-1 and T-330G SNP of IL-2 genes and correlate with CNI blood levels. Hundred healthy subjects and 100 consecutive renal transplant recipients; 56 on CsA and 44 on tacrolimus were genotyped by PCR followed by restriction enzyme assay for mentioned SNPs. No significant difference was observed between level/dose (L/D) ratio of CNIs and CYP3A4 and IL-2 SNPs. However, median L/D ratio for tacrolimus was significantly higher in subjects with CYP3A5*3/*3 (n = 24) (P = 0.011) and MDR- 1 3435TT (n = 18) (P = 0.0122). The findings from this study show that homozygous mutant patients for CYP3A5 and MDR-1 gene SNPs could be managed with lower tacrolimus dose to avoid nephrotoxicity.
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Affiliation(s)
- T Ashavaid
- Department of Lab Medicine and Research Laboratories, P. D. Hinduja National Hospital and Medical Research Center, Mumbai, India
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Vallochi AL, Goldberg AC, Falcai A, Ramasawmy R, Kalil J, Silveira C, Belfort R, Rizzo LV. Molecular markers of susceptibility to ocular toxoplasmosis, host and guest behaving badly. Clin Ophthalmol 2011; 2:837-48. [PMID: 19668438 PMCID: PMC2699811 DOI: 10.2147/opth.s1629] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Infection with Toxoplasma gondii results in retinochoroiditis in 6% to 20% of immunocompetent individuals. The outcome of infection is the result of a set of interactions involving host genetic background, environmental, and social factors, and the genetic background of the parasite, all of which can be further modified by additional infections or even reinfection. Genes that encode several components of the immune system exhibit polymorphisms in their regulatory and coding regions that affect level and type of expression in response to stimuli, directing the immune response into different pathways. These variant alleles have been associated with susceptibility to immune-mediated diseases and with severity of pathology. We have investigated polymorphisms in several of these genes, identified as candidates for progression to retinochoroiditis caused by toxoplasmosis, namely chemokine (C-C motif) receptor 5 (CCR5), toll-like receptor-2 (TLR2), and TLR4. Furthermore, because interleukin-12 (IL-12) has been shown to be fundamental both in mice and in man to control a protective response against T. gondii, molecules that have a key function in IL-12 production will be emphasized in this review, in addition to discussing the importance of the genetic background of the parasite in the establishment of ocular disease.
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Affiliation(s)
- Adriana Lima Vallochi
- Oswaldo Cruz Institution (IOC), Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro, RJ, Brazil
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Cussigh A, Falleti E, Fabris C, Bitetto D, Cmet S, Fontanini E, Bignulin S, Fornasiere E, Fumolo E, Minisini R, Pirisi M, Toniutto P. Interleukin 6 promoter polymorphisms influence the outcome of chronic hepatitis C. Immunogenetics 2010; 63:33-41. [PMID: 21072509 DOI: 10.1007/s00251-010-0491-7] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2010] [Accepted: 10/25/2010] [Indexed: 02/07/2023]
Abstract
Host genetic variation may affect the outcome of chronic viral hepatitides, favoring viral clearance and/or modulating the inflammatory response to persistent infection. Our aims were to assess whether interleukin 6 (IL-6) promoter polymorphisms are associated with chronic hepatitis C virus (HCV) infection and to clarify the role of IL-6 haplotypes in facilitating progressive disease. The study included 424 Italian patients (233 males, median age 53 years) affected by HCV chronic infection. IL6 -1363, -597, -572, -174, and +2954 polymorphic loci were assayed by means of restriction fragment length polymorphism. Three hundred forty-four healthy Italian blood donors (245 males, median age 50 years) served as controls. Comparing patients and controls analysis of molecular variance was highly significant (p < 0.0001); at a locus by locus approach, the frequencies of minor alleles in the -1363 (p < 0.02), -597 (p < 0.02), and -174 (p < 0.01) polymorphisms were confirmed to be less represented in patients than in controls. Carrying the wild-type G allele at the -597 and -174 loci identified an unfavorable haplotype; carrying the minor allele in one/both loci identified an indifferent/favorable haplotype. Male patients carrying two unfavorable haplotypes had the highest adjusted mean ± standard error Ishak staging score (3.56 ± 0.19), while females carrying one or no unfavorable haplotypes had the lowest (2.69 ± 0.21); the remaining patients had an intermediate value (3.12 ± 0.13, p < 0.01). In conclusion, IL-6 promoter polymorphisms influence the development of chronic HCV infection. With the permissive effect of male gender, haplotypes represented by the wild-type allele for -597 and -174 loci appear to favor a worse evolution of the disease.
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