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Leonard S, Guertin H, Odoardi N, Miller MR, Patel MA, Daley M, Cepinskas G, Fraser DD. Pediatric sepsis inflammatory blood biomarkers that correlate with clinical variables and severity of illness scores. J Inflamm (Lond) 2024; 21:7. [PMID: 38454423 PMCID: PMC10921642 DOI: 10.1186/s12950-024-00379-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 02/19/2024] [Indexed: 03/09/2024] Open
Abstract
BACKGROUND Sepsis is a dysregulated systemic inflammatory response triggered by infection, resulting in organ dysfunction. A major challenge in clinical pediatrics is to identify sepsis early and then quickly intervene to reduce morbidity and mortality. As blood biomarkers hold promise as early sepsis diagnostic tools, we aimed to measure a large number of blood inflammatory biomarkers from pediatric sepsis patients to determine their predictive ability, as well as their correlations with clinical variables and illness severity scores. METHODS Pediatric patients that met sepsis criteria were enrolled, and clinical data and blood samples were collected. Fifty-eight inflammatory plasma biomarker concentrations were determined using immunoassays. The data were analyzed with both conventional statistics and machine learning. RESULTS Twenty sepsis patients were enrolled (median age 13 years), with infectious pathogens identified in 75%. Vasopressors were administered to 85% of patients, while 55% received invasive ventilation and 20% were ventilated non-invasively. A total of 24 inflammatory biomarkers were significantly different between sepsis patients and age/sex-matched healthy controls. Nine biomarkers (IL-6, IL-8, MCP-1, M-CSF, IL-1RA, hyaluronan, HSP70, MMP3, and MMP10) yielded AUC parameters > 0.9 (95% CIs: 0.837-1.000; p < 0.001). Boruta feature reduction yielded 6 critical biomarkers with their relative importance: IL-8 (12.2%), MCP-1 (11.6%), HSP70 (11.6%), hyaluronan (11.5%), M-CSF (11.5%), and IL-6 (11.5%); combinations of 2 biomarkers yielded AUC values of 1.00 (95% CI: 1.00-1.00; p < 0.001). Specific biomarkers strongly correlated with illness severity scoring, as well as other clinical variables. IL-3 specifically distinguished bacterial versus viral infection (p < 0.005). CONCLUSIONS Specific inflammatory biomarkers were identified as markers of pediatric sepsis and strongly correlated to both clinical variables and sepsis severity.
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Affiliation(s)
- Sean Leonard
- Pediatrics, Western University, London, ON, Canada
| | | | - Natalya Odoardi
- Emergency Medicine, Lakeridge Health, Ajax/Oshawa, ON, Canada
| | | | - Maitray A Patel
- Epidemiology and Biostatistics, Western University, London, ON, Canada
| | - Mark Daley
- Epidemiology and Biostatistics, Western University, London, ON, Canada
- Computer Science, Western University, London, ON, Canada
| | - Gediminas Cepinskas
- Medical Biophysics, Western University, London, ON, Canada
- Lawson Health Research Institute, London, ON, Canada
| | - Douglas D Fraser
- Pediatrics, Western University, London, ON, Canada.
- Lawson Health Research Institute, London, ON, Canada.
- Clinical Neurological Sciences, Western University, London, ON, Canada.
- Physiology & Pharmacology, Western University, London, ON, Canada.
- Room C2-C82, London Health Sciences Centre, 800 Commissioners Road East, London, ON, N6A 5W9, Canada.
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Palalıoğlu B, Erdoğan S, Atay G, Tugrul HC, Özer ÖF. Diagnostic and Prognostic Value of Pentraxin 3, Interleukin-6, CRP, and Procalcitonin Levels in Patients with Sepsis and Septic Shock. Niger J Clin Pract 2024; 27:317-324. [PMID: 38528351 DOI: 10.4103/njcp.njcp_615_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Accepted: 12/16/2023] [Indexed: 03/27/2024]
Abstract
INTRODUCTION AND PURPOSE In this prospective study, we aim to evaluate the effects of antibiotherapy on pentraxin-3 (PTX3), C-reactive protein (CRP), and interleukin-6 (IL-6) levels in patients with sepsis and septic shock. MATERIALS AND METHODS In our study, CRP, procalcitonin, IL-6, and PTX3 levels at initial and 48 hours of the antibiotherapy of patients who were admitted to the pediatric intensive care unit (PICU) with the diagnosis of sepsis and septic shock between June 2020 and March 2021 were compared. Patients were compared with the age-appropriate case-control group formed from the patients who received pre-operative routines to investigate the diagnostic value. RESULTS CRP, IL-6, and PTX3 levels of the patients were significantly higher compared to controls (P < 0.05). After the 48th hour of treatment compared to initial CRP, lactate and PCT levels were significantly lower (P < 0.05). The IL-6 and PCT levels were significantly higher in patients with mortality than in surviving patients. Surviving patients showed a significant decrease in CRP level at the 48th hour. IL-6 levels of patients with septic shock were significantly higher than those with sepsis (P = 0.010; P < 0.05). In the diagnosis of septic shock, the area under curve was 0.785 for IL-6 and the standard deviation was 0.09 (P = 0.002, cut-off value, >32 pg/mL, 88.9% sensitivity, 65.6% specifity). CONCLUSION The results of this study indicated that IL-6 level is an appropriate biomarker with high specificity in the diagnosis of sepsis and septic shock and in evaluating the response to treatment and determining the prognosis.
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Affiliation(s)
- B Palalıoğlu
- Department of Pediatrics, University of Health Sciences Zeynep Kamil Training and Research Hospital, Uskudar Opr. Dr. Burhanettin Ustunel Cad. No:10, Istanbul, Turkey
| | - S Erdoğan
- Department of Pediatric Intensive Care, University of Health Sciences Umraniye Training and Research Hospital, Elmalıkent, Adem Yavuz Cd., Istanbul, Turkey
| | - G Atay
- Department of Pediatric Intensive Care, University of Health Sciences Umraniye Training and Research Hospital, Elmalıkent, Adem Yavuz Cd., Istanbul, Turkey
| | - H C Tugrul
- Department of Pediatric Intensive Care, University of Health Sciences Umraniye Training and Research Hospital, Elmalıkent, Adem Yavuz Cd., Istanbul, Turkey
| | - Ö F Özer
- Bezmialem Vakif University, Department of Biochemistry Adnan Menderes Bulvarı (Vatan Cad.) P.K. 34093 Fatih/Istanbul, Turkey
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Kumar R, Kausch SL, Gummadi AKS, Fairchild KD, Abhyankar MM, Petri WA, Sullivan BA. Inflammatory biomarkers and physiomarkers of late-onset sepsis and necrotizing enterocolitis in premature infants. Front Pediatr 2024; 12:1337849. [PMID: 38312920 PMCID: PMC10834753 DOI: 10.3389/fped.2024.1337849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 01/08/2024] [Indexed: 02/06/2024] Open
Abstract
Background Early diagnosis of late-onset sepsis (LOS) and necrotizing enterocolitis (NEC) in very low birth weight (VLBW, <1,500 g) infants is challenging due to non-specific clinical signs. Inflammatory biomarkers increase in response to infection, but non-infectious conditions also cause inflammation. Cardiorespiratory data contain physiological biomarkers, or physiomarkers, of sepsis that may be useful in combination with inflammatory hematologic biomarkers for sepsis diagnosis. Objectives To determine whether inflammatory biomarkers measured at the time of LOS or NEC diagnosis differ from times without infection and whether biomarkers correlate with cardiorespiratory sepsis physiomarkers in VLBW infants. Methods Remnant plasma sample collection from VLBW infants occurred with blood draws for routine laboratory testing and suspected sepsis. We analyzed 11 inflammatory biomarkers and a pulse oximetry sepsis warning score (POWS). We compared biomarker levels obtained at the time of gram-negative (GN) bacteremia or NEC, gram-positive (GP) bacteremia, negative blood cultures, and no suspected infection. Results We analyzed 188 samples in 54 VLBW infants. Several biomarkers were increased at the time of GN LOS or NEC diagnosis compared with all other samples. POWS was higher in patients with LOS and correlated with five biomarkers. IL-6 had 78% specificity at 100% sensitivity to detect GN LOS or NEC and added information to POWS. Conclusions Inflammatory plasma biomarkers discriminate sepsis due to GN bacteremia or NEC and correlate with cardiorespiratory physiomarkers.
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Affiliation(s)
- Rupin Kumar
- Department of Pediatrics, Division of Neonatology, University of Kentucky College of Medicine, Lexington, KY, United States
| | - Sherry L. Kausch
- Department of Pediatrics, Division of Neonatology, University of Virginia School of Medicine, Charlottesville, VA, United States
| | - Angela K. S. Gummadi
- Department of Pediatrics, Division of Neonatology, University of Virginia School of Medicine, Charlottesville, VA, United States
| | - Karen D. Fairchild
- Department of Pediatrics, Division of Neonatology, University of Virginia School of Medicine, Charlottesville, VA, United States
| | - Mayuresh M. Abhyankar
- Department of Internal Medicine, Division of Infectious Diseases, University of Virginia School of Medicine, Charlottesville, VA, United States
| | - William A. Petri
- Department of Internal Medicine, Division of Infectious Diseases, University of Virginia School of Medicine, Charlottesville, VA, United States
| | - Brynne A. Sullivan
- Department of Pediatrics, Division of Neonatology, University of Virginia School of Medicine, Charlottesville, VA, United States
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Bodilly L, Williamson L, Lahni P, Alder MN, Haslam DB, Kaplan JM. Obesity Alters cytokine signaling and gut microbiome in septic mice. Innate Immun 2023; 29:161-170. [PMID: 37802127 PMCID: PMC10621470 DOI: 10.1177/17534259231205959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 09/12/2023] [Accepted: 09/20/2023] [Indexed: 10/08/2023] Open
Abstract
Sepsis is a leading cause of mortality. Plasma cytokine levels may identify those at increased risk of mortality from sepsis. Our aim was to understand how obesity alters cytokine levels during early sepsis and its correlation with survival. Six-week-old C57BL/6 male mice were randomized to control (non-obese) or high fat diet (obese) for 5-7 weeks. Sepsis was induced by cecal ligation and perforation (CLP). Cytokine levels were measured from cheek bleeds 8 h after CLP, and mice were monitored for survival. Other cohorts were sacrificed 1 h after CLP for plasma and tissue. Septic obese mice had higher survival. At 8 h after sepsis, obese mice had higher adiponectin, leptin, and resistin but lower TNFα and IL-6 compared to non-obese mice. When stratified by 24-h survival, adipokines were not significantly different in obese and non-obese mice. TNFα and IL-6 were higher in non-obese, compared to obese, mice that died within 24 h of sepsis. Diet and to sepsis significantly impacted the cecal microbiome. IL-6 is a prognostic biomarker during early sepsis in non-obese and obese mice. A plausible mechanism for the survival difference in non-obese and obese mice may be the difference in gut microbiome and its evolution during sepsis.
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Affiliation(s)
- Lauren Bodilly
- Department of Pediatrics, University of Iowa, Iowa City, Iowa, USA
| | - Lauren Williamson
- Division of Critical Care Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Patrick Lahni
- Division of Critical Care Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Matthew N. Alder
- Division of Critical Care Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - David B. Haslam
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
- Division of Infectious Diseases, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Jennifer M. Kaplan
- Division of Critical Care Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
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Salgado DM, Rivera GM, Pinto WA, Rodríguez J, Acosta G, Castañeda DM, Vega R, Perdomo-Celis F, Bosch I, Narváez CF. Unique Immune Blood Markers Between Severe Dengue and Sepsis in Children. Pediatr Infect Dis J 2023; 42:792-800. [PMID: 37463399 DOI: 10.1097/inf.0000000000003990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
BACKGROUND Pediatric dengue and sepsis share clinical and pathophysiologic aspects. Multiple inflammatory and regulatory cytokines, decoy receptors and vascular permeability factors have been implicated in the pathogenesis of both diseases. The differential pattern and dynamic of these soluble factors, and the relationship with clinical severity between pediatric dengue and sepsis could offer new diagnosis and therapeutic strategies. METHODS We evaluated the concentration levels of 11 soluble factors with proinflammatory, regulatory and vascular permeability involvement, in plasma from children with dengue or sepsis, both clinically ranging from mild to severe, in the early, late and convalescence phases of the disease. RESULTS During early acute infection, children with sepsis exhibited specific higher concentration levels of IL-6, vascular endothelial growth factor (VEGF), and its soluble decoy receptor II (sVEGFR2) and lower concentration levels of IL-10 and the soluble tumor necrosis factor receptor 2 (sTNFR2), in comparison with children with severe dengue. In addition, the circulating amounts of soluble ST2, and VEGF/sVEGFR2 were widely associated with clinical and laboratory indicators of dengue severity, whereas secondary dengue virus infections were characterized by an enhanced cytokine response, relative to primary infections. In severe forms of dengue, or sepsis, the kinetics and the cytokines response during the late and convalescence phases of the disease also differentiate. CONCLUSIONS Dengue virus infection and septic processes in children are characterized by cytokine responses of a specific magnitude, pattern and kinetics, which are implicated in the pathophysiology and clinical outcome of these diseases.
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Affiliation(s)
- Doris M Salgado
- From the Departamento de Pediatría, Universidad Surcolombiana, E.S.E. Hospital Universitario de Neiva, Neiva, Huila, Colombia
| | - Gina M Rivera
- From the Departamento de Pediatría, Universidad Surcolombiana, E.S.E. Hospital Universitario de Neiva, Neiva, Huila, Colombia
| | - William A Pinto
- From the Departamento de Pediatría, Universidad Surcolombiana, E.S.E. Hospital Universitario de Neiva, Neiva, Huila, Colombia
| | - Jairo Rodríguez
- From the Departamento de Pediatría, Universidad Surcolombiana, E.S.E. Hospital Universitario de Neiva, Neiva, Huila, Colombia
| | - Gladys Acosta
- From the Departamento de Pediatría, Universidad Surcolombiana, E.S.E. Hospital Universitario de Neiva, Neiva, Huila, Colombia
| | - Diana M Castañeda
- División de Inmunología, Programa de Medicina, Facultad de Ciencias de la Salud, Universidad Surcolombiana, Neiva, Huila, Colombia
| | - Rocío Vega
- From the Departamento de Pediatría, Universidad Surcolombiana, E.S.E. Hospital Universitario de Neiva, Neiva, Huila, Colombia
| | - Federico Perdomo-Celis
- Instituto de Genética Humana, Facultad de Medicina, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - Irene Bosch
- Institute of Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA
| | - Carlos F Narváez
- División de Inmunología, Programa de Medicina, Facultad de Ciencias de la Salud, Universidad Surcolombiana, Neiva, Huila, Colombia
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Lin SP, Xu XJ, Liao C, Zhao N, Chen YY, Song H, Xu WQ, Liang J, Shen DY, Zhang JY, Shen HP, Zhao FY, Tang YM. The predictive utility of cytokines, procalcitonin and C-reactive protein among febrile pediatric hematology and oncology patients with severe sepsis or septic shock. Pediatr Hematol Oncol 2023; 41:1-14. [PMID: 37452625 DOI: 10.1080/08880018.2023.2233567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 06/15/2023] [Accepted: 06/24/2023] [Indexed: 07/18/2023]
Abstract
Severe sepsis and septic shock are life-threatening for pediatric hematology and oncology patient receiving chemotherapy. Th1/Th2 cytokines, C-reactive protein (CRP), and procalcitonin (PCT) are all thought to be associated with disease severity. The aim of this study was to prospectively verify the utility of Th1/Th2 cytokines and compare them with PCT and CRP in the prediction of adverse outcomes. Data on patients were collected from January 1, 2011, to December 31, 2020. Blood samples were taken for Th1/Th2 cytokine, CRP, and PCT measurements at the initial onset of infection. Severe infection (SI) was defined as severe sepsis or septic shock. Th1/Th2 cytokine levels were determined by using flow cytometric bead array technology. In total, 7,735 febrile episodes were included in this study. For SI prediction, the AUCs of IL-6, IL-10 and TNF-α were 0.814, 0.805 and 0.624, respectively, while IL-6 and IL-10 had high sensitivity and specificity. IL-6 > 220.85 pg/ml and IL-10 > 29.95 pg/ml had high odds ratio (OR) values of approximately 3.5 in the logistic regression. Within the subgroup analysis, for bloodstream infection (BSI) prediction, the AUCs of IL-10 and TNF-α were 0.757 and 0.694, respectively. For multiorgan dysfunction syndrome (MODS) prediction, the AUC of CRP was 0.606. The AUC of PCT for mortality prediction was 0.620. In conclusion, IL-6 and IL-10 provide good predictive value for the diagnosis of SI. For children with SI, IL-10 and TNF-α are associated with BSI, while CRP and PCT are associated with MODS and death, respectively.
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Affiliation(s)
- Shu-Peng Lin
- Division/Center of Pediatric Hematology-Oncology, Children's Hospital of Zhejiang University School of Medicine, Research Center of Pediatric Leukemia Diagnostic and Therapeutic Technology of Zhejiang Province, National Medical Research Center for Child Health, Hangzhou, China
| | - Xiao-Jun Xu
- Division/Center of Pediatric Hematology-Oncology, Children's Hospital of Zhejiang University School of Medicine, Research Center of Pediatric Leukemia Diagnostic and Therapeutic Technology of Zhejiang Province, National Medical Research Center for Child Health, Hangzhou, China
| | - Chan Liao
- Division/Center of Pediatric Hematology-Oncology, Children's Hospital of Zhejiang University School of Medicine, Research Center of Pediatric Leukemia Diagnostic and Therapeutic Technology of Zhejiang Province, National Medical Research Center for Child Health, Hangzhou, China
| | - Ning Zhao
- Division/Center of Pediatric Hematology-Oncology, Children's Hospital of Zhejiang University School of Medicine, Research Center of Pediatric Leukemia Diagnostic and Therapeutic Technology of Zhejiang Province, National Medical Research Center for Child Health, Hangzhou, China
| | - Yuan-Yuan Chen
- Division/Center of Pediatric Hematology-Oncology, Children's Hospital of Zhejiang University School of Medicine, Research Center of Pediatric Leukemia Diagnostic and Therapeutic Technology of Zhejiang Province, National Medical Research Center for Child Health, Hangzhou, China
| | - Hua Song
- Division/Center of Pediatric Hematology-Oncology, Children's Hospital of Zhejiang University School of Medicine, Research Center of Pediatric Leukemia Diagnostic and Therapeutic Technology of Zhejiang Province, National Medical Research Center for Child Health, Hangzhou, China
| | - Wei-Qun Xu
- Division/Center of Pediatric Hematology-Oncology, Children's Hospital of Zhejiang University School of Medicine, Research Center of Pediatric Leukemia Diagnostic and Therapeutic Technology of Zhejiang Province, National Medical Research Center for Child Health, Hangzhou, China
| | - Juan Liang
- Division/Center of Pediatric Hematology-Oncology, Children's Hospital of Zhejiang University School of Medicine, Research Center of Pediatric Leukemia Diagnostic and Therapeutic Technology of Zhejiang Province, National Medical Research Center for Child Health, Hangzhou, China
| | - Di-Ying Shen
- Division/Center of Pediatric Hematology-Oncology, Children's Hospital of Zhejiang University School of Medicine, Research Center of Pediatric Leukemia Diagnostic and Therapeutic Technology of Zhejiang Province, National Medical Research Center for Child Health, Hangzhou, China
| | - Jing-Ying Zhang
- Division/Center of Pediatric Hematology-Oncology, Children's Hospital of Zhejiang University School of Medicine, Research Center of Pediatric Leukemia Diagnostic and Therapeutic Technology of Zhejiang Province, National Medical Research Center for Child Health, Hangzhou, China
| | - He-Ping Shen
- Division/Center of Pediatric Hematology-Oncology, Children's Hospital of Zhejiang University School of Medicine, Research Center of Pediatric Leukemia Diagnostic and Therapeutic Technology of Zhejiang Province, National Medical Research Center for Child Health, Hangzhou, China
| | - Fen-Ying Zhao
- Division/Center of Pediatric Hematology-Oncology, Children's Hospital of Zhejiang University School of Medicine, Research Center of Pediatric Leukemia Diagnostic and Therapeutic Technology of Zhejiang Province, National Medical Research Center for Child Health, Hangzhou, China
| | - Yong-Min Tang
- Division/Center of Pediatric Hematology-Oncology, Children's Hospital of Zhejiang University School of Medicine, Research Center of Pediatric Leukemia Diagnostic and Therapeutic Technology of Zhejiang Province, National Medical Research Center for Child Health, Hangzhou, China
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Li XY, Liu M, Fu YJ, Jiang YJ, Zhang ZN. Alterations in levels of cytokine following treatment to predict outcome of sepsis: A meta-analysis. Cytokine 2023; 161:156056. [PMID: 36240721 DOI: 10.1016/j.cyto.2022.156056] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 09/19/2022] [Accepted: 09/24/2022] [Indexed: 11/05/2022]
Abstract
BACKGROUND The mortality rate of patients with sepsis has been increasing in recent years. Alterations of biomarkers levels during treatment are important in evaluating treatment efficacy and predicting outcomes in sepsis. This meta-analysis investigated the relationship between changes in cytokine levels after treatment compared with those on hospital admission, and their relationship with the prognosis of patients with sepsis. METHODS From conception until August 4, 2021, a complete literature search of the PubMed, Web of Science, and Cochrane Library electronic databases was done. Observational studies where the outcomes of sepsis patients were divided into non-survivors and survivors and which reported cytokine levels at least before treatment in ICU were included in the current study. Standardized mean difference (SMD) with 95% confidence intervals (CI) values from individual studies were pooled using a random-effects model. Quality assessment, subgroup analysis, publication bias, and sensitivity analyses were all carried out. RESULTS A total of 2570 patients with sepsis from 25 eligible studies were included, and 14 of them measured the cytokine levels before and after treatment in ICU. Among IL-6, TNF-α, IL-1β and IL-10 levels, those of IL-6 were significantly lower after treatment in ICU than at baseline in patients with sepsis in the survival group (SMD = -0.69, P < 0.0001), but were comparable in the non-survival group (SMD = -0.99, P = 0.0575). Similarly, post-treatment TNF-α levels were significantly lower than those at baseline only in patients with sepsis in the survival group (SMD = -0.44, P < 0.0001), but not in the non-survival group (SMD =-0.17, P = 0.0842). CONCLUSION This meta-analysis shows that reduced IL-6 and TNF-α levels after sepsis treatment in ICU may be indicators of better prognosis and survival of patients with sepsis.
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Affiliation(s)
- Xin-Yao Li
- NHC Key Laboratory of AIDS Immunology (China Medical University), National Clinical Research Center for Laboratory Medicine, The First Hospital of China Medical University, Shenyang 110001, China; Key Laboratory of AIDS Immunology, Chinese Academy of Medical Sciences, Shenyang 110001, China
| | - Mei Liu
- NHC Key Laboratory of AIDS Immunology (China Medical University), National Clinical Research Center for Laboratory Medicine, The First Hospital of China Medical University, Shenyang 110001, China; Key Laboratory of AIDS Immunology, Chinese Academy of Medical Sciences, Shenyang 110001, China
| | - Ya-Jing Fu
- NHC Key Laboratory of AIDS Immunology (China Medical University), National Clinical Research Center for Laboratory Medicine, The First Hospital of China Medical University, Shenyang 110001, China; Key Laboratory of AIDS Immunology, Chinese Academy of Medical Sciences, Shenyang 110001, China
| | - Yong-Jun Jiang
- NHC Key Laboratory of AIDS Immunology (China Medical University), National Clinical Research Center for Laboratory Medicine, The First Hospital of China Medical University, Shenyang 110001, China; Key Laboratory of AIDS Immunology, Chinese Academy of Medical Sciences, Shenyang 110001, China
| | - Zi-Ning Zhang
- NHC Key Laboratory of AIDS Immunology (China Medical University), National Clinical Research Center for Laboratory Medicine, The First Hospital of China Medical University, Shenyang 110001, China; Key Laboratory of AIDS Immunology, Chinese Academy of Medical Sciences, Shenyang 110001, China.
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Challenging molecular dogmas in human sepsis using mathematical reasoning. EBioMedicine 2022; 80:104031. [PMID: 35523015 PMCID: PMC9079163 DOI: 10.1016/j.ebiom.2022.104031] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 03/30/2022] [Accepted: 04/11/2022] [Indexed: 01/01/2023] Open
Abstract
Sepsis is defined as a dysregulated host-response to infection, across all ages and pathogens. What defines a dysregulated state remains intensively researched but incompletely understood. Here, we dissect the meaning of this definition and its importance for the diagnosis and management of sepsis. We deliberate on pathophysiological features and dogmas that range from cytokine storms and immune paralysis to dormancy and altered homeostasis setpoints. Mathematical reasoning, used to test for plausibility, reveals three interlinked cardinal rules governing host-response trajectories in sepsis. Rule one highlights that the amplitude of the immune response while important is not sufficient and is strictly dependent on rule two, specifying bioenergetic capacity and are together dynamically driven by rule three, delineating stability and alterations in setpoints. We consider these rules and associated pathophysiological parameters for guiding data-science and artificial intelligence mining of multi-omics and big-data for improving the precision of diagnostic and therapeutic approaches to sepsis. Funding PG funded by the European Regional Development Fund and Welsh Government (Ser Cymru programme – Project Sepsis).
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Badke CM, Carroll MS, Weese-Mayer DE, Sanchez-Pinto LN. Association Between Heart Rate Variability and Inflammatory Biomarkers in Critically Ill Children. Pediatr Crit Care Med 2022; 23:e289-e294. [PMID: 35293369 DOI: 10.1097/pcc.0000000000002936] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES The autonomic nervous system (ANS) can both modulate and be modulated by the inflammatory response during critical illness. We aimed to determine whether heart rate variability (HRV), a measure of ANS function, is associated with proinflammatory biomarker levels in critically ill children. DESIGN Two cohorts were analyzed. The first was a prospective observational cohort from August 2018 to August 2020 who had plasma proinflammatory cytokine measurements within 72 hours of admission, including tumor necrosis factor-α, interleukin (IL)-1β, IL-6, and IL-8. The second was a retrospective cohort from June 2012 to August 2020 who had at least one C-reactive protein (CRP) measurement within 72 hours of admission. SETTING Forty-six-bed PICU. PATIENTS Critically ill children in either cohort who had continuous heart rate data available from the bedside monitors. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS Sixty-two patients were included in the prospective cohort and 599 patients in the retrospective cohort. HRV was measured using the age-adjusted integer heart rate variability (HRVi), which is the sd of the heart rate sampled every 1 second over 5 consecutive minutes. The median HRVi was measured in the 12-hour period ending 30 minutes prior to inflammatory biomarker collection. HRVi was inversely correlated with IL-6, IL-8, and CRP levels (p ≤ 0.02); correlation with IL-8 and CRP persisted after adjusting for Pediatric Risk of Mortality III and age, and median HR and age (p < 0.001). CONCLUSIONS HRVi is inversely correlated with IL-6, IL-8, and CRP. Further studies are needed to validate this measure as a proxy for a proinflammatory state.
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Affiliation(s)
- Colleen M Badke
- Division of Critical Care Medicine, Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL
| | - Michael S Carroll
- Department of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, IL
- Data Analytics and Reporting, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL
| | - Debra E Weese-Mayer
- Department of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, IL
- Department of Pediatrics, Stanley Manne Children's Research Institute, Chicago, IL
- Division of Autonomic Medicine, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL
| | - L Nelson Sanchez-Pinto
- Division of Critical Care Medicine, Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL
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Antimicrobial and Immunomodulatory Effects of Selected Chemokine and Antimicrobial Peptide on Cytokine Profile during Salmonella Typhimurium Infection in Mouse. Antibiotics (Basel) 2022; 11:antibiotics11050607. [PMID: 35625251 PMCID: PMC9137564 DOI: 10.3390/antibiotics11050607] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 04/25/2022] [Accepted: 04/27/2022] [Indexed: 02/05/2023] Open
Abstract
The antimicrobial and immunomodulatory capacities of the peptide Css54 and the chemokine MCP-1 were tested. The first, a peptide isolated from the venom of the scorpion Centruroides suffusus suffusus was synthesized chemically. In contrast, the second is a monocyte chemoattractant expressed as a recombinant protein in our lab. It was observed in vitro that Css54 inhibited the growth of Salmonella enterica serovar Typhimurium (6.2 µg/mL). At high concentrations, it was toxic to macrophages (25 µg/mL), activated macrophage phagocytosis (1.5 µg/mL), and bound Salmonella LPS (3 µg/mL). On the other hand, the recombinant MCP-1 neither inhibited the growth of Salmonella Typhimurium nor was it toxic to macrophages (up to 25 µg/mL), nor activated macrophage phagocytosis or bound Salmonella LPS (up to 3 µg/mL). Although it was observed in vivo in mice Balb/C that both Css54 and MCP-1 did not resolve the intraperitoneal infection by S. Typhimurium, Css54 decreased the expression of IL-6 and increased IL-10, IL-12p70, and TNF-α levels; meanwhile, MCP-1 decreased the expression of IFN-γ and increased IL-12p70 and TNF-α. It was also observed that the combination of both molecules Css54 and MCP-1 increased the expression of IL-10 and TNF-α.
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11
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Menon K, Schlapbach LJ, Akech S, Argent A, Biban P, Carrol ED, Chiotos K, Jobayer Chisti M, Evans IVR, Inwald DP, Ishimine P, Kissoon N, Lodha R, Nadel S, Oliveira CF, Peters M, Sadeghirad B, Scott HF, de Souza DC, Tissieres P, Watson RS, Wiens MO, Wynn JL, Zimmerman JJ, Sorce LR. Criteria for Pediatric Sepsis-A Systematic Review and Meta-Analysis by the Pediatric Sepsis Definition Taskforce. Crit Care Med 2022; 50:21-36. [PMID: 34612847 PMCID: PMC8670345 DOI: 10.1097/ccm.0000000000005294] [Citation(s) in RCA: 43] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
OBJECTIVE To determine the associations of demographic, clinical, laboratory, organ dysfunction, and illness severity variable values with: 1) sepsis, severe sepsis, or septic shock in children with infection and 2) multiple organ dysfunction or death in children with sepsis, severe sepsis, or septic shock. DATA SOURCES MEDLINE, Embase, and the Cochrane Central Register of Controlled Trials were searched from January 1, 2004, and November 16, 2020. STUDY SELECTION Case-control studies, cohort studies, and randomized controlled trials in children greater than or equal to 37-week-old postconception to 18 years with suspected or confirmed infection, which included the terms "sepsis," "septicemia," or "septic shock" in the title or abstract. DATA EXTRACTION Study characteristics, patient demographics, clinical signs or interventions, laboratory values, organ dysfunction measures, and illness severity scores were extracted from eligible articles. Random-effects meta-analysis was performed. DATA SYNTHESIS One hundred and six studies met eligibility criteria of which 81 were included in the meta-analysis. Sixteen studies (9,629 patients) provided data for the sepsis, severe sepsis, or septic shock outcome and 71 studies (154,674 patients) for the mortality outcome. In children with infection, decreased level of consciousness and higher Pediatric Risk of Mortality scores were associated with sepsis/severe sepsis. In children with sepsis/severe sepsis/septic shock, chronic conditions, oncologic diagnosis, use of vasoactive/inotropic agents, mechanical ventilation, serum lactate, platelet count, fibrinogen, procalcitonin, multi-organ dysfunction syndrome, Pediatric Logistic Organ Dysfunction score, Pediatric Index of Mortality-3, and Pediatric Risk of Mortality score each demonstrated significant and consistent associations with mortality. Pooled mortality rates varied among high-, upper middle-, and lower middle-income countries for patients with sepsis, severe sepsis, and septic shock (p < 0.0001). CONCLUSIONS Strong associations of several markers of organ dysfunction with the outcomes of interest among infected and septic children support their inclusion in the data validation phase of the Pediatric Sepsis Definition Taskforce.
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Affiliation(s)
- Kusum Menon
- Department of Pediatrics, Children’s Hospital of Eastern Ontario, University of Ottawa, Ottawa, ON, Canada
| | - Luregn J. Schlapbach
- Pediatric and Neonatal ICU, University Children`s Hospital Zurich, Zurich, Switzerland, and Child Health Research Centre, The University of Queensland, Brisbane, QLD, Australia
| | - Samuel Akech
- KEMRI Wellcome Trust Research Program, Nairobi, Kenya
| | - Andrew Argent
- Department of Paediatrics and Child Health, Red Cross War Memorial Children’s Hospital and University of Cape Town, Cape Town, South Africa
| | - Paolo Biban
- Department of Paediatrics, Verona University Hospital, Verona, Italy
| | - Enitan D. Carrol
- Department of Clinical Infection Microbiology and Immunology, University of Liverpool Institute of Infection, Veterinary and Ecological Sciences, Liverpool, United Kingdom
| | | | | | - Idris V. R. Evans
- Department of Critical Care Medicine, University of Pittsburgh School of Medicine, and The Clinical Research, Investigation, and Systems Modeling of Acute Illness (CRISMA) Center, Pittsburgh, PA
| | - David P. Inwald
- Paediatric Intensive Care Unit, Addenbrooke’s Hospital, Cambridge University Hospitals NHS Foundation Trust, Cambridge, United Kingdom
| | - Paul Ishimine
- Departments of Emergency Medicine and Pediatrics, University of California San Diego School of Medicine, La Jolla, CA
| | - Niranjan Kissoon
- Department of Pediatrics, University of British Columbia and British Columbia Children’s Hospital, Vancouver, BC, Canada
| | - Rakesh Lodha
- All India Institute of Medical Sciences, Delhi, India
| | - Simon Nadel
- St. Mary’s Hospital, Imperial College Healthcare NHS Trust, and Imperial College London, London, United Kingdom
| | | | - Mark Peters
- University College London Great Ormond Street Institute of Child Health, London, United Kingdom
| | - Benham Sadeghirad
- Departments of Anesthesia and Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada
| | - Halden F. Scott
- Departments of Pediatrics and Emergency Medicine, University of Colorado School of Medicine, Aurora, CO
| | - Daniela C. de Souza
- Departments of Pediatrics, Hospital Sírio-Libanês and Hospital Universitário da Universidade de São Paulo, São Paolo, Brazil
| | - Pierre Tissieres
- Pediatric Intensive Care, AP-HP Paris Saclay University, Bicêtre Hospital, Le Kremlin-Bicêtre, France
| | - R. Scott Watson
- Division of Pediatric Critical Care Medicine, Department of Pediatrics, University of Washington School of Medicine, Seattle, WA
| | - Matthew O. Wiens
- University of British Columbia, Vancouver, BC, Canada
- Mbarara University of Science and Technology, Mbarara, Uganda
| | - James L. Wynn
- Department of Pediatrics, University of Florida, Gainesville, FL
| | - Jerry J. Zimmerman
- Division of Pediatric Critical Care Medicine, Department of Pediatrics, University of Washington School of Medicine, Seattle, WA
| | - Lauren R. Sorce
- Ann & Robert H. Lurie Children’s Hospital and Department of Pediatrics, Northwestern University Feinberg School of Medicine, Lurie Children’s Pediatric Research & Evidence Synthesis Center (PRECIISE): A JBI Affiliated Group, Chicago, IL
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12
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Novel Biomarkers Differentiating Viral from Bacterial Infection in Febrile Children: Future Perspectives for Management in Clinical Praxis. CHILDREN (BASEL, SWITZERLAND) 2021; 8:children8111070. [PMID: 34828783 PMCID: PMC8623137 DOI: 10.3390/children8111070] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 10/31/2021] [Accepted: 11/18/2021] [Indexed: 01/12/2023]
Abstract
Differentiating viral from bacterial infections in febrile children is challenging and often leads to an unnecessary use of antibiotics. There is a great need for more accurate diagnostic tools. New molecular methods have improved the particular diagnostics of viral respiratory tract infections, but defining etiology can still be challenging, as certain viruses are frequently detected in asymptomatic children. For the detection of bacterial infections, time consuming cultures with limited sensitivity are still the gold standard. As a response to infection, the immune system elicits a cascade of events, which aims to eliminate the invading pathogen. Recent studies have focused on these host–pathogen interactions to identify pathogen-specific biomarkers (gene expression profiles), or “pathogen signatures”, as potential future diagnostic tools. Other studies have assessed combinations of traditional bacterial and viral biomarkers (C-reactive protein, interleukins, myxovirus resistance protein A, procalcitonin, tumor necrosis factor-related apoptosis-inducing ligand) to establish etiology. In this review we discuss the performance of such novel diagnostics and their potential role in clinical praxis. In conclusion, there are several promising novel biomarkers in the pipeline, but well-designed randomized controlled trials are needed to evaluate the safety of using these novel biomarkers to guide clinical decisions.
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Oh C, Park B, Li C, Maldarelli C, Schaefer JL, Datta-Chaudhuri T, Bohn PW. Electrochemical Immunosensing of Interleukin-6 in Human Cerebrospinal Fluid and Human Serum as an Early Biomarker for Traumatic Brain Injury. ACS MEASUREMENT SCIENCE AU 2021; 1:65-73. [PMID: 36785744 PMCID: PMC9838612 DOI: 10.1021/acsmeasuresciau.1c00013] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
In this work, we develop a label-free electrochemical immunosensor for the detection of interleukin-6 (IL-6) in human cerebrospinal fluid (CSF) and serum for diagnostic and therapeutic monitoring. The IL-6 immunosensor is fabricated from gold interdigitated electrode arrays (IDEAs) that are modified with IL-6 antibodies for direct antigen recognition and capture. A rigorous surface analysis of the sensor architecture was conducted to ensure high structural fidelity and performance. Electrochemical characterization was conducted by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS), and sensing was performed using differential pulse voltammetry (DPV). The DPV peak current was used to quantify IL-6 in buffer, CSF, and serum in the range 1 pg mL-1 < [IL-6] < 1 μg mL-1. The IL-6 IDEA sensor achieved a limit of detection (LOD) of 1.63 pg mL-1 in PBS, 2.34 pg mL-1 in human CSF, and 11.83 pg mL-1 in human serum. The sensor response is linear in the concentration range 10 pg mL-1 < [IL-6] < 10 ng mL-1, and the sensor is selective for IL-6 over other common cytokines, including IL-10 and TNF-α. EIS measurements showed that the resistance to charge transfer, R CT, decreases upon IL-6 binding, an observation attributed to a structural change upon Ab-Ag binding that opens up the architecture so that the redox probe can more easily access the electrode surface. The IL-6 IDEA sensor can be used as a point-of-care diagnostic tool to deliver rapid results (∼3 min) in clinical settings for traumatic brain injury, and potentially address the unmet need for effective diagnostic and prognostic tools for other cytokine-related illnesses, such as sepsis and COVID-19 induced cytokine storms. Given the interdigitated electrode form factor, it is likely that the performance of the sensor can be further improved through redox cycling.
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Affiliation(s)
- Christiana Oh
- Department
of Chemical and Biomolecular Engineering, University of Notre Dame, Notre
Dame, Indiana 46556, United States
| | - Bumjun Park
- Department
of Chemical and Biomolecular Engineering, University of Notre Dame, Notre
Dame, Indiana 46556, United States
| | - Chunyan Li
- Institute
for Bioelectronic Medicine, Feinstein Institutes
for Medical Research, Manhasset, New York 11030, United States
| | - Charles Maldarelli
- The
Benjamin Levich Institute for Physicochemical Hydrodynamics and Department
of Chemical Engineering, The City College
of New York, New York, New York 10031, United States
| | - Jennifer L. Schaefer
- Department
of Chemical and Biomolecular Engineering, University of Notre Dame, Notre
Dame, Indiana 46556, United States
| | - Timir Datta-Chaudhuri
- Institute
for Bioelectronic Medicine, Feinstein Institutes
for Medical Research, Manhasset, New York 11030, United States
| | - Paul W. Bohn
- Department
of Chemical and Biomolecular Engineering, University of Notre Dame, Notre
Dame, Indiana 46556, United States
- Department
of Chemistry and Biochemistry, University
of Notre Dame, Notre
Dame, Indiana 46556, United States
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Ravikumar N, Bansal A. Serum Thrombomodulin to Predict Severity in Pediatric Sepsis-Fancy or Frenzy? Indian J Pediatr 2021; 88:851-852. [PMID: 34169457 DOI: 10.1007/s12098-021-03839-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 06/03/2021] [Indexed: 11/25/2022]
Affiliation(s)
- Namita Ravikumar
- Department of Pediatrics, All India Institute of Medical Education and Research, New Delhi, India
| | - Arun Bansal
- Department of Pediatrics, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India.
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15
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Yang Y, Li XY, Li LC, Xiao J, Zhu YM, Tian Y, Sheng YM, Chen Y, Wang JG, Jin SW. γδ T/Interleukin-17A Contributes to the Effect of Maresin Conjugates in Tissue Regeneration 1 on Lipopolysaccharide-Induced Cardiac Injury. Front Immunol 2021; 12:674542. [PMID: 33981320 PMCID: PMC8107383 DOI: 10.3389/fimmu.2021.674542] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 04/06/2021] [Indexed: 12/31/2022] Open
Abstract
The mechanisms underlying sepsis-induced cardiomyopathy (SIC) remain poorly understood, and there are no specific therapeutics for SIC. We investigated the effects of maresin conjugates in tissue regeneration 1 (MCTR1) on SIC and explored its potential mechanisms. The experiments were conducted using an endotoxemia model induced by lipopolysaccharide (LPS). Mice were given MCTR1 intravenously 6 h after LPS stimulation. Echocardiography was performed to assess cardiac function 12 h after LPS administration. Treatment with MCTR1 significantly enhanced cardiac function and reduced LPS-induced increase of mRNA expression levels of inflammation cytokines. Transcriptomic analysis indicated that MCTR1 inhibited neutrophil chemotaxis via the IL-17 signaling pathway. We confirmed that MCTR1 reduced the expressions of neutrophil chemoattractants and neutrophil infiltration in the LPS-stimulated hearts. MCTR1 also resulted in a considerable reduction in IL-17A production mainly derived from γδ T cells. Moreover, our results provided the first evidence that neutralizing IL-17A or depletion of γδ T cells markedly decreased neutrophil recruitment and enhanced cardiac function in LPS-induced cardiac injury. These results suggest that MCTR1 alleviates neutrophil infiltration thereby improves cardiac function in LPS-induced cardiac injury via the IL-17 signaling pathway. Thus, MCTR1 represented a novel therapeutic strategy for patients with SIC.
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Affiliation(s)
- Yi Yang
- Department of Anesthesia and Critical Care, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xin-Yu Li
- Department of Anesthesia and Critical Care, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Lin-Chao Li
- Department of Anesthesia and Critical Care, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Ji Xiao
- Department of Anesthesia and Critical Care, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yin-Meng Zhu
- Department of Anesthesia and Critical Care, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yang Tian
- Department of Anesthesia and Critical Care, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yong-Mao Sheng
- Department of Anesthesia and Critical Care, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yan Chen
- Department of Anesthesia and Critical Care, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Jian-Guang Wang
- Department of Anesthesia and Critical Care, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Biochemistry, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Sheng-Wei Jin
- Department of Anesthesia and Critical Care, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
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Crapnell RD, Jesadabundit W, García-Miranda Ferrari A, Dempsey-Hibbert NC, Peeters M, Tridente A, Chailapakul O, Banks CE. Toward the Rapid Diagnosis of Sepsis: Detecting Interleukin-6 in Blood Plasma Using Functionalized Screen-Printed Electrodes with a Thermal Detection Methodology. Anal Chem 2021; 93:5931-5938. [PMID: 33793190 DOI: 10.1021/acs.analchem.1c00417] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
This paper reports the detection of the inflammatory and sepsis-related biomarker, interleukin-6 (IL-6), in human blood plasma using functionalized screen-printed electrodes (SPEs) in conjunction with a thermal detection methodology, termed heat-transfer method (HTM). SPEs are functionalized with antibodies specific for IL-6 through electrodeposition of a diazonium linking group and N'-ethylcarbodiimide hydrochloride (EDC) coupling, which was tracked through the use of cyclic voltammetry and Raman spectroscopy. The functionalized SPEs are mounted inside an additively manufactured flow cell and connected to the HTM device. We demonstrate the ability to detect IL-6 at clinically relevant concentrations in PBS buffer (pH = 7.4) with no significant interference from the similarly sized sepsis-related biomarker procalcitonin (PCT). The limit of detection (3σ) of the system is calculated to correspond to 3.4 ± 0.2 pg mL-1 with a working range spanning the physiologically relevant concentration levels in both healthy individuals and patients with sepsis, indicating the sensitivity of the sensor is suitable for the application. Further experiments helped provide a proof-of-application through the detection of IL-6 in blood plasma with no significant interference observed from PCT or the constituents of the medium. Due to the selectivity, sensitivity, straightforward operation, and low cost of production, this sensor platform has the potential for use as a traffic light sensor for the multidetection of inflammatory biomarkers for the diagnosis of sepsis and other conditions in which the rapid testing of blood biomarkers has vital clinical application.
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Affiliation(s)
- Robert D Crapnell
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, Manchester M1 5GD, United Kingdom
| | - Whitchuta Jesadabundit
- Electrochemistry and Optical Spectroscopy Center of Excellence, Department of Chemistry, Faculty of Science, Chulalongkorn University, Patumwan, Bangkok 10330, Thailand
| | | | - Nina C Dempsey-Hibbert
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, Manchester M1 5GD, United Kingdom
| | - Marloes Peeters
- Newcastle University, School of Engineering, Merz Court, Claremont Road, Newcastle Upon Tyne NE1 7RU, United Kingdom
| | - Ascanio Tridente
- Intensive Care Unit, Whiston Hospital, St Helens and Knowsley Teaching Hospitals NHS Trust, Warrington Road, Prescot L35 5DR, United Kingdom
| | - Orawon Chailapakul
- Electrochemistry and Optical Spectroscopy Center of Excellence, Department of Chemistry, Faculty of Science, Chulalongkorn University, Patumwan, Bangkok 10330, Thailand
| | - Craig E Banks
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, Manchester M1 5GD, United Kingdom
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