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Milano C, Montali M, Barachini S, Burzi IS, Pratesi F, Petrozzi L, Chico L, Morganti R, Gambino G, Rossi L, Ceravolo R, Siciliano G, Migliorini P, Petrini I, Pizzanelli C. Increased production of inflammatory cytokines by circulating monocytes in mesial temporal lobe epilepsy: A possible role in drug resistance. J Neuroimmunol 2024; 386:578272. [PMID: 38160122 DOI: 10.1016/j.jneuroim.2023.578272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 12/05/2023] [Accepted: 12/20/2023] [Indexed: 01/03/2024]
Abstract
We analyzed peripheral blood mononuclear cells (PBMCs) and serum inflammatory biomarkers in patients with mesial temporal lobe epilepsy (drug-resistant - DR, vs. drug-sensitive - DS). Patients with epilepsy showed higher levels of serum CCL2, CCL3, IL-8 and AOPP, and lower levels of FRAP and thiols compared to healthy controls (HC). Although none of the serum biomarkers distinguished DR from DS patients, when analysing intracellular cytokines after in vitro stimulation, DR patients presented higher percentages of IL-1β and IL-6 positive monocytes compared to DS patients and HC. Circulating innate immune cells might be implicated in DR epilepsy and constitute potential new targets for treatments.
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Affiliation(s)
- C Milano
- Department of Clinical and Experimental Medicine, Neurology Unit, University of Pisa, Pisa, Italy.
| | - M Montali
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - S Barachini
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - I S Burzi
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - F Pratesi
- Department of Translational Research and New Technology in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - L Petrozzi
- Department of Clinical and Experimental Medicine, Neurology Unit, University of Pisa, Pisa, Italy
| | - L Chico
- Department of Clinical and Experimental Medicine, Neurology Unit, University of Pisa, Pisa, Italy
| | - R Morganti
- Section of Statistics, University of Pisa, Pisa, Italy
| | - G Gambino
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - L Rossi
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - R Ceravolo
- Department of Clinical and Experimental Medicine, Neurology Unit, University of Pisa, Pisa, Italy
| | - G Siciliano
- Department of Clinical and Experimental Medicine, Neurology Unit, University of Pisa, Pisa, Italy
| | - P Migliorini
- Department of Clinical and Experimental Medicine, Clinical Immunology and Allergy Unit, University of Pisa, Pisa, Italy
| | - I Petrini
- Department of Translational Research and New Technology in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - C Pizzanelli
- Department of Clinical and Experimental Medicine, Neurology Unit, University of Pisa, Pisa, Italy.
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Henry C, Cockburn C, Simpson MH, Budd S, Wang C, Dinov D. The baseline risk of multiple febrile seizures in the same febrile illness: a meta-analysis. Eur J Pediatr 2022; 181:2201-2213. [PMID: 35292852 PMCID: PMC9468602 DOI: 10.1007/s00431-022-04431-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 02/24/2022] [Accepted: 02/27/2022] [Indexed: 02/02/2023]
Abstract
The baseline risk for multiple febrile seizures within the same febrile illness is largely unknown. Estimates range from 5 to 30%. Imprecise estimates can lead to incorrectly powering studies investigating the management of febrile seizures. To estimate the risk of multiple febrile seizures in the same febrile illness, we systematically reviewed and conducted a meta-analysis of studies from January 2000 to December 2021 that contained data for the number of children for both simple and complex febrile seizures in the same febrile illness. We searched MEDLINE, EMBASE, and Web of Science for randomized, quasi-randomized, prospective, and retrospective trials that involved children with febrile seizures. A total of 23,131 febrile illnesses with febrile seizures met the inclusion criteria. The estimated baseline risk of multiple febrile seizures in the same febrile illness was 17% (95% CI, 16-19%). However, the 30 cohorts that included both admitted and non-admitted patients had a lower percentage of multiple FSs within the same illness (14%; 95% CI, 12-15%) than the 30 cohorts that enrolled only admitted patients (20%; 95% CI, 16-25%). CONCLUSION Researchers can use estimates in this paper to design future studies. Taking into the account the substantial heterogeneity between countries and studies, clinicians could cautiously use our estimates in their clinical assessment and be better able to set parental expectations about a child's chances of having another febrile seizure during the current illness. TRIAL REGISTRATION PROSPERO CRD42020191784. Registered July 18, 2020. WHAT IS KNOWN • There is renewed interest in the diagnostic workup and prophylactic treatment of febrile seizures to prevent repeat seizures in the same febrile illness. • There is a lack of accurate estimates of the baseline risk for multiple febrile seizures in the same illness to properly design studies investigating management. WHAT IS NEW • This study provides the most robust estimates for the baseline risk for multiple febrile seizures in the same illness.
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Affiliation(s)
- Christopher Henry
- Department of Neurology, Children's Hospital of Richmond, VCU Health System, Richmond, VA, USA.
| | - Chelsea Cockburn
- Virginia Commonwealth University School of Medicine, Richmond, VA, USA
- Department of Pediatrics, Children's Hospital of Pittsburgh, UPMC, Pittsburgh, PA, USA
| | - Mary Helen Simpson
- Virginia Commonwealth University School of Medicine, Richmond, VA, USA
- Department of Pediatrics, Golisano Children's Hospital, URMC, Rochester, NY, USA
| | - Serenity Budd
- Department of Biostatistics, Virginia Commonwealth University, Richmond, VA, USA
| | - Chen Wang
- Department of Biostatistics, Virginia Commonwealth University, Richmond, VA, USA
| | - Darina Dinov
- Department of Neurology, Children's Hospital of Richmond, VCU Health System, Richmond, VA, USA
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Cilberti MG, Santillo A, Polito AN, Messina G, della Malva A, Caroprese M, Sevi A, Albenzio M. Cytokine Pattern of Peripheral Blood Mononuclear Cells Isolated from Children Affected by Generalized Epilepsy Treated with Different Protein Fractions of Meat Sources. Nutrients 2022; 14:nu14112243. [PMID: 35684043 PMCID: PMC9182632 DOI: 10.3390/nu14112243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 05/24/2022] [Accepted: 05/25/2022] [Indexed: 02/01/2023] Open
Abstract
The objective of the present study was the evaluation of cytokine patterns in terms of TNF-α, IL-10, IL-6, and IL-1β secretion in peripheral blood mononuclear cell (PBMC) supernatants isolated from blood of children affected by generalized epilepsy and treated in vitro with myofibrillar, sarcoplasmic, and total protein fractions of meat and fish sources. Children with generalized epilepsy (EC group, n = 16) and children without any clinical signs of disease, representing a control group (CC group n = 16), were recruited at the Complex Structure of Neuropsychiatry Childhood-Adolescence of Policlinico Riuniti (Foggia, Italy). Myofibrillar (MYO), sarcoplasmic (SA), and total (TOT) protein fractions were obtained from longissimus thoracis muscle of beef (BF) and lamb (LA); from pectoralis muscle of chicken (CH); and from dorsal white muscle of sole (Solea solea, SO), European hake (Merluccius merluccius, EH), and sea bass fish (Dicentrarchus labrax, SB), respectively. PBMCs were isolated from peripheral blood of EC and CC groups, and an in vitro stimulation in the presence of 100 μg/mL for each protein fraction from different meat sources was performed. Data were classified according to three different levels of cytokines produced from the EC group relative to the CC group. TNF-α, IL-10, and IL-6 levels were not affected by different meat fractions and meat sources; on the contrary, IL-1β levels were found to be significantly affected by the tested proteins fractions, as well as different meat sources, in high-level cytokine group. On average, the protein fractions obtained from LB, BF, and CH meat sources showed a higher level of IL-1β than the protein fractions obtained from EH and SB fish samples. When all cytokine classes were analyzed, on average, a significant effect was observed for IL-10, IL-1β, and TNF-α. Data obtained in the present study evidence that the nutritional strategy based on protein from fish and meat sources may modulate the immunological cytokine pattern of infants with generalized epilepsy.
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Affiliation(s)
- Maria Giovanna Cilberti
- Department of Agriculture, Food, Natural Resources, and Engineering (DAFNE), University of Foggia, 71122 Foggia, Italy; (M.G.C.); (A.d.M.); (M.C.); (A.S.); (M.A.)
| | - Antonella Santillo
- Department of Agriculture, Food, Natural Resources, and Engineering (DAFNE), University of Foggia, 71122 Foggia, Italy; (M.G.C.); (A.d.M.); (M.C.); (A.S.); (M.A.)
- Correspondence:
| | - Anna N. Polito
- Complex Structure of Neuropsychiatry Childhood-Adolescence of Ospedali Riuniti of Foggia, Viale Pinto, 71122 Foggia, Italy;
| | - Giovanni Messina
- Department of Clinical and Experimental Medicine, University of Foggia, 71122 Foggia, Italy;
| | - Antonella della Malva
- Department of Agriculture, Food, Natural Resources, and Engineering (DAFNE), University of Foggia, 71122 Foggia, Italy; (M.G.C.); (A.d.M.); (M.C.); (A.S.); (M.A.)
| | - Mariangela Caroprese
- Department of Agriculture, Food, Natural Resources, and Engineering (DAFNE), University of Foggia, 71122 Foggia, Italy; (M.G.C.); (A.d.M.); (M.C.); (A.S.); (M.A.)
| | - Agostino Sevi
- Department of Agriculture, Food, Natural Resources, and Engineering (DAFNE), University of Foggia, 71122 Foggia, Italy; (M.G.C.); (A.d.M.); (M.C.); (A.S.); (M.A.)
| | - Marzia Albenzio
- Department of Agriculture, Food, Natural Resources, and Engineering (DAFNE), University of Foggia, 71122 Foggia, Italy; (M.G.C.); (A.d.M.); (M.C.); (A.S.); (M.A.)
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Maniu I, Costea R, Maniu G, Neamtu BM. Inflammatory Biomarkers in Febrile Seizure: A Comprehensive Bibliometric, Review and Visualization Analysis. Brain Sci 2021; 11:brainsci11081077. [PMID: 34439695 PMCID: PMC8394500 DOI: 10.3390/brainsci11081077] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 08/05/2021] [Accepted: 08/13/2021] [Indexed: 01/09/2023] Open
Abstract
Background: Inflammatory markers association with many diseases is the subject of many articles and reviews. This study presents a comprehensive bibliometric review and visualization analysis of inflammatory biomarkers (IB) in the context of febrile seizure (FS) patients. Methods: The study focused on IB in FS using (1) bibliometric analysis specific indicators and maps in order to analyze and present the network of authors, journals, universities, and countries, and (2) automated literature screening and unsupervised clustering approach for filtering and topic cluster identification. Results: We conducted a literature mining search on FS research, specifically IB in the context of FS, using the automated tools VOSviewer and Bibliometrix. Indices of the inflammatory response (in the context of febrile seizures) identified by the literature mining are (pro/anti-inflammatory) cytokines, such as interleukin IL-1β, IL-6, IL-8, I-10, IL-22, tumor necrosis factor (TNF-α), neutrophil-to-lymphocyte ratio (NLR), mean platelet volume (MPV), platelet count (PLT), and red blood cell distribution width (RDW). The resulted bibliometric maps and topic clusters offer a comprehensive overview, the status and leading trends on existing research of inflammatory biomarkers in FS. Conclusion: The analysis using bibliometrics and review with graphical presentations can be useful in investigating and (better) understanding the relationship between FS and IB.
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Affiliation(s)
- Ionela Maniu
- Research Center in Informatics and Information Technology, Mathematics and Informatics Department, Faculty of Sciences, Lucian Blaga University, 550025 Sibiu, Romania;
- Research Compartment, Pediatric Clinical Hospital, 550166 Sibiu, Romania;
- Correspondence: (I.M.); (B.M.N.)
| | - Raluca Costea
- Research Compartment, Pediatric Clinical Hospital, 550166 Sibiu, Romania;
- Pediatric Neurology Department, Pediatric Clinical Hospital, 550166 Sibiu, Romania
- Medical Department, Faculty of Medicine, Lucian Blaga University, 550169 Sibiu, Romania
| | - George Maniu
- Research Center in Informatics and Information Technology, Mathematics and Informatics Department, Faculty of Sciences, Lucian Blaga University, 550025 Sibiu, Romania;
| | - Bogdan Mihai Neamtu
- Research Compartment, Pediatric Clinical Hospital, 550166 Sibiu, Romania;
- Clinical Department, Faculty of Medicine, Lucian Blaga University, 550169 Sibiu, Romania
- Computer and Electrical Engineering Department, Faculty of Engineering, Lucian Blaga University, 550025 Sibiu, Romania
- Correspondence: (I.M.); (B.M.N.)
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Zhu L, Lao L, Huang Y, Lin X, Liu J. A child with Kawasaki disease successfully treated with Chinese herbal medicine: A case report with 12-month follow up. Eur J Integr Med 2019. [DOI: 10.1016/j.eujim.2019.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Reduced cerebrospinal fluid levels of interleukin-10 in children with febrile seizures. Seizure 2019; 65:94-97. [PMID: 30658331 DOI: 10.1016/j.seizure.2019.01.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 12/16/2018] [Accepted: 01/12/2019] [Indexed: 11/20/2022] Open
Abstract
PURPOSE The exact etiology of febrile seizures (FS) is still unclear. However, it is thought that cytokine network activation may have a causative role. Therefore, this study aimed to evaluate the levels of interleukin-12 (IL-12) as a proinflammatory cytokine, interleukin-10 (IL-10) as an anti-inflammatory cytokine, and interferon-β (IFN-β), a marker of toll-like receptor-3 activation as a host response to viruses. These cytokine levels were analyzed in the cerebrospinal fluid (CSF) of children after a FS. METHODS With the approval of the Human Research Ethics Committee, 76 patients with FS, who underwent lumbar puncture (LP) for the exclusion of central nervous system (CNS) infection, and who didn't have CSF pleocytosis, were included in the study. The control group consisted of 10 patients with similar ages, with an acute febrile illness and who required LP to exclude CNS infection. The analyses were made by the enzyme-linked immunoassay method. RESULTS Age, gender distribution and CSF IL-12 and IFN- β levels did not differ, but CSF IL-10 levels were significantly lower in the FS group as compared to the control group (0.78 ± 4.5 pg/ml, versus 27 ± 29 pg/ml, p < 0.0001). CONCLUSION The low-level of CSF IL-10, considering its anti-inflammatory properties, may play a role in the etiopathogenesis of FS.
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Choi J, Choi SA, Kim SY, Kim H, Lim BC, Hwang H, Chae JH, Kim KJ, Oh S, Kim EY, Shin JS. Association Analysis of Interleukin-1β, Interleukin-6, and HMGB1 Variants with Postictal Serum Cytokine Levels in Children with Febrile Seizure and Generalized Epilepsy with Febrile Seizure Plus. J Clin Neurol 2019; 15:555-563. [PMID: 31591845 PMCID: PMC6785474 DOI: 10.3988/jcn.2019.15.4.555] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 08/21/2019] [Accepted: 08/22/2019] [Indexed: 12/12/2022] Open
Abstract
Background and Purpose Febrile seizure (FS) is a unique type of seizure that only occurs during childhood. Genelized epilepsy with febrile seizure plus (GEFS+) is a familial epilepsy syndrome associated with FS and afebrile seizure (AFS). Both seizure types are related to fever, but whether genetic susceptibility to inflammation is implicated in them is still unclear. To analyze the associations between postictal serum cytokine levels and genetic variants in the cytokine genes interleukin (IL)-1β, IL-6, and high mobility group box-1 (HMGB1) in FS and GEFS+. Methods Genotyping was performed in 208 subjects (57 patients with FS, 43 patients with GEFS+, and 108 controls) with the SNaPshot assay for IL-1β-31 (rs1143627), IL-1β-511 (rs16944), IL-6-572 (rs1800796), and HMGB1 3814 (rs2249825). Serum IL-1β, IL-6, and HMGB1 levels were analyzed within 2 hours after seizure attacks using the ELISA in only 68 patients (38 FS, 10 GEFS+, and 20 controls). The allele distribution, genotype distribution, and correlations with serum cytokine levels were analyzed. Results Near-complete linkage disequilibrium exists between IL-1β-31 and IL-1β-511 variants. CT genotypes of these variants were associated with significantly higher postictal serum IL-1β levels than were CC+TT genotypes in FS (both p<0.05). CT genotypes of IL-1β-31 and IL-1β-511 variants were more strongly associated with FS than were CC+TT genotypes (odds ratio=1.691 and 1.731, respectively). For GEFS+, serum IL-1β levels after AFS for CT genotypes of IL-1β-31 and IL-1β-511 were also higher than for CC+TT genotypes. No significant associations were found for IL-6 and HMGB1. Conclusions Genetic variants located in IL-1β-31 and IL-1β-511 promotor regions are correlated with higher postictal IL-1β levels in FS. These results suggest that IL-1 gene cluster variants in IL-1β-31 and IL-1β-511 are a host genetic factor for provoking FS in Korean children.
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Affiliation(s)
- Jieun Choi
- Department of Pediatrics, SMG-SNU Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea.
| | - Sun Ah Choi
- Department of Pediatrics, Dankook University Hospital, Cheonan, Korea
| | - Soo Yeon Kim
- Department of Pediatrics, Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Hunmin Kim
- Department of Pediatrics, Seoul National University Bundang Hospital, Seoul, Korea
| | - Byung Chan Lim
- Department of Pediatrics, Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Hee Hwang
- Department of Pediatrics, Seoul National University Bundang Hospital, Seoul, Korea
| | - Jong Hee Chae
- Department of Pediatrics, Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Ki Joong Kim
- Department of Pediatrics, Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Sohee Oh
- Department of Biostatistics, SMG-SNU Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - Eun Young Kim
- Department of Pediatrics, SMG-SNU Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - Jeon Soo Shin
- Department of Microbiology, Brain Korea 21 Plus Project for Medical Science, Severance Biomedical Science Institute and Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, Korea.
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Polymorphisms in the interleukin-1β (IL-1B) and interleukin-1α (IL-1A) genes on risk of febrile seizures: a meta-analysis. Neurol Sci 2018; 39:1529-1536. [PMID: 29808330 DOI: 10.1007/s10072-018-3449-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Accepted: 05/11/2018] [Indexed: 10/14/2022]
Abstract
The aim of the current study was to clarify the role of four common genetic polymorphisms in the interleukin-1β (IL-1B) and interleukin-1α (IL-1A) genes on risk of febrile seizures (FS) by means of meta-analyses. We searched for studies published until February 2018 using ISI Web of Science, Pubmed, Wanfang, and Chinese National Knowledge Infrastructure databases. The pooled odds ratios (ORs) and 95% confidence intervals (CIs) were calculated using MetaAnalyst version Beta 3.13. Seventeen case-control studies were included for meta-analysis. For the IL-1B rs16944 polymorphism, the summary analysis of studies conducted among Caucasian populations showed a significant association in the CT+TT versus CC contrast (OR 1.434, 95% CI 1.153-1.785), while the pooled analysis for Asian populations yielded a significant estimate in the TT versus CC+CT comparison (OR 1.393, 95% CI 1.051-1.846). No association was observed between the IL-1B rs1143627, IL-1B rs1143634, and IL-1A rs1800587 polymorphisms and FS risk. Sensitivity analyses excluding studies showing deviation from Hardy-Weinberg equilibrium did not alter conclusions. The findings of our meta-analysis suggest that the IL-1B rs16944 polymorphism may be an important genetic determinant for FS in Caucasian and Asian populations.
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de Vries EE, van den Munckhof B, Braun KPJ, van Royen-Kerkhof A, de Jager W, Jansen FE. Inflammatory mediators in human epilepsy: A systematic review and meta-analysis. Neurosci Biobehav Rev 2016; 63:177-90. [PMID: 26877106 DOI: 10.1016/j.neubiorev.2016.02.007] [Citation(s) in RCA: 169] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Revised: 01/07/2016] [Accepted: 02/08/2016] [Indexed: 12/13/2022]
Abstract
BACKGROUND Accumulating evidence suggests a role for inflammation in the pathophysiology of epilepsy. METHODS We performed a systematic review and meta-analysis of studies that investigated inflammatory mediators in human epilepsy. Studies reporting on inflammatory mediators in serum, cerebrospinal fluid or brain tissue of epilepsy patients were included. Studies comparing patients to controls were included in a meta-analysis. RESULTS 66 articles reporting on 1934 patients were included. IL-1ra, IL-1β, IL-6, IL-10, IFN-γ and TNF-α were the most extensively investigated proteins. Elevated levels for IL-1ra, IL-1β, IL-6 and CXCL8/IL-8 were reported in several different epilepsy etiologies and media, while other proteins were specifically increased for one etiology. IL-1α, IL-7 and IL-13, as well as the chemokines CCL2-5, -19 and -22, were increased exclusively in brain tissue. In an aggregate meta-analysis, we found significantly different protein levels for serum IL-6, IL-17 and CSF IL-1β and IL-10. CONCLUSION Inflammatory pathways are involved in epilepsy. Future studies may further clarify their role, and prove potential of targeted anti-inflammatory treatment.
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Affiliation(s)
- Evelien E de Vries
- Brain Center Rudolf Magnus, Department of Pediatric Neurology, University Medical Center Utrecht, Utrecht, The Netherlands.
| | - Bart van den Munckhof
- Brain Center Rudolf Magnus, Department of Pediatric Neurology, University Medical Center Utrecht, Utrecht, The Netherlands.
| | - Kees P J Braun
- Brain Center Rudolf Magnus, Department of Pediatric Neurology, University Medical Center Utrecht, Utrecht, The Netherlands.
| | - Annet van Royen-Kerkhof
- Department of Pediatric Immunology, Laboratory of Translational Immunology, University Medical Centre Utrecht, Utrecht, The Netherlands.
| | - Wilco de Jager
- Department of Pediatric Immunology, Laboratory of Translational Immunology, University Medical Centre Utrecht, Utrecht, The Netherlands.
| | - Floor E Jansen
- Brain Center Rudolf Magnus, Department of Pediatric Neurology, University Medical Center Utrecht, Utrecht, The Netherlands.
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Rockman S, Dyson A, Koernig S, Becher D, Ng M, Morelli AB, Barnden M, Tang MLK, Pearse M, Maraskovsky E. Evaluation of the bioactivity of influenza vaccine strains in vitro suggests that the introduction of new strains in the 2010 Southern Hemisphere trivalent influenza vaccine is associated with adverse events. Vaccine 2014; 32:3861-8. [PMID: 24928062 DOI: 10.1016/j.vaccine.2014.03.032] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2013] [Revised: 02/28/2014] [Accepted: 03/07/2014] [Indexed: 10/25/2022]
Abstract
In Australia, during the 2010 Southern Hemisphere (SH) influenza season, there was an unexpected increase in post-marketing adverse event reports of febrile seizures (FS) in children under 5 years of age shortly after vaccination with the CSL trivalent influenza vaccine (CSL 2010 SH TIV) compared to previous CSL TIVs and other licensed 2010 SH TIVs. The present study describes the outcomes of a series of in vitro experiments directed at elucidating the root cause. The scientific investigations found that a subset of paediatric donors displayed elevated cytokine/chemokine responses to the CSL 2010 SH TIV but not to previous CSL TIVs nor other 2010 SH TIVs. The induction of elevated cytokines/chemokines in paediatric whole blood correlated with elevated NF-κB activation in a HEK293 cell reporter assay. The data indicate that the introduction of the B/Brisbane/60/2008 strain within the CSL manufacturing process (such as occurred in the preceding 2009/10 NH season) appears to have raised the pyrogenic potential of the CSL 2009/10 NH TIV but that this was insufficient to elicit FS in children <5 years. The 2010 SH season coincided with the first introduction of the H1N1 A/California/07/2009 in combination with the B/Brisbane/60/2008 strain. Our data demonstrates that the introduction of the H1N1 A/California/07/2009 (and to a much lesser degree, H3N2 A/Wisconsin/15/2009) in combination with B/Brisbane/60/2008 (as expressed through the CSL method of manufacture) combined and likely compounded the bioactivity of the CSL 2010 SH TIV. This was associated with stronger immune responses, which in a proportion of children <5 years were associated with FS. The assays and systems developed during these investigations should greatly assist in determining the bioactivity of new influenza strains, and thus aid with the manufacture of CSL TIVs indicated for use in the paediatric population.
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Affiliation(s)
| | | | | | - Dorit Becher
- CSL Limited, Parkville 3052, Victoria, Australia
| | - Milica Ng
- CSL Limited, Parkville 3052, Victoria, Australia
| | | | | | - Mimi L K Tang
- Royal Children's Hospital, Parkville 3052, Australia; Murdoch Children's Research Institute, Melbourne, Australia; University of Melbourne, Australia
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Tang L, Lu X, Tao Y, Zheng J, Zhao P, Li K, Li L. SCN1A rs3812718 polymorphism and susceptibility to epilepsy with febrile seizures: A meta-analysis. Gene 2014; 533:26-31. [DOI: 10.1016/j.gene.2013.09.071] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Revised: 09/18/2013] [Accepted: 09/19/2013] [Indexed: 01/01/2023]
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