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Makvandi M, Teimoori A, Pirmoradi R, Karami C, Shamsizadeh A, Shabani A, Angali KA. Parechovirus and enteroviruses among young infants with sepsis in Iran. IRANIAN JOURNAL OF MICROBIOLOGY 2021; 13:312-318. [PMID: 34540169 PMCID: PMC8416594 DOI: 10.18502/ijm.v13i3.6393] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Background and Objectives Human parechoviruses (HPeV) and Human enteroviruses (EV) frequently cause a sepsis-like illness in young infants (younger than three months). Therefore, this study was conducted to determine the frequency of HPeV and EV among the young infants with clinical signs and symptoms of sepsis in Ahvaz city, Iran. Materials and Methods The blood specimens were collected from 100 (younger than 90 days hospitalized infants) including 54 (56.25%) males and 46 (43.75%) females with clinical signs and symptoms of sepsis-like disease. The RNA was extracted and tested for detection of VP1 region of HPeV and 5 UTR (Untranslated Region) of EV by RT-PCR. The sequences of positive of HPeV were further analyzed to determine HPeV genotyping. Results 5/100 (5%) of patients including 2/46 (2%) females and 3/54 (3%) males tested positive for HPeV (P=0.85). The analysis of 5 positive VP1 region of HPeV revealed the genotype 1. The analysis of sequencing and phylogenetic tree revealed that the isolated HPeVs were genotype 1. While 38/100 (38%) specimens including 16 (16%) females and 22 (22%) males were tested positive for EV (P=0.68). Conclusion The frequency of HPeV genotype 1 was 5% among the young infants with sepsis. While frequency of EV was 38% among the young infants with sepsis. This study showed HPeV genotype 1 and EV are dominant in this region.
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Affiliation(s)
- Manoochehr Makvandi
- Infectious and Tropical Diseases Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Ali Teimoori
- Infectious and Tropical Diseases Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Roya Pirmoradi
- Infectious and Tropical Diseases Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Chiman Karami
- Infectious and Tropical Diseases Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Ahmad Shamsizadeh
- Division of Pediatric Infectious Diseases, Aboozar Children's Medical Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Abdolnabi Shabani
- Infectious and Tropical Diseases Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Kambiz Ahmadi Angali
- Department of Biostatistic, School of Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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Alhazmi A, Sane F, Lazrek M, Nekoua MP, Badia-Boungou F, Engelmann I, Alidjinou EK, Hober D. Enteroviruses and Type 1 Diabetes Mellitus: An Overlooked Relationship in Some Regions. Microorganisms 2020; 8:microorganisms8101458. [PMID: 32977495 PMCID: PMC7598226 DOI: 10.3390/microorganisms8101458] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 09/15/2020] [Accepted: 09/16/2020] [Indexed: 02/07/2023] Open
Abstract
Enteroviruses (EVs) infect millions of people annually. EV infections can be asymptomatic or symptomatic with conditions ranging from mild illnesses to serious diseases such as dilated cardiomyopathy. A causal relationship between EV infections and type 1 diabetes mellitus (T1DM) has been heavily debated, with some studies suggesting that this relationship is not yet conclusive and requires additional evidence, whereas others strongly argue for this correlation. While this relationship is well investigated in some developed countries like the USA and Finland, it is understudied or neglected in other countries like Russia for many reasons such as the low incidence of T1DM. Although the Middle East and North Africa (MENA) are highly affected by T1DM, the role of EVs in the disease in MENA has not been investigated extensively. Therefore, we aimed to address the relationship between T1DM and EVs in MENA and other regions globally.
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Affiliation(s)
- Abdulaziz Alhazmi
- Laboratoire de Virologie ULR3610, Univ Lille, CHU Lille, F-59000 Lille, France; (A.A.); (F.S.); (M.L.); (M.P.N.); (F.B.-B.); (I.E.); (E.K.A.)
- Microbiology and Parasitology Department, College of Medicine, Jazan University, Jazan 45142, Saudi Arabia
| | - Famara Sane
- Laboratoire de Virologie ULR3610, Univ Lille, CHU Lille, F-59000 Lille, France; (A.A.); (F.S.); (M.L.); (M.P.N.); (F.B.-B.); (I.E.); (E.K.A.)
| | - Mouna Lazrek
- Laboratoire de Virologie ULR3610, Univ Lille, CHU Lille, F-59000 Lille, France; (A.A.); (F.S.); (M.L.); (M.P.N.); (F.B.-B.); (I.E.); (E.K.A.)
| | - Magloire Pandoua Nekoua
- Laboratoire de Virologie ULR3610, Univ Lille, CHU Lille, F-59000 Lille, France; (A.A.); (F.S.); (M.L.); (M.P.N.); (F.B.-B.); (I.E.); (E.K.A.)
- Laboratoire de Biologie et Physiologie Cellulaires, Institut des Sciences Biomédicales Appliquées (ISBA), Faculté des Sciences et Techniques (FAST), Université d’Abomey-Calavi, 01 BP 526 Cotonou, Benin
| | - Francis Badia-Boungou
- Laboratoire de Virologie ULR3610, Univ Lille, CHU Lille, F-59000 Lille, France; (A.A.); (F.S.); (M.L.); (M.P.N.); (F.B.-B.); (I.E.); (E.K.A.)
| | - Ilka Engelmann
- Laboratoire de Virologie ULR3610, Univ Lille, CHU Lille, F-59000 Lille, France; (A.A.); (F.S.); (M.L.); (M.P.N.); (F.B.-B.); (I.E.); (E.K.A.)
| | - Enagnon Kazali Alidjinou
- Laboratoire de Virologie ULR3610, Univ Lille, CHU Lille, F-59000 Lille, France; (A.A.); (F.S.); (M.L.); (M.P.N.); (F.B.-B.); (I.E.); (E.K.A.)
| | - Didier Hober
- Laboratoire de Virologie ULR3610, Univ Lille, CHU Lille, F-59000 Lille, France; (A.A.); (F.S.); (M.L.); (M.P.N.); (F.B.-B.); (I.E.); (E.K.A.)
- Correspondence: ; Tel.: +33-3-20-44-66-88
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L'Huillier AG, Mardegan C, Cordey S, Luterbacher F, Papis S, Hugon F, Kaiser L, Gervaix A, Posfay-Barbe K, Galetto-Lacour A. Enterovirus, parechovirus, adenovirus and herpes virus type 6 viraemia in fever without source. Arch Dis Child 2020; 105:180-186. [PMID: 31462437 DOI: 10.1136/archdischild-2019-317382] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 07/29/2019] [Accepted: 08/07/2019] [Indexed: 11/04/2022]
Abstract
OBJECTIVES To evaluate the potential associations between fever without a source (FWS) in children and detection of human enterovirus (HEV), human parechovirus (HPeV), adenovirus (AdV) and human herpesvirus type 6 (HHV-6) in the plasma; and to assess whether the detection of viruses in the plasma is associated with a reduced risk of serious bacterial infection (SBI) and antibiotic use. DESIGN AND SETTING Between November 2015 and December 2017, this prospective, single-centre, diagnostic study tested the plasma of children <3 years old with FWS. Real-time (reverse-transcription) PCR for HEV, HPeV, AdV and HHV-6 was used in addition to the standardised institutional work-up. A control cohort was also tested for the presence of viruses in their blood. RESULTS HEV, HPeV, AdV and HHV-6 were tested for in the plasma of 135 patients of median age 2.4 months old. At least one virus was detected in 47 of 135 (34.8%): HEV in 14.1%, HHV-6 in 11.1%, HPeV in 5.9% and AdV in 5.2%. There was no difference in antibiotic use between patients with or without virus detected, despite a relative risk of 0.2 for an SBI among patients with viraemia. Controls were less frequently viraemic than children with FWS (6.0% vs 34.8%; p<0.001). CONCLUSIONS HEV, HPeV, AdV and HHV-6 are frequently detected in the plasma of children with FWS. Antibiotic use was similar between viraemic and non-viraemic patients despite a lower risk of SBI among patients with viraemia. Point-of-care viral PCR testing of plasma might reduce antibiotic use and possibly investigations and admission rates in patients with FWS. TRIAL REGISTRATION NUMBER NCT03224026.
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Affiliation(s)
- Arnaud Gregoire L'Huillier
- Pediatric Infectious Diseases Unit, Department of Child and Adolescent Medicine, Geneva University Hospitals and Medical School, Geneva, Switzerland .,Division of Infectious Diseases and Laboratory of Virology, Division of Laboratory Medicine, Geneva University Hospitals and Medical School, Geneva, Switzerland
| | - Chiara Mardegan
- Division of General Pediatrics, Department of Child and Adolescent Medicine, Geneva University Hospitals and Medical School, Geneva, Switzerland
| | - Samuel Cordey
- Division of Infectious Diseases and Laboratory of Virology, Division of Laboratory Medicine, Geneva University Hospitals and Medical School, Geneva, Switzerland
| | - Fanny Luterbacher
- Division of Pediatric Emergencies, Department of Child and Adolescent Medicine, Geneva University Hospitals and Medical School, Geneva, Switzerland
| | - Sebastien Papis
- Division of General Pediatrics, Department of Child and Adolescent Medicine, Geneva University Hospitals and Medical School, Geneva, Switzerland
| | - Florence Hugon
- Division of Pediatric Emergencies, Department of Child and Adolescent Medicine, Geneva University Hospitals and Medical School, Geneva, Switzerland
| | - Laurent Kaiser
- Division of Infectious Diseases and Laboratory of Virology, Division of Laboratory Medicine, Geneva University Hospitals and Medical School, Geneva, Switzerland
| | - Alain Gervaix
- Division of Pediatric Emergencies, Department of Child and Adolescent Medicine, Geneva University Hospitals and Medical School, Geneva, Switzerland
| | - Klara Posfay-Barbe
- Pediatric Infectious Diseases Unit, Department of Child and Adolescent Medicine, Geneva University Hospitals and Medical School, Geneva, Switzerland.,Division of Infectious Diseases and Laboratory of Virology, Division of Laboratory Medicine, Geneva University Hospitals and Medical School, Geneva, Switzerland
| | - Annick Galetto-Lacour
- Division of Pediatric Emergencies, Department of Child and Adolescent Medicine, Geneva University Hospitals and Medical School, Geneva, Switzerland
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Enteroviral infection in neonates. JOURNAL OF MICROBIOLOGY, IMMUNOLOGY, AND INFECTION = WEI MIAN YU GAN RAN ZA ZHI 2019; 52:851-857. [PMID: 31607572 DOI: 10.1016/j.jmii.2019.08.018] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 08/14/2019] [Accepted: 08/20/2019] [Indexed: 01/26/2023]
Abstract
Enteroviruses generally cause mild and self-limited diseases, but they have been found to affect neonates much differently, and often more severely than older children. Clinical manifestations are difficult to differentiate from those of bacterial sepsis, such as fever, poor feeding, lethargy, respiratory distress and cardiovascular collapse. Severe life threatening complications, including hepatic necrosis with coagulopathy, meningoencephalitis and myocarditis, usually present during the first week of life. Factors affecting severity and outcome include virus serotype, mode of transmission, and presence or absence of passively acquired, serotype-specific maternal antibodies. Echoviruses and coxsackievirus B viruses are most common serotypes associated with the neonatal sepsis. An awareness of the clinical syndromes, recognition of the risk factors and monitoring parameters associated with severe cases and use of rapid reverse-transcriptase polymerase chain reaction test for viral load may help physicians in diagnosing severe cases in a timely manner. Prompt aggressive treatment including early intravenous immunoglobulin treatment may help in reducing morbidity and mortality. Enterovirus infections in neonates are common and should be routinely considered in the differential diagnosis of febrile neonates, particularly during enterovirus season. This article provides an overview of what is known about non-polio enteroviruses in neonates including epidemiology, transmission, clinical presentation, diagnosis, and treatment.
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Lafolie J, Labbé A, L'Honneur AS, Madhi F, Pereira B, Decobert M, Adam MN, Gouraud F, Faibis F, Arditty F, Marque-Juillet S, Guitteny MA, Lagathu G, Verdan M, Rozenberg F, Mirand A, Peigue-Lafeuille H, Henquell C, Bailly JL, Archimbaud C. Assessment of blood enterovirus PCR testing in paediatric populations with fever without source, sepsis-like disease, or suspected meningitis: a prospective, multicentre, observational cohort study. THE LANCET. INFECTIOUS DISEASES 2018; 18:1385-1396. [PMID: 30389482 PMCID: PMC7164799 DOI: 10.1016/s1473-3099(18)30479-1] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 07/04/2018] [Accepted: 07/17/2018] [Indexed: 01/24/2023]
Abstract
Background Enteroviruses are the most frequent cause of acute meningitis and are seen increasingly in sepsis-like disease and fever without source in the paediatric population. Detection of enterovirus in cerebrospinal fluid (CSF) specimens by PCR is the gold standard diagnostic test. Our aim was to assess a method of detecting enterovirus in blood specimens by PCR. Methods We did a prospective, multicentre, observational study at 35 French paediatric and emergency departments in 16 hospitals. We recruited newborn babies (aged ≤28 days) and infants (aged >28 days to ≤2 years) with fever without source, sepsis-like disease, or suspected meningitis, and children (aged >2 years to ≤16 years) with suspected meningitis, who were admitted to a participating hospital. We used a standardised form to obtain demographic, clinical, and laboratory data, which were anonymised. Enterovirus PCR testing was done in blood and CSF specimens. Findings Between June 1, 2015, and Oct 31, 2015, and between June 1, 2016, and Oct 31, 2016, we enrolled 822 patients, of whom 672 had enterovirus PCR testing done in blood and CSF specimens. Enterovirus was detected in 317 (47%) patients in either blood or CSF, or both (71 newborn babies, 83 infants, and 163 children). Detection of enterovirus was more frequent in blood samples than in CSF specimens of newborn babies (70 [99%] of 71 vs 62 [87%] of 71; p=0·011) and infants (76 [92%] of 83 vs 62 [75%] of 83; p=0·008), and was less frequent in blood samples than in CSF specimens of children (90 [55%] of 163 vs 148 [91%] of 163; p<0·0001). Detection of enterovirus was more frequent in blood samples than in CSF specimens of infants aged 2 years or younger with fever without source (55 [100%] of 55 vs 41 [75%] of 55; p=0·0002) or with sepsis-like disease (16 [100%] of 16 vs nine [56%] of 16; p=0·008). Detection of enterovirus was less frequent in blood than in CSF of patients with suspected meningitis (165 [67%] of 246 vs 222 [90%] of 246; p<0·0001). Interpretation Testing for enterovirus in blood by PCR should be an integral part of clinical practice guidelines for infants aged 2 years or younger. This testing could decrease the length of hospital stay and reduce exposure to antibiotics for low-risk patients admitted to the emergency department with febrile illness. Funding University Hospital Clermont-Ferrand.
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Affiliation(s)
- Jérémy Lafolie
- Université Clermont Auvergne, Centre National de la Recherche Scientifique (CNRS), Laboratory Microorganisms: Genome and Environment (LMGE), Clermont-Ferrand, France; Centre Hospitalier Universitaire (CHU) Clermont-Ferrand, Laboratoire de Virologie, Centre National de Référence Entérovirus Parechovirus, Clermont-Ferrand, France
| | - André Labbé
- Service de Pédiatrie, Clermont-Ferrand, France
| | - Anne Sophie L'Honneur
- Hôpital Cochin, Assistance Publique-Hôpitaux de Paris (AP-HP), Service de Virologie, Paris, France
| | - Fouad Madhi
- Centre Hospitalier Intercommunal Créteil, Service de Pédiatrie Générale, Créteil, France
| | - Bruno Pereira
- Délégation Recherche Clinique and Innovation, Méthodologie, Biostatistique, Data-management, Clermont-Ferrand, France
| | - Marion Decobert
- Groupe Hospitalier Nord Essonne, Service de Pédiatrie et Néonatologie, Orsay, France
| | - Marie Noelle Adam
- Centre Hospitalier Sud Francilien, Laboratoire de Microbiologie, Corbeil Essonnes, France
| | - François Gouraud
- Grand Hôpital de l'Est Francilien, Service de Pédiatrie, Meaux, France
| | | | - Francois Arditty
- Centre Hospitalier de Versailles André Mignot, Service de Pédiatrie, Le Chesnay, France
| | | | | | | | | | - Flore Rozenberg
- Hôpital Cochin, Assistance Publique-Hôpitaux de Paris (AP-HP), Service de Virologie, Paris, France
| | - Audrey Mirand
- Université Clermont Auvergne, Centre National de la Recherche Scientifique (CNRS), Laboratory Microorganisms: Genome and Environment (LMGE), Clermont-Ferrand, France; Centre Hospitalier Universitaire (CHU) Clermont-Ferrand, Laboratoire de Virologie, Centre National de Référence Entérovirus Parechovirus, Clermont-Ferrand, France
| | - Hélène Peigue-Lafeuille
- Université Clermont Auvergne, Centre National de la Recherche Scientifique (CNRS), Laboratory Microorganisms: Genome and Environment (LMGE), Clermont-Ferrand, France; Centre Hospitalier Universitaire (CHU) Clermont-Ferrand, Laboratoire de Virologie, Centre National de Référence Entérovirus Parechovirus, Clermont-Ferrand, France
| | - Cécile Henquell
- Université Clermont Auvergne, Centre National de la Recherche Scientifique (CNRS), Laboratory Microorganisms: Genome and Environment (LMGE), Clermont-Ferrand, France; Centre Hospitalier Universitaire (CHU) Clermont-Ferrand, Laboratoire de Virologie, Centre National de Référence Entérovirus Parechovirus, Clermont-Ferrand, France
| | - Jean-Luc Bailly
- Université Clermont Auvergne, Centre National de la Recherche Scientifique (CNRS), Laboratory Microorganisms: Genome and Environment (LMGE), Clermont-Ferrand, France
| | - Christine Archimbaud
- Université Clermont Auvergne, Centre National de la Recherche Scientifique (CNRS), Laboratory Microorganisms: Genome and Environment (LMGE), Clermont-Ferrand, France; Centre Hospitalier Universitaire (CHU) Clermont-Ferrand, Laboratoire de Virologie, Centre National de Référence Entérovirus Parechovirus, Clermont-Ferrand, France.
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Sano K, Hamada H, Hirose S, Sugiura K, Harada S, Koizumi M, Hara M, Nishijima H, Taira M, Ogura A, Ogawa T, Takanashi JI. Prevalence and characteristics of human parechovirus and enterovirus infection in febrile infants. Pediatr Int 2018; 60:142-147. [PMID: 29205679 DOI: 10.1111/ped.13467] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 10/12/2017] [Accepted: 11/30/2017] [Indexed: 11/27/2022]
Abstract
BACKGROUND Human parechovirus (HPeV) and human non-polio enterovirus (EV) are important causes of fever without source (FWS) in young infants. Their prevalence and clinical characteristics are largely unknown in Asian countries. This study was conducted to elucidate the epidemiology and clinical characteristics of HPeV and EV infection in febrile young infants in Japan. METHODS During February 2010-August 2015, we obtained 53 stool, 44 throat swab, and 20 cerebrospinal fluid samples from 56 infants (<3 months) with FWS at a single hospital. To each sample, we applied reverse transcription-polymerase chain reaction for HPeV and EV. We compared the clinical characteristics of HPeV and EV patients. RESULTS HPeV was detected in 11 and EV in 17 patients. HPeV was detected during July-September. HPeV patients, compared with EV patients, had lower age (32 vs 47 days; P = n.s.), higher prevalence of exclusive breast-feeding (81.8 vs 29.4%; P = 0.024), and lower prevalence of sick contacts (36.4 vs 88.2%; P = 0.010). More HPeV than EV patients met the systemic inflammatory response syndrome criteria (90.9 vs 52.9%; P = 0.049). In the HPeV group, leukopenia, thrombopenia, and elevated deviation enzyme were observed, although the prevalence of abnormal cerebrospinal fluid was significantly lower than in the EV group. HPeV patients had longer hospital stay (7 vs 5 days; P = 0.025). CONCLUSION HPeV and EV are important causal viruses of FWS. Characteristic clinical pictures exist in these virus infections, but further research is needed to accumulate more cases to produce a comprehensive picture of these virus infections.
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Affiliation(s)
- Kentaro Sano
- Department of Pediatrics, Tokyo Women's Medical University Yachiyo Medical Center, Yachiyo, Chiba, Japan
| | - Hiromichi Hamada
- Department of Pediatrics, Tokyo Women's Medical University Yachiyo Medical Center, Yachiyo, Chiba, Japan
| | - Shoko Hirose
- Department of Pediatrics, Tokyo Women's Medical University Yachiyo Medical Center, Yachiyo, Chiba, Japan
| | - Kenta Sugiura
- Department of Pediatrics, Tokyo Women's Medical University Yachiyo Medical Center, Yachiyo, Chiba, Japan
| | - Satoko Harada
- Department of Pediatrics, Tokyo Women's Medical University Yachiyo Medical Center, Yachiyo, Chiba, Japan
| | - Mai Koizumi
- Department of Pediatrics, Tokyo Women's Medical University Yachiyo Medical Center, Yachiyo, Chiba, Japan
| | - Mayumi Hara
- Department of Pediatrics, Tokyo Women's Medical University Yachiyo Medical Center, Yachiyo, Chiba, Japan
| | - Haruna Nishijima
- Division of Virology, Chiba Prefectural Institute of Public Health, Chuou, Chiba, Japan
| | - Masakatsu Taira
- Division of Virology, Chiba Prefectural Institute of Public Health, Chuou, Chiba, Japan
| | - Atsushi Ogura
- Division of Virology, Chiba Prefectural Institute of Public Health, Chuou, Chiba, Japan
| | - Tomoko Ogawa
- Division of Virology, Chiba Prefectural Institute of Public Health, Chuou, Chiba, Japan
| | - Jun-Ichi Takanashi
- Department of Pediatrics, Tokyo Women's Medical University Yachiyo Medical Center, Yachiyo, Chiba, Japan.,Department of Neurology and Developmental Pediatrics, Tokyo Women's Medical University Yachiyo Medical Center, Yachiyo, Chiba, Japan
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Sasan MS, Nakhaei AA, Alborzi A, Ziyaeyan M. Interference of Vaccine Derived Polio Viruses with Diagnosis of Enteroviral Diseases in Neonatal Period. J Clin Diagn Res 2017; 10:SM01-SM02. [PMID: 28050469 DOI: 10.7860/jcdr/2016/16434.8813] [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: 08/23/2015] [Accepted: 11/24/2015] [Indexed: 11/24/2022]
Abstract
INTRODUCTION Enteroviruses (EV) are a common cause of neonatal sepsis especially at the junction of summer and fall. AIM This study was planned to find the frequency of Enteroviral (EV) sepsis among neonates with clinical sepsis. MATERIALS AND METHODS This is a prospective descriptive study. Rectal and pharyngeal swab samples were taken from all neonates with clinical sepsis and a control group of neonates with simple jaundice. EV was confirmed by both cell culture and RT-PCR. Anti polio antiserum was used to differentiate Polioviruses from Non Polio EVs (NPEV). RESULTS We had 67 neonates with clinical sepsis and 31 cases of simple jaundice during 105 days. NPEVs were isolated from 2 cases (2.9%) of the sepsis arm and one neonate (3.2%) of the jaundice group. Polio virus was isolated from 16.2% and 15.3% of OPV recipients in the sepsis and jaundice group respectively. CONCLUSION Enteroviruses were not a common cause for neonatal sepsis in Nemazi hospital at the time of this study. OPV vaccinated neonates commonly pass the vaccine virus in their pharynx and stool which can be mistaken with NPEV.
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Affiliation(s)
- Mohammad Saeed Sasan
- Associate Professor, Department of Paediatrics, Mashhad University of Medical Sciences, Imam Reza Hospital , Mashhad, Iran
| | - Alireza Ataei Nakhaei
- Assistant Professor, Department of Paediatrics, Mashhad University of Medical Sciences, Imam Reza Hospital , Mashhad, Iran
| | - Abdolvahab Alborzi
- Professor, Department of Paediatrics, Shiraz University of Medical Sciences, Namazi General Hospital , Shiraz, Iran
| | - Mazyar Ziyaeyan
- Professor, Alborzi Clinical Microbiology Research Center, Shiraz University of Medical Sciences, Namazi General Hospital , Shiraz, Iran
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Catalytic Conversion of Lipophilic Substrates by Phase constrained Enzymes in the Aqueous or in the Membrane Phase. Sci Rep 2016; 6:38316. [PMID: 27917951 PMCID: PMC5137027 DOI: 10.1038/srep38316] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Accepted: 11/07/2016] [Indexed: 01/20/2023] Open
Abstract
Both soluble and membrane-bound enzymes can catalyze the conversion of lipophilic substrates. The precise substrate access path, with regard to phase, has however, until now relied on conjecture from enzyme structural data only (certainly giving credible and valuable hypotheses). Alternative methods have been missing. To obtain the first experimental evidence directly determining the access paths (of lipophilic substrates) to phase constrained enzymes we here describe the application of a BODIPY-derived substrate (PS1). Using this tool, which is not accessible to cytosolic enzymes in the presence of detergent and, by contrast, not accessible to membrane embedded enzymes in the absence of detergent, we demonstrate that cytosolic and microsomal glutathione transferases (GSTs), both catalyzing the activation of PS1, do so only within their respective phases. This approach can serve as a guideline to experimentally validate substrate access paths, a fundamental property of phase restricted enzymes. Examples of other enzyme classes with members in both phases are xenobiotic-metabolizing sulphotransferases/UDP-glucuronosyl transferases or epoxide hydrolases. Since specific GSTs have been suggested to contribute to tumor drug resistance, PS1 can also be utilized as a tool to discriminate between phase constrained members of these enzymes by analyzing samples in the absence and presence of Triton X-100.
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Lv XQ, Qian LH, Wu T, Yuan TM. Enterovirus infection in febrile neonates: A hospital-based prospective cohort study. J Paediatr Child Health 2016; 52:837-41. [PMID: 27149142 DOI: 10.1111/jpc.13193] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/28/2016] [Indexed: 11/27/2022]
Abstract
AIM This study aims to investigate clinical characteristics and microbiological results and to assess the predictors for enterovirus infection in febrile neonates. METHODS A prospective cohort study was conducted on 334 febrile patients (age: 0.33-28 days) in 2011-2012 years. Enterovirus RNA was detected by reverse transcription polymerase chain reaction on faeces or cerebrospinal fluid (CSF). Clinical characteristics were compared, and non-conditional logistic regression analysis was performed to determine independent predictors for enterovirus infection. RESULTS There were 131 episodes of neonatal enterovirus infection (39.22%). Forty-eight (36.64%) developed respiratory symptoms, 69 (52.67%) had diarrhoea, 22 (16.79%) had poor feeding and 34 (25.95%) had rash. Eighteen (13.74%) had lower platelet counts, and CSF specimens were positive for enterovirus RNA in 44.27% (58/131) whose CSF revealed a mean white blood cell counts of 100.38 ± 147.97 cells/mm(3) (range: 2-668 cells/mm(3) ). The positivity of stool 38.92% (130/334) was significantly higher than that of CSF specimens 26.24% (58/221) for enterovirus RNA (P < 0.01). By logistic regression analysis, the following independently predicted enterovirus infection: abnormal CSF test (odds ratio (OR): 12.426, 95% confidence interval (CI): 5.633-27.413), thrombocytopenia (OR: 3.647, 95% CI: 1.312-10.136), duration of fever >3.25 (d) (OR: 2.293, 95% CI: 1.279-4.113), highest temperature >38.35 (°C) (OR: 2.094, 95% CI: 1.342-4.123) and negative bacterial culture (OR: 5.073, 95% CI: 1.504-17.114). CONCLUSIONS Our data indicated that enteroviruses should be routinely considered in the differential diagnosis of febrile neonates. The factors, which may predict the risk of neonatal enterovirus infection, were abnormal CSF test, thrombocytopenia, duration of fever >3.25 (d), highest temperature >38.35 (°C) and negative bacterial culture.
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Affiliation(s)
- Xiao-Qing Lv
- Department of Neonatology, Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China.,The First People's Hospital of Yongkang, Jinhua, China
| | - Ling-He Qian
- Department of Neonatology, Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Tai Wu
- Department of Neonatology, Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Tian-Ming Yuan
- Department of Neonatology, Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China
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10
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Morriss FH, Lindower JB, Bartlett HL, Atkins DL, Kim JO, Klein JM, Ford BA. Neonatal Enterovirus Infection: Case Series of Clinical Sepsis and Positive Cerebrospinal Fluid Polymerase Chain Reaction Test with Myocarditis and Cerebral White Matter Injury Complications. AJP Rep 2016; 6:e344-e351. [PMID: 27695644 PMCID: PMC5042705 DOI: 10.1055/s-0036-1593406] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Objective We describe five neonates with enteroviral (EV) infection to demonstrate central nervous system (CNS) and cardiac complications and report successful treatment of myocarditis with immunoglobulin intravenous (IVIG) in two. Study Design Case series identified during three enteroviral seasons in one neonatal intensive care unit (NICU) by cerebral spinal fluid (CSF) reverse transcriptase polymerase chain reaction (PCR) testing for EV in neonates suspected to have sepsis, but with sterile bacterial cultures. Results Cases were identified in each of three sequential years in a NICU with 800 to 900 admissions/year. Two cases were likely acquired perinatally; all were symptomatic with lethargy and poor feeding by age 5 to 10 days. All had signs of sepsis and/or meningitis; one progressed to periventricular leukomalacia and encephalomalacia. Two recovered from myocarditis after treatment that included IVIG 3 to 5 g/kg. Conclusion Neonates who appear septic without bacterial etiology may have EV CNS infections that can be diagnosed rapidly by CSF PCR testing. Cases may be underdiagnosed in the early neonatal period if specific testing is not performed. Neonates with EV infection should be investigated for evidence of periventricular leukomalacia, screened for myocarditis, and considered for IVIG treatment.
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Affiliation(s)
- Frank H Morriss
- Stead Family Department of Pediatrics, University of Iowa Children's Hospital, Iowa City, Iowa; Departments of Pediatrics and of Pathology, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, Iowa
| | - Julie B Lindower
- Stead Family Department of Pediatrics, University of Iowa Children's Hospital, Iowa City, Iowa; Departments of Pediatrics and of Pathology, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, Iowa
| | | | - Dianne L Atkins
- Stead Family Department of Pediatrics, University of Iowa Children's Hospital, Iowa City, Iowa; Departments of Pediatrics and of Pathology, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, Iowa
| | - Jean O Kim
- Department of Pediatrics, Chicago Medical School, Rosalind Franklin University of Medicine and Science, North Chicago, Illinois
| | - Jonathan M Klein
- Stead Family Department of Pediatrics, University of Iowa Children's Hospital, Iowa City, Iowa; Departments of Pediatrics and of Pathology, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, Iowa
| | - Bradley A Ford
- Departments of Pediatrics and of Pathology, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, Iowa; Department of Pathology, University of Iowa Hospitals and Clinics, Iowa City, Iowa
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11
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Cordey S, L'Huillier AG, Turin L, Gervaix A, Posfay Barbe K, Kaiser L. Enterovirus and Parechovirus viraemia in young children presenting to the emergency room: Unrecognised and frequent. J Clin Virol 2015; 68:69-72. [PMID: 26071339 DOI: 10.1016/j.jcv.2015.05.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Revised: 03/28/2015] [Accepted: 05/08/2015] [Indexed: 10/23/2022]
Abstract
BACKGROUND Human Enterovirus (EV) and Parechovirus (HPeV) are well recognised as agents causing disease in neonates, but their importance is poorly described in the general paediatric population consulting with a suspicion of infection. OBJECTIVE We investigated the prevalence of EV- or HPeV-associated infections in children presenting to a paediatric emergency department with a suspicion of infection. STUDY DESIGN Plasma specimens collected in our paediatric emergency room for clinical reasons were screened by specific real-time RT-PCR for the presence of EV and HPeV. RESULTS Based on an analyses of 233 plasma specimens, up to 6.9% and 2.6% were positive for EV and HPeV, respectively. Amongst the population <3y.o, prevalence of EV and HPeV viraemia was 11% and 3.7%, respectively. Importantly, 56.3% of positive EV specimens were detected in infants >3 months of age. CONCLUSION The prevalence of EV and HPeV viraemia in children <3 years old is largely underestimated. Our results confirm that EV should be suspected and included in the work-up in children >3 months of age and not restricted to neonates.
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Affiliation(s)
- S Cordey
- Laboratory of Virology, Infectious Diseases Service, University Hospitals of Geneva, Geneva, Switzerland; University of Geneva Medical School, Geneva, Switzerland.
| | - A G L'Huillier
- University of Geneva Medical School, Geneva, Switzerland; Paediatric Infectious Diseases Unit, Division of General Paediatrics, Department of Paediatrics, University Hospitals of Geneva, Switzerland
| | - L Turin
- Laboratory of Virology, Infectious Diseases Service, University Hospitals of Geneva, Geneva, Switzerland; University of Geneva Medical School, Geneva, Switzerland
| | - A Gervaix
- University of Geneva Medical School, Geneva, Switzerland; Paediatric Emergency Division, University Hospitals of Geneva, Geneva, Switzerland
| | - K Posfay Barbe
- University of Geneva Medical School, Geneva, Switzerland; Paediatric Infectious Diseases Unit, Division of General Paediatrics, Department of Paediatrics, University Hospitals of Geneva, Switzerland
| | - L Kaiser
- Laboratory of Virology, Infectious Diseases Service, University Hospitals of Geneva, Geneva, Switzerland; University of Geneva Medical School, Geneva, Switzerland
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Abstract
There are currently 12 species and over 100 serotypes that have been identified in the enterovirus genus, including the coxsackieviruses, echoviruses, and polioviruses. Since their discovery 65 years ago, much has been discovered and continues to be researched regarding the pathogenicity and scope of disease of nonpolio enteroviruses. Like many infections, enteroviruses have been found to affect neonates much differently, and often more severely, than older children and adults. Neonatal infections often cause mild illnesses with nonspecific symptoms, but they may also have severe presentations involving the cardiovascular, gastrointestinal, hematologic, or central nervous systems. This article provides an overview of what is known about nonpolio enteroviruses in neonates including epidemiology, transmission, clinical presentation, diagnosis, and treatment.
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13
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Cabrerizo M, Trallero G, Pena MJ, Cilla A, Megias G, Muñoz-Almagro C, Del Amo E, Roda D, Mensalvas AI, Moreno-Docón A, García-Costa J, Rabella N, Omeñaca M, Romero MP, Sanbonmatsu-Gámez S, Pérez-Ruiz M, Santos-Muñoz MJ, Calvo C. Comparison of epidemiology and clinical characteristics of infections by human parechovirus vs. those by enterovirus during the first month of life. Eur J Pediatr 2015; 174:1511-6. [PMID: 25982340 PMCID: PMC4623089 DOI: 10.1007/s00431-015-2566-9] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2015] [Revised: 05/06/2015] [Accepted: 05/08/2015] [Indexed: 11/13/2022]
Abstract
UNLABELLED Human parechoviruses (HPeV) have been recently recognized as important viral agents in paediatric infections. The aims of this study were to investigate the HPeV infection prevalence in infants <1 month in Spain and, secondly, to analyse the clinical and epidemiological characteristics of the infected patients compared with those infected by enterovirus (EV). Infants <1 month with neurological or systemic symptoms were included in a multicentre prospective study. EV and HPeV detection by RT-PCR and genotyping were performed in cerebrospinal fluids (CSF), sera or throat swabs. Out of the total of 84 infants studied during 2013, 32 were EV positive (38 %) and 9 HPeV positive (11 %). HPeV-3 was identified in eight cases and HPeV-5 in one. Mean age of HPeV-positive patients was 18 days. Diagnoses were fever without source (FWS) (67 %), clinical sepsis (22 %) and encephalitis (11 %). Leukocytes in blood and CSF were normal. Pleocytosis (p = 0.03) and meningitis (p = 0.001) were significantly more frequent in patients with EV infections than with HPeV. CONCLUSIONS Although HPeV-3 infections were detected less frequently than EV, they still account for approximately 10 % of the cases analysed in infants younger than 1 month. HPeV-3 was mainly associated with FWS and without leukocytosis and pleocytosis in CSF. In these cases, HPeV screening is desirable to identify the aetiologic agent and prevent unnecessary treatment and prolonged hospitalization.
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Affiliation(s)
- María Cabrerizo
- Enterovirus Unit, National Centre for Microbiology, Health Institute "Carlos III", Madrid, Spain.
| | - Gloria Trallero
- Enterovirus Unit, National Centre for Microbiology, Health Institute "Carlos III", Madrid, Spain.
| | | | | | | | | | | | - Diana Roda
- Hospital San Joan de Deu, Barcelona, Spain.
| | | | | | | | | | | | | | | | | | - María José Santos-Muñoz
- Pediatrics Department, Hospital Severo Ochoa, Avda. Orellana, s.n., Leganés, 28911, Madrid, Spain.
| | - Cristina Calvo
- Pediatrics Department, Hospital Severo Ochoa, Avda. Orellana, s.n., Leganés, 28911, Madrid, Spain.
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Soudée S, Schuffenecker I, Aberchih J, Josset L, Lina B, Baud O, Biran V. Infections néonatales à entérovirus en France en 2012. Arch Pediatr 2014; 21:984-9. [DOI: 10.1016/j.arcped.2014.06.022] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Revised: 06/12/2014] [Accepted: 06/24/2014] [Indexed: 11/26/2022]
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