1
|
Nkobetchou M, Leruez-Ville M, Guilleminot T, Roux N, Petrilli G, Guimiot F, Saint-Frison MH, Deryabin I, Ville Y, Faure-Bardon V. SARS-CoV-2 infection as cause of in-utero fetal death: regional multicenter cohort study. Ultrasound Obstet Gynecol 2023; 62:867-874. [PMID: 37519281 DOI: 10.1002/uog.27439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 06/27/2023] [Accepted: 07/07/2023] [Indexed: 08/01/2023]
Abstract
OBJECTIVE Placental infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) can lead to placental insufficiency and in-utero fetal death (IUFD). The objective of this study was to confirm and quantify the extent to which fetoplacental infection with SARS-CoV-2 is a cause of fetal death. METHODS This was a multicenter retrospective cohort study of fetal deaths that underwent postmortem examination between January 2020 and January 2022 in three fetal pathology units in Paris, France. All cases of IUFD and termination of pregnancy (TOP) occurring in 31 maternity hospitals in the Paris region undergo detailed placental pathological examination in these units. Databases were searched for cases of IUFD and TOP. Cases with fetal malformation or cytogenetic abnormality were excluded to avoid bias. We included cases of IUFD with a placental or undetermined cause and cases of TOP in the context of severe intrauterine growth restriction (IUGR). Placentas were sent to a single virology unit for reverse-transcription polymerase chain reaction (RT-PCR) testing by a single laboratory technician blinded to the initial postmortem examination report. Our primary endpoint was the proportion of positive placental SARS-CoV-2 RT-PCR tests in the cohort. RESULTS Among 147 722 deliveries occurring over 2 years, 788 postmortem examinations for IUFD and TOP for severe IUGR were recorded, of which 462 (58.6%) were included. A total of 13/462 (2.8%) placentas tested positive for SARS-CoV-2 by RT-PCR. Wild-type virus and alpha and delta variants were identified. All positive cases had histological lesions consistent with placental dysfunction. There was a strong correlation between SARS-CoV-2 placentitis and the presence of chronic intervillositis and/or massive fibrin deposits in the placenta. When both lesion types were present, the specificity and negative predictive value for the diagnosis of placental SARS-CoV-2 infection were 0.99 (95% CI, 0.98-1.00) and 0.96 (95% CI, 0.94-0.98), respectively. CONCLUSIONS At the height of the SARS-CoV-2 pandemic, the cause of more than half of fetal deaths in the Paris area was determined by postmortem analysis to be of placental or undetermined origin. Of these cases, 2.8% were due to placental SARS-CoV-2 infection with a specific pattern of histological involvement. This study highlights the need for SARS-CoV-2 screening in stillbirth assessment. The impact of vaccination coverage remains to be established. © 2023 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of International Society of Ultrasound in Obstetrics and Gynecology.
Collapse
Affiliation(s)
- M Nkobetchou
- EA 73-28, Paris Cité University, Necker University Hospital, Paris, France
- Maternity Department, Necker University Hospital, Paris, France
| | - M Leruez-Ville
- EA 73-28, Paris Cité University, Necker University Hospital, Paris, France
- Virology Department, Necker University Hospital, Paris, France
| | - T Guilleminot
- EA 73-28, Paris Cité University, Necker University Hospital, Paris, France
- Virology Department, Necker University Hospital, Paris, France
| | - N Roux
- Histopathology Department, Necker University Hospital, Paris, France
| | - G Petrilli
- Histopathology Department, Necker University Hospital, Paris, France
| | - F Guimiot
- Histopathology Department, Robert Debré Hospital, Paris, France
| | | | - I Deryabin
- Histopathology Department, Trousseau Hospital, Paris, France
| | - Y Ville
- EA 73-28, Paris Cité University, Necker University Hospital, Paris, France
- Maternity Department, Necker University Hospital, Paris, France
| | - V Faure-Bardon
- EA 73-28, Paris Cité University, Necker University Hospital, Paris, France
- Maternity Department, Necker University Hospital, Paris, France
| |
Collapse
|
2
|
Fourgeaud J, Regnault B, Faury H, Da Rocha N, Jamet A, Stirnemann J, Eloit M, Perot P, Leruez-Ville M, Driessen M. Fetal Zika virus infection diagnosed by metagenomic next-generation sequencing of amniotic fluid. Ultrasound Obstet Gynecol 2023; 61:116-117. [PMID: 36102858 DOI: 10.1002/uog.26074] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 08/22/2022] [Accepted: 09/02/2022] [Indexed: 05/27/2023]
Affiliation(s)
- J Fourgeaud
- Université Paris Cité, FETUS, Paris, France
- Department of Clinical Microbiology, Necker-Enfants Malades Hospital, AP-HP, Paris, France
| | - B Regnault
- Pathogen Discovery Laboratory, Institut Pasteur, Université de Paris, Paris, France
| | - H Faury
- Department of Clinical Microbiology, Necker-Enfants Malades Hospital, AP-HP, Paris, France
| | - N Da Rocha
- Pathogen Discovery Laboratory, Institut Pasteur, Université de Paris, Paris, France
| | - A Jamet
- Université Paris Cité, FETUS, Paris, France
- Department of Clinical Microbiology, Necker-Enfants Malades Hospital, AP-HP, Paris, France
- Institut Necker-Enfants Malades, INSERM U1151, CNRS UMR, 8253, Paris, France
| | - J Stirnemann
- Université Paris Cité, FETUS, Paris, France
- Department of Obstetrics and Fetal Therapy, Necker-Enfants Malades Hospital, AP-HP, Paris, France
| | - M Eloit
- Pathogen Discovery Laboratory, Institut Pasteur, Université de Paris, Paris, France
| | - P Perot
- Pathogen Discovery Laboratory, Institut Pasteur, Université de Paris, Paris, France
| | - M Leruez-Ville
- Université Paris Cité, FETUS, Paris, France
- Department of Clinical Microbiology, Necker-Enfants Malades Hospital, AP-HP, Paris, France
| | - M Driessen
- Department of Obstetrics and Fetal Therapy, Necker-Enfants Malades Hospital, AP-HP, Paris, France
| |
Collapse
|
3
|
Seror V, Leruez-Ville M, Ӧzek A, Ville Y. Leaning towards Cytomegalovirus serological screening in pregnancy to prevent congenital infection: a cost-effectiveness perspective. BJOG 2021; 129:301-312. [PMID: 34651405 DOI: 10.1111/1471-0528.16966] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Revised: 09/24/2021] [Accepted: 10/07/2021] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To assess the cost-effectiveness of prenatal detection of congenital cytomegalovirus (cCMV) following maternal primary infection in the first trimester within standard pregnancy follow-up or involving population-based screening (serological testing at 7 and 12 weeks of gestation), with or without secondary prevention (valaciclovir) in maternal CMV primary infection. DESIGN Cost-effectiveness study from the perspective of the French national health insurance system. SETTING Cost-effectiveness based on previously published probability estimates and associated plausible ranges hypothetical population of 1,000,000 pregnant women. POPULATION Hypothetical population of 1,000,000 pregnant women. METHODS Cost-effectiveness of detecting fetal cCMV in terms of the total direct medical costs involved and associated expected outcomes. MAIN OUTCOME MEASURES Detection rates and clinical outcomes at birth. RESULTS Moving to a population-based approach for targeting fetal CMV infections would generate high monetary and organizational costs while increasing detection rates from 15% to 94%. This resource allocation would help implementing horizontal equity according to which individuals with similar medical needs should be treated equally. Secondary prevention with valaciclovir had a significant effect on maternal-fetal CMV transmission and clinical outcomes in newborns, with a 58% decrease of severely infected newborns for a 3.5% additional total costs. Accounting for women decision-making (amniocentesis uptake and termination of pregnancy in severe cases) did not impact the cost-effectiveness results. CONCLUSIONS These findings could fuel thinking on the opportunity of developing clinical guidelines to rule identification of cCMV infection and administration of in-utero treatment. These findings could fuel the development of clinical guidelines on the identification of congenital CMV infection and the administration of treatment in utero. TWEETABLE ABSTRACT CMV serological screening followed by valaciclovir prevention may prevent 58% to 71% of severe cCMV cases for 38 € per pregnancy.
Collapse
Affiliation(s)
- V Seror
- Aix Marseille Univ, IRD, AP-HM, SSA, VITROME, Marseille, France.,Institut Hospitalier Universitaire (IHU) - Méditerranée Infection, Marseille, France
| | - M Leruez-Ville
- Virology Laboratory, Hôpital Necker-Enfants Malades, AP-HP, National Reference Centre for Herpesviridae, Paris, France.,EA7328, Institut Imagine, Université de Paris, Paris, France
| | - A Ӧzek
- EA7328, Institut Imagine, Université de Paris, Paris, France.,Maternity, Hôpital Necker-Enfants Malades, AP-HP, Paris, France
| | - Y Ville
- EA7328, Institut Imagine, Université de Paris, Paris, France.,Maternity, Hôpital Necker-Enfants Malades, AP-HP, Paris, France
| |
Collapse
|
4
|
Faure-Bardon V, Fourgeaud J, Stirnemann J, Leruez-Ville M, Ville Y. Secondary prevention of congenital cytomegalovirus infection with valacyclovir following maternal primary infection in early pregnancy. Ultrasound Obstet Gynecol 2021; 58:576-581. [PMID: 33998084 DOI: 10.1002/uog.23685] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 05/05/2021] [Accepted: 05/06/2021] [Indexed: 06/12/2023]
Abstract
OBJECTIVE Cytomegalovirus (CMV) maternal primary infection (MPI) in early pregnancy is the main risk factor for congenital CMV (cCMV) infection with long-term sequelae. Our aim was to evaluate, in a single center offering CMV serology screening at 11-14 gestational weeks, secondary prevention of cCMV by administration of high-dosage maternal oral valacyclovir (VACV) in the first trimester of pregnancy. METHODS This was a case-control study in a longitudinal cohort of pregnancies with CMV-MPI diagnosed prior to 14 weeks of gestation by serology screening (immunoglobulin (Ig) M and IgG measurement and IgG avidity) between 2009 and 2020. From October 2019 onwards, all women presenting at our center with MPI before 14 weeks' gestation were offered treatment with high-dosage oral VACV (8 g/day, 4 g twice/day). We used propensity score matching to compare fetal infection rates in cases treated with maternal oral VACV (8 g/day) with those in untreated controls. Fetal infection was assessed following amniocentesis at 17-22 weeks of gestation, by polymerase chain reaction (PCR) analysis of amniotic fluid for viral DNA. RESULTS Of 310 cases of CMV-MPI identified, 269 underwent amniocentesis for PCR. Of these, 66 were offered, and 65 accepted, treatment with VACV. From the remaining untreated cases, we selected 65 controls, matched for proportion of periconceptional infections and gestational age at amniocentesis. VACV was initiated at a median gestational age of 12.71 (interquartile range (IQR), 10.00-13.86) weeks and the median duration of treatment was 35 (IQR, 26-54) days. On multivariate logistic regression, fetal infection was lower in the treated group (odds ratio, 0.318 (95% CI, 0.120-0.841); P = 0.021). One treated patient developed acute renal failure 4 weeks after initiation of VACV therapy, but this resolved within 5 days after treatment was stopped. CONCLUSION This study confirms the acceptability, tolerance and benefit of secondary prevention by VACV of cCMV infection in a clinical setting with a well-established routine maternal serum screening policy in the first trimester of pregnancy. © 2021 International Society of Ultrasound in Obstetrics and Gynecology.
Collapse
Affiliation(s)
- V Faure-Bardon
- Obstetrics and Fetal Medicine Department, Hôpital Necker-Enfants Malades, Assistance Publique Hôpitaux de Paris, Paris, France
- Université de Paris, Paris, France
- EA7328, Institut Hospitalo-Universitaire Imagine, Paris, France
| | - J Fourgeaud
- Université de Paris, Paris, France
- EA7328, Institut Hospitalo-Universitaire Imagine, Paris, France
- Virology Laboratory, Associated with the National Herpes Viridae Reference Laboratory, Hôpital Necker-Enfants Malades, Assistance Publique Hôpitaux de Paris, Paris, France
| | - J Stirnemann
- Obstetrics and Fetal Medicine Department, Hôpital Necker-Enfants Malades, Assistance Publique Hôpitaux de Paris, Paris, France
- Université de Paris, Paris, France
- EA7328, Institut Hospitalo-Universitaire Imagine, Paris, France
| | - M Leruez-Ville
- Université de Paris, Paris, France
- EA7328, Institut Hospitalo-Universitaire Imagine, Paris, France
- Virology Laboratory, Associated with the National Herpes Viridae Reference Laboratory, Hôpital Necker-Enfants Malades, Assistance Publique Hôpitaux de Paris, Paris, France
| | - Y Ville
- Obstetrics and Fetal Medicine Department, Hôpital Necker-Enfants Malades, Assistance Publique Hôpitaux de Paris, Paris, France
- Université de Paris, Paris, France
- EA7328, Institut Hospitalo-Universitaire Imagine, Paris, France
| |
Collapse
|
5
|
Ville Y, Leruez-Ville M. Renal toxicity of high-dosage valacyclovir for secondary prevention of congenital cytomegalovirus infection: a dose regimen-related issue. Ultrasound Obstet Gynecol 2021; 58:637-638. [PMID: 34468055 DOI: 10.1002/uog.24753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 08/18/2021] [Accepted: 08/19/2021] [Indexed: 06/13/2023]
Affiliation(s)
- Y Ville
- EA7328, Université de Paris & Institut IMAGINE, Paris, France
- Department of Obstetrics, Fetal Medicine and Surgery and Fetal Imaging, Hôpital Necker Enfants-Malades, Paris, France
| | - M Leruez-Ville
- EA7328, Université de Paris & Institut IMAGINE, Paris, France
- Microbiology Department, Virology Unit, National Reference Centre for Herpes Virus and Congenital CMV Infection, Paris, France
| |
Collapse
|
6
|
Fourgeaud J, Jamet A, Perot P, Regnault B, Troadec É, Chretien D, Bigot T, Eloit M, Ferroni A, Leruez-Ville M. Recherche d’agents pathogènes : une année de métagénomique clinique au laboratoire de microbiologie. Infect Dis Now 2021. [DOI: 10.1016/j.idnow.2021.06.066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
7
|
Faure-Bardon V, Fourgeaud J, Guilleminot T, Magny JF, Salomon LJ, Bernard JP, Leruez-Ville M, Ville Y. First-trimester diagnosis of congenital cytomegalovirus infection after maternal primary infection in early pregnancy: feasibility study of viral genome amplification by PCR on chorionic villi obtained by CVS. Ultrasound Obstet Gynecol 2021; 57:568-572. [PMID: 33533526 DOI: 10.1002/uog.23608] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 01/22/2021] [Accepted: 01/25/2021] [Indexed: 06/12/2023]
Abstract
OBJECTIVE To evaluate the feasibility of amplification of the viral genome by polymerase chain reaction (PCR) analysis of trophoblast samples obtained by chorionic villus sampling (CVS) in cases of maternal primary infection (MPI) with cytomegalovirus (CMV) in early pregnancy. METHODS This was a prospective study carried out at the Department of Obstetrics and Fetal Medicine, Hopital Necker-E.M., between October 2019 and October 2020. Following CMV serology screening in early pregnancy, CVS was offered to women at 11-14 weeks' gestation after CMV-MPI ≤ 10 weeks. Array-comparative genomic hybridization and amplification of the viral genome by PCR were performed on the trophoblasts obtained by CVS. All cases also underwent amniocentesis from 17 weeks onwards and PCR was performed on the amniotic fluid. Secondary prevention with valacyclovir was initiated as soon as MPI was diagnosed, to decrease the risk of vertical transmission. We evaluated the diagnostic performance of CMV-PCR of trophoblast obtained by CVS, using as the reference standard PCR of amniotic fluid obtained by amniocentesis. RESULTS CVS was performed in 37 pregnancies, at a median (range) gestational age of 12.7 (11.3-14.4) weeks. CMV-PCR in chorionic villi was positive in three and negative in 34 cases. CMV-PCR following amniocentesis, performed at a median (range) gestational age of 17.6 (16.7-29.9) weeks, was positive for the three cases which were positive following CVS and, of the 34 patients with a negative finding following CVS, amniocentesis was negative in 31 and positive in three. The sensitivity of CMV-PCR analysis of trophoblast obtained by CVS for the diagnosis of CMV, using as the reference standard PCR analysis of amniotic fluid obtained by amniocentesis, was 50% (95% CI, 19-81%), specificity was 100% (95% CI, 89-100%), positive predictive value was 100% (95% CI, 44-100%) and negative predictive value was 91% (95% CI, 77-97%). CONCLUSIONS Diagnosis of placental infection following MPI in early pregnancy can be achieved by PCR amplification of the CMV genome in chorionic villi. We propose that negative CMV-PCR in the trophoblast after 12 weeks could be used to exclude CMV-related embryopathy leading to sequelae. However, this needs to be confirmed through long-term follow-up evaluation. These findings could help to establish CVS as the diagnostic test of choice following maternal serology screening in early pregnancy. © 2021 International Society of Ultrasound in Obstetrics and Gynecology.
Collapse
Affiliation(s)
- V Faure-Bardon
- EA 73-28, Université de Paris, Paris, France
- AP-HP, Department of Obstetrics and Fetal Medicine, Hopital Necker-E.M., Paris, France
| | - J Fourgeaud
- EA 73-28, Université de Paris, Paris, France
- AP-HP, Virology Laboratory, Hopital Necker-E.M., Paris, France
| | - T Guilleminot
- EA 73-28, Université de Paris, Paris, France
- AP-HP, Virology Laboratory, Hopital Necker-E.M., Paris, France
| | - J-F Magny
- EA 73-28, Université de Paris, Paris, France
- AP-HP, Neonatal Intensive Care Unit, Hopital Necker-E.M, Paris, France
| | - L J Salomon
- EA 73-28, Université de Paris, Paris, France
- AP-HP, Department of Obstetrics and Fetal Medicine, Hopital Necker-E.M., Paris, France
| | - J-P Bernard
- EA 73-28, Université de Paris, Paris, France
- AP-HP, Department of Obstetrics and Fetal Medicine, Hopital Necker-E.M., Paris, France
| | - M Leruez-Ville
- EA 73-28, Université de Paris, Paris, France
- AP-HP, Virology Laboratory, Hopital Necker-E.M., Paris, France
| | - Y Ville
- EA 73-28, Université de Paris, Paris, France
- AP-HP, Department of Obstetrics and Fetal Medicine, Hopital Necker-E.M., Paris, France
| |
Collapse
|
8
|
Faure-Bardon V, Isnard P, Roux N, Leruez-Ville M, Molina T, Bessieres B, Ville Y. Reply. Ultrasound Obstet Gynecol 2021; 57:352-353. [PMID: 33524233 DOI: 10.1002/uog.23583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Affiliation(s)
- V Faure-Bardon
- EA 73-28, Université de Paris, Paris, France
- AP-HP, Department of Obstetrics and Fetal Medicine, Hospital Necker-E.M., Paris, France
| | - P Isnard
- AP-HP, Department of Histology, Embryology and Cytogenetics, Hospital Necker-E.M, Paris, France
- Institut National de la Santé et de la Recherche Médicale (INSERM), U1151, CNRS UMR 8253, Hospital Necker-E.M., Department of Growth and Signaling, Université de Paris, Paris, France
| | - N Roux
- AP-HP, Department of Histology, Embryology and Cytogenetics, Hospital Necker-E.M, Paris, France
| | - M Leruez-Ville
- EA 73-28, Université de Paris, Paris, France
- AP-HP, Virology Laboratory, Hospital Necker-E.M, Paris, France
| | - T Molina
- AP-HP, Department of Histology, Embryology and Cytogenetics, Hospital Necker-E.M, Paris, France
| | - B Bessieres
- AP-HP, Department of Histology, Embryology and Cytogenetics, Hospital Necker-E.M, Paris, France
| | - Y Ville
- EA 73-28, Université de Paris, Paris, France
- AP-HP, Department of Obstetrics and Fetal Medicine, Hospital Necker-E.M., Paris, France
| |
Collapse
|
9
|
Leruez-Ville M, Ren S, Magny JF, Jacquemard F, Couderc S, Garcia P, Maillotte AM, Benard M, Pinquier D, Minodier P, Astruc D, Patural H, Ugolin M, Parat S, Guillois B, Garenne A, Parodi M, Bussières L, Stirnemann J, Sonigo P, Millischer AE, Ville Y. Accuracy of prenatal ultrasound screening to identify fetuses infected by cytomegalovirus which will develop severe long-term sequelae. Ultrasound Obstet Gynecol 2021; 57:97-104. [PMID: 32339337 DOI: 10.1002/uog.22056] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 04/06/2020] [Accepted: 04/12/2020] [Indexed: 06/11/2023]
Abstract
OBJECTIVES To compare the ability of detailed routine ultrasound examination, performed without knowledge of maternal serology and fetal status, with that of targeted prenatal imaging performed in prenatal diagnostic units in cases of known fetal infection to identify cytomegalovirus (CMV)-infected fetuses that will develop long-term sequelae. METHODS All prenatal imaging reports were collected for 255 children with congenital CMV in a registered cohort between 2013 and 2017 (NCT01923636). All women had undergone detailed routine fetal ultrasound examination at 20-24 and 30-34 weeks as part of routine antenatal care. All cases of known fetal CMV infection had also undergone targeted prenatal ultrasound examination. Postnatal structured follow-up for up to 48 months of age involved clinical, audiological and neurological assessment, including Brunet-Lezine scoring. Long-term sequelae (> 12 months) were considered to be mild in cases with isolated unilateral hearing loss and/or vestibular disorders, and severe in cases with bilateral hearing loss and/or neurological sequelae. All imaging reports were analyzed retrospectively with the knowledge of congenital CMV infection, searching for reference to findings that were, or could have been, related to fetal infection. Findings were analyzed in relation to whether the cases were diagnosed with CMV in utero or only postnatally. RESULTS There were 237 children with complete follow-up data (> 12 months), for a median of 24 (range, 12-48) months. Of these, 30% (71/237) were diagnosed with CMV prenatally and 70% (166/237) were diagnosed within 3 weeks after birth. 72.5% (29/40) of children with long-term sequelae, including 74% (14/19) with severe long-term sequelae, were not identified in the prenatal period. Among those diagnosed prenatally, the sensitivity of prenatal imaging for predicting long-term sequelae and severe long-term sequelae was 91% and 100%, respectively, while, in the group diagnosed only postnatally, non-specific infection-related ultrasound findings had been reported without raising suspicion in 48% of cases with long-term sequelae and 64% of those with severe long-term sequelae. CONCLUSIONS Routine detailed ultrasound examination in pregnancy is not an appropriate screening tool for congenital CMV infection that leads to long-term sequelae, in contrast with the high performance of targeted prenatal imaging in known cases of fetal infection. The non-specific nature of ultrasound features of CMV and their evolution, and a lack of awareness of caregivers about congenital CMV, are likely explanations. Awareness of the sonologist regarding congenital CMV and knowledge of the maternal serological status in the first trimester seem key to the performance of prenatal ultrasound. Copyright © 2020 ISUOG. Published by John Wiley & Sons Ltd.
Collapse
Affiliation(s)
- M Leruez-Ville
- EA 73-28, Paris Descartes University, Sorbonne Paris Cité, Paris, France
- AP-HP, Hospital Necker-E.M., Virology Laboratory, Reference Laboratory for Cytomegalovirus Infections, Paris, France
| | - S Ren
- EA 73-28, Paris Descartes University, Sorbonne Paris Cité, Paris, France
| | - J-F Magny
- EA 73-28, Paris Descartes University, Sorbonne Paris Cité, Paris, France
- AP-HP, Hospital Necker-E.M., Neonatal Intensive Care Unit, Paris, France
| | - F Jacquemard
- American Hospital of Paris, Prenatal Diagnostic Unit, Neuilly, France
| | - S Couderc
- Hospital Intercommunal Poissy-Saint Germain, Maternity, Poissy, France
| | - P Garcia
- AP-HM, Hospital La Conception, Neonatology and Intensive Care Department, Marseille, France
| | - A-M Maillotte
- CHU Nice, Hospital L'Archet, Neonatal Intensive Care Unit, Nice, France
| | - M Benard
- Toulouse University Hospital, Department of Neonatology, Toulouse, France
| | - D Pinquier
- Rouen University Hospital, Department of Neonatology, Rouen, France
| | - P Minodier
- AP-HM, Hospital Nord, Emergency Care Department, Marseille, France
| | - D Astruc
- Strasbourg University Hospital, Department of Neonatology, Strasbourg, France
| | - H Patural
- University Hospital, Neonatal Intensive Care Unit, Saint-Etienne, France
| | - M Ugolin
- CHU Rennes and CIC1414, Pediatric Department, Neonatology, Rennes, France
| | - S Parat
- AP-HP, Hospital Cochin, Maternity, Paris, France
| | - B Guillois
- CHU de Caen, Department of Neonatology, Caen, France
- Université Caen Normandie, Medical School, Caen, France
| | - A Garenne
- CHRU Brest, Neonatal and Pediatric Intensive Care Unit, Brest, France
| | - M Parodi
- AP-HP, Hospital Necker-E.M., Otology Department, Paris, France
| | - L Bussières
- EA 73-28, Paris Descartes University, Sorbonne Paris Cité, Paris, France
- AP-HP, Hospital Necker-E.M., Clinical Research Unit, Paris, France
| | - J Stirnemann
- EA 73-28, Paris Descartes University, Sorbonne Paris Cité, Paris, France
- AP-HP, Hospital Necker-E.M., Maternity, Paris, France
| | - P Sonigo
- AP-HP, Hospital Necker-E.M., Radiology Department, Paris, France
| | - A E Millischer
- AP-HP, Hospital Necker-E.M., Radiology Department, Paris, France
| | - Y Ville
- EA 73-28, Paris Descartes University, Sorbonne Paris Cité, Paris, France
- AP-HP, Hospital Necker-E.M., Maternity, Paris, France
| |
Collapse
|
10
|
Contejean A, Leporrier J, Canouï E, Alby-Laurent F, Lafont E, Frange P, Leruez-Ville M, Rozenberg F, Lortholary O, Kernéis S. Évolution épidémique et déterminants de l’infection par le SARS-CoV-2 chez le personnel hospitalier : comparaison d’un centre adulte et d’un centre pédiatrique. Med Mal Infect 2020. [PMCID: PMC7441859 DOI: 10.1016/j.medmal.2020.06.117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
Introduction Matériels et méthodes Résultats Conclusion
Collapse
|
11
|
Affiliation(s)
- V Faure-Bardon
- EA 73-28, Paris Descartes University, Sorbonne Paris Cité, Paris, France.,Maternity, AP-HP, Hospital Necker-E.M., Paris, France
| | - L J Salomon
- EA 73-28, Paris Descartes University, Sorbonne Paris Cité, Paris, France.,Maternity, AP-HP, Hospital Necker-E.M., Paris, France
| | - M Leruez-Ville
- Maternity, AP-HP, Hospital Necker-E.M., Paris, France.,Virology Laboratory, AP-HP, Hospital Necker-E.M., Paris, France
| | - Y Ville
- EA 73-28, Paris Descartes University, Sorbonne Paris Cité, Paris, France.,Maternity, AP-HP, Hospital Necker-E.M., Paris, France
| |
Collapse
|
12
|
Faure-Bardon V, Millischer AE, Deloison B, Sonigo P, Grévent D, Salomon L, Stirnemann J, Nicloux M, Magny JF, Leruez-Ville M, Ville Y. Refining the prognosis of fetuses infected with Cytomegalovirus in the first trimester of pregnancy by serial prenatal assessment: a single-centre retrospective study. BJOG 2019; 127:355-362. [PMID: 31505103 DOI: 10.1111/1471-0528.15935] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/27/2019] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To define the predictive value (PV) of known prognostic factors of fetal infection with Cytomegalovirus following maternal primary infection <14 weeks of gestation, at different time points of pregnancy: the end of the second trimester; following prenatal magnetic resonance imaging (MRI) at 32 weeks of gestation; and using all ultrasound scans performed in the third trimester (US3rdT). DESIGN A retrospective study. SETTING Reference fetal medicine unit. POPULATION Sixty-two fetuses infected <14 weeks of gestation. METHODS We defined second-trimester assessment (STA) as the combination of ultrasound findings <28 weeks of gestation and fetal platelet count at cordocentesis. Three groups were defined: normal, extracerebral, and cerebral STA. MAIN OUTCOME MEASURES For each group, the PV of STA alone, STA + MRI, and STA + US3rdT were assessed retrospectively. Outcome at birth and at follow-up were reported. RESULTS The STA was normal, and with extracerebral and cerebral features, in 43.5, 42.0, and 14.5%, respectively. The negative PV of normal STA and MRI for moderate to severe sequelae was 100%. The residual risk was unilateral hearing loss in 16.7% of cases. Of pregnancies with cerebral STA, 44% were terminated. Following extracerebral STA, 48% of neonates were symptomatic and 30% had moderate to severe sequelae. In those cases, the positive and negative PV of MRI for sequelae were 33 and 73%, respectively. STA + US3rdT had a lower negative PV than MRI for symptoms at birth and for moderate to severe sequelae. Any false-positive findings at MRI were mostly the result of hypersignals of white matter. CONCLUSIONS Serial assessment in the second and third trimesters by ultrasound and MRI is necessary to predict the risk of sequelae occurring in 35% of pregnancies following fetal infection in the first trimester of pregnancy. TWEETABLE ABSTRACT Serial ultrasound prognostic assessment following fetal CMV infection in the 1st trimester is improved by MRI at 32 weeks.
Collapse
Affiliation(s)
- V Faure-Bardon
- EA 73-28, Paris Descartes University, Sorbonne Paris Cité, Paris, France.,Maternity, Hôpital Necker - Enfants Malades, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - A-E Millischer
- EA 73-28, Paris Descartes University, Sorbonne Paris Cité, Paris, France.,Radiology, Hôpital Necker - Enfants Malades, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - B Deloison
- EA 73-28, Paris Descartes University, Sorbonne Paris Cité, Paris, France.,Maternity, Hôpital Necker - Enfants Malades, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - P Sonigo
- EA 73-28, Paris Descartes University, Sorbonne Paris Cité, Paris, France.,Radiology, Hôpital Necker - Enfants Malades, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - D Grévent
- EA 73-28, Paris Descartes University, Sorbonne Paris Cité, Paris, France.,Radiology, Hôpital Necker - Enfants Malades, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - L Salomon
- EA 73-28, Paris Descartes University, Sorbonne Paris Cité, Paris, France.,Maternity, Hôpital Necker - Enfants Malades, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - J Stirnemann
- EA 73-28, Paris Descartes University, Sorbonne Paris Cité, Paris, France.,Maternity, Hôpital Necker - Enfants Malades, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - M Nicloux
- EA 73-28, Paris Descartes University, Sorbonne Paris Cité, Paris, France.,Neonatal Intensive Care Unit, Hôpital Necker - Enfants Malades, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - J-F Magny
- EA 73-28, Paris Descartes University, Sorbonne Paris Cité, Paris, France.,Neonatal Intensive Care Unit, Hôpital Necker - Enfants Malades, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - M Leruez-Ville
- EA 73-28, Paris Descartes University, Sorbonne Paris Cité, Paris, France.,Virology Laboratory, Reference Laboratory for Cytomegalovirus Infections, Hôpital Necker - Enfants Malades, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - Y Ville
- EA 73-28, Paris Descartes University, Sorbonne Paris Cité, Paris, France.,Maternity, Hôpital Necker - Enfants Malades, Assistance Publique - Hôpitaux de Paris, Paris, France
| |
Collapse
|
13
|
Frange P, Leruez-Ville M. Maribavir, brincidofovir and letermovir: Efficacy and safety of new antiviral drugs for treating cytomegalovirus infections. Med Mal Infect 2018; 48:495-502. [PMID: 29650261 DOI: 10.1016/j.medmal.2018.03.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2017] [Revised: 09/22/2017] [Accepted: 03/16/2018] [Indexed: 12/15/2022]
Abstract
Cytomegalovirus (CMV) infection is a common complication in immunocompromised patients, especially after hematopoietic stem cell or solid organ transplantation. Therapeutic antiviral options [(val)ganciclovir, foscarnet, cidofovir] are still limited and can expose to severe toxicities. Moreover, prolonged antiviral drug exposure and ongoing viral replication are key factors in the development of antiviral drug resistance. After many years of few tangible advances in terms of new antiviral drugs, we are now experiencing an exciting period characterized by a series of phase III clinical trials incorporating three novel agents: maribavir, brincidofovir, and letermovir. This article summarizes the current state of the prevention and treatment of CMV infections as well as data of investigational drugs in clinical development.
Collapse
Affiliation(s)
- P Frange
- Laboratoire de microbiologie clinique, hôpital Necker-Enfants-Malades, Assistance publique-Hôpitaux de Paris (AP-HP), 149, rue de Sèvres, 75015 Paris, France; Unité d'immunologie, hématologie et rhumatologie pédiatriques, hôpital Necker-Enfants-Malades, AP-HP, 149, rue de Sèvres, 75015 Paris, France; EA7327, université Paris Descartes, Sorbonne Paris Cité, 12, rue de l'École-de-Médecine, 75006 Paris, France.
| | - M Leruez-Ville
- Laboratoire de microbiologie clinique, hôpital Necker-Enfants-Malades, Assistance publique-Hôpitaux de Paris (AP-HP), 149, rue de Sèvres, 75015 Paris, France; EA7328, université Paris Descartes, Sorbonne Paris Cité, 12, rue de l'École-de-Médecine, 75006 Paris, France; CNR cytomégalovirus, laboratoire associé, 149, rue de Sèvres, 75015 Paris, France
| |
Collapse
|
14
|
Debray A, Ollier V, Coutard A, Arditty F, Bekkar S, Bodemer C, Leruez-Ville M, Mirand A, Lesage F, Foucaud P. [Acute hemorrhagic edema of infancy associated with Coxsackie virus infection]. Arch Pediatr 2017; 24:1262-1266. [PMID: 29174007 DOI: 10.1016/j.arcped.2017.09.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 07/18/2017] [Accepted: 09/11/2017] [Indexed: 10/18/2022]
Abstract
Acute hemorrhagic edema of infancy is a rare but benign vasculitis occurring in infants aged from 4 to 24 months. Skin lesions can take various forms, including extensive hemorrhagic purpura, and can therefore be mistaken for purpura fulminans if associated with fever, which leads to initiating broad-spectrum antibiotic treatment. In the present case, we describe a 7-month-old boy with acute hemorrhagic edema of infancy and rapidly extensive purpura lesions that led to intravenous cefotaxime and amikacin treatment. Diagnosis was made on the next day by a dermatologist, based on the typical aspect of skin lesions, hemodynamic stability, and negative bacteriological samples. Coxsackie virus B5, a pathogenic enterovirus, was found by specific PCR in cerebrospinal fluid. The outcome was spontaneously favorable after discontinuation of antibiotics on day 2. We discuss the imputability of the enterovirus in triggering this case of acute hemorrhagic edema of infancy.
Collapse
Affiliation(s)
- A Debray
- Service de pédiatrie générale et néonatologie, hôpital André-Mignot, 177, rue de Versailles, 78150 Le Chesnay, France.
| | - V Ollier
- Service de pédiatrie générale et néonatologie, hôpital André-Mignot, 177, rue de Versailles, 78150 Le Chesnay, France
| | - A Coutard
- Service de microbiologie, hôpital André-Mignot, 177, rue de Versailles, 78150 Le Chesnay, France
| | - F Arditty
- Service de pédiatrie générale et néonatologie, hôpital André-Mignot, 177, rue de Versailles, 78150 Le Chesnay, France
| | - S Bekkar
- Service de pédiatrie générale et néonatologie, hôpital André-Mignot, 177, rue de Versailles, 78150 Le Chesnay, France
| | - C Bodemer
- Service de dermatologie, hôpital Necker-Enfants-Malades, AP-HP, 149, rue de Sèvres, 75015 Paris, France
| | - M Leruez-Ville
- Laboratoire de virologie, hôpital Necker-Enfants-Malades, AP-HP, 149, rue de Sèvres, 75015 Paris, France
| | - A Mirand
- Centre de référence des entérovirus et paréchovirus, laboratoire de virologie, CHU de Clermont-Ferrand, 63003 Clermont-Ferrand, France
| | - F Lesage
- Service de réanimation médicochirurgicale, hôpital Necker-Enfants-Malades, AP-HP, 149, rue de Sèvres, 75015 Paris, France
| | - P Foucaud
- Service de pédiatrie générale et néonatologie, hôpital André-Mignot, 177, rue de Versailles, 78150 Le Chesnay, France
| |
Collapse
|
15
|
Parize P, Muth E, Richaud C, Gratigny M, Pilmis B, Lamamy A, Mainardi JL, Cheval J, de Visser L, Jagorel F, Ben Yahia L, Bamba G, Dubois M, Join-Lambert O, Leruez-Ville M, Nassif X, Lefort A, Lanternier F, Suarez F, Lortholary O, Lecuit M, Eloit M. Untargeted next-generation sequencing-based first-line diagnosis of infection in immunocompromised adults: a multicentre, blinded, prospective study. Clin Microbiol Infect 2017; 23:574.e1-574.e6. [DOI: 10.1016/j.cmi.2017.02.006] [Citation(s) in RCA: 102] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 02/03/2017] [Accepted: 02/04/2017] [Indexed: 02/07/2023]
|
16
|
Ville Y, Leruez-Ville M. Reply. Am J Obstet Gynecol 2017; 216:197. [PMID: 27667763 DOI: 10.1016/j.ajog.2016.09.094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Accepted: 09/15/2016] [Indexed: 10/21/2022]
Affiliation(s)
- Y Ville
- Fetal Medicine Unit, Hôpital Necker Enfants Malades, EA 7328, Assistance Publique Hôpitaux de Paris, Université Paris Descartes, Paris 75015, France
| | - M Leruez-Ville
- Clinical Virology, National Reference Laboratory for CMV Unit, Hôpital Necker Enfants Malades, EA 7328, Assistance Publique Hôpitaux de Paris, Université Paris Descartes, Paris 75015, France
| |
Collapse
|
17
|
Frange P, Leruez-Ville M. Traitements antiviraux de l’infection sévère à cytomégalovirus – état des lieux et perspectives. Réanimation 2016. [DOI: 10.1007/s13546-015-1157-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
18
|
Leruez-Ville M, Ghout I, Magny JF, Couderc S, Jacquemard F, Ville Y. In UTERO treatment of cytomegalovirus congenital infection with valacyclovir (CYMEVAL II) NCT01651585. J Clin Virol 2015. [DOI: 10.1016/j.jcv.2015.07.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
19
|
Ghosn J, Leruez-Ville M, Blanche J, Delobelle A, Beaudoux C, Mascard L, Lecuyer H, Canestri A, Landman R, Zucman D, Ponscarme D, Rami A, Viard JP, Spire B, Rouzioux C, Costagliola D, Suzan-Monti M, Ghosn J, Suzan-Monti M, Costagliola D, Leruez-Ville M, Rouzioux C, Spire B, Treluyer JM, Mascard L, Landman R, Zucman D, Ponscarme D, Rami A, Sellier P, Viard JP, Delobelle A, Beaudoux C, Point G, Marchand L, Couffin-Cadiergues S. HIV-1 DNA Levels in Peripheral Blood Mononuclear Cells and Cannabis Use are Associated With Intermittent HIV Shedding in Semen of Men Who Have Sex With Men on Successful Antiretroviral Regimens. Clin Infect Dis 2014; 58:1763-70. [DOI: 10.1093/cid/ciu187] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
20
|
Alain S, Revest M, Veyer D, Essig M, Rerolles JP, Rawlinson W, Mengelle C, Huynh A, Kamar N, Garrigue I, Kaminski H, Segard C, Presne C, Mazeron MC, Avettant-Fenoël V, Lecuit M, Lortholary O, Coaquette A, Hantz S, Leruez-Ville M, Ploy MC. Maribavir use in practice for cytomegalovirus infection in French transplantation centers. Transplant Proc 2013; 45:1603-7. [PMID: 23726629 DOI: 10.1016/j.transproceed.2013.01.082] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2012] [Accepted: 01/24/2013] [Indexed: 01/12/2023]
Abstract
Maribavir (MBV), a UL97 inhibitor, shows good oral bioavailability, low host cell toxicity, and theoretical benefits to inhibit cross-resistant viruses. We herein examined clinical and virological outcomes of 12 patients, including 3 bone marrow recipients and 9 organ recipients infected with resistant cytomegalovirus (CMV) and treated with MBV during 2011-2012. All received at least 800-mg daily doses. They had developed clinical (12/12) and/or virological (11/12) resistance to CMV infection. Based on a decrease of viral load in blood >1.5 log copies/mL half of them responded to MBV treatment. The individual changes varied from a rapid decrease in viral load (n = 4) to no response (n = 3) with some late response slowly decreasing viremia (n = 3). In 2 cases MBV was used as secondary prophylaxis. No clear parameter emerged as a clinical surrogate for nonresponse to MBV. These results contrast with the lack of efficacy in phase III trials of MBV prophylaxis among stem cell recipients, which were possibly due to low doses or inadequate timing of drug initiation in the study. Additional clinical and surrogate laboratory markers are needed to determine antiviral responses to guide MBV use. Dosage ranging studies might benefit future MBV use.
Collapse
Affiliation(s)
- S Alain
- Virology Department, CHU Limoges, University Limoges, Inserm UMR-S1092, National Reference Center for Cytomegaloviruses, Limoges, France.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
21
|
Avettand-Fenoel V, Magny JF, Ville Y, Leruez-Ville M. Utilisation des tests virologiques pour le diagnostic, le pronostic et la surveillance des infections congénitales à cytomégalovirus. Arch Pediatr 2013; 20:204-8. [DOI: 10.1016/j.arcped.2012.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2012] [Revised: 10/02/2012] [Accepted: 10/10/2012] [Indexed: 11/25/2022]
|
22
|
Mhiri L, Boyer B, Goudard M, Mazeron MC, Leruez-Ville M, Slim A, Alain S. [Large diversity of routine methods used for monitoring human cytomegalovirus infections in France]. Pathol Biol (Paris) 2012; 60:352-356. [PMID: 21996434 DOI: 10.1016/j.patbio.2011.08.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2011] [Accepted: 08/31/2011] [Indexed: 05/31/2023]
Abstract
UNLABELLED Monitoring cytomegalovirus circulating viral load is an important parameter of the follow-up in immunocompromised patients. It can be measured either by DNAemia or by pp65 antigenemia. The French national reference center for cytomegaloviruses organized an investigation of practice in 37 teacher hospital virology laboratories to assess the situation in France in 2010. METHODS A questionnaire was sent to collect following information: method used in routine for monitoring of circulating viral load of CMV, assay used, sample matrix and extraction method. RESULTS Thirty-six over thirty-seven laboratories filled the questionnaire. Among these, 67% used the quantitative PCR in routine, 11% antigenemia and 22% antigenemia or quantitative PCR; 87% of the laboratories use whole blood for quantitative PCR, whereas 10% and 3% use plasma and leukocytes respectively. Among the laboratories using DNAemia, 100% used real-time PCR assays, 91% use an automated extraction and 9% a manual extraction. CONCLUSION Thus in France, measurement of DNAemia by real-time PCR is a tool, which gradually replaces the antigenemia for the monitoring of cytomegalovirus infection among immunocompromised patients. The very great diversity of the methods used justifies the installation of a national quality control on total blood, matrix used by 87% of the laboratories.
Collapse
Affiliation(s)
- L Mhiri
- Service de bactériologie-virologie-hygiène, Centre national de référence des cytomégalovirus, laboratoire de virologie, CHU Limoges, 2 avenue Martin Luther King, Limoges, France
| | | | | | | | | | | | | |
Collapse
|
23
|
Leruez-Ville M, Seng R, Morand P, Boufassa F, Boue F, Deveau C, Rouzioux C, Goujard C, Seigneurin JM, Meyer L. Blood Epstein-Barr virus DNA load and risk of progression to AIDS-related systemic B lymphoma. HIV Med 2012; 13:479-87. [PMID: 22414000 DOI: 10.1111/j.1468-1293.2012.00998.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/10/2012] [Indexed: 12/11/2022]
Abstract
BACKGROUND AIDS-related lymphoma (ARL) remains the main cause of AIDS-related deaths in the combined antiretroviral therapy (cART) era. Although most ARLs are associated with the Epstein-Barr virus (EBV), whether patients with high EBV burden are more at risk of developing ARL is unknown. This study investigated the relationship between high blood EBV DNA loads and subsequent progression to ARL. METHODS We identified 43 cases of ARL diagnosed between 1988 and 2007 within two cohorts (ANRS SEROCO/HEMOCO and PRIMO) and for which stored serum and peripheral blood mononuclear cell (PBMC) samples were available within 3 years before ARL diagnosis. For each case, two controls matched for the cohort and CD4 cell count in the year of ARL diagnosis were selected. EBV DNA was measured in PBMCs and serum samples with a commercial kit. RESULTS High levels of EBV DNA in PBMCs collected a median of 10 months before diagnosis were associated with an increased risk of developing systemic B lymphoma (adjusted odds ratio 2.47; 95% confidence interval 1.15; 5.32 for each 1 log copies/10(6) PBMC increase in EBV load) but not with primary brain lymphoma. CONCLUSION In this study, HIV-infected patients with undetectable EBV DNA in PBMCs did not develop ARL in the following 3 years, while high levels of EBV DNA in PBMCs predicted subsequent progression to systemic B lymphoma. Clinicians should be aware of the increased risk of developing systemic B lymphoma in HIV-infected patients with a high blood EBV DNA load.
Collapse
Affiliation(s)
- M Leruez-Ville
- Virology Laboratory, Necker-Enfants-Malades Hospital, AP-HP, Université Paris Descartes, Sorbonne Paris Cité, Paris, France.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
24
|
Odièvre MH, Danékova N, Picard C, Mesples B, BenCheikha Z, Avran D, De Blic J, Leruez-Ville M, Parez N. [Pneumonia due to adenovirus type 7: a case report in a healthy infant]. Arch Pediatr 2011; 18:772-7. [PMID: 21571511 DOI: 10.1016/j.arcped.2011.04.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2010] [Revised: 10/01/2010] [Accepted: 04/04/2011] [Indexed: 11/17/2022]
Abstract
A 15-month-old boy treated with amoxicillin and clavulanic acid therapy for 8 days was admitted for persistent gastroenteritis and fever. He received ceftriaxone for pneumonia modified on day 4 for cefotaxime and josamycin due to extension of alveolar lesions. On day 7, persistent fever and worsened respiratory distress led to addition of rifampicin. The child was then admitted to an intensive care unit. A hemophagocytic syndrome was suspected based on clinical signs and laboratory findings and confirmed by cytological examination of bone marrow. Adenovirus type 7 was identified by polymerase chain reaction and culture of bronchoalveolar fluid. Prognosis was good within 3 weeks. B and T immunologic evaluations were normal 5 months after the infection. This case of severe adenovirus pneumonia was associated with hemophagocytic syndrome in a child without identified primary immunodeficiency. Adenovirus type 3 and 7 are most frequently responsible for severe or fatal respiratory infections.
Collapse
Affiliation(s)
- M-H Odièvre
- Service de pédiatrie, hôpital Louis-Mourier, AP-HP, 178, rue des Renouillers, 92700 Colombes, France.
| | | | | | | | | | | | | | | | | |
Collapse
|
25
|
Orlikowski D, Porcher R, Sivadon-Tardy V, Quincampoix JC, Raphael JC, Durand MC, Sharshar T, Roussi J, Caudie C, Annane D, Rozenberg F, Leruez-Ville M, Gaillard JL, Gault E. Guillain-Barre Syndrome following Primary Cytomegalovirus Infection: A Prospective Cohort Study. Clin Infect Dis 2011; 52:837-44. [DOI: 10.1093/cid/cir074] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
|
26
|
Lemaitre M, Leruez-Ville M, De Lamballerie XN, Salez N, Garrone P, Fluckiger AC, Klatzmann D, Carrat F. Seasonal H1N1 2007 influenza virus infection is associated with elevated pre-exposure antibody titers to the 2009 pandemic influenza A (H1N1) virus. Clin Microbiol Infect 2010; 17:732-7. [PMID: 20731679 DOI: 10.1111/j.1469-0691.2010.03352.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The new influenza strain detected in humans in April 2009 has caused the first influenza pandemic of the 21st century. A cross-reactive antibody response, in which antibodies against seasonal H1N1 viruses neutralized the 2009 pandemic influenza A (H1N1) virus (2009 pH1N1), was detected among individuals aged >60 years. However, factors other than age associated with such a cross-reactive antibody response are poorly documented. Our objective was to examine factors potentially associated with elevated pre-exposure viro-neutralization and hemagglutination-inhibition antibody titers against the 2009 pH1N1. We also studied factors associated with antibody titers against the 2007 seasonal H1N1 virus. One hundred subjects participating in an influenza cohort were selected. Sera collected in 2008 were analysed using hemagglutination inhibition and viro-neutralization assays for the 2009 pH1N1 virus and the 2007 seasonal H1N1 virus. Viro-neutralization results were explored using a linear mixed-effect model and hemagglutination-inhibition results using linear-regression models for interval-censored data. Elevated antibody titers against 2009 pH1N1 were associated with seasonal 2007 H1N1 infection (viro-neutralization, p 0.006; hemagglutination-inhibition, p 0.018). Elevated antibody titers were also associated with age in the viro-neutralization assay (p <0.0001). Seasonal 2007 H1N1 infection is an independent predictor of elevated pre-exposure antibody titers against 2009 pH1N1 and may have contributed to lowering the burden of the 2009 pH1N1 pandemic.
Collapse
Affiliation(s)
- M Lemaitre
- UPMC, Univ Paris 6, UMR-S 707, Paris, France
| | | | | | | | | | | | | | | |
Collapse
|
27
|
Leruez-Ville M, Vauloup-Fellous C, Couderc S, Parat S, Ouchérif S, Castel C, Magny JF. [Retrospective diagnosis of congenital CMV infection in DBS from Guthrie cards: French experience]. Arch Pediatr 2009; 16:1503-6. [PMID: 19801185 DOI: 10.1016/j.arcped.2009.06.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2009] [Accepted: 06/29/2009] [Indexed: 11/26/2022]
Abstract
Systematic screening for cytomegalovirus congenital infection is not performed in France. For children with hearing loss or other neurological CMV compatible symptoms, retrospective diagnosis is possible by PCR detection of CMV DNA in dried blood spot of neonatal Guthrie cards. We report here the results obtained with this technique in the French national reference laboratory for cytomegalovirus.
Collapse
Affiliation(s)
- M Leruez-Ville
- Laboratoire de virologie, centre national de référence du cytomégalovirus-laboratoire associé, hôpital Necker-Enfants-Malades, 149 rue de Sèvres, Paris, France.
| | | | | | | | | | | | | |
Collapse
|
28
|
Leruez-Ville M, Loundon N, Ducroux A, Drouin-Garraud V, Denoyelle F, Marlin S. [Retrospective diagnosis of congenital cytomegalovirus infection in a deaf child using stored dried blood spots and real-time PCR assay]. Virologie (Montrouge) 2008; 12:139-141. [PMID: 36131422 DOI: 10.1684/12-2.2011.10491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Affiliation(s)
- M Leruez-Ville
- Laboratoire de virologie, hôpital Necker-Enfants-malades, Université Paris-Descartes-EA36-206, Laboratoire associé au Centre national du cytomégalovirus, 149, rue de Sèvres, 75015 Paris
| | - N Loundon
- Service d'ORL pédiatrique et de chirurgie cervicofaciale, hôpital Trousseau, Pierre-et-Marie-Curie-Paris-VI, Inserm U587, 26, avenue du Dr Arnold-Netter, 75571 Paris Cedex 12
| | - A Ducroux
- Laboratoire de virologie, hôpital Necker-Enfants-malades, Université Paris-Descartes-EA36-206, Laboratoire associé au Centre national du cytomégalovirus, 149, rue de Sèvres, 75015 Paris
| | - V Drouin-Garraud
- Unité de génétique clinique, CHRU, 1, rue de Germont, 76031 Rouen Cedex
| | - F Denoyelle
- Service d'ORL pédiatrique et de chirurgie cervicofaciale, hôpital Trousseau, Pierre-et-Marie-Curie-Paris-VI, Inserm U587, 26, avenue du Dr Arnold-Netter, 75571 Paris Cedex 12
| | - S Marlin
- Service de génétique et embryologie médicales, hôpital Trousseau, Centre de référence des surdités génétiques, 26, avenue du Dr Arnold-Netter, 75571 Paris Cedex 12
| |
Collapse
|
29
|
Abstract
More than 80% of the cases of respiratory infections in children are of viral origin. Viral culture has been the reference method for the diagnosis of viral respiratory infections for years, but there is now a tendency to replace viral culture by molecular biology techniques, notably real-time PCR-based assay, because of its excellent sensitivity and good feasibility. Currently in most laboratories, however, diagnosis of viral respiratory infections is still done using techniques based on detection of viral antigens, especially immunofluorescence assays. Rapid diagnostic tests for use outside of laboratories are now available on the open market, and even if their sensitivity remains lower than that of other techniques, it is likely that they will become widely used, especially in doctors' offices, in the near future. New methods for the diagnosis of viral infections based on DNA microarray technologies are currently under investigation and appear to be very promising.
Collapse
Affiliation(s)
- M Leruez-Ville
- Laboratoire de virologie EA 3620, hôpital Necker-Enfants-Malades, APHP, université René-Descartes-Paris-V, 149 rue de Sèvres, 75015 Paris, France.
| |
Collapse
|
30
|
Leruez-Ville M. Diagnostic virologique des infections respiratoires. Revue Française d'Allergologie et d'Immunologie Clinique 2006; 46:538-542. [PMID: 32287959 PMCID: PMC7143589 DOI: 10.1016/j.allerg.2006.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Les infections respiratoires de l'enfant sont à 80 % d'origine virale. La culture cellulaire était la technique de référence pour le diagnostic de ces infections mais cette technique tend à être supplantée par les techniques de biologie moléculaire et notamment la PCR en temps réel en raison de son excellente sensibilité et sa bonne praticabilité. Cependant, en pratique courante et dans la plupart des laboratoires, le diagnostic des infections virales respiratoires reste réalisé à l'aide de techniques reposant sur la mise en évidence des antigènes viraux notamment en immunofluorescence. Des tests de diagnostic rapide ou « doctors–tests », praticables en dehors d'un laboratoire, sont actuellement disponibles sur le marché, leur sensibilité reste inférieure à celle des autres techniques mais la généralisation de l'usage de ces tests notamment en cabinet médical est probable dans les années à venir. De nouvelles techniques de diagnostic des infections respiratoires reposant sur l'utilisation de puce à ADN sont en cours de mise au point et semblent très prometteuses.
Collapse
|
31
|
Leruez-Ville M, Chardin-Ouachée M, Neven B, Picard C, Le Guinche I, Fischer A, Rouzioux C, Blanche S. Description of an adenovirus A31 outbreak in a paediatric haematology unit. Bone Marrow Transplant 2006; 38:23-8. [PMID: 16699529 DOI: 10.1038/sj.bmt.1705389] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Adenovirus infections result in significant morbidity and mortality in allogeneic haematopoietic stem cell transplanted (hSCT) children. Adenovirus from species C and B account for more than 90% of adenoviruses recovered after hSCT. However, infections due to adenovirus A31 have been increasingly reported in recent years. Between April 2002 and April 2005, blood samples obtained every 2 weeks from 58 hSCT children were screened for adenovirus species A to C by quantitative real-time PCR. Phylogenetic analysis was realized after amplification and sequencing of the entire hexon gene. Fifteen cases of adenovirus infection with viraemia were recovered during this 3 years period. During spring/summer 2003, seven cases occurred and were due to an adenovirus species A. Phylogenetic analysis of the seven strains showed that they belonged to the A31 genotype and shared 100% homology. Clinical features of the seven HSCT children with A31 adenovirus viraemia are described. We describe here an epidemic spread of adenovirus genotype A31 in a paediatric haematology unit. Timing, location and hexon gene genotyping results highly suggested a nosocomial origin to this epidemic. The burden of adenovirus A31 infection needs to be further assessed in this context.
Collapse
Affiliation(s)
- M Leruez-Ville
- Laboratoire de Virologie, EA 3620 Université Paris V, Hôpital Necker-Enfants Malades AP-HP, Paris, France.
| | | | | | | | | | | | | | | |
Collapse
|
32
|
Fafi-Kremer S, Amiel C, Coste-Burel M, Deback C, Gueudin M, Lafon M, Legoff J, Legrand M, Lependeven C, Leruez-Ville M, Mengelle C, Payan C, Pillet S, Nicolas J, Seigneurin J. Multicenter quality control study for the quantification of Epstein-Barr virus DNA in whole blood specimens. J Clin Virol 2006. [DOI: 10.1016/s1386-6532(06)80806-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
33
|
Leruez-Ville M, Galimand J, Ghosn J, Briat A, Delaugerre C, Chaix ML. [Male genital tract infection: the point of view of the virologist]. ACTA ACUST UNITED AC 2005; 33:684-90. [PMID: 16126433 DOI: 10.1016/j.gyobfe.2005.07.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2005] [Accepted: 07/08/2005] [Indexed: 11/18/2022]
Abstract
Attention to viral infection of the male genital tract has been renewed over the last 15 years as a result of the prolific ongoing research on AIDS. Epidemiological studies of the virus in sperm and male genital tract contributes to the understanding of STD physiopathology and helps assessing their impact on male fertility. Recent advances in this field have allowed to offer Assisted reproductive techniques to couples with chronic viral infection, under strict and specific protocols. This paper presents an overview of these recent developments.
Collapse
Affiliation(s)
- M Leruez-Ville
- Laboratoire de virologie, université Paris-Descartes (EA MRT 3620), faculté de médecine AP-HP, hôpital Necker-Enfants-malades, 149, rue de Sèvres, 75015 Paris, France.
| | | | | | | | | | | |
Collapse
|
34
|
Toulon A, Bourdon-Lanoy E, Hadj-Rabia S, Leruez-Ville M, Fraitag S, Bodemer C, De Prost Y, Hamel D. P176 - Cellulite de Wells compliquant une primo infection à parvovirus B19. Ann Dermatol Venereol 2005. [DOI: 10.1016/s0151-9638(05)79905-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
|
35
|
Sermet-Gaudelus I, de La Rocque F, Salomon JL, Lachassine E, Leruez-Ville M, Baujat G, Trioche P, Valdès L, Parez N, Aujard Y. Infection nosocomiale à rotavirus en pédiatrie générale. Enquête d’observation multicentrique. ACTA ACUST UNITED AC 2004; 52:4-10. [PMID: 14761706 DOI: 10.1016/j.patbio.2003.04.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2003] [Accepted: 04/29/2003] [Indexed: 01/01/2023]
Abstract
OBJECTIVE Rotavirus nosocomial infection (RNI) is frequent in pediatric units. This study was designed to determine the incidence and the main risk factors of RNI in children aged 3 months-3 years and admitted for at least 48 hours days during the epidemic period. PATIENTS AND METHODS A stool sample was obtained within the 24 hours of admission. An additional sample was collected from rotavirus-negative children either the day of discharge, or when they developed abnormal clinical signs. Parents were contacted by phone after discharge. Children initially rotavirus-negative and positive 2 days or more after admission were considered as certain nosocomial cases. In the absence of the second sample, possible nosocomial cases were considered if new symptoms (i.e.; fever and or digestive symptoms) occurred 2 days or more after the first negative sample. RESULTS One hundred and seventeen children were included. The incidence was 11.1% for certain NRI, 16.8% for possible hospital-acquired cases and 19.4% for the whole cases. Possible risk factors were the low number of nurses during the weekend, the great number of medicine students in the unit, and no use of individual material. CONCLUSION NRI have a high incidence, whose reality can only be approximated by taking into account the possible NRI occurring at home after hospital-discharge.
Collapse
Affiliation(s)
- I Sermet-Gaudelus
- Service de pédiatrie générale, hôpital Necker-Enfants-Malades, 149, rue de Sèvres, 75015 Paris cedex, France.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
36
|
Dulioust E, Du AL, Costagliola D, Guibert J, Kunstmann JM, Heard I, Juillard JC, Salmon D, Leruez-Ville M, Mandelbrot L, Rouzioux C, Sicard D, Zorn JR, Jouannet P, De Almeida M. Semen alterations in HIV-1 infected men. Hum Reprod 2002; 17:2112-8. [PMID: 12151446 DOI: 10.1093/humrep/17.8.2112] [Citation(s) in RCA: 97] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Couples in whom the man is infected by human immunodeficiency virus (HIV) increasingly request assisted reproductive technology (ART) to allow safe procreation. Semen quality is critical in such situations. METHODS Semen characteristics were evaluated in 189 HIV-infected men requesting ART. At the time of semen analysis all men were healthy and 177 were receiving anti-retroviral therapy. Comparisons were made with HIV-seronegative men, partners of women requiring IVF because of tubal infertility, after matching for age and sexual abstinence delay. RESULTS The most significant semen alterations found in the HIV-infected men were reduced percentages of rapidly progressive sperm [median (range), 10% (0-30%) compared with 15% (5-30%) in the controls, P < 0.001], and increased concentrations of non-spermatic cells [3 x 10(6)/ml (0.2-16 x 10(6)/ml) compared with 1.1 x 10(6)/ml (0.1-14 x 10(6)/ml) in the controls, P < 0.001]. HIV-infected men also showed lower ejaculate volumes [2.8 ml (0.6-9.3 ml) compared with 3.6 ml (1.1-11 ml), P < 0.05] and total sperm counts [262.5 x 10(6) (0-1003 x 10(6)) compared with 310.5 x 10(6) (48.3-1679 x 10(6)), P < 0.05]. CONCLUSIONS Semen evaluation in a large population of HIV-infected men requesting ART evidenced several alterations. Some of these anomalies might be related to anti-retroviral treatments.
Collapse
Affiliation(s)
- E Dulioust
- Laboratoire de Biologie de la Reproduction, GREFH, Hôpital Cochin-APHP, Université Paris 5, 123 Bd de Port Royal, 75014 Paris, France.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
37
|
Abstract
We detected hepatitis C virus (HCV) RNA in the semen of one third of HCV viraemic men. Seminal viral loads were low, but the semen could be infectious and the role of sexual transmission in the spread of HCV infection should not be underestimated.
Collapse
|
38
|
Abstract
The HCV (hepatitis C virus) Serotyping 1-6 Assay (Murex Laboratories) was evaluated on 303 French HCV-infected patients. Serological typing results were compared to the genotypes obtained from sequence analyses of the 5' noncoding regions of the virus genome from 46 HCV-infected patients, and assay specificity was found to be high (97.6%). The serological typing assay, run in 257 consecutive HCV-infected patients, yielded an assay sensitivity lower (70.6%) than that previously reported. This finding was attributed mainly to nonreactive sera from human immunodeficiency virus (HIV)-positive patients (P < 0.001) and perhaps reflected cryoglobulin positivity in others. No anti-type 6 reactivity was detected, and the overall serological type distribution values for types 1 to 5 were 67.3, 7.9, 16.4, 6.6, and 0.9%, respectively. A higher prevalence of type 4 was noted among HIV-infected patients (P < 0.001). In addition, serotype 2 was significantly more frequent in cryoglobulinemia positive than in cryoglobulinemia-negative patients (P < 0.05). Although an initial high level (7%) of mixed serological typing reactivities was found, after predilution of serum only two mixed infections could be confirmed (0.9%). It is suggested, therefore, that mixed reactivities have to be interpreted carefully and retested with prediluted serum, particularly when the optical density of the reactivity is > 2.5 or remains > 0.4 after competition with all type-specific peptides. The high specificity and relatively good sensitivity even in immunocompromised patients obtained with this assay indicate that it can be used routinely. Because response to treatment is linked to HCV type, this assay could be used to identify HCV serotype to guide therapeutic decisions.
Collapse
Affiliation(s)
- M Leruez-Ville
- Laboratorie de Bactériologie-Virologie, Hôpital Avicenne, UFR Bobigny Université Paris-Nord, France
| | | | | | | | | | | | | |
Collapse
|
39
|
Abstract
Recent reports suggest that hepatitis C virus (HCV) might be a causative agent of mixed cryoglobulinemia. To determine whether the HCV genotype is a factor implicated in the onset of cryoglobulinemia, genotyping by direct sequencing of polymerase chain reaction products of the 5' non coding region was carried out among 45 HCV-infected patients. Genotypes 1 and 2 were found more prevalent in symptomatic cryoglobulinemia patients. Due to the presence of genotypes 4 and 5 found in this panel of French patients (9.3%), HCV genotyping based on sequence determination is recommended.
Collapse
Affiliation(s)
- Q T Nguyen
- Laboratoire de Bactériologie-Virologie, Hôpital Avicenne, Bobigny, France
| | | | | | | | | | | | | | | |
Collapse
|
40
|
Abstract
Recent reports suggest that hepatitis C virus (HCV) might be a causative agent of mixed cryoglobulinemia. To determine whether the HCV genotype is a factor implicated in the onset of cryoglobulinemia, genotyping by direct sequencing of polymerase chain reaction products of the 5' non coding region was carried out among 45 HCV-infected patients. Genotypes 1 and 2 were found more prevalent in symptomatic cryoglobulinemia patients. Due to the presence of genotypes 4 and 5 found in this panel of French patients (9.3%), HCV genotyping based on sequence determination is recommended.
Collapse
Affiliation(s)
- Q T Nguyen
- Laboratoire de Bactériologie-Virologie, Hôpital Avicenne, Bobigny, France
| | | | | | | | | | | | | | | |
Collapse
|
41
|
Gareus R, Gigler A, Hemauer A, Leruez-Ville M, Morinet F, Wolf H, Modrow S. Characterization of cis-acting and NS1 protein-responsive elements in the p6 promoter of parvovirus B19. J Virol 1998; 72:609-16. [PMID: 9420265 PMCID: PMC109414 DOI: 10.1128/jvi.72.1.609-616.1998] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Parvovirus B19 infections are associated with diverse clinical manifestations, ranging from no symptoms to severe symptoms. The virus shows an extreme tropism for replication in erythroid progenitor cells, possibly due to the activity of the only functional promoter (p6) of the B19 virus genome in combination with both cell- and cell cycle-specific factors and the trans-activator protein NS1. As presented here, p6 promoter sequences derived from several B19 virus isolates proved to be highly conserved. Furthermore, mutations did not affect any of the potential binding sites for transcription factors. One variation of the base at position 223 was identified only in B19 virus isolates derived from patients with persistent infection or chronic arthritis. To determine promoter activity and to characterize regulatory elements, sequences spanning the total p6 promoter and subfragments of them were introduced into a eukaryotic expression vector upstream of the luciferase gene (from Photinus pyralis). After transfection into HeLa, CEM, BJAB, and K562 cells, the p6 promoter was found to be highly active. When introduced into the erythroid cell line K562, p6-controlled transcription exceeded that of the simian virus 40 promoter-enhancer used as a control by more than 25-fold. Sequence elements relevant for promoter activity mapped to the regions from nucleotides (nt) 100 to 190 and 233 to 298. Also, the segment from nt 343 to 400 downstream of the TATA box was important for transcriptional activity in HeLa and K562 cells. By transfecting the promoter-luciferase constructs into a HeLa cell line stably carrying the viral NS1 gene under the control of an inducible promoter, transcriptional activity mediated by the p6 promoter rose significantly after induction of NS1 expression. The region from nt 100 to 160 proved to be essential for NS1-mediated transcriptional activation. Furthermore, NS1-mediated transactivation was dependent on the presence of two GC-rich elements arranged in tandem upstream of the TATA box. These data indicate that NS1-mediated p6 transactivation is dependent on a multicomponent complex combining NS1 with ATF, NF-kappaB/c-Rel, and GC-box binding cellular factors.
Collapse
Affiliation(s)
- R Gareus
- Institut für Medizinische Mikrobiologie und Hygiene, Universität Regensburg, Germany
| | | | | | | | | | | | | |
Collapse
|
42
|
Raguin G, Leruez-Ville M, Gregoire V, Deplanche M, Leport C, Morinet F, Vilde JL. Low prevalence of active parvovirus B19 infection in HIV-infected patients. Eur J Clin Microbiol Infect Dis 1997; 16:760-2. [PMID: 9405950 DOI: 10.1007/bf01709261] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
In a prospective study to determine the prevalence of parvovirus B19 in adult patients positive for the human immunodeficiency virus, a series of 55 consecutively presenting patients was tested for antibodies to parvovirus B19 and parvovirus B19 DNA. Specific IgG antibodies were detected in 96% of cases; specific IgM antibodies were present in 10%. Viral DNA was not detected in any of the sera analysed by polymerase chain reaction. Anemia could not be correlated with the presence of either IgG or IgM antibodies to parvovirus B19. Thus, no evidence of acute or chronic parvovirus B19 infection was found in the 55 patients. These findings suggest that active parvovirus B19 infection is uncommon in HIV-infected patients.
Collapse
Affiliation(s)
- G Raguin
- Service de Maladies Infectieuses et Tropicales, Hôpital Bichat-Claude Bernard, Paris, France
| | | | | | | | | | | | | |
Collapse
|
43
|
Leruez-Ville M, Vassias I, Pallier C, Cecille A, Hazan U, Morinet F. Establishment of a cell line expressing human parvovirus B19 non-structural protein from an inducible promoter. J Gen Virol 1997; 78 ( Pt 1):215-9. [PMID: 9010306 DOI: 10.1099/0022-1317-78-1-215] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Human parvovirus B19 non-structural (NS) protein is supposed to play a major role in B19 replication and transcription, and therefore in B19 pathogenicity. Constitutive expression of NS protein in stable cell lines has failed so far, presumably because of its cytotoxicity. To avoid this cytotoxic effect, we have cloned the NS gene in an Epstein-Barr virus episomal vector under the control of a steroid inducible promoter (5xGRE) and transfected this construction into HeLa cells. We obtained stable cell lines inducibly expressing high level of NS protein, with 50% of the cells demonstrating specific nucleo-cytoplasmic staining. In Western blot analysis, three B19 NS proteins (72, 68 and 60 kDa) were found but a unique NS transcript was detected by Northern blotting. The NS protein expressed in HeLa cell lines was demonstrated to be functional as it trans-activates the B19 P6 promoter. These cell lines might be major tools for further study and characterization of B19 NS protein.
Collapse
Affiliation(s)
- M Leruez-Ville
- Service de Microbiologie, Unité de Virologie, Hôpital Saint-Louis, CNRS UPR9051, Paris, France
| | | | | | | | | | | |
Collapse
|
44
|
Palmer P, Pallier C, Leruez-Ville M, Deplanche M, Morinet F. Antibody response to human parvovirus B19 in patients with primary infection by immunoblot assay with recombinant proteins. Clin Diagn Lab Immunol 1996; 3:236-8. [PMID: 8991644 PMCID: PMC170288 DOI: 10.1128/cdli.3.2.236-238.1996] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Human parvovirus B19 recombinant VP1 and VP2 capsid proteins were produced by a procaryotic pGEX expression plasmid to evaluate the humoral response by immunoblot assay in 14 patients with primary infection. The same concentrations of VP1 and VP2 recombinant proteins were used. This demonstrates that VP1 immunoglobulin M detection and/or VP1 immunoglobulin G seroconversion is a reliable marker of primary infections. Consequently, detection of antibodies to B19 VP1 might be helpful for identifying patients at risk for chronic B19 infection or patients who are susceptible to viral reinfection.
Collapse
Affiliation(s)
- P Palmer
- Unité de Virologie, Hôpital Saint-Louis, Paris, France
| | | | | | | | | |
Collapse
|
45
|
Karmochkine M, Oksenhendler E, Leruez-Ville M, Jaccard A, Morinet F, Herson S. Persistent parvovirus B19 infection and pure red cell aplasia in Waldenström's macroglobulinemia: successful treatment with high-dose intravenous immunoglobulin. Am J Hematol 1995; 50:227-8. [PMID: 7485092 DOI: 10.1002/ajh.2830500319] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
|
46
|
|