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Singh D, Kaur L. Maternal Zika Virus Infection in the First Trimester and Fetal Stigmata in the Third Trimester. Indian J Radiol Imaging 2023; 33:400-402. [PMID: 37362378 PMCID: PMC10289841 DOI: 10.1055/s-0043-1761254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2023] Open
Abstract
Zika is a flavivirus that is transmitted primarily by the bite of an infected Aedes mosquito. It can also be transmitted by blood transfusion, sexual contact, and from an infected mother to the unborn baby. Zika virus infection is of particular concern in pregnancy as transplacental transmission of the virus has the potential to cause significant fetal morbidity. Ultrasonography plays a pivotal role in the fetal surveillance of a pregnant woman infected with Zika. There have been outbreaks of Zika virus infection in various parts of India, the most recent occurring in Kanpur in November 2021. We report a case of a primigravida who had Zika virus infection during the first trimester of pregnancy but the fetus presented with the sequelae of infection in the third trimester. This report highlights the sonographic red flags for fetal Zika infection and the importance of serial monitoring in pregnant women exposed to Zika virus.
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Affiliation(s)
- Divya Singh
- Department of Radio-diagnosis, Prime Imaging & Prenatal Diagnostics, Chandigarh, India
| | - Ladbans Kaur
- Department of Radio-diagnosis, Prime Imaging & Prenatal Diagnostics, Chandigarh, India
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2
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Kadawathagedara M, Muckle G, Quénel P, Michineau L, Le Bot B, Hoen B, Tressieres B, Multigner L, Chevrier C, Cordier S. Infant neurodevelopment and behavior in Guadeloupe after lead exposure and Zika maternal infection during pregnancy. Neurotoxicology 2023; 94:135-146. [PMID: 36402195 DOI: 10.1016/j.neuro.2022.11.007] [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: 08/03/2022] [Revised: 11/11/2022] [Accepted: 11/14/2022] [Indexed: 11/18/2022]
Abstract
BACKGROUND Prenatal lead exposure is known to have neurotoxic effects on the developing fetus, while some viral infections may have a tropism for the central nervous system. Our objective was to study whether the effects of prenatal lead exposure on infant development and behaviors at 18 months of age are modified by the occurrence of a maternal infection to Zika virus (ZIKV) during pregnancy. METHODS During the ZIKV epidemic in Guadeloupe in 2016 a cohort of pregnant women was set up. Blood samples (pregnancy, childbirth and cord) (n = 297) enabled us to measure blood lead levels aimed to determine prenatal lead exposure and the likelihood of maternal infection during pregnancy (ZIKV status + vs -). The 18 months "Ages and Stages Questionnaire" (ASQ) was used to generate scores for global development, fine and gross motor skills, communication, problem solving, and personal-social skills. The questions from a longitudinal cohort study conducted in Canada (Québec) were used to generate hyperactivity, opposition, inattention and physical aggression scores. Associations were tested by multivariate linear regressions. RESULTS Prenatal lead exposure was associated with delays in neurodevelopment at 18 months, reflected by lower scores in ASQ totals, and in the fine motor and problem-solving domains. Some of these associations appeared to be sex-specific, observed almost exclusively in boys (ASQ total, fine motor and personal-social scores). Prenatal lead exposure was not associated with behavioral scores. ZIKV infection during pregnancy was associated with a lower fine motor ASQ score, and higher scores for hyperactivity, opposition and physical aggression. Significant interaction between prenatal lead exposure and ZIKV status was observed with a lower personal-social score in ZIKV (-) only, and for hyperactivity and inattention scores, though some of these interactions (ASQ personal-social score, inattention score) were no longer significant when children with microcephaly were excluded from the analyses. DISCUSSION/CONCLUSION Our study confirms previous findings of associations between prenatal exposure to lead at low levels and adverse neurodevelopmental outcomes during infancy and the particular vulnerability of boys. It suggests associations between ZIKV infection during pregnancy and adverse effects on a number of neurodevelopmental functions (fine motor function) and behaviors (opposition, hyperactivity), that need to be confirmed at later age. There is no strong evidence of interaction between ZIKV infection and lead exposure but both prenatal risk factors may affect fine motor function.
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Affiliation(s)
- M Kadawathagedara
- Univ Rennes, EHESP, Inserm, IRSET UMR_S 1085, F-35000 Rennes, France
| | - G Muckle
- École de psychologie, Université Laval, et Centre de recherche du CHU de Québec-Université Laval, Québec, Canada
| | - P Quénel
- Univ Rennes, EHESP, Inserm, IRSET UMR_S 1085, F-35000 Rennes, France
| | - L Michineau
- Univ Rennes, EHESP, Inserm, IRSET UMR_S 1085, F-35000 Rennes, France
| | - B Le Bot
- Univ Rennes, EHESP, Inserm, IRSET UMR_S 1085, F-35000 Rennes, France
| | - B Hoen
- Centre d'Investigation Clinique Antilles Guyane CIC 1424 Inserm, CHU de Guadeloupe, 97159 Pointe-à-Pitre, France
| | - B Tressieres
- Centre d'Investigation Clinique Antilles Guyane CIC 1424 Inserm, CHU de Guadeloupe, 97159 Pointe-à-Pitre, France
| | - L Multigner
- Univ Rennes, EHESP, Inserm, IRSET UMR_S 1085, F-35000 Rennes, France
| | - C Chevrier
- Univ Rennes, EHESP, Inserm, IRSET UMR_S 1085, F-35000 Rennes, France
| | - S Cordier
- Univ Rennes, EHESP, Inserm, IRSET UMR_S 1085, F-35000 Rennes, France.
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3
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Kadawathagedara M, Muckle G, Cordier S, Michineau L, Tressieres B, Mallard A, Kovacic L, Multigner L, Quénel P, Chevrier C. Simultaneous exposure to both Zika virus and household insecticides during pregnancy, and fetal growth and infant developmental behavior outcomes at 18 months, in Guadeloupe. ENVIRONMENTAL RESEARCH 2022; 215:114256. [PMID: 36096163 DOI: 10.1016/j.envres.2022.114256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 08/22/2022] [Accepted: 08/31/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Perinatal infection with Zika virus (ZIKV) could result in adverse growth, developmental and behavioral outcomes, while insecticides used to control mosquitoes are neurotoxic. OBJECTIVES We aim to study the role played by exposure during pregnancy to both ZIKV and household insecticides in newborn health, development and behavior at age of 18 months. METHODS Maternal and cord blood samples from a cohort of pregnant women (created during Guadeloupe's Zika epidemic of 2016) were used to identify ZIKV infection during pregnancy. A self-administered questionnaire at birth documented prenatal household use of insecticides. Birth weight and head circumference were collected from maternity records (n = 708). Infant development and behaviors were documented at 18 months of age through the Ages and Stages Questionnaire and the Quebec Longitudinal Study of Child Development (n = 409). Logistic and linear regression models were performed, taking into account confounding factors. RESULTS Use of household insecticides was associated with smaller head circumference and lower birth weight among newborns from mothers not exposed to ZIKV: 0.3 cm (95% CI: 0.6, 0) and -82 g (95% CI: 165, 0), respectively. Similar decreases were observed with ZIKV exposure among mothers not reporting household insecticides use, and with presence of both exposures. The combined presence of ZIKV exposure and insecticide use was associated with lower ASQ fine motor scores (-3.9; 95% CI: 7.3, -0.4), and higher hyperactivity scores (0.8; 95% CI: 0.0, 1.5), compared to no exposure to either. A higher opposition score was observed in association with ZIKV exposure among non-users of insecticide (0.6; 95% CI: 0.0, 1.2). CONCLUSION Adverse neurodevelopmental outcomes at 18 months of age were observed with prenatal ZIKV exposure, and with higher magnitude when mothers reported use of household insecticides. At birth, rates of adverse fetal growth were however similar for the combined presence of exposure and either of the exposures.
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Affiliation(s)
- M Kadawathagedara
- Univ Rennes, EHESP, Inserm, IRSET UMR_S 1085, F-3500, Rennes, France.
| | - G Muckle
- École de Psychologie, Université Laval, et Centre de Recherche du CHU de Québec-Université Laval, Québec, Canada
| | - S Cordier
- Univ Rennes, EHESP, Inserm, IRSET UMR_S 1085, F-3500, Rennes, France
| | - L Michineau
- Univ Rennes, EHESP, Inserm, IRSET UMR_S 1085, F-3500, Rennes, France
| | - B Tressieres
- Centre d'Investigation Clinique Antilles Guyane, Inserm, CIC 1424, 97159 Pointe-à-Pitre, France
| | - A Mallard
- Centre d'Investigation Clinique Antilles Guyane, Inserm, CIC 1424, 97159 Pointe-à-Pitre, France
| | - L Kovacic
- Centre d'Investigation Clinique Antilles Guyane, Inserm, CIC 1424, 97159 Pointe-à-Pitre, France
| | - L Multigner
- Univ Rennes, EHESP, Inserm, IRSET UMR_S 1085, F-3500, Rennes, France
| | - P Quénel
- Univ Rennes, EHESP, Inserm, IRSET UMR_S 1085, F-3500, Rennes, France
| | - C Chevrier
- Univ Rennes, EHESP, Inserm, IRSET UMR_S 1085, F-3500, Rennes, France
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Yu W, Hu X, Cao B. Viral Infections During Pregnancy: The Big Challenge Threatening Maternal and Fetal Health. MATERNAL-FETAL MEDICINE 2022; 4:72-86. [PMID: 35187500 PMCID: PMC8843053 DOI: 10.1097/fm9.0000000000000133] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 11/11/2021] [Indexed: 12/18/2022] Open
Abstract
Viral infections during pregnancy are associated with adverse pregnancy outcomes, including maternal and fetal mortality, pregnancy loss, premature labor, and congenital anomalies. Mammalian gestation encounters an immunological paradox wherein the placenta balances the tolerance of an allogeneic fetus with protection against pathogens. Viruses cannot easily transmit from mother to fetus due to physical and immunological barriers at the maternal-fetal interface posing a restricted threat to the fetus and newborns. Despite this, the unknown strategies utilized by certain viruses could weaken the placental barrier to trigger severe maternal and fetal health issues especially through vertical transmission, which was not fully understood until now. In this review, we summarize diverse aspects of the major viral infections relevant to pregnancy, including the characteristics of pathogenesis, related maternal-fetal complications, and the underlying molecular and cellular mechanisms of vertical transmission. We highlight the fundamental signatures of complex placental defense mechanisms, which will prepare us to fight the next emerging and re-emerging infectious disease in the pregnancy population.
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Affiliation(s)
- Wenzhe Yu
- Fujian Provincial Key Laboratory of Reproductive Health Research, School of Medicine, Xiamen University, Xiamen, Fujian 361102, China
| | - Xiaoqian Hu
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, Fujian 361102, China
| | - Bin Cao
- Fujian Provincial Key Laboratory of Reproductive Health Research, School of Medicine, Xiamen University, Xiamen, Fujian 361102, China
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Dhodapkar R, Shanmugam L, Kumaresan M, Kundu R, Gunalan A. Arboviruses in human disease: An Indian perspective. INTERNATIONAL JOURNAL OF ADVANCED MEDICAL AND HEALTH RESEARCH 2022. [DOI: 10.4103/ijamr.ijamr_237_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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Arzua T, Jiang C, Yan Y, Bai X. The importance of non-coding RNAs in environmental stress-related developmental brain disorders: A systematic review of evidence associated with exposure to alcohol, anesthetic drugs, nicotine, and viral infections. Neurosci Biobehav Rev 2021; 128:633-647. [PMID: 34186153 PMCID: PMC8357057 DOI: 10.1016/j.neubiorev.2021.06.033] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 05/23/2021] [Accepted: 06/23/2021] [Indexed: 12/11/2022]
Abstract
Brain development is a dynamic and lengthy process that includes cell proliferation, migration, neurogenesis, gliogenesis, synaptogenesis, and pruning. Disruption of any of these developmental events can result in long-term outcomes ranging from brain structural changes, to cognitive and behavioral abnormality, with the mechanisms largely unknown. Emerging evidence suggests non-coding RNAs (ncRNAs) as pivotal molecules that participate in normal brain development and neurodevelopmental disorders. NcRNAs such as long non-coding RNAs (lncRNAs) and microRNAs (miRNAs) are transcribed from the genome but not translated into proteins. Many ncRNAs have been implicated as tuners of cell fate. In this review, we started with an introduction of the current knowledge of lncRNAs and miRNAs, and their potential roles in brain development in health and disorders. We then reviewed and discussed the evidence of ncRNA involvement in abnormal brain development resulted from alcohol, anesthetic drugs, nicotine, and viral infections. The complex connections among these ncRNAs were also discussed, along with potential overlapping ncRNA mechanisms, possible pharmacological targets for therapeutic/neuroprotective interventions, and potential biomarkers for brain developmental disorders.
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Affiliation(s)
- Thiago Arzua
- Department of Cell Biology, Neurobiology & Anatomy, Medical College of Wisconsin, Milwaukee, WI, 53226, USA; Department of Physiology, Medical College of Wisconsin, Milwaukee, WI, 53226, USA
| | - Congshan Jiang
- Department of Anesthesiology, Medical College of Wisconsin, Milwaukee, WI, 53226, USA
| | - Yasheng Yan
- Department of Cell Biology, Neurobiology & Anatomy, Medical College of Wisconsin, Milwaukee, WI, 53226, USA
| | - Xiaowen Bai
- Department of Cell Biology, Neurobiology & Anatomy, Medical College of Wisconsin, Milwaukee, WI, 53226, USA; Center of Systems Molecular Medicine, Medical College of Wisconsin, Milwaukee, WI, 53226, USA.
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Differences in Placental Histology Between Zika Virus-infected Teenagers and Older Women. Int J Gynecol Pathol 2021; 41:389-396. [PMID: 34347668 DOI: 10.1097/pgp.0000000000000807] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
In pregnant women, Zika virus (ZIKV) is associated with a congenital syndrome, most frequently involving damage to embryo brain formation and the development of microcephaly. The mechanism(s) by which ZIKV enters the maternal-fetal interface and is transmitted to the fetus remains incompletely determined. We sought to evaluate histologic changes in the placenta of ZIKV-infected pregnant women and to determine if this varied by maternal age. Placental samples were obtained from 66 women, 33 of whom were positive for ZIKV. Histologic evaluations were performed on 4 areas of the placenta: fetal surface, maternal surface, umbilical cord, and membranes. Samples were analyzed by the tissue microarray technique and tested for CD4, CD8, CD20, CD68, FOXP3, and cyclooxygenase-2 expression. Data were evaluated using Fisher exact test. ZIKV infection was more frequent in women less than 18 yr of age (9/11, 81.8%) than in women above 18 yr old (24/55, 43.6%) (P=0.0440). ZIKV detection was associated with neutrophilic chorioamnionitis (P=0.0332) and with septal (P=0.0244) and villous (P=0.0534) calcification. Hofbauer cell hyperplasia (P=0.0260) and cyclooxygenase-2 expression (P=0.0346) were more prevalent in ZIKV-positive women aged 18 yr and below than in the older ZIKV-positive women. ZIKV infection during pregnancy occurs more frequently in adolescents and induces higher rates of damage at the maternal-fetal interface than in older women.
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Rosa-Fernandes L, Barbosa RH, dos Santos MLB, Angeli CB, Silva TP, Melo RCN, de Oliveira GS, Lemos B, Van Eyk JE, Larsen MR, Cardoso CA, Palmisano G. Cellular Imprinting Proteomics Assay: A Novel Method for Detection of Neural and Ocular Disorders Applied to Congenital Zika Virus Syndrome. J Proteome Res 2020; 19:4496-4515. [PMID: 32686424 PMCID: PMC7640952 DOI: 10.1021/acs.jproteome.0c00320] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Indexed: 12/24/2022]
Abstract
Congenital Zika syndrome was first described due to increased incidence of congenital abnormalities associated with Zika virus (ZIKV) infection. Since the eye develops as part of the embryo central nervous system (CNS) structure, it becomes a specialized compartment able to display symptoms of neurodegenerative diseases and has been proposed as a noninvasive approach to the early diagnosis of neurological diseases. Ocular lesions result from defects that occurred during embryogenesis and can become apparent in newborns exposed to ZIKV. Furthermore, the absence of microcephaly cannot exclude the occurrence of ocular lesions and other CNS manifestations. Considering the need for surveillance of newborns and infants with possible congenital exposure, we developed a method termed cellular imprinting proteomic assay (CImPA) to evaluate the ocular surface proteome specific to infants exposed to ZIKV during gestation compared to nonexposure. CImPA combines surface cells and fluid capture using membrane disks and a large-scale quantitative proteomics approach, which allowed the first-time report of molecular alterations such as neutrophil degranulation, cell death signaling, ocular and neurological pathways, which are associated with ZIKV infection with and without the development of congenital Zika syndrome, CZS. Particularly, infants exposed to ZIKV during gestation and without early clinical symptoms could be detected using the CImPA method. Lastly, this methodology has broad applicability as it could be translated in the study of several neurological diseases to identify novel diagnostic biomarkers. Data are available via ProteomeXchange with identifier PXD014038.
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Affiliation(s)
- Livia Rosa-Fernandes
- GlycoProteomics
Laboratory, Department of Parasitology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
- Department
of Biochemistry and Molecular Biology, University
of Southern Denmark, Odense, Denmark
| | - Raquel Hora Barbosa
- GlycoProteomics
Laboratory, Department of Parasitology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
- Molecular
and Integrative Physiological Sciences Program, Department of Environmental
Health, Harvard School of Public Health, Boston, Massachusetts, United States
- Maternal
and Child Department, Faculty of Medicine, Fluminense Federal University, Niteroi, Rio de Janeiro, Brazil
- Genetics
Program, National Cancer Institute, Rio de Janeiro, Brazil
| | - Maria Luiza B. dos Santos
- Maternal
and Child Department, Faculty of Medicine, Fluminense Federal University, Niteroi, Rio de Janeiro, Brazil
| | - Claudia B. Angeli
- GlycoProteomics
Laboratory, Department of Parasitology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Thiago P. Silva
- Laboratory
of Cellular Biology, Department of Biology, Federal University of Juiz de Fora, Juiz de Fora, Minas Gerais, Brazil
| | - Rossana C. N. Melo
- Laboratory
of Cellular Biology, Department of Biology, Federal University of Juiz de Fora, Juiz de Fora, Minas Gerais, Brazil
| | - Gilberto Santos de Oliveira
- GlycoProteomics
Laboratory, Department of Parasitology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Bernardo Lemos
- Molecular
and Integrative Physiological Sciences Program, Department of Environmental
Health, Harvard School of Public Health, Boston, Massachusetts, United States
| | - Jennifer E Van Eyk
- Advanced
Clinical BioSystems Research Institute, Cedars Sinai Precision Biomarker
Laboratories, Barbra Streisand Women’s Heart Center, Cedars-Sinai Medical Center, Los Angeles, California, United States
| | - Martin R. Larsen
- Department
of Biochemistry and Molecular Biology, University
of Southern Denmark, Odense, Denmark
| | - Claudete Araújo Cardoso
- Maternal
and Child Department, Faculty of Medicine, Fluminense Federal University, Niteroi, Rio de Janeiro, Brazil
| | - Giuseppe Palmisano
- GlycoProteomics
Laboratory, Department of Parasitology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
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Adachi K, Romero T, Nielsen-Saines K, Pone S, Aibe M, Barroso de Aguiar E, Sim M, Brasil P, Zin A, Tsui I, Gaw SL, Halai UA, Vasconcelos Z, Pereira JP, Salles TS, Barbosa CN, Portari E, Cherry JD, Pone M, Moreira ME. Early Clinical Infancy Outcomes for Microcephaly and/or Small for Gestational Age Zika-Exposed Infants. Clin Infect Dis 2020; 70:2663-2672. [PMID: 31346616 PMCID: PMC7286378 DOI: 10.1093/cid/ciz704] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 07/25/2019] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Zika-exposed infants with microcephaly (proportional or disproportional) and those who are small for gestational age without microcephaly should be closely followed, particularly their growth trajectories. They are at high risk of adverse outcomes in the first year of life.Antenatal Zika virus (ZIKV) exposure may lead to adverse infant outcomes including microcephaly and being small for gestational age (SGA). ZIKV-exposed infants with a diagnosis of microcephaly (proportional [PM] or disproportional [DM]) or SGA at birth were evaluated with anthropometric measurements and health outcomes. METHODS Infants had laboratory-confirmed ZIKV exposure in Brazil. PM, DM, or SGA classification was based on head circumference and weight. First-year growth parameters and clinical outcomes were recorded with analyses performed. RESULTS Among the 156 ZIKV-exposed infants, 14 (9.0%) were SGA, 13 (8.3%) PM, 13 (8.3%) DM, and 116 (74.4%) were neither SGA nor had microcephaly (NSNM). High rates of any neurologic, ophthalmologic, and hearing abnormalities were observed for PM (100%), DM (100%), and SGA (42.9%) vs NSNM infants (18.3%; P <.001); odds ratio [OR], 3.4 (95% confidence interval [CI], 1.1-10.7) for SGA vs NSNM. Neuroimaging abnormalities were seen in 100% of PM and DM and in 42.9% of SGA vs NSNM infants 16%; (P <.001); OR 3.9 (95% CI, 1.2-12.8) for SGA vs NSNM. Growth rates by z score, particularly for microcephaly infants, were poor after birth but showed improvement beyond 4 months of life. CONCLUSIONS ZIKV-exposed infants with microcephaly (PM and DM) had similarly high rates of adverse outcomes but showed improvement in growth measurements beyond 4 months of life. While SGA infants had fewer adverse outcomes compared with microcephaly infants, notable adverse outcomes were observed in some; their odds of having adverse outcomes were 3 to 4 times greater compared to NSNM infants.Zika-exposed infants with microcephaly, irrespective of being proportional or disproportional, and those who are small for gestational age without microcephaly should be closely followed, particularly their growth trajectories. They are at high risk of adverse outcomes in the first year of life.
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Affiliation(s)
- Kristina Adachi
- Department of Pediatrics, David Geffen School of Medicine, University of California–Los Angeles, California, USA
| | - Tahmineh Romero
- Department of Biostatistics, David Geffen School of Medicine, University of California–Los Angeles, California, USA
| | - Karin Nielsen-Saines
- Department of Pediatrics, David Geffen School of Medicine, University of California–Los Angeles, California, USA
| | - Sheila Pone
- Instituto Nacional de Saúde da Mulher, da Criança e do Adolescente Fernandes Figueira, Fundação Oswaldo Cruz, Janeiro, Brazil
| | - Mitsue Aibe
- Instituto Nacional de Saúde da Mulher, da Criança e do Adolescente Fernandes Figueira, Fundação Oswaldo Cruz, Janeiro, Brazil
| | - Elisa Barroso de Aguiar
- Instituto Nacional de Saúde da Mulher, da Criança e do Adolescente Fernandes Figueira, Fundação Oswaldo Cruz, Janeiro, Brazil
| | - Myung Sim
- Department of Biostatistics, David Geffen School of Medicine, University of California–Los Angeles, California, USA
| | - Patricia Brasil
- Laboratorio de Doenças Febris Agudas, Instituto de Infectologia Evandro Chagas, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Andrea Zin
- Instituto Nacional de Saúde da Mulher, da Criança e do Adolescente Fernandes Figueira, Fundação Oswaldo Cruz, Janeiro, Brazil
| | - Irena Tsui
- Jules Stein Eye Institute, David Geffen School of Medicine, University of California–Los Angeles, California, USA
| | - Stephanie L Gaw
- Department of Obstetrics Gynecology, University of California–San Francisco School of Medicine, San Francisco, California, USA
| | - Umme-Aiman Halai
- Department of Medicine, David Geffen School of Medicine, University of California–Los Angeles, California, USA
| | - Zilton Vasconcelos
- Instituto Nacional de Saúde da Mulher, da Criança e do Adolescente Fernandes Figueira, Fundação Oswaldo Cruz, Janeiro, Brazil
| | - Jose Paulo Pereira
- Instituto Nacional de Saúde da Mulher, da Criança e do Adolescente Fernandes Figueira, Fundação Oswaldo Cruz, Janeiro, Brazil
| | - Tania Saad Salles
- Instituto Nacional de Saúde da Mulher, da Criança e do Adolescente Fernandes Figueira, Fundação Oswaldo Cruz, Janeiro, Brazil
| | - Claudia Neves Barbosa
- Instituto Nacional de Saúde da Mulher, da Criança e do Adolescente Fernandes Figueira, Fundação Oswaldo Cruz, Janeiro, Brazil
| | - Elyzabeth Portari
- Instituto Nacional de Saúde da Mulher, da Criança e do Adolescente Fernandes Figueira, Fundação Oswaldo Cruz, Janeiro, Brazil
| | - James D Cherry
- Department of Pediatrics, David Geffen School of Medicine, University of California–Los Angeles, California, USA
| | - Marcos Pone
- Instituto Nacional de Saúde da Mulher, da Criança e do Adolescente Fernandes Figueira, Fundação Oswaldo Cruz, Janeiro, Brazil
| | - Maria Elisabeth Moreira
- Department of Biostatistics, David Geffen School of Medicine, University of California–Los Angeles, California, USA
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Luo S, Zhao W, Ma X, Zhang P, Liu B, Zhang L, Wang W, Wang Y, Fu Y, Allain JP, Li T, Li C. A high infectious simian adenovirus type 23 vector based vaccine efficiently protects common marmosets against Zika virus infection. PLoS Negl Trop Dis 2020; 14:e0008027. [PMID: 32049958 PMCID: PMC7015313 DOI: 10.1371/journal.pntd.0008027] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2019] [Accepted: 01/03/2020] [Indexed: 01/08/2023] Open
Abstract
Zika virus (ZIKV) has spread in many countries or territories causing severe neurologic complications with potential fatal outcomes. The small primate common marmosets are susceptible to ZIKV, mimicking key features of human infection. Here, a novel simian adenovirus type 23 vector-based vaccine expressing ZIKV pre-membrane-envelope proteins (Sad23L-prM-E) was produced in high infectious titer. Due to determination of immunogenicity in mice, a single-dose of 3×108 PFU Sad23L-prM-E vaccine was intramuscularly inoculated to marmosets. This vaccine raised antibody titers of 104.07 E-specific and 103.13 neutralizing antibody (NAb), as well as robust specific IFN-γ secreting T-cell response (1,219 SFCs/106 cells) to E peptides. The vaccinated marmosets, upon challenge with a high dose of ZIKV (105 PFU) six weeks post prime immunization, reduced viremia by more than 100 folds, and the low level of detectable viral RNA (<103 copies/ml) in blood, saliva, urine and feces was promptly eliminated when the secondary NAb (titer >103.66) and T-cell response (>726 SFCs/106 PBMCs) were acquired 1–2 weeks post exposure to ZIKV, while non-vaccinated control marmosets developed long-term high titer of ZIKV (105.73 copies/ml) (P<0.05). No significant pathological lesions were observed in marmoset tissues. Sad23L-prM-E vaccine was detectable in spleen, liver and PBMCs at least 4 months post challenge. In conclusion, a prime immunization with Sad23L-prM-E vaccine was able to protect marmosets against ZIKV infection when exposed to a high dose of ZIKV. This Sad23L-prM-E vaccine is a promising vaccine candidate for prevention of ZIKV infection in humans. Zika virus (ZIKV) is a member of the Flaviviridaefamily) and causes severe neurologic diseases. The development of safe and effective vaccine is urgent need. In this study, we constructed a novel simian adenovirus type 23 vector-based vaccine expressing ZIKV pre-membrane-envelope proteins (Sad23L-prM-E). By vaccinating the common marmosets with prime immunization of vaccine, and upon challenge with a high dose of ZIKV to the vaccinated marmosets, the immune response and protective efficacy of vaccine were extensively evaluated. The data suggested that Sad23L-prM-E vaccine could protect marmosets against a high dose of ZIKV challenge, which provided a promising vaccine for preventing ZIKV infection in humans.
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Affiliation(s)
- Shengxue Luo
- Department of Transfusion Medicine, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, China
| | - Wei Zhao
- Laboratory of Biosafety, School of Public Health, Southern Medical University, Guangzhou, China
| | - Xiaorui Ma
- Department of Transfusion Medicine, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, China
| | - Panli Zhang
- Department of Transfusion Medicine, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, China
| | - Bochao Liu
- Department of Transfusion Medicine, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, China
| | - Ling Zhang
- Department of Transfusion Medicine, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, China
| | - Wenjing Wang
- Department of Transfusion Medicine, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, China
| | - Yuanzhan Wang
- Experimental Animal Center, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | | | - Jean-Pierre Allain
- Department of Transfusion Medicine, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, China
- Emeritus professor, University of Cambridge, Cambridge, United Kingdom
| | - Tingting Li
- Department of Transfusion Medicine, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, China
- * E-mail: (TL); (CL)
| | - Chengyao Li
- Department of Transfusion Medicine, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, China
- * E-mail: (TL); (CL)
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Zika virus NS5 protein inhibits cell growth and invasion of glioma. Biochem Biophys Res Commun 2019; 516:515-520. [PMID: 31230744 DOI: 10.1016/j.bbrc.2019.06.064] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Accepted: 06/13/2019] [Indexed: 02/05/2023]
Abstract
Glioma is the most common primary brain tumor with high mortality. Given the poor outcomes with standard-of-care treatments, novel treatment strategies are needed. Oncolytic viral therapy for glioma has developed as an exciting therapeutic method in recent years. Zika virus, a member of flavivirus family, has oncolytic activity against glioma cells but the mechanism is unknown. Here, we aimed to determine which viral protein might play a critical role in mitigating glioma cell growth. We examined the tumor suppressor function of four nonstructural proteins NS1, NS3, NS4B and NS5 in human glioma cell line U87. As a result, we found that only NS5 significantly inhibited proliferation, migration and invasion of U87 cells. Moreover, expression of NS5 suppressed tumorigenicity of mouse GL261 glioma cell in vivo. Our findings provide some clues for further exploration of oncolytic Zika virus in the treatment of glioma.
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Logan S, Arzua T, Canfield SG, Seminary ER, Sison SL, Ebert AD, Bai X. Studying Human Neurological Disorders Using Induced Pluripotent Stem Cells: From 2D Monolayer to 3D Organoid and Blood Brain Barrier Models. Compr Physiol 2019; 9:565-611. [PMID: 30873582 PMCID: PMC6705133 DOI: 10.1002/cphy.c180025] [Citation(s) in RCA: 82] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Neurological disorders have emerged as a predominant healthcare concern in recent years due to their severe consequences on quality of life and prevalence throughout the world. Understanding the underlying mechanisms of these diseases and the interactions between different brain cell types is essential for the development of new therapeutics. Induced pluripotent stem cells (iPSCs) are invaluable tools for neurological disease modeling, as they have unlimited self-renewal and differentiation capacity. Mounting evidence shows: (i) various brain cells can be generated from iPSCs in two-dimensional (2D) monolayer cultures; and (ii) further advances in 3D culture systems have led to the differentiation of iPSCs into organoids with multiple brain cell types and specific brain regions. These 3D organoids have gained widespread attention as in vitro tools to recapitulate complex features of the brain, and (iii) complex interactions between iPSC-derived brain cell types can recapitulate physiological and pathological conditions of blood-brain barrier (BBB). As iPSCs can be generated from diverse patient populations, researchers have effectively applied 2D, 3D, and BBB models to recapitulate genetically complex neurological disorders and reveal novel insights into molecular and genetic mechanisms of neurological disorders. In this review, we describe recent progress in the generation of 2D, 3D, and BBB models from iPSCs and further discuss their limitations, advantages, and future ventures. This review also covers the current status of applications of 2D, 3D, and BBB models in drug screening, precision medicine, and modeling a wide range of neurological diseases (e.g., neurodegenerative diseases, neurodevelopmental disorders, brain injury, and neuropsychiatric disorders). © 2019 American Physiological Society. Compr Physiol 9:565-611, 2019.
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Affiliation(s)
- Sarah Logan
- Department of Cell Biology, Neurobiology & Anatomy, Medical College of Wisconsin, Milwaukee, WI, USA
- Department of Physiology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Thiago Arzua
- Department of Cell Biology, Neurobiology & Anatomy, Medical College of Wisconsin, Milwaukee, WI, USA
- Department of Physiology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Scott G. Canfield
- Department of Cellular & Integrative Physiology, IU School of Medicine-Terre Haute, Terre Haute, IN, USA
| | - Emily R. Seminary
- Department of Cell Biology, Neurobiology & Anatomy, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Samantha L. Sison
- Department of Cell Biology, Neurobiology & Anatomy, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Allison D. Ebert
- Department of Cell Biology, Neurobiology & Anatomy, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Xiaowen Bai
- Department of Cell Biology, Neurobiology & Anatomy, Medical College of Wisconsin, Milwaukee, WI, USA
- Department of Physiology, Medical College of Wisconsin, Milwaukee, WI, USA
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Gharbaran R, Somenarain L. Putative Cellular and Molecular Roles of Zika Virus in Fetal and Pediatric Neuropathologies. Pediatr Dev Pathol 2019; 22:5-21. [PMID: 30149771 DOI: 10.1177/1093526618790742] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Although the World Health Organization declared an end to the recent Zika virus (ZIKV) outbreak and its association with adverse fetal and pediatric outcome, on November 18, 2016, the virus still remains a severe public health threat. Laboratory experiments thus far supported the suspicions that ZIKV is a teratogenic agent. Evidence indicated that ZIKV infection cripples the host cells' innate immune responses, allowing productive replication and potential dissemination of the virus. In addition, studies suggest potential transplacental passage of the virus and subsequent selective targeting of neural progenitor cells (NPCs). Depletion of NPCs by ZIKV is associated with restricted brain growth. And while microcephaly can result from infection at any gestational stages, the risk is greater during the first trimester. Although a number of recent studies revealed some of specific molecular and cellular roles of ZIKV proteins of this mosquito-borne flavivirus, the mechanisms by which it produces it suspected pathophysiological effects are not completely understood. Thus, this review highlights the cellular and molecular evidence that implicate ZIKV in fetal and pediatric neuropathologies.
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Affiliation(s)
- Rajendra Gharbaran
- 1 Department of Biological Sciences, Bronx Community College, The City University of New York, Bronx, New York
| | - Latchman Somenarain
- 1 Department of Biological Sciences, Bronx Community College, The City University of New York, Bronx, New York
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Valentine GC, Seferovic MD, Fowler SW, Major AM, Gorchakov R, Berry R, Swennes AG, Murray KO, Suter MA, Aagaard KM. Timing of gestational exposure to Zika virus is associated with postnatal growth restriction in a murine model. Am J Obstet Gynecol 2018; 219:403.e1-403.e9. [PMID: 29902449 DOI: 10.1016/j.ajog.2018.06.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2018] [Revised: 05/30/2018] [Accepted: 06/05/2018] [Indexed: 01/08/2023]
Abstract
BACKGROUND Vertical transmission of Zika virus leads to infection of neuroprogenitor cells and destruction of brain parenchyma. Recent evidence suggests that the timing of infection as well as host factors may affect vertical transmission. As a result, congenital Zika virus infection may only become clinically apparent in the postnatal period. OBJECTIVE We sought to develop an outbred mouse model of Zika virus vertical transmission to determine if the timing of gestational Zika virus exposure yields phenotypic differences at birth and through adolescence. We hypothesized that later gestational inoculations would only become apparent in adolescence. STUDY DESIGN To better recapitulate human exposures, timed pregnant Swiss-Webster dams (n = 15) were subcutaneously inoculated with 1 × 104 plaque-forming units of first passage contemporary Zika virus HN16 strain or a mock injection on embryonic day 4, 8, or 12 with bioactive antiinterferon alpha receptor antibody administered in days preceding and proceeding inoculation. The antibody was given to prevent the robust type I interferon signaling cascade that make mice inherently resistant to Zika virus infection. At birth and adolescence (6 weeks of age) offspring were assessed for growth, brain weight, and biparietal head diameters, and Zika virus viral levels by reverse transcription-polymerase chain reaction or in situ hybridization. RESULTS Pups of Zika virus-infected dams infected at embryonic days 4 and 8 but not 12 were growth restricted (P < .003). Brain weights were significantly smaller at birth (P = .01) for embryonic day 8 Zika virus-exposed offspring. At 6 weeks of age, biparietal diameters were smaller for all Zika virus-exposed males and females (P < .05), with embryonic day 8-exposed males smallest by biparietal diameter and growth-restriction measurements (weight >2 SD, P = .0007). All pups and adolescent mice were assessed for Zika virus infection by reverse transcription-polymerase chain reaction. Analysis of all underweight pups reveled 1 to be positive for neuronal Zika virus infection by in situ hybridization, while a second moribund animal was diffusely positive at 8 days of age by Zika virus infectivity throughout the brain, kidneys, and intestine. CONCLUSION These findings demonstrate that postnatal effects of infection occurring at single time points continue to be detrimental to offspring in the postnatal period in a subset of littermates and subject to a window of gestational susceptibility coinciding with placentation. This model recapitulates frequently encountered clinical scenarios in nonendemic regions, including the majority of the United States, where travel-related exposure occurs in short and well-defined windows of gestation. Our low rate of infection and relatively rare evidence of congenital Zika syndrome parallels human population-based data.
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Abstract
Glioblastoma (GBM) is the deadliest type of brain tumor, and glioma stem cells (GSCs) contribute to tumor recurrence and therapeutic resistance. Thus, an oncolytic virus targeting GSCs may be useful for improving GBM treatment. Because Zika virus (ZIKV) has an oncolytic tropism for infecting GSCs, we investigated the safety and efficacy of a live attenuated ZIKV vaccine candidate (ZIKV-LAV) for the treatment of human GBM in a GSC-derived orthotopic model. Intracerebral injection of ZIKV-LAV into mice caused no neurological symptoms or behavioral abnormalities. The neurovirulence of ZIKV-LAV was more attenuated than that of the licensed Japanese encephalitis virus LAV 14-14-2, underlining the superior safety of ZIKV-LAV for potential GBM treatment. Importantly, ZIKV-LAV significantly reduced intracerebral tumor growth and prolonged animal survival by selectively killing GSCs within the tumor. Mechanistically, ZIKV infection elicited antiviral immunity, inflammation, and GSC apoptosis. Together, these results further support the clinical development of ZIKV-LAV for GBM therapy.IMPORTANCE Glioblastoma (GBM), the deadliest type of brain tumor, is currently incurable because of its high recurrence rate after traditional treatments, including surgery to remove the main part of the tumor and radiation and chemotherapy to target residual tumor cells. These treatments fail mainly due to the presence of a cell subpopulation called glioma stem cells (GSCs), which are resistant to radiation and chemotherapy and capable of self-renewal and tumorigenicity. Because Zika virus (ZIKV) has an oncolytic tropism for infecting GSCs, we tested a live attenuated ZIKV vaccine candidate (ZIKV-LAV) for the treatment of human GBM in a human GSC-derived orthotopic model. Our results showed that ZIKV-LAV retained good efficacy against glioblastoma by selectively killing GSCs within the tumor. In addition, ZIKV-LAV exhibited an excellent safety profile upon intracerebral injection into the treated animals. The good balance between the safety of ZIKV-LAV and its efficacy against human GSCs suggests that it is a potential candidate for combination with the current treatment regimen for GBM therapy.
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Beaver JT, Lelutiu N, Habib R, Skountzou I. Evolution of Two Major Zika Virus Lineages: Implications for Pathology, Immune Response, and Vaccine Development. Front Immunol 2018; 9:1640. [PMID: 30072993 PMCID: PMC6058022 DOI: 10.3389/fimmu.2018.01640] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 07/03/2018] [Indexed: 12/13/2022] Open
Abstract
Zika virus (ZIKV) became a public health emergency of global concern in 2015 due to its rapid expansion from French Polynesia to Brazil, spreading quickly throughout the Americas. Its unexpected correlation to neurological impairments and defects, now known as congenital Zika syndrome, brought on an urgency to characterize the pathology and develop safe, effective vaccines. ZIKV genetic analyses have identified two major lineages, Asian and African, which have undergone substantial changes during the past 50 years. Although ZIKV infections have been circulating throughout Africa and Asia for the later part of the 20th century, the symptoms were mild and not associated with serious pathology until now. ZIKV evolution also took the form of novel modes of transmission, including maternal-fetal transmission, sexual transmission, and transmission through the eye. The African and Asian lineages have demonstrated differential pathogenesis and molecular responses in vitro and in vivo. The limited number of human infections prior to the 21st century restricted ZIKV research to in vitro studies, but current animal studies utilize mice deficient in type I interferon (IFN) signaling in order to invoke enhanced viral pathogenesis. This review examines ZIKV strain differences from an evolutionary perspective, discussing how these differentially impact pathogenesis via host immune responses that modulate IFN signaling, and how these differential effects dictate the future of ZIKV vaccine candidates.
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Affiliation(s)
| | | | | | - Ioanna Skountzou
- Department of Microbiology and Immunology, Emory Vaccine Center, Emory University School of Medicine, Atlanta, GA, United States
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17
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Abstract
The spread of Zika virus to the Americas was accompanied by surge in the number of infants with CNS abnormalities leading to a declaration of a health emergency by the WHO. This was accompanied by significant responses from governmental health agencies in the United States and Europe that resulted in significant new information described in the natural history of this perinatal infection in a very short period of time. Although much has been learned about Zika virus infection during pregnancy, limitations of current diagnostics and the challenges for accurate serologic diagnosis of acute Zika virus infection has restricted our understanding of the natural history of this perinatal infection to infants born to women with clinical disease during pregnancy and to Zika exposed infants with obvious clinical stigmata of disease. Thus, the spectrum of disease in infants exposed to Zika virus during pregnancy remains to be defined. In contrast, observations in informative animal models of Zika virus infections have provided rational pathways for vaccine development and existing antiviral drug development programs for other flaviviruses have resulted in accelerated development for potential antiviral therapies. This brief review will highlight some of the current concepts of the natural history of Zika virus during pregnancy.
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Affiliation(s)
- William J Britt
- Department of Pediatrics, University of Alabama School of Medicine, Childrens Hospital Harbor Bldg 160, Birmingham, AL 35233.
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Sanz Cortes M, Rivera AM, Yepez M, Guimaraes CV, Diaz Yunes I, Zarutskie A, Davila I, Shetty A, Mahadev A, Serrano SM, Castillo N, Lee W, Valentine G, Belfort M, Parra G, Mohila C, Aagaard K, Parra Saavedra M. Clinical assessment and brain findings in a cohort of mothers, fetuses and infants infected with ZIKA virus. Am J Obstet Gynecol 2018; 218:440.e1-440.e36. [PMID: 29353032 DOI: 10.1016/j.ajog.2018.01.012] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 01/04/2018] [Accepted: 01/08/2018] [Indexed: 10/18/2022]
Abstract
BACKGROUND Congenital Zika virus (ZIKV) infection can be detected in both the presence and absence of microcephaly and manifests as a number of signs and symptoms that are detected clinically and by neuroimaging. However, to date, qualitative and quantitative measures for the purpose of diagnosis and prognosis are limited. OBJECTIVES Main objectives of this study conducted on fetuses and infants with confirmed congenital Zika virus infection and detected brain abnormalities were (1) to assess the prevalence of microcephaly and the frequency of the anomalies that include a detailed description based on ultrasound and magnetic resonance imaging in fetuses and ultrasound, magnetic resonance imaging, and computed tomography imaging postnatally, (2) to provide quantitative measures of fetal and infant brain findings by magnetic resonance imaging with the use of volumetric analyses and diffusion-weighted imaging, and (3) to obtain additional information from placental and fetal histopathologic assessments and postnatal clinical evaluations. STUDY DESIGN This is a longitudinal cohort study of Zika virus-infected pregnancies from a single institution in Colombia. Clinical and imaging findings of patients with laboratory-confirmed Zika virus infection and fetal brain anomalies were the focus of this study. Patients underwent monthly fetal ultrasound scans, neurosonography, and a fetal magnetic resonance imaging. Postnatally, infant brain assessment was offered by the use of ultrasound imaging, magnetic resonance imaging, and/or computed tomography. Fetal head circumference measurements were compared with different reference ranges with <2 or <3 standard deviations below the mean for the diagnosis of microcephaly. Fetal and infant magnetic resonance imaging images were processed to obtain a quantitative brain volumetric assessment. Diffusion weighted imaging sequences were processed to assess brain microstructure. Anthropometric, neurologic, auditory, and visual assessments were performed postnatally. Histopathologic assessment was included if patients opted for pregnancy termination. RESULTS All women (n=214) had been referred for Zika virus symptoms during pregnancy that affected themselves or their partners or if fetal anomalies that are compatible with congenital Zika virus syndrome were detected. A total of 12 pregnant patients with laboratory confirmation of Zika virus infection were diagnosed with fetal brain malformations. Most common findings that were assessed by prenatal and postnatal imaging were brain volume loss (92%), calcifications (92%), callosal anomalies (100%), cortical malformations (89%), and ventriculomegaly (92%). Results from fetal brain volumetric assessment by magnetic resonance imaging showed that 1 of the most common findings associated with microcephaly was reduced supratentorial brain parenchyma and increased subarachnoid cerebrospinal fluid. Diffusion weighted imaging analyses of apparent diffusion coefficient values showed microstructural changes. Microcephaly was present in 33.3-58.3% of the cases at referral and was present at delivery in 55.6-77.8% of cases. At birth, most of the affected neonates (55.6-77.8%) had head circumference measurements >3 standard deviations below the mean. Postnatal imaging studies confirmed brain malformations that were detected prenatally. Auditory screening results were normal in 2 cases that were assessed. Visual screening showed different anomalies in 2 of the 3 cases that were examined. Pathologic results that were obtained from 2 of the 3 cases who opted for termination showed similar signs of abnormalities in the central nervous system and placental analyses, including brain microcalcifications. CONCLUSION Congenital microcephaly is not an optimal screening method for congenital Zika virus syndrome, because it may not accompany other evident and preceding brain findings; microcephaly could be an endpoint of the disease that results from progressive changes that are related to brain volume loss. Long-term studies are needed to understand the clinical and developmental relevance of these findings.
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Abstract
PURPOSE OF REVIEW Zika virus (ZIKV), a mosquito-borne flavivirus, has gained recognition over the past few years as an important new cause of congenital infection. As a result, it is critical that pediatricians understand its epidemiology, clinical presentation, clinical sequelae, and management. RECENT FINDINGS The recent ZIKV epidemiology, clinical presentation of acute infection in children and complications, perinatal infection, and congenital infection will be summarized in this ZIKV review. This will be followed by a brief summary on ZIKV diagnosis, management, treatment, and prevention. SUMMARY The field of clinical research in ZIKV has rapidly evolved over recent months. It is critical that pediatricians continue to stay up-to-date with the continuously evolving understanding of the clinical aspects of ZIKV to ensure optimal identification and management of affected infants and children. Given the recent changes in Centers for Disease Control and Prevention guidelines to limit screening of asymptomatic pregnant women in the United States with possible ZIKV exposure, comprehensive ZIKV clinical knowledge becomes even more crucial.
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Affiliation(s)
- Kristina Adachi
- David Geffen UCLA School of Medicine, Los Angeles, CA 90095-1406, U.S
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Carrillo-Hernández MY, Ruiz-Saenz J, Villamizar LJ, Gómez-Rangel SY, Martínez-Gutierrez M. Co-circulation and simultaneous co-infection of dengue, chikungunya, and zika viruses in patients with febrile syndrome at the Colombian-Venezuelan border. BMC Infect Dis 2018; 18:61. [PMID: 29382300 PMCID: PMC5791178 DOI: 10.1186/s12879-018-2976-1] [Citation(s) in RCA: 114] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Accepted: 01/23/2018] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND In Colombia, the dengue virus (DENV) has been endemic for decades, and with the recent entry of the chikungunya virus (CHIKV) (2014) and the Zika virus (ZIKV) (2015), health systems are overloaded because the diagnosis of these three diseases is based on clinical symptoms, and the three diseases share a symptomatology of febrile syndrome. Thus, the objective of this study was to use molecular methods to identify their co-circulation as well as the prevalence of co-infections, in a cohort of patients at the Colombian-Venezuelan border. METHODS A total of 157 serum samples from patients with febrile syndrome consistent with DENV were collected after informed consent and processed for the identification of DENV (conventional PCR and real-time PCR), CHIKV (conventional PCR), and ZIKV (real-time PCR). DENV-positive samples were serotyped, and some of those positive for DENV and CHIKV were sequenced. RESULTS Eighty-two patients were positive for one or more viruses: 33 (21.02%) for DENV, 47 (29.94%) for CHIKV, and 29 (18.47%) for ZIKV. The mean age range of the infected population was statistically higher in the patients infected with ZIKV (29.72 years) than in those infected with DENV or CHIKV (21.09 years). Both co-circulation and co-infection of these three viruses was found. The prevalence of DENV/CHIKV, DENV/ZIKV, and CHIKV/ZIKV co-infection was 7.64%, 6.37%, and 5.10%, with attack rates of 14.90, 12.42, and 9.93 cases per 100,000 inhabitants, respectively. Furthermore, three patients were found to be co-infected with all three viruses (prevalence of 1.91%), with an attack rate of 4.96 cases per 100,000 inhabitants. CONCLUSION Our results demonstrate the simultaneous co-circulation of DENV, CHIKV, ZIKV and their co-infections at the Colombian-Venezuelan border. Moreover, it is necessary to improve the differential diagnosis in patients with acute febrile syndrome and to study the possible consequences of this epidemiological overview of the clinical outcomes of these diseases in endemic regions.
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Affiliation(s)
- Marlen Yelitza Carrillo-Hernández
- Grupo de Investigación en Ciencias Animales-GRICA, Universidad Cooperativa de Colombia, Calle 30A #, 33-51, Bucaramanga, Colombia.,Universidad de Santander UDES, Facultad de Ciencias de la Salud, Programa de Bacteriología y Laboratorio clínico, Grupo de investigación en manejo clínico - CLINIUDES, Bucaramanga, Colombia.,Maestría en Investigación en Enfermedades Infecciosas, Universidad de Santander, Bucaramanga, Colombia.,Doctorado en Ciencias Básicas Biomedicas, Universidad de Antioquia, Medellin, Colombia
| | - Julian Ruiz-Saenz
- Grupo de Investigación en Ciencias Animales-GRICA, Universidad Cooperativa de Colombia, Calle 30A #, 33-51, Bucaramanga, Colombia
| | - Lucy Jaimes Villamizar
- Laboratorio Clínico, E.S.E. Jorge Cristo Sahium Hospital, Norte de Santander, Cúcuta, Colombia
| | - Sergio Yebrail Gómez-Rangel
- Universidad de Santander UDES, Facultad de Ciencias de la Salud, Programa de Bacteriología y Laboratorio clínico, Grupo de investigación en manejo clínico - CLINIUDES, Bucaramanga, Colombia
| | - Marlen Martínez-Gutierrez
- Grupo de Investigación en Ciencias Animales-GRICA, Universidad Cooperativa de Colombia, Calle 30A #, 33-51, Bucaramanga, Colombia.
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Felix A, Hallet E, Favre A, Kom-Tchameni R, Defo A, Fléchelles O, Rosenthal JM, Douine M, Nacher M, Elenga N. Cerebral injuries associated with Zika virus in utero exposure in children without birth defects in French Guiana: Case report. Medicine (Baltimore) 2017; 96:e9178. [PMID: 29390455 PMCID: PMC5758157 DOI: 10.1097/md.0000000000009178] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
RATIONALE A major epidemic of Zika virus (ZIKV) infection occurred in French Guiana and West Indies. French national epidemiological surveillance estimated that 1650 pregnant women contracted the ZIKV during epidemic period from January 2016 to October 2016 in French Guiana. PATIENT CONCERNS ZIKV infection during pregnancy is a cause of microcephaly and birth defects. DIAGNOSES In this report, we describe 2 children with proven in utero ZIKV exposure. Their mothers were both symptomatic and ZIKV infection occurred early in pregnancy. Ultrasonography monitoring in utero did not show any abnormality for both patient. They were born at full-term, healthy, without any birth defects and no sign of congenital ZIKV infection. INTERVENTIONS ZIKV was neither found on placenta fragments nor children blood and urine at birth. Their neurodevelopment outcomes in early-life fitted the expectations. As recommended in national guidelines, we performed cerebral MRIs at 2 months old, showing severe brain abnormalities, especially of white matter areas. After a large screening, we did not find any differential diagnosis for their brain lesions. OUTCOMES We concluded it was due to their in utero ZIKV exposure. LESSONS In this report, pathogenicity of ZIKV may involve mother's immunological response or metabolic disorder during the infection.
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Affiliation(s)
- Arthur Felix
- Department of Pediatrics, Andrée Rosemon Hospital
| | - Edouard Hallet
- Centre d’Investigation Clinique Antilles Guyane CIC INSERM 1424
| | - Anne Favre
- Department of Neonatal Pediatrics and Intensive Care, Andrée Rosemon Hospital, Cayenne, French Guiana
| | | | - Antoine Defo
- Department of Pediatrics, Andrée Rosemon Hospital
| | - Olivier Fléchelles
- Pediatric and Neonatal Intensive Care Unit, MFME Hospital, Fort de France, Martinique
| | - Jean-Marc Rosenthal
- Neonatal Intensive Care, Pointe à Pitre Hospital, Pointe à Pitre, Guadeloupe, France
| | - Maylis Douine
- Centre d’Investigation Clinique Antilles Guyane CIC INSERM 1424
| | - Mathieu Nacher
- Centre d’Investigation Clinique Antilles Guyane CIC INSERM 1424
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22
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Singh MV, Weber EA, Singh VB, Stirpe NE, Maggirwar SB. Preventive and therapeutic challenges in combating Zika virus infection: are we getting any closer? J Neurovirol 2017; 23:347-357. [PMID: 28116673 PMCID: PMC5440476 DOI: 10.1007/s13365-017-0513-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Accepted: 01/10/2017] [Indexed: 01/26/2023]
Abstract
The neuroteratogenic nature of Zika Virus (ZIKV) infection has converted what would have been a tropical disease into a global threat. Zika is transmitted vertically via infected placental cells especially in the first and second trimesters. In the developing central nervous system (CNS), ZIKV can infect and induce apoptosis of neural progenitor cells subsequently causing microcephaly as well as other neuronal complications in infants. Its ability to infect multiple cell types (placental, dermal, and neural) and increased environmental stability as compared to other flaviviruses (FVs) has broadened the transmission routes for ZIKV infection from vector-mediated to transmitted via body fluids. To further complicate the matters, it is genetically similar (about 40%) with the four serotypes of dengue virus (DENV), so much so that it can almost be called a fifth DENV serotype. This homology poses the risk of causing cross-reactive immune responses and subsequent antibody-dependent enhancement (ADE) of infection in case of secondary infections or for immunized individuals. All of these factors complicate the development of a single preventive vaccine candidate or a pharmacological intervention that will completely eliminate or cure ZIKV infection. We discuss all of these factors in detail in this review and conclude that a combinatorial approach including immunization and treatment might prove to be the winning strategy.
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Affiliation(s)
- Meera V Singh
- Department of Microbiology and Immunology, University of Rochester School of Medicine and Dentistry, 601 Elmwood Avenue, Rochester, NY, 14642, USA.
| | - Emily A Weber
- Department of Microbiology and Immunology, University of Rochester School of Medicine and Dentistry, 601 Elmwood Avenue, Rochester, NY, 14642, USA
| | - Vir B Singh
- Department of Microbiology and Immunology, University of Rochester School of Medicine and Dentistry, 601 Elmwood Avenue, Rochester, NY, 14642, USA
| | - Nicole E Stirpe
- Department of Microbiology and Immunology, University of Rochester School of Medicine and Dentistry, 601 Elmwood Avenue, Rochester, NY, 14642, USA
| | - Sanjay B Maggirwar
- Department of Microbiology and Immunology, University of Rochester School of Medicine and Dentistry, 601 Elmwood Avenue, Rochester, NY, 14642, USA
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Rao R, Gaw SL, Han CS, Platt LD, Silverman NS. Zika Risk and Pregnancy in Clinical Practice: Ongoing Experience as the Outbreak Evolves. Obstet Gynecol 2017; 129:1098-1103. [PMID: 28486369 PMCID: PMC5578406 DOI: 10.1097/aog.0000000000002049] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To describe a single U.S. perinatal center's ongoing experience with evaluating pregnant patients with potential exposure to Zika virus infection. METHODS This is an institutional review board-approved longitudinal observational study from January to August 2016 from a single perinatal referral center. Patients who had traveled to or had sexual contact with a person who traveled to a region with documented local Zika virus transmission were included in the study. The aim of the study was to identify the rate of confirmed infection among pregnant women referred to our center with established risk factors for Zika virus acquisition. We also sought to characterize travel patterns that constituted risk, to identify rates of symptoms suggesting infection, and to potentially describe findings suggestive of congenital Zika virus infection in prenatal ultrasound evaluations. RESULTS We evaluated 185 pregnant women with potential Zika virus exposure. Testing was offered in accordance with the version of the Centers for Disease Control and Prevention guidelines in place at the time of the consultation visit. Geographic exposure data showed Mexico (44%), the Caribbean (17%), North America (16%), South America (13%), and Central America (9%) to be the most common areas in which potential exposure occurred. One hundred twenty-three (67%) patients reported insect bites and 19 (10%) patients reported symptoms. Overall, five (3% of all) patients had prenatal ultrasound findings suggestive of possible fetal Zika virus infection; all their Zika virus test results returned negative. These findings included microcephaly, echogenic intracardiac foci, and ventricular calcifications. Of the 153 Zika virus screening tests ordered, eight (5%) immunoglobulin M results returned positive or equivocal with only one positive through confirmatory testing. Overall, 1 of 185 (0.5%) of all those consulted and 1 of 153 (0.7%) of those tested had a confirmed Zika virus infection with no confirmed fetal or neonatal infections. CONCLUSION We identified low rates of confirmed maternal Zika virus infection in our cohort, but the number of patients described here demonstrates the magnitude of concern existing among both patients and physicians regarding possible perinatal Zika virus infection. It also underscores the need for health care providers to be prepared to answer questions, explain laboratory and ultrasound results, and describe testing options for concerned patients and their families.
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Affiliation(s)
- Rashmi Rao
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, David Geffen- School of Medicine at UCLA, Los Angeles, CA 90095
| | - Stephanie L. Gaw
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, University of California, San Francisco
| | - Christina S. Han
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, David Geffen- School of Medicine at UCLA, Los Angeles, CA 90095
| | - Lawrence D. Platt
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, David Geffen- School of Medicine at UCLA, Los Angeles, CA 90095
| | - Neil S. Silverman
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, David Geffen- School of Medicine at UCLA, Los Angeles, CA 90095
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Boigard H, Alimova A, Martin GR, Katz A, Gottlieb P, Galarza JM. Zika virus-like particle (VLP) based vaccine. PLoS Negl Trop Dis 2017; 11:e0005608. [PMID: 28481898 PMCID: PMC5436897 DOI: 10.1371/journal.pntd.0005608] [Citation(s) in RCA: 110] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Revised: 05/18/2017] [Accepted: 04/28/2017] [Indexed: 11/19/2022] Open
Abstract
The newly emerged mosquito-borne Zika virus poses a major public challenge due to its ability to cause significant birth defects and neurological disorders. The impact of sexual transmission is unclear but raises further concerns about virus dissemination. No specific treatment or vaccine is currently available, thus the development of a safe and effective vaccine is paramount. Here we describe a novel strategy to assemble Zika virus-like particles (VLPs) by co-expressing the structural (CprME) and non-structural (NS2B/NS3) proteins, and demonstrate their effectiveness as vaccines. VLPs are produced in a suspension culture of mammalian cells and self-assembled into particles closely resembling Zika viruses as shown by electron microscopy studies. We tested various VLP vaccines and compared them to analogous compositions of an inactivated Zika virus (In-ZIKV) used as a reference. VLP immunizations elicited high titers of antibodies, as did the In-ZIKV controls. However, in mice the VLP vaccine stimulated significantly higher virus neutralizing antibody titers than comparable formulations of the In-ZIKV vaccine. The serum neutralizing activity elicited by the VLP vaccine was enhanced using a higher VLP dose and with the addition of an adjuvant, reaching neutralizing titers greater than those detected in the serum of a patient who recovered from a Zika infection in Brazil in 2015. Discrepancies in neutralization levels between the VLP vaccine and the In-ZIKV suggest that chemical inactivation has deleterious effects on neutralizing epitopes within the E protein. This along with the inability of a VLP vaccine to cause infection makes it a preferable candidate for vaccine development.
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MESH Headings
- Adjuvants, Immunologic/administration & dosage
- Animals
- Antibodies, Neutralizing/blood
- Antibodies, Viral/blood
- Female
- Mice, Inbred BALB C
- Microscopy, Electron, Transmission
- Vaccines, Virus-Like Particle/administration & dosage
- Vaccines, Virus-Like Particle/genetics
- Vaccines, Virus-Like Particle/immunology
- Vaccines, Virus-Like Particle/ultrastructure
- Viral Vaccines/administration & dosage
- Viral Vaccines/genetics
- Viral Vaccines/immunology
- Zika Virus/immunology
- Zika Virus Infection/immunology
- Zika Virus Infection/prevention & control
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Affiliation(s)
- Hélène Boigard
- TechnoVax, Inc., Tarrytown, NY, United States of America
| | - Alexandra Alimova
- Department of Molecular, Cellular and Biomedical Sciences, City University of New York, School of Medicine, New York City, NY, United States of America
| | | | - Al Katz
- Physics Department, City College of New York, New York City, NY, United States of America
| | - Paul Gottlieb
- Department of Molecular, Cellular and Biomedical Sciences, City University of New York, School of Medicine, New York City, NY, United States of America
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25
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Abstract
Zika virus (ZIKV), a mosquito-borne flavivirus, is the latest global health concern. Transmission is mainly via Aedes mosquitoes and the infection can be diagnosed on molecular or serologic testings. It typically causes a mild self-remitting illness of low-grade fever, maculopapular rash, and myalgia, but when severe, it is associated with neurological deficits and congenital structural defects. Ocular manifestations are usually mild like nonpurulent conjunctivitis in adults, though it may be linked to uveitis, maculopathy, and hypertensive iridocyclitis. Ocular signs seem to be more significant in congenital ZIKV-macular pigment mottling, neuroretinal atrophy with macular involvement, iris coloboma, and changes in retinal vasculature are noted in infants with infected mothers. Risk factors include ZIKV infection in first trimester and smaller cephalic diameter at birth. Hence, ophthalmic examination in newborns is now recommended. Currently, prevention and active surveillance are integral as there is no known vaccine, and treatment is only symptomatic.
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Affiliation(s)
- Rupesh Agrawal
- a National Healthcare Group Eye Institute, Tan Tock Seng Hospital , Singapore.,b Yong Loo Lin School of Medicine, National University of Singapore , Singapore.,c Department of Preclinical Research, Singapore Eye Research Institute , Singapore
| | - Hnin Hnin Oo
- b Yong Loo Lin School of Medicine, National University of Singapore , Singapore
| | - Praveen Kumar Balne
- c Department of Preclinical Research, Singapore Eye Research Institute , Singapore
| | - Lisa Ng
- d Singapore Immunology Network (SigN), A*STAR , Singapore
| | - Louis Tong
- b Yong Loo Lin School of Medicine, National University of Singapore , Singapore.,c Department of Preclinical Research, Singapore Eye Research Institute , Singapore.,e Department of Ocular Surface Inflammation, Singapore National Eye Centre , Singapore
| | - Yee Sin Leo
- f Institute of Infectious Diseases and Epidemiology (IIDE), Tan Tock Seng Hospital , Singapore
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26
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Moore CA, Staples JE, Dobyns WB, Pessoa A, Ventura CV, da Fonseca EB, Ribeiro EM, Ventura LO, Neto NN, Arena JF, Rasmussen SA. Characterizing the Pattern of Anomalies in Congenital Zika Syndrome for Pediatric Clinicians. JAMA Pediatr 2017; 171:288-295. [PMID: 27812690 PMCID: PMC5561417 DOI: 10.1001/jamapediatrics.2016.3982] [Citation(s) in RCA: 630] [Impact Index Per Article: 90.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Importance Zika virus infection can be prenatally passed from a pregnant woman to her fetus. There is sufficient evidence to conclude that intrauterine Zika virus infection is a cause of microcephaly and serious brain anomalies, but the full spectrum of anomalies has not been delineated. To inform pediatric clinicians who may be called on to evaluate and treat affected infants and children, we review the most recent evidence to better characterize congenital Zika syndrome. Observations We reviewed published reports of congenital anomalies occurring in fetuses or infants with presumed or laboratory-confirmed intrauterine Zika virus infection. We conducted a comprehensive search of the English literature using Medline and EMBASE for Zika from inception through September 30, 2016. Congenital anomalies were considered in the context of the presumed pathogenetic mechanism related to the neurotropic properties of the virus. We conclude that congenital Zika syndrome is a recognizable pattern of structural anomalies and functional disabilities secondary to central and, perhaps, peripheral nervous system damage. Although many of the components of this syndrome, such as cognitive, sensory, and motor disabilities, are shared by other congenital infections, there are 5 features that are rarely seen with other congenital infections or are unique to congenital Zika virus infection: (1) severe microcephaly with partially collapsed skull; (2) thin cerebral cortices with subcortical calcifications; (3) macular scarring and focal pigmentary retinal mottling; (4) congenital contractures; and (5) marked early hypertonia and symptoms of extrapyramidal involvement. Conclusions and Relevance Although the full spectrum of adverse reproductive outcomes caused by Zika virus infection is not yet determined, a distinctive phenotype-the congenital Zika syndrome-has emerged. Recognition of this phenotype by clinicians for infants and children can help ensure appropriate etiologic evaluation and comprehensive clinical investigation to define the range of anomalies in an affected infant as well as determine essential follow-up and ongoing care.
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Affiliation(s)
- Cynthia A. Moore
- National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention, Atlanta, GA
| | - J. Erin Staples
- National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Fort Collins, CO
| | - William B. Dobyns
- University of Washington and Seattle Children’s Research Institute, Seattle, WA
| | - André Pessoa
- Hospital Infantil Albert Sabin, Fortaleza, Ceará, Brazil
| | - Camila V. Ventura
- Altino Ventura Foundation, Recife, Pernambuco, Brazil
- HOPE Eye Hospital, Recife, Pernambuco, Brazil
- Federal University of São Paulo (UNIFESP), São Paulo, São Paulo, Brazil
| | - Eduardo Borges da Fonseca
- NOVA Diagnóstico Por Imagem, João Pessoa, Paraíba, Brazil
- Federal University of Paraiba (UFPB), João Pessoa, Paraíba, Brazil
| | - Erlane Marques Ribeiro
- Hospital Infantil Albert Sabin, Fortaleza, Ceará, Brazil
- Estacio Faculdade de Medicina de Juazeiro do Norte, Juazeiro do Norte, Ceará, Brazil
| | - Liana O. Ventura
- Altino Ventura Foundation, Recife, Pernambuco, Brazil
- HOPE Eye Hospital, Recife, Pernambuco, Brazil
| | | | | | - Sonja A. Rasmussen
- Center for Surveillance, Epidemiology and Laboratory Services, Centers for Disease Control and Prevention, Atlanta, GA
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27
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Pinazo-Durán MD, Silva ED. Zika virus. A teratogenic agent for the eyes. ACTA ACUST UNITED AC 2017; 92:51-53. [PMID: 28073577 DOI: 10.1016/j.oftal.2016.11.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2016] [Accepted: 11/21/2016] [Indexed: 11/18/2022]
Affiliation(s)
- M D Pinazo-Durán
- Unidad de Investigación Oftalmológica Santiago Grisolía (FISABIO). Unidad de Oftalmobiología Celular y Molecular, Departamento de Cirugía, Facultad de Medicina y Odontología, Universidad de Valencia, Valencia, España; Nodo de Valencia 12/0034/0008, Red Temática de Investigación Cooperativa del Instituto de Salud Carlos III (OFTARED).
| | - E D Silva
- IBILI, Facultad de Medicina, Universidad de Coimbra, Coimbra, Portugal; Departamento de Oftalmología, Centro Hospitalario Lisboa Norte (CHLN), Lisboa, Portugal; Centro Quirúrgico de Coimbra, Coimbra, Portugal
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28
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The larvicide pyriproxyfen blamed during the Zika virus outbreak does not cause microcephaly in zebrafish embryos. Sci Rep 2017; 7:40067. [PMID: 28051181 PMCID: PMC5209666 DOI: 10.1038/srep40067] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Accepted: 11/30/2016] [Indexed: 02/04/2023] Open
Abstract
Although the zika virus (ZIKV) has now been strongly correlated with emerging cases of microcephaly in the Americas, suspicions have been raised regarding the use of pyriproxyfen, a larvicide that prevents mosquito development, in drinking water. The effects of this compound on neurodevelopment have not yet been addressed specifically in vertebrates. As a result, we aimed at addressing the effects, if any, of pyriproxyfen on neurodevelopment in the zebrafish embryo as a vertebrate model. Using zebrafish transgenic lines expressing GFP in different cell populations (elavl3 in newborn neurons, gfap and nestin in neural stem cells), we focused on the analysis of whole embryonic brain volume after confocal 3D-reconstruction and the quantification of purified neural stem cells during early neurodevelopment by FACS-cell sorting from whole in vivo embryos. Interestingly, though lethal at very high doses, pyriproxyfen did not cause brain malformation nor any significant changes in the number of observed stem cells in the developing central nervous system. Our data indicate that pyriproxyfen does not affect central nervous system development in zebrafish, suggesting that this larvicide on its own, may not be correlated with the increase in microcephaly cases reported recently.
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29
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Asadi-Pooya AA. Zika virus-associated seizures. Seizure 2016; 43:13. [PMID: 27788398 DOI: 10.1016/j.seizure.2016.10.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Accepted: 10/13/2016] [Indexed: 11/26/2022] Open
Affiliation(s)
- Ali A Asadi-Pooya
- Jefferson Comprehensive Epilepsy Center, Department of Neurology, Thomas Jefferson University, Philadelphia, USA; Neurosciences Research Center, Shiraz Medical School, Shiraz University of Medical Sciences, Shiraz, Iran.
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