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https://www.readbyqxmd.com/read/28934352/global-reaction-to-the-recent-outbreaks-of-zika-virus-insights-from-a-big-data-analysis
#1
Nicola Luigi Bragazzi, Cristiano Alicino, Cecilia Trucchi, Chiara Paganino, Ilaria Barberis, Mariano Martini, Laura Sticchi, Eugen Trinka, Francesco Brigo, Filippo Ansaldi, Giancarlo Icardi, Andrea Orsi
OBJECTIVE: The recent spreading of Zika virus represents an emerging global health threat. As such, it is attracting public interest worldwide, generating a great amount of related Internet searches and social media interactions. The aim of this research was to understand Zika-related digital behavior throughout the epidemic spreading and to assess its consistence with real-world epidemiological data, using a behavioral informatics and analytics approach. METHODS: In this study, the global web-interest and reaction to the recently occurred outbreaks of the Zika Virus were analyzed in terms of tweets and Google Trends (GT), Google News, YouTube, and Wikipedia search queries...
2017: PloS One
https://www.readbyqxmd.com/read/28932235/zika-virus-congenital-syndrome-experimental-models-and-clinical-aspects
#2
REVIEW
Carolina Manganeli Polonio, Carla Longo de Freitas, Nagela Ghabdan Zanluqui, Jean Pierre Schatzmann Peron
Viral infections have long been the cause of severe diseases to humans, increasing morbidity and mortality rates worldwide, either in rich or poor countries. Yellow fever virus, H1N1 virus, HIV, dengue virus, hepatitis B and C are well known threats to human health, being responsible for many million deaths annually, associated to a huge economic and social cost. In this context, a recently introduced flavivirus in South America, called Zika virus (ZIKV), led the WHO to declare in February 1st 2016 a warning on Public Health Emergency of International Concern (PHEIC)...
2017: Journal of Venomous Animals and Toxins Including Tropical Diseases
https://www.readbyqxmd.com/read/28931684/zika-virus-encoding-non-glycosylated-envelope-protein-is-attenuated-and-defective-in-neuroinvasion
#3
Arun S Annamalai, Aryamav Pattnaik, Bikash R Sahoo, Ezhumalai Muthukrishnan, Sathish Kumar Natarajan, David Steffen, Hiep L X Vu, Gustavo Delhon, Fernando A Osorio, Thomas M Petro, Shi-Hua Xiang, Asit K Pattnaik
Zika virus (ZIKV), a mosquito-transmitted flavivirus, responsible for sporadic outbreaks of mild and febrile illness in Africa and Asia, re-emerged in the last decade causing serious human diseases including microcephaly, congenital malformations, and Guillain-Barré syndrome. Although genomic and phylogenetic analyses suggest that genetic evolution may have led to enhanced virulence of ZIKV, experimental evidence supporting the role of specific genetic changes in virulence is currently outstanding. One sequence motif, VNDT, containing an N-linked glycosylation site in the envelope (E) protein, is polymorphic, being absent in many of the African isolates while present in all isolates from the recent outbreaks...
September 20, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28929534/emerging-arboviruses-in-rio-grande-do-sul-brazil-chikungunya-and-zika-outbreaks-2014-2016
#4
Tatiana Schäffer Gregianini, Tani Ranieri, Cátia Favreto, Zenaida Marion Alves Nunes, Gabriela Luchiari Tumioto Giannini, Nara Druck Sanberg, Marilda Tereza Mar da Rosa, Ana Beatriz Gorini da Veiga
QUESTIONS INVESTIGATED: The recent emergence of arboviruses such as Chikungunya virus (CHIKV) and Zika virus (ZIKV) in Brazil has posed a threat to human health and to the country's economy. Outbreaks occur mainly in tropical areas; however, increasing number of cases have been observed in Rio Grande do Sul (RS), the Southernmost state; therefore, surveillance of these arboviruses is essential for public health measures. DESIGN: In this study, we analyzed 1276 samples from patients with clinically suspected arboviral diseases between 2014 and 2016...
September 20, 2017: Reviews in Medical Virology
https://www.readbyqxmd.com/read/28928416/zika-virus-infection-confers-protection-against-west-nile-virus-challenge-in-mice
#5
Ángela Vázquez-Calvo, Ana-Belén Blázquez, Estela Escribano-Romero, Teresa Merino-Ramos, Juan-Carlos Saiz, Miguel A Martín-Acebes, Nereida Jiménez de Oya
Flaviviruses are RNA viruses that constitute a worrisome threat to global human and animal health. Zika virus (ZIKV), which was initially reported to cause a mild disease, recently spread in the Americas, infecting millions of people. During this recent epidemic, ZIKV infection has been linked to serious neurological diseases and birth defects, specifically Guillain-Barrè syndrome (GBS) and microcephaly. Because information about ZIKV immunity remains scarce, we assessed the humoral response of immunocompetent mice to infection with three viral strains of diverse geographical origin (Africa, Asia and America)...
September 20, 2017: Emerging Microbes & Infections
https://www.readbyqxmd.com/read/28916391/zika-virus-structural-biology-and-progress-in-vaccine-development
#6
REVIEW
Hsiao-Han Lin, Bak-Sau Yip, Li-Min Huang, Suh-Chin Wu
The growing number of zika virus (ZIKV) infections plus a 20-fold increase in neonatal microcephaly in newborns in Brazil have raised alarms in many countries regarding the threat to pregnant women. Instances of microcephaly and central nervous system malformations continue to increase in ZIKV outbreak regions. ZIKV is a small enveloped positive-strand RNA virus belonging to the Flavivirus genus of the Flaviviridae family. High-resolution ZIKV structures recently identified by cryo-electron microscopy indicate that the overall ZIKV structure is similar to those of other flaviviruses...
September 12, 2017: Biotechnology Advances
https://www.readbyqxmd.com/read/28914749/raised-frequency-of-microcephaly-related-to-zika-virus-infection-in-two-birth-defects-surveillance-systems-in-bogot%C3%A3-and-cali-colombia
#7
Paula Hurtado-Villa, Angie K Puerto, Salomé Victoria, Gloria Gracia, Lesly Guasmayán, Patricia Arce, Gilberto Álvarez, Esperanza Blandón, Nubia Rengifo, Jorge A Holguín, Alexander Durán, Ignacio Zarante
Zika virus infection during pregnancy is now known to cause congenital microcephaly and severe brain defects. In 2016, rates of microcephaly appeared to start increasing around May, peaking in July, and declining through December. The occurrence of microcephaly appears to have increased nearly 4-fold in 2 large cities in Colombia, concurrently with the reported Zika virus epidemic in the country.
October 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28912110/the-genetics-of-congenitally-small-brains
#8
REVIEW
Sarah Duerinckx, Marc Abramowicz
Primary microcephaly (PM) refers to a congenitally small brain, resulting from insufficient prenatal production of neurons, and serves as a model disease for brain volumic development. Known PM genes delineate several cellular pathways, among which the centriole duplication pathway, which provide interesting clues about the cellular mechanisms involved. The general interest of the genetic dissection of PM is illustrated by the convergence of Zika virus infection and PM gene mutations on congenital microcephaly, with CENPJ/CPAP emerging as a key target...
September 11, 2017: Seminars in Cell & Developmental Biology
https://www.readbyqxmd.com/read/28900143/a-unique-case-of-human-zika-virus-infection-in-association-with-severe-liver-injury-and-coagulation-disorders
#9
Yanhua Wu, Xiaoyun Cui, Na Wu, Rui Song, Wei Yang, Wei Zhang, Dongying Fan, Zhihai Chen, Jing An
Zika virus (ZIKV) has caused major concern globally due to its rapid dissemination and close association with microcephaly in children and Gullian-Barr syndrome in adults. In this study, we identified a patient returned from Cambodia who experienced high fever, chill and myalgia. Lab tests discovered sign of severe liver injury including significantly elevated serum transaminases' level, decreased serum albumin level, and markedly increased levels of lactic dehydrogenase, alpha-hydroxybutyric dehydrogenase and creatine kinase in serum...
September 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28898891/new-insights-into-the-natural-history-of-congenital-zika-virus-syndrome
#10
María Guadalupe Lovagnini Frutos, José Héctor Ochoa, María Gabriela Barbás, Héctor Dante Lucchini, Martín Moya, Gustavo Malinger
We describe the prenatal evolution of the brain findings in a patient with proved Zika virus infection at 8 weeks of gestation showing the very early appearance at 17 weeks of ventriculomegaly and signs of brain parenchymal involvement without microcephaly. The involvement of the brain becomes more evident at 22 and 27 weeks with the apparition of calcifications and microcephaly. Interestingly, the postnatal findings failed to show significant worsening when compared to these prenatal findings.
September 13, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/28893652/a-new-threat-to-human-reproduction-system-posed-by-zika-virus-zikv-from-clinical-investigations-to-experimental-studies
#11
REVIEW
Xiangdong Li, Wenqiang Ma, Gary Wong, Shuoqian Ma, Shihua Li, Yuhai Bi, George F Gao
Zika virus (ZIKV) was first isolated in 1947 from a rhesus monkey in the Zika forest of Uganda. ZIKV has since been silently circulating in a number of equatorial countries for over 50 years. The largest outbreak in humans occurred in Brazil in 2015-2016. Unlike its flavivirus relatives, sexual and post-transfusion transmissions of ZIKV have been reported. In addition, fetal infection can result in microcephaly and congenital Zikv syndrome has been reported in neonates. Moreover, ZIKV RNA can persist for at least 6 months in semen and 11 weeks in vaginal secretions after the infection, suggesting potential tropism for the male and female genital tracts...
September 8, 2017: Virus Research
https://www.readbyqxmd.com/read/28893603/human-polyclonal-antibodies-produced-in-transchromosomal-cattle-prevent-lethal-zika-virus-infection-and-testicular-atrophy-in-mice
#12
Derek R Stein, Joseph W Golden, Bryan D Griffin, Bryce M Warner, Charlene Ranadheera, Leanne Scharikow, Angela Sloan, Kathy L Frost, Darwyn Kobasa, Stephanie A Booth, Matthew Josleyn, John Ballantyne, Eddie Sullivan, Jin-An Jiao, Hua Wu, Zhongde Wang, Jay W Hooper, David Safronetz
Zika virus (ZIKV) is rapidly spreading throughout the Americas and is associated with significant fetal complications, most notably microcephaly. Treatment with polyclonal antibodies for pregnant women at risk of ZIKV-related complications could be a safe alternative to vaccination. We found that large quantities of human polyclonal antibodies could be rapidly produced in transchromosomal bovines (TcB) and successfully used to protect mice from lethal infection. Additionally, antibody treatment eliminated ZIKV induced tissue damage in immunologically privileged sites such as the brain and testes and protected against testicular atrophy...
September 8, 2017: Antiviral Research
https://www.readbyqxmd.com/read/28887877/epidemiological-and-ecological-determinants-of-zika-virus-transmission-in-an-urban-setting
#13
José Lourenço, Maricelia Maia de Lima, Nuno Rodrigues Faria, Andrew Walker, Moritz Ug Kraemer, Christian Julian Villabona-Arenas, Ben Lambert, Erenilde Marques de Cerqueira, Oliver G Pybus, Luiz Cj Alcantara, Mario Recker
The Zika virus has emerged as a global public health concern. Its rapid geographic expansion is attributed to the success of Aedes mosquito vectors, but local epidemiological drivers are still poorly understood. Feira de Santana played a pivotal role in the Chikungunya epidemic in Brazil and was one of the first urban centres to report Zika infections. Using a climate-driven transmission model and notified Zika case data, we show that a low observation rate and high vectorial capacity translated into a significant attack rate during the 2015 outbreak, with a subsequent decline in 2016 and fade-out in 2017 due to herd-immunity...
September 9, 2017: ELife
https://www.readbyqxmd.com/read/28878777/zika-virus-promotes-neuronal-cell-death-in-a-non-cell-autonomous-manner-by-triggering-the-release-of-neurotoxic-factors
#14
Isabella G Olmo, Toniana G Carvalho, Vivian V Costa, Juliana Alves-Silva, Carolina Z Ferrari, Tatiane C Izidoro-Toledo, Juliana F da Silva, Antonio L Teixeira, Danielle G Souza, Joao T Marques, Mauro M Teixeira, Luciene B Vieira, Fabiola M Ribeiro
Zika virus (ZIKV) has recently caused a worldwide outbreak of infections associated with severe neurological complications, including microcephaly in infants born from infected mothers. ZIKV exhibits high neurotropism and promotes neuroinflammation and neuronal cell death. We have recently demonstrated that N-methyl-d-aspartate receptor (NMDAR) blockade by memantine prevents ZIKV-induced neuronal cell death. Here, we show that ZIKV induces apoptosis in a non-cell autonomous manner, triggering cell death of uninfected neurons by releasing cytotoxic factors...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28877754/association-between-suspected-zika-virus-disease-during-pregnancy-and-giving-birth-to-a-newborn-with-congenital-microcephaly-a-matched-case-control-study
#15
Ticiane Henriques Santa Rita, Renata Barcelos Barra, Gisele Pasquali Peixoto, Pedro Goes Mesquita, Gustavo Barcelos Barra
OBJECTIVE: In early 2015, an outbreak of an acute exanthematous illness with dengue-like symptoms occurred in northeastern Brazil. By the end of the same year, an unexpected increase in the number of cases of microcephaly was observed in the region. The microcephaly outbreak cause was unknown and rumors pointing to various potential causes arose. Since we were unaware at the time if this scenario would attract the interest of the broader scientific community, due to the neglected regions associated and as often happens with many others health conditions related to infectious diseases in Latin America...
September 6, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28870427/-how-to-deal-with-a-fetal-head-circumference-lower-than-the-third-percentile
#16
P Mace, M Milh, N Girard, S Sigaudy, E Quarello
The prenatal finding of a head circumference (HC) below the 3rd percentile (p) remains, in the same way as short femur or increased nuchal translucency with normal karyotype, one the most difficult situations for the praticionner in the setting of prenatal diagnosis. Microcephaly is a gateway to possible cerebral pathologies, but the main objective is to identify serious prenatal situations. A standardized HC measurement, the use of adapted reference tools and charts, longitudinal following of cephalic biometrics in high-risk situations, and systematic central nervous system analysis can increase the diagnostic performance of ultrasound which is often disappointing for microcephaly...
September 1, 2017: Gynecologie, Obstetrique, Fertilite & Senologie
https://www.readbyqxmd.com/read/28867493/taking-the-defensive-immune-control-of-zika-virus-infection
#17
REVIEW
James R Bowen, Matthew G Zimmerman, Mehul S Suthar
ZIKV is a neurotropic mosquito-borne flavivirus that has recently emerged in the Americas and is a pathogen of significant public health concern across the world. ZIKV was first isolated in Uganda in 1947 and remained dormant in Africa and Asia for decades, with sporadic outbreaks characterized by a mild self-limiting disease in humans. The emergence of ZIKV in the Americas corresponded with enhanced disease severity and congenital Zika syndrome, a phenotype characterized by severe microcephaly, brain anomalies, ocular anomalies, congenital contractures and neurological impairments...
September 1, 2017: Virus Research
https://www.readbyqxmd.com/read/28864425/functional-rna-during-zika-virus-infection
#18
REVIEW
Giel P Göertz, Sandra R Abbo, Jelke J Fros, Gorben P Pijlman
Zika virus (ZIKV; family Flaviviridae; genus Flavivirus) is a pathogenic mosquito-borne RNA virus that currently threatens human health in the Americas, large parts of Asia and occasionally elsewhere in the world. ZIKV infection is often asymptomatic but can cause severe symptoms including congenital microcephaly and Guillain-Barré syndrome. The positive single-stranded RNA genome of the mosquito-borne ZIKV requires effective replication in two evolutionary distinct hosts - mosquitoes and primates. In addition to some of the viral proteins, the ZIKV genomic RNA and functional RNAs produced thereof aid in the establishment of productive infection and the evasion of host cell antiviral responses...
August 31, 2017: Virus Research
https://www.readbyqxmd.com/read/28855646/immunization-with-truncated-envelope-protein-of-zika-virus-induces-protective-immune-response-in-mice
#19
Jian-Feng Han, Yang Qiu, Jiu-Yang Yu, Hong-Jiang Wang, Yong-Qiang Deng, Xiao-Feng Li, Hui Zhao, Han-Xiao Sun, Cheng-Feng Qin
The global spread of Zika virus (ZIKV) as well as its unexpected link to infant microcephaly have resulted in serious public health concerns. No antiviral drugs against ZIKV is currently available, and vaccine development is of high priority to prepare for potential ZIKV pandemic. In the present study, a truncated E protein with the N-terminal 90% region reserved (E90) from a contemporary ZIKV strain was cloned and expressed in Escherichia coli, purified by a Ni-NTA column, and characterized by Western blotting assays...
August 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28852261/mental-health-of-zika-virus-infected-mother-and-mother-of-newborn-with-microcephaly
#20
Viroj Wiwanitkit
No abstract text is available yet for this article.
July 2017: Indian Journal of Psychological Medicine
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