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https://www.readbyqxmd.com/read/27912090/advances-in-zika-virus-research-stem-cell-models-challenges-and-opportunities
#1
REVIEW
Guo-Li Ming, Hengli Tang, Hongjun Song
The re-emergence of Zika virus (ZIKV) and its suspected link with various disorders in newborns and adults led the World Health Organization to declare a global health emergency. In response, the stem cell field quickly established platforms for modeling ZIKV exposure using human pluripotent stem cell-derived neural progenitors and brain organoids, fetal tissues, and animal models. These efforts provided significant insight into cellular targets, pathogenesis, and underlying biological mechanisms of ZIKV infection as well as platforms for drug testing...
December 1, 2016: Cell Stem Cell
https://www.readbyqxmd.com/read/27899230/experimental-zika-virus-infection-induces-spinal-cord-injury-and-encephalitis-in-newborn-swiss-mice
#2
Natália C C A Fernandes, Juliana S Nogueira, Rodrigo A Réssio, Cinthya S Cirqueira, Lidia M Kimura, Karolina R Fernandes, Mariana S Cunha, Renato P Souza, Juliana M Guerra
A widespread epidemic of Zika virus (ZIKV) infection was reported in 2015 in South and Central America, with neurological symptons including meningoencephalitis and Guillain-Barré syndrome in adults, besides an apparent increased incidence of microcephaly in infants born to infected mothers. It is becoming a necessity to have a trustworthy animal model to better understand ZIKV infection. In this study we used newborn white Swiss mice as a model to investigate the ZIKV strain recently isolated in Brazil. ZIKV was inoculated via intracerebral and subcutaneous routes and analysed through gross histopathology and immunohistochemistry...
November 26, 2016: Experimental and Toxicologic Pathology: Official Journal of the Gesellschaft Für Toxikologische Pathologie
https://www.readbyqxmd.com/read/27885741/zika-and-pregnancy-a-comprehensive-review
#3
Adrija Hajra, Dhrubajyoti Bandyopadhyay, Lyndsey R Heise, Rajarshi Bhadra, Somedeb Ball, Shyamal Kumar Hajra
Zika virus (ZIKV) infection is a well-nurtured topic for healthcare personnel nowadays. Central nervous system involvement including microcephaly and ocular involvements has already been reported in neonates of affected pregnant ladies. In this article, we have discussed these effects on the newborns of ZIKV-infected mothers. The proposed pathogenesis, modes of transmission of this infection from mothers to the fetuses, diagnosis of the cases and precaution for the pregnant ladies have also been discussed. We have gathered the recently available data on the risk of ZIKV for expectant mothers from PubMed, https://www...
November 25, 2016: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/27878100/neurological-manifestations-of-zika-virus-infection
#4
REVIEW
Ana-Belén Blázquez, Juan-Carlos Saiz
Zika virus (ZIKV) is a flavivirus (Flaviviridae family) transmitted mainly by Aedes mosquitoes. The virus was restricted to the African continent until its spread to south-east Asia in the 1980's, the Micronesia in 2007, the French Polynesia in 2013 and, more recently in the Americas in 2015, where, up to date, the World Health Organization (WHO) has estimated about 3-4 million total cases of ZIKV infection. During outbreaks in the French Polynesia and Brazil in 2013 and 2015, respectively, national health authorities reported potential neurological complications of ZIKV disease, chiefly an upsurge in Guillain-Barré syndrome, which coincided with ZIKV outbreaks...
November 12, 2016: World Journal of Virology
https://www.readbyqxmd.com/read/27862008/zika-virus-global-health-challenge-threat-and-current-situation
#5
REVIEW
Hafsa Aziz, Aadarash Zia, Amania Anwer, Muneeba Aziz, Shazia Fatima, Muhammad Faheem
ZIKV has emerged as grave global health issue in the past few years. ZIKV was firstly isolated in 1947 from a rhesus sentinel monkey in the Zika forest in Uganda. It is usually transmitted by the bite of infected mosquitoes and infects skin fibroblasts, skin keratinocytes etc. ZIKV until now was under reported because of its clinical similarity with the dengue and chikungunya. It usually spread through the course of the sylvatic cycle. In this cycle, the virus or pathogen lifespan is spent between the wild animal and vectors...
November 10, 2016: Journal of Medical Virology
https://www.readbyqxmd.com/read/27829655/cuba-time-to-expand-health-in-all-policies
#6
Pastor Castell-Florit Serrate, Pedro Más-Bermejo
The Adelaide Statement on Health in All Policies (2010), lays out equity-based principles designed to guide policymakers on incorporating health and well-being components into the development, implementation and evaluation of policy and practice while moving towards shared governance at all levels-local, regional, national and international. Special emphasis is placed on cross-sector coordination to achieve policy goals, while improving health and well-being for all.[1] In Cuba's case, experience in disaster preparedness, particularly for hurricanes, has shown good cross-sector coordination...
October 2016: MEDICC Review
https://www.readbyqxmd.com/read/27822207/rapid-detection-strategies-for-the-global-threat-of-zika-virus-current-state-new-hypotheses-and-limitations
#7
REVIEW
Shruti Shukla, Sung-Yong Hong, Soo Hyun Chung, Myunghee Kim
The current scenario regarding the widespread Zika virus (ZIKV) has resulted in numerous diagnostic studies, specifically in South America and in locations where there is frequent entry of travelers returning from ZIKV-affected areas, including pregnant women with or without clinical symptoms of ZIKV infection. The World Health Organization, WHO, announced that millions of cases of ZIKV are likely to occur in the USA in the near future. This situation has created an alarming public health emergency of international concern requiring the detection of this life-threatening viral candidate due to increased cases of newborn microcephaly associated with ZIKV infection...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27812648/zika-in-pernambuco-rewriting-the-first-outbreak
#8
Carlos Alexandre Antunes de Brito, Cecilia Coelho Moraes de Brito, Augusto César Oliveira, Marilia Rocha, Caio Atanásio, Carolina Asfora, Júlio Dourado Matos, Anton Saraiva Lima, Maria Fátima Militão Albuquerque
INTRODUCTION: A Zika virus epidemic was registered in 2015 in Northeast Brazil. In the State of Pernambuco, thousands of classical cases transpired, and in the following months, neurological disturbances in adults and microcephaly in newborns emerged as complications. After the peak of the epidemic, the official system reported only four cases of Zika virus but over 100,000 cases of dengue virus. The vigilance system was unable to retrospectively estimate cases or to issue an alert to officially notified cases with possible inconsistence concerning specific arbovirosis diagnoses...
September 2016: Revista da Sociedade Brasileira de Medicina Tropical
https://www.readbyqxmd.com/read/27812601/pyriproxyfen-and-the-microcephaly-epidemic-in-brazil-an-ecological-approach-to-explore-the-hypothesis-of-their-association
#9
Maria de Fatima P Militão de Albuquerque, Wayner V de Souza, Antônio da Cruz G Mendes, Tereza M Lyra, Ricardo Aa Ximenes, Thália Vb Araújo, Cynthia Braga, Demócrito B Miranda-Filho, Celina Mt Martelli, Laura C Rodrigues
The microcephaly epidemic in Brazil generated intense debate regarding its causality, and one hypothesised cause of this epidemic, now recognised as congenital Zika virus syndrome, was the treatment of drinking water tanks with pyriproxyfen to control Aedes aegypti larvae. We present the results of a geographical analysis of the association between the prevalence of microcephaly confirmed by Fenton growth charts and the type of larvicide used in the municipalities that were home to the mothers of the affected newborns in the metropolitan region of Recife in Pernambuco, the state in Brazil where the epidemic was first detected...
October 31, 2016: Memórias do Instituto Oswaldo Cruz
https://www.readbyqxmd.com/read/27797853/zika-virus-inhibits-type-i-interferon-production-and-downstream-signaling
#10
Anil Kumar, Shangmei Hou, Adriana M Airo, Daniel Limonta, Valeria Mancinelli, William Branton, Christopher Power, Tom C Hobman
Zika virus is an emerging mosquito-borne pathogen that is associated with Guillain-Barré syndrome in adults and microcephaly and other neurological defects in newborns. Despite being declared an international emergency by the World Health Organization, comparatively little is known about its biology. Here, we investigate the strategies employed by the virus to suppress the host antiviral response. We observe that once established, Zika virus infection is impervious to interferon treatment suggesting that the virus deploys effective countermeasures to host cell defences...
December 2016: EMBO Reports
https://www.readbyqxmd.com/read/27723844/a-lipidomics-approach-in-the-characterization-of-zika-infected-mosquito-cells-potential-targets-for-breaking-the-transmission-cycle
#11
Carlos Fernando Odir Rodrigues Melo, Diogo Noin de Oliveira, Estela de Oliveira Lima, Tatiane Melina Guerreiro, Cibele Zanardi Esteves, Raissa Marques Beck, Marina Aiello Padilla, Guilherme Paier Milanez, Clarice Weis Arns, José Luiz Proença-Modena, Jayme Augusto Souza-Neto, Rodrigo Ramos Catharino
Recent outbreaks of Zika virus in Oceania and Latin America, accompanied by unexpected clinical complications, made this infection a global public health concern. This virus has tropism to neural tissue, leading to microcephaly in newborns in a significant proportion of infected mothers. The clinical relevance of this infection, the difficulty to perform accurate diagnosis and the small amount of data in literature indicate the necessity of studies on Zika infection in order to characterize new biomarkers of this infection and to establish new targets for viral control in vertebrates and invertebrate vectors...
2016: PloS One
https://www.readbyqxmd.com/read/27721110/an-updated-review-of-zika-virus
#12
Abdelrahman Ibrahim Abushouk, Ahmed Negida, Hussien Ahmed
The current outbreak of Zika virus (ZIKV) in South America is one of the most serious public health emergencies since the Ebola outbreak of West Africa [2014]. ZIKV belongs to the flaviviridae family and has two lineages (Asian and African). The virus was first discovered in Uganda [1947] and the first human infection was identified in Nigeria [1952]. The current epidemic is the third of its type after that of Yap Island, Micronesia [2007] and French Polynesia [2013]. Phylogenetic studies revealed that the current strain shares about 99...
October 3, 2016: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/27713505/zika-virus-infection-during-the-period-of-maximal-brain-growth-causes-microcephaly-and-corticospinal-neuron-apoptosis-in-wild-type-mice
#13
Wen-Chin Huang, Rachy Abraham, Byoung-Shik Shim, Hyeryun Choe, Damon T Page
Zika virus (ZIKV) infection in pregnant women has been established as a cause of microcephaly in newborns. Here we test the hypothesis that neurodevelopmental stages when the brain is undergoing rapid growth are particularly vulnerable to the effects of ZIKV infection. We injected ZIKV intracranially into wild type C57BL/6 mice at two different time points: early postnatal development, when the brain is growing at its maximal rate, and at weaning, when the brain has largely reached adult size. Both time points showed widespread immunoreactivity for ZIKV and cleaved caspase 3 (CC3, a marker of apoptosis) throughout the brain...
October 7, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27712118/zika-virus-epidemic-an-update
#14
Gregory Valentine, Lucila Marquez, Mohan Pammi
Zika Virus (ZIKV), previously the cause of only rare and sporadic human infections, is now considered a Public Health Emergency of International Concern. Over the past two years, ZIKV has become a pandemic encompassing much of the Americas. ZIKV is now proven to cause microcephaly and ophthalmic anomalies in the newborn. Hydrops fetalis, developmental delay, and other anomalies are increasingly being attributed to ZIKV infection in fetuses and neonates. Sequelae of congenital infection and rapid spread of ZIKV throughout the Americas has catapulted Zika virus concerns to the forefront of the medical community...
October 7, 2016: Expert Review of Anti-infective Therapy
https://www.readbyqxmd.com/read/27673425/treatment-of-perinatal-viral-infections-to-improve-neurologic-outcomes
#15
REVIEW
William J Muller
Viral infections in the fetus or newborn often involve the central nervous system (CNS) and can lead to significant morbidity and mortality. Substantial progress has been made in identifying interventions decreasing adverse neurodevelopmental outcomes in this population. This review highlights progress in treatment of important viruses affecting the CNS in these susceptible hosts, focusing on herpes simplex virus (HSV), cytomegalovirus (CMV), human immunodeficiency virus (HIV), and enteroviruses. The observation that high-dose acyclovir improves mortality in neonatal HSV disease culminated decades of antiviral research for this disease...
October 26, 2016: Pediatric Research
https://www.readbyqxmd.com/read/27650823/origin-of-the-zika-virus-revealed-a-historical-journey-across-the-world
#16
Stephanie Mlacker, Golsa Shafa, Adam S Aldahan, Vidhi V Shah, Sahal Samarkandy, Keyvan Nouri
BACKGROUND: Zika virus (ZIKV) is an arbovirus within the Flaviviridae family, the recent spread of which has promoted public concern. METHODS: This study outlines the clinical features, potential for teratogenicity, diagnosis, and treatment of ZIKV infection. RESULTS: Zika virus is transmitted through the bite of an infected Stegomyia (= Aedes) mosquito, blood transfusion, sexual intercourse, and perinatal routes. Infection has been characterized as mildly symptomatic...
September 21, 2016: International Journal of Dermatology
https://www.readbyqxmd.com/read/27631604/zika-virus-disease-cases-50-states-and-the-district-of-columbia-january-1-july-31-2016
#17
William L Walker, Nicole P Lindsey, Jennifer A Lehman, Elisabeth R Krow-Lucal, Ingrid B Rabe, Susan L Hills, Stacey W Martin, Marc Fischer, J Erin Staples
Zika virus is a mosquito-borne flavivirus primarily transmitted to humans by Aedes aegypti mosquitoes (1). Zika virus infections have also been documented through intrauterine transmission resulting in congenital infection; intrapartum transmission from a viremic mother to her newborn; sexual transmission; blood transfusion; and laboratory exposure (1-5). Most Zika virus infections are asymptomatic (1,6). Clinical illness, when it occurs, is generally mild and characterized by acute onset of fever, maculopapular rash, arthralgia, or nonpurulent conjunctivitis...
September 16, 2016: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/27617166/radiological-characterization-of-cerebral-phenotype-in-newborn-microcephaly-cases-from-2015-outbreak-in-brazil
#18
Yuri Raoni Ramalho Rocha, José Ricardo Cavalcanti Costa, Pericles Almeida Costa, Gessica Maia, Rafael de Medeiros Vasconcelos, Cynthia Ramos Tejo, Rafaella Martins Batista, Manoel Lima Neto, Gustavo Graco Martins de Lima, Francisco Negromonte, Marcelle Borba, Selma Maria Bezerra Jeronimo, Eduardo Bouth Sequerra, Manuel Moreira Neto
INTRODUCTION: Brazil is facing, since October of 2015, an outbreak of microcephalic fetuses. This outbreak is correlated with the beginning of circulation of Zika virus (ZIKV) in the country. Although it is clear that the size of the head is diminished in these fetuses, the brain phenotype associated with these malformations is unknown. METHODS: We collected computed tomography images of the microcephaly cases from the region of Natal, Rio Grande do Norte, from September 2015 to February 2016...
2016: PLoS Currents
https://www.readbyqxmd.com/read/27612415/zika-virus-infection-in-mice-causes-panuveitis-with-shedding-of-virus-in-tears
#19
Jonathan J Miner, Abdoulaye Sene, Justin M Richner, Amber M Smith, Andrea Santeford, Norimitsu Ban, James Weger-Lucarelli, Francesca Manzella, Claudia Rückert, Jennifer Govero, Kevin K Noguchi, Gregory D Ebel, Michael S Diamond, Rajendra S Apte
Zika virus (ZIKV) is an emerging flavivirus that causes congenital abnormalities and Guillain-Barré syndrome. ZIKV infection also results in severe eye disease characterized by optic neuritis, chorioretinal atrophy, and blindness in newborns and conjunctivitis and uveitis in adults. We evaluated ZIKV infection of the eye by using recently developed mouse models of pathogenesis. ZIKV-inoculated mice developed conjunctivitis, panuveitis, and infection of the cornea, iris, optic nerve, and ganglion and bipolar cells in the retina...
September 20, 2016: Cell Reports
https://www.readbyqxmd.com/read/27583132/an-open-rna-seq-data-analysis-pipeline-tutorial-with-an-example-of-reprocessing-data-from-a-recent-zika-virus-study
#20
Zichen Wang, Avi Ma'ayan
RNA-seq analysis is becoming a standard method for global gene expression profiling. However, open and standard pipelines to perform RNA-seq analysis by non-experts remain challenging due to the large size of the raw data files and the hardware requirements for running the alignment step. Here we introduce a reproducible open source RNA-seq pipeline delivered as an IPython notebook and a Docker image. The pipeline uses state-of-the-art tools and can run on various platforms with minimal configuration overhead...
2016: F1000Research
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