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https://www.readbyqxmd.com/read/28811345/inhibitors-of-the-histone-methyltransferases-ezh2-1-induce-a-potent-antiviral-state-and-suppress-infection-by-diverse-viral-pathogens
#1
Jesse H Arbuckle, Paul J Gardina, David N Gordon, Heather D Hickman, Jonathan W Yewdell, Theodore C Pierson, Timothy G Myers, Thomas M Kristie
Epigenetic regulation is based on a network of complexes that modulate the chromatin character and structure of the genome to impact gene expression, cell fate, and development. Thus, epigenetic modulators represent novel therapeutic targets used to treat a range of diseases, including malignancies. Infectious pathogens such as herpesviruses are also regulated by cellular epigenetic machinery, and epigenetic therapeutics represent a novel approach used to control infection, persistence, and the resulting recurrent disease...
August 15, 2017: MBio
https://www.readbyqxmd.com/read/28811170/zika-virus-research-models
#2
REVIEW
Jessica L Kublin, James B Whitney
The 2015 Brazilian Zika virus outbreak sparked a rapid response to control the spread of the virus. What was first understood to be a mild self-resolving infection is now linked to significant neurological defects in both neonates, and adults. The WHO declared the 2016 Zika epidemic a public health emergency and issued an unprecedented recommendation to women in affected regions to delay pregnancy until the risks surrounding Zika virus could be understood, or the epidemic contained. Since that time, considerable effort has been dedicated to understanding Zika transmission and pathogenesis to aid the development of drugs and vaccines...
August 12, 2017: Virus Research
https://www.readbyqxmd.com/read/28810265/viral-retinopathy-in-experimental-models-of-zika-infection
#3
Zhenyang Zhao, Matthew Yang, Sasha R Azar, Lynn Soong, Scott C Weaver, Jiaren Sun, Yan Chen, Shannan L Rossi, Jiyang Cai
Purpose: Emerging evidence has shown that both congenital and adult Zika virus (ZIKV) infection can cause eye diseases. The goals of the current study were to explore mechanisms and pathophysiology of ZIKV-induced eye defects. Methods: Wild-type or A129 interferon type I receptor-deficient mice were infected by either FSS13025 or Mex1-7 strain of ZIKV. Retinal histopathology was measured at different time points after infection. The presence of viral RNA and protein in the retina was determined by in situ hybridization and immunofluorescence staining, respectively...
August 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28806618/public-sentiment-and-discourse-about-zika-virus-on-instagram
#4
E K Seltzer, E Horst-Martz, M Lu, R M Merchant
OBJECTIVE: Social media have strongly influenced the awareness and perceptions of public health emergencies, and a considerable amount of social media content is now shared through images, rather than text alone. This content can impact preparedness and response due to the popularity and real-time nature of social media platforms. We sought to explore how the image-sharing platform Instagram is used for information dissemination and conversation during the current Zika outbreak. STUDY DESIGN: This was a retrospective review of publicly posted images about Zika on Instagram...
August 11, 2017: Public Health
https://www.readbyqxmd.com/read/28806562/zika-virus-induced-neurological-critical-illness-in-latin-america-severe-guillain-barre-syndrome-and-encephalitis
#5
Sebastián U Ugarte, Angel Ricardo V Arenas, Bruno C Alvarez, Angela Cubides, Angélica F Luna, Max Arroyo-Parejo, Cayri E Acuña, Agamenón V Quintero, Orlando Ch Villareal, Oscar S Pinillos, Elías Vieda, Manuel Bello, Susana Peña, Carmelo Dueñas-Castell, Gloria M V Rodriguez, Jorge L M Ranero, Rosa L M López, Sandra G Olaya, José C Vergara, Ana Tandazo, Juan P S Ospina, Igor M Leyton Soto, R A Fowler, John C Marshall
Zika virus (ZIKAV) is classically described as causing minor symptoms in adult patients, however neurologic complications have been recognized. The recent outbreak in Central and South America has resulted in serious illness in some adult patients. We report adult patients in Latin America diagnosed with ZIKAV infection admitted to Intensive Care Units (ICUs). METHODS: Multicenter, prospective case series of adult patients with laboratory diagnosis of ZIKAV in 16 ICUs in 8 countries. RESULTS: Between December 1st 2015 and April 2nd 2016, 16 ICUs in 8 countries enrolled 49 critically ill patients with diagnosis of ZIKAV infection...
August 9, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28806479/zika-virus-disease-in-children-in-colombia-august-2015-to-may-2016
#6
Natalia Tolosa, Sarah C Tinker, Oscar Pacheco, Diana Valencia, Daniela Salas Botero, Van T Tong, Marcela Mercado, Suzanne M Gilboa, Maritza Gonzalez, Christina A Nelson, Lissethe Pardo, Carol Y Rao, Angélica Rico, Meredith Moore, Edgar Parra, Margaret A Honein, Martha L Ospina Martínez
BACKGROUND: Children are considered a potentially vulnerable population for Zika virus infection. However, data on paediatric Zika virus infection are sparse. METHODS: We analysed data from Colombia's national surveillance system during the 2015-2016 Zika virus outbreak on patients meeting the clinical case definition of Zika virus disease (ZVD) among children aged 1 month to 18 years to estimate incidence by demographic characteristics and characterize the occurrence of selected complications...
August 14, 2017: Paediatric and Perinatal Epidemiology
https://www.readbyqxmd.com/read/28806454/the-expanding-spectrum-of-zika-virus-infections-of-the-nervous-system
#7
Kenneth L Tyler, Karen L Roos
No abstract text is available yet for this article.
August 14, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/28806453/neurologic-complications-associated-with-the-zika-virus-in-brazilian-adults
#8
Ivan Rocha Ferreira da Silva, Jennifer A Frontera, Ana Maria Bispo de Filippis, Osvaldo Jose Moreira do Nascimento
Importance: There are no prospective cohort studies assessing the incidence and spectrum of neurologic manifestations secondary to Zika virus (ZIKV) infection in adults. Objective: To evaluate the rates of acute ZIKV infection among patients hospitalized with Guillain-Barré syndrome (GBS), meningoencephalitis, or transverse myelitis. Design, Setting, and Participants: A prospective, observational cohort study was conducted at a tertiary referral center for neurological diseases in Rio de Janeiro, Brazil, between December 5, 2015, and May 10, 2016, among consecutive hospitalized adults (>18 years of age) with new-onset acute parainfectious or neuroinflammatory disease...
August 14, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/28806105/zika-virus-in-ontario-evaluating-a-rapid-risk-assessment-tool
#9
Sim Sai Tin, Viroj Wiwanitkit
No abstract text is available yet for this article.
August 14, 2017: Health Security
https://www.readbyqxmd.com/read/28805637/wolbachia-mediated-virus-blocking-in-the-mosquito-vector-aedes-aegypti
#10
REVIEW
Gerard Terradas, Elizabeth A McGraw
Viruses transmitted by mosquitoes such as dengue, Zika and West Nile cause a threat to global health due to increased geographical range and frequency of outbreaks. The bacterium Wolbachia pipientis may be the solution reducing disease transmission. Though commonly missing in vector species, the bacterium was artificially and stably introduced into Aedes aegypti to assess its potential for biocontrol. When infected with Wolbachia, mosquitoes become refractory to infection by a range of pathogens, including the aforementioned viruses...
August 2017: Current Opinion in Insect Science
https://www.readbyqxmd.com/read/28805465/what-we-are-watching-top-global-infectious-disease-threats-2013-2016-an-update-from-cdc-s-global-disease-detection-operations-center
#11
Kira A Christian, A Danielle Iuliano, Timothy M Uyeki, Eric D Mintz, Stuart T Nichol, Pierre Rollin, J Erin Staples, Ray R Arthur
To better track public health events in areas where the public health system is unable or unwilling to report the event to appropriate public health authorities, agencies can conduct event-based surveillance, which is defined as the organized collection, monitoring, assessment, and interpretation of unstructured information regarding public health events that may represent an acute risk to public health. The US Centers for Disease Control and Prevention's (CDC's) Global Disease Detection Operations Center (GDDOC) was created in 2007 to serve as CDC's platform dedicated to conducting worldwide event-based surveillance, which is now highlighted as part of the "detect" element of the Global Health Security Agenda (GHSA)...
August 14, 2017: Health Security
https://www.readbyqxmd.com/read/28804687/zika-virus-zikv-a-review-of-proposed-mechanisms-of-transmission-and-associated-congenital-abnormalities
#12
Sruti K Desai, Steven D Hartman, Shilpa Jayarajan, Stephanie Liu, G Ian Gallicano
Zika virus (ZIKV) has been of major international public health concern following large outbreaks in the Americas occurring in 2015-2016. Most notably, ZIKV has been seen to pose dangers in pregnancy due to its association with congenital abnormalities such as microcephaly. Numerous experimental approaches have been taken to address how the virus can cross the placenta, alter normal fetal development, and disrupt specific cellular functions. Many areas concerning the mechanisms of transmission, especially from mother to fetus, are largely unknown but demand further research...
2017: American Journal of Stem Cells
https://www.readbyqxmd.com/read/28803932/the-thiopurine-nucleoside-analogue-6-methylmercaptopurine-riboside-6mmpr-effectively-blocks-zika-virus-replication
#13
Otavio Valério de Carvalho, Daniele Mendes Félix, Leila Rodrigues de Mendonça, Catarina Maria Cataldi Sabino de Araújo, Rafael Freitas de Oliveira Franca, Marli Tenório Cordeiro, Abelardo Silva Júnior, Lindomar José Pena
Since the emergence of Zika virus (ZIKV) in Brazil in 2015, 48 countries and territories in the Americas have confirmed autochthonous cases of the disease caused by the virus. The ZIKV-associated neurological manifestations and congenital defects make the development of safe and effective antivirals against ZIKV of utmost importance. Here, we evaluated the antiviral activity of 6-methylmercaptopurine riboside (6MMPr), a thiopurine nucleoside analog derived from the prodrug azathioprine (AZA), against the epidemic ZIKV strain circulating in Brazil...
August 10, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28803703/viral-hijacking-of-formins-in-neurodevelopmental-pathologies
#14
REVIEW
Karen Racicot, Sarah VanOeveren, Art Alberts
The 2015 Zika virus (ZIKV) outbreak caused global concern when it was determined to cause microcephaly, hearing loss, and other neurodevelopmental manifestations upon fetal exposure. Significant progress has been made in our understanding of the interactions between ZIKV and the pregnant host, but there is still a critical need to understand how ZIKV and other neurotropic viruses affect fetal neurodevelopment. Diaphanous-related formins (Diaphs) have recently been identified as microcephaly-associated proteins in humans and mice...
August 10, 2017: Trends in Molecular Medicine
https://www.readbyqxmd.com/read/28803579/zika-virus-and-neurological-disease-investing-in-prevention
#15
Valentina Chiesa, Pietro Ragni
No abstract text is available yet for this article.
August 14, 2017: Disaster Medicine and Public Health Preparedness
https://www.readbyqxmd.com/read/28803069/estimating-the-reproductive-number-total-outbreak-size-and-reporting-rates-for-zika-epidemics-in-south-and-central-america
#16
Deborah P Shutt, Carrie A Manore, Stephen Pankavich, Aaron T Porter, Sara Y Del Valle
As South and Central American countries prepare for increased birth defects from Zika virus outbreaks and plan for mitigation strategies to minimize ongoing and future outbreaks, understanding important characteristics of Zika outbreaks and how they vary across regions is a challenging and important problem. We developed a mathematical model for the 2015/2016 Zika virus outbreak dynamics in Colombia, El Salvador, and Suriname. We fit the model to publicly available data provided by the Pan American Health Organization, using Approximate Bayesian Computation to estimate parameter distributions and provide uncertainty quantification...
July 13, 2017: Epidemics
https://www.readbyqxmd.com/read/28798738/zika-virus-an-emerging-worldwide-threat
#17
Irfan A Rather, Jameel B Lone, Vivek K Bajpai, Woon K Paek, Jeongheui Lim
ZIKA virus (ZIKV) poses a severe threat to the world. Recent outbreaks of ZIKV after 2007 along with its quick transmission have made this virus a matter of international concern. The virus shows symptoms that are similar to those caused in the wake of dengue virus (DENV) and other flaviviruses, which makes it difficult to discern the viral infection. Diagnosis is further complicated as the virus cross-reacts with antibodies of other viruses. Currently, molecular diagnosis of the virus is being performed by RT-PCR and IgM-captured enzyme-linked immunosorbent assay (MAC-ELISA)...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28798323/modeling-the-transmission-and-control-of-zika-in-brazil
#18
Liping Wang, Hongyong Zhao, Sergio Muniz Oliva, Huaiping Zhu
Zika virus, a reemerging mosquito-borne flavivirus, started spread across Central and Southern America and more recently to North America. The most serious impacted country is Brazil. Based on the transmission mechanism of the virus and assessment of the limited data on the reported suspected cases, we establish a dynamical model which allows us to estimate the basic reproduction number R 0 = 2.5020. The wild spreading of the virus make it a great challenge to public health to control and prevention of the virus...
August 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28797534/current-status-of-therapeutic-and-vaccine-approaches-against-zika-virus
#19
REVIEW
Braira Wahid, Amjad Ali, Shazia Rafique, Muhammad Idrees
Zika virus (ZIKV) is a global threat because it is spreading at an alarming rate because of its wider range of transmission routes. The neuroteratogenic nature of ZIKV infection is posing serious threats to unborn lives therefore, it is necessary to develop an ideal ZIKV prophylactic or therapeutic agent urgently. Researchers are having tough time finding a treatment for ZIKV in part because of serious consequences of vaccines and drugs to unborn lives and pregnant women. However, in vitro and in vivo evaluation of therapeutic efficacy of DNA vaccine, recombinant subunit vaccine, and ZIKV purified inactivated vaccine offers hope for human protection...
August 7, 2017: European Journal of Internal Medicine
https://www.readbyqxmd.com/read/28796799/differential-outcomes-of-zika-virus-infection-in-aedes-aegypti-orally-challenged-with-infectious-blood-meals-and-infectious-protein-meals
#20
Yan-Jang S Huang, Amy C Lyons, Wei-Wen Hsu, So Lee Park, Stephen Higgs, Dana L Vanlandingham
BACKGROUND: Infection of mosquitoes is an essential step for the transmission of mosquito-borne arboviruses in nature. Engorgement of infectious blood meals from viremic infected vertebrate hosts allows the entry of viruses and initiates infection of midgut epithelial cells. Historically, the infection process of arboviruses in mosquitoes has been studied through the engorgement of mosquitoes from viremic laboratory animals or from artificial feeders containing blood mixed with viruses harvested from cell cultures...
2017: PloS One
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