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https://www.readbyqxmd.com/read/29319591/zika-virus-infection-in-the-pregnant-woman
#1
Meghan Holtzman, William C Golden, Jeanne S Sheffield
Zika virus is a single-stranded RNA virus from the Flaviviridae family. Transmission is typically from the bite of an infected mosquito though mother-to-child, sexual and blood donation transmissions can occur. Although maternal symptoms are uncommon and rarely severe, the consequences of congenital infections are devastating. The emergence of congenital Zika syndrome is a world-wide public health crisis. The Centers for Disease Control and Prevention, ACOG, and SMFM have developed algorithms for screening and managing women exposure to and diagnosed with Zika virus infection...
January 9, 2018: Clinical Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29318503/university-students-knowledge-attitudes-and-sources-of-information-about-zika-virus
#2
Ashley N Plaster, Julia E Painter, Dylan H Tjersland, Kathryn H Jacobsen
Colleges and universities are valuable partners for community health education outreach targeted to young adults. After the outbreak of Zika virus infection in the Americas was declared to be a Public Health Emergency of International Concern on February 1, 2016, postsecondary institutions played an important role in educating at-risk communities about health promotion and disease prevention strategies. In April 2016, we recruited 613 undergraduate students from a large public university to complete a survey about their Zika-related knowledge, attitudes, and information seeking behaviors...
January 9, 2018: Journal of Community Health
https://www.readbyqxmd.com/read/29317641/zika-virus-infection-induces-host-inflammatory-responses-by-facilitating-nlrp3-inflammasome-assembly-and-interleukin-1%C3%AE-secretion
#3
Wenbiao Wang, Geng Li, De Wu, Zhen Luo, Pan Pan, Mingfu Tian, Yingchong Wang, Feng Xiao, Aixin Li, Kailang Wu, Xiaohong Liu, Lang Rao, Fang Liu, Yingle Liu, Jianguo Wu
Zika virus (ZIKV) infection is a public health emergency and host innate immunity is essential for the control of virus infection. The NLRP3 inflammasome plays a key role in host innate immune responses by activating caspase-1 to facilitate interleukin-1β (IL-1β) secretion. Here we report that ZIKV stimulates IL-1β secretion in infected patients, human PBMCs and macrophages, mice, and mice BMDCs. The knockdown of NLRP3 in cells and knockout of NLRP3 in mice inhibit ZIKV-mediated IL-1β secretion, indicating an essential role for NLRP3 in ZIKV-induced IL-1β activation...
January 9, 2018: Nature Communications
https://www.readbyqxmd.com/read/29315671/the-antimalarial-drug-amodiaquine-possesses-anti-zika-virus-activities
#4
Yingshan Han, Thibault Mesplède, Hongtao Xu, Yudong Quan, Mark A Wainberg
Zika virus (ZIKV) outbreak has emerged as a global health threat, particularly in tropical areas, over the past few years. No antiviral therapy or vaccine is available at present. For these reasons, repurposing clinically approved drugs against ZIKV infection may provide rapid and cost-effective global health benefits. Here we explored this strategy and screened eight FDA-approved drugs for antiviral activity against ZIKV using a cell-based assay. Our results show that the antimalarial drug amodiaquine has anti-ZIKV activity with EC50 at low micromolar concentrations in cell culture...
January 9, 2018: Journal of Medical Virology
https://www.readbyqxmd.com/read/29315224/the-zika-virus-epidemic-in-brazil-from-discovery-to-future-implications
#5
REVIEW
Rachel Lowe, Christovam Barcellos, Patrícia Brasil, Oswaldo G Cruz, Nildimar Alves Honório, Hannah Kuper, Marilia Sá Carvalho
The first confirmed case of Zika virus infection in the Americas was reported in Northeast Brazil in May 2015, although phylogenetic studies indicate virus introduction as early as 2013. Zika rapidly spread across Brazil and to more than 50 other countries and territories on the American continent. The Aedesaegypti mosquito is thought to be the principal vector responsible for the widespread transmission of the virus. However, sexual transmission has also been reported. The explosively emerging epidemic has had diverse impacts on population health, coinciding with cases of Guillain-Barré Syndrome and an unexpected epidemic of newborns with microcephaly and other neurological impairments...
January 9, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29305089/how-do-virus-mosquito-interactions-lead-to-viral-emergence
#6
REVIEW
Claudia Rückert, Gregory D Ebel
Arboviruses such as West Nile, Zika, chikungunya, dengue, and yellow fever viruses have become highly significant global pathogens through unexpected, explosive outbreaks. While the rapid progression and frequency of recent arbovirus outbreaks is associated with long-term changes in human behavior (globalization, urbanization, climate change), there are direct mosquito-virus interactions which drive shifts in host range and alter virus transmission. This review summarizes how virus-mosquito interactions are critical for these viruses to become global pathogens at molecular, physiological, evolutionary, and epidemiological scales...
January 2, 2018: Trends in Parasitology
https://www.readbyqxmd.com/read/29304110/local-chatter-or-international-buzz-language-differences-on-posts-about-zika-research-on-twitter-and-facebook
#7
Germana Barata, Kenneth Shores, Juan Pablo Alperin
BACKGROUND: When the Zika virus outbreak became a global health emergency in early 2016, the scientific community responded with an increased output of Zika-related research. This upsurge in research naturally made its way into academic journals along with editorials, news, and reports. However, it is not yet known how or whether these scholarly communications were distributed to the populations most affected by Zika. METHODOLOGY/PRINCIPAL FINDINGS: To understand how scientific outputs about Zika reached global and local audiences, we collected Tweets and Facebook posts that linked to Zika-related research in the first six months of 2016...
2018: PloS One
https://www.readbyqxmd.com/read/29302150/the-forgotten-plague-psychiatric-manifestations-of-ebola-zika-and-emerging-infectious-diseases
#8
REVIEW
Veronica Tucci, Nidal Moukaddam, Jonathan Meadows, Suhal Shah, Sagar C Galwankar, G Bobby Kapur
The media and public health generally focus on the biological and physical ramifications of epidemics. Mental health issues that coincide with emerging diseases and epidemics are rarely examined and sometimes, even eschewed due to cultural considerations. Psychiatric manifestations of various infectious diseases, especially with a focus on Ebola Virus disease (EVD) and Zika Virus, are discussed in this commentary to illustrate the continued need of care after the resolution of the actual illness. Various infectious diseases have associations with mental illness, such as an increased risk of obsessive-compulsive disorders and Tourette syndrome in children with Group B streptococcal infection...
October 2017: Journal of Global Infectious Diseases
https://www.readbyqxmd.com/read/29300859/evidence-for-mother-to-child-transmission-of-zika-virus-through-breast-milk
#9
Gabriela M Blohm, John A Lednicky, Marilianna Márquez, Sarah K White, Julia C Loeb, Carlos A Pacheco, David J Nolan, Taylor Paisie, Marco Salemi, Alfonso J Rodríguez-Morales, J Glenn Morris, Juliet R C Pulliam, Alberto E Paniz-Mondolfi
Zikavirus (ZIKV) is an emerging viral pathogen that continues to spread throughout different regions of the world. Herein we report a case that provides further evidence that ZIKV transmission can occur through breastfeeding by providing a detailed clinical, genomic, and virological case-based description.
December 30, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29300166/a-systematic-review-of-zika-virus-hurdles-toward-vaccine-development-and-the-way-forward
#10
Azizul Haque, Faruk Berat Akçeşme, Anudeep B Pant
The Zika virus (ZIKV) epidemic has recently emerged as public health threat due to its teratogenic nature and association with the serious neurological condition Guillain-Barré syndrome (GBS). To date, no approved antiviral therapeutics or vaccines are available to confront ZIKV. In order to develop effective anti-ZIKV vaccines, improved animal models and a better understanding of immunological correlates of protection against ZIKV are required. In this paper, we discuss the recent progress in developing vaccines against ZIKV and the hurdles to overcome in making efficacious anti-Zika vaccines...
January 4, 2018: Antiviral Therapy
https://www.readbyqxmd.com/read/29299939/repurposing-drugs-for-use-against-zika-virus-infection
#11
J Devillers
Zika virus (ZIKV) is a mosquito-borne flavivirus for which there are no vaccines or specific therapeutics. To find drugs active on the virus is a complex, expensive and time-consuming process. The prospect of drug repurposing, which consists of finding new indications for existing drugs, is an interesting alternative to expedite drug development for specific diseases. In theory, drug repurposing is also able to respond much more rapidly to a crisis than a classical drug discovery process. Consequently, the methodology is attractive for vector-borne diseases that can emerge or re-emerge worldwide with the risk to become pandemic quickly...
January 4, 2018: SAR and QSAR in Environmental Research
https://www.readbyqxmd.com/read/29298885/recombinant-chimpanzee-adenovirus-vaccine-adc7-m-e-protects-against-zika-virus-infection-and-testis-damage
#12
Kun Xu, Yufeng Song, Lianpan Dai, Yongli Zhang, Xuancheng Lu, Yijia Xie, Hangjie Zhang, Tao Cheng, Qihui Wang, Qingrui Huang, Yuhai Bi, William J Liu, Wenjun Liu, Xiangdong Li, Chuan Qin, Yi Shi, Jinghua Yan, Dongming Zhou, George F Gao
The recent outbreak of Zika virus (ZIKV) has emerged as a global health concern. ZIKV can persist in human semen and be transmitted by sexual contact, as well as by mosquitos as seen for classical arboviruses. We and others have previously demonstrated that ZIKV infection leads to testis damage and infertility in mouse models. So far, no prophylactics or therapeutics are available, therefore, vaccine development is urgently demanded. Recombinant chimpanzee adenovirus has been explored as the preferred vaccine vector for many pathogens due to the low pre-existing immunity against the vector among the human population...
January 3, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29297281/suggested-mechanisms-for-zika-virus-causing-microcephaly-what-do-the-genomes-tell-us
#13
Se-Ran Jun, Trudy M Wassenaar, Visanu Wanchai, Preecha Patumcharoenpol, Intawat Nookaew, David W Ussery
BACKGROUND: Zika virus (ZIKV) is an emerging human pathogen. Since its arrival in the Western hemisphere, from Africa via Asia, it has become a serious threat to pregnant women, causing microcephaly and other neuropathies in developing fetuses. The mechanisms behind these teratogenic effects are unknown, although epidemiological evidence suggests that microcephaly is not associated with the original, African lineage of ZIKV. The sequences of 196 published ZIKV genomes were used to assess whether recently proposed mechanistic explanations for microcephaly are supported by molecular level changes that may have increased its virulence since the virus left Africa...
December 28, 2017: BMC Bioinformatics
https://www.readbyqxmd.com/read/29295477/recombinant-zika-ns1-protein-secreted-from-vero-cells-is-efficient-for-inducing-production-of-immune-serum-directed-against-ns1-dimer
#14
Wildriss Viranaicken, Alexia Ndebo, Sandra Bos, Philippe Souque, Gilles Gadea, Chaker El-Kalamouni, Pascale Krejbich-Trotot, Pierre Charneau, Philippe Desprès, Marjolaine Roche
Zika virus (ZIKV) is a mosquito-borne flavivirus that recently emerged in the South Pacific, Americas, and Caribbean islands, where the larger epidemics were documented. ZIKV infection in humans is responsible for neurological disorders and microcephaly. Flavivirus NS1 is a non-structural glycoprotein that is expressed on the cell surface and secreted as a hexameric lipoprotein particle. Intracellular NS1 exists as a dimer that is required for viral replication, whereas the secreted NS1 hexamer interacts with host factors, leading to pathophysiological conditions...
December 23, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29288700/erythrosin-b-is-a-potent-and-broad-spectrum-orthosteric-inhibitor-of-the-flavivirus-ns2b-ns3-protease
#15
Zhong Li, Srilatha Sakamuru, Ruili Huang, Matthew Brecher, Cheri A Koetzner, Jing Zhang, Haiying Chen, Cheng-Feng Qin, Qing-Yu Zhang, Jia Zhou, Laura D Kramer, Menghang Xia, Hongmin Li
Many flaviviruses, such as Zika virus (ZIKV), Dengue virus (DENV1-4) and yellow fever virus (YFV), are significant human pathogens. Infection with ZIKV, an emerging mosquito-borne flavivirus, is associated with increased risk of microcephaly in newborns and Guillain-Barré syndrome and other complications in adults. Currently, specific therapy does not exist for any flavivirus infections. In this study, we found that erythrosin B, an FDA-approved food additive, is a potent inhibitor for flaviviruses, including ZIKV and DENV2...
December 27, 2017: Antiviral Research
https://www.readbyqxmd.com/read/29288699/development-of-a-replicon-cell-line-based-high-throughput-antiviral-assay-for-screening-inhibitors-of-zika-virus
#16
Jia-Qi Li, Cheng-Lin Deng, Dayong Gu, Xiao Li, Lei Shi, Jian'an He, Qiu-Yan Zhang, Bo Zhang, Han-Qing Ye
Zika virus (ZIKV) is an important emerging human pathogen associated with microcephaly, Guillain-Barré syndrome and meningoencephalitis. Developing rapid and reliable HTS assay is important for ZIKV drug discovery. Here, we constructed a dicistronic ZIKV replicon (ZIKV-Pac-Rluc-Rep) that contained the Renilla luciferase (Rluc) reporter gene separated from the puromycin N-acetyl-transferase (Pac) selectable marker by a short peptide cleavage site. A clonal replicon cell line stably expressing high level of ZIKV replicon was established by selection with puromycin...
December 27, 2017: Antiviral Research
https://www.readbyqxmd.com/read/29282144/family-level-variation-in-wolbachia-mediated-dengue-virus-blocking-in-aedes-aegypti
#17
Gerard Terradas, Scott L Allen, Stephen F Chenoweth, Elizabeth A McGraw
BACKGROUND: The mosquito vector Aedes aegypti is responsible for transmitting a range of arboviruses including dengue (DENV) and Zika (ZIKV). The global reach of these viruses is increasing due to an expansion of the mosquito's geographic range and increasing urbanization and human travel. Vector control remains the primary means for limiting these diseases. Wolbachia pipientis is an endosymbiotic bacterium of insects that has the ability to block the replication of pathogens, including flaviviruses such as DENV or ZIKV, inside the body of the vector...
December 28, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/29280428/african-and-asian-zika-virus-isolates-display-phenotypic-differences-both-in-vitro-and-in-vivo
#18
Darci R Smith, Thomas R Sprague, Bradley S Hollidge, Stephanie M Valdez, Susana L Padilla, Stephanie A Bellanca, Joseph W Golden, Susan R Coyne, David A Kulesh, Lynn Jean Miller, Andrew D Haddow, Jeff W Koehler, Gregory D Gromowski, Richard G Jarman, Maria Theresa P Alera, In-Kyu Yoon, Rome Buathong, Robert G Lowen, Christopher D Kane, Timothy D Minogue, Sina Bavari, Robert B Tesh, Scott C Weaver, Kenneth J Linthicum, Margaret L Pitt, Farooq Nasar
Zika virus (ZIKV) is a mosquito-borne member of the genus Flavivirus that has emerged since 2007 to cause outbreaks in Africa, Asia, Oceania, and most recently, in the Americas. Here, we used an isolate history as well as genetic and phylogenetic analyses to characterize three low-passage isolates representing African (ArD 41525) and Asian (CPC-0740, SV0127-14) lineages to investigate the potential phenotypic differences in vitro and in vivo. The African isolate displayed a large plaque phenotype (∼3-4 mm) on Vero and HEK-293 cells, whereas the Asian isolates either exhibited a small plaque phenotype (∼1-2 mm) or did not produce any plaques...
December 26, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29276699/zika-virus-an-emerging-global-health-threat
#19
REVIEW
Rahul Mittal, Desiree Nguyen, Luca H Debs, Amit P Patel, George Liu, Vasanti M Jhaveri, Sae-In S Kay, Jeenu Mittal, Emmalee S Bandstra, Ramzi T Younis, Prem Chapagain, Dushyantha T Jayaweera, Xue Zhong Liu
Zika virus (ZIKV) is an emerging healthcare threat. The presence of the mosquito Aedes species across South and Central America in combination with complementary climates have incited an epidemic of locally transmitted cases of ZIKV infection in Brazil. As one of the most significant current public health concerns in the Americas, ZIKV epidemic has been a cause of alarm due to its known and unknown complications. At this point, there has been a clear association between ZIKV infection and severe clinical manifestations in both adults and neonates, including but not limited to neurological deficits such as Guillain-Barré syndrome (GBS) and microcephaly, respectively...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/29274845/discovery-of-a-non-nucleoside-rna-polymerase-inhibitor-for-blocking-zika-virus-replication-through-in-silico-screening
#20
Aryamav Pattnaik, Nicholas Palermo, Bikash R Sahoo, Zhe Yuan, Duoyi Hu, Arun S Annamalai, Hiep L X Vu, Ignacio Correas, Pavan Kumar Prathipati, Christopher J Destache, Qingsheng Li, Fernando A Osorio, Asit K Pattnaik, Shi-Hua Xiang
Zika virus (ZIKV), an emerging arbovirus, has become a major human health concern globally due to its association with congenital abnormalities and neurological diseases. Licensed vaccines or antivirals against ZIKV are currently unavailable. Here, by employing a structure-based approach targeting the ZIKV RNA-dependent RNA polymerase (RdRp), we conducted in silico screening of a library of 100,000 small molecules and tested the top ten lead compounds for their ability to inhibit the virus replication in cell-based in vitro assays...
December 21, 2017: Antiviral Research
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