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https://www.readbyqxmd.com/read/28324177/a-detailed-analysis-of-codon-usage-patterns-and-influencing-factors-in-zika-virus
#1
Niraj K Singh, Anuj Tyagi
Recent outbreaks of Zika virus (ZIKV) in Africa, Latin America, Europe, and Southeast Asia have resulted in serious health concerns. To understand more about evolution and transmission of ZIKV, detailed codon usage analysis was performed for all available strains. A high effective number of codons (ENC) value indicated the presence of low codon usage bias in ZIKV. The effect of mutational pressure on codon usage bias was confirmed by significant correlations between nucleotide compositions at third codon positions and ENCs...
March 21, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28323468/potential-high-risk-areas-for-zika-virus-transmission-in-the-contiguous-united-states
#2
Enbal Shacham, Erik J Nelson, Daniel F Hoft, Mario Schootman, Alexander Garza
OBJECTIVES: To understand where transmission of Zika virus has the highest likelihood to occur in the contiguous United States with regard to its transmission both sexually and via Aedes aegypti mosquito bites. METHODS: We evaluated the 2 routes of transmission risk with predictors of sexually transmitted infections (percentage women of childbearing age, birthrate, gonorrhea and chlamydia rates, concentrated disadvantage) as a surrogate for unprotected sexual activity and the demographic distribution of the A...
March 21, 2017: American Journal of Public Health
https://www.readbyqxmd.com/read/28320169/probable-zika-virus-associated-guillain-barr%C3%A3-syndrome-challenges-with-clinico-laboratory-diagnosis
#3
Eliza Miller, Zoe Becker, Daniel Shalev, Christopher T Lee, Comana Cioroiu, Kiran Thakur
A 55year old woman in New York City presented in May 2016 with progressive weakness, ataxia, paresthesia, and areflexia, shortly after returning from the Dominican Republic. Lumbar puncture revealed cytoalbuminological dissociation. Due to her recent travel, Zika-associated Guillain Barré syndrome (GBS) was suspected and she underwent evaluation for recent flavivirus exposure. Zika virus RNA was not detected in serum, but Zika virus immunoglobulin M (IgM) was detected in both serum and cerebrospinal fluid...
April 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28319995/clinical-trials-of-therapeutics-for-the-prevention-of-congenital-zika-virus-disease-challenges-and-potential-solutions
#4
Alex P Salam, Amanda Rojek, Jake Dunning, Peter W Horby
Zika virus (ZIKV) infection in pregnancy is associated with adverse fetal outcomes, such as microcephaly and other congenital malformations. No therapeutic options are available to pregnant women with ZIKV infection to prevent these effects. Drug trials in pregnancy raise several scientific, ethical, and logistical challenges, which are compounded further in ZIKV because of limited knowledge of the disease pathophysiology and a product development pipeline in its infancy. We evaluate the major challenges in choosing therapeutics to prevent congenital ZIKV disease and conducting clinical trials of these treatments, with a focus on preventing congenital central nervous system malformations...
March 21, 2017: Annals of Internal Medicine
https://www.readbyqxmd.com/read/28319244/congenital-zika-virus-infection-beyond-neonatal-microcephaly-reply
#5
Adriana Suely de Oliveira Melo, Leila Chimelli, Amilcar Tanuri
No abstract text is available yet for this article.
March 20, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/28319237/congenital-zika-virus-infection-beyond-neonatal-microcephaly
#6
Marcio Leyser, Osvaldo J M Nascimento
No abstract text is available yet for this article.
March 20, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/28319087/erratum-model-based-projections-of-zika-virus-infections-in-childbearing-women-in-the-americas
#7
T Alex Perkins, Amir S Siraj, Corrine W Ruktanonchai, Moritz U G Kraemer, Andrew J Tatem
No abstract text is available yet for this article.
March 20, 2017: Nature Microbiology
https://www.readbyqxmd.com/read/28318966/structural-biology-of-the-zika-virus
#8
REVIEW
Yi Shi, George F Gao
Zika virus (ZIKV), a Flaviviridae family member transmitted to humans by mosquitoes, has emerged as a major health concern. ZIKV infections can cause serious neurological complications in adults, and infection in pregnant women can cause congenital malformations, including fetal and newborn microcephaly. In response to this emerging concern, the structural virology field was quick to explore the features of ZIKV. These efforts have provided significant insights into ZIKV pathogenesis, and have identified targets for drug design...
March 15, 2017: Trends in Biochemical Sciences
https://www.readbyqxmd.com/read/28318467/zika-virus-disease-response-protocol
#9
Beuy Joob, Viroj Wiwanitkit
No abstract text is available yet for this article.
March 20, 2017: Disaster Medicine and Public Health Preparedness
https://www.readbyqxmd.com/read/28318359/zika-virus-and-eye
#10
Rupesh Agrawal, Hnin Hnin Oo, Praveen Kumar Balne, Lisa Ng, Louis Tong, Yee Sin Leo
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...
March 20, 2017: Ocular Immunology and Inflammation
https://www.readbyqxmd.com/read/28318141/zika-virus-induced-cellular-remodeling
#11
Evan D Rossignol, Kristen N Peters, John H Connor, Esther Bullitt
Zika virus (ZIKV) has been associated with morbidities such as Guillain-Barré, infant microcephaly, and ocular disease. The spread of this positive-sense, single-stranded RNA virus and its growing public health threat underscore gaps in our understanding of basic ZIKV virology. To advance knowledge of the virus replication cycle within mammalian cells, we use serial section three-dimensional electron tomography to demonstrate the widespread remodeling of intracellular membranes upon infection with ZIKV. We report extensive structural rearrangements of the endoplasmic reticulum and reveal stages of the ZIKV viral replication cycle...
March 20, 2017: Cellular Microbiology
https://www.readbyqxmd.com/read/28317856/a-smartphone-based-diagnostic-platform-for-rapid-detection-of-zika-chikungunya-and-dengue-viruses
#12
Aashish Priye, Sara W Bird, Yooli K Light, Cameron S Ball, Oscar A Negrete, Robert J Meagher
Current multiplexed diagnostics for Zika, dengue, and chikungunya viruses are situated outside the intersection of affordability, high performance, and suitability for use at the point-of-care in resource-limited settings. Consequently, insufficient diagnostic capabilities are a key limitation facing current Zika outbreak management strategies. Here we demonstrate highly sensitive and specific detection of Zika, chikungunya, and dengue viruses by coupling reverse-transcription loop-mediated isothermal amplification (RT-LAMP) with our recently developed quenching of unincorporated amplification signal reporters (QUASR) technique...
March 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28316955/commentary-teratogenic-effects-of-the-zika-virus-and-the-role-of-the-placenta
#13
COMMENT
Shu Yuan, Qin Luo, Zhong-Wei Zhang, Zi-Lin Li
No abstract text is available yet for this article.
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28316896/vector-competence-of-anopheles-and-culex-mosquitoes-for-zika-virus
#14
Brittany L Dodson, Jason L Rasgon
Zika virus is a newly emergent mosquito-borne flavivirus that has caused recent large outbreaks in the new world, leading to dramatic increases in serious disease pathology including Guillain-Barre syndrome, newborn microcephaly, and infant brain damage. Although Aedes mosquitoes are thought to be the primary mosquito species driving infection, the virus has been isolated from dozens of mosquito species, including Culex and Anopheles species, and we lack a thorough understanding of which mosquito species to target for vector control...
2017: PeerJ
https://www.readbyqxmd.com/read/28315708/2016-international-meeting-of-the-global-virus-network
#15
REVIEW
Ramesh Akkina, Heinz Ellerbrok, William Hall, Hideki Hasagawa, Yasushi Kawaguchi, Harold Kleanthous, Edward McSweegan, Natalia Mercer, Victor Romanowski, Hirofumi Sawa, Anders Vahlne
The Global Virus Network (GVN) was established in 2011 in order to strengthen research and responses to current viral causes of human disease and to prepare against new viral pandemic threats. There are now 38 GVN Centers of Excellence and 6 Affiliate laboratories in 24 countries. GVN scientists meet annually to learn about each other's current research, address collaborative priorities and plan future programs. The 2016 meeting was held from October 23-25 in Hokkaido, Japan, in partnership with the Japanese Society for Virology, the National Institute of Infectious Diseases of Japan and the Research Center for Zoonosis Control of Hokkaido University...
March 15, 2017: Antiviral Research
https://www.readbyqxmd.com/read/28315476/comparative-analysis-of-protein-evolution-in-the-genome-of-pre-epidemic-and-epidemic-zika-virus
#16
Arunachalam Ramaiah, Lei Dai, Deisy Contreras, Sanjeev Sinha, Ren Sun, Vaithilingaraja Arumugaswami
Zika virus (ZIKV) causes microcephaly in congenital infection, neurological disorders, and poor pregnancy outcome and no vaccine is available for use in humans or approved. Although ZIKV was first discovered in 1947, the exact mechanism of virus replication and pathogenesis remains unknown. Recent outbreaks of Zika virus in the Americas clearly suggest a human-mosquito cycle or urban cycle of transmission. Understanding the conserved and adaptive features in the evolution of ZIKV genome will provide a hint on the mechanism of ZIKV adaptation to a new cycle of transmission...
March 14, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28314593/25-hydroxycholesterol-protects-host-against-zika-virus-infection-and-its-associated-microcephaly-in-a-mouse-model
#17
Chunfeng Li, Yong-Qiang Deng, Shuo Wang, Feng Ma, Roghiyh Aliyari, Xing-Yao Huang, Na-Na Zhang, Momoko Watanabe, Hao-Long Dong, Ping Liu, Xiao-Feng Li, Qing Ye, Min Tian, Shuai Hong, Junwan Fan, Hui Zhao, Lili Li, Neda Vishlaghi, Jessie E Buth, Connie Au, Ying Liu, Ning Lu, Peishuang Du, F Xiao-Feng Qin, Bo Zhang, Danyang Gong, Xinghong Dai, Ren Sun, Bennett G Novitch, Zhiheng Xu, Cheng-Feng Qin, Genhong Cheng
Zika virus (ZIKV) has become a public health threat due to its global transmission and link to severe congenital disorders. The host immune responses to ZIKV infection have not been fully elucidated, and effective therapeutics are not currently available. Herein, we demonstrated that cholesterol-25-hydroxylase (CH25H) was induced in response to ZIKV infection and that its enzymatic product, 25-hydroxycholesterol (25HC), was a critical mediator of host protection against ZIKV. Synthetic 25HC addition inhibited ZIKV infection in vitro by blocking viral entry, and treatment with 25HC reduced viremia and conferred protection against ZIKV in mice and rhesus macaques...
March 11, 2017: Immunity
https://www.readbyqxmd.com/read/28306183/flavivirus-cross-reactivity-in-serological-tests-and-guillain-barr%C3%A3-syndrome-in-a-hematopoietic-stem-cell-transplant-patient-a-case-report
#18
Sonia M Raboni, Carmem Bonfim, Bernardo M Almeida, Camila Zanluca, Andrea C Koishi, Paula R V P Rodrigues, Claudia K Kay, Lisandro L Ribeiro, Rosana H Scola, Claudia N Duarte Dos Santos
Serological diagnosis of flavivirus infection is a challenge, particularly in the context of a disease associated with immune response enhancement in a transplant patient, where aspects such as previous flavivirus infections may be involved with the outcome. We report a case of a pediatric patient who developed Guillain-Barré syndrome (GBS) after matched-unrelated hematopoietic stem cell transplantation (HSCT). The patient lives in a Brazilian region that is experiencing an epidemic of Zika virus (ZIKV) and dengue virus (DENV)...
March 17, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/28303999/case-reports-and-their-importance-in-medical-literature
#19
Syed Hasan Danish, Zawwar Reza, Abdul Ahad Sohail
It is important to appreciate how case reports have paved the way for modern research. They are still largely considered the first line of evidence. Indeed global endemics such as HIV and Zika Virus have been traced back to initial case reports. Strictly speaking; case reports are anecdotes - a factual story telling about nature's own experiment. Case reports can be characterized by two huge advantages, their ability to present novel, rare cases in a manner that can lead to the expansion in research of such cases and their use in generating new, innovative hypothesis that can be used to direct further research...
March 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28302630/prevalence-of-microcephaly-in-eight-south-eastern-and-midwestern-brazilian-neonatal-intensive-care-units-2011-2015
#20
Maria Clara de Magalhães-Barbosa, Arnaldo Prata-Barbosa, Jaqueline Rodrigues Robaina, Carlos Eduardo Raymundo, Fernanda Lima-Setta, Antonio José Ledo Alves da Cunha
OBJECTIVE: To describe the prevalence of microcephaly in infants admitted to the neonatal intensive care units (NICUs) in eight private hospitals in south-eastern and midwestern Brazil, from 2011 to 2015. DESIGN: Observational, cross-sectional study in a cohort of neonates. SETTING: Eight private NICUs situated in the cities of Rio de Janeiro (RJ), São Paulo (SP) and Federal District of Brasilia (FDB). PATIENTS: Neonates up to 7 days of age and >23 weeks of gestational age...
March 16, 2017: Archives of Disease in Childhood
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