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Dengue review

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https://www.readbyqxmd.com/read/28545598/indonesian-dengue-burden-estimates-review-of-evidence-by-an-expert-panel
#1
T Y M Wahyono, J Nealon, S Beucher, A Prayitno, A Moureau, S Nawawi, H Thabrany, M Nadjib
Routine, passive surveillance systems tend to underestimate the burden of communicable diseases such as dengue. When empirical methods are unavailable, complimentary opinion-based or extrapolative methods have been employed. Here, an expert Delphi panel estimated the proportion of dengue captured by the Indonesian surveillance system, and associated health system parameters. Following presentation of medical and epidemiological data and subsequent discussions, the panel made iterative estimates from which expansion factors (EF), the ratio of total:reported cases, were calculated...
May 26, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28533490/is-folfoxiri-alone-or-combined-with-targeted-therapy-administered-as-first-line-treatment-a-reasonable-choice-for-most-patients-with-mcrc-systematic-review-and-network-meta-analysis
#2
Mingyi Zhou, Ping Yu, Dengue Bilibili Hernick Davin, Yanrong Li, Yuanhe Wang, Lingyu Fu, Jingdong Zhang
Whether the intensive administration of folinic acid, 5-fluorouracil, oxaliplatin and irinotecan (FOLFOXIRI) alone or combined with target therapy as first-line treatment could improve the prognosis of metastatic colorectal cancer (mCRC) patients is controversial. PubMed, the Cochrane Collaboration Central Register of Controlled Clinical Trials, Cochrane Systematic Reviews, ClinicalTrials.gov, the databases of conferences were queried to identify RCTs evaluating the efficacies and toxicities of intensive therapies used for first-line treatment of mCRC patients...
May 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28525510/zika-virus-obstetric-and-pediatric-anesthesia-considerations
#3
Jacqueline L Tutiven, Benjamin T Pruden, James S Banks, Mario Stevenson, David J Birnbach
As of November 2016, the Florida Department of Health (FDH) and the Centers for Disease Control and Prevention have confirmed more than 4000 travel-related Zika virus (ZIKV) infections in the United States with >700 of those in Florida. There have been 139 cases of locally acquired infection, all occurring in Miami, Florida. Within the US territories (eg, Puerto Rico, US Virgin Islands), >30,000 cases of ZIKV infection have been reported. The projected number of individuals at risk for ZIKV infection in the Caribbean and Latin America approximates 5 million...
June 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28503297/cardiovascular-involvement-and-manifestations-of-systemic-chikungunya-virus-infection-a-systematic-review
#4
María Fernanda Alvarez, Adrián Bolívar-Mejía, Alfonso J Rodriguez-Morales, Eduardo Ramirez-Vallejo
BACKGROUND: In the last three years, chikungunya virus disease has been spreading, affecting particularly the Americas, producing more than two million cases. In this setting, not only new disease-related epidemiological patterns have been found, but also new clinical findings have been reported by different research groups. These include findings on the cardiovascular system, including clinical, electrocardiographic and echocardiographic alterations. METHODS: We performed a systematic review looking for reports about cardiovascular compromise during chikungunya disease...
2017: F1000Research
https://www.readbyqxmd.com/read/28495402/associations-of-tumor-necrosis-factor-%C3%AE-308-polymorphism-with-dengue-infection-a-systematic-review-and-meta-analysis
#5
REVIEW
Noel Pabalan, Suwit Chaisri, Sompong Tabunhan, Mayuri Tarasuk, Hamdi Jarjanazi, Theodore Steiner
Inconsistency of reported associations between the tumor necrosis factor-alpha-308 (TNFα-308) polymorphism (rs1800629) and dengue virus infection prompted a meta-analysis, to obtain more precise estimates. A literature search yielded 14 case-control studies. We calculated pooled odds ratios (OR) and 95% confidence intervals in three groups according to severity, dengue fever (DF), dengue hemorrhagic fever (DHF) and dengue (DEN) using standard genetic models. Pooled ORs were subjected to modifier treatment where re-analysis was confined to Hardy-Weinberg compliant (HWC) studies...
May 8, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28487557/humoral-cross-reactivity-between-zika-and-dengue-viruses-implications-for-protection-and-pathology
#6
REVIEW
Lalita Priyamvada, William Hudson, Rafi Ahmed, Jens Wrammert
Zika virus (ZIKV) is a re-emerging mosquito-borne flavivirus that has recently caused extensive outbreaks in Central and South America and the Caribbean. Given its association with Guillain-Barré syndrome in adults and neurological and ocular malformities in neonates, ZIKV has become a pathogen of significant public health concern worldwide. ZIKV shares a considerable degree of genetic identity and structural homology with other flaviviruses, including dengue virus (DENV). In particular, the surface glycoprotein envelope (E), which is involved in viral fusion and entry and is therefore a chief target for neutralizing antibody responses, contains regions that are highly conserved between the two viruses...
May 10, 2017: Emerging Microbes & Infections
https://www.readbyqxmd.com/read/28486135/recent-advances-in-human-flavivirus-vaccines
#7
REVIEW
Iris Scherwitzl, Juthathip Mongkolsapaja, Gavin Screaton
Dengue (DENV), West Nile (WNV) and Zika (ZIKV) viruses are mosquito-transmitted flaviviruses that cause thousands of human deaths and millions of illnesses each year. In the last decades, epidemic outbreaks of all three flaviviruses emerged and caused a major health and economical problem in many parts of the world. The increasing and expanding burden of flaviviruses has highlighted the need for effective human vaccines against all three viruses. This review provides an overview of the recent progress in DENV, WNV and ZIKV vaccines development with specific focus on candidates in human clinical development...
May 6, 2017: Current Opinion in Virology
https://www.readbyqxmd.com/read/28486041/role-of-mast-cells-in-dengue-virus-pathogenesis
#8
Berlin Londono-Renteria, Julio C Marinez-Angarita, Andrea Troupin, Tonya M Colpitts
Dengue is currently regarded as the most common arthropod-borne viral disease in tropical and subtropical areas, with an estimated 50-100 million infections occurring each year. Nearly all patients experience a self-limiting clinical course; however, the illness ranges from undifferentiated fever to severe hemorrhagic fever with or without shock syndrome complications. There are several immune cells associated with the pathogenesis of dengue virus (DENV) infection and systemic spread, including dendritic cells, macrophages, and mast cells (MCs)...
May 9, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28480779/use-of-human-immunoglobulins-as-an-anti-infective-treatment-the-experience-so-far-and-their-possible-re-emerging-role
#9
Jordi Bozzo, Juan I Jorquera
Pooled human immunoglobulins (IGs) are prepared from plasma obtained from healthy donors as a concentrated antibody-containing solution. In addition, high-titer IGs (hyperimmune) against a specific pathogen can be obtained from vaccinated or convalescing donors. Currently, IGs can be used for the treatment of a variety of infections for which no specific therapy exists or that remain difficult to treat. Moreover, the recent pathogen outbreaks for which there is no approved treatment have renewed attention to the role of convalescent plasma and IGs...
May 15, 2017: Expert Review of Anti-infective Therapy
https://www.readbyqxmd.com/read/28479213/original-antigenic-sin-a-comprehensive-review
#10
REVIEW
Anup Vatti, Diana M Monsalve, Yovana Pacheco, Christopher Chang, Juan-Manuel Anaya, M Eric Gershwin
The concept of "original antigenic sin" was first proposed by Thomas Francis, Jr. in 1960. This phenomenon has the potential to rewrite what we understand about how the immune system responds to infections and its mechanistic implications on how vaccines should be designed. Antigenic sin has been demonstrated to occur in several infectious diseases in both animals and humans, including human influenza infection and dengue fever. The basis of "original antigenic sin" requires immunological memory, and our immune system ability to autocorrect...
May 5, 2017: Journal of Autoimmunity
https://www.readbyqxmd.com/read/28473729/broad-spectrum-agents-for-flaviviral-infections-dengue-zika-and-beyond
#11
REVIEW
Veaceslav Boldescu, Mira A M Behnam, Nikos Vasilakis, Christian D Klein
Infections with flaviviruses, such as dengue, West Nile virus and the recently re-emerging Zika virus, are an increasing and probably lasting global risk. This Review summarizes and comments on the opportunities for broad-spectrum agents that are active against multiple flaviviruses. Broad-spectrum activity is particularly desirable to prepare for the next flaviviral epidemic, which could emerge from as-yet unknown or neglected viruses. Potential molecular targets for broad-spectrum antiflaviviral compounds include viral proteins, such as the viral protease or polymerase, and host targets that are exploited by these viruses during entry and replication, including α-glucosidase and proteins involved in nucleoside biosynthesis...
May 5, 2017: Nature Reviews. Drug Discovery
https://www.readbyqxmd.com/read/28471403/pathogenesis-and-inhibition-of-flaviviruses-from-a-carbohydrate-perspective
#12
REVIEW
So Young Kim, Bing Li, Robert J Linhardt
Flaviviruses are enveloped, positive single stranded ribonucleic acid (RNA) viruses with various routes of transmission. While the type and severity of symptoms caused by pathogenic flaviviruses vary from hemorrhagic fever to fetal abnormalities, their general mechanism of host cell entry is similar. All pathogenic flaviviruses, such as dengue virus, yellow fever virus, West Nile virus, Japanese encephalitis virus, and Zika virus, bind to glycosaminglycans (GAGs) through the putative GAG binding sites within their envelope proteins to gain access to the surface of host cells...
May 4, 2017: Pharmaceuticals
https://www.readbyqxmd.com/read/28450651/the-immunogenicity-and-safety-of-cyd-tetravalent-dengue-vaccine-cyd-tdv-in-children-and-adolescents-a-systematic-review
#13
Raksheeth Agarwal, Mardiastuti H Wahid, Oliver E Yausep, Sharon H Angel, Angga W Lokeswara
AIM: to assess the immunogenicity and safety of CYD-tetravalent dengue vaccine (CYD-TDV) in children. METHODS: comprehensive literature searches were conducted on various databases. Randomized-controlled trials on children with CYD-TDV as intervention were selected based on inclusion and exclusion criteria. Data extracted from selected trials included safety of vaccine and immunogenicity in terms of Geometric Mean Titres (GMT) of antibodies. RESULTS:   six clinical trials were selected based on preset criteria...
January 2017: Acta Medica Indonesiana
https://www.readbyqxmd.com/read/28446670/collateral-damage-during-dengue-virus-infection-making-sense-of-dna-by-cgas
#14
Sebastian Aguirre, Ana Fernandez-Sesma
Early sensing of viral components or infection-induced tissue damage, is a prerequisite for the successful control of pathogenic viruses by the host innate immune system. Recent results from our laboratory show how immune cells use the DNA sensing machinery to detect intracellular damage generated early during infection with an RNA virus, namely dengue virus (DENV). Conversely, we found that DENV can efficiently dismantle this sensing mechanism by targeting the cyclic GMP-AMP synthase (cGAS) and the stimulator of interferon gene (STING); two crucial host factors involved in DNA detection and type I interferon (IFN) production...
April 26, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28442105/towards-development-of-a-universal-dengue-vaccine-how-close-are-we
#15
REVIEW
Ee Leen Pang, Hwei-San Loh
Dengue has been ranked as one of the top emerging diseases in Asia and Latin America. Current epidemiological data may not even reflect the true burden of disease due to under-reported figures. Vector control programmes have failed to contain the disease and worst of all, no specific treatment is available at the moment. Thereby, this pushes the demand for a dengue vaccine as a long-term protective approach. Despite there are numerous vaccine candidates ahead, they could be held back by different aspects in promoting vaccine implementation...
March 2017: Asian Pacific Journal of Tropical Medicine
https://www.readbyqxmd.com/read/28441781/dengue-virus-non-structural-protein-5
#16
REVIEW
Abbas El Sahili, Julien Lescar
The World Health Organization estimates that the yearly number of dengue cases averages 390 million. This mosquito-borne virus disease is endemic in over 100 countries and will probably continue spreading, given the observed trend in global warming. So far, there is no antiviral drug available against dengue, but a vaccine has been recently marketed. Dengue virus also serves as a prototype for the study of other pathogenic flaviviruses that are emerging, like West Nile virus and Zika virus. Upon viral entry into the host cell and fusion of the viral lipid membrane with the endosomal membrane, the viral RNA is released and expressed as a polyprotein, that is then matured into three structural and seven non-structural (NS) proteins...
April 24, 2017: Viruses
https://www.readbyqxmd.com/read/28432975/vaccination-strategies-against-zika-virus
#17
REVIEW
Estefania Fernandez, Michael S Diamond
The epidemic emergence of Zika virus (ZIKV) in 2015-2016 has been associated with congenital malformations and neurological sequela. Current efforts to develop a ZIKV vaccine build on technologies that successfully reduced infection or disease burden against closely related flaviviruses or other RNA viruses. Subunit-based (DNA plasmid and modified mRNA), viral vectored (adeno- and measles viruses) and inactivated viral vaccines are already advancing to clinical trials in humans after successful mouse and non-human primate studies...
April 19, 2017: Current Opinion in Virology
https://www.readbyqxmd.com/read/28429036/a-review-of-zika-virus-infections-in-pregnancy-and-implications-for-antenatal-care-in-singapore
#18
Harvard Zhenjia Lin, Paul Anantharajah Tambyah, Eu Leong Yong, Arijit Biswas, Shiao-Yng Chan
Given the consensus that there is a causal relationship between Zika virus (ZIKV) infection in pregnancy and congenital Zika syndrome (CZS), clinicians must be prepared to manage affected patients despite the numerous gaps in current knowledge. The clinical course in pregnancy appears similar to that in non-pregnant women, although viraemia may be prolonged. ZIKV infection can be diagnosed by serum and urine reverse transcription-polymerase chain reaction, but commercially available serological tests are currently unreliable in dengue-endemic regions...
April 2017: Singapore Medical Journal
https://www.readbyqxmd.com/read/28426114/infectious-diseases-and-migrant-worker-health-in-singapore-a-receiving-country-s-perspective
#19
Sapna P Sadarangani, Poh Lian Lim, Shawn Vasoo
Background.: Approximately 1.4 million migrant workers reside in Singapore, presenting unique infectious disease challenges to both migrants and Singapore. Methods.: A Pubmed, MEDLINE (Ovid), EBSCO Host (Global Health) and Google Scholar search was performed for both peer, non-peer reviewed articles and reports relevant to migrant health in Singapore, published between 1 January 1989 and 1 September 2016. Additional studies were identified from citations within searched articles...
July 1, 2017: Journal of Travel Medicine
https://www.readbyqxmd.com/read/28421048/functional-information-stored-in-the-conserved-structural-rna-domains-of-flavivirus-genomes
#20
REVIEW
Alba Fernández-Sanlés, Pablo Ríos-Marco, Cristina Romero-López, Alfredo Berzal-Herranz
The genus Flavivirus comprises a large number of small, positive-sense single-stranded, RNA viruses able to replicate in the cytoplasm of certain arthropod and/or vertebrate host cells. The genus, which has some 70 member species, includes a number of emerging and re-emerging pathogens responsible for outbreaks of human disease around the world, such as the West Nile, dengue, Zika, yellow fever, Japanese encephalitis, St. Louis encephalitis, and tick-borne encephalitis viruses. Like other RNA viruses, flaviviruses have a compact RNA genome that efficiently stores all the information required for the completion of the infectious cycle...
2017: Frontiers in Microbiology
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