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https://www.readbyqxmd.com/read/28445846/a-sharp-robust-and-quantitative-method-by-liquid-chromatography-tandem-mass-spectrometry-for-the-measurement-of-ead-for-acute-radiation-syndrome-and-its-application
#1
Yiwei Zhang, Jian Li, Zhiyun Meng, Xiaoxia Zhu, Hui Gan, Ruolan Gu, Zhuona Wu, Ying Zheng, Jinbin Wei, Guifang Dou
17-Ethinyl-3,17-dihydroxyandrost-5-ene (EAD) is an agent designed for the treatment of acute radiation syndrome (ARS). Given its vital role played in the prevention and mitigation of ARS, the development of a sharp, sensitive and robust liquid chromatography tandem mass spectrometry (LC-MS/MS) method to monitor the metabolism of EAD in vivo was crucial. A new method was constructed and validated for the determination of EAD with the internal standard of androst-5-ene-3β,17β-diol (5-AED). The blood samples were precipitated with methanol, centrifuged, from which the supernatant was separated on UPLC with C18 column and eluted in gradient with acetonitrile and Milli-Q water both containing 0...
April 15, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28444003/species-abundance-and-temporal-variation-of-arbovirus-vectors-in-brownsville-texas
#2
Krithika Srinivasan, Beatriz Tapia, Arturo Rodriguez, Robert Wood, Jennifer J Salinas
The recent outbreaks of the dengue fever and West Nile viruses and the looming threats of the Zika and chikungunya viruses highlight the importance of establishing effective, proactive arboviral surveillance in communities at high risk of transmission, such as those on the Texas-Mexico border. Currently, there are no approved human vaccines available for these mosquito-borne diseases, so entomological control and case management are the only known methods for decreasing disease incidence. The principal vectors, which include Culex quinquefasciatus, Aedes aegypti, and Ae...
April 20, 2017: Revista Panamericana de Salud Pública, Pan American Journal of Public Health
https://www.readbyqxmd.com/read/28442754/vector-competence-and-transovarial-transmission-of-two-aedes-aegypti-strains-to-zika-virus
#3
Chun-Xiao Li, Xiao-Xia Guo, Yong-Qiang Deng, Dan Xing, Ai-Juan Sun, Qin-Mei Liu, Qun Wu, Yan-de Dong, Ying-Mei Zhang, Heng-Duan Zhang, Wu-Chun Cao, Cheng-Feng Qin, Tong-Yan Zhao
Zika virus (ZIKV) has become a serious threat to global health since the outbreak in Brazil in 2015. Additional Chinese cases have continuously been reported since the first case of laboratory-confirmed ZIKV infection in China on 6 February 2016. Aedes aegypti is the most important vector for ZIKV. This study shows that two strains from China exhibit high levels of midgut infection and highly disseminated infection of salivary glands and ovaries. Both strains can transmit ZIKV to infant mice bitten by infectious mosquitoes...
April 26, 2017: Emerging Microbes & Infections
https://www.readbyqxmd.com/read/28442104/zika-virus-infection-and-its-emerging-trends-in-southeast-asia
#4
REVIEW
Ahmad Ruzain Salehuddin, Haszianaliza Haslan, Norshalizah Mamikutty, Nurul Hannim Zaidun, Mohamad Fairuz Azmi, Mohamad Mu'izuddin Senin, Syed Baharom Syed Ahmad Fuad, Zar Chi Thent
Zika virus is a mosquito-borne flavivirus that represents a public health emergency at the ongoing epidemic. Previously, this rare virus was limited to sporadic cases in Africa and Asia until its emergence in Brazil, South America in 2015, where it rapidly spread throughout the world. Recently, a high number of cases were reported in Singapore and other Southeast Asia countries. A combination of factors explains the current Zika virus outbreak although it is highly likely that the changes in the climate and high frequency of travelling contribute to the spread of Aedes vector carrying the Zika virus mainly to the tropical climate countries such as the Southeast Asia...
March 2017: Asian Pacific Journal of Tropical Medicine
https://www.readbyqxmd.com/read/28441636/psychological-features-and-quality-of-life-in-50-adult-patients-with-epilepsy-and-their-caregivers-from-the-lecco-epilepsy-center-italy
#5
Alessandra Petruzzi, Andrea Rigamonti, Claudia Yvonne Finocchiaro, Paolo Borelli, Elena Lamperti, Antonio Silvani, Rossana Regazzoni, Lorenzo Stanzani, Andrea Salmaggi
Epilepsy is one of the most common neurological disorders. To the best of our knowledge, in Italy, the relationship between patients' and caregivers' psychological state has rarely been analyzed. Thus, we sought to evaluate both the psychological state of patients with epilepsy and that of their caregivers and the interrelationship between them. We also assessed the existing relation between psychological features and some clinical and demographic information, such as number of antiepileptic drugs (AEDs), epilepsy duration and education level of patients and their caregivers...
April 22, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28437319/quality-of-antiepileptic-treatment-among-older-medicare-beneficiaries-with-epilepsy-a-retrospective-claims-data-analysis
#6
Maria Pisu, Joshua Richman, Kendra Piper, Roy Martin, Ellen Funkhouser, Chen Dai, Lucia Juarez, Jerzy P Szaflarski, Edward Faught
BACKGROUND: Enzyme-inducing antiepileptic drugs (EI-AEDs) are not recommended for older adults with epilepsy. Quality Indicator for Epilepsy Treatment 9 (QUIET-9) states that new patients should not receive EI-AEDs as first line of treatment. In light of reported racial/ethnic disparities in epilepsy care, we investigated EI-AED use and QUIET-9 concordance across major racial/ethnic groups of Medicare beneficiaries. RESEARCH DESIGN: Retrospective analyses of 2008-2010 Medicare claims for a 5% random sample of beneficiaries 67 years old and above in 2009 augmented for minority representation...
April 21, 2017: Medical Care
https://www.readbyqxmd.com/read/28437184/control-of-mosquito-borne-diseases-in-northwestern-italy-preparedness-from-one-season-to-the-next
#7
Federica Verna, Paola Modesto, Maria Cristina Radaelli, Danila Raffaella Francese, Enrico Monaci, Rosanna Desiato, Carla Grattarola, Simone Peletto, Andrea Mosca, Giovanni Savini, Rosa Chianese, Vittorio Demicheli, Marino Prearo, Laura Chiavacci, Alessandra Pautasso, Cristina Casalone
INTRODUCTION: Mosquito-borne diseases (MBDs) are spreading worldwide due to globalization and climate change, representing a threat for both humans and animals. Of great concern are the infections caused by viruses belonging to the Flavivirus genus as West Nile virus (WNV) and Usutu virus (USUV) transmitted by Culex sp. or Dengue virus and Zika virus (ZIKV), transmitted by Aedes sp. This work describes the surveillance protocol enforced in Piedmont (Northwestern Italy) to control MBDs spread, focusing on the activities performed on mosquitoes during the 2015 vector season...
May 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/28435138/proteomic-analysis-of-a-mosquito-host-cell-response-to-persistent-wolbachia-infection
#8
Gerald Baldridge, LeeAnn Higgins, Bruce Witthuhn, Todd Markowski, Abigail Baldridge, Anibal Armien, Ann Fallon
Wolbachia pipientis, an obligate intracellular bacterium associated with arthropods and filarial worms, is a target for filarial disease treatment and provides a gene drive agent for insect vector population suppression/replacement. We compared proteomes of Aedes albopictus mosquito C/wStr1 cells persistently infected with Wolbachia strain wStr, relative to uninfected C7-10 control cells. Among approximately 2,500 proteins, iTRAQ data identified 815 differentially abundant proteins. As functional classes, energy and central intermediary metabolism proteins were elevated in infected cells, while suppressed proteins with roles in host DNA replication, transcription and translation suggested that Wolbachia suppresses pathways that support host cell growth and proliferation...
April 20, 2017: Research in Microbiology
https://www.readbyqxmd.com/read/28434865/allergens-involved-in-the-cross-reactivity-of-aedes-aegypti-with-other-arthropods
#9
Jose Fernando Cantillo, Leonardo Puerta, Sylvie Lafosse-Marin, Jose Luis Subiza, Luis Caraballo, Enrique Fernandez-Caldas
BACKGROUND: Cross-reactivity between Aedes aegypti and mites, cockroaches, and shrimp has been previously suggested, but the involved molecular components have not been fully described. OBJECTIVE: To evaluate the cross-reactivity between A aegypti and other arthropods. METHODS: Thirty-four serum samples from patients with asthma and/or allergic rhinitis were selected, and specific IgE to A aegypti, Dermatophagoides pteronyssinus, Dermatophagoides farinae, Blomia tropicalis, Periplaneta americana...
April 20, 2017: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/28434203/topiramate-monotherapy-for-juvenile-myoclonic-epilepsy
#10
REVIEW
Jia Liu, Lu-Ning Wang, Yu-Ping Wang
BACKGROUND: Topiramate is a newer broad-spectrum antiepileptic drug (AED). Some studies have shown the benefits of topiramate monotherapy in the treatment of juvenile myoclonic epilepsy (JME). However, there are no current systematic reviews to determine the efficacy and tolerability of topiramate monotherapy in people with JME. This is an updated version of the original Cochrane Review published in Issue 12, 2015. OBJECTIVES: To evaluate the efficacy and tolerability of topiramate monotherapy in the treatment of JME...
April 23, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28433681/n-aryl-n-ethyleneaminothioureas-effectively-inhibit-acetylcholinesterase-1-from-disease-transmitting-mosquitoes
#11
Sofie Knutsson, Tomas Kindahl, Cecilia Engdahl, Dariush Nikjoo, Nina Forsgren, Stanley Kitur, Fredrik Ekström, Luna Kamau, Anna Linusson
Vector control of disease-transmitting mosquitoes by insecticides has a central role in reducing the number of parasitic- and viral infection cases. The currently used insecticides are efficient, but safety concerns and the development of insecticide-resistant mosquito strains warrant the search for alternative compound classes for vector control. Here, we have designed and synthesized thiourea-based compounds as non-covalent inhibitors of acetylcholinesterase 1 (AChE1) from the mosquitoes Anopheles gambiae (An...
March 27, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28432154/identification-of-the-septate-junction-protein-gliotactin-in-the-mosquito-aedes-aegypti-evidence-for-a-role-in-increased-paracellular-permeability-in-larvae
#12
Sima Jonusaite, Scott P Kelly, Andrew Donini
Septate junctions (SJs) regulate paracellular permeability across invertebrate epithelia. However, little is known about the function of SJ proteins in aquatic invertebrates. In this study, a role for the transmembrane SJ protein gliotactin (Gli) in the osmoregulatory strategies of larval mosquito (Aedes aegypti) was examined. Differences in gli transcript abundance were observed between the midgut, Malpighian tubules (MT), hindgut and anal papillae (AP) of A. aegypti, which are epithelia that participate in larval mosquito osmoregulation...
April 21, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28431281/dengue-virus-replicates-and-accumulates-in-aedes-aegypti-salivary-glands
#13
Vincent Raquin, Louis Lambrechts
Dengue virus (DENV) is an RNA virus transmitted among humans by mosquito vectors, mainly Aedes aegypti. DENV transmission requires viral dissemination from the mosquito midgut to the salivary glands. During this process the virus undergoes several population bottlenecks, which are stochastic reductions in population size that restrict intra-host viral genetic diversity and limit the efficiency of natural selection. Despite the implications for virus transmission and evolution, DENV replication in salivary glands has not been directly demonstrated...
April 18, 2017: Virology
https://www.readbyqxmd.com/read/28431166/landscape-genetics-of-aedes-mcintoshi-diptera-culicidae-an-important-vector-of-rift-valley-fever-virus-in-northeastern-kenya
#14
Lindsay P Campbell, Alana M Alexander
Rift Valley fever virus (RVFV) is a vector-borne, zoonotic disease that affects humans, wild ungulates, and domesticated livestock in Africa and the Arabian Peninsula. Rift Valley fever virus exhibits interepizootic and epizootic phases, the latter defined by widespread virus occurrence in domesticated livestock. Kenya appears to be particularly vulnerable to epizootics, with 11 outbreaks occurring between 1951 and 2007. The mosquito species Aedes mcintoshi (subgenus Neomelaniconion) is an important primary vector for RVFV in Kenya...
April 18, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28430564/effects-of-zika-virus-strain-and-aedes-mosquito-species-on-vector-competence
#15
Alexander T Ciota, Sean M Bialosuknia, Steven D Zink, Matthew Brecher, Dylan J Ehrbar, Madeline N Morrissette, Laura D Kramer
In the Western Hemisphere, Zika virus is thought to be transmitted primarily by Aedes aegypti mosquitoes. To determine the extent to which Ae. albopictus mosquitoes from the United States are capable of transmitting Zika virus and the influence of virus dose, virus strain, and mosquito species on vector competence, we evaluated multiple doses of representative Zika virus strains in Ae. aegypti and Ae. albopictus mosquitoes. Virus preparation (fresh vs. frozen) significantly affected virus infectivity in mosquitoes...
July 15, 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28430562/competence-of-aedes-aegypti-ae-albopictus-and-culex-quinquefasciatus-mosquitoes-as-zika-virus-vectors-china
#16
Zhuanzhuan Liu, Tengfei Zhou, Zetian Lai, Zhenhong Zhang, Zhirong Jia, Guofa Zhou, Tricia Williams, Jiabao Xu, Jinbao Gu, Xiaohong Zhou, Lifeng Lin, Guiyun Yan, Xiao-Guang Chen
In China, the prevention and control of Zika virus disease has been a public health threat since the first imported case was reported in February 2016. To determine the vector competence of potential vector mosquito species, we experimentally infected Aedes aegypti, Ae. albopictus, and Culex quinquefasciatus mosquitoes and determined infection rates, dissemination rates, and transmission rates. We found the highest vector competence for the imported Zika virus in Ae. aegypti mosquitoes, some susceptibility of Ae...
July 15, 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28426765/allatotropin-a-pleiotropic-neuropeptide-that-elicits-mosquito-immune-responses
#17
Salvador Hernández-Martínez, Minerva Sánchez-Zavaleta, Kevin Brito, Antonia Herrera-Ortiz, Sheila Ons, Fernando G Noriega
Allatotropins (AT) are neuropeptides with pleotropic functions on a variety of insect tissues. They affect processes such as juvenile hormone biosynthesis, cardiac rhythm, oviduct and hindgut contractions, nutrient absorption and circadian cycle. The present work provides experimental evidence that AT elicits immune responses in two important mosquito disease vectors, Anopheles albimanus and Aedes aegypti. Hemocytes and an immune-competent mosquito cell line responded to AT by showing strong morphological changes and increasing bacterial phagocytic activity...
2017: PloS One
https://www.readbyqxmd.com/read/28426258/improvements-in-out-of-hospital-cardiac-arrest-survival-from-1998-to-2013
#18
Yutaka Yamaguchi, Jeff A Woodin, Koichiro Gibo, Dana M Zive, Mohamud R Daya
OBJECTIVES: Out-of-hospital cardiac arrest (OHCA) remains a major public health burden. Aggregate OHCA survival to hospital discharge has reportedly remained unchanged at 7.6% for almost 30 years from 1970 to 2008. We examined the trends in adult OHCA survival over a 16-year period from 1998 to 2013 within a single EMS agency. METHODS: Observational cohort study of adult OHCA patients treated by Tualatin Valley Fire & Rescue (TVF&R) from 1998 to 2013. This is an ALS first response fire agency that maintains an active Utstein style cardiac arrest registry and serves a population of approximately 450,000 in 9 incorporated cities in Oregon...
April 20, 2017: Prehospital Emergency Care
https://www.readbyqxmd.com/read/28425959/the-cost-of-arbovirus-disease-prevention-in-europe-area-wide-integrated-control-of-tiger-mosquito-aedes-albopictus-in-emilia-romagna-northern-italy
#19
Massimo Canali, Stefano Rivas-Morales, Philippe Beutels, Claudio Venturelli
Aedes albopictus (tiger mosquito) has become the most invasive mosquito species worldwide, in addition to being a well-known vector of diseases, with a proven capacity for the transmission of chikungunya and dengue viruses in Europe as well as the Zika virus in Africa and in laboratory settings. This research quantifies the cost that needs to be provided by public-health systems for area-wide prevention of arboviruses in Europe. This cost has been calculated by evaluating the expenditure of the plan for Aedes albopictus control set up in the Emilia-Romagna region (Northern Italy) after a chikungunya outbreak occurred in 2007...
April 20, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28425236/predictors-of-health-related-quality-of-life-in-childhood-epilepsy-and-comparison-with-healthy-children-findings-from-an-indian-study
#20
Dipika Bansal, Chandrika Azad, Kapil Gudala, Anil Dasari
BACKGROUND/AIM: Children with epilepsy have reduced health-related quality of life (HRQOL) due to disease and medications. We aimed to assess child-reported HRQOL in Indian children with epilepsy and compare it with that in healthy children. MATERIALS AND METHODS: A cross-sectional study of 256 children with epilepsy aged between 5 and 18 years on antiepileptic drug (AED) treatment for at least 3 months was performed and 125 age and sex matched healthy children were included...
April 18, 2017: Turkish Journal of Medical Sciences
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