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Dirk Louis P Schorkopf, Christos G Spanoudis, Leonard E G Mboera, Agenor Mafra-Neto, Rickard Ignell, Teun Dekker
BACKGROUND: There is a global need for cost-effective and environmentally friendly tools for control of mosquitoes and mosquito-borne diseases. One potential way to achieve this is to combine already available tools to gain synergistic effects to reduce vector mosquito populations. Another possible way to improve mosquito control is to extend the active period of a given control agent, enabling less frequent applications and consequently, more efficient and longer lasting vector population suppression...
October 2016: PLoS Neglected Tropical Diseases
Sharon Bewick, Folashade Agusto, Justin M Calabrese, Ephantus J Muturi, William F Fagan
La Crosse encephalitis is a viral disease that has emerged in new locations across the Appalachian region of the United States. Conventional wisdom suggests that ongoing emergence of La Crosse virus (LACV) could stem from the invasive Asian tiger (Aedes albopictus) mosquito. Efforts to prove this, however, are complicated by the numerous transmission routes and species interactions involved in LACV dynamics. To analyze LACV transmission by Asian tiger mosquitoes, we constructed epidemiologic models. These models accurately predict empirical infection rates...
November 2016: Emerging Infectious Diseases
Julia Granerod, Nicholas W S Davies, Parashar P Ramanuj, Ava Easton, David W G Brown, Sara L Thomas
The true extent of sequelae in encephalitis survivors relative to rates within the general population is not known. This study aimed to quantify increased risks of epilepsy, depressive disorders, anxiety disorders, psychotic disorders, bipolar disorder, cognitive problems, dementia, headache, and alcohol abuse among encephalitis cases. 2460 exposed individuals diagnosed with incident encephalitis in the Clinical Practice Research Datalink and 47,914 unexposed individuals without a history of encephalitis were included...
October 20, 2016: Journal of Neurology
Y Yang, Y D Du
Tick-borne encephalitis, also called forest encephalitis, is caused by tick-borne encephalitis virus. Central nervous system lesion is the major clinical symptom of tick-borne encephalitis, as an acute infectious disease, the case fatality rate is as high as 10%-20%. Virology experts consider it as a key and difficult point in recent years. This paper summarizes the progress in research of epidemiological characteristics, pathogenesis, clinical manifestations, outcome, diagnosis and treatment of tick-borne encephalitis to provide evidence for the prevention and treatment of tick-borne encephalitis...
October 10, 2016: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
Melanie Ott, Débora Marques, Christina Funk, Susanne M Bailer
BACKGROUND: Herpes simplex virus type 1 (HSV1), a member of the alphaherpesvirinae, can cause recurrent facial lesions and encephalitis. Two membrane envelopment processes, one at the inner nuclear membrane and a second at cytoplasmic membranes are crucial for a productive viral infection. Depending on the subfamily, herpesviruses encode more than 11 different transmembrane proteins including members of the tail-anchored protein family. HSV1 encodes three tail-anchored proteins pUL34, pUL56 and pUS9 characterized by a single hydrophobic region positioned at their C-terminal end that needs to be released from the ribosome prior to posttranslational membrane insertion...
October 20, 2016: Virology Journal
Shu-Ling Hoshi, Masahide Kondo, Ichiro Okubo
Two rotavirus vaccines are currently available in Japan. We estimated the incremental cost-effectiveness ratio (ICER) of routine infant rotavirus immunisation programme without defining which vaccine to be evaluated, which reflects the current deliberation at the Health Science Council in charge of Immunisation and Vaccine established by the Ministry of Health, Labour and Welfare of Japan. Three ICERs were estimated, one from payers' perspective and two from societal perspective depending on the scenarios to uptake vaccines...
October 20, 2016: Human Vaccines & Immunotherapeutics
Katherine McIvor, Perry Moore
OBJECTIVE: Anti N-methyl-D-aspartate receptor (anti-NMDAR) encephalitis is an autoimmune disorder that was only fully discovered recently and neuropsychological outcome data remains sparse. We present the case of BA, a 19-year-old male, which illustrates the cognitive outcome in an untreated case over a time period of over 2½ years. METHOD: We conducted three cognitive assessments, including tests of memory and executive functioning, over this time period and considered the evidence for reliable change in memory function using the Wechsler Advanced Clinical Solutions (ACS) serial assessment package...
October 20, 2016: Clinical Neuropsychologist
Jasmine Porwal, Ajay Chauhan
Dengue infection accompanied by unusual complications and manifestations has been described before. Here we report a case of dengue encephalitis who was IgM positive for dengue serology and had presented to us with only motor weakness after an acute febrile episode. Dengue presenting as encephalitis is in itself a very rare feature and that too, pure motor weakness has hardly ever been reported before.
August 2016: Journal of the Association of Physicians of India
Yann J K Bertrand, Magnus Johansson, Peter Norberg
The hypothesis of wide spread reticulate evolution in Tick-Borne Encephalitis virus (TBEV) has recently gained momentum with several publications describing past recombination events involving various TBEV clades. Despite a large body of work, no consensus has yet emerged on TBEV evolutionary dynamics. Understanding the occurrence and frequency of recombination in TBEV bears significant impact on epidemiology, evolution, and vaccination with live vaccines. In this study, we investigated the possibility of detecting recombination events in TBEV by simulating recombinations at several locations on the virus' phylogenetic tree and for different lengths of recombining fragments...
2016: PloS One
D B Kadam, Sonali Salvi, Ajay Chandanwale
The World Health Organization (WHO) has coined the term expanded dengue to describe cases which do not fall into either dengue shock syndrome or dengue hemorrhagic fever. This has incorporated several atypical findings of dengue. Dengue virus has not been enlisted as a common etiological agent in several conditions like encephalitis, Guillain Barre syndrome. Moreover it is a great mimic of co-existing epidemics like Malaria, Chikungunya and Zika virus disease, which are also mosquito-borne diseases. The atypical manifestations noted in dengue can be mutisystemic and multifacetal...
July 2016: Journal of the Association of Physicians of India
A A H Bressers, N A Goto, S Piepers, J C Regelink
BACKGROUND: Autoimmune encephalitis is a rare condition characterized by subacute development of cognitive and psychiatric symptoms. A paraneoplastic syndrome involves autoimmune encephalitis caused by classic antibodies. Although this condition is often associated with cancer, no malignancy has yet been found in 70-90% of patients at the time of diagnosis. CASE DESCRIPTION: We saw a 58-year-old male patient with fatigue, diarrhoea and weight loss. He was also experiencing hyperekplexia, personality changes and an instable gait...
2016: Nederlands Tijdschrift Voor Geneeskunde
Annukka Pietikäinen, Mikael Maksimow, Tommi Kauko, Saija Hurme, Marko Salmi, Jukka Hytönen
BACKGROUND: Lyme neuroborreliosis (LNB) is one of the manifestations of Lyme disease. Although it is known that immune reaction of LNB patients is dominated by Th1 and Th2 responses and patients have elevated numbers of B cells in their cerebrospinal fluid (CSF), not all the cells involved in inflammation and cytokine secretion have been characterized. The current diagnostics of LNB is based on intrathecal production of antibodies. In recent years, the measurement of chemokine CXCL13 concentration from the CSF has been introduced as a new promising diagnostic tool for LNB to complement the antibody-based diagnostic methods...
October 18, 2016: Journal of Neuroinflammation
Yuka Saito, Meng Ling Moi, Nozomi Takeshita, Chang-Kweng Lim, Hajime Shiba, Kuniaki Hosono, Masayuki Saijo, Ichiro Kurane, Tomohiko Takasaki
BACKGROUND: Dengue virus (DENV) and Japanese encephalitis virus (JEV) belong to the genus Flavivirus, and infection with a virus within this genus induces antibodies that are cross-reactive to other flaviviruses. Particularly in DENV infection, antibodies to DENV possess two competing activities: neutralizing activity and infection-enhancing activity. These antibody activities are considered central in modulating clinical outcomes of DENV infection. Here, we determined the neutralizing and infection-enhancing activity of DENV cross-reactive antibodies in adults before and after JE vaccination...
October 18, 2016: BMC Infectious Diseases
Michael M Neeki, Christine Au, Aurora Richard, Carlos Peace, Sharon Jaques, Jens Johansson
PURPOSE: We aimed to describe a case of an incarcerated adolescent with acute disseminated encephalomyelitis (ADEM) presenting as acute psychosis. METHODS: This was a retrospective case report followed with chart and literature review. MAIN FINDINGS: An adolescent with ADEM presented with drastic behavior and personality changes that led to her incarceration for serious charges. Acute disseminated encephalomyelitis leads to neuropsychiatric effects and can be seen with magnetic resonance imaging as a large mass effect that may result in a poor prognosis...
October 4, 2016: Pediatric Emergency Care
Ida Glode Helmuth, Marcella Ditte Broccia, Jonathan Peter Glenthøj, Katja Harder, Lise Jensen, Marie-Louise von Linstow, Anja Poulsen, Kåre Mølbak
BACKGROUND: Varicella, common in childhood and most often self-limiting, may cause complications including bacterial superinfection, pneumonia and encephalitis. Universal childhood varicella vaccination has been introduced in several countries, but is controversial in Europe. In Denmark, varicella is not part of the national immunization program and there is no national surveillance of varicella. The primary aim of the study was to describe the epidemiology and clinical characteristics of children hospitalized with varicella in Denmark...
October 3, 2016: Pediatric Infectious Disease Journal
Andrea Streng, Veit Grote, Anita Rack-Hoch, Johannes G Liese
BACKGROUND: Universal varicella vaccination for one-year-old children was introduced in Germany in 2004. We investigated changes in incidence and type of varicella-associated neurologic complications in children during the first 7 years after universal vaccination recommendation. METHODS: Surveillance study based on patients <17 years of age with an International Classification of Diseases (10 Revision, ICD-10) discharge diagnosis of varicella, annually reported by 22-29 pediatric hospitals in Bavaria (Germany), 2005 to 2011...
October 3, 2016: Pediatric Infectious Disease Journal
Li Wei, Zhang Qiong, Shen Xiao-Ting, Liu Yu-Jie, Mao Jian-Hua, Shu Qiang, Shang Shi-Qiang
Enterovirus (EV) has over 100 serotypes of species A-D, which can cause various symptoms in infants. Enterovirus encephalitis (EVE) is serve disease with high morbidity and mortality in children. To well define the epidemiology of EVE, we wanted to know more about EV and EV molecular typing by conducting this study in Hangzhou.Cerebrospinal fluid samples were collected from children with diagnosis of encephalitis. Meanwhile, one-step real-time RT-PCR was used for the detection of EV, and we also identified the serotypes of EV by using gene sequencing of VP1 or 5'UTR region...
October 2016: Medicine (Baltimore)
Alice Lejeune, Luise Martin, Sabine Santibanez, Stephanie Thee, Alexander Gratopp, Peter Späth, Annette Mankertz, Tilmann Kallinich, Horst von Bernuth
Most non-immune individuals exposed to the highly contagious measles virus will develop measles. Complications, such as encephalitis and bacterial infections due to measles virus-induced immunomodulation, account for an acute mortality rate of approximately 0.1% (1). It has been calculated that measles-related immunomodulation may last for several years and may contribute to child mortality on a larger scale than acute measles-related mortality (2). Since humans provide the only host for the virus, and an efficient vaccine is available, it is possible to eliminate measles...
October 17, 2016: Acta Paediatrica
Geoffrey C Halling, Charles Grose
No abstract text is available yet for this article.
October 17, 2016: Expert Review of Anti-infective Therapy
Charlene Steinhausen, Lyuba Zehl, Michaela Haas-Rioth, Kerstin Morcinek, Wolfgang Walkowiak, Stefan Huggenberger
The general assumption that brain size differences are an adequate proxy for subtler differences in brain organization turned neurobiologists toward the question why some groups of mammals such as primates, elephants, and whales have such remarkably large brains. In this meta-analysis, an extensive sample of eutherian mammals (115 species distributed in 14 orders) provided data about several different biological traits and measures of brain size such as absolute brain mass (AB), relative brain mass (RB; quotient from AB and body mass), and encephalization quotient (EQ)...
2016: Frontiers in Neuroanatomy
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