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https://www.readbyqxmd.com/read/29452686/technological-advances-and-changing-indications-for-lumbar-puncture-in-neurological-disorders
#1
REVIEW
Joost M Costerus, Matthijs C Brouwer, Diederik van de Beek
Technological advances have changed the indications for and the way in which lumbar puncture is done. Suspected CNS infection remains the most common indication for lumbar puncture, but new molecular techniques have broadened CSF analysis indications, such as the determination of neuronal autoantibodies in autoimmune encephalitis. New screening techniques have increased sensitvity for pathogen detection and can be used to identify pathogens that were previously unknown to cause CNS infections. Evidence suggests that potential treatments for neurodegenerative diseases, such as Alzheimer's disease, will rely on early detection of the disease with the use of CSF biomarkers...
March 2018: Lancet Neurology
https://www.readbyqxmd.com/read/29451044/endemic-and-emerging-acute-virus-infections-in-indonesia-an-overview-of-the-past-decade-and-implications-for-the-future
#2
Wesley de Jong, Musofa Rusli, Soerajja Bhoelan, Sofie Rohde, Fedik A Rantam, Purwati A Noeryoto, Usman Hadi, Eric C M van Gorp, Marco Goeijenbier
Being the largest archipelago country in the world, with a tropical climate and a unique flora and fauna, Indonesia habitats one of the most diverse biome in the world. These characteristics make Indonesia a popular travel destination, with tourism numbers increasing yearly. These characteristics also facilitate the transmission of zoonosis and provide ideal living and breading circumstances for arthropods, known vectors for viral diseases. A review of the past 10 years of literature, reports of the Ministry of Health, Republic of Indonesia and ProMED-mail shows a significant increase in dengue infection incidence...
February 16, 2018: Critical Reviews in Microbiology
https://www.readbyqxmd.com/read/29449048/borrelia-burgdorferi-sl-and-tick-borne-encephalitis-virus-coinfection-in-eastern-france
#3
P H Boyer, P Kieffer, S J de Martino, L Zilliox, J Y Vogel, B Jaulhac, Y Hansmann
No abstract text is available yet for this article.
February 12, 2018: Médecine et Maladies Infectieuses
https://www.readbyqxmd.com/read/29447763/scaling-of-bony-canals-for-encephalic-vessels-in-euarchontans-implications-for-the-role-of-the-vertebral-artery-and-brain-metabolism
#4
Doug M Boyer, Arianna R Harrington
Supplying the central nervous system with oxygen and glucose for metabolic activities is a critical function for all animals at physiologic, anatomical, and behavioral levels. A relatively proximate challenge to nourishing the brain is maintaining adequate blood flow. Euarchontans (primates, dermopterans and treeshrews) display a diversity of solutions to this challenge. Although the vertebral artery is a major encephalic vessel, previous research has questioned its importance for irrigating the cerebrum. This presents a puzzling scenario for certain strepsirrhine primates (non-cheirogaleid lemuriforms) that have reduced promontorial branches of the internal carotid artery and no apparent alternative encephalic vascular route except for the vertebral artery...
January 2018: Journal of Human Evolution
https://www.readbyqxmd.com/read/29447156/west-nile-and-st-louis-encephalitis-viral-genetic-determinants-of-avian-host-competence
#5
Payal D Maharaj, Angela M Bosco-Lauth, Stanley A Langevin, Michael Anishchenko, Richard A Bowen, William K Reisen, Aaron C Brault
West Nile virus (WNV) and St. Louis encephalitis (SLEV) virus are enzootically maintained in North America in cycles involving the same mosquito vectors and similar avian hosts. However, these viruses exhibit dissimilar viremia and virulence phenotypes in birds: WNV is associated with high magnitude viremias that can result in mortality in certain species such as American crows (AMCRs, Corvus brachyrhynchos) whereas SLEV infection yields lower viremias that have not been associated with avian mortality. Cross-neutralization of these viruses in avian sera has been proposed to explain the reduced circulation of SLEV since the introduction of WNV in North America; however, in 2015, both viruses were the etiologic agents of concurrent human encephalitis outbreaks in Arizona, indicating the need to re-evaluate host factors and cross-neutralization responses as factors potentially affecting viral co-circulation...
February 15, 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29445153/development-of-a-chimeric-zika-vaccine-using-a-licensed-live-attenuated-flavivirus-vaccine-as-backbone
#6
Xiao-Feng Li, Hao-Long Dong, Hong-Jiang Wang, Xing-Yao Huang, Ye-Feng Qiu, Xue Ji, Qing Ye, Chunfeng Li, Yang Liu, Yong-Qiang Deng, Tao Jiang, Gong Cheng, Fu-Chun Zhang, Andrew D Davidson, Ya-Jun Song, Pei-Yong Shi, Cheng-Feng Qin
The global spread of Zika virus (ZIKV) and its unexpected association with congenital defects necessitates the rapid development of a safe and effective vaccine. Here we report the development and characterization of a recombinant chimeric ZIKV vaccine candidate (termed ChinZIKV) that expresses the prM-E proteins of ZIKV using the licensed Japanese encephalitis live-attenuated vaccine SA14-14-2 as the genetic backbone. ChinZIKV retains its replication activity and genetic stability in vitro, while exhibiting an attenuation phenotype in multiple animal models...
February 14, 2018: Nature Communications
https://www.readbyqxmd.com/read/29444764/clinical-radiological-pathological-correlation-in-an-unusual-case-of-refractory-epilepsy-a-two-year-journey-of-whodunit
#7
Deepak Menon, Ramshekhar N Menon, Chandrasekharan Kesavadas, Anita Mahadevan, Ashalatha Radhakrishnan, Sudheeran Kannoth, Pradeep P Nair, Mathew Abraham, Bejoy Thomas, Sanjeev V Thomas
New-onset refractory focal epilepsy poses significant challenges to the clinician in the absence of specific diagnostic biomarkers. Differential diagnoses based on imaging may be expanded by a veritable spectrum of peri-ictal imaging findings that may mask the underlying substrate. We report a 13-year-old girl who presented with refractory focal seizures of left parieto-occipital origin with cytotoxic gyral oedema noted over the same region on imaging. Despite an initial negative autoantibody profile, the patient was treated with immunosuppression, followed by serial relapses requiring immune-modulation...
February 14, 2018: Epileptic Disorders: International Epilepsy Journal with Videotape
https://www.readbyqxmd.com/read/29443773/anti-n-methyl-d-aspartate-receptor-encephalitis-associated-with-acute-toxoplasma-gondii-infection-a-case-report
#8
Xiaotang Cai, Hui Zhou, Yongmei Xie, Dan Yu, Zhiling Wang, Haitao Ren
RATIONALE: Anti-N-methyl-D-aspartate receptor (NMDAR) encephalitis has been recognized as the most frequent autoimmune encephalitis in children. Several infectious agents have been implicated in anti-NMDA encephalitis. PATIENT CONCERNS: A previously healthy immunocompetent 9-year-old girl first presented with seizures, headaches and vomiting. Cerebrospinal fluid and brain magnetic resonance imaging were normal. After one week onset, the patient gradually developed unexplained personality and behavior changes, accompanied by fever and seizures again...
February 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29442435/an-unsettling-explanation-for-the-failure-of-skatole-baited-ovitraps-to-capture-culex-mosquitoes
#9
Marcelo H S Paiva, Rosângela M R Barbosa, Suzane A Santos, Norma M Silva, Marcia B Paula, Constância F J Ayres, Walter S Leal
Culex mosquitoes are primarily found in temperate and tropical regions worldwide where they play a crucial role as main vectors of filarial worms and arboviruses. In Recife, a northeast city in Brazil, high densities of Culex quinquefasciatus are often found in association with human populated areas. In marked contrast to another part of the city, field tests conducted in the neighborhood of Sítio dos Pintos showed that trapping of mosquitoes in skatole-baited ovitraps did not differ significantly from captures in control (water) traps...
February 14, 2018: Insect Science
https://www.readbyqxmd.com/read/29441740/changes-of-epidemiological-characteristics-of-japanese-encephalitis-viral-infection-and-birds-as-a-potential-viral-transmitter-in-korea
#10
Wonjun Bae, Jung Heon Kim, Jiyeon Kim, Jungyun Lee, Eung Soo Hwang
Japanese encephalitis (JE) cases have been increasingly reported recently especially in Seoul and its vicinity. Pigs are known as amplifying host of JE virus (JEV), but do not play an important role in these recent events because pig-breeding is not common in Seoul. The distribution and the density of migratory birds are correlated with JE cases in cities and they might be highly potential hosts contributing to transmit JEV in metropolitan areas. JE genotype and sero-prevalence in birds should be determined for the verification of the transmission route of JEV in the recent sporadic occurrence of JE cases in Seoul...
February 26, 2018: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/29441039/metastatic-burned-out-seminoma-causing-neurological-paraneoplastic-syndrome-not-quite-burned-out
#11
Yuval Freifeld, Payal Kapur, Ritika Chitkara, Francesca Lee, Pravin Khemani, Aditya Bagrodia
A 44-year-old man presented with cerebellar ataxia and limbic encephalitis and was ultimately diagnosed with metastatic germ cell neoplasm resulting from a "burned out" primary testicular tumor. The patient had progressive ataxia, leading to a thorough investigation for infectious, autoimmune, metabolic, and malignant causes of acquired cerebellar ataxia that revealed no significant findings. Testicular sonography demonstrated a possible right testicular lesion that was not confirmed on radical inguinal orchiectomy...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29440541/hemorrhagic-encephalitis-associated-with-h3n2-influenza-a-viral-pneumonia
#12
Mahmoud A AbdelRazek, Michael Leone, Nagagopal Venna
No abstract text is available yet for this article.
February 13, 2018: Neurology
https://www.readbyqxmd.com/read/29440480/trismus-caused-by-paraneoplastic-brainstem-encephalitis
#13
Naveed Malek, Maxwell Damian
We discuss the assessment and differential diagnoses of a middle-aged man who presented with trismus, double vision and behavioural problems. MRI scan of the brain was initially normal, but a month later showed high signal in the hippocampal region on fluid attenuated inversion recovery sequence (FLAIR) imaging. We suspected a paraneoplastic brainstem encephalitis because of his smoking history, rapidly progressive symptoms and abnormal brainstem signs. A positron emission tomography-CT scan identified abnormal subcarinal nodes, shown on biopsy to be metastatic small cell lung cancer...
February 13, 2018: Practical Neurology
https://www.readbyqxmd.com/read/29440316/glial-fibrillary-acidic-protein-antibody-positive-meningoencephalomyelitis
#14
Angeliki Zarkali, Oliver Cousins, Dilan Athauda, Samuel Moses, Nicholas Moran, Sreedharan Harikrishnan
Glial fibrillary acidic protein antibody-positive meningoencephalomyelitis is a newly described, possibly under-recognised, severe inflammatory condition of the nervous system. The clinical presentation is variable but most commonly is a combination of meningitis, encephalitis and myelitis; other manifestations may include seizures, psychiatric symptoms and tremor. There is a significant association with malignancies, often occult, and with other autoimmune conditions. Although the disease responds well to corticosteroids acutely, it typically relapses when these are tapered, and so patients need long-term immunosuppression...
February 9, 2018: Practical Neurology
https://www.readbyqxmd.com/read/29439749/nmda-receptor-autoimmunity-in-mania-following-hsv-encephalitis
#15
Graham Blackman, Nicholas Moran, Eli Silber, Christopher Symeon, Franz Brunnhuber, Asif Mazumder, Fatima Jaffer, Thomas Pollak
No abstract text is available yet for this article.
February 14, 2018: Psychological Medicine
https://www.readbyqxmd.com/read/29437548/a-serosurvey-of-flavivirus-infection-in-horses-and-birds-in-slovakia
#16
Tomáš Csank, Petra Drzewnioková, Ľuboš Korytár, Peter Major, Miklós Gyuranecz, Juraj Pistl, Tamás Bakonyi
In central Europe, at least three flaviviruses circulate among vectors and vertebrate hosts. West Nile virus (WNV) and Usutu virus (USUV) are mosquito-borne viruses maintained in the nature by enzootic cycle between mosquitoes and birds. Tick-borne encephalitis virus (TBEV) is a flavivirus causing annual human cases in Slovakia. The aim of this study is the prevalence assessment of flavivirus infections in horses (n = 145) and birds (n = 109) by enzyme-linked immunosorbent assay (ELISA) and confirmation by neutralization test (VNT)...
February 13, 2018: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/29436421/evaluation-of-a-commercial-multiplex-molecular-panel-for-the-diagnosis-of-infectious-meningitis-and-encephalitis
#17
Rachael M Liesman, Angela P Strasburg, Angela K Heitman, Elitza S Theel, Robin Patel, Matthew J Binnicker
Rapid and accurate laboratory tests are important for the timely diagnosis and treatment of central nervous system infections. The FilmArray® Meningitis/Encephalitis (ME) panel (BioFire Diagnostics, Salt Lake City, UT) is an FDA-cleared, multiplex molecular panel that allows for the detection of 14 pathogens (bacterial [n=6], viral [n=7], and fungal [n=1]) from cerebrospinal fluid (CSF). In this study, we evaluated the performance characteristics of the FilmArray ME panel using clinical, residual CSF samples (n=291) that tested positive by a routine method(s) (e...
February 7, 2018: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/29435806/critical-west-nile-neuroinvasive-disease
#18
Maximiliano A Hawkes, Ivan D Carabenciov, Eelco F M Wijdicks, Alejandro A Rabinstein
BACKGROUND: Data to guide neurointensivists seeing patients with West Nile Neuroinvasive disease (WNND) are lacking. We present a comparatively large series of patients with WNND admitted to the intensive care unit (ICU) and provide data on their early diagnosis, triage to the ICU and predictors of short-term outcomes. METHODS: We retrospectively identified patients aged ≥ 18 years old with WNND from January 1999 to November 2016. Demographic and clinical data, the modified Rankin Scale at discharge and disposition were collected...
February 12, 2018: Neurocritical Care
https://www.readbyqxmd.com/read/29435494/tick-borne-encephalitis-virus-vaccine-induced-human-antibodies-mediate-negligible-enhancement-of-zika-virus-infection-in-vitro-and-in-a-mouse-model
#19
James Duehr, Silviana Lee, Gursewak Singh, Gregory A Foster, David Krysztof, Susan L Stramer, Maria C Bermúdez González, Eva Menichetti, Robert Geretschläger, Christian Gabriel, Viviana Simon, Jean K Lim, Florian Krammer
Recent reports in the scientific literature have suggested that anti-dengue virus (DENV) and anti-West Nile virus (WNV) immunity exacerbates Zika virus (ZIKV) pathogenesis in vitro and in vivo in mouse models. Large populations of immune individuals exist for a related flavivirus (tick-borne encephalitis virus [TBEV]), due to large-scale vaccination campaigns and endemic circulation throughout most of northern Europe and the southern Russian Federation. As a result, the question of whether anti-TBEV immunity can affect Zika virus pathogenesis is a pertinent one...
January 2018: MSphere
https://www.readbyqxmd.com/read/29435366/zika-chikungunya-and-dengue-the-causes-and-threats-of-new-and-re-emerging-arboviral-diseases
#20
REVIEW
Enny S Paixão, Maria Gloria Teixeira, Laura C Rodrigues
The recent emergence and re-emergence of viral infections transmitted by vectors-Zika, chikungunya, dengue, Japanese encephalitis, West Nile, yellow fever and others-is a cause for international concern. Using as examples Zika, chikungunya and dengue, we summarise current knowledge on characteristics of the viruses and their transmission, clinical features, laboratory diagnosis, burden, history, possible causes of the spread and the expectation for future epidemics. Arboviruses are transmitted by mosquitoes, are of difficult diagnosis, can have surprising clinical complications and cause severe burden...
2018: BMJ Global Health
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