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https://www.readbyqxmd.com/read/29774860/importation-of-human-seoul-virus-infection-to-germany-from-indonesia
#1
Jörg Hofmann, Sabrina Weiss, Martin Kuhns, Annekathrin Zinke, Heike Heinsberger, Detlev H Kruger
Seoul hantavirus-associated hemorrhagic fever with renal syndrome cases are rare outside Asia and have not yet been found in Germany. We report clinical and molecular evidence for a Seoul virus infection in a patient in Germany. The infection was most likely acquired during a stay in Sulawesi, Indonesia.
June 2018: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/29768655/let-7e-inhibits-tnf-%C3%AE-expression-by-targeting-the-methyl-transferase-ezh2-in-denv2-infected-thp-1-cells
#2
Yingke Zhang, Qianqian Zhang, Lian Gui, Yan Cai, Xiaohong Deng, Cheukfai Li, Qi Guo, Xiaoshun He, Junqi Huang
Tumor necrosis factor α (TNFα), an important inflammatory cytokine, is associated with dengue hemorrhagic fever/dengue shock syndrome (DHF/DSS), a severe pathological manifestation of dengue virus (DENV) infection. However, the regulatory mechanism of microRNA on TNFα is currently unknown. Our study showed that the TNFα expression increased immediately and then later decreased, while a marked increase for the miRNA let-7e was detected in dengue virus type 2 (DENV2)-infected peripheral blood mononuclear cells (PBMCs)...
May 16, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29766339/predicting-factors-for-shunt-dependent-hydrocephalus-in-patients-with-aneurysmal-subarachnoid-hemorrhage
#3
Yung Ki Park, Hyeong-Joong Yi, Kyu-Sun Choi, Young-Jun Lee, Hyoung-Joon Chun, Sae Min Kwon, Dong-Won Kim
BACKGROUND: Chronic hydrocephalus after aneurysmal subarachnoid hemorrhage (SAH) is a major complication that leads to a medical burden and poor clinical outcomes. The aim of this study was to evaluate the predictive factors of shunt-dependent hydrocephalus focusing on postoperative fever and infection. METHOD: A total of 418 patients were included in this study and the patient demographic features, radiologic findings, days of fever burden, and infection were compared between the shunt (n = 72) and no shunt group (n = 346)...
May 15, 2018: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29765118/ifn-%C3%AE-s-inhibit-hantaan-virus-infection-through-the-jak-stat-pathway-and-expression-of-mx2-protein
#4
Ning Li, Fan Luo, Qingzhou Chen, Ni Zhu, Hui Wang, Linlin Xie, Hairong Xiong, Ming Yue, Yun Zhang, Yong Feng, Wei Hou
Hantaan virus (HTNV), member of the newly defined Hantaviridae family, within the order Bunyavirales, can cause a hemorrhagic fever with renal syndrome with high fatality rates in humans. However, no specific antiviral agents are currently available for HTNV infection approved by the US Food and Drug Administration. Although interferon lambdas (IFN-λs) have been shown to induce an antiviral state against HTNV, the molecular mechanisms remain to be determined. In this study, we found that IFN-λs exerted its anti-HTNV effect by activating Janus kinase/signal transducers and activators of transcription (JAK-STAT) pathway-mediated antiviral immunity in A549 cells...
May 15, 2018: Genes and Immunity
https://www.readbyqxmd.com/read/29765019/relationship-between-circulating-vascular-endothelial-growth-factor-and-its-soluble-receptor-in-patients-with-hemorrhagic-fever-with-renal-syndrome
#5
Emil Pal, Misa Korva, Katarina Resman Rus, Nataša Kejžar, Petra Bogovič, Franc Strle, Tatjana Avšič-Županc
Hemorrhagic fever with renal syndrome (HFRS) is characterized by endothelial dysfunction with capillary leakage without obvious cytopathology in the capillary endothelium. The aim of the study was to analyze the kinetics of vascular endothelial growth factor (VEGF) and its soluble receptor (sVEGFR-2) in HFRS patients infected with Dobrava (DOBV) or Puumala virus (PUUV). VEGF and sVEGFR-2 levels were measured in daily plasma and urine samples of 73 patients with HFRS (58 with PUUV, 15 with DOBV) and evaluated in relation to clinical and laboratory variables...
May 16, 2018: Emerging Microbes & Infections
https://www.readbyqxmd.com/read/29760928/aneurysmal-subarachnoid-hemorrhage-intensive-care-for-improving-neurological-outcome
#6
REVIEW
Tomoya Okazaki, Yasuhiro Kuroda
Background: Aneurysmal subarachnoid hemorrhage is a life-threatening disease requiring neurocritical care. Delayed cerebral ischemia is a well-known complication that contributes to unfavorable neurological outcomes. Cerebral vasospasm has been thought to be the main cause of delayed cerebral ischemia, and although several studies were able to decrease cerebral vasospasm, none showed improved neurological outcomes. Our target is not cerebral vasospasm but improving neurological outcomes...
2018: Journal of Intensive Care
https://www.readbyqxmd.com/read/29760382/vaccine-elicited-receptor-binding-site-antibodies-neutralize-two-new-world-hemorrhagic-fever-arenaviruses
#7
Lars E Clark, Selma Mahmutovic, Donald D Raymond, Taleen Dilanyan, Takaaki Koma, John T Manning, Sundaresh Shankar, Silvana C Levis, Ana M Briggiler, Delia A Enria, Kai W Wucherpfennig, Slobodan Paessler, Jonathan Abraham
While five arenaviruses cause human hemorrhagic fevers in the Western Hemisphere, only Junin virus (JUNV) has a vaccine. The GP1 subunit of their envelope glycoprotein binds transferrin receptor 1 (TfR1) using a surface that substantially varies in sequence among the viruses. As such, receptor-mimicking antibodies described to date are type-specific and lack the usual breadth associated with this mode of neutralization. Here we isolate, from the blood of a recipient of the live attenuated JUNV vaccine, two antibodies that cross-neutralize Machupo virus with varying efficiency...
May 14, 2018: Nature Communications
https://www.readbyqxmd.com/read/29755085/-subdural-hematoma-after-open-heart-surgery-for-infective-endocarditis-presenting-with-pre-operative-intracranial-hemorrhage-infarction-report-of-a-case
#8
Ryuta Tai, Yosuke Kuroko, Makoto Mohri, Masakazu Yamaoka
A 47-year-old woman with a history of radiation enteritis and implantation of a central venous port was admitted to our intensive care unit(ICU) suffering from high fever. She was diagnosed with active infective endocarditis due to catheter-related blood stream infection. Although echocardiography showed a large vegetation on the mitral valve, surgical therapy was postponed for 5 weeks because of intracranial hemorrhage infarction. On the 3rd day after mitral valve repair, she developed consciousness disturbance and computed tomography(CT) revealed acute subdural hematoma of the posterior cranial fossa...
May 2018: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/29753850/role-of-mitogen-activated-protein-kinase-signaling-in-the-pathogenesis-of-dengue-virus-infection
#9
REVIEW
Gopinathan Pillai Sreekanth, Pa-Thai Yenchitsomanus, Thawornchai Limjindaporn
Dengue virus (DENV) infection is a disease that is endemic to many parts of the world, and its increasing prevalence ranks it among the diseases considered to be a significant threat to public health. The clinical manifestations of DENV infection range from mild dengue fever (DF) to more severe dengue hemorrhagic fever (DHF) and dengue shock syndrome (DSS). Increased proinflammatory cytokines and vascular permeability, both of which cause organ injury, are the hallmarks of severe dengue disease. Signs of liver injury were observed in studies using hepatic cell lines, mouse models, and autopsy specimens from DENV-infected patients, and these signs substantiated the effects of inflammatory responses and hepatic cell apoptosis...
May 10, 2018: Cellular Signalling
https://www.readbyqxmd.com/read/29752197/panophthalmitis-caused-by-streptococcus-dysgalactiae-subsp-equisimilis-a-case-report-and-literature-review
#10
Hideharu Hagiya, Takuya Semba, Takeshi Morimoto, Norihisa Yamamoto, Hisao Yoshida, Kazunori Tomono
Lancefield group G β-hemolytic Streptococcus dysgalactiae subspecies equisimilis (SDSE) has become a leading causative pathogen of invasive streptococcal infection. In this report, we describe a case of disseminated SDSE infection complicated by endogenous endophthalmitis, resulting in panophthalmitis and blindness. A 65-year-old man who underwent mitral valve replacement surgery two months previously was hospitalized due to high fever and right visual loss. A systemic investigation revealed endophthalmitis complicated by mediastinal abscess, prosthetic infective endocarditis, cerebral emboli and hemorrhage, and multiple arthritis...
May 8, 2018: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/29751873/acute-viral-hepatitis-beyond-a-b-and-c
#11
REVIEW
Venancio Avancini Ferreira Alves
From the standpoint of the surgical pathologist "hepatitis" is defined as the set of histologic patterns of lesions found in livers infected by hepatotropic viruses, by non-hepatotrophic viruses leading to liver inflammation in the context of systemic infection, or due to an autoimmune disease, drug, or toxin involving the liver. This article is centered on the histologic patterns of injury in acute viral hepatitis, encompassing the hepatotropic viruses A, B, C, D, and E and the "icteric hemorrhagic fevers" (dengue, hantavirus, yellow fever)...
June 2018: Surgical Pathology Clinics
https://www.readbyqxmd.com/read/29749915/continuous-infusion-of-low-dose-unfractionated-heparin-after-aneurysmal-subarachnoid-hemorrhage-a-preliminary-study-of-cognitive-outcomes
#12
Robert F James, Nicolas K Khattar, Zaid S Aljuboori, Paul S Page, Elaine Y Shao, Lacey M Carter, Kimberly S Meyer, Michael W Daniels, John Craycroft, John R Gaughen, M Imran Chaudry, Shesh N Rai, D Erik Everhart, J Marc Simard
OBJECTIVE Cognitive dysfunction occurs in up to 70% of aneurysmal subarachnoid hemorrhage (aSAH) survivors. Low-dose intravenous heparin (LDIVH) infusion using the Maryland protocol was recently shown to reduce clinical vasospasm and vasospasm-related infarction. In this study, the Montreal Cognitive Assessment (MoCA) was used to evaluate cognitive changes in aSAH patients treated with the Maryland LDIVH protocol compared with controls. METHODS A retrospective analysis of all patients treated for aSAH between July 2009 and April 2014 was conducted...
May 11, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29745301/comparative-genome-analysis-of-alkhumra-hemorrhagic-fever-virus-with-kyasanur-forest-disease-and-tick-borne-encephalitis-viruses-by-the-in-silico-approach
#13
Navaneethan Palanisamy, Dario Akaberi, Johan Lennerstrand, Åke Lundkvist
Alkhumra hemorrhagic fever virus (AHFV), a relatively new member of the Flaviviruses, was discovered in Saudi Arabia 23 years ago. AHFV is classified in the tick-borne encephalitis virus serocomplex, along with the Kyasanur forest disease virus (KFDV) and tick-borne encephalitis virus (TBEV). Currently, very little is known about the pathologies of AHFV. In this study, using the available genome information of AHFV, KFDV and TBEV, we have predicted and compared the following aspects of these viruses: evolution, nucleotide and protein compositions, recombination, codon frequency, substitution rate, N- and O-glycosylation sites, signal peptide and cleavage site, transmembrane region, secondary structure of 5' and 3' UTRs and RNA-RNA interactions...
May 10, 2018: Pathogens and Global Health
https://www.readbyqxmd.com/read/29744128/fatal-case-of-amoebic-encephalitis-masquerading-as-herpes
#14
Rikesh Baral, Binit Vaidya
Primary amoebic meningoencephalitis (PAM) is a rare, fulminating, hemorrhagic infection of the brain caused by Naegleria fowleri , a thermophilic, free-living amoeba. A 74-year male presented with sudden severe global headache and fever with features of anomic aphasia. Magnetic resonance imaging (MRI) suggested herpes encephalitis and acyclovir (IV) was started but the patient developed altered sensorium, agitation and progressive weakness of lower limbs with gradual truncal weakness. Repeat MRI showed increase in lesion size and edema with confluent blood areas...
May 2018: Oxford Medical Case Reports
https://www.readbyqxmd.com/read/29743115/geographical-distribution-and-relative-risk-of-anjozorobe-virus-thailand-orthohantavirus-infection-in-black-rats-rattus-rattus-in-madagascar
#15
Vololoniaina Raharinosy, Marie-Marie Olive, Fehivola Mandanirina Andriamiarimanana, Soa Fy Andriamandimby, Jean-Pierre Ravalohery, Seta Andriamamonjy, Claudia Filippone, Danielle Aurore Doll Rakoto, Sandra Telfer, Jean-Michel Heraud
BACKGROUND: Hantavirus infection is a zoonotic disease that is associated with hemorrhagic fever with renal syndrome and cardiopulmonary syndrome in human. Anjozorobe virus, a representative virus of Thailand orthohantavirus (THAIV), was recently discovered from rodents in Anjozorobe-Angavo forest in Madagascar. To assess the circulation of hantavirus at the national level, we carried out a survey of small terrestrial mammals from representative regions of the island and identified environmental factors associated with hantavirus infection...
May 9, 2018: Virology Journal
https://www.readbyqxmd.com/read/29727450/rift-valley-fever-viral-load-correlates-with-the-human-inflammatory-response-and-coagulation-pathway-abnormalities-in-humans-with-hemorrhagic-manifestations
#16
Annabelle de St Maurice, Jessica Harmon, Luke Nyakarahuka, Stephen Balinandi, Alex Tumusiime, Jackson Kyondo, Sophia Mulei, Annemarion Namutebi, Barbara Knust, Trevor Shoemaker, Stuart T Nichol, Anita K McElroy, Christina F Spiropoulou
Rift Valley fever virus is an arbovirus that affects both livestock and humans throughout Africa and in the Middle East. Despite its endemicity throughout Africa, it is a rare event to identify an infected individual during the acute phase of the disease and an even rarer event to collect serial blood samples from the affected patient. Severely affected patients can present with hemorrhagic manifestations of disease. In this study we identified three Ugandan men with RVFV disease that was accompanied by hemorrhagic manifestations...
May 4, 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29724249/crimean-congo-hemorrhagic-fever-with-hepatic-impairment-and-vaginal-hemorrhage-a-case-report
#17
Ermira Muco, Najada Como, Siva Bino, Arjan Harxhi, Pellumb Pipero, Majlinda Kota, Jonida Mehmeti, Arta Kushi, Dhimiter Kraja
BACKGROUND: Crimean-Congo hemorrhagic fever is a tick-borne disease described in more than 30 countries in Europe, Asia, and Africa. Albania is located in the southwestern part of the Balkan Peninsula. In 1986, the first case of Crimean-Congo hemorrhagic fever was registered, and cases of patients with hemorrhagic fever are rising, and most of them present in a serious condition, when the mortality rate is very high. In districts like Mirdite, Lezhe, Gjirokaster, Skrapar, Erseke, and Kukes, there is delineated human-to-human transmission...
May 4, 2018: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/29724035/involvement-of-pro-inflammatory-macrophages-in-liver-pathology-of-pirital-virus-infected-syrian-hamsters
#18
Corey L Campbell, Aaron T Phillips, Amber Rico, Amanda McGuire, Tawfik A Aboellail, Sandra Quackenbush, Ken E Olson, Tony Schountz
New World arenaviruses cause fatal hemorrhagic disease in South America. Pirital virus (PIRV), a mammarenavirus hosted by Alston’s cotton rat ( Sigmodon alstoni ), causes a disease in Syrian golden hamsters ( Mesocricetus auratus ) (biosafety level-3, BSL-3) that has many pathologic similarities to the South American hemorrhagic fevers (BSL-4) and, thus, is considered among the best small-animal models for human arenavirus disease. Here, we extend in greater detail previously described clinical and pathological findings in Syrian hamsters and provide evidence for a pro-inflammatory macrophage response during PIRV infection...
May 2, 2018: Viruses
https://www.readbyqxmd.com/read/29721399/emergency-management-of-spontaneous-bacterial-peritonitis-a-clinical-review
#19
REVIEW
Tracy MacIntosh
Spontaneous bacterial peritonitis (SBP) has a high mortality rate; early antimicrobial therapy is essential for improving patient outcomes. Given that cirrhotic patients are often coagulopathic, the perceived risk of bleeding may prevent providers from performing a paracentesis and ruling out this potentially deadly disease. We examine the pathophysiology and risk factors for SBP, and current guidelines for its diagnosis and treatment. We then review the time-sensitive nature of performing a paracentesis, and the current controversies and contraindications for performing this procedure in patients at risk for SBP...
March 1, 2018: Curēus
https://www.readbyqxmd.com/read/29720525/antibodies-to-the-glycoprotein-gp2-subunit-cross-react-between-old-and-new-world-arenaviruses
#20
Fatima Amanat, James Duehr, Lisa Oestereich, Kathryn M Hastie, Erica Ollmann Saphire, Florian Krammer
Arenaviruses pose a major public health threat and cause numerous infections in humans each year. Although most viruses belonging to this family do not cause disease in humans, some arenaviruses, such as Lassa virus and Machupo virus, are the etiological agents of lethal hemorrhagic fevers. The absence of a currently licensed vaccine and the highly pathogenic nature of these viruses both make the necessity of developing viable vaccines and therapeutics all the more urgent. Arenaviruses have a single glycoprotein on the surface of virions, the glycoprotein complex (GPC), and this protein can be used as a target for vaccine development...
June 27, 2018: MSphere
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