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https://www.readbyqxmd.com/read/28445776/antimicrobial-resistance-in-the-bacteroides-fragilis-group-in-faecal-samples-from-patients-receiving-broad-spectrum-antibiotics
#1
Kia Cirkeline Møller Hansen, Simon A F Schwensen, Daniel Pilsgaard Henriksen, Ulrik Stenz Justesen, Thomas Vognbjerg Sydenham
Members of the Bacteroides fragilis group are opportunistic pathogens and cause severe infections including bacteraemia. As increased levels of antimicrobial resistance in B. fragilis group bacteria can be detected years after administration of specific antibiotics, monitoring antimicrobial susceptibility in the gut microbiota could be important. The objectives of this study were to 1) investigate the distribution of species and the occurrence of reduced antimicrobial susceptibility in the B. fragilis group from patients treated at departments with a high level of antibiotic use, 2) to determine the prevalence of the carbapenem resistance gene cfiA in B...
April 23, 2017: Anaerobe
https://www.readbyqxmd.com/read/28445704/development-of-standard-methods-for-zika-virus-propagation-titration-and-purification
#2
Sharton Vinicius Antunes Coelho, Rômulo Leão Silva Neris, Michelle Premazzi Papa, Laila Castro Schnellrath, Lana Monteiro Meuren, Diogo A Tschoeke, Luciana Leomil, Brunno Renato Farias Verçoza, Milene Miranda, Fabiano L Thompson, Andrea Thompson Da Poian, Thiago Moreno L Souza, Fabiana Avila Carneiro, Clarissa R Damaso, Iranaia Assunção-Miranda, Luciana Barros de Arruda
The emergence of Zika virus (ZIKV) infection has stimulated several research groups to study and collaborate to understand virus biology and pathogenesis. These efforts may assist with the development of antiviral drugs, vaccines and diagnostic tests, as well as to promote advancements in public health policies. Here, we aim to develop standard protocols for propagation, titration, and purification of Asian and Brazilian ZIKV strains, by systematically testing different cell types, kinetics, multiplicity of infection and centrifugation protocols...
April 23, 2017: Journal of Virological Methods
https://www.readbyqxmd.com/read/28445322/validation-of-prognostic-scores-to-predict-short-term-mortality-in-patients-with-hbv-related-acute-on-chronic-liver-failure-the-clif-c-of-is-superior-to-meld-clif-sofa-and-clif-c-aclf
#3
Ning Li, Chong Huang, Kang-Kang Yu, Qing Lu, Guang-Feng Shi, Jian-Ming Zheng
Acute-on-chronic liver failure (ACLF) in chronic hepatitis B (CHB) patients has a high short-term mortality. Identification of effective models to predict the short-term mortality may enable early intervention and improve patients' prognosis. We aim to assess the performance of the CLIF Consortium Organ Failure score (CLIF-C OFs), CLIF sequential organ failure assessment score (CLIF-SOFAs), CLIF Consortium ACLF score (CLIF-C ACLFs), ACLF grade, and model for end-stage liver disease score (MELDs) in predicting the short-term mortality in CHB patients with ACLF...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28444539/association-of-the-oas3-rs1859330-g-a-genetic-polymorphism-with-severity-of-enterovirus-71-infection-in-chinese-han-children
#4
Yuxia Tan, Tingting Yang, Peipei Liu, Liping Chen, Qingwu Tian, Ya Guo, Hongfang He, Yedan Liu, Zongbo Chen
The 2'5'-oligoadenylate synthetase (OAS) is an interferon (IFN)-induced protein that plays an important role in the antiviral action of IFN, with OAS3 being one of the four OAS classes (OAS1, OAS2, OAS3, OASL). The effect of OAS on several infectious viral diseases has been reported; however, a study of the effect of OAS3 on enterovirus 71 (EV71) is lacking. The purpose of this study was to evaluate the association of the OAS3 rs1859330 G/A genetic polymorphism with susceptibility and severity of EV71 infection...
April 25, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28442418/tlr22-structure-and-expression-characteristic-of-barbel-chub-squaliobarbus-curriculus-provides-insights-into-antiviral-immunity-against-infection-with-grass-carp-reovirus
#5
Rong-Hua Wang, Wei Li, Yu-Ding Fan, Qiao-Lin Liu, Ling-Bing Zeng, Tiao-Yi Xiao
Grass carp reovirus (GCRV) is the most virulent agent to Grass carp, Ctenopharyngodon idella, and causes a severe infectious disease called hemorrhagic disease of grass carp. Generally, barbel chub, Squaliobarbus curriculus, a genetically closely related species to grass carp, exhibits significant resistance against GCRV infection compared to grass carp. To investigate whether the Toll-like receptor 22 (tlr22) has got a vital role against the GCRV infection, the full cDNA sequence of tlr22 from barbel chub (Sctlr22) was cloned by RACE-PCR, and the structure and expression feature were studied...
April 22, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28442241/molecular-detection-and-phylogenetic-analysis-of-severe-fever-with-thrombocytopenia-syndrome-virus-in-shelter-dogs-and-cats-in-the-republic-of-korea
#6
Seung-Hun Lee, Hyun-Joo Kim, Jae-Won Byun, Min-Jung Lee, Neung-Hee Kim, Doo-Hwan Kim, Hae-Eun Kang, Hyang-Mi Nam
Severe fever with thrombocytopenia syndrome is a tick-borne infectious disease. The present study investigated the prevalence of severe fever with thrombocytopenia syndrome virus (SFTSV) in shelter dogs and cats in the Republic of Korea (ROK). Blood samples were collected from 426 dogs and 215 cats in animal shelters throughout the ROK in 2016. Of the tested samples, one (0.2%) dog and one (0.5%) cat were positive for SFTSV. Phylogenetic analysis of the sequences obtained in the present study showed that the viruses belonged to the J3 clade, which is considered the dominant clade in the ROK...
April 14, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28440985/-early-neonatal-sepsis-and-associated-factors
#7
Roberto Anaya-Prado, Cuauhtémoc Valero-Padilla, Augusto Sarralde-Delgado, Jorge Manuel Sánchez-González
BACKGROUND: Early-onset neonatal sepsis (EONS) is an infectious disease of low incidence but high morbidity and mortality with severe consequences to the newborn prognosis. Identifying the associated factors related to EONS allows to start a timely treatment and to take preventive measures. METHODS: In this case and controls study we identified all the newborns (NB) with and without EONS (cases and controls), diagnosed through blood culture in a period of three years...
May 2017: Revista Médica del Instituto Mexicano del Seguro Social
https://www.readbyqxmd.com/read/28440839/refugee-health-and-rehabilitation-challenges-and-response
#8
Fary Khan, Bhasker Amatya
BACKGROUND: The current global refugee crisis poses major challenges in providing effective healthcare to refugees, particularly for non-communicable diseases (NCDs) management and disability. This article provides an overview of refugee health and potential challenges from the rehabilitation perspective. METHODS: A literature search (both academic and grey literature) was conducted using medical and health science electronic databases and internet search engines (2001-2016)...
April 21, 2017: Journal of Rehabilitation Medicine
https://www.readbyqxmd.com/read/28440755/dysfunctional-immunometabolic-effects-of-vitamin-d-deficiency-increased-cardiometabolic-risk-potential-epidemiological-alert-in-america
#9
Martin Rosas-Peralta, Michael F Holick, Gabriela Borrayo-Sánchez, Alejandra Madrid-Miller, Erick Ramírez-Árias, Efrain Arizmendi-Uribe
Vitamin D deficiency is a serious public health problem worldwide that affects not only skeletal health, but also a wide range of acute and chronic diseases. However, there is still skepticism because of the lack of randomized, controlled trials to support association studies on the benefits of vitamin D for non-skeletal health. This review was based on articles published during the 1980-2015 obtained from the Cochrane Central Register of controlled trials, MEDLINE and PubMed, and focuses on recent challenges with regard to the definition of vitamin D deficiency and how to achieve optimal serum 25-hydroxyvitamin D levels from dietary sources, supplements, and sun exposure...
March 2017: Endocrinol Diabetes Nutr
https://www.readbyqxmd.com/read/28438919/ecosystem-change-and-human-health-implementation-economics-and-policy
#10
REVIEW
S K Pattanayak, R A Kramer, J R Vincent
Several recent initiatives such as Planetary Health, EcoHealth and One Health claim that human health depends on flourishing natural ecosystems. However, little has been said about the operational and implementation challenges of health-oriented conservation actions on the ground. We contend that ecological-epidemiological research must be complemented by a form of implementation science that examines: (i) the links between specific conservation actions and the resulting ecological changes, and (ii) how this ecological change impacts human health and well-being, when human behaviours are considered...
June 5, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28438909/interacting-effects-of-land-use-and-climate-on-rodent-borne-pathogens-in-central-kenya
#11
Hillary S Young, Douglas J McCauley, Rodolfo Dirzo, Charles L Nunn, Michael G Campana, Bernard Agwanda, Erik R Otarola-Castillo, Eric R Castillo, Robert M Pringle, Kari E Veblen, Daniel J Salkeld, Kristin Stewardson, Robert Fleischer, Eric F Lambin, Todd M Palmer, Kristofer M Helgen
Understanding the effects of anthropogenic disturbance on zoonotic disease risk is both a critical conservation objective and a public health priority. Here, we evaluate the effects of multiple forms of anthropogenic disturbance across a precipitation gradient on the abundance of pathogen-infected small mammal hosts in a multi-host, multi-pathogen system in central Kenya. Our results suggest that conversion to cropland and wildlife loss alone drive systematic increases in rodent-borne pathogen prevalence, but that pastoral conversion has no such systematic effects...
June 5, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28438705/tigr4-strain-causes-more-severe-disease-than-wu2-strain-in-a-mouse-model-of-streptococcus-pneumoniae-meningitis-a-common-pathogenic-role-for-interferon-%C3%AE
#12
Belinda Yau, Lay Khoon Too, Helen J Ball, Nicholas H Hunt
Streptococcus pneumoniae (S. pneumoniae) meningitis causes debilitating neurological symptoms and acute fatalities in patients, and long-term neurological sequelae in some survivors. Current vaccines do not protect against all 94 known S. pneumoniae capsular serotypes, many of which are capable of causing pneumococcal meningitis (PM). We here compare the pathogenic outcomes of two clinically virulent isolates of S. pneumoniae, serotype 3 strain WU2 and serotype 4 strain TIGR4, in a murine model of PM. At an identical infectious dosage of 10(3) CFU administered via the intracerebroventricular route, significantly greater mortality, interleukin (IL)1β and IL6 production, and blood-brain barrier dysfunction occurred in TIGR4-induced PM compared to PM caused by WU2...
April 21, 2017: Microbes and Infection
https://www.readbyqxmd.com/read/28438213/cervid-herpesvirus-2-and-not-moraxella-bovoculi-caused-keratoconjunctivitis-in-experimentally-inoculated-semi-domesticated-eurasian-tundra-reindeer
#13
Morten Tryland, Javier Sánchez Romano, Nina Marcin, Ingebjørg Helena Nymo, Terje Domaas Josefsen, Karen Kristine Sørensen, Torill Mørk
BACKGROUND: Infectious keratoconjunctivitis (IKC) is a transmissible disease in semi-domesticated Eurasian reindeer (Rangifer tarandus tarandus). It is regarded as multifactorial and a single causative pathogen has not yet been identified. From clinical outbreaks we have previously identified Cervid herpesvirus 2 (CvHV2) and Moraxella bovoculi as candidates for experimental investigations. Eighteen reindeer were inoculated in the right eye with CvHV2 (n = 5), M. bovoculi (n = 5), CvHV2 and M...
April 24, 2017: Acta Veterinaria Scandinavica
https://www.readbyqxmd.com/read/28438186/mortality-and-infectious-complications-of-therapeutic-endovascular-interventional-radiology-a-systematic-and-meta-analysis-protocol
#14
Kaoutar Mellouk Aid, Hervé Tchala Vignon Zomahoun, Abdelmajid Soulaymani, Karin Lebascle, Stephane Silvera, Pascal Astagneau, Benoit Misset
BACKGROUND: Endovascular interventional radiology (EIR) is an increasingly popular, mini invasive treatment option for patient with symptomatic vascular disease. The EIR practiced by qualified hands is an effective, well-tolerated procedure that offers relief of patient's symptoms with a low risk of complications. During acute post procedural period, immediate complications may relate to vascular access, restenosis, thromboembolic events, uterine ischemia, infection, necrosis, sepsis, ICU stay, surgical recovery, pain management, treatment failure, and death...
April 24, 2017: Systematic Reviews
https://www.readbyqxmd.com/read/28437843/a-bayesian-belief-network-model-assessing-the-risk-to-wastewater-workers-of-contracting-ebola-virus-disease-during-an-outbreak
#15
Joseph W Zabinski, Kelsey J Pieper, Jacqueline MacDonald Gibson
During an outbreak of Ebola virus disease (EVD), hospitals' connections to municipal wastewater systems may provide a path for patient waste bearing infectious viral particles to pass from the hospital into the wastewater treatment system, potentially posing risks to sewer and wastewater workers. To quantify these risks, we developed a Bayesian belief network model incorporating data on virus behavior and survival along with structural characteristics of hospitals and wastewater treatment systems. We applied the model to assess risks under several different scenarios of workers' exposure to wastewater for a wastewater system typical of a mid-sized U...
April 24, 2017: Risk Analysis: An Official Publication of the Society for Risk Analysis
https://www.readbyqxmd.com/read/28437813/presenting-symptoms-of-pituitary-apoplexy
#16
Efstratios-Stylianos Pyrgelis, Ioannis Mavridis, Maria Meliou
The classical term "pituitary apoplexy" (PA) describes a clinical syndrome usually characterized by abrupt onset of headache accompanied by neurologic and/or endocrinologic deterioration due to sudden expansion of a mass within the sella turcica as a result of hemorrhage or infarction within a pituitary tumor and adjacent pituitary gland. PA is a medical emergency and a difficult diagnosis to establish. Thus this article reviews the presenting symptoms of PA patients to help clinicians recognize or at least suspect this critical condition early on...
April 24, 2017: Journal of Neurological Surgery. Part A, Central European Neurosurgery
https://www.readbyqxmd.com/read/28437091/speeding-up-early-drug-discovery-in-antiviral-research-a-fragment-based-in-silico-approach-for-the-design-of-virtual-anti-hepatitis-c-leads
#17
Alejandro Speck-Planche, M Natalia Dias Soeiro Cordeiro
Hepatitis C constitutes an unresolved global health problem. This infectious disease is caused by the hepatotropic hepatitis C virus (HCV), and it can lead to the occurrence of life-threatening medical conditions such as cirrhosis and liver cancer. Nowadays, major clinical concerns have arisen due to the appearance of multidrug resistance (MDR), and the side effects especially associated with long-term treatments. In this work, we report the first multitasking model for quantitative structure-biological effect relationships (mtk-QSBER), focused on the simultaneous exploration of anti-HCV activity and in vitro safety profiles related to the absorption, distribution, metabolism, elimination, and toxicity (ADMET)...
April 24, 2017: ACS Combinatorial Science
https://www.readbyqxmd.com/read/28435839/the-frequency-of-yeast-psi-prion-formation-is-increased-during-chronological-ageing
#18
Shaun H Speldewinde, Chris M Grant
Ageing involves a time-dependent decline in a variety of intracellular mechanisms and is associated with cellular senescence. This can be exacerbated by prion diseases which can occur in a sporadic manner, predominantly during the later stages of life. Prions are infectious, self-templating proteins responsible for several neurodegenerative diseases in mammals and several prion-forming proteins have been found in yeast. We show here that the frequency of formation of the yeast [PSI(+) ] prion, which is the altered form of the Sup35 translation termination factor, is increased during chronological ageing...
March 27, 2017: Microbial Cell
https://www.readbyqxmd.com/read/28435330/first-case-of-imported-chikungunya-infection-in-croatia-2016
#19
Boris Luksic, Nenad Pandak, Edita Drazic-Maras, Svjetlana Karabuva, Mislav Radic, Andrea Babic-Erceg, Ljubo Barbic, Vladimir Stevanovic, Tatjana Vilibic-Cavlek
In recent years, several European countries reported cases of imported chikungunya infection. We present the first imported clinically manifested chikungunya fever in Croatia. A 27-year-old woman returned to Croatia on 21 March 2016, after she stayed in Costa Rica for two months where she had noticed a mosquito bite on her left forearm. Five days after the mosquito bite she developed severe arthralgias, fever and erythematous papular rash. In next few days symptoms gradually subsided. After ten days she felt better, but arthralgias re-appeared accompanied with morning stiffness...
2017: International Medical Case Reports Journal
https://www.readbyqxmd.com/read/28434776/a-patient-who-made-an-impact-on-how-i-practice-severe-leptospirosis-presenting-as-ards-in-the-icu
#20
Evangelia S Panagiotidou, Sofia V Akritidou, Seraphim T Kotoulas, Evdokia K Sourla, Basilis G Mpikos, Basilis P Bagalas, Ioannis T Stanopoulos, Katalin M Fekete, Athanasia D Pataka
Severe leptospirosis can be a rare cause of acute respiratory distress syndrome (ARDS) and multiorgan failure. A patient who made an impact on how I practice was a case of severe leptospirosis (Weil's disease) that presented as ARDS in the ICU. Leptospirosis is an under-reported infectious disease worldwide and should be considered as a cause of ARDS especially in patients with exposure history complicated with diffuse alveolar bleeding (DAH), icteric hepatitis and renal deterioration. Empiric treatment should be recommended before confirmation of laboratory tests as serological diagnosis is time consuming...
April 20, 2017: Journal of Infection and Public Health
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