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https://www.readbyqxmd.com/read/28098908/protective-effects-of-ethyl-pyruvate-on-lipopolysaccharide%C3%A2-induced-acute-lung-injury-through-inhibition-of-autophagy-in-neutrophils
#1
Qingteng Zhu, Hui Wang, Hairong Wang, Yong Luo, Yang Yu, Qirong Du, Aihua Fei, Shuming Pan
Among a number of clinical factors, bacterial infection is one of the most common causes of acute lung injury (ALI), a serious complication that carries a high risk of mortality (~40%). During the process of ALI, intense local and systemic inflammation is elicited, which exacerbates the injury. Neutrophil infiltration into airspace is observed in early stage of ALI, and is required for the full development of ALI through an array of mechanisms, including the release of granule contents and the production of pro‑inflammatory cytokines, due to the overactivation of complement and cytokines...
January 13, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28098808/infectious-bursal-disease-virus-host-interactions-multifunctional-viral-proteins-that-perform-multiple-and-differing-jobs
#2
REVIEW
Yao Qin, Shijun J Zheng
Infectious bursal disease (IBD) is an acute, highly contagious and immunosuppressive poultry disease caused by IBD virus (IBDV). The consequent immunosuppression increases susceptibility to other infectious diseases and the risk of subsequent vaccination failure as well. Since the genome of IBDV is relatively small, it has a limited number of proteins inhibiting the cellular antiviral responses and acting as destroyers to the host defense system. Thus, these virulence factors must be multifunctional in order to complete the viral replication cycle in a host cell...
January 14, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28098800/characterization-of-the-transcriptome-and-gene-expression-of-brain-tissue-in-sevenband-grouper-hyporthodus-septemfasciatus-in-response-to-nnv-infection
#3
Jong-Oh Kim, Jae-Ok Kim, Wi-Sik Kim, Myung-Joo Oh
Grouper is one of the favorite sea food resources in Southeast Asia. However, the outbreaks of the viral nervous necrosis (VNN) disease due to nervous necrosis virus (NNV) infection have caused mass mortality of grouper larvae. Many aqua-farms have suffered substantial financial loss due to the occurrence of VNN. To better understand the infection mechanism of NNV, we performed the transcriptome analysis of sevenband grouper brain tissue, the main target of NNV infection. After artificial NNV challenge, transcriptome of brain tissues of sevenband grouper was subjected to next generation sequencing (NGS) using an Illumina Hi-seq 2500 system...
January 13, 2017: Genes
https://www.readbyqxmd.com/read/28098629/right-dose-right-now-customized-drug-dosing-in-the-critically-ill
#4
Jason A Roberts, Anand Kumar, Jeffrey Lipman
Drugs are key weapons that clinicians have to battle against the profound pathologies encountered in critically ill patients. Antibiotics in particular are commonly used and can improve patient outcomes dramatically. Despite this, there are strong opportunities for further reducing the persisting poor outcomes for infected critically ill patients. However, taking these next steps for improving patient care requires a new approach to antibiotic therapy. Giving the right dose is highly likely to increase the probability of clinical cure from infection and suppress the emergence of resistant pathogens...
February 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28098591/surviving-sepsis-campaign-international-guidelines-for-management-of-sepsis-and-septic-shock-2016
#5
Andrew Rhodes, Laura E Evans, Waleed Alhazzani, Mitchell M Levy, Massimo Antonelli, Ricard Ferrer, Anand Kumar, Jonathan E Sevransky, Charles L Sprung, Mark E Nunnally, Bram Rochwerg, Gordon D Rubenfeld, Derek C Angus, Djillali Annane, Richard J Beale, Geoffrey J Bellinghan, Gordon R Bernard, Jean-Daniel Chiche, Craig Coopersmith, Daniel P De Backer, Craig J French, Seitaro Fujishima, Herwig Gerlach, Jorge Luis Hidalgo, Steven M Hollenberg, Alan E Jones, Dilip R Karnad, Ruth M Kleinpell, Younsuk Koh, Thiago Costa Lisboa, Flavia R Machado, John J Marini, John C Marshall, John E Mazuski, Lauralyn A McIntyre, Anthony S McLean, Sangeeta Mehta, Rui P Moreno, John Myburgh, Paolo Navalesi, Osamu Nishida, Tiffany M Osborn, Anders Perner, Colleen M Plunkett, Marco Ranieri, Christa A Schorr, Maureen A Seckel, Christopher W Seymour, Lisa Shieh, Khalid A Shukri, Steven Q Simpson, Mervyn Singer, B Taylor Thompson, Sean R Townsend, Thomas Van der Poll, Jean-Louis Vincent, W Joost Wiersinga, Janice L Zimmerman, R Phillip Dellinger
OBJECTIVE: To provide an update to "Surviving Sepsis Campaign Guidelines for Management of Sepsis and Septic Shock: 2012." DESIGN: A consensus committee of 55 international experts representing 25 international organizations was convened. Nominal groups were assembled at key international meetings (for those committee members attending the conference). A formal conflict-of-interest (COI) policy was developed at the onset of the process and enforced throughout. A stand-alone meeting was held for all panel members in December 2015...
January 17, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28098115/a-novel-fibrillin-1-mutation-in-an-egyptian-marfan-family-a-proband-showing-nephrotic-syndrome-due-to-focal-segmental-glomerulosclerosis
#6
Mohammad Al-Haggar, Ashraf Bakr, Yahya Wahba, Paul J Coucke, Fatma El-Hussini, Mona Hafez, Riham Eid, Abdel-Rahman Eid, Amr Sarhan, Ali Shaltout, Ayman Hammad, Sohier Yahia, Ahmad El-Rifaie, Dina Abdel-Hadi
Marfan syndrome (MFS), the founding member of connective tissue disorder, is an autosomal dominant disease; it is caused by a deficiency of the microfibrillar protein fibrillin-1 (FBN1) and characterized by involvement of three main systems; skeletal, ocular, and cardiovascular. More than one thousand mutations in FBN1 gene on chromosome 15 were found to cause MFS. Nephrotic syndrome (NS) had been described in very few patients with MFS being attributed to membranoproliferative glomerulonephritis secondary to infective endocarditis...
January 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28097858/-the-current-status-of-patient-safety-in-argentina-cross-sectional-study
#7
Lucrecia Arpí, Néstor D Panattieri, Cristina Godio, Verónica Sabio Paz, Nora Dackiewicz
BACKGROUND: Patient safety is a priority for healthcare organizations. For the PRONAP´s 2013 final exam, the Quality & Patient Safety Subcommittee and the PRONAP managers designed a survey to be answered by pediatrician students nationwide. It was destined to evaluate attitudes, practices and safety conditions in which they worked. AIM: To assess the current state of practices in patient safety. MATERIAL AND METHODS: Setting and sample: PRONAP students (7,438 pediatrician nationwide) who answered 2013 final exam...
February 1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28097745/immature-core-protein-of-hepatitis-c-virus-induces-an-unfolded-protein-response-through-inhibition-of-erad-l-in-a-yeast-model-system
#8
Shota Takahashi, Naoko Sato, Junichi Kikuchi, Hideaki Kakinuma, Jun Okawa, Yukiko Masuyama, Singo Iwasa, Hayato Irokawa, Gi-Wook Hwang, Akira Naganuma, Michinori Kohara, Shusuke Kuge
The structural protein Core of hepatitis C virus (HCV), a cytosolic protein, induces endoplasmic reticulum (ER) stress and unfolded protein response (UPR) in hepatocytes, and is responsible for the pathogenesis of persistent HCV infection. Using yeast as a model system, we evaluated mechanisms underlying Core-induced interference of ER homeostasis and UPR, and found that UPR is induced by the immature Core (aa 1-191, Core191) but not by the mature Core (aa 1-177, Core177). Interestingly, Core191 inhibits both ERAD-L, a degradation system responsible for misfolded/unfolded proteins in the ER lumen, and ERAD-M, a degradation system responsible for proteins carrying a misfolded/unfolded region in the ER membrane...
January 18, 2017: Genes to Cells: Devoted to Molecular & Cellular Mechanisms
https://www.readbyqxmd.com/read/28097418/heterogeneous-network-epidemics-real-time-growth-variance-and-extinction-of-infection
#9
Frank Ball, Thomas House
Recent years have seen a large amount of interest in epidemics on networks as a way of representing the complex structure of contacts capable of spreading infections through the modern human population. The configuration model is a popular choice in theoretical studies since it combines the ability to specify the distribution of the number of contacts (degree) with analytical tractability. Here we consider the early real-time behaviour of the Markovian SIR epidemic model on a configuration model network using a multitype branching process...
January 17, 2017: Journal of Mathematical Biology
https://www.readbyqxmd.com/read/28097270/prospective-study-analyzing-risk-factors-and-characteristics-of-healthcare-associated-infections-in-a-urology-ward
#10
José Medina-Polo, Raquel Sopeña-Sutil, Raúl Benítez-Sala, Alba Lara-Isla, Manuel Alonso-Isa, Javier Gil-Moradillo, Juan Justo-Quintas, Esther García-Rojo, Daniel Antonio González-Padilla, Juan Bautista Passas-Martínez, Ángel Tejido-Sánchez
PURPOSE: Healthcare-associated infections (HAIs) in urological patients have special features due to specific risk factors. Our objective was to evaluate the characteristics and risk factors for HAIs in patients hospitalized in a Urology ward. MATERIALS AND METHODS: We evaluated prospectively, from 2012 to 2015, the incidence, types and risk factor for HAIs, microbiological and resistance patterns. RESULTS: The incidence of HAIs was 6.3%. The most common types were urinary infections (70...
January 2017: Investigative and Clinical Urology
https://www.readbyqxmd.com/read/28097116/kikuchi-fujimoto-disease-misdiagnosed-as-relapse-of-the-infection-after-treatment-of-periprosthetic-hip-joint-infection
#11
Kyung-Keun Min, Byung-Woo Min, Kyung-Jae Lee, Jung-Hoon Choi
Periprosthetic joint infection (PJI) of the hip can be difficult to treat and can lead to a number of problems including: i) severe functional decline of the hip joint and ii) increasing financial burden for patients due to long treatment periods and the need for repeated surgical interventions. Because there is risk of inadequate control of infection or relapse of a preexisting infection following the treatment of PJI through surgery, it is important to closely observe clinical symptoms such as systemic fever...
December 2016: Hip & Pelvis
https://www.readbyqxmd.com/read/28097092/comparative-interactomics-for-virus-human-protein-protein-interactions-dna-viruses-versus-rna-viruses
#12
Saliha Durmuş, Kutlu Ö Ülgen
Viruses are obligatory intracellular pathogens and completely depend on their hosts for survival and reproduction. The strategies adopted by viruses to exploit host cell processes and to evade host immune systems during infections may differ largely with the type of the viral genetic material. An improved understanding of these viral infection mechanisms is only possible through a better understanding of the pathogen-host interactions (PHIs) that enable viruses to enter into the host cells and manipulate the cellular mechanisms to their own advantage...
January 2017: FEBS Open Bio
https://www.readbyqxmd.com/read/28096973/a-fission-yeast-cell-based-system-for-multidrug-resistant-hiv-1-proteases
#13
Zsigmond Benko, Dong Liang, Ge Li, Robert T Elder, Anindya Sarkar, Jun Takayama, Arun K Ghosh, Richard Y Zhao
BACKGROUND: HIV-1 protease (PR) is an essential enzyme for viral production. Thus, PR inhibitors (PIs) are the most effective class of anti-HIV drugs. However, the main challenge to the successful use of PI drugs in patient treatment is the emergence of multidrug resistant PRs (mdrPRs). This study aimed to develop a fission yeast cell-based system for rapid testing of new PIs that combat mdrPRs. RESULTS: Three mdrPRs were isolated from HIV-infected patients that carried seven (M7PR), ten (M10PR) and eleven (M11PR) PR gene mutations, respectively...
2017: Cell & Bioscience
https://www.readbyqxmd.com/read/28096864/feline-dirofilariosis-due-to-dirofilaria-immitis-in-meshkin-shahr-district-northwestern-iran
#14
Mahya Khodabakhsh, Abdolali Malmasi, Mehdi Mohebali, Zabihollah Zarei, Eshrat Beigom Kia, Amrollah Azarm
BACKGROUND: Dirofilaria immitis is a common nematode of the cardiovascular system, which infects carnivores all over the world. The infection is prevalent in dogs, but in cats and human is rare. Dirofilariosis is transmitted by mosquitoes. Cats are accidental hosts and are naturally resistant to the infection, compared to the dogs. Mild infection can cause severe illness in cats and may lead to death, so it is clinically important to diagnose the disease. METHODS: In the present study, 103 stray cats were collected from Meshkin Shahr district, Aradabil Province, northwestern Iran that is an endemic area for canine dirofilariosis...
April 2016: Iranian Journal of Parasitology
https://www.readbyqxmd.com/read/28096698/burkitt-lymphoma-in-adolescents-and-young-adults-management-challenges
#15
REVIEW
Massimo Dozzo, Francesca Carobolante, Pietro Maria Donisi, Annamaria Scattolin, Elena Maino, Rosaria Sancetta, Piera Viero, Renato Bassan
About one-half of all Burkitt lymphoma (BL) patients are younger than 40 years, and one-third belong to the adolescent and young adult (AYA) subset, defined by an age between 15 and 25-40 years, based on selection criteria used in different reports. BL is an aggressive B-cell neoplasm displaying highly characteristic clinico-diagnostic features, the biologic hallmark of which is a translocation involving immunoglobulin and c-MYC genes. It presents as sporadic, endemic, or epidemic disease. Endemicity is pathogenetically linked to an imbalance of the immune system which occurs in African children infected by malaria parasites and Epstein-Barr virus, while the epidemic form strictly follows the pattern of infection by HIV...
2017: Adolescent Health, Medicine and Therapeutics
https://www.readbyqxmd.com/read/28096486/phage-derived-protein-induces-increased-platelet-activation-and-is-associated-with-mortality-in-patients-with-invasive-pneumococcal-disease
#16
Rahajeng N Tunjungputri, Fredrick M Mobegi, Amelieke J Cremers, Christa E van der Gaast-de Jongh, Gerben Ferwerda, Jacques F Meis, Nel Roeleveld, Stephen D Bentley, Alexander S Pastura, Sacha A F T van Hijum, Andre J van der Ven, Quirijn de Mast, Aldert Zomer, Marien I de Jonge
: To improve our understanding about the severity of invasive pneumococcal disease (IPD), we investigated the association between the genotype of Streptococcus pneumoniae and disease outcomes for 349 bacteremic patients. A pneumococcal genome-wide association study (GWAS) demonstrated a strong correlation between 30-day mortality and the presence of the phage-derived gene pblB, encoding a platelet-binding protein whose effects on platelet activation were previously unknown. Platelets are increasingly recognized as key players of the innate immune system, and in sepsis, excessive platelet activation contributes to microvascular obstruction, tissue hypoperfusion, and finally multiorgan failure, leading to mortality...
January 17, 2017: MBio
https://www.readbyqxmd.com/read/28096485/murine-cytomegalovirus-deubiquitinase-regulates-viral-chemokine-levels-to-control-inflammation-and-pathogenesis
#17
Adam T Hilterbrand, Daniel R Boutz, Edward M Marcotte, Jason W Upton
: Maintaining control over inflammatory processes represents a paradox for viral pathogens. Although many viruses induce host inflammatory responses to facilitate infection, control is necessary to avoid overactivation. One way is through the manipulation of proinflammatory chemokine levels, both host and viral. Murine cytomegalovirus (MCMV), a model betaherpesvirus, encodes a viral C-C chemokine, MCK2, which promotes host inflammatory responses and incorporates into virions to facilitate viral dissemination...
January 17, 2017: MBio
https://www.readbyqxmd.com/read/28096329/tissue-dual-rna-seq-allows-fast-discovery-of-infection-specific-functions-and-riboregulators-shaping-host-pathogen-transcriptomes
#18
Aaron M Nuss, Michael Beckstette, Maria Pimenova, Carina Schmühl, Wiebke Opitz, Fabio Pisano, Ann Kathrin Heroven, Petra Dersch
Pathogenic bacteria need to rapidly adjust their virulence and fitness program to prevent eradication by the host. So far, underlying adaptation processes that drive pathogenesis have mostly been studied in vitro, neglecting the true complexity of host-induced stimuli acting on the invading pathogen. In this study, we developed an unbiased experimental approach that allows simultaneous monitoring of genome-wide infection-linked transcriptional alterations of the host and colonizing extracellular pathogens. Using this tool for Yersinia pseudotuberculosis-infected lymphatic tissues, we revealed numerous alterations of host transcripts associated with inflammatory and acute-phase responses, coagulative activities, and transition metal ion sequestration, highlighting that the immune response is dominated by infiltrating neutrophils and elicits a mixed TH17/TH1 response...
January 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28096157/resistance-to-thiacetazone-derivatives-active-against-mycobacterium-abscessus-involves-mutations-in-the-mmpl5-transcriptional-repressor-mab_4384
#19
Iman Halloum, Albertus Viljoen, Varun Khanna, Derek Craig, Christiane Bouchier, Roland Brosch, Geoffrey Coxon, Laurent Kremer
Available chemotherapeutic options are very limited against Mycobacterium abscessus, which imparts a particular challenge in the treatment of cystic fibrosis (CF) patients infected with this rapid-growing mycobacterium. New drugs are urgently needed against this emerging pathogen, but the discovery of active chemotypes has not been performed intensively. Interestingly, however, the repurposing of thiacetazone (TAC), a drug once used to treat tuberculosis, has increased following the deciphering of its mechanism of action and the detection of significantly more potent analogues...
January 17, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28096156/bacterial-derived-cell-penetrating-peptides-deliver-gentamicin-to-kill-intracellular-pathogens
#20
Marta Gomarasca, Thaynan F C Martins, Lilo Greune, Philip R Hardwidge, M Alexander Schmidt, Christian Rüter
Commonly used antimicrobials show poor cellular uptake and often have limited access to intracellular targets, resulting in low antimicrobial activity against intracellular pathogens. An efficient delivery system to transport these drugs to the intracellular site of action is needed. Cell-penetrating peptides (CPPs) mediate the internalization of biologically active molecules into the cytoplasm. Here we characterized two CPPs, α1H and α2H, derived from the Y. enterocolitica YopM effector protein. These CPPs, as well as Tat(Trans-activator of transcription) from HIV-1 virus, were used to deliver the antibiotic gentamicin to target intracellular bacteria...
January 17, 2017: Antimicrobial Agents and Chemotherapy
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