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https://www.readbyqxmd.com/read/29244882/%C3%AE-ii-spectrin-in-t-cells-is-involved-in-the-regulation-of-cell-cell-contact-leading-to-immunological-synapse-formation
#1
Justyna M Meissner, Aleksander F Sikorski, Tomasz Nawara, Jakub Grzesiak, Krzysztof Marycz, Dżamila M Bogusławska, Izabela Michalczyk, Marie-Christine Lecomte, Beata Machnicka
T-lymphocyte activation after antigen presentation to the T-Cell Receptor (TCR) is a critical step in the development of proper immune responses to infection and inflammation. This dynamic process involves reorganization of the actin cytoskeleton and signaling molecules at the cell membrane, leading to the formation of the Immunological Synapse (IS). The mechanisms regulating the formation of the IS are not completely understood. Nonerythroid spectrin is a membrane skeletal protein involved in the regulation of many cellular processes, including cell adhesion, signaling and actin cytoskeleton remodeling...
2017: PloS One
https://www.readbyqxmd.com/read/29244871/inflammatory-monocytes-mediate-control-of-acute-alphavirus-infection-in-mice
#2
Kelsey C Haist, Kristina S Burrack, Bennett J Davenport, Thomas E Morrison
Chikungunya virus (CHIKV) and Ross River virus (RRV) are mosquito-transmitted alphaviruses that cause debilitating acute and chronic musculoskeletal disease. Monocytes are implicated in the pathogenesis of these infections; however, their specific roles are not well defined. To investigate the role of inflammatory Ly6ChiCCR2+ monocytes in alphavirus pathogenesis, we used CCR2-DTR transgenic mice, enabling depletion of these cells by administration of diptheria toxin (DT). DT-treated CCR2-DTR mice displayed more severe disease following CHIKV and RRV infection and had fewer Ly6Chi monocytes and NK cells in circulation and muscle tissue compared with DT-treated WT mice...
December 15, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/29244859/the-second-molecular-epidemiological-study-of-hiv-infection-in-mongolia-between-2010-and-2016
#3
Davaalkham Jagdagsuren, Tsunefusa Hayashida, Misao Takano, Erdenetuya Gombo, Setsen Zayasaikhan, Naomi Kanayama, Kiyoto Tsuchiya, Shinichi Oka
OBJECTIVE: Our previous 2005-2009 molecular epidemiological study in Mongolia identified a hot spot of HIV-1 transmission in men who have sex with men (MSM). To control the infection, we collaborated with NGOs to promote safer sex and HIV testing since mid-2010. In this study, we carried out the second molecular epidemiological survey between 2010 and 2016 to determine the status of HIV-1 infection in Mongolia. METHODS: The study included 143 new cases of HIV-1 infection...
2017: PloS One
https://www.readbyqxmd.com/read/29244851/inhibition-of-merozoite-invasion-and-transient-de-sequestration-by-sevuparin-in-humans-with-plasmodium-falciparum-malaria
#4
Anna M Leitgeb, Prakaykaew Charunwatthana, Ronnatrai Rueangveerayut, Chirapong Uthaisin, Kamolrat Silamut, Kesinee Chotivanich, Patima Sila, Kirsten Moll, Sue J Lee, Maria Lindgren, Erik Holmer, Anna Färnert, Mpungu S Kiwuwa, Jens Kristensen, Christina Herder, Joel Tarning, Mats Wahlgren, Arjen M Dondorp
SEVERE MALARIA: Even with the best available treatment, the mortality from severe Plasmodium falciparum malaria remains high. Typical features at death are high parasite loads and obstructed micro- vasculature. Infected erythrocytes (IE) containing mature parasites bind to the host receptor heparan sulfate, which is also an important receptor for merozoite invasion. To block merozoite invasion has not previously been proposed as an adjunctive therapeutic approach but it may preclude the early expansion of an infection that else leads to exacerbated sequestration and death...
2017: PloS One
https://www.readbyqxmd.com/read/29244831/antimicrobial-susceptibility-and-molecular-epidemiology-of-clinical-enterobacter-cloacae-bloodstream-isolates-in-shanghai-china
#5
Su Wang, Shu-Zhen Xiao, Fei-Fei Gu, Jin Tang, Xiao-Kui Guo, Yu-Xing Ni, Jie-Ming Qu, Li-Zhong Han
BACKGROUND: Enterobacter cloacae is a major nosocomial pathogen causing bloodstream infections. We retrospectively conducted a study to assess antimicrobial susceptibility and phylogenetic relationships of E. cloacae bloodstream isolates in two tertiary university-affiliated hospitals in Shanghai, in order to facilitate managements of E. cloacae bloodstream infections and highlight some unknowns for future prevention. METHODS: Fifty-three non-duplicate E. cloacae bloodstream isolates were consecutively collected from 2013 to 2016...
2017: PloS One
https://www.readbyqxmd.com/read/29244792/tight-glycemic-control-in-critically-ill-pediatric-patients-a-meta-analysis-and-systematic-review-of-randomized-controlled-trials
#6
Yiyang Zhao, Yang Wu, Bo Xiang
BACKGROUND: There still are controversies in the impact of tight glycemic control (TGC) in critically ill children. The aim of this study was to assess the benefits and risks of TGC compared with conventional glycemic control (CGC) in critically ill pediatric patients admitted to the pediatric intensive care unit (PICU) by using data retrieved from randomized controlled trials (RCTs). METHOD: EMBASE, CNKI, PubMed and the Cochrane Database were searched for RCTs comparing TGC with CGC in critically ill children in PICU...
December 15, 2017: Pediatric Research
https://www.readbyqxmd.com/read/29244126/silent-cerebral-small-vessel-disease-twice-as-prevalent-in-middle-aged-well-controlled-cart-treated-hiv-infected-individuals-than-hiv-uninfected-individuals
#7
Antoine Moulignier, Julien Savatovsky, Lambert Assoumou, François-Xavier Lescure, Cédric Lamirel, Ophelia Godin, Nadia Valin, Roland Tubiana, Ana Canestri, Pascal Roux, Jean-Claude Sadik, Laurence Salomon, Marie Abrivard, Christine Katlama, Yazdan Yazdanpanah, Gilles Pialoux, Pierre-Marie Girard, Dominique Costagliola
Background: Silent cerebral small-vessel disease (CSVD) is defined as white matter hyperintensities, silent brain infarction or microbleeds. CSVD is responsible for future vascular events, cognitive impairment, frailty and shorter survival. CSVD prevalence among middle-aged persons living with well-controlled HIV infection (PLHIVs) is unknown. Methods: ANRS EP51 MicroBREAK (NCT02082574) is a cross-sectional study with prospective enrollment of treated PLHIVs, ≥50 years old with viral load controlled for ≥12 months, and frequency age- and sex-matched HIV-uninfected controls (HUCs)...
December 13, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29244111/serum-albumin-as-a-prognostic-marker-for-serious-non-aids-endpoints-in-the-strategic-timing-of-antiretroviral-treatment-start-study
#8
Andreas Ronit, Shweta Sharma, Jason V Baker, Rosie Mngqibisa, Tristan Delory, Luis Caldeira, Nicaise Ndembi, Jens D Lundgren, Andrew N Phillips
Background: Serum albumin may be used to stratify human immunodeficiency virus (HIV)-infected persons with high CD4 count according to their risk of serious non-AIDS endpoints. Methods: Cox proportional hazards models were used to analyze the risk of serious non-AIDS events in the Strategic Timing of Antiretroviral Treatment (START) study (NCT00867048) with serum albumin as a fixed and time-updated predictor. Models with exclusion of events during initial follow-up years were built to assess the ability of serum albumin to predict beyond shorter periods of time...
December 13, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29244073/incidence-of-infective-endocarditis-among-patients-considered-at-high-risk
#9
Lauge Østergaard, Nana Valeur, Nikolaj Ihlemann, Henning Bundgaard, Gunnar Gislason, Christian Torp-Pedersen, Niels Eske Bruun, Lars Søndergaard, Lars Køber, Emil Loldrup Fosbøl
Aims: Patients with prior infective endocarditis (IE), a prosthetic heart valve, or a cyanotic congenital heart disease (CHD) are considered to be at high risk of IE by guidelines. However, knowledge is sparse on the relative risk of IE between these three groups and compared controls. Methods and results: Using Danish nationwide registries (1996-2015), we identified all patients with prior IE, a prosthetic heart valve, or a complex CHD (defined as tetralogy of Fallot, truncus arteriosus, and transposition of great arteries) as well as matched control populations...
December 12, 2017: European Heart Journal
https://www.readbyqxmd.com/read/29244026/jnj-63623872-treatment-in-adult-volunteers-experimentally-inoculated-with-live-influenza-virus-a-phase-iia-randomized-double-blind-placebo-controlled-study
#10
Jose M Trevejo, Mohammed Asmal, Johan Vingerhoets, Ramon Polo, Sarah Robertson, Ying Jiang, Tara L Kieffer, Lorant Leopold
BACKGROUND: JNJ-63623872 is a novel, non-nucleoside polymerase complex inhibitor with in vitro activity against influenza A virus, including pandemic 2009 H1N1, H7N9, H5N1 strains as well as neuraminidase-and amantadine-resistant strains. METHODS: Randomized, double-blind, placebo-controlled, Phase 2a study. Healthy volunteers (N = 104) were inoculated with an influenza A/Wisconsin/67/2005 (H3N2) challenge virus. 72 received JNJ-63623872 and 32 placebo. JNJ-63623872 was dosed for 5 days once daily from 24 hours after viral inoculation at four dose levels: 100 mg, 400 mg, loading dose 900/600 mg and loading dose 1200/600 mg...
December 15, 2017: Antiviral Therapy
https://www.readbyqxmd.com/read/29243827/one-incision-versus-two-incision-techniques-for-arthroscopically-assisted-anterior-cruciate-ligament-reconstruction-in-adults
#11
REVIEW
Fernando C Rezende, Vinícius Y Moraes, Carlos Es Franciozi, Pedro Debieux, Marcus V Luzo, João Carlos Belloti
BACKGROUND: Anterior cruciate ligament (ACL) tears are serious knee injuries that are frequently treated surgically in the form of arthroscopically assisted reconstruction with grafts from the patella or hamstrings tendons. We reviewed the evidence for the choice of arthroscopically assisted ACL reconstruction technique in terms of whether it should involve one incision (femoral tunnel drilled from inside the knee joint under arthroscopic visualisation) or two incisions (femoral tunnel drilled from outside to inside the knee joint)...
December 15, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29243512/the-relationship-between-hospital-construction-and-high-risk-infant-auditory-function-at-nicu-discharge-a-retrospective-descriptive-cohort-study
#12
Valerie Willis
PURPOSE: To describe the difference in auditory function at neonatal intensive care unit (NICU) discharge between high-risk infant cases exposed to hospital construction during NICU stay and those not exposed. BACKGROUND: Noise produced by routine NICU caregiving exceeds recommended intensity. As California hospitals undergo construction to meet seismic safety regulations, vulnerable neonates are potentially exposed to even higher levels of noise. Ramifications are unknown...
January 1, 2017: HERD
https://www.readbyqxmd.com/read/29243494/does-subinhibitory-concentrations-of-clinically-important-antibiotic-induce-biofilm-production-of-enterococcus-faecium-strains
#13
Fatma Neslihan Yuksel, Neslihan Taskale Karatug, Mustafa Akcelik
Biofilm structures are the most resistant form of active microorganisms against sanitation, disinfection, and sterilization processes. One of the specific properties of biofilm is the development of antibiotic resistance that can be up to 1,000-fold greater than planktonic cells. Enterococcus faecium is a human pathogen that causes nosocomial bacteremia and at the present time, it is well known that most of the chronic infections are biofilm-based. Recent evidence suggested that subinhibitory concentrations (sub-MICs) of antibiotics have an important role in the evolution of antibiotic resistance and induction on biofilm formation...
December 15, 2017: Acta Microbiologica et Immunologica Hungarica
https://www.readbyqxmd.com/read/29243456/robotic-versus-laparoscopic-sleeve-gastrectomy-a-review-of-the-current-evidence
#14
Vasiliki S Tasiopoulou, Alexis A Svokos, Konstantina A Svokos, Dimitrios Zacharoulis, Dimitrios E Magouliotis
INTRODUCTION: The purpose of the present study was to review the existing evidence on obese patients treated with either robotic or laparoscopic sleeve gastrectomy, in order to compare the clinical and perioperative outcomes of the two methods. EVIDENCE ACQUISITION: A systematic literature search was performed in PubMed, Cochrane library and Scopus databases. EVIDENCE SYNTHESIS: Sixteen studies were included in the present review and incorporated 29,787 patients...
December 14, 2017: Minerva Chirurgica
https://www.readbyqxmd.com/read/29243131/analysis-of-variability-of-urinary-excreted-jc-virus-strains-in-patients-infected-with-hiv-and-healthy-donors
#15
Danijela Karalic, Ivana Lazarevic, Ana Banko, Maja Cupic, Djordje Jevtovic, Tanja Jovanovic
In immunocompromised individuals, especially in patients with T cell immunodeficiency, reactivation of JCPyV can cause serious life-threatening diseases. Nowadays, HIV infection is one of the most important factor for reactivation of JCPyV and the development of of the progressive multifocal leukoencephalopathy (PML). Mutations in the outer loops of the VP1 region can lead to the selection of the viral variants with changed tropism and increased pathological potential. The aims of this study were to determine sequence variation and amino acid changes within VP1 loops and the structure of non-coding control region (NCCR) of urinary excreted JCPyV isolates among HIV-infected patients and healthy donors...
December 14, 2017: Journal of Neurovirology
https://www.readbyqxmd.com/read/29243070/extensive-evolution-analysis-of-the-global-chikungunya-virus-strains-revealed-the-origination-of-chikv-epidemics-in-pakistan-in-2016
#16
Junming Shi, Zhengyuan Su, Zhaojun Fan, Jun Wang, Siqing Liu, Bo Zhang, Hongping Wei, Shoukat Jehan, Nadia Jamil, Shu Shen, Fei Deng
Chikungunya virus (CHIKV) is a mosquito-borne virus that causes epidemics widely in the world especially in the tropical and subtropical regions. Phylogenetic analysis has found that the CHIKV lineages were associated with the spatial and temporal distributions, which were related to the virus adaption to the major mosquito species and their distributions. In this study, we reported the complete genome sequences of eight CHIKV isolates from the outbreak in Pakistan last year. Then we reviewed the evolutionary history using extensive phylogenetic analysis, analyzed lineagespecific substitutions in viral proteins, and characterized the spreading pathway of CHIKV strains including the Pakistani strains...
December 11, 2017: Virologica Sinica
https://www.readbyqxmd.com/read/29243060/synovial-aspiration-and-serological-testing-in-two-stage-revision-arthroplasty-for-prosthetic-joint-infection-evaluation-before-reconstruction-with-a-mean-follow-up-of-twenty%C3%A2-seven%C3%A2-months
#17
Heinrich M L Mühlhofer, C Knebel, Florian Pohlig, Susanne Feihl, Norbert Harrasser, Johannes Schauwecker, Rüdiger von Eisenhart-Rothe
INTRODUCTION: The two-stage revision protocol is the gold standard for controlling and treating low-grade prosthetic joint infections of total hip and total knee arthroplasty. The antibiotic pause for diagnostic reasons before reconstruction (stage two) is discussed in relation to the persistence of the infection and the development of resistant bacterial strains. Serological markers and a synovial analysis are commonly used to exclude the persistence of infection. Therefore, we asked (1) is the serological testing of C-reactive protein and leucocytes a valuable tool to predict a persistence of infection? and (2) what is the role of synovial aspiration of Plymethylmethacrylat (PMMA) spacers in hip and knee joints? MATERIALS AND METHODS: One hundred twelve patients who were MSIS criteria-positive for a prosthetic joint infection were studied, including 45 total hip arthroplasties (THA) and 67 total knee artrhoplasties (TKA) patients...
December 14, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/29243027/lactobacillus-rhamnosus-reduces-parasite-load-on-toxocara-canis-experimental-infection-in-mice-but-has-no-effect-on-the-parasite-in-vitro
#18
Débora Liliane Walcher, Luis Augusto Xavier Cruz, Paula de Lima Telmo, Lourdes Helena Rodrigues Martins, Luciana Farias da Costa de Avila, Maria Elisabeth Aires Berne, Carlos James Scaini
Human toxocariasis is a neglected global parasitic zoonosis. The efficacy of drug treatment for this disease has been hindered by the biological complexity of the main etiological agent, the nematode Toxocara canis. Experimental studies have shown the potential of probiotics to promote a reduction in the parasite load of T. canis larvae. This study aimed to evaluate the effect of probiotic Lactobacillus rhamnosus ATCC 7469 on the parasite load of BALB/c mice with acute toxocariasis and evaluate the direct effect of this probiotic on T...
December 14, 2017: Parasitology Research
https://www.readbyqxmd.com/read/29243020/effect-of-1064-nm-q-switched-nd-yag-laser-on-invasiveness-and-innate-immune-response-in-keratinocytes-infected-with-candida-albicans
#19
Baroni Adone, De Filippis Anna, Oliviero Giovanni, Fusco Alessandra, Perfetto Brunella, Buommino Elisabetta, Donnarumma Giovanna
Candida albicans is an opportunistic pathogen commensal in the oral cavity, vagina, and healthy skin. Common therapeutic options for fungal infections are topical or systemic antifungal drugs. Recently, in cutaneous pathologies, lasers and light-based treatments have emerged showing few contraindications and minimal side effects. The Q-switched (Nd-YAG) laser at a wavelength of 1064 nm has been shown to be useful in dermatology, dentistry, and some other medical specialties. It is used to treat onychomycoses, warts, and wounds and in some other treatments...
December 14, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/29243018/decreased-microrna-mir-181c-expression-associated-with-gastric-cancer
#20
Luanna Munhoz Zabaglia, Nicole Chiuso Bartolomeu, Mônica Pezenatto Dos Santos, Rita Luiza Peruquetti, Elizabeth Chen, Marilia de Arruda Cardoso Smith, Spencer Luiz Marques Payão, Lucas Trevizani Rasmussen
PURPOSE: This study investigated miRNA-181c expression in control patients (healthy gastric mucosa), patients with gastritis, and patients with gastric cancer. The presence of Helicobacter pylori was determined, and the associations between H. pylori infection, levels of miRNA-181c expression, and gastric disease were also analyzed. METHODS: A total of 158 subjects were included in the study, and the three groups were respectively composed of 53 controls, 86 patients with gastritis, and 19 patients with gastric cancer...
December 15, 2017: Journal of Gastrointestinal Cancer
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