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https://www.readbyqxmd.com/read/28346820/blastomyces-dermatitidis-serine-protease-dipeptidyl-peptidase-iva-dppiva-cleaves-elr-cxc-chemokines-altering-their-effects-on-neutrophils
#1
Jenna Lorenzini, J Scott Fites, Jeniel Nett, Bruce S Klein
Blastomycosis elicits a pyogranulomatous inflammatory response, which involves a prominent recruitment of neutrophils to the site of infection. While neutrophils are efficiently recruited to the site of infection, this event is paradoxically coupled with the host's inability to control infection by Blastomyces dermatitidis, the causative agent. The mechanisms underlying this characteristic pyogranulomatous response and inability of neutrophils to kill the yeast are poorly understood. We recently reported that the fungal protease DppIVA promotes B...
March 27, 2017: Cellular Microbiology
https://www.readbyqxmd.com/read/28346597/association-of-risk-of-viremia-immunosuppression-serious-clinical-events-and-mortality-with-increasing-age-in-perinatally-human-immunodeficiency-virus-infected-youth
#2
Anne M Neilan, Brad Karalius, Kunjal Patel, Russell B Van Dyke, Mark J Abzug, Allison L Agwu, Paige L Williams, Murli Purswani, Deborah Kacanek, James M Oleske, Sandra K Burchett, Andrew Wiznia, Miriam Chernoff, George R Seage, Andrea L Ciaranello
Importance: As perinatally human immunodeficiency virus-infected youth (PHIVY) in the United States grow older and more treatment experienced, clinicians need updated information about the association of age, CD4 cell count, viral load (VL), and antiretroviral (ARV) drug use with risk of opportunistic infections, key clinical events, and mortality to understand patient risks and improve care. Objective: To examine the incidence or first occurrence during follow-up of key clinical events (including Centers for Disease Control and Prevention stage B [CDC-B] and stage C [CDC-C] events) and mortality among PHIVY stratified by age, CD4 cell count, and VL and ARV status...
March 27, 2017: JAMA Pediatrics
https://www.readbyqxmd.com/read/28345962/immune-responses-to-vaccination-and-infection-with-mycoplasma-gallisepticum-in-turkeys
#3
Dinidu S Wijesurendra, Anna Kanci, Kelly A Tivendale, Joanne M Devlin, Nadeeka K Wawegama, Barbara Bacci, Amir H Noormohammadi, Philip F Markham, Glenn F Browning
Infection with Mycoplasma gallisepticum induces severe lymphoproliferative lesions in multiple sites along the respiratory tract in chickens and turkeys. These immunopathological responses have been well-characterised in chickens, but have not been studied closely in turkeys. The aim of the studies described here was to examine the immune responses of turkeys after live vaccination and infection with M. gallisepticum. In a strain comparison study, the mean log10 antibody titre of birds exposed to an aerosol culture of M...
March 27, 2017: Avian Pathology: Journal of the W.V.P.A
https://www.readbyqxmd.com/read/28345656/structure-and-function-of-the-zika-virus-full-length-ns5-protein
#4
Baoyu Zhao, Guanghui Yi, Fenglei Du, Yin-Chih Chuang, Robert C Vaughan, Banumathi Sankaran, C Cheng Kao, Pingwei Li
The recent outbreak of Zika virus (ZIKV) has infected over 1 million people in over 30 countries. ZIKV replicates its RNA genome using virally encoded replication proteins. Nonstructural protein 5 (NS5) contains a methyltransferase for RNA capping and a polymerase for viral RNA synthesis. Here we report the crystal structures of full-length NS5 and its polymerase domain at 3.0 Å resolution. The NS5 structure has striking similarities to the NS5 protein of the related Japanese encephalitis virus. The methyltransferase contains in-line pockets for substrate binding and the active site...
March 27, 2017: Nature Communications
https://www.readbyqxmd.com/read/28345552/relationship-between-hepatitis-c-virus-infection-and-iron-overload
#5
REVIEW
Dong-Mei Zou, Wan-Ling Sun
OBJECTIVE: The aim of this study was to summarize the interactions between hepatitis C virus (HCV) infection and iron overload, and to understand the mechanisms of iron overload in chronic hepatitis C (CHC) and the role iron plays in HCV life cycle. DATA SOURCES: This review was based on data in articles published in the PubMed databases up to January 28, 2017, with the keywords "hepatitis C virus", "iron overload", "iron metabolism", "hepcidin", "translation", and "replication"...
April 5, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28345277/evolution-of-antigenic-diversity-in-the-tick-transmitted-bacterium-borrelia-afzelii-a-role-for-host-specialization
#6
Lars Råberg, Åsa Hagström, Martin Andersson, Simona Bartkova, Kristin Scherman, Maria Strandh, Barbara Tschirren
Antigenic diversity in pathogenic microbes can be a result of at least three different processes: diversifying selection by acquired immunity, host-pathogen coevolution, and/or host specialization. Here, we investigate if host specialization drives diversity at ospC (which encodes an immunodominant surface protein) in the tick-transmitted bacterium Borrelia afzelii. We determined prevalence and infection intensity of ospC strains in naturally infected wild mammals (rodents and shrews) by 454 amplicon sequencing in combination with qPCR...
March 26, 2017: Journal of Evolutionary Biology
https://www.readbyqxmd.com/read/28345022/ex%C3%A2-vivo-oncolytic-virotherapy-with-myxoma-virus-arms-multiple-allogeneic-bone-marrow-transplant-leukocytes-to-enhance-graft-versus-tumor
#7
Cameron L Lilly, Nancy Y Villa, Ana Lemos de Matos, Haider M Ali, Jess-Karan S Dhillon, Tom Hofland, Masmudur M Rahman, Winnie Chan, Bjarne Bogen, Christopher Cogle, Grant McFadden
Allogeneic stem cell transplant-derived T cells have the potential to seek and eliminate sites of residual cancer that escaped primary therapy. Oncolytic myxoma virus (MYXV) exhibits potent anti-cancer efficacy against human cancers like multiple myeloma (MM) and can arm transplant-derived T cells to become more effective cancer killers in vitro and in an immunodeficient xenotransplant murine model. Here, we tested ex vivo MYXV virotherapy against residual murine MM in immunocompetent mice using an allogeneic mouse-mouse model...
March 17, 2017: Molecular Therapy Oncolytics
https://www.readbyqxmd.com/read/28344944/human-bite-injuries-on-the-jos-plateau
#8
B T Ugwu
BACKGROUND: Human bite injuries with the associated morbidity are not uncommon in this environment. OBJECTIVE: To determine the pattern, management modalities and treatment outcome of human bites in Jos, Plateau State, Nigeria. DESIGN: A prospective study of all human bite injuries managed at the Jos University Teaching Hospital, Jos, Nigeria between January 2012 and December 2014. SETTING: Jos University Teaching Hospital, Jos, Nigeria...
April 2016: Journal of the West African College of Surgeons
https://www.readbyqxmd.com/read/28344832/in-silico-functional-elucidation-of-uncharacterized-proteins-of-chlamydia-abortus-strain-llg
#9
Gagandeep Singh, Dixit Sharma, Vikram Singh, Jyoti Rani, Francessco Marotta, Manoj Kumar, Gorakh Mal, Birbal Singh
AIM: This study reports structural modeling, molecular dynamics profiling of hypothetical proteins in Chlamydia abortus genome database. METHODOLOGY: The hypothetical protein sequences were extracted from C. abortus LLG Genome Database for functional elucidation using in silico methods. RESULTS: Fifty-one proteins with their roles in defense, binding and transporting other biomolecules were unraveled. Forty-five proteins were found to be nonhomologous to proteins present in hosts infected by C...
March 2017: Future Science OA
https://www.readbyqxmd.com/read/28344805/utilization-of-cholera-toxin-b-as-a-mucosal-adjuvant-elicits-antibody-mediated-protection-against-s-pneumoniae-infection-in-mice
#10
Kari Wiedinger, Daniel Pinho, Constantine Bitsaktsis
BACKGOUND: The introduction of the pneumococcal conjugate and polysaccharide vaccines have been valuable tools for combating invasive pneumococcal infection in children and healthy adults. Despite the available vaccination strategies, pneumococcal pneumonia and associated diseases continue to cause substantial morbidity and mortality, particularly in individuals with chronic disease and ageing populations. Next-generation pneumococcal vaccines will need to be highly immunogenic across patient populations providing both mucosal and systemic protective immunity...
February 2017: Therapeutic Advances in Vaccines
https://www.readbyqxmd.com/read/28344402/preparation-of-mucosal-nanoparticles-and-polymer-based-inactivated-vaccine-for-newcastle-disease-and-h9n2-ai-viruses
#11
Heba M El Naggar, Mohamed Sayed Madkour, Hussein Ali Hussein
AIM: To develop a mucosal inactivated vaccines for Newcastle disease (ND) and H9N2 viruses to protect against these viruses at sites of infections through mucosal immunity. MATERIALS AND METHODS: In this study, we prepared two new formulations for mucosal bivalent inactivated vaccine formulations for Newcastle and Avian Influenza (H9N2) based on the use of nanoparticles and polymer adjuvants. The prepared vaccines were delivered via intranasal and spray routes of administration in specific pathogen-free chickens...
February 2017: Veterinary World
https://www.readbyqxmd.com/read/28342989/patient-engagement-and-study-design-of-prop-up-a-multi-site-patient-centered-prospective-observational-study-of-patients-undergoing-hepatitis-c-treatment
#12
Donna M Evon, Carol E Golin, Paul Stewart, Michael W Fried, Shani Alston, Bryce Reeve, Anna S Lok, Richard K Sterling, Joseph K Lim, Nancy Reau, Souvik Sarkar, David R Nelson, K Rajender Reddy, Adrian M Di Bisceglie
BACKGROUND: New highly efficacious direct-acting antiviral (DAA) therapies are available to treat chronic hepatitis C viral (HCV) infection. Real-world, patient-centered data on harms and benefits associated with these therapies are needed. METHODS: PROP UP is a multi-center prospective observational study that plans to enroll 1600 patients starting treatment with recently-approved DAA regimens. Informed by extensive input from a HCV patient engagement group who prioritized outcomes most important to them, patient-reported outcomes will be characterized using surveys at five time points: Baseline (T1), treatment week 4 (T2), end of treatment (T3), 12weeks post-treatment (T4), 12months post-treatment (T5)...
March 22, 2017: Contemporary Clinical Trials
https://www.readbyqxmd.com/read/28342843/the-stress-response-molecule-nr4a1-resists-ros-induced-pancreatic-%C3%AE-cells-apoptosis-via-wt1
#13
Chen Zong, Dandan Qin, Cong Yu, Peng Gao, Jicui Chen, Sumei Lu, Yuchao Zhang, Yuantao Liu, Yingfeng Yang, Zeqing Pu, Xia Li, Yuchang Fu, Qingbo Guan, Xiangdong Wang
Pancreatic β-cells often face endoplasmic reticulum stress and/or ROS-associated oxidative stress under adverse conditions. Our previous work has verified that NR4A1 protects pancreatic β-cells from ER-stress induced apoptosis. However, It remains unknown whether NR4A1 is able to protect pancreatic β-cells against ROS-associated oxidative stress. In the present study, our data showed that NR4A1 protein expression rapidly increased in MIN6 cells upon H2O2 treatment, and overexpression of NR4A1 in MIN6 cells conferred resistance to cell apoptosis induced by H2O2...
March 22, 2017: Cellular Signalling
https://www.readbyqxmd.com/read/28342688/in-hospital-mortality-30-day-readmission-and-length-of-hospital-stay-after-surgery-for-primary-colorectal-cancer-a-national-population-based-study
#14
S Pucciarelli, M Zorzi, N Gennaro, G Gagliardi, A Restivo, M Saugo, A Barina, M Rugge, M Zuin, I Maretto, D Nitti
INTRODUCTION: The simultaneous assessment of multiple indicators for quality of care is essential for comparisons of performance between hospitals and health care systems. The aim of this study was to assess the rates of in-hospital mortality and 30-day readmission and length of hospital stay (LOS) in patients who underwent surgical procedures for colorectal cancer between 2005 and 2014 in Italy. METHODS: All patients in the National Italian Hospital Discharge Dataset who underwent a surgical procedure for colorectal cancer during the study period were included...
March 16, 2017: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28342650/subtotal-cholecystectomy-for-the-hostile-gallbladder-failure-to-control-the-cystic-duct-results-in-significant-morbidity
#15
Michael E Lidsky, Paul J Speicher, Brian Ezekian, Edwin W Holt, Daniel P Nussbaum, Anthony W Castleberry, Alexander Perez, Theodore N Pappas
BACKGROUND: Outcomes following the inability to control the cystic duct due to a hostile triangle of Calot during cholecystectomy remain unknown. The purpose of this study was to analyze the safety and efficacy of subtotal cholecystectomy, with attention to the necessity for secondary interventions. METHODS: Sixteen thousand five hundred ninety six cholecystectomies from January 2002 to August 2014 were reviewed, identifying patients managed with subtotal cholecystectomy, defined as the inability to isolate/transect the cystic duct...
March 22, 2017: HPB: the Official Journal of the International Hepato Pancreato Biliary Association
https://www.readbyqxmd.com/read/28342388/insights-into-the-molecular-and-biological-features-of-the-dutpase-related-gene-of-bovine-immunodeficiency-virus
#16
Yulia Podolny, Eytan Herzig, Amnon Hizi
This study was stimulated by our previous research of the dUTPase-related protein from bovine immunodeficiency virus (BIV) (Voronin et al., 2014). Despite the lack of detectable enzymatic BIV dUTPase activity (both of the recombinant protein and in virions), mutating the dUTPase gene was deleterious to viral production. However, cDNA synthesis and integration were apparently unaffected. Consequently, we have studied here two important issues. First, we showed that in cDNA produced by the dUTPase-mutated virions, the incidence of mutations was not higher than that found in wild-type BIV-infected cells...
March 22, 2017: Virology
https://www.readbyqxmd.com/read/28342205/superficial-herpes-simplex-virus-wound-infection-following-lung-transplantation
#17
Wojtek Karolak, Jacek Wojarski, Sławomir Zegleń, Marek Ochman, Maciej Urlik, Bartosz Hudzik, Elzbieta Wozniak-Grygiel, Marcin Maruszewski
Surgical site infections (SSIs) are infections of tissues, organs, or spaces exposed by surgeons during performance of an invasive procedure. SSIs are classified into superficial, which are limited to skin and subcutaneous tissues, and deep. The incidence of deep SSIs in lung transplant (LTx) patients is estimated at 5%. No reports have been published as to the incidence of superficial SSIs specifically in LTx patients. Common sense would dictate that the majority of superficial SSIs would be bacterial. Uncommonly, fungal SSIs may occur, and we believe that no reports exist as to the incidence of viral wound infections in LTx patients, or in any solid organ transplant patients...
March 25, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/28342129/comparison-of-two-specimen-retrieval-techniques-in-laparoscopic-sleeve-gastrectomy-what-is-the-role-of-endobag
#18
Saeed Shoar, Shereen Aboutaleb, Mohsen Karem, Moataz M Bashah, Mohamed AlKuwari, Davit Sargsyan, Alan A Saber
BACKGROUND: Laparoscopic sleeve gastrectomy (LSG) has become a popular stand-alone treatment for morbid obesity. However, removal of the gastric specimen could be a challenging step due to its large size relative to the width of the trocar site. OBJECTIVES: We aimed to compare a simplified retrieval technique for extraction of the gastric specimen without an endobag with conventionally performed specimen retrieval using an endobag. METHODS: A case-control study was conducted recruiting patients undergoing LSG...
March 24, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28341509/dialysis-access-hemorrhage-access-rescue-from-a-surgical-emergency
#19
Tazo Inui, Valy Boulom, Dennis Bandyk, John S Lane, Erik Owens, Andrew Barleben
OBJECTIVE: Hemorrhage from a dialysis access can be a life-threatening condition. This study details our experience using access rescue strategies, including in situ graft replacement, primary repair, or conversion to an autogenous fistula; coupled with treatment of central vein occlusion to maintain access usage in patients presenting with conduit hemorrhage. METHODS: During a 3-yr period (2012-2014), 26 patients (14 women, 12 men) on chronic hemodialysis were treated for access conduit bleeding (n=18) or life-threatening hemorrhage (n=8); located in the upper extremity (n=23) or thigh (n=3)...
March 21, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28341500/effect-of-2-chlorhexidine-gluconate-impregnated-cloth-on-surgical-site-infections-in-vascular-surgery
#20
John Bak, Jason Le, Toshio Takayama, Angela Gibson, Sara Zerbel, Nasia Safdar, Jon Matsumura
OBJECTIVE: Surgical site infections (SSI) are a significant burden to patients and healthcare systems. This retrospective study evaluates the observed rates of SSI after our institution implemented chlorhexidine gluconate-impregnated (CHG) cloth as a preoperative antiseptic preparation in elective vascular surgery. METHODS: Between March 2011 and January 2012, we reviewed 250 patients who underwent elective vascular surgery who used the CHG cloth preoperatively...
March 21, 2017: Annals of Vascular Surgery
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