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Infectious modification

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https://www.readbyqxmd.com/read/29142034/cumulative-burden-of-glucocorticoid-related-adverse-events-in-patients-with-systemic-lupus-erythematosus-findings-from-a-12-year-longitudinal-study
#1
Hung-Lin Chen, Li-Jiuan Shen, Ping-Ning Hsu, Chieh-Yu Shen, Susan A Hall, Fei-Yuan Hsiao
OBJECTIVE: The aim of this population-based study is to examine the adverse events (AE) associated with longitudinal systemic glucocorticoid (GC) use among an ethnic Chinese systemic lupus erythematosus (SLE) cohort. METHODS: Our study subjects were patients with newly diagnosed SLE aged 18 and older who received at least 1 prescription of systemic GC between 2001 and 2012 from Taiwan's National Health Insurance Research Database (NHIRD). The earliest prescription date of systemic GC for each subject was defined as the index date...
November 15, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/29139548/prospects-from-systems-serology-research
#2
REVIEW
Kelly B Arnold, Amy W Chung
Antibodies are highly functional glycoproteins capable of providing immune protection through multiple mechanisms, including direct pathogen neutralization and the engagement of their Fc-portions with surrounding effector immune cells and immune components that induce anti-pathogenic responses. Small modifications to multiple antibody biophysical features induced by vaccines and other therapeutic regimens can significantly alter functional immune outcomes, though it is difficult to predict which combinations confer protective immunity...
November 15, 2017: Immunology
https://www.readbyqxmd.com/read/29136589/nucleic-acid-aptamer-based-methods-for-diagnosis-of-infections
#3
REVIEW
Ki Soo Park
Infectious diseases are a serious global problem, which not only take an enormous human toll but also incur tremendous economic losses. In combating infectious diseases, rapid and accurate diagnostic tests are required for pathogen identification at the point of care (POC). In this review, investigations of diagnostic strategies for infectious diseases that are based on aptamers, especially nucleic acid aptamers, oligonucleotides that have high affinities and specificities toward their targets, are described...
November 8, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/29121951/increasing-the-cpg-dinucleotide-abundance-in-the-hiv-1-genomic-rna-inhibits-viral-replication
#4
Irati Antzin-Anduetza, Charlotte Mahiet, Luke A Granger, Charlotte Odendall, Chad M Swanson
BACKGROUND: The human immunodeficiency virus type 1 (HIV-1) structural protein Gag is necessary and sufficient to form viral particles. In addition to encoding the amino acid sequence for Gag, the underlying RNA sequence could encode cis-acting elements or nucleotide biases that are necessary for viral replication. Furthermore, RNA sequences that inhibit viral replication could be suppressed in gag. However, the functional relevance of RNA elements and nucleotide biases that promote or repress HIV-1 replication remain poorly understood...
November 9, 2017: Retrovirology
https://www.readbyqxmd.com/read/29116520/next-generation-dna-sequencing-of-vh-vl-repertoires-a-primer-and-guide-to-applications-in-single-domain-antibody-discovery
#5
Kevin A Henry
Immunogenetic analyses of expressed antibody repertoires are becoming increasingly common experimental investigations and are critical to furthering our understanding of autoimmunity, infectious disease, and cancer. Next-generation DNA sequencing (NGS) technologies have now made it possible to interrogate antibody repertoires to unprecedented depths, typically by sequencing of cDNAs encoding immunoglobulin variable domains. In this chapter, we describe simple, fast, and reliable methods for producing and sequencing multiplex PCR amplicons derived from the variable regions (VH, VHH or VL) of rearranged immunoglobulin heavy and light chain genes using the Illumina MiSeq platform...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29116289/difficulties-in-the-revaccination-program-of-hematopoietic-stem-cell-transplantation-recipients
#6
Paula Moreira da Silva, Élen Monteiro da Silva, Anderson João Simioni, Mair Pedro de Souza, Vergílio Antonio Rensi Colturato, Clarisse Martins Machado
Hematopoietic stem cell transplant (HSCT) recipients should be routinely revaccinated after transplantation. We evaluated the difficulties met in the revaccination program and how a prospective and tailored follow-up could help to overcome these obstacles. HSCT recipients (n=122) were prospectively followed up and categorized into Group 1 (n=72), recipients who had already started the revaccination program, and Group 2 (n=50), recipients starting their vaccines. Whenever a difficulty was reported, interventions and subsequent evaluations were performed...
November 6, 2017: Revista do Instituto de Medicina Tropical de São Paulo
https://www.readbyqxmd.com/read/29113619/parasite-mediated-host-behavioural-modifications-gyrodactylus-turnbulli-infected-trinidadian-guppies-increase-contact-rates-with-uninfected-conspecifics
#7
Michael Reynolds, Elisavet A Arapi, Jo Cable
While group formation provides antipredatory defences, increases foraging efficiency and mating opportunities, it can be counterintuitive by promoting disease transmission amongst social hosts. Upon introduction of a pathogen, uninfected individuals often modify their social preferences to reduce infection risk. Infected hosts also exhibit behavioural changes, for example, removing themselves from a group to prevent an epidemic. Conversely, here we show how Trinidadian guppies infected with a directly transmitted ectoparasite, Gyrodactylus turnbulli, significantly increase their contact rates with uninfected conspecifics...
November 8, 2017: Parasitology
https://www.readbyqxmd.com/read/29109626/action-and-resistance-mechanisms-of-antibiotics-a-guide-for-clinicians
#8
REVIEW
Garima Kapoor, Saurabh Saigal, Ashok Elongavan
Infections account for a major cause of death throughout the developing world. This is mainly due to the emergence of newer infectious agents and more specifically due to the appearance of antimicrobial resistance. With time, the bacteria have become smarter and along with it, massive imprudent usage of antibiotics in clinical practice has resulted in resistance of bacteria to antimicrobial agents. The antimicrobial resistance is recognized as a major problem in the treatment of microbial infections. The biochemical resistance mechanisms used by bacteria include the following: antibiotic inactivation, target modification, altered permeability, and "bypass" of metabolic pathway...
July 2017: Journal of Anaesthesiology, Clinical Pharmacology
https://www.readbyqxmd.com/read/29090481/utility-of-flexible-bronchoscopy-with-polymerase-chain-reaction-in-the-diagnosis-and-management-of-pulmonary-infiltrates-in-allogeneic-hsct-patients
#9
Fei-Fei Tang, Xiao-Su Zhao, Lan-Ping Xu, Xiao-Hui Zhang, Yu-Hong Chen, Xiao-Dong Mo, Kai-Yan Liu, Xiao-Jun Huang
OBJECTIVES: Pulmonary infiltrates in allogeneic hematopoietic stem cell transplant (allo-HSCT) patients are potentially life-threatening and require early diagnosis and treatment. We aimed to retrospectively explore the clinical efficacy of polymerase chain reaction (PCR) in conjunction with flexible bronchoscopy (FB) in allo-HSCT patients with pulmonary infiltrates. PATIENTS AND METHODS: We retrospectively reviewed all patients undergoing FB after allo-HSCT at the Peking University Institute of Hematology from January 2013 to December 2016...
November 1, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/29079381/bariatric-surgery-in-hiv-patients-experience-of-an-obesity-reference-center-in-france
#10
Guillaume Pourcher, Gilles Peytavin, Luminita Schneider, Sébastien Gallien, Gilles Force, Valérie Pourcher
BACKGROUND: Few data on bariatric surgery are available regarding obese human immunodeficiency virus (HIV)-infected patients. SETTINGS: Antoine Beclere hospital, Clamart, Paris-sud University, France METHODS: Prospective observational follow-up study recruited HIV-infected patients who underwent bariatric surgery from 2009 to 2015. Baseline demographic characteristics, surgery characteristics, perioperative outcomes, changes in weight loss, HIV markers, antiretroviral drug plasma levels are described...
September 14, 2017: Surgery for Obesity and related Diseases: Official Journal of the American Society for Bariatric Surgery
https://www.readbyqxmd.com/read/29076065/antibiotic-resistance-of-pathogenic-acinetobacter-species-and-emerging-combination-therapy
#11
REVIEW
Bora Shin, Woojun Park
The increasing antibiotic resistance of Acinetobacter species in both natural and hospital environments has become a serious problem worldwide in recent decades. Because of both intrinsic and acquired antimicrobial resistance (AMR) against last-resort antibiotics such as carbapenems, novel therapeutics are urgently required to treat Acinetobacter-associated infectious diseases. Among the many pathogenic Acinetobacter species, A. baumannii has been reported to be resistant to all classes of antibiotics and contains many AMR genes, such as bla ADC (Acinetobacter-derived cephalosporinase)...
November 2017: Journal of Microbiology / the Microbiological Society of Korea
https://www.readbyqxmd.com/read/29070686/the-infectious-laryngotracheitis-virus-iltv-viral-chemokine-binding-protein-glycoprotein-g-alters-the-transcription-of-key-inflammatory-mediators-in-vitro-and-in-vivo
#12
Mauricio J C Coppo, Joanne M Devlin, Alistair R Legione, Paola K Vaz, Sang-Won Lee, José A Quinteros, James R Gilkerson, Nino Ficorilli, Patrick C Reading, Amir H Noormohammadi, Carol A Hartley
Infectious laryngotracheitis virus (ILTV) is an alphaherpesvirus that infects chickens, causing upper respiratory tract disease and significant losses to poultry industries worldwide. Glycoprotein G (gG) is a broad range viral chemokine-binding protein conserved amongst most alphaherpesviruses, including ILTV. A number of studies comparing immunological parameters between infection with gG-expressing and gG-deficient ILTV strains have demonstrated that expression of gG is associated with increased virulence, modification of the amount and composition of the inflammatory response and modulation of immune responses towards antibody production and away from cell-mediated immune responses...
October 25, 2017: Journal of Virology
https://www.readbyqxmd.com/read/29063907/beyond-binding-antibody-effector-functions-in-infectious-diseases
#13
REVIEW
Lenette L Lu, Todd J Suscovich, Sarah M Fortune, Galit Alter
Antibodies play an essential role in host defence against pathogens by recognizing microorganisms or infected cells. Although preventing pathogen entry is one potential mechanism of protection, antibodies can control and eradicate infections through a variety of other mechanisms. In addition to binding and directly neutralizing pathogens, antibodies drive the clearance of bacteria, viruses, fungi and parasites via their interaction with the innate and adaptive immune systems, leveraging a remarkable diversity of antimicrobial processes locked within our immune system...
October 24, 2017: Nature Reviews. Immunology
https://www.readbyqxmd.com/read/29050027/new-preventive-approaches-part-ii-role-of-dentin-biomodifiers-in-caries-progression
#14
Ana K Bedran-Russo, Camila A Zamperini
Dental caries is the most prevalent infectious chronic disease in children and adults. With a globally aging population, new demands in the management of dental caries are awakened by the rampant increase in the incidence of dental root caries. Like crown caries, root caries requires bacterial driven tissue demineralization followed by the degradation of the extracellular dentin matrix. Due to the complex composition and ultrastructure, preventive strategies targeting the mineral phase of dentin are insufficient for managing the prevention and progression of root caries...
2017: Monographs in Oral Science
https://www.readbyqxmd.com/read/29038338/infectious-complications-of-cd19-targeted-chimeric-antigen-receptor-modified-t-cell-immunotherapy
#15
Joshua A Hill, Daniel Li, Kevin A Hay, Margaret L Green, Sindhu Cherian, Xueyan Chen, Stanley R Riddell, David G Maloney, Michael Boeckh, Cameron J Turtle
Lymphodepletion chemotherapy with CD19-targeted chimeric antigen receptor-modified T (CAR-T) cell immunotherapy is a novel treatment for refractory or relapsed B cell malignancies. However, infectious complications of this approach have not been systematically studied. We evaluated infection events occurring between days 0-28 and 29-90 in 133 patients treated with CD19 CAR-T cells in a phase 1/2 study (https://clinicaltrials.gov/ct2/show/NCT01865617). We used multivariable Poisson and Cox regression to evaluate pre- and post-treatment risk factors for infection, respectively...
October 16, 2017: Blood
https://www.readbyqxmd.com/read/29035787/identification-of-n-linked-glycosylation-sites-in-the-spike-protein-and-their-functional-impact-on-the-replication-and-infectivity-of-coronavirus-infectious-bronchitis-virus-in-cell-culture
#16
Jie Zheng, Yoshiyuki Yamada, To Sing Fung, Mei Huang, Raymond Chia, Ding Xiang Liu
Spike (S) glycoprotein on the viral envelope is the main determinant of infectivity. The S protein of coronavirus infectious bronchitis virus (IBV) contains 29 putative asparagine(N)-linked glycosylation sites. These post-translational modifications may assist in protein folding and play important roles in the functionality of S protein. In this study, we used bioinformatics tools to predict N-linked glycosylation sites and to analyze their distribution in IBV strains and variants. Among these sites, 8 sites were confirmed in the S protein extracted from partially purified virus particles by proteomics approaches...
October 13, 2017: Virology
https://www.readbyqxmd.com/read/29027888/same-hospital-re-admission-rate-is-not-reliable-for-measuring-post-operative-infection-related-re-admission
#17
Rishi Rattan, Joshua Parreco, Tanya L Zakrison, D Dante Yeh, Howard M Lieberman, Nicholas Namias
BACKGROUND: Post-operative infections cause morbidity, consume resources, and are an important quality measure in assessing and comparing hospitals. Commonly used metrics do not account for re-admission to a different hospital. The Nationwide Readmissions Database (NRD) tracks re-admissions across United States (US) hospitals. Infection-related re-admission across US hospitals has not been studied previously. PATIENTS AND METHODS: The 2013 NRD was queried for admissions with a primary International Classification of Diseases and Related Health Problems, 9th revision, Clinical Modification code for the most frequently performed operations...
October 13, 2017: Surgical Infections
https://www.readbyqxmd.com/read/29026816/aesthetic-refinements-in-forehead-flap-reconstruction-of-the-asian-nose
#18
Yen-Chang Hsiao, Chun-Shin Chang, Jonathan Zelken
BACKGROUND: Traditional paramedian forehead flap reconstruction exploits the aesthetic subunit principle. Refinements and outcomes of forehead flap nasal reconstruction largely reflect Western experience. Differences in ethnic Asian anatomy and wound healing may foster suboptimal outcomes. We modified methods to address Asian features by extending subunit and flap boundaries, minimizing flap thinning, and overbuilding the nasal framework to combat contraction and suboptimal scarring. METHODS: Between November 2010 and September 2015, 40 Asians were treated for nasal reconstruction with a modified forehead flap technique...
May 2017: Plastic Surgery
https://www.readbyqxmd.com/read/28994741/assessment-of-the-public-health-risks-and-impact-of-a-tornado-in-funing-china-23-june-2016-a-retrospective-analysis
#19
Kaiwen Wang, Shuang Zhong, Xiaoye Wang, Zhe Wang, Lianping Yang, Qiong Wang, Suhan Wang, Rongrong Sheng, Rui Ma, Shao Lin, Wenyu Liu, Rongqiang Zu, Cunrui Huang
(1) Background: Tornadoes are one of the deadliest disasters but their health impacts in China are poorly investigated. This study aimed to assess the public health risks and impact of an EF-4 tornado outbreak in Funing, China; (2) Methods: A retrospective analysis on the characteristics of tornado-related deaths and injuries was conducted based on the database from the Funing's Center for Disease Control and Prevention (CDC) and Funing People's Hospital. A change-point time-series analysis of weekly incidence for the period January 2010 to September 2016 was used to identify sensitive infectious diseases to the tornado; (3) Results: The 75 to 84 years old group was at the highest risk of both death (RR = 82...
October 10, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28994164/utilization-of-increased-risk-for-transmission-of-infectious-disease-donor-organs-in-solid-organ-transplantation-retrospective-analysis-of-disease-transmission-and-safety
#20
Linda Irwin, Camille N Kotton, Nahel Elias, Julie Palafox, Debra Basler, Sarah H Shao, William Lester, Xiaofeng Zhang, Brendan Kimball, Carrie Trencher, Jay A Fishman
The inadequate supply of transplantable organs necessitates new approaches to organ availability. Serologies and nucleic acid testing (NAT) for hepatitis C virus (HCV), hepatitis B virus (HBV), and human immunodeficiency virus (HIV) are used in microbiologic screening of potential organ donors. Organs from donors considered at "high risk" (Centers for Disease Control and Prevention, CDC 1994) or "increased risk" (U.S. Public Health Service, PHS 2013) for transmission of viral infection to recipients may provide an expanded source of organs for transplantation...
October 10, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
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