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https://www.readbyqxmd.com/read/28319732/an-antigen-to-remember-regulation-of-b-cell-memory-in-health-and-disease
#1
REVIEW
Aleta Pupovac, Kim L Good-Jacobson
Vaccine success relies on the formation of immunity. Humoral immunity is critical and is mediated by long-lived antibody-secreting cells and memory B cells (MBCs). Chronic infectious diseases cause a significant global burden of disease; pathogens that evade the immune system can cause phenotypical and functional changes to immune memory populations. Thus, recent studies have focused on MBC subset function. IgM(+) MBCs have emerged as important early responders in malaria. Atypical MBCs have functional qualities associated with exhaustion in chronic infectious diseases, but the requirements for their formation and where they localize remains unknown...
March 16, 2017: Current Opinion in Immunology
https://www.readbyqxmd.com/read/28319476/anesthesia-in-patients-with-infectious-disease-caused-by-multi-drug-resistant-bacteria
#2
Sharon Einav, Yonit Wiener-Well
PURPOSE OF REVIEW: Up to 50% of specific bacterial strains in healthcare admission facilities are multidrug-resistant organisms (MDROs). Involvement of anesthesiologists in management of patients carrying/at risk of carrying MDROs may decrease transmission in the Operating Room (OR). RECENT FINDINGS: Anesthesiologists, their work area and tools have all been implicated in MDRO outbreaks. Causes include contamination of external ventilation circuits and noncontribution of filters to prevention, inappropriate decontamination procedures for nondisposable equipment (e...
March 17, 2017: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/28319235/preparing-for-emerging-infectious-diseases
#3
Lisa Saiman, Amy S Arrington, Michael Bell
No abstract text is available yet for this article.
March 20, 2017: JAMA Pediatrics
https://www.readbyqxmd.com/read/28319125/spatio-temporal-patterns-of-gun-violence-in-syracuse-new-york-2009-2015
#4
David A Larsen, Sandra Lane, Timothy Jennings-Bey, Arnett Haygood-El, Kim Brundage, Robert A Rubinstein
Gun violence in the United States of America is a large public health problem that disproportionately affects urban areas. The epidemiology of gun violence reflects various aspects of an infectious disease including spatial and temporal clustering. We examined the spatial and temporal trends of gun violence in Syracuse, New York, a city of 145,000. We used a spatial scan statistic to reveal spatio-temporal clusters of gunshots investigated and corroborated by Syracuse City Police Department for the years 2009-2015...
2017: PloS One
https://www.readbyqxmd.com/read/28318708/-high-irradiance-accelerated-corneal-collagen-crosslinking-for-the-treatment-of-keratoconus-a-retrospective-study
#5
N Moineau, L Sauvan, J Benichou, G Ho Wang Yin, L Hoffart
PURPOSE: To evaluate the safety and efficacy of accelerated corneal collagen crosslinking on stabilization of progressive keratoconus. MATERIALS AND METHODS: This was a retrospective study from March 2013 to March 2015. Patients with progressive keratoconus who underwent accelerated corneal collagen crosslinking were included. Visual acuity with and without correction, biomicroscopy, corneal elevation topography (maximum and mean keratometry values, minimum pachymetry, densitometry) and side effects were recorded at baseline and at 1, 3 and 6 months (M)...
March 15, 2017: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/28318554/decubitus-ulcers-in-patients-undergoing-vascular-operations-do-not-influence-mortality-but-affect-resource-utilization
#6
J Hunter Mehaffey, Amani D Politano, Castigliano M Bhamidipati, Margaret C Tracci, Kenneth J Cherry, John A Kern, Irving L Kron, Gilbert R Upchurch
BACKGROUND: While it is anticipated that decubitus ulcers are detrimental to outcomes after vascular operations, the contemporary influence of perioperative decubitus ulcers in vascular surgery remains unknown. METHODS: Using the National Impatient Survey, all adult patients who underwent vascular operation were selected. Patients were stratified by the presence or absence (non-decubitus ulcers) of decubitus ulcer. Case-mix adjusted hierarchical mixed-models examined in-hospital mortality, the occurrence of any complication, and discharge disposition...
March 17, 2017: Surgery
https://www.readbyqxmd.com/read/28318535/organism-and-microbiome-analysis-techniques-and-implications-for-chronic-rhinosinusitis
#7
REVIEW
Ashleigh A Halderman, Andrew P Lane
Modern advances in DNA sequencing have allowed for the development of culture-independent techniques with application to infectious and inflammatory conditions, such as rhinosinusitis. Although paradigm-changing discoveries have resulted from molecular microbiologic methods for a number of diseases, insights provided into the role of bacteria in chronic rhinosinusitis have yet to be fully understood to the point of impacting clinical diagnosis and management. As culture-independent techniques continue to evolve and become more refined, it is likely that a better understanding will emerge of how the microbiome influences chronic rhinosinusitis pathogenesis and response to therapy...
March 16, 2017: Otolaryngologic Clinics of North America
https://www.readbyqxmd.com/read/28318380/pup-mortality-and-evidence-for-pathogen-exposure-in-galapagos-sea-lions-zalophus-wollebaeki-on-san-cristobal-island-galapagos-ecuador
#8
Judith Denkinger, Nataly Guevara, Sofia Ayala, Juan Carlos Murillo, Maximilian Hirschfeld, Ignasi Montero-Serra, Katharina Fietz, Tracey Goldstein, Mark Ackermann, Veronica Barragán, Francisco Cabrera, Cristina Chavez, Edward J Dubovi, Jael Martinez, Gabriel Trueba
The Galapagos sea lion ( Zalophus wollebaeki ), an endangered species, experiences high pup mortality (up to 100%) in years when El Niño events reduce food supply in the Galapagos Islands. Mortality of pups in non-El Niño years is estimated to be 5% in undisturbed colonies. From 2009 to 2012 we observed high pup mortality (up to 66%) in colonies close to the Galapagos capital, Puerto Baquerizo Moreno, where contact with humans, domestic animals, and rats is frequent. Gross postmortem findings from 54 pups included hemorrhagic lesions in liver and congestion in lungs; histopathology suggested a possible association with infectious diseases...
March 20, 2017: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/28318191/a-fatal-clostridium-perfringens-infection-with-hemolysis-after-chemotherapy-in-an-adolescent
#9
Musa G Kukul, Kısmet Ciki, Eda Karadag-Oncel, Ali B Cengiz, Baris Kuskonmaz, Betul Tavil, Selman Kesici
Gas gangrene, clostridial myonecrosis, is one of the most serious infectious diseases, characterized by rapidly progressive destruction of deep soft tissues and production of gas within the tissues. We presented a case of fatal spontaneous gas gangrene due to Clostridium perfringens in a patient with acute lymphoblastic leukemia during remission induction chemotherapy phase.
April 1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28318010/ataxia-telangiectasia-recommendations-for-multidisciplinary-treatment
#10
REVIEW
Nienke J H van Os, Charlotte A Haaxma, Michiel van der Flier, Peter J F M Merkus, Marcel van Deuren, Imelda J M de Groot, Jan Loeffen, Bart P C van de Warrenburg, Michèl A A P Willemsen
Ataxia-telangiectasia is a rare, neurodegenerative, and multisystem disease, characterized by cerebellar ataxia, oculocutaneous telangiectasia, immunodeficiency, progressive respiratory failure, and an increased risk of malignancies. It demands specialized care tailored to the individual patient's needs. Besides the classic ataxia-telangiectasia phenotype, a variant phenotype exists with partly overlapping but some distinctive disease characteristics. This guideline summarizes frequently encountered medical problems in the disease course of patients with classic and variant ataxia-telangiectasia, in the domains of neurology, immunology and infectious diseases, pulmonology, anaesthetic and perioperative risk, oncology, endocrinology, and nutrition...
March 20, 2017: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/28317814/the-medicinal-plants-in-the-control-of-tuberculosis-laboratory-study-on-medicinal-plants-from-the-northern-area-of-pakistan
#11
Sami Ullah, Shah Hussain, Sadiq Noor Khan, Mohammad Khurram, Iqbal Khan, Murad Ali Khan
BACKGROUND: Tuberculosis (TB) ranks as the second leading cause of deaths due to infectious diseases. Although global efforts have been made to control TB, still, this is a serious threat as Mycobacterium tuberculosis (MTB) produced resistance against both the first- and second-line drugs. The increasing incidence of multidrug-resistant, extremely drug resistant, and totally drug-resistant TB worldwide requires extra efforts to search for new anti-TB drugs. MATERIALS AND METHODS: The present study evaluated the antimycobacterial activities of Citrullus colocynthis, Calotropis procera, Ricinus communis, Capparis decidua, and Fagonia cretica plants' extracts against rifampicin-sensitive (H37Rv) and rifampicin-resistant (TMC331) strains of MTB...
January 2017: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28317799/a-first-insight-into-the-genetic-diversity-of-mycobacterium-tuberculosis-in-veracruz-mexico
#12
Raquel Almaraz-Velasco, Daniela Munro-Rojas, Javier Fuentes-Domínguez, Raquel Muñiz-Salazar, Maria Angélica Ibarra-Estela, Alma Delia Guevara-Méndez, Rosa Icela Chaparro-Martinez, Monserrat Perez-Navarro, Roberto Zenteno-Cuevas
OBJECTIVE/BACKGROUND: Tuberculosis (TB) remains one of the most important infectious diseases. Although Mexico is one of the Latin American countries with the largest contribution to these statistics, there are few reports that describe the genotypic characteristics of TB. The aim of this study was to use the MIRU-VNTR-24 loci to analyze the genetic diversity of M. tuberculosis circulating in the state of Veracruz, Mexico. METHODS: Here, we analyze by MIRU-VNTR-24 loci 80 clinical isolates from individuals with confirmed TB from Veracruz México, also clinical and epidemiological variables were recovered and analyzed...
January 2017: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28317570/oral-viral-infections-diagnosis-and-management
#13
REVIEW
Earl Clarkson, Fatima Mashkoor, Saif Abdulateef
This article focuses on common viral infections in the oral cavity with associated systemic manifestations. Discussed are the clinical features, histopathology, diagnosis, treatment, and prevention of viral infections in oral cavity. This will be a useful aid for general practitioners and other dental personnel wanting to expand their pathologic knowledge. This article discusses herpes simplex, varicella zoster, mononucleosis, cytomegalovirus, enteroviruses, rubeola, rubella, mumps, and human papillomavirus...
April 2017: Dental Clinics of North America
https://www.readbyqxmd.com/read/28317417/hepatoprotective-effect-of-stachys-pilifera-ethanol-extract-in-carbon-tetrachloride-induce-hepatotoxicity-in-rats
#14
Esmaeel Panahi Kokhdan, Kyomarth Ahmadi, Heibatollah Sadeghi, Hossein Sadeghi, Fahemeh Dadgary, Nazanin Danaei, Mahmoud Reza Aghamaali
CONTEXT: Stachys pilifera Benth (Lamiaceae) has long been used to treat infectious diseases, respiratory and rheumatoid disorders in Iranian folk medicine. Antitumor and antioxidant activity of the plant have been reported. OBJECTIVE: The study was designed to assess the hepatoprotective activity of ethanol extract of Stachys pilifera in carbon tetrachloride (CCl4)-induced hepatotoxicity in rats. MATERIALS AND METHODS: The rats were randomly divided into six equal groups (n = 7)...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28317104/contact-and-contagion-bighorn-sheep-demographic-states-vary-in-probability-of-transmission-given-contact
#15
Kezia R Manlove, E Frances Cassirer, Raina K Plowright, Paul C Cross, Peter J Hudson
1.Understanding both contact and probability of transmission given contact are key to managing wildlife disease. However, wildlife disease research tends to focus on contact heterogeneity, in part because probability of transmission given contact is notoriously difficult to measure. Here we present a first step toward empirically investigating probability of transmission given contact in free-ranging wildlife. 2.We used measured contact networks to test whether bighorn sheep demographic states vary systematically in infectiousness or susceptibility to Mycoplasma ovipneumoniae, an agent responsible for bighorn sheep pneumonia...
March 20, 2017: Journal of Animal Ecology
https://www.readbyqxmd.com/read/28317028/mycobacterial-caseinolytic-protease-gene-regulator-clgr-is-a-substrate-of-caseinolytic-protease
#16
Yoshiyuki Yamada, Thomas Dick
The mycobacterial caseinolytic protease ClpP1P2 is a degradative protease that recently gained interest as a genetically and pharmacologically validated drug target for tuberculosis. The first whole-cell active ClpP1P2 inhibitor, the human proteasome inhibitor bortezomib, is currently undergoing lead optimization to introduce selectivity for the bacterial target. How inhibition of ClpP1P2 translates into whole-cell antimicrobial activity is little understood. Previous work has shown that the caseinolytic protease gene regulator ClgR is an activator of the clpP1P2 genes and also suggested that this transcription factor may be a substrate of the protease...
March 2017: MSphere
https://www.readbyqxmd.com/read/28316896/vector-competence-of-anopheles-and-culex-mosquitoes-for-zika-virus
#17
Brittany L Dodson, Jason L Rasgon
Zika virus is a newly emergent mosquito-borne flavivirus that has caused recent large outbreaks in the new world, leading to dramatic increases in serious disease pathology including Guillain-Barre syndrome, newborn microcephaly, and infant brain damage. Although Aedes mosquitoes are thought to be the primary mosquito species driving infection, the virus has been isolated from dozens of mosquito species, including Culex and Anopheles species, and we lack a thorough understanding of which mosquito species to target for vector control...
2017: PeerJ
https://www.readbyqxmd.com/read/28316013/the-papain-like-protease-of-avian-infectious-bronchitis-virus-has-deubiquitinating-activity
#18
Liping Yu, Xiaorong Zhang, Tianqi Wu, Yuyang Wang, Jie Meng, Qian Liu, Xiaosai Niu, Yantao Wu
Coronavirus papain-like proteases (PLPs) can act as proteases that process virus-encoded large replicase polyproteins and also as deubiquitinating (DUB) enzymes. Like the PLPs of other coronaviruses (CoVs), the avian infectious bronchitis virus (IBV) PLP catalyzes proteolysis of Gly-Gly dipeptide bonds to release mature cleavage products. However, the other functions of the IBV PLP are not well understood. In this study, we found that IBV exhibits strong global DUB activity with significant reductions of the levels of ubiquitin (Ub)-, K48-, and K63-conjugated proteins...
March 18, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28316002/the-impact-of-periodontal-disease-on-physical-and-psychological-domains-in-long-term-hemodialysis-patients-a-cross-sectional-study
#19
Gabriel Veisa, Alexandra Tasmoc, Ionut Nistor, Liviu Segall, Dimitrie Siriopol, Sorina Mihaela Solomon, Mihaela Dora Donciu, Luminita Voroneanu, Andra Nastasa, Adrian Covic
PURPOSE: Periodontal disease is a chronic infectious disease. Individuals with end-stage kidney disease (ESKD) experience impaired quality of life (QoL) and low oral health. This is the first comprehensive study which aimed to explore the link between periodontal disease and quality of life, assessed with the Short Form 36-Item Health Survey in hemodialysis patients. METHODS: In total, 101 patients (57 females) with ESKD were recruited from two Romanian dialysis centers...
March 18, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28315991/construction-of-an-agroinfectious-clone-of-bean-rugose-mosaic-virus-using-gibson-assembly
#20
Taise Bijora, Rosana Blawid, Danielle K T Costa, Francisco J L Aragão, Eliezer R Souto, Tatsuya Nagata
Construction of agroinfectious viral clones usually requires many steps of cloning and sub-cloning and also a binary vector, which makes the process laborious, time-consuming, and frequently susceptible to some degree of plasmid instability. Nowadays, novel methods have been applied to the assembly of infectious viral clones, and here we have applied isothermal, single-step Gibson Assembly (GA) to construct an agroinfectious clone of Bean rugose mosaic virus (BRMV) using a small binary vector. The procedure has drastically reduced the cloning steps, and BRMV could be recovered from agroinfiltrated common bean twenty days after inoculation, indicating that the infectious clone could spread in the plant tissues and efficiently generate a systemic infection...
March 18, 2017: Virus Genes
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