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infection site

Aixa M Pérez-Caraballo, Erick Suarez, Elizabeth R Unger, Joel M Palefsky, Gitika Panicker, Ana Patricia Ortiz
OBJECTIVE: It is unknown if human papillomavirus (HPV) serum antibody responses vary by anatomic site of infection. We aimed to assess the seroprevalence for HPV 6, 11, 16 and 18 in association with HPV DNA detection in different anatomic sites among women. METHODS: This cross sectional population-based study analyzed data from 524 women aged 16-64 years living in the San Juan metropolitan area of Puerto Rico (PR). Questionnaires were used to assess demographic and lifestyle variables, while anogenital and blood samples were collected for HPV analysis...
March 2018: Puerto Rico Health Sciences Journal
Matthew J Murray, Nicholas E Peters, Matthew B Reeves
The host cell represents a hostile environment that viruses must counter in order to establish infection. Human cytomegalovirus (HCMV) is no different and encodes a multitude of functions aimed at disabling, re-directing or hijacking cellular functions to promulgate infection. However, during the very early stages of infection the virus relies on the outcome of interactions between virion components, cell surface receptors and host signalling pathways to promote an environment that supports infection. In the context of latent infection-where the virus establishes an infection in an absence of many gene products specific for lytic infection-these initial interactions are crucial events...
March 16, 2018: Pathogens
Rajeev Ranjan, Arra Abhinay, Monalisa Mishra
Neurodegenerative diseases, e.g., Alzheimer's and Parkinson's disease, etc., are serious life-threatening diseases, which involve degeneration of the neurons with time. Numerous studies have discussed the role of microbes in neurodegeneration. Oral cavity being the primary site of infection acts as a gateway for gigantic population of microbes to the human body. Oral infection is known to be associated with neurodegeneration. The current review summarizes various mechanisms due to which the oral microbiome can cause neurodegeneration...
March 2018: Neurology India
Jane Hawkey, David B Ascher, Louise M Judd, Ryan R Wick, Xenia Kostoulias, Heather Cleland, Denis W Spelman, Alex Padiglione, Anton Y Peleg, Kathryn E Holt
Acinetobacter baumannii is a common causative agent of hospital-acquired infections and a leading cause of infection in burns patients. Carbapenem-resistant A. baumannii is considered a major public-health threat and has been identified by the World Health Organization as the top priority organism requiring new antimicrobials. The most common mechanism for carbapenem resistance in A. baumannii is via horizontal acquisition of carbapenemase genes. In this study, we sampled 20 A. baumannii isolates from a patient with extensive burns, and characterized the evolution of carbapenem resistance over a 45 day period via Illumina and Oxford Nanopore sequencing...
March 16, 2018: Microbial Genomics
Hannah M Carl, A Karim Ahmed, Nancy Abu-Bonsrah, Rafael De la Garza Ramos, Eric W Sankey, Zachary Pennington, Ali Bydon, Timothy F Witham, Jean-Paul Wolinsky, Ziya L Gokaslan, Justin M Sacks, C Rory Goodwin, Daniel M Sciubba
OBJECTIVE Resection of metastatic spine tumors can improve patients' quality of life by addressing pain or neurological compromise. However, resections are often complicated by wound dehiscence, infection, instrumentation failures, and the need for reoperation. Moreover, when reoperations are needed, the most common indication is surgical site infection and wound breakdown. In turn, wound reoperations increase morbidity as well as the length and cost of hospitalization. The aim of this study was to examine perioperative risk factors associated with increased rate of wound reoperations after metastatic spine tumor resection...
March 16, 2018: Journal of Neurosurgery. Spine
Fernando A Angarita, Sergio A Acuna, Erin Cordeiro, Ahmad Elnahas, Subir Sutradhar, Timothy Jackson, Tulin D Cil
PURPOSE: Postoperative complication rates for elderly women undergoing breast cancer surgery have not been well studied. We describe the postoperative complication rates of elderly (≥ 70 years) women with breast cancer and compare them with young (40-69 years) women. METHODS: Data were extracted from the National Surgical Quality Improvement Program database (2004-2014). We included women with invasive breast cancer who underwent surgery. Outcomes were 30-day postoperative morbidity and mortality (complications), which were compared between young and elderly women...
March 15, 2018: Breast Cancer Research and Treatment
Egarit Noulsri, Dinar Abudaya, Surada Lerdwana, Kovit Pattanapanyasat
Objective: To determine whether a corrected lymphocyte percentage could reduce bias in the absolute cluster of differentiation (CD)4+ T lymphocyte counts obtained via dual-platform (DP) vs standard single-platform (SP) flow cytometry. Methods: The correction factor (CF) for the lymphocyte percentages was calculated at 6 laboratories. The absolute CD4+ T lymphocyte counts in 300 blood specimens infected with human immunodeficiency virus (HIV) were determined using the DP and SP methods...
March 13, 2018: Laboratory Medicine
Christopher J Rendina
Purpose: To present a case that benefited from utilizing hyperbaric oxygen therapy in conjunction with antibiotics for a non-healing mandibular fracture that was highly suspicious of osteomyelitis. Also, to discuss research set forth by Undersea and Hyperbaric Medical Society that supports the use hyperbaric oxygen in such cases. Case: A 25-year-old male status post fist to face resulting in bilateral mandibular fracture. He underwent two surgeries in an attempt to plate the fracture with the assistance of a bone graft...
March 13, 2018: Military Medicine
Tonya L Ward, Maria Gloria Dominguez-Bello, Tim Heisel, Gabriel Al-Ghalith, Dan Knights, Cheryl A Gale
With the advent of next-generation sequencing and microbial community characterization, we are beginning to understand the key factors that shape early-life microbial colonization and associated health outcomes. Studies characterizing infant microbial colonization have focused mostly on bacteria in the microbiome and have largely neglected fungi (the mycobiome), despite their relevance to mucosal infections in healthy infants. In this pilot study, we characterized the skin, oral, and anal mycobiomes of infants over the first month of life ( n = 17) and the anal and vaginal mycobiomes of mothers ( n = 16) by internal transcribed spacer 2 (ITS2) amplicon sequencing...
May 2018: MSystems
Hassan Al Moussawi, Michael Krzyzak, Zainab Awada, Jean M Chalhoub
A brain abscess is defined as a focal intracerebral infection consisting of an encapsulated collection of pus, which can be a life-threatening complication of infections, trauma, or surgery. While immunocompromised patients can have a wide array of causative organisms, bacterial species represent the most common etiology in immunocompetent individuals. The incidence of brain abscesses ranges from 0.4 to 0.9 per 100,000, with a high predisposition among immunocompromised patients and in those with disruption of the blood-brain barrier...
January 13, 2018: Curēus
Xin Deng, Wen Zhao, Laijun Song, Wei Ying, Xinbin Guo
Glioma is one of the most common aggressive neuroepithelial malignant tumors in the central nervous system. It has a high recurrence rate and poor prognosis, primarily due to the fact that novel therapeutic agents cannot penetrate the blood-brain barrier (BBB). Endothelial progenitor cells (EPCs) have been reported to move across the BBB and access the tumor site. However, whether EPCs expressing the tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) induce glioma cell apoptosis requires further investigation...
April 2018: Oncology Letters
David P Darrow, Coridon Quinn, Huy T Donguyen, Matthew Hunt, Stephen Haines
INTRODUCTION: External ventricular drains can pose a serious source of morbidity and mortality. Interventions proven to reduce the risk of infections are lacking. Single center studies limit the study of procedures that mitigate infection, but bundled protocols have demonstrated utility. A collaborative EVD registry was designed to facilitate local quality improvement projects to be implemented at any location using standardized data collection instruments through resident collaboration to reduce and study EVD infection and prevention...
March 12, 2018: World Neurosurgery
Yuhong Guo, ShengJie Lai, Jing Zhang, Qiyong Liu, Huaiqing Zhang, Zhoupeng Ren, Deqiang Mao, Chao Luo, Yuanyuan He, Haixia Wu, Guichang Li, Dongsheng Ren, Xiaobo Liu, Zhaorui Chang
BACKGROUND: Mosquitoes are responsible for spreading many diseases and their populations are susceptible to environmental changes. The ecosystems in the Three Gorges Region were probably altered because of changes to the environment during the construction of the Three Gorges Dam (TGD), the world's largest hydroelectric dam by generating capacity. METHODS: We selected three sites at which to monitor the mosquitoes from 1997 to 2009. We captured adult mosquitoes with battery-powered aspirators fortnightly between May and September of each year in dwellings and sheds...
March 12, 2018: Acta Tropica
S Dolatabadi, B Ahmadi, A Rezaei-Matehkolaei, H Zarrinfar, A Skiada, H Mirhendi, R Nashibi, F Niknejad, M Nazeri, A Rafiei, M Gharaghani, M Erami, S Taghipour, F Piri, K Makimura
Mucormycosis is a devastating infection caused by Mucoralean fungi (Mucormycotina, Mucorales). Data concerning the global epidemiology of mucormycosis are scarce and little is known about the characteristics of mucormycosis in Iran. In this study, we aimed to understand the distribution of this infection in Iran retrospectively and to ascertain whether the patterns of infection are associated with specific host factors or not. A total of 208 cases were included in this study occurring during 2008-2014 and were validated according to (EORTC/MSG) criteria...
March 12, 2018: Journal de Mycologie Médicale
Annebel R De Vleeschauwer, Xiaocui Zhou, David J Lefebvre, Annabelle Garnier, Fleur Watier, Charly Pignon, Sandrine A Lacour, Stephan Zientara, Labib Bakkali-Kassimi, Kris De Clercq, Bernard Klonjkowski
Vaccination is a key element in the control of foot-and-mouth disease (FMD). The majority of the antigenic sites that induce protective immune responses are localized on the FMD virus (FMDV) capsid that is formed by four virus-encoded structural proteins, VP1 to VP4. In the present study, recombinant canine adenovirus type 2 (CAV2)-based FMD vaccines, Cav-P1/3C R° and Cav-VP1 R°, respectively expressing the structural P1 precursor protein along with the non-structural 3C protein or expressing the structural VP1 protein of the FMDV strain O/FRA/1/2001, were evaluated as novel vaccines against FMD...
March 12, 2018: Vaccine
Bakary Sanneh, Alhagie Papa Sey, Minesh Shah, Jacqueline Tate, Mariama Sonko, Sheriffo Jagne, ModouLamin Jarju, Dawda Sowe, Makie Taal, Adam Cohen, Umesh Parashar, Jason M Mwenda
INTRODUCTION: Rotavirus vaccines protect against the leading cause of severe childhood diarrhoea, and have been introduced in many low-income African countries. The Gambia introducedRotateq® (RV5) into their national immunization program in 2013. We revieweddata from an active rotavirus sentinel surveillancesitefor early evidence of vaccine impact. METHODS: We compared rotavirus prevalence in diarrhoeal stool in children< 5 years of age admittedat the Edward Francis Small Teaching Hospital sentinel surveillance site before (2013) andafterRV5 introduction (2015-2016) in the Gambia...
March 12, 2018: Vaccine
Khaled R Alkharsah, Suriya Rehman, Fatimah Alkhamis, Amani Alnimr, Asim Diab, Amein K Al-Ali
BACKGROUND: Methicillin resistant Staphylococcus aureus (MRSA) constitutes a major global health concern causing hospital and community acquired infections. A wide diversity of MRSA genotypes are circulating in geographically related regions. Therefore understanding the molecular epidemiology of MRSA is fundamental to design control and clearance measures. METHODS: A total of 106 MRSA isolates from infection (51) and carrier colonization sites (55) are characterized genetically based on SCCmec and MLST genotyping methods in addition to detection of PVL, TSST-1 and enterotoxins...
March 15, 2018: Annals of Clinical Microbiology and Antimicrobials
Richard Lindqvist, Chaitanya Kurhade, Jonathan D Gilthorpe, Anna K Överby
BACKGROUND: Flaviviruses are a group of diverse and emerging arboviruses and an immense global health problem. A number of flaviviruses are neurotropic, causing severe encephalitis and even death. Type I interferons (IFNs) are the first line of defense of the innate immune system against flavivirus infection. IFNs elicit the concerted action of numerous interferon-stimulated genes (ISGs) to restrict both virus infection and replication. Viperin (virus-inhibitory protein, endoplasmic reticulum-associated, IFN-inducible) is an ISG with broad-spectrum antiviral activity against multiple flaviviruses in vitro...
March 15, 2018: Journal of Neuroinflammation
Vitor Cabral, Karina B Xavier
Bacterial sensing is important for perceiving environmental cues and activating responses. In this issue of Cell Host & Microbe, Hertzog et al. (2018) show that group A Streptococcus can couple the ability to respond to host cues with autoinduction of a quorum sensing system, leading to killing of bacterial competitors.
March 14, 2018: Cell Host & Microbe
Michael A Taylor, Jong W Yu, Thomas L Howell, Stephen H Jones
Vibrio parahaemolyticus is the leading cause of seafood-borne human infections in the United States, and many of these illnesses are associated with consumption of raw molluscan shellfish. V. parahaemolyticus levels in shellfish vary temporally and spatially with environmental conditions in and around production areas. The objective of this study was to study the potential for reducing levels of V. parahaemolyticus in live oysters by relaying them during higher-risk warm weather to a site with elevated salinity and consistently low V...
March 15, 2018: Journal of Food Protection
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