Read by QxMD icon Read


Katsuhiko Hirota, Hiromichi Yumoto, Bayarmagnai Sapaar, Takashi Matsuo, Tetsuo Ichikawa, Yoichiro Miyake
Candida albicans is commonly found as a member of the human microflora and a major human opportunistic fungal pathogen. A perturbation of the microbiome can lead to infectious diseases caused by various microorganisms, including C. albicans. Moreover, the interactions between C. albicans and bacteria are considered to play critical roles in human health. The major biological feature of C. albicans, which impacts human health, resides in its ability to form biofilms. In particular, the extracellular matrix (ECM) of Candida biofilm plays a multifaceted role and therefore may be considered as a highly attractive target to combat biofilm-related infectious diseases...
October 21, 2016: Journal of Applied Microbiology
N Rostami, R C Shields, S A Yassin, A R Hawkins, L Bowen, T L Luo, A H Rickard, R Holliday, P M Preshaw, N S Jakubovics
Extracellular DNA (eDNA) has been identified in the matrix of many different monospecies biofilms in vitro, including some of those produced by oral bacteria. In many cases, eDNA stabilizes the structure of monospecies biofilms. Here, the authors aimed to determine whether eDNA is an important component of natural, mixed-species oral biofilms, such as plaque on natural teeth or dental implants. To visualize eDNA in oral biofilms, approaches for fluorescently stained eDNA with either anti-DNA antibodies or an ultrasensitive cell-impermeant dye, YOYO-1, were first developed using Enterococcus faecalis, an organism that has previously been shown to produce extensive eDNA structures within biofilms...
October 21, 2016: Journal of Dental Research
Anna J MacDonald, Stephen D Sarre
Taxon-specific DNA tests are applied to many ecological and management questions, increasingly using environmental DNA (eDNA). eDNA facilitates non-invasive ecological studies, but introduces additional risks of bias and error. For effective application, PCR primers must be developed for each taxon and validated in each system. We outline a nine step framework for the development and validation of taxon-specific primers for eDNA analysis in ecological studies, involving reference database construction, phylogenetic evaluation of the target gene, primer design, primer evaluation in silico, and laboratory evaluation of primer specificity, sensitivity, and utility...
October 21, 2016: Molecular Ecology Resources
Margaret E Hunter, Robert M Dorazio, John S S Butterfield, Gaia Meigs-Friend, Leo G Nico, Jason A Ferrante
A set of universal guidelines is needed to determine the limit of detection (LOD) in PCR-based analyses of low concentration DNA. In particular, environmental DNA (eDNA) studies require sensitive and reliable methods to detect rare and cryptic species through shed genetic material in environmental samples. Current strategies for assessing detection limits of eDNA are either too stringent or subjective, possibly resulting in biased estimates of species' presence. Here, a conservative LOD analysis grounded in analytical chemistry is proposed to correct for overestimated DNA concentrations predominantly caused by the concentration plateau, a nonlinear relationship between expected and measured DNA concentrations...
October 21, 2016: Molecular Ecology Resources
Lidiane Raquel Verola Mataveli, Márcia Liane Buzzo, Luciana Juncioni de Arauz, Maria de Fátima Henriques Carvalho, Edna Emy Kumagai Arakaki, Richard Matsuzaki, Paulo Tiglea
This study is aimed at investigating a suitable method for rice sample preparation as well as validating and applying the method for monitoring the concentration of total arsenic, cadmium, and lead in rice by using Inductively Coupled Plasma Mass Spectrometry (ICP-MS). Various rice sample preparation procedures were evaluated. The analytical method was validated by measuring several parameters including limit of detection (LOD), limit of quantification (LOQ), linearity, relative bias, and repeatability. Regarding the sample preparation, recoveries of spiked samples were within the acceptable range from 89...
2016: Journal of Analytical Methods in Chemistry
Edna Ruiz Magpantay-Monroe
The military and veteran populations in the U. S. state of Hawaii have a strong presence in the local communities. It was this substantial presence that provided the impetus to integrate military and veteran health into a Bachelor's of Science in Nursing (BSN) curriculum. This exploratory study investigated the relationship between the integration of military and veteran health into a psychiatric mental health BSN curriculum and nursing students' understanding of the many facets of military veterans' health...
October 6, 2016: Nurse Education Today
Sérgio Monteiro de Almeida, Indianara Rotta, Arnaldo José de Conto, Dario Antonelli, Carlos Dabdoub Roda, Edna Yoshiko Yamada, Gisele M B Singer
Objective: To define how to best handle cerebrospinal fluid (CSF) specimens to obtain the highest positivity rate for the diagnosis of malignancy, comparing two different methods of cell concentration, sedimentation and cytocentrifugation. Methods: A retrospective analysis of 411 CSF reports. Results: This is a descriptive comparative study. The positive identification of malignant CSF cells was higher using the centrifuge than that using the Suta chamber (27...
October 2016: Arquivos de Neuro-psiquiatria
Nara Rubia de Freitas, Edna Braz Rocha de Santana, Ágabo Macedo da Costa E Silva, Sueli Meira da Silva, Sheila Araújo Teles, Noemi Rovaris Gardinali, Marcelo Alves Pinto, Regina Maria Bringel Martins
Hepatitis E virus (HEV) infection has a worldwide distribution and represents an important cause of acute hepatitis. This study aims to investigate the occurrence of HEV infection and factors associated with this infection in patients with acute non-A, non-B, non-C hepatitis in Central Brazil. From April 2012 to October 2014, a cross-sectional study was conducted among 379 patients with acute non-A, non-B, non-C hepatitis in the City of Goiania, Central Brazil. Serum samples of all patients were tested for serological markers of HEV infection (anti-HEV IgM and IgG) by ELISA...
October 13, 2016: Memórias do Instituto Oswaldo Cruz
Paloma Horejs Bittencourt, Carlos Sidney Silva Pimentel, Bianca Sampaio Bonfim, Paulo José Marostica, Edna Lúcia Souza
In Brazil the knowledge about methicillin-resistant Staphylococcus aureus infection in cystic fibrosis patients is scarce. This study aimed to determine the incidence of respiratory tract colonization and the identification rates after a standardized treatment. A retrospective cohort was performed highlighting the history of respiratory colonizations between January 2008 and June 2015. Patients under the age of 21 years with cystic fibrosis confirmed by sweat test or genetic study receiving care at the outpatient clinics of a Teaching Hospital were included...
October 15, 2016: Brazilian Journal of Infectious Diseases
Andrew Olaf Shelton, James Lawrence O'Donnell, Jameal F Samhouri, Natalie Lowell, Gregory D Williams, Ryan P Kelly
Environmental DNA (eDNA), genetic material recovered from an environmental medium such as soil, water, or feces, reflects the membership of the ecological community present in the sampled environment. As such, eDNA is a potentially rich source of data for basic ecology, conservation, and management, because it offers the prospect of quantitatively reconstructing whole ecological communities from easily obtained samples. However, like all sampling methods, eDNA sequencing is subject to methodological limitations that can generate biased descriptions of ecological communities...
September 2016: Ecological Applications: a Publication of the Ecological Society of America
Edna O Kara, Helen Campbell, Sonia Ribeiro, Norman K Fry, David Litt, Seyi Eletu, Gayatri Amirthalingam
BACKGROUND: Highest rates of pertussis occur in infants <3 months old, too young to be fully vaccinated. The 2012 national outbreak provided a valuable opportunity to study sources of infection for these infants at highest risk of severe complications and death. METHODS: Households of infants <3 months old with laboratory-confirmed pertussis between 08/2012 and 10/2013 were invited to complete a questionnaire with information on household members' demographics, relationship with the infant, chronology of cough onset where relevant, and vaccination history...
October 17, 2016: Pediatric Infectious Disease Journal
Charlene Babra Waryah, Kelsi Wells, Dulantha Ulluwishewa, Nigel Chen-Tan, Jully Gogoi-Tiwari, Joshua Ravensdale, Paul Costantino, Anke Gökçen, Andreas Vilcinskas, Jochen Wiesner, Trilochan Mukkur
Staphylococcus aureus in biofilms is highly resistant to the treatment with antibiotics, to which the planktonic cells are susceptible. This is likely to be due to the biofilm creating a protective barrier that prevents antibiotics from accessing the live pathogens buried in the biofilm. S. aureus biofilms consist of an extracellular matrix comprising, but not limited to, extracellular bacterial DNA (eDNA) and poly-β-1, 6-N-acetyl-d-glucosamine (PNAG). Our study revealed that despite inferiority of dispersin B (an enzyme that degrades PNAG) to DNase I that cleaves eDNA, in dispersing the biofilm of S...
October 18, 2016: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
Anna Cho, Todd Morris, Chris Wilson, Joanna Freeland
Environmental DNA (eDNA) is emerging as a potentially powerful tool for inferring species' presence, and hence occupancy, from DNA that is shed into environmental samples such as water. Although eDNA screening has been used to detect DNA from a variety of taxonomic groups, it has not yet been used to identify DNA from species with numerous potentially sympatric confamilial species, a situation that may preclude the development of species-specific markers. There are 41 native freshwater mussel species (Unionidae) in Ontario, Canada...
July 18, 2016: Genome Génome / Conseil National de Recherches Canada
Elizabeth M Irungu, Renee Heffron, Nelly Mugo, Kenneth Ngure, Elly Katabira, Nulu Bulya, Elizabeth Bukusi, Josephine Odoyo, Stephen Asiimwe, Edna Tindimwebwa, Connie Celum, Jared M Baeten
BACKGROUND: Antiretroviral therapy (ART) and pre-exposure prophylaxis (PrEP) reduce HIV-1 transmission within heterosexual HIV-1 serodiscordant couples. Prioritizing couples at highest HIV-1 transmission risk for ART and PrEP would maximize impact and minimize costs. METHODS: The Partners Demonstration Project is an open-label, delivery study of integrated PrEP and ART for HIV-1 prevention among high risk HIV-1 serodiscordant couples in Kenya and Uganda. We evaluated the feasibility of using a validated risk score that weighs a combination of easily measurable factors (age, children, marital status, male circumcision status, condom use, plasma HIV-1 levels) to identify couples at highest risk for HIV-1 transmission for enrollment...
October 17, 2016: BMC Infectious Diseases
Edna Pereira Gomes Morais, Rachel Riera, Gustavo Jm Porfírio, Cristiane R Macedo, Vivian Sarmento Vasconcelos, Alexsandra de Souza Pedrosa, Maria R Torloni
BACKGROUND: Caesarean sections (CS) are the most frequent major surgery in the world. A transient impairment of bowel motility is expected after CS. Although this usually resolves spontaneously within a few days, it can cause considerable discomfort, require symptomatic medication and delay hospital discharge, thus increasing costs. Chewing gum in the immediate postoperative period is a simple intervention that may be effective in enhancing recovery of bowel function in other types of abdominal surgeries...
October 17, 2016: Cochrane Database of Systematic Reviews
Carolyn R Schaeffer, Tra-My N Hoang, Craig M Sudbeck, Malik Alawi, Isaiah E Tolo, D Ashley Robinson, Alexander R Horswill, Holger Rohde, Paul D Fey
Staphylococcus epidermidis is a leading cause of hospital-associated infections, including those of intravascular catheters, cerebrospinal fluid shunts, and orthopedic implants. Multiple biofilm matrix molecules with heterogeneous characteristics have been identified, including proteinaceous, polysaccharide, and nucleic acid factors. Two of the best-studied components in S. epidermidis include accumulation-associated protein (Aap) and polysaccharide intercellular adhesin (PIA), produced by the enzymatic products of the icaADBC operon...
September 2016: MSphere
Anonh Xeuatvongsa, Siddhartha Sankar Datta, Edna Moturi, Kathleen Wannemuehler, Phanmanisone Philakong, Viengnakhone Vongxay, Vansy Vilayvone, Minal K Patel
BACKGROUND: Hepatitis B vaccine birth dose (HepB-BD) was introduced in Lao People's Democratic Republic to prevent perinatal hepatitis B virus transmission in 2008; high coverage is challenging since only 38% of births occur in a health facility. Healthcare workers report being unaware of home births and thus unable to conduct timely postnatal care (PNC) home visits. A quasi-experimental pilot study was conducted wherein mobile phones and phone credits were provided to village health volunteers (VHV) and healthcare workers (HCWs) to assess whether this could improve HepB-BD administration, as well as birth notification and increase home visits...
October 11, 2016: Vaccine
Roque da Silva Araújo, Edna Apparecida Moura Arcuri, Victor Cauê Lopes
Objective: to verify causes of inactivity in the Home Delivery Medicament Program, as referred by users from a Primary Health Care Service in São Paulo, comparing them to the causes registered in the program and analyzing them in the theoretical model Concept of Access to Health. Methods: cross-sectional study, interviewing 111 inactive users; and documentary study in the program records. Results: half of the users did not know the condition of inactivity...
October 10, 2016: Revista Latino-americana de Enfermagem
Edna Perez, Linda S Behar-Horenstein, Marcio Guelmann
Children with intellectual and physical disabilities including autism are susceptible to dental trauma as a sequela from falls due to poor muscular coordination. In addition, their altered muscle tonus often results in an open bite with labial flaring of the maxillary incisors and lip incompetence, predisposing these teeth to fractures. This case report describes an alternative approach of restoring a fractured maxillary permanent central incisor with a composite strip crown during surgical repositioning of the periodontium on an autistic patient...
September 1, 2016: Journal of Contemporary Dental Practice
Andreas Thomann, Christian Brengel, Carsten Börger, Dagmar Kail, Anke Steinbach, Martin Empting, Rolf W Hartmann
Drug-resistant Pseudomonas aeruginosa (PA) strains are on the rise, making treatment with current antibiotics ineffective. Hence, circumventing resistance or restoring the activity of antibiotics by novel approaches is of high demand. Targeting the Pseudomonas quinolone signal quorum sensing (PQS-QS) system is an intriguing strategy to abolish PA pathogenicity without affecting the viability of the pathogen. Herein we report the structure-activity relationships of 2-sulfonylpyrimidines, which were previously identified as dual-target inhibitors of the PQS receptor PqsR and the PQS synthase PqsD...
October 12, 2016: ChemMedChem
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"