keyword
MENU ▼
Read by QxMD icon Read
search

arma

keyword
https://www.readbyqxmd.com/read/27902383/detection-of-isaba1-in-association-with-a-novel-allelic-variant-of-the-%C3%AE-lactamase-adc-82-and-class-d-%C3%AE-lactamase-genes-mediating-carbapenem-resistance-among-the-clinical-isolates-of-mdr-a-baumannii
#1
Rajagopalan Saranathan, Rinki Kumari, Ramakrishnan Kalaivani, Sah Suresh, Anshu Rani, Shashikala Purty, Prashanth K
The objective of the present study is to investigate the diverse resistance determinants, their association with IS mobile elements and predilection of a particular clone for such associations in A. baumannii. Fifty-four consecutive isolates collected during 2011-2012 from a tertiary care hospital were subjected to susceptibility testing followed by PCR screening of commonly reported β-lactamases and 16S rRNA methyl transferase encoding genes. The integrity of RND efflux pump related genes in their respective operons was also investigated...
November 25, 2016: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/27889248/comprehensive-study-to-investigate-the-role-of-various-aminoglycoside-resistance-mechanisms-in-clinical-isolates-of-acinetobacter-baumannii
#2
Vajihe Sheikhalizadeh, Alka Hasani, Mohammad Ahangarzadeh Rezaee, Mohammad Rahmati-Yamchi, Akbar Hasani, Reza Ghotaslou, Hamid Reza Goli
Therapeutic resistance towards most of the current treatment regime by Acinetobacter baumannii has reduced the prescribing antibiotic pattern and option is being re-shifted towards more toxic agents including aminoglycosides. The present investigation aimed at to study various mechanisms towards aminoglycoside non-susceptibility in clinical isolates of A. baumannii. The bacteria were subjected to genetic basis assessment for the presence of aminoglycoside modifying enzymes (AME), 16S rRNA methylase encoding genes and relative expression of AdeABC and AbeM efflux pumps in relation to their susceptibility to five aminoglycosides...
November 23, 2016: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/27885285/emergence-of-aminoglycoside-resistance-due-to-arma-methylase-in-multi-drug-resistant-acinetobacter-baumannii-isolates-in-a-university-hospital-in-nepal
#3
S Shrestha, T Tada, B Shrestha, T Kirikae, H Ohara, B P Rijal, B M Pokhrel, J B Sherchand
BACKGROUND: The emergence of multidrug-resistant Acinetobacter baumannii associated with hospital-acquired infections has been increasingly reported worldwide. 16S rRNA methylase producing Gram-negative bacteria are highly resistant to all clinically important aminoglycosides. We analyzed A. baumannii clinical isolates resistant to aminoglycosides from hospitalized patients. The objective of this study was to investigate the emergence of armA in A.baumannii species associated with nosocomial infection in a university hospital in Nepal...
May 2016: Journal of Nepal Health Research Council
https://www.readbyqxmd.com/read/27882147/molecular-profiling-of-a-simple-rat-model-of-open-tibial-fractures-with-hematoma-and-periosteum-disruption
#4
Jose Rafael Villafan-Bernal, Lorenzo Franco-De La Torre, Ana Soledad Sandoval-Rodriguez, Juan Armendariz-Borunda, Juan Luis Alcala-Zermeno, Jose Alfonso Cruz-Ramos, Gabriela Lopez-Armas, Blanca Estela Ramirez-Bastidas, Gracia Viviana González-Enríquez, Emerson Armando Collazo-Guzman, Raigam Jafet Martinez-Portilla, Sergio Sánchez-Enríquez
Bone fractures are a worldwide public health concern. Therefore, improving understanding of the bone healing process at a molecular level, which could lead to the discovery of potential therapeutic targets, is important. In the present study, a model of open tibial fractures with hematoma disruption, periosteal rupture and internal fixation in 6-month-old male Wistar rats was established, in order to identify expression patterns of key genes and their protein products throughout the bone healing process. A tibial shaft fracture was produced using the three-point bending technique, the hematoma was drained through a 4-mm incision on the medial aspect of the tibia and the fracture stabilized by inserting a needle into the medullary canal...
November 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27865395/innovative-tuberculosis-symposium-held-during-cuba-salud-2015
#5
EDITORIAL
Helena J Chapman, Luisa Armas Pérez
The fourth Tuberculosis (TB) Symposium, held during the Cuba Salud 2015 International Convention, highlighted advancements in research on TB and Mycobacterium tuberculosis (Mtb) by interdisciplinary teams from academic and federal institutions in Cuba, Colombia, Mexico, and the Dominican Republic. Delegates focused on the targets presented in the World Health Organization End TB Strategy for 2016-2035 and elaborated on four primary themes: 1) attention to vulnerable populations such as immunocompromised individuals, health care workers, and residents of long-term institutions such as prisons and nursing homes; 2) identification of active and latent TB cases through contact investigations; 3) spread and control of drug-resistant Mtb strains; and 4) advancements in the development of novel vaccines or "booster" immunizations...
December 2016: Tuberculosis
https://www.readbyqxmd.com/read/27818659/molecular-epidemiology-of-multi-drug-resistant-acinetobacter-baumannii-isolated-in-shandong-china
#6
Meijie Jiang, Lijuan Liu, Yunhua Ma, Zhijun Zhang, Ning Li, Fusen Zhang, Shuping Zhao
Acinetobacter baumannii is an emerging nosocomial pathogen prevalent in hospitals worldwide. In order to understand the molecular epidemiology of multi-drug resistant (MDR) A. baumannii, we investigated the genotypes of A. baumannii isolated from 10 hospitals in Shandong, China, from August 2013 to December 2013, by pulsed field gel electrophoresis (PFGE) and multilocus sequence typing (MLST). Antimicrobial resistance genes were analyzed by PCR and DNA sequencing. By PFGE analysis, we discovered 11 PFGE types in these 10 hospitals...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27807541/single-trial-sparse-representation-based-approach-for-vep-extraction
#7
Nannan Yu, Funian Hu, Dexuan Zou, Qisheng Ding, Hanbing Lu
Sparse representation is a powerful tool in signal denoising, and visual evoked potentials (VEPs) have been proven to have strong sparsity over an appropriate dictionary. Inspired by this idea, we present in this paper a novel sparse representation-based approach to solving the VEP extraction problem. The extraction process is performed in three stages. First, instead of using the mixed signals containing the electroencephalogram (EEG) and VEPs, we utilise an EEG from a previous trial, which did not contain VEPs, to identify the parameters of the EEG autoregressive (AR) model...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27805652/polarization-evolution-of-vector-wave-amplitudes-in-twisted-fibers-pumped-by-single-and-paired-pulses
#8
M Almanee, J W Haus, I Armas-Rivera, G Beltrán-Pérez, B Ibarra-Escamilla, M Duran-Sanchez, R I Álvarez-Tamayo, E A Kuzin, Y E Bracamontes-Rodríguez, O Pottiez
Nonlinear polarization dynamics of single and paired pulses in twisted fibers is experimentally and numerically studied. Accompanying a dramatic difference in the output spectrum when a single- or double-amplified soliton pulse is launched in the fiber, the output polarization for the two cases also reveals very different characteristics.
November 1, 2016: Optics Letters
https://www.readbyqxmd.com/read/27790632/infodemiological-data-of-high-school-drop-out-related-web-searches-in-canada-correlating-with-real-world-statistical-data-in-the-period-2004-2012
#9
Anna Siri, Hicham Khabbache, Ali Al-Jafar, Mariano Martini, Francesco Brigo, Nicola Luigi Bragazzi
The present data article describes high-school drop-out related web activities in Canada, from 2004 to 2012, obtained mining Google Trends (GT), using high-school drop-out as key-word. The searches volumes were processed, correlated and cross-correlated with statistical data obtained at national and province level and broken down for gender. Further, an autoregressive moving-average (ARMA) model was used to model the GT-generated data. From a qualitative point of view, GT-generated relative search volumes (RSVs) reflect the decrease in drop-out rate...
December 2016: Data in Brief
https://www.readbyqxmd.com/read/27762345/metabolomic-responses-of-arabidopsis-suspension-cells-to-bicarbonate-under-light-and-dark-conditions
#10
Biswapriya B Misra, Zepeng Yin, Sisi Geng, Evaldo de Armas, Sixue Chen
Global CO2 level presently recorded at 400 ppm is expected to reach 550 ppm in 2050, an increment likely to impact plant growth and productivity. Using targeted LC-MS and GC-MS platforms we quantified 229 and 29 metabolites, respectively in a time-course study to reveal short-term responses to different concentrations (1, 3, and 10 mM) of bicarbonate (HCO3(-)) under light and dark conditions. Results indicate that HCO3(-) treatment responsive metabolomic changes depend on the HCO3(-) concentration, time of treatment, and light/dark...
October 20, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27759212/replication-of-genome-wide-association-study-gwas-susceptibility-loci-in-a-latino-bipolar-disorder-cohort
#11
Suzanne Gonzalez, Jayanta Gupta, Erika Villa, Indika Mallawaarachchi, Marco Rodriguez, Mercedes Ramirez, Juan Zavala, Regina Armas, Albana Dassori, Javier Contreras, Deborah Flores, Alvaro Jerez, Alfonso Ontiveros, Humberto Nicolini, Michael Escamilla
OBJECTIVES: Recent genome-wide association studies (GWASs) have identified numerous putative genetic polymorphisms associated with bipolar disorder (BD) and/or schizophrenia (SC). We hypothesized that a portion of these polymorphisms would also be associated with BD in the Latino American population. To identify such regions, we tested previously identified genetic variants associated with BD and/or SC and ancestral haploblocks containing these single nucleotide polymorphisms (SNPs) in a sample of Latino subjects with BD...
September 2016: Bipolar Disorders
https://www.readbyqxmd.com/read/27751911/prxq-b-from-mycobacterium-tuberculosis-is-a-monomeric-thioredoxin-dependent-and-highly-efficient-fatty-acid-hydroperoxide-reductase
#12
Aníbal M Reyes, Diego S Vazquez, Ari Zeida, Martín Hugo, M Dolores Piñeyro, María Inés De Armas, Darío Estrin, Rafael Radi, Javier Santos, Madia Trujillo
Mycobacterium tuberculosis (M. tuberculosis) is the intracellular bacterium responsible for tuberculosis disease (TD). Inside the phagosomes of activated macrophages, M. tuberculosis is exposed to cytotoxic hydroperoxides such as hydrogen peroxide, fatty acid hydroperoxides and peroxynitrite. Thus, the characterization of the bacterial antioxidant systems could facilitate novel drug developments. In this work, we characterized the product of the gene Rv1608c from M. tuberculosis, which according to sequence homology had been annotated as a putative peroxiredoxin of the peroxiredoxin Q subfamily (PrxQ B from M...
October 15, 2016: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/27734318/deep-learning-architecture-for-air-quality-predictions
#13
Xiang Li, Ling Peng, Yuan Hu, Jing Shao, Tianhe Chi
With the rapid development of urbanization and industrialization, many developing countries are suffering from heavy air pollution. Governments and citizens have expressed increasing concern regarding air pollution because it affects human health and sustainable development worldwide. Current air quality prediction methods mainly use shallow models; however, these methods produce unsatisfactory results, which inspired us to investigate methods of predicting air quality based on deep architecture models. In this paper, a novel spatiotemporal deep learning (STDL)-based air quality prediction method that inherently considers spatial and temporal correlations is proposed...
October 13, 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27722676/directed-self-assembly-of-nematic-liquid-crystals-on-chemically-patterned-surfaces-morphological-states-and-transitions
#14
Xiao Li, Julio C Armas-Perez, Jose A Martinez-Gonzalez, Xiaoying Liu, Helou Xie, Camille Bishop, Juan P Hernandez-Ortiz, Rui Zhang, Juan J de Pablo, Paul F Nealey
The morphology and through-film optical properties of nematic liquid crystals (LCs) confined between two surfaces may be engineered to create switches that respond to external electric fields, thereby enabling applications in optoelectronics that require fast responses and low power. Interfacial properties between the confining surfaces and the LC play a central role in device design and performance. Here we investigate the morphology of LCs confined in hybrid cells with a top surface that exhibits uniform homeotropic anchoring and a bottom surface that is chemically patterned with sub-micron and micron- wide planar anchoring stripes in a background of homeotropic anchoring...
September 27, 2016: Soft Matter
https://www.readbyqxmd.com/read/27722420/mesoscale-structure-of-chiral-nematic-shells
#15
Ye Zhou, Ashley Guo, Rui Zhang, Julio C Armas-Perez, José A Martínez-González, Mohammad Rahimi, Monirosadat Sadati, Juan J de Pablo
There is considerable interest in understanding and controlling topological defects in nematic liquid crystals (LCs). Confinement, in the form of droplets, has been particularly effective in that regard. Here, we employ a Landau-de Gennes formalism to explore the geometrical frustration of nematic order in shell geometries, and focus on chiral materials. By varying the chirality and thickness in uniform shells, we construct a phase diagram that includes tetravalent structures, bipolar structures (BS), bent structures and radial spherical structures (RSS)...
September 30, 2016: Soft Matter
https://www.readbyqxmd.com/read/27696937/transcriptional-control-by-g-quadruplexes-in-vivo-roles-and-perspectives-for-specific-intervention
#16
Pablo Armas, Aldana David, Nora Calcaterra
G-quadruplexes are non-canonical DNA secondary structures involved in several genomic and molecular processes. Here we summarize the main G-quadruplex features and evidences proving the in vivo role on the transcriptional regulation of genes required for zebrafish embryonic development. We also discuss alternative strategies for specifically interfering G-quadruplex in vivo.
October 3, 2016: Transcription
https://www.readbyqxmd.com/read/27696288/communities-of-endophytic-microorganisms-in-different-developmental-stages-from-a-local-variety-as-well-as-transgenic-and-conventional-isogenic-hybrids-of-maize
#17
Kelly Justin da Silva, Rafael Dutra de Armas, Cláudio Roberto F S Soares, Juliana Bernardi Ogliari
The diversity of endophytic microorganisms may change due to the genotype of the host plant and its phenological stage. In this study we evaluated the effect of phenological stage, transgenes and genetic composition of maize on endophytic bacterial and fungal communities. The maize populations were composed of a local variety named Rosado (RS) and three isogenic hybrids. One isogenic hybrid was not genetically modified (NGM). Another hybrid (Hx) contained the transgenes cry1F and pat (T1507 event), which provide resistance to insects of the order Lepidoptera and tolerance to the glufosinate-ammonium herbicide, respectively...
November 2016: World Journal of Microbiology & Biotechnology
https://www.readbyqxmd.com/read/27672380/occurence-of-arma-and-rmtb-aminoglycoside-resistance-16s-rrna-methylases-in-extended-spectrum-%C3%AE-lactamases-producing-escherichia-coli-in-algerian-hospitals
#18
Amel Ayad, Mourad Drissi, Claire de Curraize, Chloé Dupont, Alain Hartmann, Sébastien Solanas, Eliane Siebor, Lucie Amoureux, Catherine Neuwirth
The aim of this study, was to characterize the extended-spectrum-β-lactamases (ESBLs) producing clinical strains of Escherichia coli isolated between January 2009 and June 2012 from Algerian hospitals and to determine the prevalence of 16S rRNA methylase among them. Sixty-seven ESBL-producers were detected among the 239 isolates included: 52 CTX-M-15-producers, 5 CTX-M-3-producers, 5 CTX-M-1-producers, 2 CTX-M-14-producers, 2 SHV-12-producers and one TEM-167-producer. Among the ESBL-producing strains twelve harbored 16S rRNA methylase genes: 8 rmtB and 4 armA...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27647319/triplet-repeat-primed-pcr-tp-pcr-in-molecular-diagnostic-testing-for-spinocerebellar-ataxia-type-3-sca3
#19
Ana Rosa Vieira Melo, Amanda Ramos, Nadiya Kazachkova, Mafalda Raposo, Bruno Filipe Bettencourt, Ana Rita Rendeiro, Teresa Kay, João Vasconcelos, Jácome Bruges-Armas, Manuela Lima
INTRODUCTION AND OBJECTIVE: Spinocerebellar ataxia type 3 (SCA3) is a polyglutamine (polyQ) disorder for which the routine molecular testing is based on PCR and automated capillary electrophoresis. When only a normal allele is detected by standard PCR, the hypothesis of a failed amplification of the expanded allele must be raised. In such cases, complementary techniques such as Southern Blot or triplet repeat primed PCR (TP-PCR) have to be applied. For SCA3, TP-PCR is implemented in some diagnostic laboratories, but a tested protocol has yet to be published...
September 20, 2016: Molecular Diagnosis & Therapy
https://www.readbyqxmd.com/read/27639475/nitrogen-transforming-bacteria-within-a-full-scale-partially-saturated-vertical-subsurface-flow-constructed-wetland-treating-urban-wastewater
#20
Catiane Pelissari, Cristina Ávila, Camila Maria Trein, Joan García, Rafael Dultra de Armas, Pablo Heleno Sezerino
The aim of this study was to characterize the nitrogen transforming bacterial communities within a partially saturated vertical subsurface flow constructed wetland (VF) treating urban wastewater in southern Brazil. The VF had a surface area of 3144m(2), and was divided into four wetland cells, out of which two were operated while the other two rested, alternating cycles of 30days. The nitrifying and denitrifying bacterial communities were characterized in wetland cell 3 (764m(2) surface area) over a period of 12months by using the FISH technique...
September 15, 2016: Science of the Total Environment
keyword
keyword
62004
1
2
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"