keyword
MENU ▼
Read by QxMD icon Read
search

Strain

keyword
https://www.readbyqxmd.com/read/29346850/trends-in-the-minimum-inhibitory-concentrations-of-erythromycin-clarithromycin-azithromycin-ciprofloxacin-and-trimethoprim-sulfamethoxazole-for-strains-of-bordetella-pertussis-isolated-in-the-czech-republic-in-1967-2015
#1
Vladislav Jakubů, Jana Zavadilová, Kateřina Fabiánová, Urbášková Pavla
No abstract text is available yet for this article.
December 2017: Central European Journal of Public Health
https://www.readbyqxmd.com/read/29346735/mechanisms-of-modulation-of-calcium-phosphate-pathological-mineralization-by-mobile-and-immobile-small-molecule-inhibitors
#2
Meng Li, Jing Zhang, Lijun Wang, Baoshan Wang, Christine V Putnis
Potential pathways for inhibiting crystal growth are either via disrupting local microenvironments surrounding crystal-solution interfaces or physically blocking solute molecule attachment. However, the actual mode of inhibition may be more complicated due to the characteristic time scale for the inhibitor adsorption and relaxation to a well-bound state at crystal surfaces. Here we demonstrate the role of citrate (CA) and hydroxycitrate (HCA) in brushite (DCPD, CaHPO4·2H2O) crystallization over a broad range of both inhibitor concentrations and supersaturations by in situ atomic force microscopy (AFM)...
January 18, 2018: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/29346723/shear-induced-brittle-failure-along-grain-boundaries-in-boron-carbide
#3
Xiaokun Yang, Shawn P Coleman, Jerry Lasalvia, William A Goddard, Qi An
The roles of grain boundaries (GB) in mechanical properties have been examined extensively for metals and alloys; however, for covalent solids their roles in deformation response to applied stress are much less established. We consider here the unusual ceramic, boron carbide (B4C), which is very hard and lightweight but exhibits brittle impact behavior. We used quantum mechanics (QM) simulations to determine the mechanical response in the atomistic structures at GBs under pure shear and also with biaxial shear deformation that mimics indentation stress conditions...
January 18, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29346648/esrb-negatively-regulates-expression-of-the-glutamine-sythetase-glna-in-the-fish-pathogen-edwardsiella-piscicida
#4
Yunpeng Guan, Kaiyu Yin, Mian Zhou, Minjun Yang, Yuanxing Zhang, Xiaohong Liu, Qiyao Wang
Edwardsiella piscicida is a gram-negative bacterial pathogen invading a wide range of fish species. Response regulator EsrB is essential for activation of type III and type VI secretion systems (T3/T6SS). In this study, proteomes of the wild type E. piscicida EIB202 and a ΔesrB mutant strains were compared to identify the regulon components of EsrB cultured in DMEM allowing T3/T6SS expression. As a result, 19 proteins showed different expression, which were identified to be associated with T3/T6SS, related to amino acid transport and metabolism, and energy production...
January 15, 2018: FEMS Microbiology Letters
https://www.readbyqxmd.com/read/29346643/genetic-characterization-of-a-vang-type-vancomycin-resistant-enterococcus-faecium-clinical-isolate
#5
Mohamed Sassi, François Guérin, Léonie Lesec, Christophe Isnard, Marguerite Fines-Guyon, Vincent Cattoir, Jean-Christophe Giard
Objectives: To characterize, phenotypically and genotypically, the first Enterococcus faecium clinical isolate harbouring a vanG operon. Methods: The antibiotic resistance profile of E. faecium 16-346 was determined and its whole genome sequenced using PacBio technology. Attempts to transfer vancomycin resistance by filter mating were performed and the inducibility of expression of the vanG operon was studied by reverse-transcription quantitative PCR (RT-qPCR) in the presence or absence of subinhibitory concentrations of vancomycin...
January 16, 2018: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/29346641/uncovering-behavioural-diversity-amongst-high-strength-pseudomonas-spp-surfactants-at-the-limit-of-liquid-surface-tension-reduction
#6
Kamaluddeen Kabir, Yusuf Y Deeni, Simona M Hapca, Luke Moore, Andrew J Spiers
Bacterial bio-surfactants have a wide range of biological functions and biotechnological applications. Previous analyses had suggested a limit to their reduction of aqueous liquid surface tensions (γMin), and here we confirm this in an analysis of 25 Pseudomonas spp. strains isolated from soil which produce high-strength surfactants that reduce surface tensions to 25.2 ± 0.1-26.5 ± 0.2 mN.m-1 (the surface tension of sterile growth medium and pure water was 52.9 ± 0.4 mN.m-1 and 72.1 ± 1.2 mN.m-1, respectively)...
January 16, 2018: FEMS Microbiology Letters
https://www.readbyqxmd.com/read/29346625/complete-genomic-and-transcriptional-landscape-analysis-using-third-generation-sequencing-a-case-study-of-saccharomyces-cerevisiae-cen-pk113-7d
#7
Piroon Jenjaroenpun, Thidathip Wongsurawat, Rui Pereira, Preecha Patumcharoenpol, David W Ussery, Jens Nielsen, Intawat Nookaew
Completion of eukaryal genomes can be difficult task with the highly repetitive sequences along the chromosomes and short read lengths of second-generation sequencing. Saccharomyces cerevisiae strain CEN.PK113-7D, widely used as a model organism and a cell factory, was selected for this study to demonstrate the superior capability of very long sequence reads for de novo genome assembly. We generated long reads using two common third-generation sequencing technologies (Oxford Nanopore Technology (ONT) and Pacific Biosciences (PacBio)) and used short reads obtained using Illumina sequencing for error correction...
January 13, 2018: Nucleic Acids Research
https://www.readbyqxmd.com/read/29346603/homologous-stress-adaptation-antibiotic-resistance-and-biofilm-forming-ability-of-salmonella-enterica-serovar-heidelberg-atcc8326-on-different-food-contact-surfaces-following-exposure-to-sublethal-chlorine-concentrations
#8
Tomi Obe, Rama Nannapaneni, Chander Shekhar Sharma, Aaron Kiess
Salmonella enterica serovar Heidelberg (American Type Culture Collection; ATCC 8326) was examined for the ability to adapt to the homologous stress of chlorine through exposure to increasing chlorine concentrations (25 ppm daily increments) in tryptic soy broth (TSB). The tested strain exhibited an acquired tolerance to chlorine in TSB with the tolerant cells growing in concentrations up to 400 ppm. In addition, the chlorine stressed cells displayed rugose morphology on tryptic soy agar (TSA) plates at 37°C...
January 13, 2018: Poultry Science
https://www.readbyqxmd.com/read/29346584/in-vitro-interactions-between-iap-antagonist-at406-and-azoles-against-planktonic-cells-and-biofilms-of-pathogenic-fungi-candida-albicans-and-exophiala-dermatitidis
#9
Yi Sun, Lujuan Gao, Chengyan He, Ming Li, Tongxiang Zeng
In vitro interactions of AT406, a novel IAP antagonist, and azoles including itraconazole, voriconazole, and fluconazole against planktonic cells and biofilms of Candida albicans and Exophiala dermatitidis were assessed via broth microdilution checkerboard technique. AT406 alone exhibited limited antifungal activity. However, synergistic effect between AT406 and fluconazole was observed against both planktonic cells and biofilms of C. albicans, including one fluconazole-resistant strain. Moreover, synergism was also demonstrated between AT406 and itraconazole against both planktonic cells and biofilms of E...
January 13, 2018: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
https://www.readbyqxmd.com/read/29346438/colonization-of-the-cervicovaginal-space-with-gardnerella-vaginalis-leads-to-local-inflammation-and-cervical-remodeling-in-pregnant-mice
#10
Luz-Jeannette Sierra, Amy G Brown, Guillermo O Barilá, Lauren Anton, Carrie E Barnum, Snehal S Shetye, Louis J Soslowsky, Michal A Elovitz
The role of the cervicovaginal (CV) microbiome in regulating cervical function during pregnancy is poorly understood. Gardnerella vaginalis (G. vaginalis) is the most common bacteria associated with the diagnosis of bacterial vaginosis (BV). While BV has been associated with preterm birth (PTB), clinical trials targeting BV do not decrease PTB rates. It remains unknown if G. vaginalis is capable of triggering molecular, biomechanical and cellular events that could lead to PTB. The objective of this study was to determine if cervicovaginal colonization with G...
2018: PloS One
https://www.readbyqxmd.com/read/29346413/genetic-diversity-and-potential-routes-of-transmission-of-mycobacterium-bovis-in-mozambique
#11
Adelina Machado, Teresa Rito, Solomon Ghebremichael, Nuelma Muhate, Gabriel Maxhuza, Custodia Macuamule, Ivania Moiane, Baltazar Macucule, Angelica Suzana Marranangumbe, Jorge Baptista, Joaquim Manguele, Tuija Koivula, Elizabeth Maria Streicher, Robin Mark Warren, Gunilla Kallenius, Paul van Helden, Margarida Correia-Neves
Bovine tuberculosis is a zoonotic disease with largely unknown impact in Africa, with risk factors such as HIV and direct contact with animals or consumption of Mycobacterium bovis infected animal products. In order to understand and quantify this risk and design intervention strategies, good epidemiological studies are needed. Such studies can include molecular typing of M. bovis isolates. The aim of this study was to apply these tools to provide novel information concerning the distribution of bovine tuberculosis in cattle in Mozambique and thereby provide relevant information to guide policy development and strategies to contain the disease in livestock, and reduce the risk associated with transmission to humans...
January 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29346393/computational-study-of-hiv-gp120-as-a-target-for-polyanionic-entry-inhibitors-exploiting-the-v3-loop-region
#12
Louis R Hollingsworth, Anne M Brown, Richard D Gandour, David R Bevan
Multiple approaches are being utilized to develop therapeutics to treat HIV infection. One approach is designed to inhibit entry of HIV into host cells, with a target being the viral envelope glycoprotein, gp120. Polyanionic compounds have been shown to be effective in inhibiting HIV entry, with a mechanism involving electrostatic interactions with the V3 loop of gp120 being proposed. In this study, we applied computational methods to elucidate molecular interactions between the repeat unit of the precisely alternating polyanion, Poly(4,4'-stilbenedicarboxylate-alt-maleic acid) (DCSti-alt-MA) and the V3 loop of gp120 from strains of HIV against which these polyanions were previously tested (IIIb, BaL, 92UG037, JR-CSF) as well as two strains for which gp120 crystal structures are available (YU2, 2B4C)...
2018: PloS One
https://www.readbyqxmd.com/read/29346379/a-putative-lateral-flagella-of-the-cystic-fibrosis-pathogen-burkholderia-dolosa-regulates-swimming-motility-and-host-cytokine-production
#13
Damien Roux, Matthew Schaefers, Bradley S Clark, Molly Weatherholt, Diane Renaud, David Scott, John J LiPuma, Gregory Priebe, Craig Gerard, Deborah R Yoder-Himes
Burkholderia dolosa caused an outbreak in the cystic fibrosis clinic at Boston Children's Hospital and was associated with high mortality in these patients. This species is part of a larger complex of opportunistic pathogens known as the Burkholderia cepacia complex (Bcc). Compared to other species in the Bcc, B. dolosa is highly transmissible; thus understanding its virulence mechanisms is important for preventing future outbreaks. The genome of one of the outbreak strains, AU0158, revealed a homolog of the lafA gene encoding a putative lateral flagellin, which, in other non-Bcc species, is used for movement on solid surfaces, attachment to host cells, or movement inside host cells...
2018: PloS One
https://www.readbyqxmd.com/read/29346329/anti-phytopathogenic-and-cytotoxic-activities-of-crude-extracts-and-secondary-metabolites-of-marine-derived-fungi
#14
Dong-Lin Zhao, Dan Wang, Xue-Ying Tian, Fei Cao, Yi-Qiang Li, Cheng-Sheng Zhang
Thirty-one isolates belonging to eight genera in seven orders were identified from 141 strains that were isolated from several marine plants. Alternaria sp. and Fusarium sp. were found to be the predominant fungi. Evaluation of the anti-phytopathogenic bacterial and fungal activities, as well as the cytotoxicity of these 31 extracts, revealed that most of them displayed different levels of bioactivities. Due to their interesting bioactivities, two fungal strains-Fusarium equiseti (P18) and Alternaria sp. (P8)-were selected for chemical investigation and compounds 1-4 were obtained...
January 18, 2018: Marine Drugs
https://www.readbyqxmd.com/read/29346296/highly-sensitive-strain-sensor-based-on-a-novel-mach-zehnder-interferometer-with-tcf-pcf-structure
#15
Xinran Dong, Haifeng Du, Zhi Luo, Ji'an Duan
A highly sensitive strain sensor based on a novel fiber in line Mach-Zehnder interferometer (MZI) was demonstrated experimentally. The MZI was realized by splicing a section of photonic crystal fiber (PCF) with the same length of thin core fiber (TCF) between two single mode fibers (SMFs). The fringe visibility of MZI can reach as high as 20 dB in air. In particular, the strain sensitivity of -1.95 pm/με was achieved within a range from 0 to 4000 με. Furthermore, the strain properties of different length of MZI was investigated...
January 18, 2018: Sensors
https://www.readbyqxmd.com/read/29346295/peri-elastodynamic-simulations-of-guided-ultrasonic-waves-in-plate-like-structure-with-surface-mounted-pzt
#16
Subir Patra, Hossain Ahmed, Sourav Banerjee
Peridynamic based elastodynamic computation tool named Peri-elastodynamics is proposed herein to simulate the three-dimensional (3D) Lamb wave modes in materials for the first time. Peri-elastodynamics is a nonlocal meshless approach which is a scale-independent generalized technique to visualize the acoustic and ultrasonic waves in plate-like structure, micro-electro-mechanical systems (MEMS) and nanodevices for their respective characterization. In this article, the characteristics of the fundamental Lamb wave modes are simulated in a sample plate-like structure...
January 18, 2018: Sensors
https://www.readbyqxmd.com/read/29346276/comparison-of-the-response-of-male-balb-c-and-c57bl-6-mice-in-behavioral-tasks-to-evaluate-cognitive-function
#17
Yenela Garcia, Nashelly Esquivel
To evaluate several cognitive parameters during the execution of behavioral tasks assessing cognitive function in laboratory animals, the parameters are reported within a range. This situation entails that each laboratory must establish the conditions under which the behavioral task to evaluate the cognitive function can be carried out. C57BL/6 and BALB/c inbred strains are used more often in behavioral studies relating to anxiety, stress, fear and cognitive function. The aim of this work was to compare the behavioral response of mice of the strains BALB/c and C57BL/6 to evaluate memory and learning as cognitive functions...
January 18, 2018: Behavioral Sciences
https://www.readbyqxmd.com/read/29346272/viral-and-antibody-kinetics-and-mosquito-infectivity-of-an-imported-case-of-zika-fever-due-to-asian-genotype-american-strain-in-singapore
#18
Cheong Huat Tan, Li Kiang Tan, Hapuarachchige Chanditha Hapuarachchi, Yee Ling Lai, Pei Sze Jeslyn Wong, Grace Yap, Keng Wai Mak, Wing Yan Wong, Yee Sin Leo, Mei Chun Wong, Lee Ching Ng
We report a case of a Singaporean who acquired Zika virus (ZIKV) during a visit to Cuba. The infection was confirmed using molecular and serological methods. This report highlights potential drawbacks of using IgG serology for diagnosis of flavivirus infections in endemic regions. The low viremia detected during the early phase of this case resulted in low mosquito infectivity rates, suggesting the possibility of ZIKV transmission prior to clinical onset. The report also emphasizes the challenges of public health interventions for Zika fever and the importance of sustaining a low vector population to reduce the risk of arbovirus transmission in vulnerable regions...
January 18, 2018: Viruses
https://www.readbyqxmd.com/read/29346088/intense-olfactory-stimulation-blocks-seizures-in-an-experimental-model-of-epilepsy
#19
Polianna Delfino-Pereira, Poliana Bertti-Dutra, Eduardo Henrique de Lima Umeoka, José Antônio Cortes de Oliveira, Victor Rodrigues Santos, Artur Fernandes, Simone Saldanha Marroni, Flávio Del Vecchio, Norberto Garcia-Cairasco
There are reports of patients whose epileptic seizures are prevented by means of olfactory stimulation. Similar findings were described in animal models of epilepsy, such as the electrical kindling of amygdala, where olfactory stimulation with toluene (TOL) suppressed seizures in most rats, even when the stimuli were 20% above the threshold to evoke seizures in already kindled animals. The Wistar Audiogenic Rat (WAR) strain is a model of tonic-clonic seizures induced by acute acoustic stimulation, although it also expresses limbic seizures when repeated acoustic stimulation occurs - a process known as audiogenic kindling (AK)...
January 12, 2018: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/29346074/a-partial-deletion-within-foot-and-mouth-disease-virus-non-structural-protein-3a-causes-clinical-attenuation-in-cattle-but-does-not-prevent-subclinical-infection
#20
Carolina Stenfeldt, Jonathan Arzt, Juan M Pacheco, Douglas P Gladue, George R Smoliga, Ediane B Silva, Luis L Rodriguez, Manuel V Borca
Deletions within the 3A coding region of foot-and-mouth disease virus (FMDV) are associated with decreased virulence in cattle; however, the mechanisms are unknown. We compared experimental infection of cattle with virulent FMDV O1Campos (O1Ca) and a mutant derivative (O1Ca∆3A) lacking residues 87-106 of 3A. Unexpectedly, primary infection of the nasopharyngeal mucosa was similar for both viruses. However, while O1Ca caused viremia and fulminant clinical disease, O1Ca∆3A infection was subclinical and aviremic...
January 12, 2018: Virology
keyword
keyword
3627
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"