Complete Nucleotide Sequence of Plasmids of Two Escherichia coli Strains Carrying blaNDM –5 and blaNDM–5 and blaOXA–181 From the Same Patient

In conclusion, the detection of two different NDM-5 E. coli strains from a pediatric patient with a history of travel to the Far East countries strongly highlight an increasing trend and risk of importation from such areas.
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research

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unquist The goal of our study was to measure the kinetics of human colorectal cancer (CRC) development in order to identify aberrant mechanisms in tissue dynamics and processes that contribute to colon tumorigenesis. The kinetics of tumor development were investigated using age-at-tumor diagnosis (adenomas and CRCs) of familial adenomatous coli (FAP) patients and sporadic CRC patients. Plots of age-at-tumor diagnosis data as a function of age showed a distinct sigmoidal-shaped curve that is characteristic of an autocatalytic reaction. Consequently, we performed logistics function analysis and found an excellent fit (p ...
Source: Cancers - Category: Cancer & Oncology Authors: Tags: Article Source Type: research
Publication date: Available online 14 February 2020Source: Materials LettersAuthor(s): Yuanyuan Wei, Yiyang Ma, Jingjing Chen, Xuexia Yang, Shirong Ni, Feng Hong, Siyu NiAbstractA novel ordered TiO2 nanodot array on 316LSS (NTA/316LSS) was first prepared by sol-gel in situ growth method. The surface microstructure, chemical components, antibacterial activity and cytocompatibility of the samples were characterized. The results showed that anatase TiO2 nanogranules (45 ± 5 nm) were embedded into nanopits (50 ± 5 nm) and arrayed in an ordered manner. The in vitro antibacterial test showed that there was a 96.3 &...
Source: Materials Letters - Category: Materials Science Source Type: research
Publication date: Available online 14 February 2020Source: Materials Chemistry and PhysicsAuthor(s): C.M. Martínez, M. Rivera-Hernández, Luis H. Álvarez, Ismael Acosta-Rodríguez, F. Ruíz, V.D. Compeán-GarcíaAbstractMicrobially induced carbonate precipitation (MICP) has been exploited as an efficient strategy to immobilize toxic metals in the form of carbonate salts. The present study investigated the cadmium carbonate (CdCO3) precipitation induced by an anaerobic granular sludge. The results revealed that anaerobic sludge showed high Cd utilization efficiencies (97.4% &plusm...
Source: Materials Chemistry and Physics - Category: Materials Science Source Type: research
Publication date: Available online 14 February 2020Source: LWTAuthor(s): Michelle Felix de Andrade, Ivo Diego de Lima Silva, Gisely Alves da Silva, Paulo Victor David Cavalcante, Fabiana Thayse da Silva, Yeda Medeiros Bastos de Almeida, Gloria Maria Vinhas, Laura Hacker de CarvalhoAbstractThe development of new packaging for food preservation has been improving every day. The present work aims to evaluate the influence of orange oil on the properties of active films produced from PBAT by solvent casting, in concentrations of 0, 5, 10 and 15 (wt. %) of Orange essential oil. These films were prepared under constant stirring ...
Source: LWT Food Science and Technology - Category: Food Science Source Type: research
Publication date: Available online 14 February 2020Source: Research in MicrobiologyAuthor(s): Arvi Jõers, Eliis Liske, Tanel TensonAbstractThe bacterial growth cycle contains different phases: after the growth substrate is exhausted or the toxic waste products accumulate the growth stops. In this non-growing culture the number of colony forming bacteria remains constant or starts to decrease. It has been shown that during prolonged incubation there is constant growth and death of bacteria and certain mutant populations take over the culture. Here we show that the dynamic cell division and death balance can be obtain...
Source: Research in Microbiology - Category: Microbiology Source Type: research
ConclusionsThe results of this work provide systematic data on antibacterial efficacy of miramistin. They also underscore the need in relevant in vivo models for evaluation of antiseptics' efficacy. While the existing in vitro methods can be successfully applied at the discovery stages, it is necessary to use more realistic in vivo models at more advanced development stages. The observed selectivity reversal effect should be taken into account when carrying out the antiseptics’ efficacy testing and surface disinfection procedures.
Source: Microbial Pathogenesis - Category: Infectious Diseases Source Type: research
In conclusion, we propose that LGG can be safely administered to toddlers and older children to manage the symptoms of AGE and prevent AAD. These findings should be considered for incorporation into clinical practice guidelines and should help to focus the efforts of the probiotic industry. PMID: 32059116 [PubMed - as supplied by publisher]
Source: Postgraduate Medicine - Category: Internal Medicine Tags: Postgrad Med Source Type: research
Publication date: March 2020Source: Colloid and Interface Science Communications, Volume 35Author(s): Bernhard Lauß, Christian Rapp, Dorothea Leis, Bernd Nidetzky, Regina KratzerGraphical abstract
Source: Colloids and Interface Science Communications - Category: Nanotechnology Source Type: research
Publication date: Available online 14 February 2020Source: Materials Today: ProceedingsAuthor(s): Michelina Catauro, Federico Barrino, Severina Pacifico, Simona Piccolella, Isabella Lancellotti, Cristina LeonelliAbstractAlkali activated metakaolin-based geopolymer materials were used to blend in fine powder glasses from waste electric and electronic equipment. In particular, glasses from funnel and panel parts of cathode ray tubes were recovered and re-utilized, thus obtaining GPVFNL and GPVBa enriched geopolymers. The materials were characterized by means of Fourier Transform InfraRed spectroscopy (FT-IR), and in order to...
Source: Materials Today: Proceedings - Category: Materials Science Source Type: research
Cytochromebd‐I oxidase is a terminal reductase of bacterial respiratory chains produced under low oxygen concentrations, oxidative stress, and during pathogenicity. While the bulk of the protein forms transmembrane helices, a periplasmic domain, the Q‐loop, is expected to be involved in binding and oxidatio n of (ubi)quinol. According to the length of the Q‐loop,bd oxidases are classified into the S (short) ‐ and the L (long)‐subfamilies. Here, we show that either shortening the Q‐loop of theEscherichia  coli oxidase from the L ‐subfamily or replacing it by one from the S‐subfamily leads to the product...
Source: FEBS Letters - Category: Biochemistry Authors: Tags: Research Letter Source Type: research
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