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https://www.readbyqxmd.com/read/29048880/interactions-of-native-cyclodextrins-with-metal-ions-and-inorganic-nanoparticles-fertile-landscape-for-chemistry-and-materials-science
#1
Daniel Prochowicz, Arkadiusz Kornowicz, Janusz Lewiński
Readily available cyclodextrins (CDs) with an inherent hydrophobic internal cavity and hydrophilic external surface are macrocyclic entities that display a combination of molecular recognition and complexation properties with vital implications for host-guest supramolecular chemistry. While the host-guest chemistry of CDs has been widely recognized and led to their exploitation in a variety of important functions over the last five decades, these naturally occurring macrocyclic systems have emerged only recently as promising macrocyclic molecules to fabricate environmentally benign functional nanomaterials...
October 19, 2017: Chemical Reviews
https://www.readbyqxmd.com/read/29047256/analysis-of-genes-with-alternatively-spliced-transcripts-in-the-leaf-root-panicle-and-seed-of-rice-using-a-long-oligomer-microarray-and-rna-seq
#2
Songhwa Chae, Joung Sug Kim, Kyong Mi Jun, Sang-Bok Lee, Myung Soon Kim, Baek Hie Nahm, Yeon-Ki Kim
Pre-mRNA splicing further increases protein diversity acquired through evolution. The underlying driving forces for this phenomenon are unknown, especially in terms of gene expression. A rice alternatively spliced transcript detection microarray (ASDM) and RNA sequencing (RNA-Seq) were applied to differentiate the transcriptome of 4 representative organs of Oryza sativa L. cv. Ilmi: leaves, roots, 1-cm-stage panicles and young seeds at 21 days after pollination. Comparison of data obtained by microarray and RNA-Seq showed a bell-shaped distribution and a co-lineation for highly expressed genes...
October 17, 2017: Molecules and Cells
https://www.readbyqxmd.com/read/29046739/high-quality-draft-genomic-sequence-of-paenibacillus-ferrarius-cy1-t-with-the-potential-to-bioremediate-cd-cr-and-se-contamination
#3
Jingxin Li, Wei Guo, Manman Shi, Yajing Cao, Gejiao Wang
Paenibacillus ferrarius CY1(T) (= KCTC 33419(T) = CCTCC AB2013369(T)) is a Gram-positive, aerobic, endospore-forming, motile and rod-shaped bacterium isolated from iron mineral soil. This bacterium reduces sulfate (SO4(2-)) to S(2-), which reacts with Cd(II) to generate precipitated CdS. It also reduces the toxic chromate [Cr(VI)] and selenite [Se(VI)] to the less bioavailable chromite [Cr(III)] and selenium (Se(0)), respectively. Thus, strain CY1(T) has the potential to bioremediate Cd, Cr and Se contamination, which is the main reason for the interest in sequencing its genome...
2017: Standards in Genomic Sciences
https://www.readbyqxmd.com/read/29046300/manganese-promotes-intracellular-accumulation-of-aqp2-via-modulating-f-actin-polymerization-and-reduces-urinary-concentration-in-mice
#4
Lei Lei, Ming Huang, Limin Su, Dongping Xie, Fahmy A Mamuya, Onju Ham, Kenji Tsuji, Teodor G Păunescu, Baoxue Yang, Hua A Jenny Lu
Aquaporin-2 (AQP2) is a water channel protein expressed in principal cells (PCs) of the kidney collecting ducts (CDs) and plays a critical role in mediating water reabsorption and urine concentration. AQP2 undergoes both regulated trafficking mediated by vasopressin (VP) and constitutive recycling, which is independent of VP. For both pathways, actin cytoskeletal dynamics is a key determinant of AQP2 trafficking. We report here that manganese chloride (MnCl2) is a novel and potent regulator of AQP2 trafficking in cultured cells and in the kidney...
October 18, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/29045738/the-proposed-role-of-ultrasound-in-the-management-of-giant-cell-arteritis-in-routine-clinical-practice
#5
Sara Monti, Alberto Floris, Cristina B Ponte, Wolfgang A Schmidt, Andreas P Diamantopoulos, Claudio Pereira, Sophie Vaggers, Raashid A Luqmani
Objective: To develop and explore a protocol for using colour duplex sonography (CDS) in the routine care of GCA. Methods: We tested CDS of temporal arteries and axillary arteries (AXs) on consecutive patients with suspected or established GCA, between July 2014 and September 2016. Results: We assessed 293 patients [age 72 (10), female/male 196/97], of whom 118 had clinically confirmed GCA. Seventy-three percent of patients had already received high-dose glucocorticoids (GCs) for 17 (33) days...
October 16, 2017: Rheumatology
https://www.readbyqxmd.com/read/29045651/clinical-decision-support-alert-malfunctions-analysis-and-empirically-derived-taxonomy
#6
Adam Wright, Angela Ai, Joan Ash, Jane F Wiesen, Thu-Trang T Hickman, Skye Aaron, Dustin McEvoy, Shane Borkowsky, Pavithra I Dissanayake, Peter Embi, William Galanter, Jeremy Harper, Steve Z Kassakian, Rachel Ramoni, Richard Schreiber, Anwar Sirajuddin, David W Bates, Dean F Sittig
Objective: To develop an empirically derived taxonomy of clinical decision support (CDS) alert malfunctions. Materials and Methods: We identified CDS alert malfunctions using a mix of qualitative and quantitative methods: (1) site visits with interviews of chief medical informatics officers, CDS developers, clinical leaders, and CDS end users; (2) surveys of chief medical informatics officers; (3) analysis of CDS firing rates; and (4) analysis of CDS overrides. We used a multi-round, manual, iterative card sort to develop a multi-axial, empirically derived taxonomy of CDS malfunctions...
October 16, 2017: Journal of the American Medical Informatics Association: JAMIA
https://www.readbyqxmd.com/read/29045167/identification-of-a-novel-de-novo-heterozygous-deletion-in-the-sox10-gene-in-waardenburg-syndrome-type-ii-using-next-generation-sequencing
#7
Haonan Li, Peng Jin, Qian Hao, Wei Zhu, Xia Chen, Ping Wang
OBJECTIVES: Waardenburg syndrome (WS) is a rare autosomal dominant disorder associated with pigmentation abnormalities and sensorineural hearing loss. In this study, we investigated the genetic cause of WSII in a patient and evaluated the reliability of the targeted next-generation exome sequencing method for the genetic diagnosis of WS. METHODS: Clinical evaluations were conducted on the patient and targeted next-generation sequencing (NGS) was used to identify the candidate genes responsible for WSII...
October 18, 2017: Genetic Testing and Molecular Biomarkers
https://www.readbyqxmd.com/read/29045166/driver-injury-in-near-and-far-side-impacts-update-on-the-effect-of-front-passenger-belt-use
#8
Chantal S Parenteau, David C Viano
PURPOSE: This is a study that updates earlier research on the influence of a front passenger on the risk for severe driver injury in near-side and far-side impacts. It includes the effects of belt use by the driver and passenger, identifies body regions involved in driver injury and identifies the sources for severe, driver head injury. METHODS: 1997-2015 NASS-CDS data was used to investigate the risk for MAIS 4+F driver injury in near-side and far-side impacts by front-passenger belt use and as a sole occupant in the driver seat...
October 18, 2017: Traffic Injury Prevention
https://www.readbyqxmd.com/read/29045035/nitrogen-doped-carbon-dots-as-a-fluorescent-probe-for-the-highly-sensitive-detection-of-ag-and-cell-imaging
#9
Junjian Li, Gancheng Zuo, Xihao Pan, Wei Wei, Xiaoliang Qi, Ting Su, Wei Dong
An easy hydrothermal synthesis strategy was applied to synthesize green-yellow emitting nitrogen-doped carbon dots (N-CDs) using 1,2-diaminobenzene as the carbon source, and dicyandiamide as the dopant. The nitrogen-doped CDs resulted in improvement in the electronic characteristics and surface chemical activities. N-CDs exhibited bright fluorescence emission and could response to Ag(+) selectively and sensitively. Other ions produced nearly no interference. A N-CDs based fluorescent probe was then applied to sensitively determine Ag(+) with a detection limit of 5 × 10(-8)  mol/L...
October 18, 2017: Luminescence: the Journal of Biological and Chemical Luminescence
https://www.readbyqxmd.com/read/29044943/fast-lithium-ion-transportation-in-crystalline-polymer-electrolytes
#10
Xiao-Bin Fu, Guang Yang, Jin-Ze Wu, Jianchen Wang, Qun Chen, Yefeng Yao
Fast lithium-ion transportation is found in the crystalline polymer electrolytes, α-CD-PEOn/Li+ (n = 12, 40), prepared by self-assembly of α-cyclodextrin (CD), polyethylene oxide (PEO) and Li+ salts. A detailed solid-state NMR study combined with X-ray diffraction technique reveals the unique structural features of the samples, that is, a) the tunnel structure formed by the assembled CDs, providing the ordered long-range pathway for Li+ ion transportation; b) the all-trans conformational sequence of the PEO chains in the tunnels, attenuating significantly the coordination between Li+ and the EO segments...
October 16, 2017: Chemphyschem: a European Journal of Chemical Physics and Physical Chemistry
https://www.readbyqxmd.com/read/29044942/highly-luminescent-nitrogen-doped-carbon-dots-for-simultaneous-determination-of-chlortetracycline-and-sulfasalazine
#11
Zhengwei Zhang, Jianqiu Chen, Yu Duan, Weixia Liu, Dan Li, Zhengyu Yan, Ke Yang
Here, we have presented a green and facile strategy to fabricate nitrogen-doped carbon dots (N-CDs) and their applications for determination of chlortetracycline (CTC) and sulfasalazine (SSZ). The fluorescent N-CDs, prepared by one-step hydrothermal reaction of citric acid and l-arginine, manifested numerous excellent features containing strong blue fluorescence, good water-solubility, narrow size distribution, and a high fluorescence quantum yield (QY) of 38.8%. Based on the fluorescence quenching effects, the as-synthesized N-CDs as a fluorescent nanosensor exhibited superior analytical performances for quantifying CTC and SSZ...
October 18, 2017: Luminescence: the Journal of Biological and Chemical Luminescence
https://www.readbyqxmd.com/read/29044857/direct-synthesis-of-polymer-nanotubes-via-aqueous-dispersion-polymerization-of-cyclodextrin-styrene-complex
#12
Xi Chen, Lei Liu, Meng Huo, Min Zeng, Liao Peng, Anchao Feng, Xiaosong Wang, Jinying Yuan
We report a one-step synthesis of nanotubes by RAFT dispersion polymerization of cyclodextrin/styrene (CD/St) complexes directly in water. The resulted amphiphilic PEG-b-PS diblock copolymers self-assemble in situ into nanoparticles with various morphologies. Spheres, worms, lamellae, and nanotubes were controllably obtained. Because of the complexation, the swelling degree of polystyrene (PS) blocks by free St is limited, resulting limited mobility of PS chains. Consequently, kinetically trapped lamellae and nanotubes were obtained instead of spherical vesicles...
October 17, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/29042312/extracellular-expression-of-the-ht1-neurotoxin-from-the-australian-paralysis-tick-in-two-saccharomyces-cerevisiae-strains
#13
Thomas Karbanowicz, Eric Dover, Xinyi Mu, Ala Tabor, Manuel Rodriguez-Valle
Surface display libraries (SDL) have predominantly been utilized for the screening of peptides, and single-chain variable IgG fragments, however, the use of SDL for the expression and purification of proteins is gaining interest. Prokaryote SDL express proteins within the periplasm, limiting the application of common screening techniques, such as ELISA and FACS, to assess the viability of recombinant toxin before purification. A previous attempt to express a functional holocyclotoxin-1 (HT1) from the Australian paralysis tick (Ixodes holocyclus) using a prokaryotic system was unsuccessful...
October 14, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/29041151/sb2s3-thickness-dependent-lateral-photovoltaic-effect-and-time-response-observed-in-glass-fto-cds-sb2s3-au-structure
#14
Shuang Qiao, Jihong Liu, ZhiQiang Li, ShuFang Wang, GuangSheng Fu
As an interesting one dimensional ribbon material, Sb2S3 has recently attracted much attention in recent years due to its exciting optical properties. However, Sb2S3-based photovoltaic or photoelectronic devices are still in research, and there are many things unknown to us and need to be well studied. In this work, the glass/FTO/CdS/Sb2S3/Au structures were successfully prepared with different Sb2S3 thicknesses, and the lateral photovoltaic effect (LPE) was firstly observed in this structure, suggesting its great potential in position sensitivity detectors (PSD)...
August 7, 2017: Optics Express
https://www.readbyqxmd.com/read/29040834/effect-of-oil-structure-on-cyclodextrin-based-pickering-emulsions-for-bupivacaine-topical-application
#15
Jiun-Wen Hu, Mei-Wen Yen, Ae-June Wang, I-Ming Chu
Cyclodextrins (CDs) coupled with oils forms an insoluble inclusion complex that is able to adsorb to the interface between oils and aqueous phases; it thereby stabilizes Pickering emulsions. Three types of oils (triglyceride, linear chain oil, and ring-structured oil) were chosen to work with CDs to prepare bupivacaine (BPC)-encapsulated Pickering emulsions. We also investigated the relationship between oils and CDs; as well as their influences on stability, drug-releasing capability and skin permeability. Particle sizes and microstructures were determined by dynamic light scattering and scanning electron microscopy, respectively...
October 4, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/29039949/highly-efficient-red-emitting-carbon-dots-with-gram-scale-yield-for-bioimaging
#16
Hui Ding, Ji-Shi Wei, Ning Zhong, Qingyu Gao, Huan-Ming Xiong
Carbon dots (CDs) are a new class of photoluminescent (PL), biocompatible, environment friendly and low-cost carbon nanomaterials. Synthesis of highly efficient red-emitting carbon dots (R-CDs) on a gram scale is a great challenge at present, which heavily restricts the wide applications of CDs in the bioimaging field. Herein, R-CDs with a high quantum yield (QY) of 53% are produced on a gram scale by heating a formamide solution of citric acid and ethylenediamine. The as-prepared R-CDs have an average size of 4...
October 17, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/29037483/new-labor-management-guidelines-and-changes-in-cesarean-delivery-patterns
#17
Joshua I Rosenbloom, Molly J Stout, Methodius G Tuuli, Candice L Woolfolk, Julia D López, George A Macones, Alison G Cahill
BACKGROUND: In 2010 the Consortium on Safe Labor published labor curves. It was proposed that the rate of cesarean delivery (CD) could be lowered by avoiding the diagnosis of arrest of dilation before 6 cm. However, there is little information on the uptake of the guidelines and on changes in CD rates that may have occurred. OBJECTIVE: To test the hypotheses that: 1) among patients laboring at term, rates of arrest of dilation disorders have decreased leading to a decrease in the rate of CD; 2) in the second stage, pushing duration prior to diagnosis of arrest of descent has increased also leading to reduction in the rate of CD for this indication...
October 13, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29036778/electronic-clinical-decision-support-tool-for-the-evaluation-of-cardiovascular-risk-in-general-practice-a-pilot-study
#18
Jason Chiang, John Furler, Douglas Boyle, Malcolm Clark, Jo-Anne Manski-Nankervis
BACKGROUND: Cardiovascular disease (CVD) is a major cause of death in Australia. Electronic medical record (EMR)-based clinical decision support (CDS) tools have the potential to support absolute CVD risk (ACVDR) evaluation and management. The objective of this study was to test the acceptability and feasibility of the Treat to Target CVD (T3CVD), an EMR-based CDS tool, for the evaluation of ACVDR in general practice. METHODS: Five general practitioners (GPs) piloted the T3CVD tool in their clinic...
October 2017: Australian Family Physician
https://www.readbyqxmd.com/read/29035565/bottom-up-tri-gate-transistors-and-sub-microsecond-photodetectors-from-guided-cds-nanowalls
#19
Jinyou Xu, Eitan Oksenberg, Ronit Popovitz-Biro, Katya Rechav, Ernesto Joselevich
Tri-gate transistors offer better performance than planar transistors by exerting additional gate control over a channel from two lateral sides of semiconductor nanowalls (or "fins"). Here we report the bottom-up assembly of aligned CdS nanowalls by a simultaneous combination of horizontal catalytic vapor-liquid-solid growth and vertical facet-selective noncatalytic vapor-solid growth, and their parallel integration into tri-gate transistors and photodetectors at wafer scale (cm(2)) without post-growth transfer or alignment steps...
October 16, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29034685/improving-performance-on-preventive-health-quality-measures-using-clinical-decision-support-to-capture-care-done-elsewhere-and-patient-exceptions
#20
Michael E Bowen, Deepa Bhat, Jason Fish, Brett Moran, Temple Howell-Stampley, Lynne Kirk, Stephen D Persell, Ethan A Halm
Preventive services required for performance measurement often are completed in outside health systems and not captured in electronic medical records (EMRs). A before-after study was conducted to examine the ability of clinical decision support (CDS) to improve performance on preventive quality measures, capture clinician-reported services completed elsewhere, and patient/medical exceptions and to describe their impact on quality measurement. CDS improved performance on colorectal cancer screening, osteoporosis screening, and pneumococcal vaccination measures ( P < ...
October 1, 2017: American Journal of Medical Quality: the Official Journal of the American College of Medical Quality
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