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https://www.readbyqxmd.com/read/28933841/supramolecular-self-assembly-and-dual-switch-vapochromic-vapoluminescent-and-resistive-memory-behaviors-of-amphiphilic-platinum-ii-complexes
#1
Yongguang Li, Ling Chen, Yeye Ai, Eugene Yau-Hin Hong, Alan Kwun-Wa Chan, Vivian Wing-Wah Yam
A series of amphiphilic platinum(II) complexes with tridentate N-donor ligands has been synthesized and characterized. Different supramolecular architectures are constructed using the amphiphilic molecules as the building blocks through the formation of Pt···Pt and π-π stacking interactions in aqueous media. The aggregation-deaggregation-aggregation self-assembly behavior together with obvious spectroscopic changes could be fine-tuned by the addition of THF in aqueous media. More interestingly, one of the complexes is found to show fast response and high selectivity toward alcohol and water vapors with good reversibility, leading to drastic color and luminescence changes, and hence unique dual switching behavior, with the water molecules readily displaced by the alcohol vapor...
September 21, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28932926/donor-indocyanine-green-clearance-test-predicts-graft-quality-and-early-graft-prognosis-after-liver-transplantation
#2
Yunhua Tang, Ming Han, Maogen Chen, Xiaoping Wang, Fei Ji, Qiang Zhao, Zhiheng Zhang, Weiqiang Ju, Dongping Wang, Zhiyong Guo, Xiaoshun He
BACKGROUND: Transplantation centers have given much attention to donor availability. However, no reliable quantitative methods have been employed to accurately assess graft quality before transplantation. Here, we report that the indocyanine green (ICG) clearance test is a valuable index for liver grafts. METHODS: We performed the ICG clearance test on 90 brain-dead donors within 6 h before organ procurement between March 2015 and November 2016. We also analyzed the relationship between graft liver function and early graft survival after liver transplantation (LT)...
September 20, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28928722/fermentative-bacteria-influence-the-competition-between-denitrifiers-and-dnra-bacteria
#3
Eveline M van den Berg, Marina P Elisário, J Gijs Kuenen, Robbert Kleerebezem, Mark C M van Loosdrecht
Denitrification and dissimilatory reduction to ammonium (DNRA) are competing nitrate-reduction processes that entail important biogeochemical consequences for nitrogen retention/removal in natural and man-made ecosystems. The nature of the available carbon source and electron donor have been suggested to play an important role on the outcome of this microbial competition. In this study, the influence of lactate as fermentable carbon source on the competition for nitrate was investigated for varying ratios of lactate and nitrate in the influent (Lac/N ratio)...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28924426/changes-in-the-whole-blood-donor-population-in-south-west-germany-2010-versus-2016
#4
Michael Müller-Steinhardt, Christian Weidmann, Harald Klüter
BACKGROUND: In the recent past, the discrepancy between blood supply and future demand may have been overestimated. As medical progress develops rapidly, it will be essential to monitor ongoing demographic changes in the donor population regularly and to re-evaluate retention and recruiting strategies. The aim of the current study was to compare first-time donor (FTD) characteristics and their return rates. We therefore compared whole blood (WB) donations in total and the annual donation frequencies in 2010 and in 2015/2016...
August 2017: Transfusion Medicine and Hemotherapy
https://www.readbyqxmd.com/read/28871572/early-complications-after-living-donor-nephrectomy-analysis-of-the-swiss-organ-living-donor-health-registry
#5
Felix Burkhalter, Uyen Huynh-Do, Karine Hadaya, Maurice Matter, Thomas Müller, Isabelle Binet, Christa Nolte, Juerg Steiger
BACKGROUND: We evaluated the prospectively collected data about the incidence of early peri- and postoperative complications, and potential risk factors for adverse outcomes after living kidney donation in Switzerland. METHODS: Peri- and postoperative events were prospectively recorded on a questionnaire by the local transplant teams of all Swiss transplant centres and evaluated by the Swiss Organ Living Donor Health Registry. Complications were classified according to the Clavien grading system...
September 5, 2017: Swiss Medical Weekly
https://www.readbyqxmd.com/read/28861453/data-on-the-effect-of-oral-feeding-of-arachidonic-acid-or-docosahexanoic-acid-on-haematopoiesis-in-mice
#6
Kedar Limbkar, Ankita Dhenge, Dipesh D Jadhav, Hirekodathakallu V Thulasiram, Vaijayanti Kale, Lalita Limaye
Stem cells have peculiar property to self-renew and differentiate. It is important to control their fate in safe and effective ways for their therapeutic use. The mediators of essential polyunsaturated fatty acids (PUFAs) namely Arachidonic acid (AA) and Docosahexanoic acid (DHA) are known to play a role in haematopoiesis via various metabolic pathways [1]. However the direct effect of purified AA or DHA on haematopoiesis has not been well investigated yet. We have reported that oral administration of PUFAs enhanced haematopoiesis in mice [2]...
October 2017: Data in Brief
https://www.readbyqxmd.com/read/28841284/metallosupramolecular-architectures-obtained-from-poly-n-heterocyclic-carbene-ligands
#7
Narayan Sinha, F Ekkehardt Hahn
Over the past two decades, self-assembly of supramolecular architectures has become a field of intensive research due to the wide range of applications for the resulting assemblies in various fields such as molecular encapsulation, supramolecular catalysis, drug delivery, metallopharmaceuticals, chemical and photochemical sensing, and light-emitting materials. For these purposes, a large number of coordination-driven metallacycles and metallacages featuring different sizes and shapes have been prepared and investigated...
August 25, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28837527/prestained-and-preloaded-dmek-grafts-an-evaluation-of-tissue-quality-and-stain-retention
#8
Dorian A Zeidenweber, Khoa D Tran, Christopher S Sales, Stephen W Wehrer, Michael D Straiko, Mark A Terry
PURPOSE: To examine endothelial cell damage and stain retention of prestained preloaded Descemet membrane endothelial keratoplasty (DMEK) grafts. METHODS: DMEK grafts were stained with trypan blue or left unstained before loading into a Straiko modified Jones tube. A protocol to stain preloaded grafts inside the modified Jones tube and resulting cell loss was also examined. Endothelial cell loss was determined by vital dye staining after 3 days of cold storage and compared between the 3 groups...
August 23, 2017: Cornea
https://www.readbyqxmd.com/read/28830361/identification-and-analysis-of-alternative-splicing-events-in-phaseolus-vulgaris-and-glycine-max
#9
Luis P Iñiguez, Mario Ramírez, William B Barbazuk, Georgina Hernández
BACKGROUND: The vast diversification of proteins in eukaryotic cells has been related with multiple transcript isoforms from a single gene that result in alternative splicing (AS) of primary transcripts. Analysis of RNA sequencing data from expressed sequence tags and next generation RNA sequencing has been crucial for AS identification and genome-wide AS studies. For the identification of AS events from the related legume species Phaseolus vulgaris and Glycine max, 157 and 88 publicly available RNA-seq libraries, respectively, were analyzed...
August 22, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28810505/denitrification-of-the-anaerobic-membrane-bioreactor-anmbr-effluent-with-alternative-electron-donors-in-domestic-wastewater-treatment
#10
L Pelaz, A Gómez, G Garralón, A Letona, M Fdz-Polanco
A fixed film bioreactor for the denitrification of the effluent from an anaerobic membrane bioreactor (AnMBR) treating domestic wastewater was designed, built and investigated. After anaerobic treatment, the wastewater usually has a low C/N ratio (∼1.3), and a remaining chemical oxygen demand of around 117mg O2/L, which is not enough to make conventional heterotrophic denitrification possible. That effluent also holds methane and sulfide dissolved and oversaturated after leaving the AnMBR. This paper demonstrates the feasibility of using these reduced compounds as electron donors in order to remove 80mg NOx(-)-N/L at 18°C and 2h of hydraulic retention time...
July 1, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28803004/-just-blood-donors-a-study-on-the-multi-affiliations-of-blood-donors
#11
Sara Alfieri, Maura Pozzi, Elena Marta, Vincenzo Saturni, Giovanni Aresi, Paolo Guiddi
BACKGROUND: The present work proposes to explore a phenomenon well known in the world of blood donation, but little explored by literature: multi-affiliations. By that term, in this paper we mean blood donors' engagement in multiple associations of various natures (donation, recreation, sports, etc.) simultaneously. The first objective proposes to explore the phenomenon of multi-affiliations in descriptive terms; the second is to look into the differences-in terms of motivations, family-work-volunteerism reconciliation, life satisfaction, and membership satisfaction-between those who "only" carry out blood donation activity and those who instead participate in multiple associative realities concurrently...
July 25, 2017: Transfusion and Apheresis Science
https://www.readbyqxmd.com/read/28801756/segregation-distortion-and-genome-wide-digenic-interactions-affect-transmission-of-introgressed-chromatin-from-wild-cotton-species
#12
Rahul Chandnani, Baohua Wang, Xavier Draye, Lisa K Rainville, Susan Auckland, Zhimin Zhuang, Edward L Lubbers, O Lloyd May, Peng W Chee, Andrew H Paterson
This study reports transmission genetics of chromosomal segments into Gossypium hirsutum from its most distant euploid relative, Gossypium mustelinum . Mutilocus interactions and structural rearrangements affect introgression and segregation of donor chromatin. Wild allotetraploid relatives of cotton are a rich source of genetic diversity that can be used in genetic improvement, but linkage drag and non-Mendelian transmission genetics are prevalent in interspecific crosses. These problems necessitate knowledge of transmission patterns of chromatin from wild donor species in cultivated recipient species...
August 11, 2017: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/28791455/fat-injection-a-systematic-review-of-injection-volumes-by-facial-subunit
#13
REVIEW
Shirley Shue, David E Kurlander, Bahman Guyuron
BACKGROUND: Fat grafting to the aging face has become an integral component of esthetic surgery. However, the amount of fat to inject to each area of the face is not standardized and has been based mainly on the surgeon's experience. The purpose of this study was to perform a systematic review of injected fat volume to different facial zones. METHODS: A systematic review of the literature was performed through a MEDLINE search using keywords "facial," "fat grafting," "lipofilling," "Coleman technique," "autologous fat transfer," and "structural fat grafting...
August 8, 2017: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/28783593/amplification-of-near-infrared-fluorescence-in-semiconducting-polymer-nanoprobe-for-grasping-the-behaviors-of-systemically-administered-endothelial-cells-in-ischemia-treatment
#14
Duo Mao, Jie Liu, Shenglu Ji, Ting Wang, Yu Hu, Donghui Zheng, Renqiang Yang, Deling Kong, Dan Ding
To date, there have been few studies on using fluorescent cell trackers for non-invasively monitoring the in vivo fate of systemically administered cells. This is because only a relatively small number of cells can reach the disease site post systemic infusion, and thus achieving ideal in vivo cell tracking requires that the fluorescent cell trackers should hold combined merits of ultrahigh near-infrared (NIR) fluorescence, negligible interference on cell behavior and function, excellent retention within cells, as well as accurate long-term cell tracking ability...
August 2, 2017: Biomaterials
https://www.readbyqxmd.com/read/28759219/synthesis-and-characterization-of-luminescent-cyclometalated-platinum-ii-complexes-with-tunable-emissive-colors-and-studies-of-their-application-in-organic-memories-and-organic-light-emitting-devices
#15
Alan Kwun-Wa Chan, Maggie Ng, Yi-Chun Wong, Mei-Yee Chan, Wing-Tak Wong, Vivian Wing-Wah Yam
A series of luminescent cyclometalated N^C^N [N^C^N = 1,3-bis(N-alkylbenzimidazol-2'-yl)benzene]platinum(II) alkynyl and carbazolyl complexes has been prepared. The structure of one platinum(II) carbazolyl complex has been characterized by X-ray crystallography. The corresponding electrochemical and photophysical properties have been explored and analyzed. The N^C^N platinum(II) complexes displayed rich luminescence in degassed dichloromethane solution, with their emission profiles dependent on the coordinated alkynyl and carbazolyl ligands...
July 31, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28726896/cycloaddition-reactions-of-enoldiazo-compounds
#16
REVIEW
Qing-Qing Cheng, Yongming Deng, Marianne Lankelma, Michael P Doyle
Enoldiazo esters and amides have proven to be versatile reagents for cycloaddition reactions that allow highly efficient construction of various carbocycles and heterocycles. Their versatility is exemplified by (1) [2+n]-cycloadditions (n = 3, 4) by the enol silyl ether units of enoldiazo compounds with retention of the diazo functionality to furnish α-cyclic-α-diazo compounds that are themselves subject to further transformations of the diazo functional group; (2) [3+n]-cycloadditions (n = 1-5) by metallo-enolcarbenes formed by catalytic dinitrogen extrusion from enoldiazo compounds; (3) [2+n]-cycloadditions (n = 3, 4) by donor-acceptor cyclopropenes generated in situ from enoldiazo compounds that produce cyclopropane-fused ring systems...
August 29, 2017: Chemical Society Reviews
https://www.readbyqxmd.com/read/28726521/polymer-donors-of-nitric-oxide-improve-the-treatment-of-experimental-solid-tumours-with-nanosized-polymer-therapeutics
#17
Milada Šírová, Veronika Horková, Tomáš Etrych, Petr Chytil, Blanka Říhová, Martin Studenovský
Polymer carriers based on N-(2-hydroxypropyl)methacrylamide (HPMA) copolymers with incorporated organic nitrates as nitric oxide (NO) donors were designed with the aim to localize NO generation in solid tumours, thus highly increasing the enhanced permeability and retention (EPR) effect. The NO donors were coupled to the polymer carrier either through a stable bond or through a hydrolytically degradable, pH sensitive, bond. In vivo, the co-administration of the polymer NO donor and HPMA copolymer-bound cytotoxic drug (doxorubicin; Dox) resulted in an improvement in the treatment of murine EL4 T-cell lymphoma...
July 20, 2017: Journal of Drug Targeting
https://www.readbyqxmd.com/read/28720788/preservative-solution-that-stabilizes-erythrocyte-morphology-and-leukocyte-viability-under-ambient-conditions
#18
Rebecca D Sandlin, Keith H K Wong, Leo Boneschansker, Thomas R Carey, Kathleen L Miller, Gregory Rose, Daniel A Haber, Shyamala Maheswaran, Daniel Irimia, Shannon L Stott, Mehmet Toner
The deterioration of whole blood ex vivo represents a logistical hurdle in clinical and research settings. Here, a cocktail preservative is described that stabilizes leukocyte viability and erythrocyte morphology in whole blood under ambient storage. Neutrophil biostabilization was explored using a sophisticated microfluidic assay to examine the effectiveness of caspase inhibition to stabilize purified neutrophils. Following 72 h ambient storage, neutrophils remained fully functional to migrate towards chemical cues and maintained their ability to undergo NETosis after stimulation...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28702909/lignocellulosic-biowastes-as-carrier-material-and-slow-release-electron-donor-for-sulphidogenesis-of-wastewater-in-an-inverse-fluidized-bed-bioreactor
#19
Luis C Reyes-Alvarado, Álvaro Camarillo-Gamboa, Elena Rustrian, Eldon R Rene, Giovanni Esposito, Piet N L Lens, Eric Houbron
Industrial wastewaters containing high concentrations of sulphate, such as those generated by mining, metallurgical and mineral processing industries, require electron donor for biological sulfidogenesis. In this study, five types of lignocellulosic biowastes were characterized as potential low-cost slow release electron donors for application in a continuously operated sulphidogenic inverse fluidized bed bioreactor (IFBB). Among them, natural scourer and cork were selected due to their high composition of volatile solids (VS), viz...
July 12, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28687348/design-and-approach-of-the-living-organ-video-educated-donors-loved-program-to-promote-living-kidney-donation-in-african-americans
#20
John C Sieverdes, Matthew Price, Kenneth J Ruggiero, Prabhakar K Baliga, Kenneth D Chavin, Brenda Brunner-Jackson, Sachin Patel, Frank A Treiber
PURPOSE: To describe the rationale, methodology, design, and interventional approach of a mobile health education program designed for African Americans with end stage renal disease (ESRD) to increase knowledge and self-efficacy to approach others about their need for a living donor kidney transplant (LDKT). METHODS: The Living Organ Video Educated Donors (LOVED) program is a theory-guided iterative designed, mixed methods study incorporating three phases: 1) a formative evaluation using focus groups to develop program content and approach; 2) a 2-month proof of concept trial (n=27) to primarily investigate acceptability, tolerability and investigate increases of LDKT knowledge and self-efficacy; and 3) a 6-month, 2-arm, 60-person feasibility randomized control trial (RCT) to primarily investigate increases in LDKT knowledge and self-efficacy, and secondarily, to increase the number of living donor inquiries, medical evaluations, and LDKTs...
July 5, 2017: Contemporary Clinical Trials
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