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https://www.readbyqxmd.com/read/28933758/the-effect-of-season-on-the-metabolic-profile-of-the-european-clam-ruditapes-decussatus-as-studied-by-%C3%A2-h-nmr-spectroscopy
#1
Violetta Aru, Søren Balling Engelsen, Francesco Savorani, Jacopo Culurgioni, Giorgia Sarais, Giulia Atzori, Serenella Cabiddu, Flaminia Cesare Marincola
In this study, the metabolome of Ruditapes decussatus, an economically and ecologically important marine bivalve species widely distributed in the Mediterranean region, was characterized by using proton Nuclear Magnetic Resonance (¹H-NMR) spectroscopy. Significant seasonal variations in the content of carbohydrates and free amino acids were observed. The relative amounts of alanine and glycine were found to exhibit the same seasonal pattern as the temperature and salinity at the harvesting site. Several putative sex-specific biomarkers were also discovered...
July 26, 2017: Metabolites
https://www.readbyqxmd.com/read/28933184/crossing-anatomic-barriers-transplantation-of-a-kidney-with-5-arteries-duplication-of-the-pyelocalyceal-system-and-double-ureter
#2
Piotr J Bachul, Czesław Osuch, Ea-Sle Chang, Alina Bętkowska-Prokop, Artur Pasternak, Mirosław Szura, Andrzej Matyja, Jerzy A Walocha
During the time of organ harvest, it is crucial for the kidney procurement team to consider significant vascular anatomical variations. Multiple renal arteries are not uncommon, and unintentional injury can result in an irreversibly damaged kidney graft that needs to be discarded. We present a kidney graft with 5 renal arteries and a single vein that was successfully procured and implanted with good graft function at discharge and at 4-yr follow-up. According to the literature, additional renal arteries can be found in about 33% of kidneys...
January 1, 2017: Cell Transplantation
https://www.readbyqxmd.com/read/28930962/attenuation-of-hemorrhage-associated-lung-injury-by-adjuvant-treatment-with-c23-an-oligopeptide-derived-from-cold-inducible-rna-binding-protein
#3
Fangming Zhang, Weng-Lang Yang, Max Brenner, Ping Wang
BACKGROUND: Hemorrhagic shock (HS) is an important cause of mortality. HS is associated with an elevated incidence of acute lung injury and acute respiratory distress syndrome, significantly contributing to HS morbidity and mortality. Cold-inducible RNA-binding protein (CIRP) is released into the circulation during HS and can cause lung injury. C23 is a CIRP-derived oligopeptide that binds with high affinity to the CIRP receptor and inhibits CIRP-induced phagocyte secretion of TNF-α...
October 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28929624/structural-mimics-of-phenyl-pyridine-ppy-substituted-phosphorescent-cyclometalated-homo-and-heteroleptic-iridium-iii-complexes-for-organic-light-emitting-diodes-an-overview
#4
REVIEW
Aravind Babu Kajjam, Sivakumar Vaidyanathan
Today organic light emitting diodes are a topic of significant academic and industrial research interest. OLED technology is used in commercially available displays, and efforts have been directed to improve this technology. Design and synthesis of phosphorescent based transition metals are capable of harvesting both singlet and triplet excitons and achieve 100 % internal quantum efficiency is an active area of research. Among all the transition metals, iridium is considered a prime candidate for OLEDs due to its prominent photophysical characteristics...
September 20, 2017: Chemical Record: An Official Publication of the Chemical Society of Japan ... [et Al.]
https://www.readbyqxmd.com/read/28928761/hormonal-regulation-in-shade-avoidance
#5
REVIEW
Chuanwei Yang, Lin Li
At high vegetation density, shade-intolerant plants sense a reduction in the red (660 nm) to far-red (730 nm) light ratio (R/FR) in addition to a general reduction in light intensity. These light signals trigger a spectrum of morphological changes manifested by growth of stem-like tissue (hypocotyl, petiole, etc.) instead of harvestable organs (leaves, fruits, seeds, etc.)-namely, shade avoidance syndrome (SAS). Common phenotypical changes related to SAS are changes in leaf hyponasty, an increase in hypocotyl and internode elongation and extended petioles...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28928331/outcomes-according-to-body-mass-index-following-laparoscopic-surgery-in-patients-with-colorectal-cancer
#6
Han Deok Kwak, Jae Kyun Ju, Dong Woo Kang, Se-Jin Baek, Jung Myun Kwak, Jin Kim, Seon-Hahn Kim
PURPOSE: Body mass index (BMI) may not be appropriate for different populations. Therefore, the World Health Organization (WHO) suggested 25 kg/m2 as a measure of obesity for Asian populations. The purpose of this report was to compare the oncologic outcomes of laparoscopic colorectal resection with BMI classified from the WHO Asia-Pacific perspective. PATIENTS AND METHODS: All patients underwent laparoscopic colorectal resection from September 2006 to March 2015 at a tertiary referral hospital...
September 20, 2017: Journal of Minimal Access Surgery
https://www.readbyqxmd.com/read/28925783/laparoscopic-assisted-resection-for-advanced-colorectal-cancer-in-solid-organ-transplant-recipients
#7
Ze-Nan Xia, Rui Hou, Wei Zhu, Ru Yao, Zhao Lu, Hui-Zhong Qiu, Guo-Le Lin
AIM: To evaluate the feasibility, short- and long-term outcomes, and safety of laparoscopic resection for advanced colorectal cancer (CRC) in solid organ transplant recipients. METHODS: Between September 2001 and April 2016, five patients who underwent laparoscopic-assisted resection for CRC after solid organ transplantation were included in this study. Their clinical data were retrospectively analyzed with regard to patient demographics, immunosuppressive therapy, tumor characteristics, surgical outcomes, and follow-up data...
September 19, 2017: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
https://www.readbyqxmd.com/read/28925579/nutrient-and-acetate-amendment-leads-to-acetoclastic-methane-production-and-microbial-community-change-in-a-non-producing-australian-coal-well
#8
Michiel H In 't Zandt, Sabrina Beckmann, Ruud Rijkers, Mike S M Jetten, Mike Manefield, Cornelia U Welte
Coal mining is responsible for 11% of total anthropogenic methane emission thereby contributing considerably to climate change. Attempts to harvest coalbed methane for energy production are challenged by relatively low methane concentrations. In this study, we investigated whether nutrient and acetate amendment of a non-producing sub-bituminous coal well could transform the system to a methane source. We tracked cell counts, methane production, acetate concentration and geochemical parameters for 25 months in one amended and one unamended coal well in Australia...
September 19, 2017: Microbial Biotechnology
https://www.readbyqxmd.com/read/28923612/deceased-organ-donation-from-pediatric-donors-does-the-literature-really-help-us-implication-for-more-powerful-guidelines
#9
M Mojtabaee, F Sadegh Beigee, F Ghorbani
BACKGROUND: Brain-dead pediatric donors have always been the focus of attention because of the higher quality, utility, and possibility of their organ donation. However, donors under the age of 5 years always necessitate making more challenging management efforts, which are not clearly implied in most parts of the guidelines. METHODS: The data obtained from 79 brain-dead pediatric donors of the Organ Procurement Unit of Masih Daneshvari Hospital, Tehran, Iran, were assessed...
October 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28920937/resolving-ultrafast-exciton-migration-in-organic-solids-at-the-nanoscale
#10
Samuel B Penwell, Lucas D S Ginsberg, Rodrigo Noriega, Naomi S Ginsberg
Effectiveness of molecular-based light harvesting relies on transport of excitons to charge-transfer sites. Measuring exciton migration, however, has been challenging because of the mismatch between nanoscale migration lengths and the diffraction limit. Instead of using bulk substrate quenching methods, here we define quenching boundaries all-optically with sub-diffraction resolution, thus characterizing spatiotemporal exciton migration on its native nanometre and picosecond scales. By transforming stimulated emission depletion microscopy into a time-resolved ultrafast approach, we measure a 16-nm migration length in poly(2,5-di(hexyloxy)cyanoterephthalylidene) conjugated polymer films...
September 18, 2017: Nature Materials
https://www.readbyqxmd.com/read/28920010/exploring-step-by-step-assembly-of-nanoparticle-cytochrome-biohybrid-photoanodes
#11
Ee Taek Hwang, Katherine L Orchard, Daisuke Hojo, Joseph Beton, Colin W J Lockwood, Tadafumi Adschiri, Julea N Butt, Erwin Reisner, Lars J C Jeuken
Coupling light-harvesting semiconducting nanoparticles (NPs) with redox enzymes has been shown to create artificial photosynthetic systems that hold promise for the synthesis of solar fuels. High quantum yields require efficient electron transfer from the nanoparticle to the redox protein, a property that can be difficult to control. Here, we have compared binding and electron transfer between dye-sensitized TiO2 nanocrystals or CdS quantum dots and two decaheme cytochromes on photoanodes. The effect of NP surface chemistry was assessed by preparing NPs capped with amine or carboxylic acid functionalities...
August 2017: ChemElectroChem
https://www.readbyqxmd.com/read/28918321/extending-donor-size-in-d-a-%C3%AF-a-organic-dye-for-dye-sensitized-solar-cells-anti-aggregation-and-improving-electron-injection
#12
Yuan-Chun Hu, Wei-Lu Ding, Xing-Liang Peng, Ze-Sheng Li
We have theoretically designed two D-A-π-A dyes 3 and 4 based on the efficient references 1 and 2 by introducing an extra electron donor unit (D2). Via calculating the electronic structures of isolated dyes, we obtain that dyes 3 and 4 possess stronger light-harvesting efficiency imparted by the fluorescence energy transfer of D2 part, maintain comparable lifetime of excited states, and shorten the electron injection time significantly with regard to 1 and 2. Meanwhile, dye 3 positively shifts the edge of virtual states of TiO2 in a larger extent compared to its counterparts...
September 8, 2017: Journal of Molecular Graphics & Modelling
https://www.readbyqxmd.com/read/28918135/effects-of-addition-of-malic-or-citric-acids-on-fermentation-quality-and-chemical-characteristics-of-alfalfa-silage
#13
W C Ke, W R Ding, D M Xu, L M Ding, P Zhang, F D Li, X S Guo
We studied the effects on alfalfa preservation and chemical composition of the addition of different levels of malic acid and citric acid at ensiling as well as the utilization efficiency of these 2 organic acids after fermentation. Alfalfa was harvested at early bloom stage. After wilting to a dry matter content of approximately 40%, the alfalfa was chopped into 1- to 2-cm pieces for ensiling. Four levels (0, 0.1, 0.5, and 1% of fresh weight) of malic acid or citric acid were applied to chopped alfalfa at ensiling with 4 replicates for each treatment, and the treated alfalfa forages were ensiled for 60 d in vacuum-sealed polyethylene bags (dimensions: 200 mm × 300 mm) packed with 200 to 230 g of fresh alfalfa per mini silo and an initial density of 0...
September 13, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28918122/pre-harvest-uv-c-irradiation-triggers-vocs-accumulation-with-alteration-of-antioxidant-enzymes-and-phytohormones-in-strawberry-leaves
#14
Yanqun Xu, Zisheng Luo, Marie Thérèse Charles, Daniel Rolland, Dominique Roussel
Recent studies have highlighted the biological and physiological effects of pre-harvest ultraviolet (UV)-C treatment on growing plants. However, little is known about the involvement of volatile organic compounds (VOCs) and their response to this treatment. In this study, strawberry plants were exposed to three different doses of UV-C radiation for seven weeks (a low dose: 9.6kJm(-2); a medium dose: 15kJm(-2); and a high-dose: 29.4kJm(-2)). Changes in VOC profiles were investigated and an attempt was made to identify factors that may be involved in the regulation of these alterations...
September 8, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/28917710/molecular-identification-of-vermamoeba-vermiformis-from-freshwater-fish-in-lake-taal-philippines
#15
Giovanni D Milanez, Frederick R Masangkay, Rey C Thomas, Ma Olive Grace O Ordona, Gabriel Q Bernales, Vyanna Camille M Corpuz, Hannah Selina V Fortes, Charezze Margarette S Garcia, Larra Camille Nicolas, Veeranoot Nissapatorn
Free Living Amoebae (FLA) are considered ubiquitous. FLAs may infect various biological organisms which act as reservoir hosts. Infected freshwater fishes can pose a public health concern due to possible human consumption. This study aims to identify possible pathogenic FLAs present in freshwater fishes. Seventy five (75) Oreochromis niloticus were studied for the presence of FLAs. Fish organs were suspended in physiologic saline pelleted and cultured in non-nutrient agar (NNA) lawned with Escherichia coli and were incubated in 33 °C for 14 days...
September 13, 2017: Experimental Parasitology
https://www.readbyqxmd.com/read/28916558/potential-of-rice-stubble-as-a-reservoir-of-bradyrhizobial-inoculum-in-rice-legume-crop-rotation
#16
Pongdet Piromyou, Teerana Greetatorn, Kamonluck Teamtisong, Panlada Tittabutr, Nantakorn Boonkerd, Neung Teaumroong
Bradyrhizobium encompasses a variety of bacteria that can live in symbiotic and endophytic associations with leguminous and non-leguminous plants such as rice. Therefore, it can be expected that rice endophytic bradyrhizobia can be applied in the rice-legume crop rotation system. Some endophytic bradyrhizobial strains were isolated from rice (Oryza sativa L.) tissues. The rice biomass could be enhanced when supplying KNO3, NH4NO3, or urea with bradyrhizobial strain inoculation, especially strain SUTN9-2. In contrast, the strains which suppressed rice growth were photosynthetic bradyrhizobia and also found to produce nitric oxide (NO) in the rice root...
September 15, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28915003/the-evolution-of-dna-templated-synthesis-as-a-tool-for-materials-discovery
#17
Rachel K O'Reilly, Andrew J Turberfield, Thomas R Wilks
Precise control over reactivity and molecular structure is a fundamental goal of the chemical sciences. Billions of years of evolution by natural selection have resulted in chemical systems capable of information storage, self-replication, catalysis, capture and production of light, and even cognition. In all these cases, control over molecular structure is required to achieve a particular function: without structural control, function may be impaired, unpredictable, or impossible. The search for molecules with a desired function is often achieved by synthesizing a combinatorial library, which contains many or all possible combinations of a set of chemical building blocks (BBs), and then screening this library to identify "successful" structures...
September 15, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28914762/the-1-week-and-8-month-effects-of-a-ketogenic-diet-or-ketone-salt-supplementation-on-multi-organ-markers-of-oxidative-stress-and-mitochondrial-function-in-rats
#18
Wesley C Kephart, Petey W Mumford, Xuansong Mao, Matthew A Romero, Hayden W Hyatt, Yufeng Zhang, Christopher B Mobley, John C Quindry, Kaelin C Young, Darren T Beck, Jeffrey S Martin, Danielle J McCullough, Dominic P D'Agostino, Ryan P Lowery, Jacob M Wilson, Andreas N Kavazis, Michael D Roberts
We determined the short- and long-term effects of a ketogenic diet (KD) or ketone salt (KS) supplementation on multi-organ oxidative stress and mitochondrial markers. For short-term feedings, 4 month-old male rats were provided isocaloric amounts of KD (n = 10), standard chow (SC) (n = 10) or SC + KS (~1.2 g/day, n = 10). For long-term feedings, 4 month-old male rats were provided KD (n = 8), SC (n = 7) or SC + KS (n = 7) for 8 months and rotarod tested every 2 months. Blood, brain (whole cortex), liver and gastrocnemius muscle were harvested from all rats for biochemical analyses...
September 15, 2017: Nutrients
https://www.readbyqxmd.com/read/28902157/triarylborane-based-materials-for-oled-applications
#19
REVIEW
Gulsen Turkoglu, M Emin Cinar, Turan Ozturk
Multidisciplinary research on organic fluorescent molecules has been attracting great interest owing to their potential applications in biomedical and material sciences. In recent years, electron deficient systems have been increasingly incorporated into fluorescent materials. Triarylboranes with the empty p orbital of their boron centres are electron deficient and can be used as strong electron acceptors in conjugated organic fluorescent materials. Moreover, their applications in optoelectronic devices, energy harvesting materials and anion sensing, due to their natural Lewis acidity and remarkable solid-state fluorescence properties, have also been investigated...
September 13, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28899098/heterodimers-made-of-upconversion-nanoparticles-and-metal-organic-frameworks
#20
Yifan Li, Zhenghan Di, Jinghong Gao, Ping Cheng, Chunzhi Di, Ge Zhang, Bei Liu, Xinghua Shi, Lingdong Sun, Lele Li, Chun-Hua Yan
Creating nanoparticle dimers has attracted extensive interest. However, it still remains a great challenge to synthesize heterodimers with asymmetric compositions and synergistically enhanced functions. In this work, we report the synthesis of high quality heterodimers composed of porphyrinic nanoscale metal-organic frameworks (nMOF) and lanthanide-doped upconversion nanoparticles (UCNPs). Due to the dual optical properties inherited from individual nanoparticles and their interactions, absorption of low energy photons by the UCNPs is followed by energy transfer to the nMOFs, which then undergo activation of porphyrins to generate singlet oxygen...
September 12, 2017: Journal of the American Chemical Society
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