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https://www.readbyqxmd.com/read/28051363/effects-of-hydraulic-retention-time-and-s2o3-2-no3-ratio-on-thiosulfate-driven-autotrophic-denitrification-for-nitrate-removal-from-micro-polluted-surface-water
#1
Zheng Wang, Xiang Fei, Shengbing He, Jungchen Huang, Weili Zhou
This study was carried out to investigate the possibility of a thiosulfate-driven autotrophic denitrification for nitrate-N removal from micro-polluted surface water. The aim was to study the effects of S2O3(2-)/NO3(-) ratio (S/N molar ratio) and hydraulic retention time (HRT) on the autotrophic denitrification performance. Besides, utilization efficiencies of S2O3(2-)-S along the biofilter and the restart-up of the bioreactor were also investigated. Autotrophic denitrification using thiosulfate as an electron donor for treating micro-polluted surface water without the addition of external alkalinity proved to be feasible and the biofilter could be readied in two weeks...
January 4, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28049741/integrating-omics-and-alternative-splicing-reveals-insights-into-grape-response-to-high-temperature
#2
Jianfu Jiang, Xinna Liu, Guotian Liu, Chonghuai Liu, Shaohua Li, Lijun Wang
Heat stress is one of the primary abiotic stresses that limit crop production. Grape is a cultivated fruit with high economic value throughout the world, with its growth and development often influenced by high temperature. Alternative splicing (AS) is a widespread phenomenon increasing transcriptome and proteome diversity. We conducted high temperature treatments (35oC, 40oC and 45oC) on grapevines (Vitis vinifera), and assessed transcriptomic (especially AS) and proteomic changes in leaves. We found that nearly 70% of the genes were alternatively spliced under high temperature...
January 3, 2017: Plant Physiology
https://www.readbyqxmd.com/read/28041753/modified-reversed-superficial-peroneal-artery-flap-in-the-reconstruction-of-ankle-and-foot-defects-following-severe-burns-or-trauma
#3
Shi-Ji Li, Hao Cheng, Xu Fang, Jian-Yang Xu, Fei Wang, Sheng Liu, Xu-Lin Chen, Xiong-Wen Lv
OBJECTIVE: Challenges persist in the reconstruction of the ankle and the foot with exposed tendons, joints, and bones as a result of severe burns and trauma. In flap elevation involving the sensitive superficial nerve, the local nerve was always sacrificed to obtain an anesthetic donor site; however, such a procedure introduced the possibility of painful neuromas. In this study, we present a desired clinical application of a modified reversed superficial peroneal artery flap, in which the superficial peroneal nerve is preserved...
December 29, 2016: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/28033465/diketopyrrolopyrrole-triphenylamine-organic-nanoparticles-as-multifunctional-reagents-for-photoacoustic-imaging-guided-photodynamic-photothermal-synergistic-tumor-therapy
#4
Yu Cai, Pingping Liang, Qianyun Tang, Xiaoyan Yang, Weili Si, Wei Huang, Qi Zhang, Xiaochen Dong
Herein, a donor-acceptor-donor (D-A-D) structured small molecule (DPP-TPA) is designed and synthesized for photoacoustic imaging (PAI) guided photodynamic/photothermal synergistic therapy. In the diketopyrrolopyrrole (DPP) molecule, a thiophene group is contained to increase the intersystem crossing (ISC) ability through the heavy atom effect. Simultaneously, triphenylamine (TPA) is introduced for bathochromic shift absorption as well as charge transport capacity enhancement. After formation of nanoparticles (NPs, ∼76 nm) by reprecipitation, the absorption of DPP-TPA NPs further displays obvious bathochromic-shift with the maximum absorption peak at 660 nm...
January 3, 2017: ACS Nano
https://www.readbyqxmd.com/read/28027576/human-macrophage-ferroportin-biology-and-the-basis-for-the-ferroportin-disease
#5
Manuela Sabelli, Giuliana Montosi, Cinzia Garuti, Angela Caleffi, Stefania Oliveto, Stefano Biffo, Antonello Pietrangelo
: Ferroportin (FPN1) is the sole iron-exporter in mammals but its cell-specific function and regulation are still elusive. This study aims at studying FPN1 expression in human macrophages, the cells that mostly contribute on a daily basis to plasma iron turnover and are central in the pathogenesis of the disease due to lack-of-function FPN1 mutations, the Ferroportin Disease (FD). We characterized FPN1 protein expression and traffic by confocal microscopy, western blot, gel-filtration and immunoprecipitation studies in macrophages from blood donors and patients with either FPN1 p...
December 27, 2016: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28024356/ultrasound-triggered-nitric-oxide-release-platform-based-on-energy-transformation-for-targeted-inhibition-of-pancreatic-tumor
#6
Kun Zhang, Huixiong Xu, Xiaoqing Jia, Yu Chen, Ming Ma, Liping Sun, Hangrong Chen
Inspired by considerable application potential in various diseases, nitric oxide (NO) has gained increasing attention. Nevertheless, current NO release scaffolds suffer from some inevitable drawbacks, for example, high toxicity for NO donor byproducts, poor specificity, shallow penetration depth, and strong ionizing irradiation for triggers, all of which remain obstacles to clinical application. Herein, an ultrasound-triggered NO on-demand release system is constructed using natural l-arginine as NO donor and local ultrasound as trigger...
December 27, 2016: ACS Nano
https://www.readbyqxmd.com/read/28011613/spinal-arachnoiditis-as-a-complication-of-cryptococcal-meningoencephalitis-in-non-hiv-previously-healthy-adults
#7
Anil A Panackal, Mika Komori, Peter Kosa, Omar Khan, Dima A Hammoud, Lindsey B Rosen, Sarah K Browne, Yen-Chih Lin, Elena Romm, Charu Ramaprasad, Bettina C Fries, John E Bennett, Bibiana Bielekova, Peter R Williamson
BACKGROUND: Cryptococcus can cause meningoencephalitis (CM) among previously healthy non-HIV adults. Spinal arachnoiditis is under-recognized, since diagnosis is difficult with concomitant central nervous system (CNS) pathology. METHODS: We describe 6 cases of spinal arachnoiditis among 26 consecutively recruited CM patients with normal CD4 counts who achieved microbiologic control. We performed detailed neurological exams, cerebrospinal fluid (CSF) immunophenotyping and biomarker analysis before and after adjunctive immunomodulatory intervention with high dose pulse corticosteroids, affording causal inference into pathophysiology...
November 10, 2016: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28009814/a-novel-pathogenic-brca1-splicing-variant-produces-partial-intron-retention-in-the-mature-messenger-rna
#8
Maria Valeria Esposito, Marcella Nunziato, Flavio Starnone, Antonella Telese, Alessandra Calabrese, Giuseppe D'Aiuto, Pietro Pucci, Massimiliano D'Aiuto, Francisco Baralle, Valeria D'Argenio, Francesco Salvatore
About 10% of all breast cancers arise from hereditary mutations that increase the risk of breast and ovarian cancers; and about 25% of these are associated with the BRCA1 or BRCA2 genes. The identification of BRCA1/BRCA2 mutations can enable physicians to better tailor the clinical management of patients; and to initiate preventive measures in healthy carriers. The pathophysiological significance of newly identified variants poses challenges for genetic counseling. We characterized a new BRCA1 variant discovered in a breast cancer patient during BRCA1/2 screening by next-generation sequencing...
December 21, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27989855/formulation-and-evaluation-of-chitosan-polyethylene-oxide-nanofibers-loaded-with-metronidazole-for-local-infections
#9
Špela Zupančič, Tanja Potrč, Saša Baumgartner, Petra Kocbek, Julijana Kristl
Nanofibers combined with an antimicrobial represent a powerful strategy for treatment of various infections. Local infections usually have a low fluid volume available for drug release, whereas pharmacopoeian dissolution tests include a much larger receptor volume. Therefore, the development of novel drug-release methods that more closely resemble the in-vivo conditions is necessary. We first developed novel biocompatible and biodegradable chitosan/polyethylene oxide nanofibers using environmentally friendly electrospinning of aqueous polymer solutions, with the inclusion of the antimicrobial metronidazole...
October 29, 2016: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/27984397/donor-screening-experience-for-fecal-microbiota-transplantation-in-patients-with-recurrent-c-difficile-infection
#10
Raseen Tariq, Renee Weatherly, Patricia Kammer, Darrell S Pardi, Sahil Khanna
GOALS: To evaluate our experience with stool donor recruitment, screening, retention, and donor perception for fecal microbiota transplantation (FMT). BACKGROUND: Multiply recurrent Clostridium difficile infection is being increasingly managed with FMT from donor stools. However, donor selection and recruitment is challenging due to lack of standard evidence-based guidelines, donor exclusion criteria, frequency of screening and donor commitment. METHODS: Data on donors screened using institutional guidelines with history, blood and stool testing and their perspectives on donation were analyzed...
December 14, 2016: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/27979752/applying-self-determination-theory-to-the-blood-donation-context-the-blood-donor-competence-autonomy-and-relatedness-enhancement-blood-donor-care-trial
#11
Christopher R France, Janis L France, Bruce W Carlson, Victoria Frye, Louisa Duffy, Debra A Kessler, Mark Rebosa, Beth H Shaz
The Blood Donor Competency, Autonomy, and Relatedness Enhancement (Blood Donor CARE) project was designed as a practical application of self-determination theory to encourage retention of first-time donors. Self-determination theory proposes that people are more likely to persist with behaviors that are internally-motivated, and that externally-motivated behavior can evolve and become internalized given the appropriate socio-environmental conditions. According to self-determination theory, motivation to engage in blood donation may become increasingly self-determined if the behavior satisfies fundamental human needs for competence (a sense of self-efficacy to achieve specific goals), autonomy (a sense of volitional control over one's behavior), and relatedness (a sense of connection to a larger group)...
December 12, 2016: Contemporary Clinical Trials
https://www.readbyqxmd.com/read/27974233/increased-deposition-of-glycosaminoglycans-and-altered-structure-of-heparan-sulfate-in-idiopathic-pulmonary-fibrosis
#12
Gunilla Westergren-Thorsson, Ulf Hedström, Annika Nybom, Emil Tykesson, Emma Åhrman, Marie Hornfelt, Marco Maccarana, Toin H van Kuppevelt, Göran Dellgren, Marie Wildt, Xiao-Hong Zhou, Leif Eriksson, Leif Bjermer, Oskar Hallgren
Idiopathic pulmonary fibrosis (IPF) is characterized by aberrant deposition of extracellular matrix (ECM) constituents, including glycosaminoglycans (GAGs), that may play a role in remodelling processes by influencing critical mediators such as growth factors. We hypothesize that GAGs may be altered in IPF and that this contribute to create a pro-fibrotic environment. The aim of this study was therefore to examine the fine structure of heparan sulfate (HS), chondroitin/dermatan sulfate (CS/DS) and hyaluronan (HA) in lung samples from IPF patients and from control subjects...
December 11, 2016: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/27960059/organic-ion-pair-charge-transfer-ipct-nanoparticles-synthesis-and-photoinduced-electrochromism
#13
Hiroshi Yao, Tomoki Enseki
We report fabrication of photoinduced-electrochromic (or photochromic) organic nanoparticles that can be regarded as a new class of photoswitchable nanomaterials. Ion association between dicationic benzyl viologen (BzV(2+)) and tetraphenylborate anion (TPB(-)) in water produces organic ion-pair charge-transfer-type (IPCT) nanoparticles with a mean diameter of 15-20 nm. Electrostatic binding of BzV(2+) with TPB(-) results in the prominent appearance of a new broad absorption band at 400-550 nm, which can be assign to the CT transition between these species...
December 21, 2016: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/27943371/a-large-national-study-of-ferritin-testing-in-canadian-blood-donors
#14
Mindy Goldman, Samra Uzicanin, Lori Osmond, Vito Scalia, Sheila F O'Brien
BACKGROUND: We assessed risk groups for iron deficiency and the feasibility and efficacy of ferritin testing in a large blood center. STUDY DESIGN AND METHODS: Donors were informed of possible testing in the predonation pamphlet. Plasma ferritin was measured on retention samples (n = 12,595) from representative clinics. Low-ferritin donors (<25 µg/L) were sent a letter and information sheet and not called for 6 months. Ferritin testing was repeated on 25% of donors; donor return rate and frequency were monitored...
December 9, 2016: Transfusion
https://www.readbyqxmd.com/read/27920905/an-unprecedented-binuclear-cadmium-di-thio-carbamate-adduct-bis-%C3%AE-2-n-2-hydroxy-eth-yl-n-iso-propyl-carbamodi-thio-ato-%C3%AE%C2%BA-3-s-s-s-bis-n-2-hydroxy-eth-yl-n-iso-propyl-carbamodi-thio-ato-%C3%AE%C2%BA-2-s-s-3-1e-e-2-pyridin-3-yl-methyl-idene-hydrazin-1-yl-idene-meth-yl
#15
Hadi D Arman, Pavel Poplaukhin, Edward R T Tiekink
The asymmetric unit in the title binuclear compound, [Cd(C6H12NOS2)2(C12H10N4)]2·2H2O, comprises a Cd(II) atom, two di-thio-carbamate (dtc) anions, a monodentate 3-pyridine-aldazine ligand and a lattice water mol-ecule. The binuclear mol-ecule is constructed by the application of inversion symmetry. One dtc ligand simultaneously chelates one cadmium atom and bridges the centrosymmetric mate, while the other dtc ligand is chelating only. This leads to a centrosymmetric [Cd(dtc)2]2 core to which are appended two 3-pyridine-aldazine ligands...
September 1, 2016: Acta Crystallographica. Section E, Crystallographic Communications
https://www.readbyqxmd.com/read/27893349/platelet-leucocyte-and-red-cell-derived-microparticles-in-stored-whole-blood-with-and-without-leucofiltration-with-and-without-ionising-radiation
#16
Shunnichi Saito, Kenneth E Nollet, Alain M Ngoma, Takako Ono, Hitoshi Ohto
BACKGROUND: Storage lesion, including microparticle formation, has been partially characterised in whole blood, but not in all combinations of pre-storage leucofiltration and/or irradiation. MATERIALS AND METHODS: Single-donor whole blood products were processed into four subunits: with and without leucofiltration, with and without X-irradiation (25 Gy). Platelet-, leucocyte-, and erythrocyte-derived microparticles and free haemoglobin were measured periodically throughout 42 days of storage...
November 7, 2016: Blood Transfusion, Trasfusione del Sangue
https://www.readbyqxmd.com/read/27881604/cd11d-%C3%AE-2-integrin-expression-on-human-nk-b-and-%C3%AE-%C3%AE-t-cells
#17
Gabrielle M Siegers, Christy R Barreira, Lynne-Marie Postovit, Gregory A Dekaban
The CD11d integrin is expressed on the cell surface of leukocytes that belong to the myeloid lineage, but its expression on lymphocytes remains unexplored. To test the hypothesis that CD11d is expressed on lymphocyte subsets, we employed a multicolor flow cytometry panel to identify CD11d expression on B, NK, CD4(+) and CD8(+) αβ T cells (αβTc), and γδ T cells (γδTc) in human PBMC samples. CD11d was highly expressed on NK cells, B cells, and γδTc, but not αβTc. CD11d expression was higher on freshly isolated γδTc compared with αβTc from healthy donors, yet both inter- and intradonor variability was evident...
November 23, 2016: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/27859480/phospholipid-bilayer-affinities-and-solvation-characteristics-by-electrokinetic-chromatography-with-a-nanodisc-pseudostationary-phase
#18
William M Penny, Harmen B Steele, J B Alexander Ross, Christopher P Palmer
Phospholipid bilayer nanodiscs composed of 1,2-dimyristoyl-sn-glycero-3-phosphocholine and synthetic maleic acid-styrene copolymer belts have been introduced as a pseudostationary phase (PSP) in electrokinetic chromatography and demonstrated good performance. The nanodiscs provide a suitable migration range and high theoretical plate counts. Using this nanodisc pseudostationary phase, the affinity of the bilayer structure for probe solutes was determined and characterized. Good correlation is observed between retention factors and octanol water partition coefficients for particular categories of solutes, but the general correlation is weak primarily because the nanodiscs show stronger affinity than octanol for hydrogen bond donors...
November 14, 2016: Electrophoresis
https://www.readbyqxmd.com/read/27855327/evaluation-of-anaerobic-sludge-volume-for-improving-azo-dye-decolorization-in-a-hybrid-anaerobic-reactor-with-built-in-bioelectrochemical-system
#19
Min-Hua Cui, Dan Cui, Lei Gao, Ai-Jie Wang, Hao-Yi Cheng
A hybrid anaerobic reactor with built-in bioelectrochemical system (BES) has been verified for efficiently treating mixed azo dye wastewater, yet still facing many challenges, such as uncertain reactor construction and insufficient electron donors. In this study, an up-flow hybrid anaerobic reactor with built-in BES was developed for acid orange 7 (AO7) containing wastewater treatment. Cathode and real domestic wastewater both served as electron donor for driving azo dye decolorization. The decolorization efficiency (DE) of AO7 (200 mg/L) in the hybrid reactor was 80...
February 2017: Chemosphere
https://www.readbyqxmd.com/read/27809289/pretransplant-levels-of-crp-and-interleukin-6-family-cytokines-effects-on-outcome-after-allogeneic-stem-cell-transplantation
#20
Tor Henrik Tvedt, Stein Atle Lie, Håkon Reikvam, Kristin Paulsen Rye, Roald Lindås, Tobias Gedde-Dahl, Aymen Bushra Ahmed, Øystein Bruserud
Several pretransplant factors, including CRP (C-reactive protein) levels, reflect the risk of complications after allogeneic stem cell transplantation. IL-6 induces CRP increase, and we therefore investigated the effects of pretransplant IL-6, soluble IL-6 receptors, IL-6 family cytokines and CRP serum levels on outcome for 100 consecutive allotransplant recipients. All patients had related donors, none had active infections and 99 patients were in complete remission before conditioning. The incidence of acute graft versus host disease (aGVHD) requiring treatment was 40%, survival at Day +100 82%, and overall survival 48%...
November 1, 2016: International Journal of Molecular Sciences
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