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https://www.readbyqxmd.com/read/29674604/does-ischemia-free-liver-procurement-under-normothermic-perfusion-benefit-the-outcome-of-liver-transplantation
#1
Qiang Zhao, Shanzhou Huang, Dongping Wang, Zhiheng Zhang, Linwei Wu, Lu Yang, Yi Ma, Fei Ji, Yunhua Tang, Linhe Wang, Zebin Zhu, Yanling Zhu, Wei Xiong, Maogen Chen, Ming Han, Jian Zhou, Anbin Hu, Guodong Wang, Xingyuan Jiao, Xiaofeng Zhu, Weiqiang Ju, Zhiyong Guo, Xiaoshun He
BACKGROUND In contrast to conventional static cold preservation, normothermic machine perfusion (NMP) provides a beneficial alternative preservation of donor livers. However, the liver still suffered cold ischemic injury before attaching to the perfusion device. MATERIAL AND METHODS To prevent cold ischemic injury during procurement, we describe a novel procedure called ischemia-free liver procurement (IFLP) under NMP. Two liver grafts were procured from brain death donor under NMP and underwent 2-hour ex vivo NMP followed by 3 and 6 hours of static cold preservation...
April 20, 2018: Annals of Transplantation: Quarterly of the Polish Transplantation Society
https://www.readbyqxmd.com/read/29670500/the-psychometric-properties-of-the-smartphone-application-based-addiction-scale-sabas
#2
Sándor Csibi, Mark D Griffiths, Brian Cook, Zsolt Demetrovics, Attila Szabo
The goal of the study was to validate the English version of the Smartphone Application-Based Addiction Scale (SABAS; Csibi et al. 2016), which is a short and easy-to-use tool for screening the risk of smartphone application-based addiction. Another aim was to identify the most frequently used smartphone applications and their perceived importance by the participants. Data were collected online from 240 English-speaking volunteers, aged 18 to 69 years. The instruments used were the SABAS, the Nomophobia Questionnaire (NMP-Q), the Brief Sensation Seeking Scale (BSSS), the Deprivation Sensation Scale (DSS), and the Patient Health Questionnaire (PHQ-9)...
2018: International Journal of Mental Health and Addiction
https://www.readbyqxmd.com/read/29649043/permeation-enhancers-for-intratympanically-applied-drugs-studied-using-fluorescent-dexamethasone-as-a-marker
#3
Wei Li, Jared J Hartsock, Chunfu Dai, Alec N Salt
HYPOTHESIS: Entry of locally applied drugs into the inner ear can be enhanced by chemical manipulations. BACKGROUND: Perilymph drug concentrations achieved by intratympanic applications are well below the applied concentration due to limited entry through the round window (RW) membrane and stapes. Chemical manipulations to increase entry permeability could increase the effectiveness of drug therapy with local applications. METHODS: Dexamethasone-fluorescein (F-dex) was used as an entry marker...
April 11, 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29644030/proof-of-concept-liver-splitting-during-normothermic-machine-perfusion
#4
Barney T F Stephenson, Glenn K Bonney, Richard W Laing, Ricky H Bhogal, Francesca Marcon, Desley A H Neil, M Thamara P R Perera, Simon C Afford, Hynek Mergental, Darius F Mirza
Introduction: Despite utilizing extended criteria donors, there remains a shortage of livers for transplantation. No data exists on splitting donor livers with concurrent NMP-L. Methods: A liver recovered from a donor after circulatory death was subjected to NMP-L using a red cell based fluid. During NMP-L, a 'classical' left lateral + right trisegmentectomy split was performed using an integrated bipolar/ultrasonic device. After splitting, blood flow was confirmed using Doppler ultrasound in each lobe...
March 2018: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/29629996/normothermic-liver-preservation-current-status-and-future-directions
#5
Danielle Detelich, James F Markmann
PURPOSE OF REVIEW: Normothermic machine perfusion (NMP) is an emerging technology for liver preservation. Early clinical results demonstrate beneficial effects in reconditioning high-risk grafts. This review discusses the role of normothermic perfusion as a tool to assess graft viability and as a platform for graft intervention and modification. RECENT FINDINGS: The potential benefits of NMP extend far beyond organ reconditioning. Recent pilot studies have identified clinically relevant viability criteria, which now require validation in large randomized control trials prior to implementation...
April 7, 2018: Current Opinion in Organ Transplantation
https://www.readbyqxmd.com/read/29629107/palladium-catalyzed-regiodivergent-hydroaminocarbonylation-of-alkenes-to-primary-amides-with-ammonium-chloride
#6
Bao Gao, Guoying Zhang, Xibing Zhou, Hanmin Huang
Palladium-catalyzed hydroaminocarbonylation of alkenes for the synthesis of primary amides has long been an elusive aim. Here, we report an efficient catalytic system which enables inexpensive NH4 Cl to be utilized as a practical alternative to gaseous ammonia for the palladium-catalyzed alkene-hydroaminocarbonylation reaction. Through appropriate choice of the palladium precursors and ligands, either branched or linear primary amides can be obtained in good yields with good to excellent regioselectivities...
January 14, 2018: Chemical Science
https://www.readbyqxmd.com/read/29624838/the-n-methylpyrrolidone-nmp-effect-in-iron-catalyzed-cross-coupling-with-simple-ferric-salts-and-memgbr
#7
Salvador B Munoz Iii, Stephanie L Daifuku, Jeffrey D Sears, Tessa M Baker, Stephanie H Carpenter, William W Brennessel, Michael Neidig
The use of N-methylpyrrolidone (NMP) as a co-solvent in ferric salt catalyzed cross-coupling reactions is crucial for achieving the highly selective, preparative scale formation of cross-coupled product in reactions utilizing alkyl Grignard reagents. Despite the critical importance of NMP, the molecular level effect of NMP on in-situ formed and reactive iron species that enables effective catalysis remains undefined. Herein, we report the isolation and characterization of a novel trimethyliron(II) ferrate species, [Mg(NMP)₆][FeMe₃]₂ (1), which forms as the major iron species in-situ in reactions of Fe(acac)₃ and MeMgBr under catalytically relevant conditions where NMP is employed as a co-solvent...
April 6, 2018: Angewandte Chemie
https://www.readbyqxmd.com/read/29617951/non-mumps-viral-parotitis-during-the-2014-2015-influenza-season-in-the-united-states
#8
Lina I Elbadawi, Pamela Talley, Melissa A Rolfes, Alexander J Millman, Erik Reisdorf, Natalie A Kramer, John R Barnes, Lenee Blanton, Jaime Christensen, Stefanie Cole, Tonya Danz, John J Dreisig, Rebecca Garten, Thomas Haupt, Beth M Isaac, Mary Anne Jackson, Anna Kocharian, Daniel Leifer, Karen Martin, Lisa McHugh, Rebecca J McNall, Jennifer Palm, Kay W Radford, Sara Robinson, Jennifer B Rosen, Senthilkumar K Sakthivel, Peter Shult, Anna K Strain, George Turabelidze, Lori A Webber, Meghan Pearce Weinberg, David E Wentworth, Brett L Whitaker, Lyn Finelli, Michael A Jhung, Ruth Lynfield, Jeffrey P Davis
Background: During the 2014-2015 US influenza season, 320 cases of non-mumps parotitis (NMP) among residents of 21 states were reported to the Centers for Disease Control and Prevention (CDC). We conducted an epidemiologic and laboratory investigation to determine viral etiologies and clinical features of NMP during this unusually large occurrence. Methods: NMP was defined as acute parotitis or other salivary gland swelling of >2 days duration in a person with a mumps- negative laboratory result...
March 30, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29614800/cross-linked-poly-vinylidene-fluoride-co-hexafluoropropene-pvdf-co-hfp-gel-polymer-electrolyte-for-flexible-li-ion-battery-integrated-with-organic-light-emitting-diode-oled
#9
Ilhwan Kim, Bong Sung Kim, Seunghoon Nam, Hoo-Jeong Lee, Ho Kyoon Chung, Sung Min Cho, Thi Hoai Thuong Luu, Seungmin Hyun, Chiwon Kang
Here, we fabricate poly(vinylidene fluoride- co -hexafluoropropene) (PVDF- co -HFP) by electrospinning for a gel polymer electrolyte (GPE) for use in flexible Li-ion batteries (LIBs). As a solvent, we use N -methyl-2-pyrrolidone (NMP), which helps produce the cross-linked morphology of PVDF- co -HFP separator, owing to its low volatility. The cross-linked PVDF- co -HFP separator shows an uptake rate higher than that of a commercialized polypropylene (PP) separator. Moreover, the PVDF- co -HFP separator shows an ionic conductivity of 2...
April 2, 2018: Materials
https://www.readbyqxmd.com/read/29600863/palladium-catalyzed-hydrocarbonylative-c-n-coupling-of-alkenes-with-amides
#10
Xibing Zhou, Guoying Zhang, Bao Gao, Hanmin Huang
An efficient palladium-catalyzed hydrocarbonylative C-N coupling of alkenes with amides has been developed. The reaction was performed via hydrocarbonylation of alkenes, followed by acyl metathesis with amides. Both intermolecular and intramolecular reactions proceed smoothly to give either branched or linear amides in high turnover number (3500) with NH4 Cl or NMP·HCl as a proton source under the palladium catalysis. This reaction offers a catalytic convenient approach to deuterated amides when inexpensive NMP·DCl served as a deuterium source...
March 30, 2018: Organic Letters
https://www.readbyqxmd.com/read/29577766/cost-of-prescription-drug-related-morbidity-and-mortality
#11
Jonathan H Watanabe, Terry McInnis, Jan D Hirsch
BACKGROUND: Public attention and recent US Congressional activity has intensified focus on escalating medication prices. However, the actual cost of medication use extends beyond the up-front cost of purchasing medicines. It also encompasses the additional medical costs of morbidity and mortality resulting from nonoptimized medication regimens, including medication nonadherence. OBJECTIVES: Applying the most current nationally representative data sources, our goal was to estimate the cost of prescription drug-related morbidity and mortality in the United States...
March 1, 2018: Annals of Pharmacotherapy
https://www.readbyqxmd.com/read/29567935/normothermic-machine-perfusion-versus-cold-storage-of-liver-in-pig-model-a-meta-analysis
#12
Shiqi Bian, Zhijun Zhu, Liying Sun, Lin Wei, Wei Qu, Zhigui Zeng, Ying Liu
BACKGROUND Normothermic machine perfusion (NMP) is a novel strategy used for organ preservation. We aimed to determine the overall efficacy of NMP for liver preservation versus traditional static cold storage (CS). MATERIAL AND METHODS We performed a meta-analysis of the literature to evaluate the efficacy of NMP in experimental pig models of liver preservation. We use the standardized mean difference and 95% confidence intervals (CI) to calculate statistics and used the random effects model for the combined analysis of the results...
March 23, 2018: Annals of Transplantation: Quarterly of the Polish Transplantation Society
https://www.readbyqxmd.com/read/29564207/normothermic-machine-preservation-of-the-liver-state-of-the-art
#13
REVIEW
Carlo D L Ceresa, David Nasralla, Wayel Jassem
Purpose of Review: This review aims to introduce the concept of normothermic machine perfusion (NMP) and its role in liver transplantation. By discussing results from recent clinical studies and highlighting the potential opportunities provided by this technology, we aim to provide a greater insight into NMP and the role it can play to enhance liver transplantation. Recent Findings: NMP has recently been shown to be both safe and feasible in liver transplantation and has also demonstrated its superiority to traditional cold storage in terms of early biochemical liver function...
2018: Current Transplantation Reports
https://www.readbyqxmd.com/read/29557463/cobalt-ii-liquid-metal-salts-for-high-current-density-electrodeposition-of-cobalt
#14
Jeroen Sniekers, Pieter Geysens, Tom Vander Hoogerstraete, Luc Van Meervelt, Jan Fransaer, Koen Binnemans
Cobalt(ii)-containing ionic liquids were synthesized using N,N-dimethylformamide, N-methylpyrrolidone (NMP), dimethylsulfoxide (DMSO), N,N-dimethylacetamide (DMAc), pyridine-N-oxide (py-O), 1,10-phenanthroline (phen), ethylenediamine (en) and dimethylimidazolidinone (DMI) as ligands. The weakly coordinating bis(trifluoromethylsulfonyl)imide (Tf2N-) was used as a counter anion. Several compounds had a melting temperature below 100 °C, and the compound [Co(DMAc)6][Tf2N]2 was liquid at room temperature, with a viscosity of only 18 mPa s at 80 °C...
March 20, 2018: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/29545891/n-methyl-pyrrolidone-promotes-ankle-fracture-healing-by-inhibiting-inflammation-via-suppression-of-the-mitogen-activated-protein-kinase-signaling-pathway
#15
Jun Bian, Dan Cao, Jie Shen, Bo Jiang, Dan Chen, Lanzheng Bian
N-methyl pyrrolidone (NMP), a small bioactive molecule, has the potential to stimulate bone formation and inhibit osteoclast differentiation. The aim of the present study was to investigate the effect of NMP on the inflammatory response and underlying molecular mechanisms in MG-63 cells. The mRNA and protein expression of cytokines from peripheral blood in children with or without ankle fracture were determined by reverse transcription-quantitative polymerase chain reaction (RT-qPCR) and ELISA, respectively...
April 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29537282/catalyst-free-and-solvent-controlled-reductive-coupling-of-activated-vinyl-triflates-with-chlorotrimethylsilane-by-magnesium-metal-and-its-synthetic-application
#16
Hirofumi Maekawa, Katsuaki Noda, Keisuke Kuramochi, Tianyuan Zhang
Vinylsilanes were directly prepared from the corresponding vinyl triflates under magnesium-promoted reductive conditions in THF with no transition metal catalyst, and gem-bis-silylated compounds were obtained in NMP. Investigation of the redox potential of starting materials and products suggested that reductive coupling reactions of vinyl triflates might be controlled by the reduction potential. A variety of gem-bis-silylated compounds and 3-silyladipic acid esters were easily synthesized in only two steps from vinyl triflates in high yields...
March 14, 2018: Organic Letters
https://www.readbyqxmd.com/read/29534585/urinary-fluorescence-analysis-in-diagnosis-of-bladder-cancer
#17
B Kollarik, M Zvarik, P Bujdak, P Weibl, L Rybar, L Sikurova, L Hunakova
Early diagnosis of bladder cancer is crucial for improvement of cancer specific survival and recurrence rate. We analyzed the possible role of fluorescence urine analysis in bladder cancer diagnosis. The cohort consisted of 20 healthy controls, 40 patients with hematuria and 75 patients with hematuria and histologically proven bladder tumor. Synchronous fluores- cence spectra with a 70 nm wavelength difference were recorded for (1:1-1:128) urine dilutions. Concentration matrices of synchronous spectra (CMSS) were used to classify samples into tested groups...
2018: Neoplasma
https://www.readbyqxmd.com/read/29530545/biomimetic-synthesis-and-evaluation-of-histidine-derivative-templated-chiral-mesoporous-silica-for-improved-oral-delivery-of-the-poorly-water-soluble-drug-nimodipine
#18
Heran Li, Haiting Li, Chen Wei, Jia Ke, Jing Li, Lu Xu, Hongzhuo Liu, Yangyang, Sanming Li, Mingshi Yang
In this study, spherical shaped chiral mesoporous silica nanoparticles (CMS) was biomimetic synthesized using histidine derivatives (C16 -L-histidine) as template via the sol-gel reaction and employed as poorly water-soluble drug nimodipine (NMP) carrier. Characteristics of CMS and its application as drug carrier were intensively investigated and compared with MCM41. Then NMP was respectively loaded into CMS and MCM41 with the drug: carrier weight ratio of 2:1. Structural features of NMP before and after drug loading were systemically characterized...
March 9, 2018: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29524787/relationship-between-severity-of-periodontitis-and-masseter-muscle-activity-during-waking-and-sleeping-hours
#19
Seiya Kato, Daisuke Ekuni, Shigehisa Kawakami, Acing Habibie Mude, Manabu Morita, Shogo Minagi
OBJECTIVE: This study was conducted to investigate whether the masseter muscle activity shows any specific pattern in relation to the severity of periodontitis. DESIGN: Sixteen subjects with no or mild periodontitis (NMP group) and 15 subjects with moderate or severe periodontitis (MSP group) were enrolled. Plasma IgG antibody titer was examined using Porphyromonas gingivalis as a bacterial antigen. Surface electromyography (EMG) of the masseter muscles was continuously recorded using an ambulatory surface EMG recording device while patients were awake and asleep...
March 1, 2018: Archives of Oral Biology
https://www.readbyqxmd.com/read/29510555/assessment-of-blend-pvdf-membranes-and-the-effect-of-polymer-concentration-and-blend-composition
#20
Imtiaz Ali, Omar A Bamaga, Lassaad Gzara, M Bassyouni, M H Abdel-Aziz, M F Soliman, Enrico Drioli, Mohammed Albeirutty
In this work, PVDF homopolymer was blended with PVDF-co-HFP copolymer and studied in terms of morphology, porosity, pore size, hydrophobicity, permeability, and mechanical properties. Different solvents, namely N-Methyl-2 pyrrolidone (NMP), Tetrahydrofuran (THF), and Dimethylformamide (DMF) solvents, were used to fabricate blended PVDF flat sheet membranes without the introduction of any pore forming agent, through a non-solvent induced phase separation (NIPS) technique. Furthermore, the performance of the fabricated membranes was investigated for pressure and thermal driven applications...
March 5, 2018: Membranes
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