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https://www.readbyqxmd.com/read/28425699/synthesis-of-npn-coordinated-tantalum-alkyl-complexes-and-their-hydrogenolysis-isolation-of-a-terminal-tantalum-hydride-incorporating-a-doubly-cyclometalated-npn-scaffold
#1
Sonja Batke, Malte Sietzen, Hubert Wadepohl, Joachim Ballmann
The closely related benzylene-linked diaminophosphines PhP(CH2C6H4-o-NHPh)2 (AH2) and PhP(C6H4-o-CH2NHXyl)2 (BH2 with Xyl = 3,5-Me2C6H3) were employed for the synthesis of tantalum(V) alkyls, which were then studied with respect to hydrogenolysis. In the case of AH2, the tantalum trimethyl complex [Ta(A)Me3] (1) and the tantalum hydrocarbyl complex [Ta(A)(CH2SiMe3)(η(2)-EtC≡CEt)] (2) were prepared from the ligand's dilithium salt (A)Li2(diox). Upon hydrogenolysis of 1 and 2, the formation of methane and SiMe4, respectively, was observed, but well-defined tantalum hydrides could not be detected...
April 20, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28424836/-on-the-occasion-of-swen-malte-john-s-60th-birthday
#2
EDITORIAL
P J Frosch, C Skudlik, M P Schön
No abstract text is available yet for this article.
April 19, 2017: Der Hautarzt; Zeitschrift Für Dermatologie, Venerologie, und Verwandte Gebiete
https://www.readbyqxmd.com/read/28421369/immunophenotypic-profiles-for-distinguishing-orbital-mucosa-associated-lymphoid-tissue-lymphoma-from-benign-lymphoproliferative-tumors
#3
Shunichiro Ueda, Yoshihiko Usui, Takeshi Nagai, Daniel Diaz-Aguilar, Toshitaka Nagao, Hiroshi Goto
PURPOSE: To evaluate novel immunophenotypic profiles of patients with orbital lymphoproliferative tumors. METHODS: From 2006 to 2014, surgical biopsies from consecutive patients with newly diagnosed orbital mucosa-associated lymphoid tissue (MALT) lymphoma and IgG4-related ophthalmic disease (IgG4-ROD) were collected from Tokyo Medical University Hospital. A total of 44 tumors from 44 patients were analyzed, including 21 with orbital MALT lymphoma (11 men and 10 women, mean age 67...
April 18, 2017: Japanese Journal of Ophthalmology
https://www.readbyqxmd.com/read/28419110/cocoa-pulp-in-beer-production-applicability-and-fermentative-process-performance
#4
Cassiane da Silva Oliveira Nunes, Giovani Brandão Mafra de Carvalho, Marília Lordêlo Cardoso da Silva, Gervásio Paulo da Silva, Bruna Aparecida Souza Machado, Ana Paula Trovatti Uetanabaro
This work evaluated the effect of cocoa pulp as a malt adjunct on the parameters of fermentation for beer production on a pilot scale. For this purpose, yeast isolated from the spontaneous fermentation of cachaça (SC52), belonging to the strain bank of the State University of Feira de Santana-Ba (Brazil), and a commercial strain of ale yeast (Safale S-04 Belgium) were used. The beer produced was subjected to acceptance and purchase intention tests for sensorial analysis. At the beginning of fermentation, 30% cocoa pulp (adjunct) was added to the wort at 12°P concentration...
2017: PloS One
https://www.readbyqxmd.com/read/28416865/folic-acid-content-and-antioxidant-activity-of-different-types-of-beers-available-in-hungarian-retail
#5
Dániel Koren, Csaba Orbán, Nóra Galló, Szilárd Kun, Beáta Vecseri-Hegyes, Gabriella Kun-Farkas
In this study 40 Hungarian retail beers were evaluated for folic acid content, antioxidant profile and physicochemical parameters. The physicochemical parameters, folic acid content and antioxidant activity of alcohol-free beers were the lowest. Folic acid content of beers aged with sour cherries showed high values, more than 0.4 mg/l and an alcohol-free beer-based mixed drink made with lemon juice contained more than 0.2 mg/l of folic acid. Dark beers and beers aged with sour cherries had the highest antioxidant activity probably owing to their high extract content, components released from the fruits and special malts...
April 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28416003/characterization-and-risk-estimate-of-cancer-in-patients-with-primary-sj%C3%A3-gren-syndrome
#6
Pilar Brito-Zerón, Belchin Kostov, Guadalupe Fraile, Daniel Caravia-Durán, Brenda Maure, Francisco-Javier Rascón, Mónica Zamora, Arnau Casanovas, Miguel Lopez-Dupla, Mar Ripoll, Blanca Pinilla, Eva Fonseca, Miriam Akasbi, Gloria de la Red, Miguel-Angel Duarte-Millán, Patricia Fanlo, Pablo Guisado-Vasco, Roberto Pérez-Alvarez, Antonio J Chamorro, César Morcillo, Iratxe Jiménez-Heredia, Isabel Sánchez-Berná, Armando López-Guillermo, Manuel Ramos-Casals
BACKGROUND: The purpose of this study is to characterize the risk of cancer in a large cohort of patients with primary Sjögren syndrome (SjS). METHODS: We had analyzed the development of cancer in 1300 consecutive patients fulfilling the 2002 SjS classification criteria. The baseline clinical and immunological characteristics and systemic activity (ESSDAI scores) were assessed at diagnosis as predictors of cancer using Cox proportional hazards regression analysis adjusted for age at diagnosis and gender...
April 17, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28411911/risk-assessment-in-small-renal-masses-a-review-article
#7
REVIEW
Maxine Sun, Malte Vetterlein, Lauren C Harshman, Steven L Chang, Toni K Choueiri, Quoc-Dien Trinh
The incidence of localized renal cell carcinoma (RCC) has been steadily increasing, in large part because of the increased use of imaging. Optimizing the management of localized RCC has become one of the leading priorities and foremost challenges within the urologic-oncologic community. Adequate risk stratification of patients following the diagnosis of localized RCC has become meaningful in deciding whether to treat, how to treat, and how intensively to treat. This article characterizes the existing risk assessment models that can be useful as treatment decision aids for patients with localized RCC...
May 2017: Urologic Clinics of North America
https://www.readbyqxmd.com/read/28409429/multivariate-statistical-assessment-of-a-polluted-river-under-nitrification-inhibition-in-the-tropics
#8
Thi Thu Huyen Le, Stephanie Zeunert, Malte Lorenz, Günter Meon
A large complex water quality data set of a polluted river, the Tay Ninh River, was evaluated to identify its water quality problems, to assess spatial variation, to determine the main pollution sources, and to detect relationships between parameters. This river is highly polluted with organic substances, nutrients, and total iron. An important problem of the river is the inhibition of the nitrification. For the evaluation, different statistical techniques including cluster analysis (CA), discriminant analysis (DA), and principal component analysis (PCA) were applied...
April 13, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28409293/defining-the-need-for-surgery-in-small-bowel-obstruction
#9
Florian Kuehn, Malte Weinrich, Sarah Ehmann, Katja Kloker, Ilaria Pergolini, Ernst Klar
BACKGROUND: Small-bowel obstruction is a frequent disorder in emergency medicine and represents a major burden for patients and health care systems worldwide. Within the past years, progress has been made regarding the management of small-bowel obstructions, including the use of contrast agent swallow as a tool in the decision-making process. OBJECTIVES: This is a prospective controlled study investigating the central role of contrast agent swallow in the diagnostic and treatment algorithm for small-bowel obstruction at a university department of surgery...
April 13, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/28407903/perceived-bitterness-character-of-beer-in-relation-to-hop-variety-and-the-impact-of-hop-aroma
#10
Olayide Oladokun, Sue James, Trevor Cowley, Frieda Dehrmann, Katherine Smart, Joanne Hort, David Cook
The impact of hop variety and hop aroma on perceived beer bitterness intensity and character was investigated using analytical and sensory methods. Beers made from malt extract were hopped with 3 distinctive hop varieties (Hersbrucker, East Kent Goldings, Zeus) to achieve equi-bitter levels. A trained sensory panel determined the bitterness character profile of each singly-hopped beer using a novel lexicon. Results showed different bitterness character profiles for each beer, with hop aroma also found to change the hop variety-derived bitterness character profiles of the beer...
September 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28406049/evaluation-of-reduced-dose-ct-for-acute-non-traumatic-abdominal-pain-evaluation-of-diagnostic-accuracy-in-comparison-to-standard-dose-ct
#11
Ahmed E Othman, Malte Niklas Bongers, Dominik Zinsser, Christoph Schabel, Julian L Wichmann, Rami Arshid, Mike Notohamiprodjo, Konstantin Nikolaou, Fabian Bamberg
Background Patients with acute non-traumatic abdominal pain often undergo abdominal computed tomography (CT). However, abdominal CT is associated with high radiation exposure. Purpose To evaluate diagnostic performance of a reduced-dose 100 kVp CT protocol with advanced modeled iterative reconstruction as compared to a linearly blended 120 kVp protocol for assessment of acute, non-traumatic abdominal pain. Material and Methods Two radiologists assessed 100 kVp and linearly blended 120 kVp series of 112 consecutive patients with acute non-traumatic pain (onset < 48 h) regarding image quality, noise, and artifacts on a five-point Likert scale...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28404907/investigation-of-three-potential-autoantibodies-in-sjogren-s-syndrome-and-associated-malt-lymphoma
#12
Li Cui, Naseim Elzakra, Shuaimei Xu, Gary Guishan Xiao, Yan Yang, Shen Hu
Primary Sjögren's syndrome (pSS) is a chronic autoimmune disease which might progress to mucosal-associated lymphoid tissue lymphoma (pSS/MALT). Diagnosis of pSS requires an invasive tissue biopsy and a delay in diagnosis of pSS has been frequently reported. In this study, four proteins including cofilin-1, alpha-enolase, annexin A2 and Rho GDP-dissociation inhibitor 2 (RGI2) were found to be over-expressed in pSS and pSS/MALT by 2D gel electrophoresis/mass spectrometry, and the finding was verified by the microarray analysis and western blotting results...
February 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28404545/doxepin-inhibits-gpvi-dependent-platelet-ca-2-signaling-and-collagen-dependent-thrombus-formation
#13
Sascha Geue, Britta Walker-Allgaier, Daniela Eißler, Roland Tegtmeyer, Malte Schaub, Florian Lang, Meinrad Gawaz, Oliver Borst, Patrick Münzer
Platelet adhesion, activation and aggregation are essential for primary haemostasis, but are also critically involved in the development of acute arterial thrombotic occlusion. Stimulation of the collagen receptor glyocoprotein VI (GPVI) leads to PLCγ-dependent IP3 production with subsequent platelet activation, due to increased intracellular calcium concentration ([Ca(2+)]i). Although it has been described that tricyclic antidepressants potentially impair platelet activation, nothing is hitherto known about potential effects of the tricyclic antidepressant doxepin on platelet Ca(2+) signaling and thrombus formation...
April 12, 2017: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/28401977/benzylene-linked-pnp-scaffolds-and-their-cyclometalated-zirconium-and-hafnium-complexes
#14
Malte Sietzen, Sonja Batke, Patrick W Antoni, Hubert Wadepohl, Joachim Ballmann
The benzylene-linked [PNP] scaffolds HN(CH2-o-C6H4PPh2)2 ([A]H) and HN(C6H4-o-CH2PPh2)2 ([B]H) have been used for the synthesis of zirconium and hafnium complexes. For both ligands, the dimethylamides [A]M(NMe2)3 ([A]1-M) and [B]M(NMe2)3 ([B]1-M) were prepared and converted to the iodides [A]MI3 ([A]2-M) and [B]MI3 ([B]2-M) (M = Zr, Hf). Starting from these iodides, the corresponding benzyl derivatives [A]MBn3 ([A]3-M) and [B]MBn3 ([B]3-M) (M = Zr, Hf) were obtained via reaction with Bn2Mg(OEt2)2. For zirconium, the benzylic ligand positions in [A]3-Zr and [B]3-Zr were found to cyclometalate readily, which led to the corresponding κ(4)-[PCNP]ZrBn2 complexes [A]4-Zr and [B]4-Zr...
April 12, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28400537/yap-mediated-mechanotransduction-determines-the-podocyte-s-response-to-damage
#15
Markus M Rinschen, Florian Grahammer, Ann-Kathrin Hoppe, Priyanka Kohli, Henning Hagmann, Oliver Kretz, Sabine Bertsch, Martin Höhne, Heike Göbel, Malte P Bartram, Rajesh Kumar Gandhirajan, Marcus Krüger, Paul-Thomas Brinkkoetter, Tobias B Huber, Martin Kann, Sara A Wickström, Thomas Benzing, Bernhard Schermer
Podocytes are terminally differentiated cells of the kidney filtration barrier. They are subjected to physiological filtration pressure and considerable mechanical strain, which can be further increased in various kidney diseases. When injury causes cytoskeletal reorganization and morphological alterations of these cells, the filtration barrier may become compromised and allow proteins to leak into the urine (a condition called proteinuria). Using time-resolved proteomics, we showed that podocyte injury stimulated the activity of the transcriptional coactivator YAP and the expression of YAP target genes in a rat model of glomerular disease before the development of proteinuria...
April 11, 2017: Science Signaling
https://www.readbyqxmd.com/read/28400461/matched-comparison-of-self-expanding-transcatheter-heart-valves-for-the-treatment-of-failed-aortic-surgical-bioprosthesis-insights-from-the-valve-in-valve-international-data-registry-vivid
#16
Sami Alnasser, Asim N Cheema, Matheus Simonato, Marco Barbanti, Jeremy Edwards, Ran Kornowski, Eric Horlick, Harindra C Wijeysundera, Luca Testa, Francesco Bedogni, Hafid Amrane, Thomas Walther, Marc Pelletier, Azeem Latib, Jean-Claude Laborde, David Hildick-Smith, Won-Keun Kim, Didier Tchetche, Marco Agrifoglio, Jan-Malte Sinning, Ad J van Boven, Joëlle Kefer, Christian Frerker, Nicolas M van Mieghem, Axel Linke, Stephen Worthley, Anita Asgar, Carmelo Sgroi, Mina Aziz, Haim D Danenberg, Marino Labinaz, Ganesh Manoharan, Anson Cheung, John G Webb, Danny Dvir
BACKGROUND: Transcatheter valve-in-valve implantation is an established therapy for high-risk patients with failed surgical aortic bioprosthesis. There are limited data comparing outcomes of valve-in-valve implantation using different transcatheter heart valves (THV). METHODS AND RESULTS: Patients included in the Valve-in-Valve International Data registry (VIVID) and treated with self-expanding THV devices were analyzed using centralized core laboratory blinded to clinical events...
April 2017: Circulation. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28400000/influence-of-growth-conditions-on-adhesion-of-yeast-candida-spp-and-pichia-spp-to-stainless-steel-surfaces
#17
Ružica Tomičić, Peter Raspor
An understanding of adhesion behavior of Candida and Pichia yeast under different environmental conditions is key to the development of effective preventive measures against biofilm-associated infection. Hence in this study we investigated the impact of growth medium and temperature on Candida and Pichia adherence using stainless steel (AISI 304) discs with different degrees of surface roughness (Ra = 25.20-961.9 nm), material typical for the food processing industry as well as medical devices. The adhesion of the yeast strains to stainless steel surfaces grown in Malt Extract broth (MEB) or YPD broth at three temperatures (7 °C, 37 °C, 43 °C for Candida strains and 7 °C, 27 °C, 32 °C for Pichia strains) was assessed by crystal violet staining...
August 2017: Food Microbiology
https://www.readbyqxmd.com/read/28398251/proteolysis-in-helicobacter-pylori-induced-gastric-cancer
#18
REVIEW
Gernot Posselt, Jean E Crabtree, Silja Wessler
Persistent infections with the human pathogen and class-I carcinogen Helicobacter pylori (H. pylori) are closely associated with the development of acute and chronic gastritis, ulceration, gastric adenocarcinoma and lymphoma of the mucosa-associated lymphoid tissue (MALT) system. Disruption and depolarization of the epithelium is a hallmark of H. pylori-associated disorders and requires extensive modulation of epithelial cell surface structures. Hence, the complex network of controlled proteolysis which facilitates tissue homeostasis in healthy individuals is deregulated and crucially contributes to the induction and progression of gastric cancer through processing of extracellular matrix (ECM) proteins, cell surface receptors, membrane-bound cytokines, and lateral adhesion molecules...
April 11, 2017: Toxins
https://www.readbyqxmd.com/read/28397767/helicobacter-pylori-strains-and-gastric-malt-lymphoma
#19
REVIEW
Pauline Floch, Francis Mégraud, Philippe Lehours
This article summarizes the main findings concerning Helicobacter pylori associated with gastric MALT lymphoma (GML). Considered together, GML strains based on their virulence factor profile appear to be less virulent than those associated with peptic ulcers or gastric adenocarcinoma. A particular Lewis antigen profile has been identified in GML strains and could represent an alternative adaptive mechanism to escape the host immune response thereby allowing continuous antigenic stimulation of infiltrating lymphocytes...
April 8, 2017: Toxins
https://www.readbyqxmd.com/read/28396121/antagonism-of-profibrotic-microrna-21-improves%C3%A2-outcome-of-murine-chronic-renal-allograft-dysfunction
#20
Celina Schauerte, Anika Hübner, Song Rong, Shijun Wang, Nelli Shushakova, Michael Mengel, Angela Dettling, Claudia Bang, Kristian Scherf, Malte Koelling, Anette Melk, Hermann Haller, Thomas Thum, Johan M Lorenzen
Chronic renal allograft dysfunction (CAD) is a major limiting factor of long-term graft survival. It is characterized by interstitial fibrosis and tubular atrophy. The underlying pathomechanisms are incompletely understood. MicroRNAs are powerful regulators of gene expression and may have an impact on various diseases by direct mRNA decay or translational inhibition. A murine model of allogenic kidney transplantation was used resulting in CAD at 6 weeks after kidney transplantation. We identified fibrosis-associated miR-21a-5p by whole miRNAome expression analysis to be among the most highly upregulated miRNAs...
April 8, 2017: Kidney International
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