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https://www.readbyqxmd.com/read/29244504/mode-selective-laser-control-of-palladium-catalyst-decomposition
#1
Patrick J J Carr, Michael J Lecours, Michael Burt, Rick A Marta, Vincent Steinmetz, Eric Fillion, W Scott Hopkins
It is generally assumed that molecules behave ergodically during chemical reactions, that is, reactivities depend only on the total energy content, and not on the initial state of the molecule. While there are a few examples of non-ergodic behavior in small (usually electronically excited) species, to date there have been no reports of such behavior in larger covalently-bound species composed of several 10s of atoms. Here, we demonstrate vibrational mode-selective behavior in a series of palladium catalysts...
December 15, 2017: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/29237468/left-ventricular-synchrony-torsion-and-recoil-mechanics-in-ebstein-s-anomaly-insights-from-cardiovascular-magnetic-resonance
#2
Michael Steinmetz, Simon Usenbenz, Johannes Tammo Kowallick, Olga Hösch, Wieland Staab, Torben Lange, Shelby Kutty, Joachim Lotz, Gerd Hasenfuß, Thomas Paul, Andreas Schuster
BACKGROUND: Disease progression and heart failure development in Ebstein's Anomaly (EA) of the tricuspid valve is characterized by both right and left ventricular (LV) deterioration. The mechanisms underlying LV dysfunction and their role in heart failure development are incompletely understood. We hypothesized that LV dyssynchrony and impaired torsion and recoil mechanics induced by paradoxical movement of the basal septum may play a role in heart failure development. METHODS: 31 EA patients and 31 matched controls underwent prospective cardiovascular magnetic resonance (CMR)...
December 14, 2017: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/29227648/quinazolinone-based-anticancer-agents-synthesis-anti-proliferative-sar-anti-tubulin-activity-and-tubulin-co-crystal-structure
#3
Wolfgang Dohle, Fabrice L Jourdan, Gregory Menchon, Andrea E Prota, Paul A Foster, Pascoe Mannion, Ernest Hamel, Mark P Thomas, Philip G Kasprzyk, Eric Ferrandis, Michel O Steinmetz, Mathew P Leese, Barry V L Potter
Quinazolinone-based anti-cancer agents were designed, decorated with functional groups from a 2-methoxyestradiol-based microtubule disruptor series, incorporating the aryl sulfamate motif of steroid sulfatase (STS) inhibitors. The steroidal AB-ring system was mimicked, favoring conformations with an N-2 substituent occupying D-ring space. Evaluation against breast and prostate tumor cell lines identified 7b with DU-145 anti-proliferative activity (GI50 300 nM). A preliminary structure-activity relationship afforded compounds (e...
December 11, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29225903/early-clinical-outcomes-as-a-function-of-use-of-newer-oral-p2y12-inhibitors-versus-clopidogrel-in-the-euromax-trial
#4
Kurt Huber, Gregory Ducrocq, Christian W Hamm, Arnoud van 't Hof, Frédéric Lapostolle, Pierre Coste, Giovanni Gordini, Jacob Steinmetz, Freek W A Verheugt, Jennifer Adgey, Lutz Nibbe, Vojko Kaniĉ, Peter Clemmensen, Uwe Zeymer, Debra Bernstein, Jayne Prats, Efthymios N Deliargyris, Ph Gabriel Steg
Objective: To ascertain whether different oral P2Y12 inhibitors might affect rates of acute stent thrombosis and 30-day outcomes after primary percutaneous coronary intervention (pPCI). Methods: The European Ambulance Acute Coronary Syndrome Angiography (EUROMAX) randomised trial compared prehospital bivalirudin with heparin with optional glycoprotein IIb/IIIa inhibitor treatment in patients with ST-segment elevation myocardial infarction triaged to pPCI. Choice of P2Y12 inhibitor was at the investigator's discretion...
2017: Open Heart
https://www.readbyqxmd.com/read/29217683/insulin-like-growth-factor-ii-targets-the-mtor-pathway-to-reverse-autism-like-phenotypes-in-mice
#5
Adam B Steinmetz, Sarah A Stern, Amy S Kohtz, Giannina Descalzi, Cristina M Alberini
Autism spectrum disorder (ASD) is a developmental disability characterized by impairments in social interaction and repetitive behavior, and is also associated with cognitive deficits. There is no current treatment that can ameliorate most of the ASD symptomatology; thus, identifying novel therapies is urgently needed. We used male BTBR T+Itpr3tf /J (BTBR) mice, a model that reproduces most of the core behavioral phenotypes of ASD, to test the effects of systemic administration of insulin like growth factor II (IGF-II), a polypeptide that crosses the blood brain barrier and acts as a cognitive enhancer...
December 7, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29206838/implementation-of-stroke-teams-and-simulation-training-shortened-process-times-in-a-regional-stroke-network-a-network-wide-prospective-trial
#6
Damla Tahtali, Ferdinand Bohmann, Natalia Kurka, Peter Rostek, Anelia Todorova-Rudolph, Martin Buchkremer, Mario Abruscato, Ann-Kathrin Hartmetz, Andrea Kuhlmann, Christian Henke, André Stegemann, Sanjay Menon, Björn Misselwitz, Anke Reihs, Stefan Weidauer, Sven Thonke, Uta Meyding-Lamadé, Oliver Singer, Helmuth Steinmetz, Waltraud Pfeilschifter
BACKGROUND: To meet the requirements imposed by the time-dependency of acute stroke therapies, it is necessary 1) to initiate structural and cultural changes in the breadth of stroke-ready hospitals and 2) to find new ways to train the personnel treating patients with acute stroke. We aimed to implement and validate a composite intervention of a stroke team algorithm and simulation-based stroke team training as an effective quality initiative in our regional interdisciplinary neurovascular network consisting of 7 stroke units...
2017: PloS One
https://www.readbyqxmd.com/read/29205612/homeodomain-interacting-protein-kinase-phosphorylates-the-drosophila-paired-box-protein-6-pax6-homologues-twin-of-eyeless-and-eyeless
#7
E L Steinmetz, D N Dewald, U Walldorf
Homeodomain-interacting protein kinase (Hipk), the Drosophila homologue of mammalian HIPK2, plays several important roles in regulating differentiation, proliferation, apoptosis, and stress responses and acts as a mediator for signals of diverse pathways, such as Notch or Wingless signalling. The Paired box protein 6 (Pax6) has two Drosophila homologues, Twin of eyeless (Toy) and Eyeless (Ey). Both stand atop the retinal determination gene network (RDGN), which is essential for proper eye development in Drosophila...
December 4, 2017: Insect Molecular Biology
https://www.readbyqxmd.com/read/29203952/effect-of-intra-tumoral-magnetic-nanoparticle-hyperthermia-and-viral-nanoparticle-immunogenicity-on-primary-and-metastatic-cancer
#8
P Jack Hoopes, Courtney M Mazur, Bjorn Osterberg, Ailin Song, David J Gladstone, Nicole F Steinmetz, Frank A Veliz, Alicea A Bursey, Robert J Wagner, Steven N Fiering
Although there is long association of medical hyperthermia and immune stimulation, the relative lack of a quantifiable and reproducible effect has limited the utility and advancement of this relationship in preclinical/clinical cancer and non-cancer settings. Recent cancer-based immune findings (immune checkpoint modulators etc.) including improved mechanistic understanding and biological tools now make it possible to modify and exploit the immune system to benefit conventional cancer treatments such as radiation and hyperthermia...
January 2017: Proceedings of SPIE
https://www.readbyqxmd.com/read/29203951/hypo-fractionated-radiation-magnetic-nanoparticle-hyperthermia-and-a-viral-immunotherapy-treatment-of-spontaneous-canine-cancer
#9
P Jack Hoopes, Karen L Moodie, Alicia A Petryk, James D Petryk, Shawntel Sechrist, David J Gladstone, Nicole F Steinmetz, Frank A Veliz, Alicea A Bursey, Robert J Wagner, Ashish Rajan, Danielle Dugat, Margaret Crary-Burney, Steven N Fiering
It has recently been shown that cancer treatments such as radiation and hyperthermia, which have conventionally been viewed to have modest immune based anti-cancer effects, may, if used appropriately stimulate a significant and potentially effective local and systemic anti-cancer immune effect (abscopal effect) and improved prognosis. Using eight spontaneous canine cancers (2 oral melanoma, 3 oral amelioblastomas and 1 carcinomas), we have shown that hypofractionated radiation (6 x 6 Gy) and/or magnetic nanoparticle hyperthermia (2 X 43°C / 45 minutes) and/or an immunogenic virus-like nanoparticle (VLP, 2 x 200 μg) are capable of delivering a highly effective cancer treatment that includes an immunogenic component...
January 2017: Proceedings of SPIE
https://www.readbyqxmd.com/read/29202016/inhibition-of-ngly1-inactivates-the-transcription-factor-nrf1-and-potentiates-proteasome-inhibitor-cytotoxicity
#10
Frederick M Tomlin, Ulla I M Gerling-Driessen, Yi-Chang Liu, Ryan A Flynn, Janakiram R Vangala, Christian S Lentz, Sandra Clauder-Muenster, Petra Jakob, William F Mueller, Diana Ordoñez-Rueda, Malte Paulsen, Naoko Matsui, Deirdre Foley, Agnes Rafalko, Tadashi Suzuki, Matthew Bogyo, Lars M Steinmetz, Senthil K Radhakrishnan, Carolyn R Bertozzi
Proteasome inhibitors are used to treat blood cancers such as multiple myeloma (MM) and mantle cell lymphoma. The efficacy of these drugs is frequently undermined by acquired resistance. One mechanism of proteasome inhibitor resistance may involve the transcription factor Nuclear Factor, Erythroid 2 Like 1 (NFE2L1, also referred to as Nrf1), which responds to proteasome insufficiency or pharmacological inhibition by upregulating proteasome subunit gene expression. This "bounce-back" response is achieved through a unique mechanism...
November 22, 2017: ACS Central Science
https://www.readbyqxmd.com/read/29185520/gut-like-ectodermal-tissue-in-a-sea-anemone-challenges-germ-layer-homology
#11
Patrick R H Steinmetz, Andy Aman, Johanna E M Kraus, Ulrich Technau
Cnidarians (for example, sea anemones and jellyfish) develop from an outer ectodermal and inner endodermal germ layer, whereas bilaterians (for example, vertebrates and flies) additionally have a mesodermal layer as intermediate germ layer. Currently, cnidarian endoderm (that is, 'mesendoderm') is considered homologous to both bilaterian endoderm and mesoderm. Here we test this hypothesis by studying the fate of germ layers, the localization of gut cell types, and the expression of numerous 'endodermal' and 'mesodermal' transcription factor orthologues in the anthozoan sea anemone Nematostella vectensis...
October 2017: Nature Ecology & Evolution
https://www.readbyqxmd.com/read/29184145/erratum-modulation-of-mrna-and-lncrna-expression-dynamics-by-the-set2-rpd3s-pathway
#12
Ji Hyun Kim, Bo Bae Lee, Young Mi Oh, Chenchen Zhu, Lars M Steinmetz, Yookyeong Lee, Wan Kyu Kim, Sung Bae Lee, Stephen Buratowski, TaeSoo Kim
This corrects the article DOI: 10.1038/ncomms13534.
November 29, 2017: Nature Communications
https://www.readbyqxmd.com/read/29173027/cross-cultural-differences-in-item-and-background-memory-examining-the-influence-of-emotional-intensity-and-scene-congruency
#13
Katherine R Mickley Steinmetz, Charlee M Sturkie, Nina M Rochester, Xiaodong Liu, Angela H Gutchess
After viewing a scene, individuals differ in what they prioritise and remember. Culture may be one factor that influences scene memory, as Westerners have been shown to be more item-focused than Easterners (see Masuda, T., & Nisbett, R. E. (2001). Attending holistically versus analytically: Comparing the context sensitivity of Japanese and Americans. Journal of Personality and Social Psychology, 81, 922-934). However, cultures may differ in their sensitivity to scene incongruences and emotion processing, which may account for cross-cultural differences in scene memory...
November 25, 2017: Memory
https://www.readbyqxmd.com/read/29169754/chronic-lower-dose-relaxin-administration-protects-from-arrhythmia-in-experimental-myocardial-infarction-due-to-anti-inflammatory-and-anti-fibrotic-properties
#14
Thomas Beiert, Vincent Knappe, Vedat Tiyerili, Florian Stöckigt, Verena Effelsberg, Markus Linhart, Martin Steinmetz, Sabine Klein, Robert Schierwagen, Jonel Trebicka, Wilhelm Roell, Georg Nickenig, Jan W Schrickel, René P Andrié
BACKGROUND: The peptide hormone relaxin-2 (RLX) exerts beneficial effects during myocardial ischemia, but functional data on lower-dose RLX in myocardial infarction (MI) is lacking. Therefore, we investigated the impact of 75μg/kg/d RLX treatment on electrical vulnerability and left ventricular function in a mouse model of MI. METHODS AND RESULTS: Standardized cryoinfarction of the left anterior ventricular wall was performed in mice. A two week treatment period with vehicle or RLX via subcutaneously implanted osmotic minipumps was started immediately after MI...
January 1, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29161953/mental-simulation-of-visceral-states-affects-preferences-and-behavior
#15
Janina Steinmetz, Brittany M Tausen, Jane L Risen
Preferences and behavior are heavily influenced by one's current visceral experience, yet people often fail to anticipate such effects. Although research suggests that this gap is difficult to overcome-to act as if in another visceral state-research on mental simulation has demonstrated that simulations can substitute for experiences, albeit to a weaker extent. We examine whether mentally simulating visceral states can impact preferences and behavior. We show that simulating a specific visceral state (e.g., being cold or hungry) shifts people's preferences for relevant activities (Studies 1a-2) and choices of food portion sizes (Study 3)...
November 1, 2017: Personality & Social Psychology Bulletin
https://www.readbyqxmd.com/read/29155253/the-association-of-inflammatory-bowel-disease-and-immediate-postoperative-outcomes-following-lumbar-fusion
#16
Joseph E Tanenbaum, Stephanie T Kha, Edward C Benzel, Michael P Steinmetz, Thomas E Mroz
BACKGROUND CONTEXT: The United States Centers for Disease Control estimates the prevalence of inflammatory bowel disease (IBD) at over 3.1 million people. As diagnostic techniques and treatment options for IBD improve, the prevalence of IBD is expected to increase. For spine surgeons, patients with IBD have a unique complication profile because IBD patients may present with poor nutritional status and because the medications used to manage IBD have been associated with poor vertebral bone mineralization and immunosuppression...
November 15, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29144726/physalis-mottle-virus-like-particles-as-nanocarriers-for-imaging-reagents-and-drugs
#17
Hema Masarapu, Bindi K Patel, Paul L Chariou, He Hu, Neetu M Gulati, Bradley L Carpenter, Reza A Ghiladi, Sourabh Shukla, Nicole F Steinmetz
Platform technologies based on plant virus nanoparticles (VNPs) and virus-like particles (VLPs) are attracting the attention of researchers and clinicians because the particles are biocompatible, biodegradable, noninfectious in mammals, and can readily be chemically and genetically engineered to carry imaging agents and drugs. When the Physalis mottle virus (PhMV) coat protein is expressed in Escherichia coli, the resulting VLPs are nearly identical to the viruses formed in vivo. Here, we isolated PhMV-derived VLPs from ClearColi cells and carried out external and internal surface modification with fluorophores using reactive lysine-N-hydroxysuccinimide ester and cysteine-maleimide chemistries, respectively...
November 16, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/29120427/fully-integrated-silicon-probes-for-high-density-recording-of-neural-activity
#18
James J Jun, Nicholas A Steinmetz, Joshua H Siegle, Daniel J Denman, Marius Bauza, Brian Barbarits, Albert K Lee, Costas A Anastassiou, Alexandru Andrei, Çağatay Aydın, Mladen Barbic, Timothy J Blanche, Vincent Bonin, João Couto, Barundeb Dutta, Sergey L Gratiy, Diego A Gutnisky, Michael Häusser, Bill Karsh, Peter Ledochowitsch, Carolina Mora Lopez, Catalin Mitelut, Silke Musa, Michael Okun, Marius Pachitariu, Jan Putzeys, P Dylan Rich, Cyrille Rossant, Wei-Lung Sun, Karel Svoboda, Matteo Carandini, Kenneth D Harris, Christof Koch, John O'Keefe, Timothy D Harris
Sensory, motor and cognitive operations involve the coordinated action of large neuronal populations across multiple brain regions in both superficial and deep structures. Existing extracellular probes record neural activity with excellent spatial and temporal (sub-millisecond) resolution, but from only a few dozen neurons per shank. Optical Ca(2+) imaging offers more coverage but lacks the temporal resolution needed to distinguish individual spikes reliably and does not measure local field potentials. Until now, no technology compatible with use in unrestrained animals has combined high spatiotemporal resolution with large volume coverage...
November 8, 2017: Nature
https://www.readbyqxmd.com/read/29119274/quantification-of-pulmonary-regurgitation-and-prediction-of-pulmonary-valve-replacement-by-echocardiography-in-patients-with-congenital-heart-defects-in-comparison-to-cardiac-magnetic-resonance-imaging
#19
Claudia Dellas, Laura Kammerer, Verena Gravenhorst, Joachim Lotz, Thomas Paul, Michael Steinmetz
Pulmonary regurgitation (PR) is common in patients with congenital heart defects (CHD) and contributes to morbidity and mortality in the long-term. We investigated in this retrospective analysis whether readily accessible echocardiographic parameters are useful for quantification of PR and for predicting pulmonary valve replacement (PVR) in comparison to the gold-standard phase contrast (PC) flow measurements from cardiovascular magnetic resonance (CMR). Continuous wave (CW) Doppler and colour flow images in echocardiograms from 53 patients with CHD were analysed...
November 8, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29118030/large-scale-low-cost-ngs-library-preparation-using-a-robust-tn5-purification-and-tagmentation-protocol
#20
Bianca P Hennig, Lars Velten, Ines Racke, Chelsea Szu Tu, Matthias Thoms, Vladimir Rybin, Hüseyin Besir, Kim Remans, Lars M Steinmetz
Efficient preparation of high quality sequencing libraries that represent well the biological sample is a key step for using next-generation sequencing in research. Tn5 enables fast, robust, and highly efficient processing of limited input material while scaling to the parallel processing of hundreds of samples. Here, we present a robust Tn5 transposase purification strategy based on an N-terminal His6-Sumo3 tag. We demonstrate that libraries prepared with our in-house Tn5 are of the same quality as those processed with a commercially available kit (Nextera XT), while they reduce the cost of large-scale experiments dramatically...
November 8, 2017: G3: Genes—Genomes—Genetics
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