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https://www.readbyqxmd.com/read/29786862/experimental-fluence-modulated-proton-computed-tomography-by-pencil-beam-scanning
#1
George Dedes, Robert P Johnson, Mark Pankuch, Nick Detrich, Willemijn M A Pols, Simon Rit, Reinhard W Schulte, Katia Parodi, Guillaume Landry
PURPOSE: This experimental study is aimed at demonstrating, using a simple cylindrical water phantom, the feasibility of fluence modulated proton computed tomography (FMpCT) by pencil beam scanning (PBS) proton computed tomography (pCT). METHODS: The phase II pCT prototype of the Loma Linda U. and U. C. Santa Cruz was operated using the PBS beam line of the Northwestern Medicine Chicago Proton Center. A 20x10 grid of 1.37 cm full width half maximum pencil beams (PB) equally spaced by 1 cm was used to acquire 45 projections in step and shoot mode...
May 22, 2018: Medical Physics
https://www.readbyqxmd.com/read/29786142/the-bone-marrow-is-not-only-a-primary-lymphoid-organ-the-critical-role-for-t-lymphocyte-migration-and-housing-of-long-term-memory-plasma-cells
#2
REVIEW
Reinhard Pabst
In immunology and anatomy textbooks the bone marrow is described as a typical "primary lymphoid organ" producing lymphoid cells independent of antigens. The hematopoietic bone marrow is largely age-dependent organ with great anatomical and functional differences among various species. There are estimates that about 12 % of all lymphoid cells in the human body are found in the bone marrow at any given time (2 % in the peripheral blood). Enormous numbers of T lymphocytes migrate to the bone marrow and partly return later to the blood...
May 22, 2018: European Journal of Immunology
https://www.readbyqxmd.com/read/29786141/an-inhibitory-antibody-targeting-carbonic-anhydrase-xii-abrogates-chemoresistance-and-significantly-reduces-lung-metastases-in-an-orthotopic-breast-cancer-model-in-vivo
#3
Bettina von Neubeck, Gabor Gondi, Chiara Riganti, Chenchen Pan, Arnaldo Parra Damas, Hagen Scherb, Ali Ertürk, Reinhard Zeidler
Carbonic Anhydrase XII (CAXII) is a membrane-tethered ectoenzyme involved in intracellular pH regulation and overexpressed across various types of human cancer. Because CAXII inhibition shows antitumour activity in vitro, it is thought that the enzyme is mandatory for maximum tumour growth, above all under hypoxic conditions. Recently, it has been shown that CAXII is co-expressed along with the P-glycoprotein (P-GP) on many tumour cells and that both proteins physically interact. Of interest, blocking CAXII activity also decreases P-GP activity in cancer cells both in vitro and in vivo...
May 22, 2018: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29786135/scientific-update-on-nanoparticles-in-dentistry
#4
REVIEW
Gottfried Schmalz, Reinhard Hickel, Kirsten L van Landuyt, Franz-Xaver Reichl
Nanoparticles having a size from 1 to 100 nm are present in nature and are successfully used in many products of daily life. In dental materials, nanoparticles are typically embedded but they may also exist as by-products from milling processes. Possible adverse effects of nanoparticles have gained increased interest, with the lungs being the main target organ. Exposure to nanoparticles in the dental laboratory is addressed by legal regulations. In dental practice, nanoparticles are mainly produced by intra-oral grinding/polishing and removal of materials, by wear of restorations or release from dental implants...
May 22, 2018: International Dental Journal
https://www.readbyqxmd.com/read/29783835/dilational-visco-elasticity-of-proteins-solutions-in-dynamic-conditions
#5
Valentin B Fainerman, Volodymyr I Kovalchuk, Eugene V Aksenenko, Igor I Zinkovych, Alexander V Makievski, Mykola V Nikolenko, Reinhard Miller
Drop profile analysis tensiometry used in the oscillating drop mode provides the dilational visco-elasticity of adsorption layers at liquid interfaces. Applied during the progress of adsorption the dynamic surface rheology can be monitored. For β-casein solutions at the same surface pressure values, the dynamic dilational visco-elasticity is the larger, the longer the adsorption time is, i.e. the smaller the studied protein concentration is. For β-lactoglobulin and human serum albumin, the differences in the visco-elasticity values are less or not dependent on the adsorption time at identical surface pressures...
May 21, 2018: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/29781775/ambient-temperature-co-digestion-of-low-solids-municipal-and-industrial-waste-mixtures-insights-from-molecular-analyses
#6
Ramin Yazdani, Kyuhwan Shim, Zhi Chen, Christy Cheung, Matthew D Summers, Douglas W Williams, Reinhard Seiser, Susan K De Long
No abstract text is available yet for this article.
May 21, 2018: Journal of the Air & Waste Management Association
https://www.readbyqxmd.com/read/29780299/the-first-loranthaceae-fossils-from-africa
#7
Friðgeir Grímsson, Alexandros Xafis, Frank H Neumann, Louis Scott, Marion K Bamford, Reinhard Zetter
An ongoing re-investigation of the early Miocene Saldanha Bay (South Africa) palynoflora, using combined light and scanning electron microscopy (single grain method), is revealing several pollen types new to the African fossil record. One of the elements identified is Loranthaceae pollen. These grains represent the first and only fossil record of Loranthaceae in Africa. The fossil pollen grains resemble those produced by the core Lorantheae and are comparable to recent Asian as well as some African taxa/lineages...
2018: Grana
https://www.readbyqxmd.com/read/29779243/co-occurrence-of-schwannomatosis-and-rhabdoid-tumor-predisposition-syndrome-1
#8
Hildegard Kehrer-Sawatzki, Uwe Kordes, Simone Seiffert, Anna Summerer, Christian Hagel, Ulrich Schüller, Said Farschtschi, Reinhard Schneppenheim, Martin Bendszus, Tim Godel, Victor-Felix Mautner
BACKGROUND: The clinical phenotype associated with germline SMARCB1 mutations has as yet not been fully documented. It is known that germline SMARCB1 mutations may cause rhabdoid tumor predisposition syndrome (RTPS1) or schwannomatosis. However, the co-occurrence of rhabdoid tumor and schwannomas in the same patient has not so far been reported. METHODS: We investigated a family with members harboring a germline SMARCB1 deletion by means of whole-body MRI as well as high-resolution microstructural magnetic resonance neurography (MRN)...
May 20, 2018: Molecular Genetics & Genomic Medicine
https://www.readbyqxmd.com/read/29778503/autoinflammatory-mutation-in-nlrc4-reveals-an-lrr-lrr-oligomerization-interface
#9
Fiona Moghaddas, Ping Zeng, Yuxia Zhang, Heike Schützle, Sebastian Brenner, Sigrun R Hofmann, Reinhard Berner, Yuanbo Zhao, Bingtai Lu, Xiaoyun Chen, Li Zhang, Suyun Cheng, Stefan Winkler, Kai Lehmberg, Scott W Canna, Peter E Czabotar, Ian P Wicks, Dominic De Nardo, Christian M Hedrich, Huasong Zeng, Seth L Masters
BACKGROUND: Monogenic autoinflammatory disorders are characterised by dysregulation of the innate immune system, for example by gain-of-function mutations in inflammasome forming proteins such as NLRC4. OBJECTIVE: Here we investigate the mechanism by which a novel mutation in the leucine rich repeat (LRR) domain of NLRC4 (c.G1965C, p.W655C) contributes to autoinflammatory disease. METHODS: We studied two unrelated patients with early onset macrophage activation syndrome (MAS) harboring the same de novo mutation in NLRC4...
May 17, 2018: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29777034/membrane-fluctuations-and-acidosis-regulate-cooperative-binding-of-marker-of-self-cd47-with-macrophage-checkpoint-receptor-sirp%C3%AE
#10
Jan Steinkühler, Bartosz Różycki, Cory Alvey, Reinhard Lipowsky, Thomas R Weikl, Rumiana Dimova, Dennis E Discher
Cell-cell interactions that result from membrane proteins binding weakly in trans can cause accumulations in cis that suggest cooperativity and thereby an acute sensitivity to environmental factors. The ubiquitous "marker of self" protein CD47 binds weakly to SIRPα on a macrophage, which leads to accumulation of SIRPα at a phagocytic synapse and ultimately to inhibition of engulfment of 'self' cells - including cancer cells. We reconstituted this macrophage checkpoint with CD47-GFP displayed on giant vesicles generated from plasma membranes and then imaged vesicles adhering to SIRPα immobilized on a surface...
May 18, 2018: Journal of Cell Science
https://www.readbyqxmd.com/read/29776963/combined-vegf-and-pd-l1-blockade-displays-synergistic-treatment-effects-in-an-autochthonous-mouse-model-of-small-cell-lung-cancer
#11
Lydia Meder, Philipp Schuldt, Martin Thelen, Anna Schmitt, Felix Dietlein, Sebastian Klein, Sven Borchmann, Kerstin Wennhold, Ignacija Vlasic, Sebastian Oberbeck, Richard Riedel, Alexandra Florin, Kristina Golfmann, Hans Anton Schlößer, Margarete Odenthal, Reinhard Büttner, Juergen Wolf, Michael Hallek, Marco Herling, Michael von Bergwelt-Baildon, Hans Christian Reinhardt, Roland T Ullrich
Small cell lung cancer (SCLC) represents the most aggressive pulmonary neoplasm and is often diagnosed at late stage with limited survival, despite combined chemotherapies. We show in an autochthonous mouse model of SCLC that combined anti-VEGF/anti-PD-L1 targeted therapy synergistically improves treatment outcome compared to anti-PD-L1 and anti-VEGF monotherapy. Mice treated with anti-PD-L1 alone relapsed after 3 weeks and were associated with a tumor-associated PD-1/TIM-3 double positive exhausted T cell phenotype...
May 18, 2018: Cancer Research
https://www.readbyqxmd.com/read/29775348/individual-low-energy-toroidal-dipole-state-in-24-mg
#12
V O Nesterenko, A Repko, J Kvasil, P-G Reinhard
The low-energy dipole excitations in ^{24}Mg are investigated within the Skyrme quasiparticle random phase approximation for axial nuclei. The calculations with the force SLy6 reveal a remarkable feature: the lowest I^{π}K=1^{-}1 excitation (E=7.92  MeV) in ^{24}Mg is a vortical toroidal state (TS) representing a specific vortex-antivortex realization of the well-known spherical Hill's vortex in a strongly deformed axial confinement. This is a striking example of an individual TS which can be much more easily discriminated in experiment than the toroidal dipole resonance embracing many states...
May 4, 2018: Physical Review Letters
https://www.readbyqxmd.com/read/29774585/a-mild-form-of-haemophilia-a-is-associated-with-two-factor-viii-missense-mutations-in-german-fleckvieh-cattle
#13
Sina Reinartz, Christine Weiß, Reinhard Mischke, Ottmar Distl
No abstract text is available yet for this article.
May 18, 2018: Animal Genetics
https://www.readbyqxmd.com/read/29772900/pyrene-fused-s-indacene
#14
Jason Melidonie, Junzhi Liu, Yubin Fu, Jan J Weigand, Reinhard Berger, Xinliang Feng
One antiaromatic polycyclic hydrocarbon (PH) with and without solubilizing tert-butyl substituents, namely s-indaceno[2,1- a:6,5- a']dipyrene (IDPs), has been synthesized by a four-step protocol. The IDPs represent the longitudinal, peri-extension of the indeno[1,2- b]fluorene skeleton towards a planar 40 π-electron system. Their structures were unambiguously confirmed by X-ray crystallographic analysis. The optoelectronic properties were studied by UV/Vis absorption spectroscopy and cyclic voltammetry. These studies revealed that peri-fusion renders the IDP derivatives with a narrow optical energy gap of 1...
May 18, 2018: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/29769727/microbial-signals-drive-pre-leukaemic-myeloproliferation-in-a-tet2-deficient-host
#15
Marlies Meisel, Reinhard Hinterleitner, Alain Pacis, Li Chen, Zachary M Earley, Toufic Mayassi, Joseph F Pierre, Jordan D Ernest, Heather J Galipeau, Nikolaus Thuille, Romain Bouziat, Manuel Buscarlet, Daina L Ringus, Yitang Wang, Ye Li, Vu Dinh, Sangman M Kim, Benjamin D McDonald, Matthew A Zurenski, Mark W Musch, Glaucia C Furtado, Sergio A Lira, Gottfried Baier, Eugene B Chang, A Murat Eren, Christopher R Weber, Lambert Busque, Lucy A Godley, Elena F Verdú, Luis B Barreiro, Bana Jabri
Somatic mutations in tet methylcytosine dioxygenase 2 (TET2), which encodes an epigenetic modifier enzyme, drive the development of haematopoietic malignancies1-7 . In both humans and mice, TET2 deficiency leads to increased self-renewal of haematopoietic stem cells with a net developmental bias towards the myeloid lineage1,4,8,9 . However, pre-leukaemic myeloproliferation (PMP) occurs in only a fraction of Tet2-/- mice8,9 and humans with TET2 mutations1,3,5-7 , suggesting that extrinsic non-cell-autonomous factors are required for disease onset...
May 16, 2018: Nature
https://www.readbyqxmd.com/read/29769597/long-term-risk-for-end-stage-kidney-disease-and-death-in-a-large-population-based-cohort
#16
Emanuel Zitt, Constanze Pscheidt, Hans Concin, Reinhard Kramar, Raphael S Peter, Jan Beyersmann, Karl Lhotta, Gabriele Nagel
Knowledge of metabolic risk factors for end-stage kidney disease (ESKD) in the general population is limited when considering the competing event death in risk analysis. The aim of our prospective observational study was to investigate how blood pressure and metabolic factors might influence the risks for ESKD and death before ESKD in a large Austrian population-based cohort with long-term follow-up. 177,255 participants (53.8% women; mean age 42.5 years) were recruited between 1988 and 2005 and linked to the Austrian Dialysis and Transplant Registry and the National Mortality Registry...
May 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29768276/mindfulness-based-attention-training-improves-cognitive-and-affective-processes-in-daily-life-in-remitted-patients-with-recurrent-depression-a-randomized-controlled-trial
#17
Christina Timm, Bettina Rachota-Ubl, Theresa Beddig, Vera E Zamoscik, Ulrich Ebner-Priemer, Iris Reinhard, Peter Kirsch, Christine Kuehner
No abstract text is available yet for this article.
May 16, 2018: Psychotherapy and Psychosomatics
https://www.readbyqxmd.com/read/29768212/mtor-senses-environmental-cues-to-shape-the-fibroblast-like-synoviocyte-response-to-inflammation
#18
Thomas Karonitsch, Richard K Kandasamy, Felix Kartnig, Barbara Herdy, Karolina Dalwigk, Birgit Niederreiter, Johannes Holinka, Florian Sevelda, Reinhard Windhager, Martin Bilban, Thomas Weichhart, Marcus Säemann, Thomas Pap, Günter Steiner, Josef S Smolen, Hans P Kiener, Giulio Superti-Furga
Accumulating evidence suggests that metabolic master regulators, including mTOR, regulate adaptive and innate immune responses. Resident mesenchymal tissue components are increasingly recognized as key effector cells in inflammation. Whether mTOR also controls the inflammatory response in fibroblasts is insufficiently studied. Here, we show that TNF signaling co-opts the mTOR pathway to shift synovial fibroblast (FLS) inflammation toward an IFN response. mTOR pathway activation is associated with decreased NF-κB-mediated gene expression (e...
May 15, 2018: Cell Reports
https://www.readbyqxmd.com/read/29766220/reinhard-niessner-and-andreas-sch%C3%A3-ffer-organic-trace-analysis
#19
Melissa M Phillips
No abstract text is available yet for this article.
May 16, 2018: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/29764701/a-combination-of-skeletal-deformations-of-the-dorsal-mandible-and-temporomandibular-region-detected-in-orthopantomograms-of-patients-with-neurofibromatosis-type-1-indicates-an-associated-ipsilateral-plexiform-neurofibroma
#20
Reinhard E Friedrich, Anika Reul
PURPOSE: Neurofibromatosis type 1 (NF1) is a tumour suppressor syndrome and also a bone disease. In the craniofacial region, local skeletal deformities have been recorded in patients with NF1. Obvious syndrome-related alterations of the jaws are particularly conspicuous in the mandible. Here we aimed to analyse the mandibular alterations of NF1-affected individuals from orthopantomograms (OPGs). MATERIALS AND METHODS: This study analyses 358 OPGs of 358 patients (mean age, 34...
April 26, 2018: Journal of Cranio-maxillo-facial Surgery
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