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https://www.readbyqxmd.com/read/28538732/cps1-maintains-pyrimidine-pools-and-dna-synthesis-in-kras-lkb1-mutant-lung-cancer-cells
#1
Jiyeon Kim, Zeping Hu, Ling Cai, Kailong Li, Eunhee Choi, Brandon Faubert, Divya Bezwada, Jaime Rodriguez-Canales, Pamela Villalobos, Yu-Fen Lin, Min Ni, Kenneth E Huffman, Luc Girard, Lauren A Byers, Keziban Unsal-Kacmaz, Christopher G Peña, John V Heymach, Els Wauters, Johan Vansteenkiste, Diego H Castrillon, Benjamin P C Chen, Ignacio Wistuba, Diether Lambrechts, Jian Xu, John D Minna, Ralph J DeBerardinis
Metabolic reprogramming by oncogenic signals promotes cancer initiation and progression. The oncogene KRAS and tumour suppressor STK11, which encodes the kinase LKB1, regulate metabolism and are frequently mutated in non-small-cell lung cancer (NSCLC). Concurrent occurrence of oncogenic KRAS and loss of LKB1 (KL) in cells specifies aggressive oncological behaviour. Here we show that human KL cells and tumours share metabolomic signatures of perturbed nitrogen handling. KL cells express the urea cycle enzyme carbamoyl phosphate synthetase-1 (CPS1), which produces carbamoyl phosphate in the mitochondria from ammonia and bicarbonate, initiating nitrogen disposal...
May 24, 2017: Nature
https://www.readbyqxmd.com/read/28538298/quantifying-the-high-speed-running-and-sprinting-profiles-of-elite-female-soccer-players-during-competitive-matches-using-an-optical-player-tracking-system
#2
Jocelyn K Mara, Kevin G Thompson, Kate L Pumpa, Stuart Morgan
Mara, JK, Thompson, KG, Pumpa, KL, and Morgan, S. Quantifying the high-speed running and sprinting profiles of elite female soccer players during competitive matches using an optical player tracking system. J Strength Cond Res 31(6): 1500-1508, 2017-The aim of this study was to determine the high-speed running and sprinting profiles of elite female soccer players during competitive matches using a new Optical Player Tracking system. Eight stationary video cameras were positioned at vantage points surrounding the soccer field so that when each camera view was combined, the entire field could be viewed simultaneously...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28528003/acinetobacter-baumannii-k11-and-k83-capsular-polysaccharides-have-the-same-6-deoxy-l-talose-containing-pentasaccharide-k-units-but-different-linkages-between-the-k-units
#3
Johanna J Kenyon, Alexander S Shashkov, Sof'ya N Senchenkova, Mikhail M Shneider, Bin Liu, Anastasiya V Popova, Nikolay P Arbatsky, Konstantin A Miroshnikov, Lei Wang, Yuriy A Knirel, Ruth M Hall
Acinetobacter baumannii produces a variety of capsular polysaccharides (CPS) via genes located at the chromosomal K locus and some KL gene clusters include genes for the synthesis of specific sugars. The structures of K11 and K83 CPS produced by isolates LUH5545 and LUH5538, which carry related KL11a and KL83 gene clusters, respectively, were established by sugar analysis and one- and two-dimensional (1)H and (13)C NMR spectroscopy. Both CPS contain L-rhamnose (L-Rha) and 6-deoxy-L-talose (L-6dTal), and both KL gene clusters include genes for dTDP-L-Rhap synthesis and a tle (talose epimerase) gene encoding an epimerase that converts dTDP-L-Rhap to dTDP-L-6dTalp...
May 17, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28526913/mapping-qtls-controlling-kernel-dimensions-in-a-wheat-inter-varietal-ril-mapping-population
#4
Ruiru Cheng, Zhongxin Kong, Liwei Zhang, Quan Xie, Haiyan Jia, Dong Yu, Yulong Huang, Zhengqiang Ma
Seven kernel dimension QTLs were identified in wheat, and kernel thickness was found to be the most important dimension for grain weight improvement. Kernel morphology and weight of wheat (Triticum aestivum L.) affect both yield and quality; however, the genetic basis of these traits and their interactions has not been fully understood. In this study, to investigate the genetic factors affecting kernel morphology and the association of kernel morphology traits with kernel weight, kernel length (KL), width (KW) and thickness (KT) were evaluated, together with hundred-grain weight (HGW), in a recombinant inbred line population derived from Nanda2419 × Wangshuibai, with data from five trials (two different locations over 3 years)...
May 19, 2017: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/28515448/involvement-of-vascular-aldosterone-synthase-in-phosphate-induced-osteogenic-transformation-of-vascular-smooth-muscle-cells
#5
Ioana Alesutan, Jakob Voelkl, Martina Feger, Denise V Kratschmar, Tatsiana Castor, Sobuj Mia, Michael Sacherer, Robert Viereck, Oliver Borst, Christina Leibrock, Meinrad Gawaz, Makoto Kuro-O, Stefan Pilz, Andreas Tomaschitz, Alex Odermatt, Burkert Pieske, Carsten A Wagner, Florian Lang
Vascular calcification resulting from hyperphosphatemia is a major determinant of mortality in chronic kidney disease (CKD). Vascular calcification is driven by aldosterone-sensitive osteogenic transformation of vascular smooth muscle cells (VSMCs). We show that even in absence of exogenous aldosterone, silencing and pharmacological inhibition (spironolactone, eplerenone) of the mineralocorticoid receptor (MR) ameliorated phosphate-induced osteo-/chondrogenic transformation of primary human aortic smooth muscle cells (HAoSMCs)...
May 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28509870/sound-power-estimation-for-beam-and-plate-structures-using-polyvinylidene-fluoride-films-as-sensors
#6
Qibo Mao, Haibing Zhong
The theory for calculation and/or measurement of sound power based on the classical velocity-based radiation mode (V-mode) approach is well established for planar structures. However, the current V-mode theory is limited in scope in that it can only be applied to conventional motion sensors (i.e., accelerometers). In this study, in order to estimate the sound power of vibrating beam and plate structure by using polyvinylidene fluoride (PVDF) films as sensors, a PVDF-based radiation mode (C-mode) approach concept is introduced to determine the sound power radiation from the output signals of PVDF films of the vibrating structure...
May 16, 2017: Sensors
https://www.readbyqxmd.com/read/28499161/determination-of-the-henry-s-law-constants-of-low-volatility-compounds-via-the-measured-air-phase-transfer-coefficients
#7
Huan-Ping Chao, Jiunn-Fwu Lee, Cary T Chiou
Accurate Henry's law constants (H) are unavailable for the majority of organic pollutants, especially those having a low volatility. A novel kinetics-based experimental method is introduced to determine H for a wide range of low-H compounds. The method consists of measuring independently the water-to-air transfer coefficient (KL) and the associated air-phase transfer coefficient (kG) of a low-H chemical (solute) in water when KL ≅ kGH prevails according to the two-film theory. The kG for a solute is obtained via a developed gas-dynamic equation that relates kG to the solute molecular weight and the solute-vapor escaping efficiency (β) through a boundary air layer...
May 1, 2017: Water Research
https://www.readbyqxmd.com/read/28489417/a-semiquantitative-ct-grading-system-for-evaluating-therapeutic-response-in-pulmonary-alveolar-proteinosis
#8
Sayoko Tokura, Masanori Akira, Tomohisa Okuma, Ryushi Tazawa, Toru Arai, Chikatoshi Sugimoto, Akiko Matsumuro, Masaki Hirose, Toshinori Takada, Koh Nakata, Haruyuki Ishii, Yasunori Kasahara, Masayuki Hojo, Shinya Ohkouchi, Yoshiko Tsuchihashi, Masanori Yokoba, Ryosuke Eda, Hideaki Nakayama, Takahito Nei, Konosuke Morimoto, Yasuyuki Nasuhara, Masahito Ebina, Toshio Ichiwata, Koichiro Tatsumi, Etsuro Yamaguchi, Yoshikazu Inoue
RATIONALE: A useful semi-quantitative method of using CT images to evaluate therapeutic response in pulmonary alveolar proteinosis (PAP) has not been established, although the extent score or grading score of ground-glass opacities has been used. OBJECTIVES: The purpose of this study was to establish a semi-quantitative method for evaluating therapeutic response in PAP. METHODS: CT scans obtained within one month before and after the therapy from 32 patients with PAP who participated in a multicenter phase 2 trial of GM-CSF inhalation therapy were evaluated by two chest radiologists independently...
May 10, 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28482926/structural-predictors-of-response-to-intra-articular-steroid-injection-in-symptomatic-knee-osteoarthritis
#9
Nasimah Maricar, Matthew J Parkes, Michael J Callaghan, Charles E Hutchinson, Andrew D Gait, Richard Hodgson, David T Felson, Terence W O'Neill
BACKGROUND: The aim was to examine if structural factors could affect response to intra-articular steroid injections (IASI) in knee osteoarthritis (OA). METHOD: Persons with painful knee OA participated in an open-label trial of IASI where radiographic joint space narrowing (JSN) and Kellgren-Lawrence (KL) grade, whole-organ magnetic resonance imaging (MRI) scores (WORMS) and quantitative assessment of synovial tissue volume (STV) were assessed on baseline images...
May 8, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28473841/contrasting-hydraulic-architectures-of-scots-pine-and-sessile-oak-at-their-southernmost-distribution-limits
#10
Elisabet Martínez-Sancho, Isabel Dorado-Liñán, Uwe G Hacke, Hannes Seidel, Annette Menzel
Many temperate European tree species have their southernmost distribution limits in the Mediterranean Basin. The projected climatic conditions, particularly an increase in dryness, might induce an altitudinal and latitudinal retreat at their southernmost distribution limit. Therefore, characterizing the morphological and physiological variability of temperate tree species under dry conditions is essential to understand species' responses to expected climate change. In this study, we compared branch-level hydraulic traits of four Scots pine and four sessile oak natural stands located at the western and central Mediterranean Basin to assess their adjustment to water limiting conditions...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28470832/subjective-crepitus-as-a-risk-factor-for-incident-symptomatic-knee-osteoarthritis-data-from-the-osteoarthritis-initiative
#11
Grace H Lo, Michael T Strayhorn, Jeffrey B Driban, Lori Lyn Price, Charles B Eaton, Timothy E McAlindon
Objective Subjective crepitus is the complaint of hearing grating, cracking or popping sounds in and/or around a joint. We aimed to evaluate whether there is an association between crepitus and incident symptomatic knee osteoarthritis (SOA) in the Osteoarthritis Initiative (OAI), a multicenter longitudinal U.S. cohort. Methods Knees without baseline SOA were included. Crepitus frequency was assessed using a question from the Knee Injury and Osteoarthritis Outcome Score (KOOS) at baseline, 12-, 24-, and 36-month visits...
May 4, 2017: Arthritis Care & Research
https://www.readbyqxmd.com/read/28469527/histologic-chorioamnionitis-amniotic-fluid-interleukin-6-krebs-von-den-lungen-6-and-transforming-growth-factor-%C3%AE-1-for-the-development-of-neonatal-bronchopulmonary-dysplasia
#12
Hisako Matsumura, Hiroyuki Ichiba, Satoshi Ohnishi, Mika Saito, Haruo Shintaku
BACKGROUND: Chorioamnionitis (CAM) is an important risk factor for the development of bronchopulmonary dysplasia (BPD) in preterm infants. OBJECTIVES: To evaluate the effects of CAM on the development of BPD using interleukin 6 (IL-6), Krebs von den Lungen 6 (KL-6), and transforming growth factor β1 (TGF-β1) in the amniotic fluid as markers for inflammation, lung injury, and fibrosis/remodeling, respectively. METHODS: Amniotic fluid concentrations of IL-6, KL-6, and TGF-β1 were measured with enzyme-linked immunosorbent assay or electro-chemiluminescence immunoassay...
2017: Japanese Clinical Medicine
https://www.readbyqxmd.com/read/28467516/baseline-serum-syndecan-4-predicts-prognosis-after-the-onset-of-acute-exacerbation-of-idiopathic-interstitial-pneumonia
#13
Yuki Sato, Yoshinori Tanino, Xintao Wang, Takefumi Nikaido, Suguru Sato, Kenichi Misa, Ryuichi Togawa, Charles W Frevert, Mitsuru Munakata
BACKGROUND: Patients with idiopathic interstitial pneumonia can experience acute respiratory worsening, also known as acute exacerbation, with a large deterioration on prognosis. The precise mechanism remains unclear; however, syndecan-4 may be involved. Syndecan-4, a transmembrane heparan sulfate proteoglycan expressed in a variety of cells (e.g., epithelial cells, macrophages, fibroblasts, etc.), performs various biological roles by binding to several proteins through its heparan sulfate glycosaminoglycan side chains...
2017: PloS One
https://www.readbyqxmd.com/read/28464801/surfactant-protein-d-predicts-prognosis-of-interstitial-lung-disease-induced-by-anticancer-agents-in-advanced-lung-cancer-a-case-control-study
#14
Kota Nakamura, Motoyasu Kato, Takehito Shukuya, Keita Mori, Yasuhito Sekimoto, Hiroaki Ihara, Ryota Kanemaru, Ryo Ko, Rina Shibayama, Ken Tajima, Ryo Koyama, Naoko Shimada, Osamu Nagashima, Fumiyuki Takahashi, Shinichi Sasaki, Kazuhisa Takahashi
BACKGROUND: Interstitial lung diseases induced by anticancer agents (ILD-AA) are rare adverse effects of anticancer therapy. However, prognostic biomarkers for ILD-AA have not been identified in patients with advanced lung cancer. Our aim was to analyze the association between serum biomarkers sialylated carbohydrate antigen Krebs von den Lungen-6 (KL-6) and surfactant protein D (SP-D), and clinical characteristics in patients diagnosed with ILD-AA. METHODS: Between April 2011 and March 2016, 1224 advanced lung cancer patients received cytotoxic agents and epidermal growth factor receptor tyrosine kinase inhibitors at Juntendo University Hospital and Juntendo University Urayasu Hospital...
May 2, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28462768/emergency-physician-disaster-deployment-issues-to-consider-and-a-model-policy
#15
Christopher A Kahn, Kristi L Koenig, Carl H Schultz
Disaster responders are frequently emergency physicians (EPs). Effective response is enhanced by the strong support of home institutions and clear policies for backfill of regular duties. A group of disaster medicine responders and researchers worked with an academic department of emergency medicine to create a policy that addresses concerns of deploying physicians, colleagues remaining at the home institution, and administrators. This article describes the process and content of this policy development work...
May 2, 2017: Prehospital and Disaster Medicine
https://www.readbyqxmd.com/read/28460415/articular-cartilage-surface-roughness-as-an-imaging-based-morphological-indicator-of-osteoarthritis-a-preliminary-investigation-of-osteoarthritis-initiative-subjects
#16
Michael D Newton, Jeffrey Osborne, Karisssa Gawronski, Kevin C Baker, Tristan Maerz
Current imaging-based morphometric indicators of osteoarthritis (OA) using whole-compartment mean cartilage thickness (MCT) and volume changes can be insensitive to mild degenerative changes of articular cartilage (AC) due to areas of adjacent thickening and thinning. The purpose of this preliminary study was to evaluate cartilage thickness-based surface roughness as a morphometric indicator of OA. 3D magnetic resonance imaging (MRI) datasets were collected from osteoarthritis initiative (OAI) subjects with Kellgren-Lawrence (KL) OA grades of 0, 2, and 4 (n = 10/group)...
April 29, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28452782/sulfide-emissions-in-sewer-networks-focus-on-liquid-to-gas-mass-transfer-coefficient
#17
Lucie Carrera, Fanny Springer, Gislain Lipeme-Kouyi, Pierre Buffiere
H2S emission dynamics in sewers are conditioned by the mass transfer coefficient at the interface. This work aims at measuring the variation of the mass transfer coefficient with the hydraulic characteristics, with the objective of estimating H2S emission in gravity pipes, and collecting data to establish models independent of the system geometry. The ratio between the H2S and O2 mass transfer coefficient was assessed in an 8 L mixed reactor under different experimental conditions. Then, oxygen mass transfer measurements were performed in a 10 m long gravity pipe...
April 2017: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://www.readbyqxmd.com/read/28451870/association-between-serum-and-synovial-fluid-dickkopf-1-levels-with-radiographic-severity-in-primary-knee-osteoarthritis-patients
#18
Theologis Thomas, Efstathopoulos Nikolaos, Nikolaou Vasileios, Charikopoulos Ioannis, Papapavlos Ioannis, Kokkoris Panayiotis, Papatheodorou Athanasios, Nasiri-Ansari Narjes, Kassi Eva
Primary knee osteoarthritis (OA) contributes to disability among middle-aged and elderly people. Dickkopf-1 (Dkk-1) and sclerostin are inhibitors of Wnt/β-catenin signaling pathway implicated in regulation of cartilage homeostasis and bone formation, respectively. We aim to investigate the association between the serum(s) and synovial fluid (SF) Dkk-1 and sclerostin levels and disease severity in patients with primary knee OA. Forty patients aged 56-87 years with primary knee OA and 20 healthy individuals were recruited...
April 27, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28451794/comparison-of-long-term-prognosis-and-relapse-of-dermatomyositis-complicated-with-interstitial-pneumonia-according-to-autoantibodies-anti-aminoacyl-trna-synthetase-antibodies-versus-anti-melanoma-differentiation-associated-gene-5-antibody
#19
Kentaro Isoda, Takuya Kotani, Tohru Takeuchi, Takao Kiboshi, Kenichiro Hata, Takaaki Ishida, Kenichiro Otani, Takao Kamimori, Hiroshi Fujiwara, Takeshi Shoda, Shigeki Makino
The aim of this study was to investigate long-term prognosis and relapse of dermatomyositis complicated with interstitial pneumonia (DMIP) according to anti-aminoacyl tRNA synthetase (ARS) antibodies and anti-melanoma differentiation-associated gene 5 (MDA5) antibody. This retrospective study comprised 36 patients with DMIP who were divided into the anti-ARS antibody-positive group (ARS+) (n = 12), anti MDA5 antibody-positive group (MDA5+) (n = 11), double-negative group (ARS-/MDA5-) (n = 11), and double-positive group (ARS+/MDA5+) (n = 1)...
April 27, 2017: Rheumatology International
https://www.readbyqxmd.com/read/28440060/a-practical-approach-in-bioreactor-scale-up-and-process-transfer-using-a-combination-of-constant-p-v-and-vvm-as-the-criterion
#20
Sen Xu, Linda Hoshan, Rubin Jiang, Balrina Gupta, Eric Brodean, Kristin O'Neill, T Craig Seamans, John Bowers, Hao Chen
Bioreactor scale-up is a critical step in the production of therapeutic proteins such as monoclonal antibodies (MAbs). With the scale-up criterion such as similar power input per volume or O2 volumetric mass transfer coefficient (kL a), adequate oxygen supply and cell growth can be largely achieved. However, CO2 stripping in the growth phase is often inadequate. This could cascade down to increased base addition and osmolality, as well as residual lactate increase and compromised production and product quality...
April 25, 2017: Biotechnology Progress
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