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https://www.readbyqxmd.com/read/28645169/heterodimerization-of-arabidopsis-calcium-proton-exchangers-contributes-to-regulation-of-guard-cell-dynamics-and-plant-defense-responses
#1
Bradleigh Hocking, Simon J Conn, Murli Manohar, Bo Xu, Asmini Athman, Matthew A Stancombe, Alex R Webb, Kendal D Hirschi, Matthew Gilliham
Arabidopsis thaliana cation exchangers (CAX1 and CAX3) are closely related tonoplast-localized calcium/proton (Ca2+/H+) antiporters that contribute to cellular Ca2+ homeostasis. CAX1 and CAX3 were previously shown to interact in yeast; however, the function of this complex in plants has remained elusive. Here, we demonstrate that expression of CAX1 and CAX3 occurs in guard cells. Additionally, CAX1 and CAX3 are co-expressed in mesophyll tissue in response to wounding or flg22 treatment, due to the induction of CAX3 expression...
June 22, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28645137/-to-take-or-not-to-take-the-association-between-perceived-addiction-risk-expected-analgesic-response-and-likelihood-of-trying-novel-pain-relievers-in-self-identified-chronic-pain-patients
#2
D Andrew Tompkins, Andrew S Huhn, Patrick S Johnson, Michael T Smith, Eric C Strain, Robert R Edwards, Matthew W Johnson
BACKGROUND AND AIMS: Probability discounting refers to the effect of outcome uncertainty on decision making. Using probability discounting, we examined the degree to which self-identified chronic pain patients (CPP) were likely to try a novel analgesic medication given increasing addiction risk. We postulated that propensity for opioid misuse, trait impulsivity, and previous opioid experience would be positively associated with likelihood of risky medication use. DESIGN: This cross-sectional online study determined state/trait associations with addiction-related medication decisions in CPP...
June 23, 2017: Addiction
https://www.readbyqxmd.com/read/28645136/childhood-traumatic-experiences-and-the-association-with-marijuana-and-cocaine-use-in-adolescence-through-adulthood
#3
Joy D Scheidell, Kelly Quinn, Susan P McGorray, B Christopher Frueh, Nisha N Beharie, Linda B Cottler, Maria R Khan
BACKGROUND AND AIMS: Examination of longitudinal relationships between childhood traumatic experiences and drug use across the life-course at the national level, with control of confounding by other forms of trauma, is needed. We aimed to estimate the prevalence of nine typologies of childhood traumas and the cumulative number experienced, correlation between traumas, and associations between individual and cumulative number of traumas with drug use during adolescence, emerging adulthood, and adulthood...
June 23, 2017: Addiction
https://www.readbyqxmd.com/read/28645065/cross-validation-of-short-forms-of-the-screener-and-opioid-assessment-for-patients-with-pain-revised-soapp-r
#4
Matthew D Finkelman, Robert N Jamison, Ronald J Kulich, Stephen F Butler, William C Jackson, Niels Smits, Scott G Weiner
BACKGROUND: The Screener and Opioid Assessment for Patients with Pain-Revised (SOAPP-R) is a 24-item assessment designed to assist in the prediction of aberrant drug-related behavior (ADB) among patients with chronic pain. Recent work has created shorter versions of the SOAPP-R, including a static 12-item short form and two computer-based methods (curtailment and stochastic curtailment) that monitor assessments in progress. The purpose of this study was to cross-validate these shorter versions in two new populations...
June 13, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28644959/generation-and-characterization-of-aptamers-targeting-factor-xia
#5
R S Woodruff, I Ivanov, I M Verhamme, M-F Sun, D Gailani, B A Sullenger
BACKGROUND: The plasma protease factor XIa (FXIa) has become a target of interest for therapeutics designed to prevent or treat thrombotic disorders. METHODS: We used a solution-based, directed evolution approach called systematic evolution of ligands by exponential enrichment (SELEX) to isolate RNA aptamers that target the FXIa catalytic domain. RESULTS: Two aptamers, designated 11.16 and 12.7, were identified that bound to previously identified anion binding and serpin bindings sites on the FXIa catalytic domain...
June 9, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28644892/r-modafinil-exerts-weak-effects-on-spatial-memory-acquisition-and-dentate-gyrus-synaptic-plasticity
#6
Bharanidharan Shanmugasundaram, Yogesh D Aher, Jana Aradska, Marija Ilic, Daniel Daba Feyissa, Predrag Kalaba, Nilima Y Aher, Vladimir Dragacevic, Babak Saber Marouf, Thierry Langer, Harald H Sitte, Harald Hoeger, Gert Lubec, Volker Korz
Modafinil is a wake promoting drug approved for clinical use and also has cognitive enhancing properties. Its enantiomer R-Modafinil (R-MO) is not well studied in regard to cognitive enhancing properties. Hence we studied its effect in a spatial memory paradigm and its possible effects on dentate gyrus long-term potentiation (DG-LTP). Clinically relevant doses of R-MO, vehicle dimethyl sulfoxide (DMSO) or saline were administered for three days during the hole-board test and in in vivo DG-LTP. Synaptic levels of dopamine receptors D1R, D2R, dopamine transporter (DAT), and its phosphorylated form (ph-DAT) in DG tissue 4 h after LTP induction were quantified by western blot analysis...
2017: PloS One
https://www.readbyqxmd.com/read/28644883/effects-of-dietary-inclusion-of-high-concentrations-of-crude-glycerin-on-meat-quality-and-fatty-acid-profile-of-feedlot-fed-nellore-bulls
#7
Eric H C B van Cleef, André P D'Áurea, Vanessa R Fávaro, Flavia O S van Cleef, Robson S Barducci, Marco T C Almeida, Otávio R Machado Neto, Jane M B Ezequiel
Crude glycerin, the main by-product of biodiesel production, can replace dietary energy sources, such as corn. The objective of this study was to evaluate the inclusion of up to 30% of crude glycerin in dry matter (DM) of the total diets, and its effects on meat quality parameters of feedlot Nellore bulls. Thirty animals (227.7 ± 23.8 kg body weight; 18 months old) were housed in individual pens and fed 5 experimental diets, containing 0, 7.5, 15, 22.5 or 30% crude glycerin (DM basis). After 103 d (21 d adaptation) animals were slaughtered and the Longissimus muscle was collected...
2017: PloS One
https://www.readbyqxmd.com/read/28644860/time-dependent-genetic-analysis-links-field-and-controlled-environment-phenotypes-in-the-model-c4-grass-setaria
#8
Max J Feldman, Rachel E Paul, Darshi Banan, Jennifer F Barrett, Jose Sebastian, Muh-Ching Yee, Hui Jiang, Alexander E Lipka, Thomas P Brutnell, José R Dinneny, Andrew D B Leakey, Ivan Baxter
Vertical growth of plants is a dynamic process that is influenced by genetic and environmental factors and has a pronounced effect on overall plant architecture and biomass composition. We have performed six controlled growth trials of an interspecific Setaria italica x Setaria viridis recombinant inbred line population to assess how the genetic architecture of plant height is influenced by developmental queues, water availability and planting density. The non-destructive nature of plant height measurements has enabled us to monitor height throughout the plant life cycle in both field and controlled environments...
June 23, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28644819/quantifying-the-accuracy-and-precision-of-a-novel-real-time-6-degree-of-freedom-kilovoltage-intrafraction-monitoring-kim-target-tracking-system
#9
J-H Kim, D T Nguyen, C-Y Huang, T Fuangrod, V Caillet, R O'Brien, P Poulsen, J Booth, P Keall
Target rotation can considerably impact the delivered radiotherapy dose depending on the tumour shape. More accurate tumour pose during radiotherapy treatment can be acquired through tracking in 6 degrees-of-freedom (6 DoF) rather than in translation only. A novel real-time 6 DoF kilovoltage intrafraction monitoring (KIM) target tracking system has recently been developed. In this study, we experimentally evaluated the accuracy and precision of the 6 DoF KIM implementation. Real-time 6 DoF KIM motion measurements were compared against the ground truth motion retrospectively derived from kV/MV triangulation for a range of lung and prostate tumour motion trajectories as well as for various static poses using a phantom...
June 23, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28644774/cd33-splicing-polymorphism-determines-gemtuzumab-ozogamicin-response-in-de-novo-acute-myeloid-leukemia-report-from-randomized-phase-iii-children-s-oncology-group-trial-aaml0531
#10
Jatinder K Lamba, Lata Chauhan, Miyoung Shin, Michael R Loken, Jessica A Pollard, Yi-Cheng Wang, Rhonda E Ries, Richard Aplenc, Betsy A Hirsch, Susana C Raimondi, Roland B Walter, Irwin D Bernstein, Alan S Gamis, Todd A Alonzo, Soheil Meshinchi
Purpose Gemtuzumab ozogamicin (GO), a CD33-targeted immunoconjugate, is a re-emerging therapy for acute myeloid leukemia (AML). CD33 single nucleotide polymorphism rs12459419 C>T in the splice enhancer region regulates the expression of an alternatively spliced CD33 isoform lacking exon2 (D2-CD33), thus eliminating the CD33 IgV domain, which is the antibody-binding site for GO, as well as diagnostic immunophenotypic panels. We aimed to determine the impact of the genotype of this splicing polymorphism in patients with AML treated with GO-containing chemotherapy...
June 23, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28644724/modeling-long-term-effects-attributed-to-nitrogen-dioxide-no2-and-sulfur-dioxide-so2-exposure-on-asthma-morbidity-in-a-nationwide-cohort-in-israel
#11
N Greenberg, R S Carel, E Derazne, A Tiktinsky, D Tzur, B A Portnov
Studies have provided extensive documentation that acutely elevated environmental exposures contribute to chronic health problems. However, only attention has been paid to the effects of modificate of exposure assessment methods in environmental health investigations, leading to uncertainty and gaps in our understanding of exposure- and dose-response relationships. The goal of the present study was to evaluate whether average or peak concentration exerts a greater influence on asthma outcome, and which of the exposure models may better explain various physiological responses generated by nitrogen dioxide (NO2) or sulfur dioxide (SO2) air pollutants...
June 23, 2017: Journal of Toxicology and Environmental Health. Part A
https://www.readbyqxmd.com/read/28644693/supplemental-oxygen-in-interstitial-lung-disease-an-art-in-need-of-science
#12
Kerri A Johannson, Sachin R Pendharkar, Kirk Mathison, Charlene D Fell, Jordan A Guenette, Meena Kalluri, Martin Kolb, Christopher J Ryerson
Interstitial lung disease (ILD) comprises a large and heterogeneous group of disorders that often lead to progressive fibrosis and premature death. Oxygen supplementation is typically used in advanced lung disease patients with resting hypoxemia; however, there is a paucity of evidence guiding the use of supplemental oxygen in ILD, and significant heterogeneity in clinical practice. It remains unclear whether supplemental oxygen improves clinically meaningful outcomes, and the role of ambulatory oxygen supplementation in isolated exertional hypoxemia is particularly controversial...
June 23, 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28644674/constraints-on-oscillation-parameters-from-%C3%AE-_-e-appearance-and-%C3%AE-_-%C3%AE-disappearance-in-nova
#13
P Adamson, L Aliaga, D Ambrose, N Anfimov, A Antoshkin, E Arrieta-Diaz, K Augsten, A Aurisano, C Backhouse, M Baird, B A Bambah, K Bays, B Behera, S Bending, R Bernstein, V Bhatnagar, B Bhuyan, J Bian, T Blackburn, A Bolshakova, C Bromberg, J Brown, G Brunetti, N Buchanan, A Butkevich, V Bychkov, M Campbell, E Catano-Mur, S Childress, B C Choudhary, B Chowdhury, T E Coan, J A B Coelho, M Colo, J Cooper, L Corwin, L Cremonesi, D Cronin-Hennessy, G S Davies, J P Davies, P F Derwent, R Dharmapalan, P Ding, Z Djurcic, E C Dukes, H Duyang, S Edayath, R Ehrlich, G J Feldman, M J Frank, M Gabrielyan, H R Gallagher, S Germani, T Ghosh, A Giri, R A Gomes, M C Goodman, V Grichine, R Group, D Grover, B Guo, A Habig, J Hartnell, R Hatcher, A Hatzikoutelis, K Heller, A Himmel, A Holin, J Hylen, F Jediny, M Judah, G K Kafka, D Kalra, S M S Kasahara, S Kasetti, R Keloth, L Kolupaeva, S Kotelnikov, I Kourbanis, A Kreymer, A Kumar, S Kurbanov, K Lang, W M Lee, S Lin, J Liu, M Lokajicek, J Lozier, S Luchuk, K Maan, S Magill, W A Mann, M L Marshak, K Matera, V Matveev, D P Méndez, M D Messier, H Meyer, T Miao, W H Miller, S R Mishra, R Mohanta, A Moren, L Mualem, M Muether, S Mufson, R Murphy, J Musser, J K Nelson, R Nichol, E Niner, A Norman, T Nosek, Y Oksuzian, A Olshevskiy, T Olson, J Paley, P Pandey, R B Patterson, G Pawloski, D Pershey, O Petrova, R Petti, S Phan-Budd, R K Plunkett, R Poling, B Potukuchi, C Principato, F Psihas, A Radovic, R A Rameika, B Rebel, B Reed, D Rocco, P Rojas, V Ryabov, K Sachdev, P Sail, O Samoylov, M C Sanchez, R Schroeter, J Sepulveda-Quiroz, P Shanahan, A Sheshukov, J Singh, J Singh, P Singh, V Singh, J Smolik, N Solomey, E Song, A Sousa, K Soustruznik, M Strait, L Suter, R L Talaga, M C Tamsett, P Tas, R B Thayyullathil, J Thomas, X Tian, S C Tognini, J Tripathi, A Tsaris, J Urheim, P Vahle, J Vasel, L Vinton, A Vold, T Vrba, B Wang, M Wetstein, D Whittington, S G Wojcicki, J Wolcott, N Yadav, S Yang, J Zalesak, B Zamorano, R Zwaska
Results are reported from an improved measurement of ν_{μ}→ν_{e} transitions by the NOvA experiment. Using an exposure equivalent to 6.05×10^{20} protons on target, 33 ν_{e} candidates are observed with a background of 8.2±0.8 (syst.). Combined with the latest NOvA ν_{μ} disappearance data and external constraints from reactor experiments on sin^{2}2θ_{13}, the hypothesis of inverted mass hierarchy with θ_{23} in the lower octant is disfavored at greater than 93% C.L. for all values of δ_{CP}.
June 9, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28644643/first-demonstration-of-a-scintillating-xenon-bubble-chamber-for-detecting-dark-matter-and-coherent-elastic-neutrino-nucleus-scattering
#14
D Baxter, C J Chen, M Crisler, T Cwiok, C E Dahl, A Grimsted, J Gupta, M Jin, R Puig, D Temples, J Zhang
A 30-g xenon bubble chamber, operated at Northwestern University in June and November 2016, has for the first time observed simultaneous bubble nucleation and scintillation by nuclear recoils in a superheated liquid. This chamber is instrumented with a CCD camera for near-IR bubble imaging, a solar-blind photomultiplier tube to detect 175-nm xenon scintillation light, and a piezoelectric acoustic transducer to detect the ultrasonic emission from a growing bubble. The time of nucleation determined from the acoustic signal is used to correlate specific scintillation pulses with bubble-nucleating events...
June 9, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28644622/single-analyzer-neutral-loss-scans-in-a-linear-quadrupole-ion-trap-using-orthogonal-double-resonance-excitation
#15
Dalton T Snyder, R Graham Cooks
In this follow-up paper to our previous work on single analyzer precursor ion scans in a linear quadrupole ion trap (Snyder, D. T.; Cooks, R. G.; "Single analyzer precursor ion scans in a linear quadrupole ion trap using orthogonal double resonance excitation", J. Am. Soc. Mass Spectrom. accepted), we now report the development of single analyzer neutral loss scans in a linear quadrupole ion trap using orthogonal double resonance excitation. Methodologically, there are three key differences between single analyzer precursor ion scans and neutral loss scans under constant radiofrequency (rf) conditions: 1) in the latter experiment both excitation and ejection frequencies must be scanned, whereas in the former the ejection frequency is fixed, 2) the need to maintain a constant neutral loss while incrementing both precursor and product ion masses - complicated by the complex relationship between secular frequency and mass - requires use of two simultaneous frequency scans, both linear in mass, and 3) because the ejection frequency is scanned, a third ac signal occurring between the ac excitation and ac ejection frequency scans must also be applied and scanned in order to reject artifact peaks caused by ejection of unfragmented precursor ions...
June 23, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28644607/electrochemical-exfoliation-of-graphite-in-aqueous-sodium-halide-electrolytes-towards-low-oxygen-content-graphene-for-energy-and-environmental-applications
#16
Jose Maria Munuera, Juan Ignacio Paredes, Marina Enterria, Ana Pagán, Silvia Villar-Rodil, Manuel Fernando R Pereira, J I Martins, José L Figueiredo, Jose Luis Cenis, Amelia Martinez-Alonso, Juan Manuel D Tascon
Graphene and graphene-based materials have shown great promise in many technological applications, but their large-scale production and processing by simple and cost-effective means still constitute significant issues in the path of their widespread implementation. Here, we investigate a straightforward method for the preparation of a ready-to-use and low oxygen content graphene material that is based on electrochemical (anodic) delamination of graphite in aqueous medium with sodium halides as the electrolyte...
June 23, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28644590/mutyh-associated-polyposis-the-irish-experience
#17
T P McVeigh, M Duff, C Carroll, R O'Shea, L Bradley, M Farrell, D J Gallagher, C Clabby, A J Green
MUTYH is involved in DNA damage repair. Bi-allelic MUTYH mutations predispose to polyposis and gastrointestinal malignancies, distinct genetically from autosomal dominant familial adenomatous polyposis coli. Two common European MUTYH mutations account for 90% of MUTYH-associated polyposis (MAP). We aimed to examine the incidence of MAP in Ireland. A retrospective cohort study was undertaken. Patients undergoing MUTYH testing from 2003-2016 were identified by searching electronic databases using terms "MUTYH" and "MYH"...
December 12, 2016: Irish Medical Journal
https://www.readbyqxmd.com/read/28644570/clinical-and-genetic-analysis-of-patients-with-cherubism
#18
R A Machado, H A R Pontes, F R Pires, H M Silveira, A Bufalino, R Carlos, F M Tuji, D B M Alves, A R Santos-Silva, M A Lopes, H M Capistrano, R D Coletta, F P Fonseca
OBJECTIVE: To describe the clinical and genetic features of patients with cherubism. MATERIAL AND METHODS: A descriptive analysis of 14 cases from 9 different families was carried out. Clinicopathological, imaging and follow-up data were retrieved from patients' medical files and correlated with the genetic profile of each patient. Genomic DNA isolated from buccal mucosa cells was subjected to direct sequencing analysis of the SH3BP2 gene. RESULTS: Females were more affected than males (8:6), and the mean age at diagnosis was 8...
June 23, 2017: Oral Diseases
https://www.readbyqxmd.com/read/28644563/gas-phase-dissociation-study-of-erythrinian-alkaloids-by-electrospray-ionization-mass-spectrometry-and-computational-methods
#19
T Guaratini, L G P Feitosa, D B Silva, N P Lopes, J L C Lopes, R Vessecchi
Alkaloids from plants of the genus Erythrina display important biological activities, including anxiolytic action. Characterization of these alkaloids by mass spectrometry (MS) has contributed to the construction of a spectral library, has improved understanding of their structures, and has supported the proposal of fragmentation mechanisms in light of density functional calculations (DFT). In this study, we have used low- and high-resolution MS(n) analyses to investigate the fragmentation patterns of erythrinian alkaloids; we have employed the B3LYP/6-31+G(d,p) model to obtain their reactive sites...
June 23, 2017: Journal of Mass Spectrometry: JMS
https://www.readbyqxmd.com/read/28644546/-18-f-fluoromisonidazole-uptake-in-advanced-stage-non-small-cell-lung-cancer-a-voxel-by-voxel-pet-kinetics-study
#20
Daniel R McGowan, Ruth E Macpherson, Sara L Hackett, Dan Liu, Fergus V Gleeson, W Gillies McKenna, Geoff S Higgins, John D Fenwick
PURPOSE: To determine the relative abilities of compartment models to describe time-courses of 18F-fluoromisonidazole (FMISO) uptake in tumor voxels of patients with non-small cell lung cancer (NSCLC) imaged using dynamic positron emission tomography. Also to use fits of the best-performing model to investigate changes in fitted rate-constants with distance from the tumor edge. METHODS: Reversible and irreversible two- and three-tissue compartment models were fitted to 24,662 individual voxel time activity curves (TACs) obtained from tumors in 9 patients, each imaged twice...
June 23, 2017: Medical Physics
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