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https://www.readbyqxmd.com/read/28735157/effects-of-adhesions-of-amorphous-fe-and-al-hydroxides-on-surface-charge-and-adsorption-of-k-and-cd-2-on-rice-roots
#1
Zhao-Dong Liu, Hai-Cui Wang, Qin Zhou, Ren-Kou Xu
Iron (Fe) and aluminum (Al) hydroxides in variable charge soils attached to rice roots may affect surface-charge properties and subsequently the adsorption and uptake of nutrients and toxic metals by the roots. Adhesion of amorphous Fe and Al hydroxides onto rice roots and their effects on zeta potential of roots and adsorption of potassium (K(+)) and cadmium (Cd(2+)) by roots were investigated. Rice roots adsorbed more Al hydroxide than Fe hydroxide because of the greater positive charge on Al hydroxide. Adhesion of Fe and Al hydroxides decreased the negative charge on rice roots, and a greater effect of the Al hydroxide...
July 20, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28735078/revisiting-the-role-of-the-insula-and-smoking-cue-reactivity-in-relapse-a-replication-and-extension-of-neuroimaging-findings
#2
A C Janes, J M Gilman, M Radoman, G Pachas, M Fava, A E Evins
INTRODUCTION: The ability to direct smoking cessation treatment based on neuroscientific findings holds incredible promise. However, there is a strong need for consistency across studies to confirm neurobiological targets. While our prior work implicated enhanced insula reactivity to smoking cues in tobacco smoking relapse vulnerability, this finding has not been confirmed. METHOD: Using functional magnetic resonance imaging (fMRI), we evaluated the pre-cessation brain reactivity to smoking vs...
July 12, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28734876/t-cell-depletion-as-an-alternative-approach-for-patients-55-years-undergoing-allogeneic-stem-cell-transplantation-as-curative-therapy-for-hematologic-malignancies
#3
Ann A Jakubowski, Erica Petrlik, Molly Maloy, Patrick Hilden, Esperanza Papadopoulos, James W Young, Farid Boulad, Hugo Castro-Malaspina, Roni Tamari, Parastoo B Dahi, Jenna Goldberg, Guenther Koehne, Miguel-Angel Perales, Craig S Sauter, Richard J O'Reilly, Sergio Giralt
T cell depleted allogeneic hematopoietic stem cell transplantation (TCD HSCT) is curative treatment for hematologic malignancies in adults, shown to reduce graft vs. host disease (GVHD) without increased relapse. We retrospectively reviewed a single center, 11yr experience of 214 patients ≥55yrs to determine tolerability and efficacy in the older adult. The majority (70%) had myeloid diseases and most acute leukemias were in remission. Median age was 61 yrs with related and unrelated donors > 8/10 HLA matched...
July 19, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28734351/capillary-electrophoresis-tandem-mass-spectrometry-as-a-highly-selective-tool-for-the-compositional-and-site-specific-assessment-of-multiple-peptide-deamidation
#4
Elena Dominguez-Vega, Thomas De Vijlder, Edwin P Romijn, Govert W Somsen
Site-specific mapping of multiple deamidations in peptides is a challenging analytical task. In this work, capillary electrophoresis-tandem mass spectrometry (CE-MS/MS) is presented as a high-resolution tool for the detailed characterization of these subtle modifications in peptides. The 4.5-kDa peptide drug TRI-1144, which contains five closely-positioned potential deamidation sites, was selected as model compound. TRI-1144 was exposed to acidic conditions and/or elevated temperatures for 1-14 h. Stressed samples were analyzed using a background electrolyte (BGE) of 150 mM ammonium formate (pH 6...
August 22, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28734261/abundant-plankton-sized-microplastic-particles-in-shelf-waters-of-the-northern-gulf-of-mexico
#5
Rosana Di Mauro, Matthew J Kupchik, Mark C Benfield
Accumulation of marine debris is a global problem that affects the oceans on multiple scales. The majority of floating marine debris is composed of microplastics: plastic particles up to 5 mm in diameter. With similar sizes and appearances to natural food items, these small fragments pose potential risks to many marine organisms including zooplankton and zooplanktivores. Semi-enclosed seas are reported to have high concentrations of microplastics, however, the distribution and concentration of microplastics in one such system, the Gulf of Mexico, remains unknown...
July 19, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28734091/prediction-of-alcohol-use-disorder-using-personality-disorder-traits-a-twin-study
#6
Tom Rosenström, Fartein Ask Torvik, Eivind Ystrom, Nikolai Olavi Czajkowski, Nathan A Gillespie, Steven H Aggen, Robert F Krueger, Kenneth S Kendler, Ted Reichborn-Kjennerud
BACKGROUND AND AIMS: The DSM-IV Personality Disorders (PDs) are comorbid with Alcohol Use Disorder (AUD) and with each other. It remains unclear which PD criteria are most likely to drive onset and recurrence of AUD and which are merely confounded with those criteria. We determine which individual PD criteria predict AUD and the degree of underlying genetic and/or environmental etiology. DESIGN: A prospective observational twin study. SETTING: Norway 1999-2011...
July 22, 2017: Addiction
https://www.readbyqxmd.com/read/28734073/differential-calcium-sensitivity-in-nav-1-5-mixed-syndrome-mutants
#7
Mena Abdelsayed, Alban-Elouen Baruteau, Karen Gibbs, Shubhayan Sanatani, Andrew D Krahn, Vincent Probst, Peter C Ruben
INTRODUCTION: Inherited arrhythmias may arise from mutations in the SCN5a gene, which encodes the cardiac voltage-gated sodium channel, NaV 1.5. Mutants in NaV 1.5 result in Brugada Syndrome (BrS1), Long-QT Syndrome (LQT3), or mixed syndromes (an overlap of BrS1/LQT3). Exercise is a potential arrhythmogenic trigger in mixed syndromes. We sought to determine the effects of elevated cytosolic calcium, common during exercise, in mixed syndrome NaV 1.5 mutants. METHODS: We used whole-cell patch-clamp to assess the biophysical properties of NaV 1...
July 22, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28734067/range-instability-leads-to-cytonuclear-discordance-in-a-morphologically-cryptic-ground-squirrel-species-complex
#8
Mark A Phuong, Ke Bi, Craig Moritz
The processes responsible for cytonuclear discordance frequently remain unclear. Here, we employed an exon capture dataset and demographic methods to test hypotheses generated by species distribution models to examine how contrasting histories of range stability vs. fluctuation have caused cytonuclear concordance and discordance in ground squirrel lineages from the Otospermophilus beecheyi species complex. Previous studies in O. beecheyi revealed three morphologically cryptic and highly divergent mitochondrial DNA lineages (named the Northern, Central, and Southern lineages based on geography) with only the Northern lineage exhibiting concordant divergence for nuclear genes...
July 22, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28733933/immunohistochemical-analysis-of-h3k27me3-demonstrates-global-reduction-in-group-a-childhood-posterior-fossa-ependymoma-and-is-a-powerful-predictor-of-outcome
#9
Pooja Panwalkar, Jonathan Clark, Vijay Ramaswamy, Debra Hawes, Fusheng Yang, Christopher Dunham, Stephen Yip, Juliette Hukin, Yilun Sun, Matthew J Schipper, Lukas Chavez, Ashley Margol, Melike Pekmezci, Chan Chung, Adam Banda, Jill M Bayliss, Sarah J Curry, Mariarita Santi, Fausto J Rodriguez, Matija Snuderl, Matthias A Karajannis, Amanda M Saratsis, Craig M Horbinski, Anne-Sophie Carret, Beverly Wilson, Donna Johnston, Lucie Lafay-Cousin, Shayna Zelcer, David Eisenstat, Marianna Silva, Katrin Scheinemann, Nada Jabado, P Daniel McNeely, Marcel Kool, Stefan M Pfister, Michael D Taylor, Cynthia Hawkins, Andrey Korshunov, Alexander R Judkins, Sriram Venneti
Posterior fossa ependymomas (EPN_PF) in children comprise two morphologically identical, but biologically distinct tumor entities. Group-A (EPN_PFA) tumors have a poor prognosis and require intensive therapy. In contrast, group-B tumors (EPN_PFB) exhibit excellent prognosis and the current consensus opinion recommends future clinical trials to test the possibility of treatment de-escalation in these patients. Therefore, distinguishing these two tumor subtypes is critical. EPN_PFA and EPN_PFB can be distinguished based on DNA methylation signatures, but these assays are not routinely available...
July 21, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28733925/polypropelene-mesh-properties-and-type-of-anchoring-do-not-influence-strength-of-parietal-ingrowth
#10
S Harsløf, N Zinther, T Harsløf, C Danielsen, P Wara, H Friis-Andersen
PURPOSE: In laparoscopic ventral hernia repair, parietal ingrowth of the mesh is of crucial importance. Until significant ingrowth occurs integrity of the repair depends solely on mesh overlap and anchoring device. Relatively few studies have addressed the effect of mesh properties and anchoring device on long-term parietal ingrowth. METHODS: In 20 sheep, using laparoscopy, we inserted two different polypropylene-based meshes, Physiomesh™ and Ventralight™ ST, anchored with Protack™, SecureStrap™, or Glubran™...
July 21, 2017: Langenbeck's Archives of Surgery
https://www.readbyqxmd.com/read/28733867/gaseous-mediators-in-gastrointestinal-mucosal-defense-and-injury
#11
REVIEW
John L Wallace, Angela Ianaro, Gilberto de Nucci
Of the numerous gaseous substances that can act as signaling molecules, the best characterized are nitric oxide, carbon monoxide and hydrogen sulfide. Contributions of each of these low molecular weight substances, alone or in combination, to maintenance of gastrointestinal mucosal integrity have been established. There is considerable overlap in the actions of these gases in modulating mucosal defense and responses to injury, and in some instances they act in a cooperative manner. Each also play important roles in regulating inflammatory and repair processes throughout the gastrointestinal tract...
July 21, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28733863/population-level-coordination-of-pigment-response-in-individual-cyanobacterial-cells-under-altered-nitrogen-levels
#12
Jaclyn Murton, Aparna Nagarajan, Amelia Y Nguyen, Michelle Liberton, Harmony A Hancock, Himadri B Pakrasi, Jerilyn A Timlin
Cyanobacterial phycobilisome (PBS) pigment-protein complexes harvest light and transfer the energy to reaction centers. Previous ensemble studies have shown that cyanobacteria respond to changes in nutrient availability by modifying the structure of PBS complexes, but this process has not been visualized for individual pigments at the single-cell level due to spectral overlap. We characterized the response of four key photosynthetic pigments to nitrogen depletion and repletion at the subcellular level in individual, live Synechocystis sp...
July 21, 2017: Photosynthesis Research
https://www.readbyqxmd.com/read/28733835/competition-and-coexistence-in-a-small-carnivore-guild
#13
Jacques de Satgé, Kristine Teichman, Bogdan Cristescu
The potential for strong competition among small sympatric carnivores results in a need for coexistence strategies whereby competitors partition along spatial, temporal and dietary axes as a means to reduce ecological overlaps. We determined spatial and temporal partitioning patterns of a guild of small African carnivores: the African wildcat Felis silvestris lybica, grey mongoose Galerella pulverulenta, small-spotted genet Genetta genetta, striped polecat Ictonyx striatus, and the yellow mongoose Cynictis penicillata...
July 21, 2017: Oecologia
https://www.readbyqxmd.com/read/28733770/distinct-and-flexible-rates-of-online-control
#14
John de Grosbois, Luc Tremblay
Elliott et al. (Hum Mov Sci 10:393-418, 1991) proposed a pseudocontinuous model of online control whereby overlapping corrections lead to the appearance of smooth kinematic profiles in the presence of online feedback. More recently, it was also proposed that online control is not a singular process [see Elliott et al. (Psychol Bull 136(6):1023-1044, 2010)]. However, support for contemporary models of online control were based on methodologies that were not designed to be sensitive to different online control sub-processes...
July 21, 2017: Psychological Research
https://www.readbyqxmd.com/read/28733471/helicobacter-species-are-potent-drivers-of-colonic-t-cell-responses-in-homeostasis-and-inflammation
#15
Jiani N Chai, Yangqing Peng, Sunaina Rengarajan, Benjamin D Solomon, Teresa L Ai, Zeli Shen, Justin S A Perry, Kathryn A Knoop, Takeshi Tanoue, Seiko Narushima, Kenya Honda, Charles O Elson, Rodney D Newberry, Thaddeus S Stappenbeck, Andrew L Kau, Daniel A Peterson, James G Fox, Chyi-Song Hsieh
Specific gut commensal bacteria improve host health by eliciting mutualistic regulatory T (Treg) cell responses. However, the bacteria that induce effector T (Teff) cells during inflammation are unclear. We addressed this by analyzing bacterial-reactive T cell receptor (TCR) transgenic cells and TCR repertoires in a murine colitis model. Unexpectedly, we found that mucosal-associated Helicobacter species triggered both Treg cell responses during homeostasis and Teff cell responses during colitis, as suggested by an increased overlap between the Teff/Treg TCR repertoires with colitis...
July 21, 2017: Science Immunology
https://www.readbyqxmd.com/read/28733466/the-reliability-of-the-american-community-survey-for-injury-surveillance
#16
Nathaniel Bell, Bo Cai
BACKGROUND: To evaluate the reliability and predictability of 49 socioeconomic indicators constructed from the annual and multiyear American Community Survey (ACS) data cycles for monitoring injury inequalities across the USA. METHODS: Cross-sectional analysis of the 2006-2013 annual and multiyear county-level ACS data cycles. Indicator reliability was assessed using the margin of error and coefficient of variation (CV). Overlapping multiyear data cycles were assessed for statistical dependence in the estimates...
August 2017: Injury Prevention: Journal of the International Society for Child and Adolescent Injury Prevention
https://www.readbyqxmd.com/read/28733070/spatial-relationship-of-sites-for-atrial-fibrillation-drivers-and-atrial-tachycardia-in-patients-with-both-arrhythmias
#17
Tina Baykaner, Junaid A B Zaman, Albert J Rogers, Rachita Navara, Mahmood AlHusseini, Ryan T Borne, Shirley Park, Paul J Wang, David E Krummen, William H Sauer, Sanjiv M Narayan
INTRODUCTION: Atrial fibrillation (AF) often converts to and from atrial tachycardia (AT), but it is undefined if these rhythms are mechanistically related in such patients. We tested the hypothesis that critical sites for AT may be related to regional AF sources in patients with both rhythms, by mapping their locations and response to ablation on transitions to and from AF. METHODS: From 219 patients undergoing spatial mapping of AF prior to ablation at 3 centers, we enrolled 26 patients in whom AF converted to AT by ablation (n=19) or spontaneously (n=7; left atrial size 42±6cm, 38% persistent AF)...
July 14, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28732406/quantifying-deforestation-and-forest-degradation-with-thermal-response
#18
Hua Lin, Yajun Chen, Qinghai Song, Peili Fu, James Cleverly, Vincenzo Magliulo, Beverly E Law, Christopher M Gough, Lukas Hörtnagl, Filippo Di Gennaro, Giorgio Matteucci, Leonardo Montagnani, Pierpaolo Duce, Changliang Shao, Tomomichi Kato, Damien Bonal, Eugénie Paul-Limoges, Jason Beringer, John Grace, Zexin Fan
Deforestation and forest degradation cause the deterioration of resources and ecosystem services. However, there are still no operational indicators to measure forest status, especially for forest degradation. In the present study, we analysed the thermal response number (TRN, calculated by daily total net radiation divided by daily temperature range) of 163 sites including mature forest, disturbed forest, planted forest, shrubland, grassland, savanna vegetation and cropland. TRN generally increased with latitude, however the regression of TRN against latitude differed among vegetation types...
July 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28732360/a-systematic-review-of-malignancy-associated-hemophagocytic-lymphohistiocytosis-that-needs-more-attentions
#19
REVIEW
Hongluan Wang, Lixia Xiong, Weiping Tang, Ying Zhou, Fei Li
As an infrequent but potentially life-threatening hyperinflammatory syndrome, hemophagocytic lymphohistiocytosis (HLH) is clinically characterized with prolonged fever, hepatosplenomegaly, cytopenia, hypertriglyceridemia, hyperferritinemia and hemophagocytosis in bone marrow, liver, spleen or lymph nodes. Malignancy-associated HLH (M-HLH), one type of acquired HLH, usually presents variable overlaps of symptoms with other types of HLH, thus resulting in higher incidence of misdiagnosis and mortality. In recent years, with the increasing awareness to this disease, the diagnosis and management of HLH have gained more and more attention, and improvements have been made accordingly...
July 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28731910/new-answers-to-old-conundrums-what-antibodies-exosomes-and-inflammasomes-bring-to-the-conversation-canadian-national-transplant-research-program-international-summit-report
#20
Mélanie Dieudé, Lori J West, Daniel A Muruve, Lakshman Gunaratman, Thalachallour Mohanakumar, Emmanuel Zorn, Christopher W Cairo, Darren H Freed, Kirk R Schultz, Robert L Fairchild, Marie-Josée Hébert
Antibody-mediated injury is a major cause of allograft dysfunction and loss. Antibodies to ABH(O) blood group antigens are classical mediators of ABO-incompatible (ABOi) graft rejection, while donor-specific anti-HLA antibodies and, more recently, autoantibodies are appreciated as important contributors to allograft inflammation and dysfunction. In August 2016, the International Summit of the Canadian National Transplant Research Program focused on recent advances in the field of antibody-mediated rejection...
July 21, 2017: Transplantation
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