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https://www.readbyqxmd.com/read/28821074/dope-dyeing-of-lyocell-fiber-with-nmmo-based-carbon-black-dispersion
#1
Liping Zhang, Weize Sun, Dan Xu, Min Li, Christiana Agbo, Shaohai Fu
NMMO-based carbon black (CB) dispersion was prepared and its properties as well as its compatibility with lyocell spinning solution were further investigated. Modified lignosulfonate (SP) was verified to be the preeminent dispersant for the preparation of NMMO-based CB dispersion with mass ratio of SP to CB 20% and water to NMMO 13%. The compatibility of NMMO-based CB dispersion with lyocell spinning solution had close relation with dispersant structure and CB content. Mass ratio of CB to cellulose affects the mechanical properties, color strength and crystallinity of lyocell fiber...
October 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28819004/acute-oxygen-sensing-by-the-carotid-body-from-mitochondria-to-plasma-membrane
#2
Andy J Chang
Maintaining oxygen homeostasis is crucial to the survival of animals. Mammals respond acutely to changes in blood oxygen levels by modulating cardiopulmonary function. The major sensor of blood oxygen that regulates breathing is the carotid body (CB), a small chemosensory organ located at the carotid bifurcation. When arterial blood oxygen levels drop in hypoxia, neuroendocrine cells in the CB called glomus cells are activated to signal to afferent nerves that project to the brainstem. The mechanism by which hypoxia stimulates CB sensory activity has been the subject of many studies over the last 90 years...
August 17, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28817403/primary-bone-lymphoma-exhibits-a-favorable-prognosis-and-distinct-gene-expression-signatures-resembling-diffuse-large-b-cell-lymphoma-derived-from-centrocytes-in-the-germinal-center
#3
Xin Li, Zijun Y Xu-Monette, Shuhua Yi, Bouthaina S Dabaja, Ganiraju C Manyam, Jason Westin, Nathan Fowler, Roberto N Miranda, Mingzhi Zhang, Judith A Ferry, L Jeffrey Medeiros, Nancy L Harris, Ken H Young
Primary bone (PB) diffuse large B-cell lymphoma (DLBCL) is rare and has a favorable prognosis, but the underlying biological mechanisms remain unknown. In this study we analyzed the clinicopathologic features of 160 patients with PB-DLBCL in comparison with 499 nonosseous DLBCL. Compared with patients with nonosseous DLBCL and secondary involvement of bone by DLBCL, PB-DLBCL patients less frequently had elderly age, B-symptoms, elevated serum lactate dehydrogenase levels, and high International Prognostic Index at diagnosis, more frequently had germinal center (GC) subtype (approximately 90%) and complete remission, and had significantly better survival...
August 16, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28815220/severity-and-outcomes-of-acute-alcoholic-pancreatitis-in-cannabis-users
#4
Hemant Goyal, Kelsey Guerreso, Betsy Smith, Kaitlin Harper, Sheetal Patel, Akash Patel, Puja Parikh
BACKGROUND: Cannabis is the most commonly and widely used illicit drug in the world and is also the most commonly used drug of abuse in alcohol drinkers. Experimental studies have shown conflicting results of the effects of cannabis on the severity of acute pancreatitis (AP). The purpose of this study is to ascertain the clinical effects of simultaneous alcohol and cannabis use on severity at presentation and outcomes of acute alcoholic pancreatitis (AAP). METHODS: A retrospective review was conducted on the patients discharged with principle or secondary diagnosis of AP using ICD-9 & ICD-10 codes during the time period from January 2006 to December 2015 at a large community-based hospital in Central Georgia...
2017: Translational Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28812329/acid-labile-acyclic-cucurbit-n-uril-molecular-containers-for-controlled-release
#5
Dake Mao, Yajun Liang, Yamin Liu, Xianhao Zhou, Jiaqi Ma, Jia Liu, Biao Jiang, Da Ma
Stimuli responsive molecular containers are of great importance for controlled drug delivery and other biomedical applications. Here, we report a new type of acid labile acyclic cucurbit[n]uril (CB[n]) molecular containers, which can degrade and release the encapsulated cargo with accelerated rates under mildly acidic conditions (pH 5.5-6.5). These containers retain the excellent recognition property of CB[n] type hosts. Cell culture study demonstrated that the cellular uptake of cargos could be fine-tuned by complexation with different containers...
August 15, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28810477/feasibility-randomised-controlled-trial-of-a-self-help-acceptance-and-commitment-therapy-intervention-for-grief-and-psychological-distress-in-carers-of-palliative-care-patients
#6
Esther L Davis, Frank P Deane, Geoffrey Cb Lyons, Gregory D Barclay, Joan Bourne, Vivienne Connolly
We tested the feasibility and preliminary effectiveness of an acceptance and commitment therapy self-help intervention for grief and psychological distress in carers of patients in palliative care. Carers were randomised to the control group, which received treatment as usual, or the intervention group, which received treatment as usual plus an acceptance and commitment therapy-based self-help booklet and telephone support call. Questionnaires were completed at baseline, 1-month post-allocation and 6 months post-loss...
June 1, 2017: Journal of Health Psychology
https://www.readbyqxmd.com/read/28809147/flavobacterium-flaviflagrans-sp-nov-a-bacterium-of-the-family-flavobacteriaceae-isolated-from-forest-soil
#7
Ram Hari Dahal, Dhiraj Kumar Chaudhary, Jaisoo Kim
Two strains of bacteria designated CB-3T and CB-31 were isolated from Kyonggi University forest soil. Cells were aerobic, Gram-stain-negative, oxidase-positive, non-motile, non-spore-forming, rod-shaped and yellow-pigmented. They were able to grow at 15-42 °C, pH 5.5-9.5 and with 0-1.5 % (w/v) NaCl concentration. Flexirubin-type pigments were absent. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strains CB-3T and CB-31 formed a lineage within the family Flavobacteriaceae of the phylum Bacteroidetes that was distinct from various species of the genus Flavobacterium, including Flavobacterium humicola UCM-46T (99...
August 15, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28808435/double-cone-of-eigendirections-in-optically-active-ethylenediammonium-selenate-crystals
#8
Alexander T Martin, Shane M Nichols, Sichao Li, Melissa Tan, Bart Kahr
Circular birefringence (CB) is generally responsible for only a small perturbation to the state of light polarization in crystals that also exhibit linear birefringence (LB). As such, the magnetoelectric tensor of gyration, which gives rise to CB and optical activity, is less well determined than the electric permittivity tensor in optical models of the Mueller matrix. To visualize the effect of the magnetoelectric tensor on polarimetric measurements, reported here are experimental mappings of the Mueller matrix and of the CB in a new chiral crystal with accidental null LB at an accessible optical frequency...
August 1, 2017: Journal of Applied Crystallography
https://www.readbyqxmd.com/read/28808320/carotid-body-mediated-chemoreflex-drive-in-the-setting-of-low-and-high-output-heart-failure
#9
Rodrigo Del Rio, David C Andrade, Camilo Toledo, Hugo S Diaz, Claudia Lucero, Alexis Arce-Alvarez, Noah J Marcus, Harold D Schultz
Enhanced carotid body (CB) chemoreflex function is strongly related to cardiorespiratory disorders and disease progression in heart failure (HF). The mechanisms underlying CB sensitization during HF are not fully understood, however previous work indicates blood flow per se can affect CB function. Then, we hypothesized that the CB-mediated chemoreflex drive will be enhanced only in low output HF but not in high output HF. Myocardial infarcted rats and aorto-caval fistulated rats were used as a low output HF model (MI-CHF) and as a high output HF model (AV-CHF), respectively...
August 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28805893/board-invited-review-the-purebred-crossbred-correlation-in-pigs-a-review-of-theory-estimates-and-implications
#10
Y C J Wientjes, M P L Calus
Pig and poultry production relies on crossbreeding of purebred populations to produce production animals. In those breeding schemes, selection takes place within the purebred population to improve crossbred performance (CB performance). The genetic correlation between purebred performance (PB performance) and CB performance () is, however, lower than unity for many traits. When is low, the use of CB performance in selection is required to achieve sizable genetic progress. The objectives of this paper were to describe the different components and importance of , and to review existing literature that report estimates in pigs...
August 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28804845/laboratory-testing-for-von-willebrand-factor-collagen-binding-vwf-cb
#11
Emmanuel J Favaloro, Soma Mohammed
Von Willebrand disease (VWD) is reportedly the most common inherited bleeding disorder and can also arise as an acquired syndrome (AVWS). These disorders develop due to defects and/or deficiency of the plasma protein von Willebrand factor (VWF). Laboratory testing for the VWF-related disorders requires assessment of both VWF level and VWF activity, the latter requiring multiple assays because of the many functions carried out by VWF to help prevent bleeding. This chapter describes several protocols for assessment of VWF activity by means of VWF collagen binding (VWF:CB)...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28804843/diagnosis-or-exclusion-of-von-willebrand-disease-using-laboratory-testing
#12
Emmanuel J Favaloro
von Willebrand disease (VWD) is a common bleeding disorder diagnosed based on clinical features and following laboratory testing. VWD is due to deficiencies or defects in the plasma protein von Willebrand factor (VWF), a large adhesive protein with multiple activities. Laboratory testing therefore centers on assessment of VWF protein level using VWF antigen (VWF:Ag), as well as assays that measure VWF activity, most notably platelet glycoprotein (GP) Ib and collagen binding (VWF:CB) activities. Decreases in VWF:Ag and VWF activities, as well as the pattern of such changes, help define VWD and its type...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28803924/differential-regulation-of-the-tlr4-signalling-pathway-in-post-mortem-prefrontal-cortex-and-cerebellum-in-chronic-schizophrenia-relationship-with-sp-transcription-factors
#13
Karina S MacDowell, Raquel Pinacho, Juan C Leza, Joan Costa, Belén Ramos, Borja García-Bueno
Alterations in innate immunity may underlie the pathophysiology of schizophrenia (SZ). Toll-like receptor-4 (TLR4) is a master element of innate immunity. The specificity proteins (SPs), transcription factors recently implicated in SZ, are putative regulatory agents of this. This work was aimed at describing alterations in the TLR4 signalling pathway in postmortem brain prefrontal cortex (PFC) and cerebellum (CB) of 16 chronic SZ patients and 14 controls. The possible association of TLR4 pathway with SP1 and SP4 and SZ negative symptomatology is explored...
August 10, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28801992/associations-between-behaviours-that-challenge-in-adults-with-intellectual-disability-parental-perceptions-and-parental-mental-health
#14
Jane Waite, John Rose, Lucy Wilde, Kate Eden, Chris Stinton, Jo Moss, Chris Oliver
OBJECTIVES: This study examined parental perceptions of behaviours that challenge (CB) in their adult children with intellectual disability (ID), and explored whether perceptions mediated associations between CB and parental psychological distress. DESIGN: A within-group correlational design was employed. METHODS: Sixty-five parents reported on individuals with genetic syndromes and ID who had chronic CB. Parents completed the Illness Perception Questionnaire-Revised (IPQ-R) adapted to measure perceptions of self-injury, aggression or property destruction, alongside assessments of parental locus of control, attributions about behaviour, parental psychological distress, and CB...
August 12, 2017: British Journal of Clinical Psychology
https://www.readbyqxmd.com/read/28801972/brief-report-a-differential-transcriptomic-profile-of-ex-vivo-expanded-adult-human-hematopoietic-stem-cells-empowers-them-for-engraftment-better-than-their-surface-phenotype
#15
Nikoletta Psatha, Grigorios Georgolopoulos, Susan Phelps, Thalia Papayannopoulou
Transplantation of small cord blood (CB) units, or of autologous ex vivo-genetically modified adult hematopoietic stem cells (HSC), face the common challenge of suboptimal HSC doses for infusion and impaired engraftment of the transplanted cells. Ex vivo expansion of HSCs, using either cell-based coculture approaches or especially small molecules have been successfully tested mainly in CB and in prolonged cultures. Here, we explored whether innovative combinations of small molecules can sufficiently, after short culture, expand adult HSCs while retaining their functionality in vivo...
August 11, 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28801916/adenosine-and-dopamine-oppositely-modulate-a-hyperpolarization-activated-current-ih-in-chemosensory-neurons-of-the-rat-carotid-body-in-co-culture
#16
Min Zhang, Cathy Vollmer, Colin A Nurse
Adenosine and dopamine (DA) act as neurotransmitters or neuromodulators at the carotid body (CB) chemosensory synapse, however, their mechanisms of action are not fully understood. Using a functional co-culture model of rat CB chemoreceptor (type I) cell clusters and juxtaposed afferent petrosal neurons (PNs), we tested the hypothesis that adenosine and DA act postsynaptically to modulate a hyperpolarization-activated, cyclic nucleotide-gated (HCN) cation current (Ih ). In whole-cell recordings from hypoxia-responsive PNs, cAMP mimetics enhanced Ih whereas the HCN blocker ZD7288 (2 μm) reversibly inhibited Ih ...
August 12, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28798087/epidemiology-and-impact-of-chronic-bronchitis-in-chronic-obstructive-pulmonary-disease
#17
Lies Lahousse, Leen J M Seys, Guy F Joos, Oscar H Franco, Bruno H Stricker, Guy G Brusselle
Research on the association between chronic bronchitis and chronic obstructive pulmonary disease (COPD) exacerbations has led to discordant results. Furthermore, the impact of chronic bronchitis on mortality in COPD subjects is unclear.Within the Rotterdam Study, a population-based cohort study of subjects aged ≥45 years, chronic bronchitis was defined as having a productive cough for ≥3 months per year for two consecutive years. Linear, logistic regression and Cox proportional hazard models were adjusted for age, sex and pack-years...
August 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28797779/long-term-outcomes-of-cord-blood-transplantation-from-an-hla-identical-sibling-for-patients-with-bone-marrow-failure-disorders-a-report-from-eurocord-cord-blood-committee-cbc-ctiwp-and-severe-aplastic-anemia-working-party-saawp-of-the-european-society-of-blood
#18
Simona Pagliuca, Régis Peffault de Latour, Fernanda Volt, Franco Locatelli, Marco Zecca, Jean-Hugues Dalle, Patrizia Comoli, Kim Vettenranta, Miguel Angel Diaz, Or Reuven, Yves Bertrand, Cristina Diaz de Heredia, Arnon Nagler, Ardeshir Ghavamzadeh, Sabina Sufliarska, Sarah Lawson, Chantal Kenzey, Vanderson Rocha, Carlo Dufour, Eliane Gluckman, Jakob Passweg, Annalisa Ruggeri
Cord blood transplantation (CBT) from HLA-identical sibling is an attractive option for patients with bone-marrow-failures syndromes (BMF), due to the low risk of graft-versus-host disease (GVHD) and the absence of risk to the donor. We analyzed outcomes of 117 patients with inherited or acquired BMF, who received CBT from a related HLA-identical donor in EBMT centers, between 1988 and 2014. Ninety-seven patients had inherited and 20 patients acquired BMF. Eighty-two patients received a single cord blood (CB) unit, whereas 35 patients received a combination of CB and bone marrow (BM) cells from the same donor...
August 7, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28797754/fabrication-of-metal-free-two-dimensional-two-dimensional-homojunction-photocatalyst-using-various-carbon-nitride-nanosheets-as-building-blocks
#19
Boyong Ye, Xiaoxue Han, Mengdie Yan, Huanhuan Zhang, Fengna Xi, Xiaoping Dong, Jiyang Liu
Semiconductor photocatalysis currently suffered three main problems, low solar energy utilization, high photo-generated charge recombination rate and the heavy metal ions release by the photo-corrosion. Herein, we developed a visible-light-driven homojunction photocatalyst with the metal-free two-dimensional (2D) graphitic carbon nitride nanosheets (CNNS). By employing liquid exfoliation and chemical blowing approaches, we obtained two kinds of CNNS materials (le-CNNS and cb-CNNS) with different band structures, and subsequently fabricated the homojunction photocatalyst...
August 2, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28795750/supramolecular-alleviation-of-cardiotoxicity-of-a-small-molecule-kinase-inhibitor
#20
Xue Yang, Qiaoxian Huang, David Bardelang, Chunming Wang, Simon M Y Lee, Ruibing Wang
Small-molecule kinase inhibitors (SMKIs) have been widely used in the treatment of a variety of cancers due to their clinically demonstrated efficacy. However, the use of some SMKIs, such as sorafenib (SO), has been plagued by their cardiotoxicity that has been frequently observed in treated patients. Herein we report that the encapsulation of SO by a synthetic receptor cucurbit[7]uril (CB[7]) alleviated the inherent cardiotoxicity of SO, as demonstrated in an in vivo zebrafish model. Moreover, the anti-cancer activity of SO was well preserved, upon its encapsulation by CB[7], as demonstrated by both in vitro and in vivo cancer/angiogenesis models...
August 10, 2017: Organic & Biomolecular Chemistry
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