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https://www.readbyqxmd.com/read/28110411/development-of-the-siope-dipg-network-registry-and-imaging-repository-a-collaborative-effort-to-optimize-research-into-a-rare-and-lethal-disease
#1
Sophie E M Veldhuijzen van Zanten, Joshua Baugh, Brooklyn Chaney, Dennis De Jongh, Esther Sanchez Aliaga, Frederik Barkhof, Johan Noltes, Ruben De Wolf, Jet Van Dijk, Antonio Cannarozzo, Carin M Damen-Korbijn, Jan A Lieverst, Niclas Colditz, Marion Hoffmann, Monika Warmuth-Metz, Brigitte Bison, David T W Jones, Dominik Sturm, Gerrit H Gielen, Chris Jones, Esther Hulleman, Raphael Calmon, David Castel, Pascale Varlet, Géraldine Giraud, Irene Slavc, Stefaan Van Gool, Sandra Jacobs, Filip Jadrijevic-Cvrlje, David Sumerauer, Karsten Nysom, Virve Pentikainen, Sanna-Maria Kivivuori, Pierre Leblond, Natasha Entz-Werle, Andre O von Bueren, Antonis Kattamis, Darren R Hargrave, Péter Hauser, Miklos Garami, Halldora K Thorarinsdottir, Jane Pears, Lorenza Gandola, Giedre Rutkauskiene, Geert O Janssens, Ingrid K Torsvik, Marta Perek-Polnik, Maria J Gil-da-Costa, Olga Zheludkova, Liudmila Shats, Ladislav Deak, Lidija Kitanovski, Ofelia Cruz, Andres Morales La Madrid, Stefan Holm, Nicolas Gerber, Rejin Kebudi, Richard Grundy, Enrique Lopez-Aguilar, Marta Zapata-Tarres, John Emmerik, Tim Hayden, Simon Bailey, Veronica Biassoni, Maura Massimino, Jacques Grill, William P Vandertop, Gertjan J L Kaspers, Maryam Fouladi, Christof M Kramm, Dannis G van Vuurden
Diffuse intrinsic pontine glioma (DIPG) is a rare and deadly childhood malignancy. After 40 years of mostly single-center, often non-randomized trials with variable patient inclusions, there has been no improvement in survival. It is therefore time for international collaboration in DIPG research, to provide new hope for children, parents and medical professionals fighting DIPG. In a first step towards collaboration, in 2011, a network of biologists and clinicians working in the field of DIPG was established within the European Society for Paediatric Oncology (SIOPE) Brain Tumour Group: the SIOPE DIPG Network...
January 21, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28110389/a-novel-lectin-from-artocarpus-lingnanensis-induces-proliferation-and-th1-th2-cytokine-secretion-through-cd45-signaling-pathway-in-human-t-lymphocytes
#2
Bo Cui, Lu Li, Qiyan Zeng, Faquan Lin, Lijun Yin, Liejun Liao, Min Huang, Jingping Wang
Lectins are carbohydrate-binding proteins and have been used for purification and characterization of glycoproteins. In this study, a novel 58.9-kDa tetrameric lectin from Artocarpus lingnanensis seeds was purified, characterized, and its mitogenic potential was evaluated. The hemagglutination inhibition assay indicated that Artocarpus lingnanensis lectin (ALL) showed specificity toward galactose. ALL was effectively purified in a single-step using affinity chromatography on a galactose-Sepharose column. ALL showed pH optima between 5...
January 21, 2017: Journal of Natural Medicines
https://www.readbyqxmd.com/read/28110385/the-prevalence-of-anticitrullinated-protein-antibodies-increases-with-age-in-healthy-individuals-at-risk-for-rheumatoid-arthritis
#3
D Alpizar-Rodriguez, Laure Brulhart, Ruediger B Mueller, Burkhard Möller, Jean Dudler, Adrian Ciurea, Ulrich A Walker, Ines Von Mühlenen, Diego Kyburz, Pascal Zufferey, Michael Mahler, Sylvette Bas, Danielle Gascon, Céline Lamacchia, Pascale Roux-Lombard, Kim Lauper, Michael J Nissen, Delphine S Courvoisier, Cem Gabay, Axel Finckh
Transition from genetic risk to the development of systemic autoimmunity associated with rheumatoid arthritis (RA) is considered a key step for the development of RA and often referred to as the immune onset of the disease. The aim of this study is to identify predictors for the presence of anticitrullinated protein antibodies (ACPA) as a marker of systemic autoimmunity associated with RA in a high-risk population, an ongoing cohort of first-degree relatives of patients with RA. We assessed the presence of ACPA in individuals without clinical evidence of RA...
January 21, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28110374/morphological-description-of-limbal-epithelium-searching-for-stem-cells-crypts-in-the-dog-cat-pig-cow-sheep-and-horse
#4
M Patruno, A Perazzi, T Martinello, A Blaseotto, E Di Iorio, I Iacopetti
The cornea provides protection and transparency to the eye, allowing an optimal sharpness view. In some pathological conditions the cornea is able to regenerate thanks to the presence of a stem cells reservoir present at the level of the transition area between cornea and sclera (limbus). Corneal cell therapies in Veterinary Medicine are really limited due to the lacking of knowledge about the anatomy of the limbal area, the putative presence of stem cells and their identification in domestic species. The aim of this study was to provide an overview of the main distinctive structural features of the sclero-corneal junction and conjunctival-corneal junction areas in some species of veterinary importance, using optic microscope observations of histological sections...
January 21, 2017: Veterinary Research Communications
https://www.readbyqxmd.com/read/28110292/biomartr-genomic-data-retrieval-with-r
#5
Hajk-Georg Drost, Jerzy Paszkowski
MOTIVATION: Retrieval and reproducible functional annotation of genomic data are crucial in biology. However, the current poor usability and transparency of retrieval methods hinders reproducibility. Here we present an open source R package, biomartr, which provides a comprehensive easy-to-use framework for automating data retrieval and functional annotation for meta-genomic approaches. The functions of biomartr achieve a high degree of clarity, transparency and reproducibility of analyses...
January 20, 2017: Bioinformatics
https://www.readbyqxmd.com/read/28110243/a-biomechanical-testing-system-to-determine-micromotion-between-hip-implant-and-femur-accounting-for-deformation-of-the-hip-implant-assessment-of-the-influence-of-rigid-body-assumptions-on-micromotions-measurements
#6
Steven Leuridan, Quentin Goossens, Jorg Roosen, Leonard Pastrav, Kathleen Denis, Michiel Mulier, Wim Desmet, Jos Vander Sloten
BACKGROUND: Accurate pre-clinical evaluation of the initial stability of new cementless hip stems using in vitro micromotion measurements is an important step in the design process to assess the new stem's potential. Several measuring systems, linear variable displacement transducer-based and other, require assuming bone or implant to be rigid to obtain micromotion values or to calculate derived quantities such as relative implant tilting. METHODS: An alternative linear variable displacement transducer-based measuring system not requiring a rigid body assumption was developed in this study...
January 16, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28110233/biobased-alkylphenols-from-lignins-via-a-two-step-pyrolysis-hydrodeoxygenation-approach
#7
P J de Wild, W J J Huijgen, A Kloekhorst, R K Chowdari, H J Heeres
Five technical lignins (three organosolv, Kraft and soda lignin) were depolymerised to produce monomeric biobased aromatics, particularly alkylphenols, by a new two-stage thermochemical approach consisting of dedicated pyrolysis followed by catalytic hydrodeoxygenation (HDO) of the resulting pyrolysis oils. Pyrolysis yielded a mixture of guaiacols, catechols and, optionally, syringols in addition to alkylphenols. HDO with heterogeneous catalysts (Ru/C, CoMo/alumina, phosphided NiMO/C) effectively directed the product mixture towards alkylphenols by, among others, demethoxylation...
January 10, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28110231/effect-of-residence-time-on-two-step-liquefaction-of-rice-straw-in-a-co2-atmosphere-differences-between-subcritical-water-and-supercritical-ethanol
#8
Tianhua Yang, Jian Wang, Bingshuo Li, Xingping Kai, Rundong Li
This study investigated the influence of temperature and residence time on liquefaction of rice straw in subcritical CO2-subcritical water (subCO2-subH2O) and in subcritical CO2-supercritical ethanol (subCO2-scEtOH), considering the final reaction temperatures (270-345°C) and residence times (15 and 30min). Residence time was identified as a crucial parameter in the subCO2-subH2O liquefaction, whereas residence time had a marginal influence on subCO2-scEtOH liquefaction. When reaction conditions were 320°C and 15min, solvents have weak impact on the quality of bio-oil, HHV 28...
January 3, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28110167/chiral-separation-of-new-sulfonamide-derivatives-and-evaluation-of-their-enantioselective-affinity-for-human-carbonic-anhydrase-ii-by-microscale-thermophoresis-and-surface-plasmon-resonance
#9
Tiphaine Rogez-Florent, Catherine Foulon, Anne-Sophie Drucbert, Nadège Schifano, Perrine Six, Stéphanie Devassine, Patrick Depreux, Pierre-Marie Danzé, Laurence Goossens, Cécile Danel, Jean-François Goossens
The aim of this study was to develop a method combining chiral separation and biophysical techniques to evaluate the enantioselective affinity of original sulfonamide derivatives towards their therapeutic target, the human carbonic anhydrase II (hACII). The first step consisted in the preparation of the enantiomers by chromatographic separation. The performances of HPLC and Supercritical Fluid Chromatography (SFC) were studied at the analytical scale by optimization of various experimental conditions using adsorbed polysaccharide chiral stationary phases (amylose AD-H and cellulose OD-H)...
January 9, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28110146/enhanced-arm-swing-alters-interlimb-coordination-during-overground-walking-in-individuals-with-traumatic-brain-injury
#10
Ksenia I Ustinova, Joseph E Langenderfer, Nilanthy Balendra
The current study investigated interlimb coordination in individuals with traumatic brain injury (TBI) during overground walking. The study involved 10 participants with coordination, balance, and gait abnormalities post-TBI, as well as 10 sex- and age-matched healthy control individuals. Participants walked 12m under two experimental conditions: 1) at self-selected comfortable walking speeds; and 2) with instructions to increase the amplitude and out-of-phase coordination of arm swinging. The gait was assessed with a set of spatiotemporal and kinematic parameters including the gait velocity, step length and width, double support time, lateral displacement of the center of mass, the amplitude of horizontal trunk rotation, and angular motions at shoulder and hip joints in sagittal plane...
January 19, 2017: Human Movement Science
https://www.readbyqxmd.com/read/28110053/development-and-optimization-of-an-in-vitro-cultivation-protocol-allows-for-isolation-of-borrelia-miyamotoi-from-patients-with-hard-tick-borne-relapsing-fever
#11
Joris Koetsveld, Nadezhda M Kolyasnikova, Alex Wagemakers, Marina G Toporkova, Denis S Sarksyan, Anneke Oei, Alexander E Platonov, Joppe W Hovius
OBJECTIVES: Borrelia miyamotoi has been shown to infect humans in Eurasia and North America causing hard tick-borne relapsing fever (HTBRF). In vitro cultivation of B. miyamotoi was described recently; however, clinical isolation of relapsing fever Borrelia is cumbersome. Our aim was to develop a straightforward protocol enabling B. miyamotoi isolation directly from blood of patients. METHODS: MKP-F media, with or without anticoagulants, or blood from healthy human volunteers, was spiked with B...
January 18, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28110042/recent-advances-in-compartmentalized-synthetic-architectures-as-drug-carriers-cell-mimics-and-artificial-organelles
#12
REVIEW
M J York-Duran, M Godoy-Gallardo, C Labay, A J Urquhart, T L Andresen, L Hosta-Rigau
Compartmentalization is a key feature of biological cells which conduct their metabolic activity in individual steps isolated in distinct, separated compartments. The creation of architectures containing multiple compartments with a structure that resembles that of a biological cell has generated significant research attention and these assemblies are proposed as candidate materials for a range of biomedical applications. In this Review article, the recent successes of multicompartment architectures as carriers for the delivery of therapeutic cargo or the creation of micro- and nanoreactors that mimic metabolic activities, thus acting as artificial cells or organelles, are discussed...
January 16, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28110032/first-experience-open-small-incision-rectus-sheath-approach-renal-transplant-a-case-series
#13
Stephen H Phillips, Sharon K Hill, Lorie D Lipscomb, Joseph B Africa
BACKGROUND: Prevention of wound complications is an important goal in surgery, and reduction of modifiable risks factors are an important step towards protecting patients from further complications. Renal transplantation has sought to be more inclusive giving access to transplantation to complex patient populations, many of which have an increased risk of complications. Surgical techniques continue to advance and may contribute to reducing complications. We hypothesized that the Anterior Rectus Sheath (ARS) Approach would provide an open transplant with minimal damage and less wound complications, including fluid collections such as lymphoceles, when compared to the conventional technique (CON) with equivocal graft function and survival...
January 18, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28110027/vascular-resection-in-pancreaticoduodenectomy-for-periampullary-cancers-report-of-a-single-center-experience
#14
Mauro Podda, Jessica Thompson, Christoph Thomas Germain Kulli, Iain Stephen Tait
BACKGROUND: Pancreaticoduodenectomy (PD) is the only chance of cure for periampullary cancers. This study aims to evaluate survival and complication rates for PD with additional vascular resection performed for local vascular involvement and compare to standard PD. MATERIALS AND METHODS: A retrospective cohort analysis of a departmental hepato-pancreatobiliary database from 2004-2014 was performed. All patients (n=92) who underwent PD without vascular resection (n=72), with venous resection (n=16), with both arterial and venous resection (n=4) were included in the study...
January 18, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28110015/rapid-assessment-of-estrogenic-compounds-by-cxcl-test-illustrated-by-the-screening-of-the-uv-filter-derivative-benzophenones
#15
Denis Habauzit, Catherine Martin, Gwenneg Kerdivel, Farzad Pakdel
CXCL-test is a method that uses the estrogen-dependent secretion of the natural endogenous chemokine CXCL12 to evaluate the estrogenic activity of molecules. CXCL12 chemokine is involved in the estrogen dependent proliferation of breast cancer cells. Its measure is an indicator of cell proliferation and is used as an alternative test to classical proliferation test. Here we aimed to optimize this test, first to increase the number of tested molecules in a single assay and then to decrease the number of intermediate steps...
January 6, 2017: Chemosphere
https://www.readbyqxmd.com/read/28110014/nanosilver-as-a-disinfectant-in-dental-unit-waterlines-assessment-of-the-physicochemical-transformations-of-the-agnps
#16
Alireza Gitipour, Souhail R Al-Abed, Stephen W Thiel, Kirk G Scheckel, Thabet Tolaymat
Dental unit water lines (DUWL) are susceptible to biofilm development and bacterial growth leading to water contamination, causing health and ecological effects. This study monitors the interactions between a commonly used nanosilver disinfectant (ASAP-AGX-32, an antimicrobial cleaner for dental units, 0.0032% Ag) and biofilm development in DUWL. To simulate the disinfection scenario, an in-house DUWL model was assembled and biofilm accumulation was allowed. Subsequent to biofilm development, the disinfection process was performed according to the manufacturer's instructions...
January 12, 2017: Chemosphere
https://www.readbyqxmd.com/read/28109927/quantitative-assessment-of-myocardial-blood-flow-in-cardiac-sarcoidosis-a-potential-next-step-in-the-further-integration-of-fdg-pet-imaging-management
#17
EDITORIAL
Panithaya Chareonthaitawee, John P Bois, Bernard J Gersh
No abstract text is available yet for this article.
January 11, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28109885/hetero-and-homodimerization-of-arabidopsis-thaliana-arginine-decarboxylase-atadc1-and-atadc2
#18
Israel Maruri-López, Juan F Jiménez-Bremont
The arginine decarboxylase enzyme (ADC) carries out the production of agmatine from arginine, which is the precursor of the first polyamine (PA) known as putrescine; subsequently, putrescine is turned into the higher PAs, spermidine and spermine. In Arabidopsis thaliana PA production occurs only from arginine and this step is initiated by two ADC paralogous, AtADC1 and AtADC2. PA production is essential for A. thaliana life cycle. Here, we analyzed the sub-cellular localization of AtADC1 and AtADC2 enzymes through GFP translational fusions...
January 18, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28109855/heterologous-expression-and-characterization-of-plant-taxadiene-5%C3%AE-hydroxylase-cyp725a4-in-escherichia-coli
#19
John Edward Rouck, Bradley Walters Biggs, Amogh Kambalyal, William R Arnold, Marjan De Mey, Parayil Kumaran Ajikumar, Aditi Das
Taxadiene-5α-Hydroxylase (CYP725A4) is a membrane-bound plant cytochrome P450 that catalyzes the oxidation of taxadiene to taxadiene-5α-ol. This oxidation is a key step in the production of the valuable cancer therapeutic and natural plant product, taxol. In this work, we report the bacterial expression and purification of six different constructs of CYP725A4. All six of these constructs are N-terminally modified and three of them are fused to cytochrome P450 reductase to form a chimera construct. The construct with the highest yield of CYP725A4 protein was then selected for substrate binding and kinetic analysis...
January 18, 2017: Protein Expression and Purification
https://www.readbyqxmd.com/read/28109824/expanding-the-actions-of-cortisol-and-corticosterone-in-wild-vertebrates-a-necessary-step-to-overcome-the-emerging-challenges
#20
REVIEW
Federico Vera, Roxana Zenuto, C Daniel Antenucci
We conducted a review of scientific articles published between 2000 and 2014 and evaluated how frequently various aspects of cortisol and corticosterone (CORT) actions have been considered in studies on wild vertebrates. Results show that (1) the notion that CORT are stress-responsive hormones is central in our theoretical frameworks and it is reflected by the fact that several articles refer to CORT as "stress hormones". (2) The large majority of studies do not contemplate the possibility of decrease and no change in CORT levels in response to chronic stressors...
January 18, 2017: General and Comparative Endocrinology
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