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https://www.readbyqxmd.com/read/29332262/tumor-expression-of-survivin-p53-cyclin-d1-osteopontin-and-fibronectin-in-predicting-the-response-to-neo-adjuvant-chemotherapy-in-children-with-advanced-malignant-peripheral-nerve-sheath-tumor
#1
Gabrielle Karpinsky, Malgorzata A Krawczyk, Ewa Izycka-Swieszewska, Aleksandra Fatyga, Agnieszka Budka, Walentyna Balwierz, Grazyna Sobol, Beata Zalewska-Szewczyk, Magdalena Rychlowska-Pruszynska, Teresa Klepacka, Bozenna Dembowska-Baginska, Bernarda Kazanowska, Anna Gabrych, Ewa Bien
PURPOSE: Selected cell-cycle regulators and extracellular matrix proteins were found to play roles in malignant peripheral nerve sheath tumor (MPNST) biology. We aimed to analyze whether initial tumor tissue expressions of survivin, p53, cyclin D1, osteopontin (OPN) and fibronectin (FN) correlate with the response to neo-adjuvant CHT (naCHT) in children with advanced inoperable MPNST. METHODS: The study included 26 children with MPNST (M/F 14/12, median age 130 months) treated in Polish centers of pediatric oncology between 1992 and 2013...
January 13, 2018: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/29332151/1h-13c-and-15n-backbone-and-partial-side-chain-resonance-assignments-of-the-c-terminal-domain-of-hiv-1-pr55gag-encompassed-in-ncp15
#2
Valéry Larue, Marjorie Catala, Anissa Belfetmi, Loussiné Zargarian, Olivier Mauffret, Carine Tisné
During HIV-1 assembly, the Pr55Gag polyprotein precursor (Gag) interacts with the genomic RNA, with lipids of the plasma membrane, with host proteins (ALIX, TSG101) through the ESCRT complex, with the viral protein Vpr and are involved in intermolecular interactions with other Pr55Gag proteins. This network of interactions is responsible for the formation of the viral particle, the selection of genomic RNA and the packaging of Vpr. The C-terminal domain of Gag encompassed in NCp15 is involved in the majority of these interactions, either by its nucleocapsid or its p6 domains...
January 13, 2018: Biomolecular NMR Assignments
https://www.readbyqxmd.com/read/29331313/predictors-of-exacerbation-risk-and-response-to-budesonide-in-patients-with-chronic-obstructive-pulmonary-disease-a-post-hoc-analysis-of-three-randomised-trials
#3
Mona Bafadhel, Stefan Peterson, Miguel A De Blas, Peter M Calverley, Stephen I Rennard, Kai Richter, Malin Fagerås
BACKGROUND: The peripheral blood eosinophil count might help identify those patients with chronic obstructive pulmonary disease (COPD) who will experience fewer exacerbations when taking inhaled corticosteroids (ICS). Previous post-hoc analyses have proposed eosinophil cutoffs that are both arbitrary and limited in evaluating complex interactions of treatment response. We modelled eosinophil count as a continuous variable to determine the characteristics that determine both exacerbation risk and clinical response to ICS in patients with COPD...
January 10, 2018: Lancet Respiratory Medicine
https://www.readbyqxmd.com/read/29331246/estimation-of-expected-dengue-seroprevalence-from-passive-epidemiological-surveillance-systems-in-selected-areas-of-argentina-a-proxy-to-evaluate-the-applicability-of-dengue-vaccination
#4
Pablo Orellano, Darío Vezzani, Nancy Quaranta, Julieta Reynoso, Oscar Daniel Salomón
BACKGROUND: Current recommendations about dengue vaccination by the World Health Organization depend on seroprevalence levels and serological status in populations and individuals. However, seroprevalence estimation may be difficult due to a diversity of factors. Thus, estimation through models using data from epidemiological surveillance systems could be an alternative procedure to achieve this goal. OBJECTIVE: To estimate the expected dengue seroprevalence in children of selected areas in Argentina, using a simple model based on data from passive epidemiological surveillance systems...
January 11, 2018: Vaccine
https://www.readbyqxmd.com/read/29330519/large-scale-aggregation-analysis-of-eukaryotic-proteins-reveals-an-involvement-of-intrinsically-disordered-regions-in-protein-folding
#5
Eri Uemura, Tatsuya Niwa, Shintaro Minami, Kazuhiro Takemoto, Satoshi Fukuchi, Kodai Machida, Hiroaki Imataka, Takuya Ueda, Motonori Ota, Hideki Taguchi
A subset of the proteome is prone to aggregate formation, which is prevented by chaperones in the cell. To investigate whether the basic principle underlying the aggregation process is common in prokaryotes and eukaryotes, we conducted a large-scale aggregation analysis of ~500 cytosolic budding yeast proteins using a chaperone-free reconstituted translation system, and compared the obtained data with that of ~3,000 Escherichia coli proteins reported previously. Although the physicochemical properties affecting the aggregation propensity were generally similar in yeast and E...
January 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29330354/the-res-complex-is-required-for-efficient-transformation-of-the-precatalytic-b-spliceosome-into-an-activated-bact-complex
#6
Penghui Bao, Cindy L Will, Henning Urlaub, Kum-Loong Boon, Reinhard Lührmann
The precise function of the trimeric retention and splicing (RES) complex in pre-mRNA splicing remains unclear. Here we dissected the role of RES during the assembly and activation of yeast spliceosomes. The efficiency of pre-mRNA splicing was significantly lower in the absence of the RES protein Snu17, and the recruitment of its binding partners, Pml1 (pre-mRNA leakage protein 1) and Bud13 (bud site selection protein 13), to the spliceosome was either abolished or substantially reduced. RES was not required for the assembly of spliceosomal B complexes, but its absence hindered efficient Bact complex formation...
January 12, 2018: Genes & Development
https://www.readbyqxmd.com/read/29330081/optimization-of-a-technology-supported-physical-activity-intervention-for-breast-cancer-survivors-fit2thrive-study-protocol
#7
Siobhan M Phillips, Linda M Collins, Frank J Penedo, Kerry S Courneya, Whitney Welch, Alison Cottrell, Gillian R Lloyd, Kara Gavin, David Cella, Ronald T Ackermann, Juned Siddique, Bonnie Spring
Fit2Thrive is a theory-guided physical activity promotion trial using the Multiphase Optimization Strategy (MOST) to test efficacy for improving physical activity of five technology-supported physical activity promotion intervention components among breast cancer survivors. This trial will recruit 256 inactive breast cancer survivors nationwide. All participants will receive the core intervention which includes a Fitbit and standard self-monitoring Fit2Thrive smartphone application which will be downloaded to their personal phone...
January 9, 2018: Contemporary Clinical Trials
https://www.readbyqxmd.com/read/29330055/tissue-geometry-may-govern-lung-branching-mode-selection
#8
Uduak Z George, Sharon R Lubkin
Lung branching morphogenesis proceeds in three stereotyped modes (domain, planar, and orthogonal branching). Much is known about the molecular players, including growth factors such as fibroblast growth factor 10 but it is unknown how these signals could actuate the different branching patterns. With the aim of identifying mechanisms that may determine the different branching modes, we developed a computational model of the epithelial lung bud and its surrounding mesenchyme. We studied transport of morphogens and localization of morphogen flux at lobe surfaces and lobe edges...
January 9, 2018: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/29329912/identification-and-fate-mapping-of-the-pancreatic-mesenchyme
#9
Jesse Angelo, Kimberly D Tremblay
The murine pancreas buds from the ventral embryonic endoderm at approximately 8.75 dpc and a second pancreas bud emerges from the dorsal endoderm by 9.0 dpc. Although it is clear that secreted signals from adjacent mesoderm-derived sources are required for both the appropriate emergence and further refinement of the pancreatic endoderm, neither the exact signals nor the requisite tissue sources have been defined in mammalian systems. Herein we use DiI fate mapping of cultured murine embryos to identify the embryonic sources of both the early inductive and later condensed pancreatic mesenchyme...
January 9, 2018: Developmental Biology
https://www.readbyqxmd.com/read/29329747/antibacterial-properties-of-latarcin-1-derived-cell-penetrating-peptides
#10
Deepthi Poornima Budagavi, Archana Chugh
Cell-penetrating peptides (CPPs) and antimicrobial peptides (AMPs) share certain physicochemical parameters such as amphipathicity, hydrophobicity, cationicity and pI, due to which these two groups of peptides also exhibit overlapping functional characteristics. In our current work, we have evaluated antimicrobial properties of cell-penetrating peptides derived from Latarcin1. Latarcin derived peptide (LDP) exhibited antimicrobial activity against representative microorganisms tested and bactericidal effect against methicillin resistant Staphylococcus aureus (MRSA), which was used as model organism of study in the present work...
January 9, 2018: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29329339/accessibility-and-contribution-to-glucan-masking-of-natural-and-genetically-tagged-versions-of-yeast-wall-protein-1-of-candida-albicans
#11
Bruce L Granger
Yeast wall protein 1 (Ywp1) is an abundant glycoprotein of the cell wall of the yeast form of Candida albicans, the most prevalent fungal pathogen of humans. Antibodies that bind to the polypeptide backbone of isolated Ywp1 show little binding to intact yeast cells, presumably because the Ywp1 epitopes are masked by the polysaccharides of the mannoproteins that form the outer layer of the cell wall. Rare cells do exhibit much greater anti-Ywp1 binding, however, and one of these was isolated and characterized...
2018: PloS One
https://www.readbyqxmd.com/read/29328963/the-effect-of-white-matter-hyperintensities-on-cognition-is-mediated-by-cortical-atrophy
#12
Batool Rizvi, Atul Narkhede, Briana S Last, Mariana Budge, Giuseppe Tosto, Jennifer J Manly, Nicole Schupf, Richard Mayeux, Adam M Brickman
White matter hyperintensities (WMH) have been linked to cognitive dysfunction and dementia, although the reasons are unclear. One possibility is that WMH promote neurodegeneration, which, in turn, affects cognition. We examined whether cortical thickness, a marker of neurodegeneration, mediates the relationship between WMH and cognition among 519 older adults. Using conditional process analysis modeling techniques, we examined the association between WMH volume and global cognition and tested whether cortical thickness mediates this relationship statistically...
December 16, 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/29328915/retrovirus-like-gag-protein-arc1-binds-rna-and-traffics-across-synaptic-boutons
#13
James Ashley, Benjamin Cordy, Diandra Lucia, Lee G Fradkin, Vivian Budnik, Travis Thomson
Arc/Arg3.1 is required for synaptic plasticity and cognition, and mutations in this gene are linked to autism and schizophrenia. Arc bears a domain resembling retroviral/retrotransposon Gag-like proteins, which multimerize into a capsid that packages viral RNA. The significance of such a domain in a plasticity molecule is uncertain. Here, we report that the Drosophila Arc1 protein forms capsid-like structures that bind darc1 mRNA in neurons and is loaded into extracellular vesicles that are transferred from motorneurons to muscles...
January 11, 2018: Cell
https://www.readbyqxmd.com/read/29328868/oral-sciences-phd-program-enrollment-graduates-and-placement-1994-to-2016
#14
C R Herzog, D W Berzins, P DenBesten, R L Gregory, K M Hargreaves, R L W Messer, M Mina, M P Mooney, M L Paine, C Phillips, R B Presland, R G Quivey, F A Scannapieco, J F Sheridan, K K H Svoboda, P C Trackman, M P Walker, S G Walker, C Y Wang, J C C Hu
For decades, dental schools in the United States have endured a significant faculty shortage. Studies have determined that the top 2 sources of dental faculty are advanced education programs and private practice. Those who have completed both DDS and PhD training are considered prime candidates for dental faculty positions. However, there is no national database to track those trainees and no evidence to indicate that they entered academia upon graduation. The objective of this study was to assess outcomes of dental school-affiliated oral sciences PhD program enrollment, graduates, and placement between 1994 and 2016...
January 1, 2018: Journal of Dental Research
https://www.readbyqxmd.com/read/29328505/substance-p-as-a-putative-efferent-transmitter-mediates-gabaergic-inhibition-in-mouse-taste-buds
#15
Anthony Y Huang, Sandy Y Wu
BACKGROUND AND PURPOSE: Capsaicin-mediated modulation on taste nerve responses is thought to be produced indirectly by actions of neuropeptides, e.g., calcitonin gene-related peptide (CGRP) and substance P (SP), onto taste cells implying playing a role in taste sensitivity. During processing gustatory information in taste buds, CGRP shapes peripheral taste signals via serotonergic signaling. The underlying assumption has been that SP exerts its effects on taste transmitter secretion in taste buds of mice...
January 12, 2018: British Journal of Pharmacology
https://www.readbyqxmd.com/read/29327956/the-incidence-and-treatment-outcomes-of-macrorhabdus-ornithogaster-infection-in-budgerigars-melopsittacus-undulatus-in-a-veterinary-clinic
#16
Ronja Püstow, Maria-Elisabeth Krautwald-Junghanns
Macrorhabdus ornithogaster, avian gastric yeast, is a common cause of gastrointestinal disease in budgerigars ( Melopsittacus undulatus). To better understand the clinical disease in budgerigars presented in a practice population, we reviewed the occurrence, clinical signs, and treatment success of M ornithogaster disease in budgerigars during a 2.5-year period at the Clinic for Birds and Reptiles, University of Leipzig (Leipzig, Germany). The yeast was diagnosed by microscopic examination of fresh fecal samples...
December 2017: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/29327488/isolation-of-human-photoreceptor-precursors-via-a-cell-surface-marker-panel-from-stem-cell-derived-retinal-organoids-and-fetal-retinae
#17
Jörn Lakowski, Emily Welby, Dimitri Budinger, Fabiana Di Marco, Valentina Di Foggia, James W B Bainbridge, Kyle Wallace, David M Gamm, Robin R Ali, Jane C Sowden
Loss of photoreceptor cells due to retinal degeneration is one of the main causes of blindness in the developed world. Although there is currently no effective treatment, cell replacement therapy using stem-cell-derived photoreceptor cells may be a feasible future treatment option. In order to ensure safety and efficacy of this approach, robust cell isolation and purification protocols must be developed. To this end, we previously developed a biomarker panel for the isolation of mouse photoreceptor precursors from the developing mouse retina and mouse embryonic stem cell cultures...
January 12, 2018: Stem Cells
https://www.readbyqxmd.com/read/29327217/cryobiotechnology-of-apple-malus-spp-development-progress-and-future-prospects
#18
REVIEW
Min-Rui Wang, Long Chen, Jaime A Teixeira da Silva, Gayle M Volk, Qiao-Chun Wang
Cryopreservation provides valuable genes for further breeding of elite cultivars, and cryotherapy improves the production of virus-free plants in Malus spp., thus assisting the sustainable development of the apple industry. Apple (Malus spp.) is one of the most economically important temperate fruit crops. Wild Malus genetic resources and existing cultivars provide valuable genes for breeding new elite cultivars and rootstocks through traditional and biotechnological breeding programs. These valuable genes include those resistant to abiotic factors such as drought and salinity, and to biotic factors such as fungi, bacteria and aphids...
January 11, 2018: Plant Cell Reports
https://www.readbyqxmd.com/read/29327210/paired-blood-cultures-increase-the-sensitivity-for-detecting-pathogens-in-both-inpatients-and-outpatients
#19
Bansidhar Tarai, Dinesh Jain, Poonam Das, Sandeeep Budhiraja
The objective of this study was to show the differences between paired blood cultures (PBC) versus single blood cultures (SBC) in the microbiologic yield, the sensitivity to detect pathogens and the time to positivity (TTP). We performed a retrospective study examining 112,570 blood culture samples over a 5-year period from July 2011 to May 2016 in the BacT/ALERT® 3D automated blood culture system (bioMérieux, Marcy l'Etoile, France). Bacteria and yeasts were identified using the VITEK® 2 Compact system (bioMérieux, Marcy l'Etoile, France)...
January 11, 2018: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/29326438/conditional-knockout-of-n-myc-and-stat-interactor-disrupts-normal-mammary-development-and-enhances-metastatic-ability-of-mammary-tumors
#20
Hawley C Pruitt, Brandon J Metge, Shannon E Weeks, Dongquan Chen, Shi Wei, Robert A Kesterson, Lalita A Shevde, Rajeev S Samant
The process of organ development requires a delicate balance between cellular plasticity and differentiation. This balance is disrupted in cancer initiation and progression. N-Myc and STAT interactor (NMI: human or Nmi: murine) has emerged as a relevant player in the etiology of breast cancer. However, a fundamental understanding of its relevance to normal mammary biology is lacking. To gain insight into its normal function in mammary gland, we generated a mammary-specific Nmi knockout mouse model. We observed that Nmi protein expression is induced in mammary epithelium at the onset of pregnancy, in luminal cells and persists throughout lactation...
January 12, 2018: Oncogene
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