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https://www.readbyqxmd.com/read/28721202/defining-the-inflammatory-signature-of-human-lung-explant-tissue-in-the-presence-and-absence-of-glucocorticoid
#1
Tracy L Rimington, Emily Hodge, Charlotte K Billington, Sangita Bhaker, Binaya K C, Iain Kilty, Scott Jelinsky, Ian P Hall, Ian Sayers
BACKGROUND:  Airway inflammation is a feature of many respiratory diseases and there is a need for newer, more effective anti-inflammatory compounds. The aim of this study was to develop an ex vivo human lung explant model which can be used to help study the mechanisms underlying inflammatory responses and which can provide a tool to aid drug discovery for inflammatory respiratory diseases such as asthma and COPD. METHOD:  Parenchymal lung tissue from 6 individual donors was dissected and cultured with two pro-inflammatory stimuli, lipopolysaccharide (LPS) (1 µg/ml) and interleukin-1 beta (IL-1β) (10 ng/ml) in the presence or absence of dexamethasone (1 µM)...
2017: F1000Research
https://www.readbyqxmd.com/read/28720185/statin-therapy-in-low-risk-air-force-aviators-with-isolated-hypercholesterolemia
#2
Anthony P Tvaryanas, Heather J Mahaney, Valarie M Schroeder, Genny M Maupin
INTRODUCTION: This study evaluated the use of statin therapy in U.S. Air Force (USAF) aviators with isolated hypercholesterolemia in terms of compliance with clinical practice guidelines (CPGs) and effectiveness in reducing low-density lipoprotein cholesterol (LDL-C) and coronary heart disease (CHD) risk. METHODS: This was a mixed design, 8-yr retrospective study that included 8185 participants with isolated hypercholesterolemia, of which 1458 (17.81%) were prescribed statin monotherapy...
August 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28717098/evaluation-of-drug-induced-hematotoxicity-using-novel-in-vitro-monkey-cfu-gm-and-bfu-e-colony-assays
#3
Koichi Goto, Mayumi Goto, Masako Ando-Imaoka, Kiyonori Kai, Kazuhiko Mori
In order to evaluate drug-induced hematotoxicity in monkey cells in vitro, colony-forming unit-granulocyte, macrophage (CFU-GM), and burst-forming unit-erythroid (BFU-E) colony assays were established using mononuclear cells in the bone marrow collected from male cynomolgus monkeys. Furthermore, the effects of doxorubicin, chloramphenicol, and linezolid on CFU-GM and BFU-E colony formation were investigated using established monkey CFU-GM and BFU-E colony assays in comparison with those on human CFU-GM and BFU-E colonies acquired from human umbilical cord blood cells...
2017: Journal of Toxicological Sciences
https://www.readbyqxmd.com/read/28716883/role-of-the-%C3%AE-common-%C3%AE-c-family-of-cytokines-in-health-and-disease
#4
Timothy R Hercus, Winnie L T Kan, Sophie E Broughton, Denis Tvorogov, Hayley S Ramshaw, Jarrod J Sandow, Tracy L Nero, Urmi Dhagat, Emma J Thompson, Karen S Cheung Tung Shing, Duncan R McKenzie, Nicholas J Wilson, Catherine M Owczarek, Gino Vairo, Andrew D Nash, Vinay Tergaonkar, Timothy Hughes, Paul G Ekert, Michael S Samuel, Claudine S Bonder, Michele A Grimbaldeston, Michael W Parker, Angel F Lopez
The β common ([βc]/CD131) family of cytokines comprises granulocyte macrophage colony-stimulating factor (GM-CSF), interleukin (IL)-3, and IL-5, all of which use βc as their key signaling receptor subunit. This is a prototypic signaling subunit-sharing cytokine family that has unveiled many biological paradigms and structural principles applicable to the IL-2, IL-4, and IL-6 receptor families, all of which also share one or more signaling subunits. Originally identified for their functions in the hematopoietic system, the βc cytokines are now known to be truly pleiotropic, impacting on multiple cell types, organs, and biological systems, and thereby controlling the balance between health and disease...
July 17, 2017: Cold Spring Harbor Perspectives in Biology
https://www.readbyqxmd.com/read/28714492/estimated-fetal-weight-comparison-of-clinical-versus-ultrasound-estimate
#5
A Joshi, O B Panta, B Sharma
BACKGROUND: Accurate estimation of fetal weight is of paramount importance in the management of labour and delivery. METHODS: This was a cross sectional study conducted over a period of 6 months in a tertiary care teaching hospital. All singleton term mothers with cephalic presentation and intact membranes with ultrasound examination done within a week were included in the study. IUFD, multiple gestation, malpresentation, diagnosed oligohydramnios or polyhydramnios, pelvic and or abdominal masses, and current weight more than 80 Kgs were excluded from the study...
January 2017: Journal of Nepal Health Research Council
https://www.readbyqxmd.com/read/28712000/predictors-of-weight-loss-in-early-treated-parkinson-s-disease-from-the-net-pd-ls-1-cohort
#6
Anne-Marie Wills, Ruosha Li, Adriana Pérez, Xuehan Ren, James Boyd
Weight loss is a common symptom of Parkinson's disease and is associated with impaired quality of life. Predictors of weight loss have not been studied in large clinical cohorts. We previously observed an association between change in body mass index and change in Unified Parkinson's Disease Rating Scale (UPDRS) motor and total scores. In this study, we performed a secondary analysis of longitudinal data (1-6 years) from 1619 participants in the NINDS Exploratory Trials in PD Long-term Study-1 (NET-PD LS1) to explore predictors of weight loss in a large prospective clinical trial cohort of early treated Parkinson's disease...
July 15, 2017: Journal of Neurology
https://www.readbyqxmd.com/read/28710840/characterization-of-scientific-studies-usually-cited-as-evidence-of-adverse-effects-of-gm-food-feed
#7
REVIEW
M A Sánchez, W A Parrott
GM crops are the most studied crops in history. Approximately 5% of the safety studies on them show adverse effects that are a cause for concern, and tend to be featured in media reports. Although these reports are based on just a handful of GM events, they are used to cast doubt on all GM crops. Furthermore, they tend to come from just a few laboratories and are published in less important journals. Importantly, a close examination of these reports invariably shows methodological flaws that invalidate any conclusions of adverse effects...
July 15, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/28708726/measuring-cerebral-hypoperfusion-induced-by-hyperventilation-challenge-with-intravoxel-incoherent-motion-magnetic-resonance-imaging-in-healthy-volunteers
#8
Aude Pavilla, Alessandro Arrigo, Mehdi Mejdoubi, Régis Duvauferrier, Giulio Gambarota, Hervé Saint-Jalmes
OBJECTIVES: The aim of this study was to demonstrate the feasibility to assess cerebral hypoperfusion with a hyperventilation (HV) challenge protocol using intravoxel incoherent motion (IVIM) magnetic resonance imaging. MATERIALS AND METHODS: Magnetic resonance imaging experiments were performed on 10 healthy volunteers at 1.5 T, with a diffusion IVIM magnetic resonance imaging protocol using a set of b-values optimized by Cramer-Rao Lower Bound analysis. Hypoperfusion was induced by an HV maneuver...
July 13, 2017: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/28707765/tissue-microarray-methodology-identifies-complement-pathway-activation-and-dysregulation-in-progressive-multiple-sclerosis
#9
Sam Loveless, James W Neal, Owain W Howell, Katharine E Harding, Patrick Sarkies, Rhian Evans, Ryan J Bevan, Svetlana Hakobyan, Claire L Harris, Neil P Robertson, B Paul Morgan
BACKGROUND: The complement pathway has potential contributions to both white (WM) and grey matter (GM) pathology in Multiple Sclerosis (MS). A quantitative assessment of complement involvement is lacking. OBJECTIVE: Tissue MicroArray methodology was used in conjunction with immunohistochemistry to investigate the localization of complement pathway proteins in progressive MS cortical GM and subcortical WM. METHODS: Antibodies targeting complement proteins C1q, C3b, regulatory proteins C1 inhibitor (C1INH), complement receptor 1 (CR1), clusterin, factor H (FH) and the C5a anaphylatoxin receptor (C5aR) were utilised alongside standard markers of tissue pathology...
July 14, 2017: Brain Pathology
https://www.readbyqxmd.com/read/28706481/adverse-effects-of-the-apolipoprotein-e-%C3%AE%C2%B54-allele-on-episodic-memory-task-switching-and-gray-matter-volume-in-healthy-young-adults
#10
Jianfei Nao, Hongzan Sun, Qiushi Wang, Shuang Ma, Shuo Zhang, Xiaoyu Dong, Ying Ma, Xiaoming Wang, Dongming Zheng
Many studies have shown that healthy elderly subjects and patients with Alzheimer's disease (AD) who carry the apolipoprotein E (ApoE) ε4 allele have worse cognitive function and more severe brain atrophy than non-carriers. However, it remains unclear whether this ApoE polymorphism leads to changes of cognition and brain morphology in healthy young adults. In this study, we used an established model to measure verbal episodic memory and core executive function (EF) components (response inhibition, working memory and task switching) in 32 ApoE ε4 carriers and 40 non-carriers between 20 years and 40 years of age...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28699625/mutation-supply-and-the-repeatability-of-selection-for-antibiotic-resistance
#11
Thomas van Dijk, Sungmin Hwang, Joachim Krug, Arjan Gm de Visser, Mark Peter Zwart
Whether evolution can be predicted is a key question in evolutionary biology. Here we set out to better understand the repeatability of evolution, which is a necessary condition for predictability. We explored experimentally the effect of mutation supply and the strength of selective pressure on the repeatability of selection from standing genetic variation. Different sizes of mutant libraries of antibiotic resistance gene TEM-1 β-lactamase in Escherichia coli, generated by error-prone PCR, were subjected to different antibiotic concentrations...
July 12, 2017: Physical Biology
https://www.readbyqxmd.com/read/28699246/a-potential-pitfall-in-studies-of-biological-shape-does-size-matter
#12
David Outomuro, Frank Johansson
The number of published studies using geometric morphometrics (GM) for analysing biological shape has increased steadily since the beginning of the 1990's, covering multiple research areas such as ecology, evolution, development, taxonomy and palaeontology. Unfortunately, we have observed that many published studies using GM do not evaluate the potential allometric effects of size on shape, which normally require consideration or assessment. This might lead to misinterpretations and flawed conclusions in certain cases, especially when size effects explain a large part of the shape variation...
July 12, 2017: Journal of Animal Ecology
https://www.readbyqxmd.com/read/28683234/long-term-bone-health-after-roux-en-y-gastric-bypass-a-pilot-study
#13
Fiona Jackson Cook, Ila Khanna, Jennifer Giordano, Laura Matarese, Suzanne Hudson
OBJECTIVE: This cross sectional study was undertaken to assess metabolic bone disease by examining bone mineral density (BMD), fracture prevalence, and nutritional factors pertinent to bone in a cohort >9 years post Roux-en-Y gastric bypass (RYGB). METHODS: Fifty one subjects 9.4-36.0 years (mean 17.0 +8.1) post RYGB provided a focused history. Dietary calcium and protein were assessed. Dual energy X ray absorptiometry (DXA) BMD at the spine, hip, and radius and routine serum chemistries, magnesium, phosphorus, parathyroid hormone, vitamin D, vitamin K, and micronutrients were analyzed...
July 6, 2017: Endocrine Practice
https://www.readbyqxmd.com/read/28680651/gray-matter-density-loss-in-essential-tremor-a-lobule-by-lobule-analysis-of-the-cerebellum
#14
Jonathan P Dyke, Eric Cameron, Nora Hernandez, Ulrike Dydak, Elan D Louis
BACKGROUND: The pathophysiological basis for essential tremor (ET) remains unclear, although evidence increasingly links it to a disordered and perhaps degenerative cerebellum. Prior imaging studies have treated the cerebellum en bloc. Our hypothesis was that regional differences in cerebellar gray matter (GM) density may better distinguish ET cases from controls. Forty-seven ET cases and 36 control subjects were imaged using magnetic resonance imaging (MRI). The cerebellum was segmented into 34 lobes using a Spatially Unbiased Infra-Tentorial Template (SUIT) atlas within the Statistical Parametric Mapping (SPM) analysis package...
2017: Cerebellum & Ataxias
https://www.readbyqxmd.com/read/28679643/endogenous-heat-shock-protein-induction-with-or-without-radiofrequency-ablation-or-cryoablation-in-patients-with-stage-iv-melanoma
#15
Evidio Domingo-Musibay, James M Heun, Wendy K Nevala, Matthew Callstrom, Thomas Atwell, Evanthia Galanis, Lori A Erickson, Svetomir N Markovic
LESSONS LEARNED: Percutaneous thermal ablation combined with in situ granulocyte-macrophage colony-stimulating factor cytokine therapy was technically feasible and well tolerated.No significant clinical or immunologic responses were seen. BACKGROUND: Melanoma tumor-derived heat-shock proteins (HSPs) and HSP-peptide complexes can elicit protective antitumor responses. The granulocyte-macrophage colony-stimulating factor (GM-CSF) chemokine can also promote uptake and processing by professional antigen presenting cells (APCs)...
July 5, 2017: Oncologist
https://www.readbyqxmd.com/read/28678260/why-nanoscale-tank-treads-move-structures-chemical-bonding-and-molecular-dynamics-of-a-doped-boron-cluster-b10c
#16
Ying-Jin Wang, Jin-Chang Guo, Hua-Jin Zhai
Planar boron clusters form dynamic rotors, either as molecular Wankel motors or subnanoscale tank treads, the latter being exemplified by an elongated B11(-) cluster. For an in-depth mechanistic understanding of the rotors, we investigate herein a doped boron cluster, B10C, in which a C atom isovalently substitutes B(-) in the B11(-) tank tread. Two critical structures are achieved: the Cs ((1)A') global minimum (GM) with C positioned in the peripheral ring and the C2v ((1)A1) local minimum (LM) with C in the diatomic core...
July 13, 2017: Nanoscale
https://www.readbyqxmd.com/read/28676888/spinal-cord-microstructure-integrating-phase-sensitive-inversion-recovery-and-diffusional-kurtosis-imaging
#17
V Panara, R Navarra, P A Mattei, E Piccirilli, A R Cotroneo, N Papinutto, R G Henry, A Uncini, M Caulo
PURPOSE: The aim of this prospective study was to determine the feasibility in terms of repeatability and reproducibility of diffusional kurtosis imaging (DKI) for microstructural assessment of the normal cervical spinal cord (cSC) using a phase-sensitive inversion recovery (PSIR) sequence as the anatomical reference for accurately defining white-matter (WM) and gray-matter (GM) regions of interests (ROIs). METHODS: Thirteen young healthy subjects were enrolled to undergo DKI and PSIR sequences in the cSC...
July 4, 2017: Neuroradiology
https://www.readbyqxmd.com/read/28676638/cbl-mediated-k63-linked-ubiquitination-of-jak2-enhances-jak2-phosphorylation-and-signal-transduction
#18
Chun-Shan Liu, Hsin-Fang Yang-Yen, Ching-Shu Suen, Ming-Jing Hwang, Jeffrey Jong-Young Yen
JAK2 activation is crucial for cytokine receptor signal transduction and leukemogenesis. However, the underlying processes that lead to full activation of JAK2 are unclear. Here, we report a positive role for ubiquitination of JAK2 during GM-CSF-induced activation. Upon GM-CSF stimulation, JAK2 ubiquitination is significantly enhanced through K63-linked poly-ubiquitination. Studies employing both knockout and overexpression of Cbl, an E3 ubiquitin ligase, led to the conclusion that Cbl specifically promotes JAK2 ubiquitination, and this was further confirmed in vitro using a Cbl ubiquitination assay...
July 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28674123/dietary-and-physical-activity-strategies-to-prevent-type-2-diabetes-in-south-asian-adults-protocol-for-a-systematic-review
#19
Mirthe Muilwijk, Karien Stronks, Samera Azeem Qureshi, Erik Beune, Carlos Celis-Morales, Jason Gill, Aziz Sheikh, Anne Karen Jenum, Irene Gm van Valkengoed
INTRODUCTION: Type 2 diabetes (T2D) is a major health concern among populations of South Asian ethnicity. Although dietary and physical activity interventions may reduce the risk of T2D, the effectiveness has been moderate among South Asians. This might (in part) be because this subgroup follows strategies that were originally developed for interventions among other populations. Therefore, this review aims to assess the evidence for the current dietary and physical activity strategies recommended in T2D prevention intervention studies and guidelines for South Asians...
July 2, 2017: BMJ Open
https://www.readbyqxmd.com/read/28670309/prevalence-of-antibiotic-resistant-escherichia-coli-in-drinking-water-sources-in-hangzhou-city
#20
Zhaojun Chen, Daojun Yu, Songzhe He, Hui Ye, Lei Zhang, Yanping Wen, Wenhui Zhang, Liping Shu, Shuchang Chen
This study investigated the distribution of antibiotic resistant Escherichia coli (E. coli) and examined the possible relationship between water quality parameters and antibiotic resistance from two different drinking water sources (the Qiantang River and the Dongtiao Stream) in Hangzhou city of China. E. coli isolates were tested for their susceptibility to 18 antibiotics. Most of the isolates were resistant to tetracycline (TE), followed by ampicillin (AM), piperacillin (PIP), trimethoprim/sulfamethoxazole (SXT), and chloramphenicol (C)...
2017: Frontiers in Microbiology
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