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https://www.readbyqxmd.com/read/29340885/quantifying-diastolic-function-from-e-waves-as-triangles-to-physiologic-contours-via-the-geometric-method
#1
Mikhail Golman, William Padovano, Leonid Shmuylovich, Sándor J Kovács
Conventional echocardiographic diastolic function (DF) assessment approximates transmitral flow velocity contours (Doppler E-waves) as triangles, with peak (Epeak), acceleration time (AT), and deceleration time (DT) as indexes. These metrics have limited value because they are unable to characterize the underlying physiology. The parametrized diastolic filling (PDF) formalism provides a physiologic, kinematic mechanism based characterization of DF by extracting chamber stiffness (k), relaxation (c), and load (x o ) from E-wave contours...
January 16, 2018: Cardiovascular Engineering and Technology
https://www.readbyqxmd.com/read/29338593/expression-and-role-of-granulocyte-macrophage-colony-stimulating-factor-receptor-gm-csfr-and-granulocyte-colony-stimulating-factor-receptor-g-csfr-on-ph-positive-acute-b-lymphoblastic-leukemia
#2
Yong Wu, Ming Tan, Mei-Ling Chen, Yuan-Zhong Chen
OBJECTIVE: We observed that ph + ALL patients administrated with recombinant human G-CSF (rhG-CSF) after intense chemotherapy have presented a trend of disease relapse. Thus, we aim to thoroughly investigate the expression and role of GM-CSFR and G-CSFR on ph + ALL patients. METHOD: SUP-B15, BALL-1 and primary leukemia cells were used in this study. Transcript levels were analyzed by quantitative PCR while cell viability was measured using a CCK-8 assay...
January 17, 2018: Hematology (Amsterdam, Netherlands)
https://www.readbyqxmd.com/read/29332372/measurement-and-modeling-of-indoor-radon-concentrations-in-residential-buildings
#3
Ji Hyun Park, Sungim Whang, Hyun Young Lee, Cheol-Min Lee, Dae Ryong Kang
Objectives: Radon, the primary constituent of natural radiation, is the second leading environmental cause of lung cancer after smoking. To confirm a relationship between indoor radon exposure and lung cancer, estimating cumulative levels of exposure to indoor radon for an individual or population is necessary. This study sought to develop a model for estimate indoor radon concentrations in Korea. Especially, our model and method may have wider application to other residences, not to specific site, and can be used in situations where actual measurements for input variables are lacking...
January 8, 2018: Environmental Health and Toxicology
https://www.readbyqxmd.com/read/29331092/deep-grey-matter-volume-loss-drives-disability-worsening-in-multiple-sclerosis
#4
Arman Eshaghi, Ferran Prados, Wallace Brownlee, Daniel R Altmann, Carmen Tur, M Jorge Cardoso, Floriana De Angelis, Steven H van de Pavert, Niamh Cawley, Nicola De Stefano, M Laura Stromillo, Marco Battaglini, Serena Ruggieri, Claudio Gasperini, Massimo Filippi, Maria A Rocca, Alex Rovira, Jaume Sastre-Garriga, Hugo Vrenken, Cyra E Leurs, Joep Killestein, Lukas Pirpamer, Christian Enzinger, Sebastien Ourselin, Claudia A M Gandini Wheeler-Kingshott, Declan Chard, Alan J Thompson, Daniel C Alexander, Frederik Barkhof, Olga Ciccarelli
OBJECTIVE: Grey matter (GM) atrophy occurs in all multiple sclerosis (MS) phenotypes. We investigated whether there is a spatiotemporal pattern of GM atrophy that is associated with faster disability accumulation in MS. METHODS: We analysed 3,604 brain high-resolution T1-weighted MRI scans from 1,417 participants: 1,214 MS patients (253 clinically-isolated syndrome[CIS], 708 relapsing-remitting[RRMS], 128 secondary-progressive[SPMS], 125 primary-progressive[PPMS]), over an average follow-up of 2...
January 13, 2018: Annals of Neurology
https://www.readbyqxmd.com/read/29328541/gm-csf-ameliorates-micro-vascular-barrier-integrity-via-pericytes-derived-ang-1-in-wound-healing
#5
Min Yan, Yange Hu, Min Yao, Shisan Bao, Yong Fang
BACKGROUND: Skin wound healing involves complex coordinated interactions of cells, tissues and mediators. Maintaining microvascular barrier integrity is one of the key events for endothelial homeostasis during wound healing. Vasodilation is observed after vasoconstriction, which causes blood vessels to become porous, facilitates leukocyte infiltration and aids angiogenesis at the wound-area, post-injury. Eventually, vessel integrity has to be re-established for vascular maturation. Numerous studies have found that granulocyte macrophage colony-stimulating factor (GM-CSF) accelerates wound healing by inducing recruitment of repair cells into the injury area and releases of cytokines...
January 12, 2018: Wound Repair and Regeneration
https://www.readbyqxmd.com/read/29327177/influence-of-sampling-frequency-and-load-calculation-methods-on-quantification-of-annual-river-nutrient-and-suspended-solids-loads
#6
Ahmed Elwan, Ranvir Singh, Maree Patterson, Jon Roygard, Dave Horne, Brent Clothier, Geoffrey Jones
Better management of water quality in streams, rivers and lakes requires precise and accurate estimates of different contaminant loads. We assessed four sampling frequencies (2 days, weekly, fortnightly and monthly) and five load calculation methods (global mean (GM), rating curve (RC), ratio estimator (RE), flow-stratified (FS) and flow-weighted (FW)) to quantify loads of nitrate-nitrogen (NO3--N), soluble inorganic nitrogen (SIN), total nitrogen (TN), dissolved reactive phosphorus (DRP), total phosphorus (TP) and total suspended solids (TSS), in the Manawatu River, New Zealand...
January 11, 2018: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29325723/double-function-hydroperoxide-lyases-epoxyalcohol-synthases-cyp74c-of-higher-plants-identification-and-conversion-into-allene-oxide-synthases-by-site-directed-mutagenesis
#7
Yana Y Toporkova, Svetlana S Gorina, Elena K Bessolitsyna, Elena O Smirnova, Valeria S Fatykhova, Fredi Brühlmann, Tatiana M Ilyina, Lucia S Mukhtarova, Alexander N Grechkin
The CYP74C subfamily of fatty acid hydroperoxide transforming enzymes includes hydroperoxide lyases (HPLs) and allene oxide synthases (AOSs). This work reports a new facet of the putative CYP74C HPLs. Initially, we found that the recombinant CYP74C13_MT (Medicago truncatula) behaved predominantly as the epoxyalcohol synthase (EAS) towards the 9(SS)-hydroperoxide of linoleic acid. At the same time, the CYP74C13_MT mostly possessed the HPL activity towards the 13(S)-hydroperoxides of linoleic and α-linolenic acids...
January 8, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29319160/macrophage-plasticity-polarization-and-function-in-health-and-disease
#8
REVIEW
Abbas Shapouri Moghaddam, Saeed Mohammadian, Hossein Vazini, Mahdi Taghadosi, Seyed-Alireza Esmaeili, Fatemeh Mardani, Bita Seifi, Asadollah Mohammadi, Jalil Tavakol Afshari, Amirhossein Sahebkar
Macrophages are heterogeneous and their phenotype and functions are regulated by the surrounding micro-environment. Macrophages commonly exist in two distinct subsets: 1) Classically activated or M1 macrophages, which are pro-inflammatory and polarized by lipopolysaccharide (LPS) either alone or in association with Th1 cytokines such as IFN-γ, GM-CSF and produce pro-inflammatory cytokines such as interleukin-1β (IL-1β), IL-6, IL-12, IL-23 and TNF-α, and 2) Alternatively activated or M2 macrophages, which are anti-inflammatory and immunoregulatory and polarized by Th2 cytokines such as IL-4 and IL-13 and produce anti-inflammatory cytokines such as IL-10 and TGF-β...
January 10, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29316516/polybrominated-diphenyl-ethers-pbdes-and-hydroxylated-pbde-metabolites-oh-pbdes-in-maternal-and-fetal-tissues-and-associations-with-fetal-cytochrome-p450-gene-expression
#9
Ami R Zota, Susanna D Mitro, Joshua F Robinson, Emily G Hamilton, June-Soo Park, Emily Parry, R Thomas Zoeller, Tracey J Woodruff
BACKGROUND: Human fetal exposures to polybrominated diphenyl ethers (PBDEs) and their metabolites (OH-PBDEs) are unique from adults, and in combination with a different metabolic profile, may make fetal development more sensitive to adverse health outcomes from these exposures. However, we lack data to characterize human fetal PBDE exposures and the metabolic factors that can influence these exposures. OBJECTIVE: We examined differences between 2nd trimester maternal and fetal exposures to PBDEs and OH-PBDEs...
January 6, 2018: Environment International
https://www.readbyqxmd.com/read/29316038/effect-of-dimethyl-fumarate-on-gray-and-white-matter-pathology-in-subjects-with-relapsing-multiple-sclerosis-a-longitudinal-study
#10
Robert Zivadinov, Jesper Hagemeier, Niels Bergsland, Eleonora Tavazzi, Bianca Weinstock-Guttman
BACKGROUND: Dimethyl fumarate (DMF) is an oral treatment for relapsing remitting multiple sclerosis (RRMS) with anti-inflammatory and possible neuroprotective properties. Its effect on white matter (WM) and gray matter (GM) pathology is still not fully understood. OBJECTIVE: To characterize the effect of DMF on normal appearing WM (NAWM) and thalamic pathology longitudinally. METHODS: In this observational, longitudinal, 24-month MRI study, 75 RRMS treated with DMF and 40 age- and sex- matched healthy individuals (HIs) were enrolled...
January 5, 2018: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/29299614/cortical-and-subcortical-morphometric-and-iron-changes-in-relapsing-remitting-multiple-sclerosis-and-their-association-with-white-matter-t2%C3%A2-lesion-load-a%C3%A2-3-tesla-magnetic-resonance-imaging-study
#11
Ali Al-Radaideh, Imad Athamneh, Hadeel Alabadi, Majed Hbahbih
INTRODUCTION: This study was carried out to investigate the global and regional morphometric and iron changes in grey matter (GM) of multiple sclerosis (MS) patients and link them to the white matter (WM) lesions in a multimodal magnetic resonance imaging approach. MATERIAL AND METHODS: The study involved 30 relapsing-remitting MS (RRMS) patients along with 30 age-matched healthy controls (HC) who were scanned on a 3T Siemens Trio system. The scanning protocol included a 3D, high resolution T1, T2, and T2*-weighted sequences...
January 3, 2018: Clinical Neuroradiology
https://www.readbyqxmd.com/read/29278641/reduction-of-brain-volumes-after-neonatal-cardiopulmonary-bypass-surgery-in-single-ventricle-congenital-heart-disease-prior-to-fontan-completion
#12
Kristina N Mayer, Walter Knirsch, Beatrice Latal, Ianina Scheer, Kristina Wetterling, Andreas Hahn, Hakan Akintürk, Dietmar Schranz, Ingrid Beck, Ruth ÓGorman Tuura, Bettina Reich
BACKGROUND: Little is known about the relationship between brain volumes and neurodevelopmental outcome at two years of age in children with single ventricle congenital heart disease (CHD). We hypothesized that reduced brain volumes may be associated with adverse neurodevelopmental outcome. METHODS: Volumetric segmentation of cerebral MRI scans was done in 44 patients without genetic comorbidities and in eight controls. Neurodevelopmental outcome was assessed with the Bayley-III scales...
August 21, 2017: Pediatric Research
https://www.readbyqxmd.com/read/29273689/multiple-pathways-of-reserve-simultaneously-present-in-cognitively-normal-older-adults
#13
Hwamee Oh, Qolamreza R Razlighi, Yaakov Stern
OBJECTIVE: To examine neural correlates of intellectual activity underlying multiple pathways imparting reserve by testing that higher intellectual activity is associated with lower brain amyloid pathology, greater gray matter (GM) volume, and differential task-evoked brain activation levels as a function of amyloid positivity status among clinically intact older adults. METHODS: Eighty-two cognitively normal older adults and 46 healthy young participants underwent fMRI during task switching...
December 22, 2017: Neurology
https://www.readbyqxmd.com/read/29259396/galactomannan-in-bronchoalveolar-lavage-fluid-for-diagnosis-of-invasive-pulmonary-aspergillosis-with-nonneutropenic-patients
#14
Qidong Zhuang, Hongying Ma, Yun Zhang, Lei Chen, Li Wang, Lin Zheng, Zaichun Deng, Zhongbo Chen
Background: We evaluated the utility of galactomannan (GM) in bronchoalveolar lavage fluid (BALF) for the diagnosis of invasive pulmonary aspergillosis (IPA) in nonneutropenic patients. Methods: A total of 183 patients were included in the final analysis. Bronchoscopies and the detection of GM in BALF were all performed on them. Results: Ten cases of IPA were diagnosed. ROC data demonstrated that, for diagnosing IPA, an optimal cutoff value for GM in BALF of 0...
2017: Canadian Respiratory Journal: Journal of the Canadian Thoracic Society
https://www.readbyqxmd.com/read/29258618/a-pilot-study-of-an-autologous-tumor-derived-autophagosome-vaccine-with-docetaxel-in-patients-with-stage-iv-non-small-cell-lung-cancer
#15
Rachel E Sanborn, Helen J Ross, Sandra Aung, Anupama Acheson, Tarsem Moudgil, Sachin Puri, Traci Hilton, Brenda Fisher, Todd Coffey, Christopher Paustian, Michael Neuberger, Edwin Walker, Hong-Ming Hu, Walter J Urba, Bernard A Fox
BACKGROUND: Tumor-derived autophagosome vaccines (DRibbles) have the potential to broaden immune response to poorly immunogenic tumors. METHODS: Autologous vaccine generated from tumor cells harvested from pleural effusions was administered to patients with advanced NSCLC with the objectives of assessing safety and immune response. Four patients were vaccinated and evaluable for immune response; each received two to four doses of vaccine. Study therapy included two cycles of docetaxel 75 mg/m2 on days 1 and 29 to treat the tumor, release hidden antigens and produce lymphopenia...
December 19, 2017: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/29251350/engineered-cell-migration-to-lesions-linked-to-autoimmune-disease
#16
Abdullah A Mosabbir, Anam Qudrat, Kevin Truong
The damaging and degenerative effects in autoimmune diseases such as rheumatoid arthritis, multiple sclerosis and Crohn's disease often manifests as the formation of lesions that feature a high local concentration of granulocyte-macrophage colony-stimulating factor (GM-CSF). GM-CSF along with other pro-inflammatory factors form a positive feedback loop that ultimately perpetuate the lesions. Hence, to engineer chemotaxis to GM-CSF, we created a new chimeric GM-CSF receptor alpha subunit (GMRchi) that was coupled with a previously engineered Ca2+ -activated RhoA...
December 18, 2017: Biotechnology and Bioengineering
https://www.readbyqxmd.com/read/29251002/mannosylated-t-tn-with-freund-s-adjuvant-induces-cellular-immunity
#17
Hye-Youn Son, Vasso Apostolopoulos, Chul-Woo Kim
Inducing cancer-specific cellular immune responses has become an attractive strategy in cancer treatment. In this study, we investigated the role of several adjuvants in eliciting T/Tn-specific cellular immunity and protection against T/Tn expressing tumor challenge. T/Tn (9:1) antigen was purified from blood type "O" erythrocytes donated from healthy Korean volunteers. Immunization was performed using: T/Tn only, T/Tn mixed with Freund's adjuvant (T/Tn + FA), keyhole limpet hemocyanin (KLH)-conjugated T/Tn mixed with FA (KLH-T/Tn + FA), and oxidized mannan-conjugated T/Tn mixed with FA (ox-M-T/Tn + FA)...
December 1, 2017: International Journal of Immunopathology and Pharmacology
https://www.readbyqxmd.com/read/29248586/improving-the-diagnosis-of-invasive-aspergillosis-by-the-detection-of-aspergillus-in-broncho-alveolar-lavage-fluid-comparison-of-non-culture-based-assays
#18
Hélène Guegan, Florence Robert-Gangneux, Christophe Camus, Sorya Belaz, Tony Marchand, Marion Baldeyrou, Jean-Pierre Gangneux
OBJECTIVES: This study aimed to evaluate new tools to diagnose invasive aspergillosis (IA) directly from broncho-alveolar lavage (BAL) samples. METHODS: All consecutive patients with suspected IA who underwent bronchoscopy with BAL were prospectively included. Mycological culture and ELISA detection of galactomannan (GM) were performed on BAL. Two in-house and two marketed PCR assays were used on BAL DNA extracts to detect Aspergillus species. Susceptibility testing was performed after culture; marketed PCR assays detected mutations in the CYP51A gene associated to resistance...
December 14, 2017: Journal of Infection
https://www.readbyqxmd.com/read/29243219/pd-1-blockade-enhances-the-anti-tumor-efficacy-of-gm-csf-surface-modified-bladder-cancer-stem-cells-vaccine
#19
Xiaojun Shi, Xinji Zhang, Jinlong Li, Lijun Mo, Hongfan Zhao, Yongtong Zhu, Zhiming Hu, Jimin Gao, Wanlong Tan
Eliminating cancer stem cells (CSCs) is a key issue in eradicating tumor. The streptavidin-granulocyte -macrophage colony stimulating factor (SA-GM-CSF) surface-modified bladder cancer stem cells vaccine previously developed using our protein-anchor technology could effectively induce specific immune response for eliminating CSCs. However, program death receptor-1 (PD-1)/program death ligand 1 (PD-L1) signaling in tumor microenvironment results in tumor adaptive immune resistance. Although the CSCs vaccine could increase the number of CD8+ T-cells, a part of these CD8+ T-cells expressed PD-1...
December 15, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29243152/transgene-escape-and-persistence-in-an-agroecosystem-the-case-of-glyphosate-resistant-brassica-rapa-l-in-central-argentina
#20
Claudio E Pandolfo, Alejandro Presotto, Francisco Torres Carbonell, Soledad Ureta, Mónica Poverene, Miguel Cantamutto
Brassica rapa L. is an annual Brassicaceae species cultivated for oil and food production, whose wild form is a weed of crops worldwide. In temperate regions of South America and especially in the Argentine Pampas region, this species is widely distributed. During 2014, wild B. rapa populations that escaped control with glyphosate applications by farmers were found in this area. These plants were characterized by morphology and seed acidic profile, and all the characters agreed with B. rapa description. The dose-response assays showed that the biotypes were highly resistant to glyphosate...
December 14, 2017: Environmental Science and Pollution Research International
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