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https://www.readbyqxmd.com/read/29156681/the-histone-demethylase-kdm3a-is-required-for-normal-epithelial-proliferation-ductal-elongation-and-tumor-growth-in-the-mouse-mammary-gland
#1
Li Qin, Yixiang Xu, Xiaobin Yu, Michael J Toneff, Dabing Li, Lan Liao, Jarrod D Martinez, Yi Li, Jianming Xu
Histone modification alters chromatin architecture to regulate gene transcription. KDM3A is a histone demethylase in the JmjC domain-containing protein family. It removes di- and mono- methyl residues from di- or mono-methylated lysine 9 of histone H3 (H3K9me2/me1). Recent studies have shown that Kdm3a plays an important role in self-renewal of embryonic stem cells, spermatogenesis, metabolism, sex determination and tumor angiogenesis. However, its role in mammary gland development and breast carcinogenesis remains unclear...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29155984/cysteine-rich-angiogenic-inducer-61-cyr61-a-novel-soluble-biomarker-of-acute-myocardial-injury-improves-risk-stratification-after-acute-coronary-syndromes
#2
Roland Klingenberg, Soheila Aghlmandi, Christoph Liebetrau, Lorenz Räber, Baris Gencer, David Nanchen, David Carballo, Alexander Akhmedov, Fabrizio Montecucco, Stefan Zoller, Chad Brokopp, Dik Heg, Peter Jüni, Helena Marti Soler, Pedro-Manuel Marques-Vidal, Peter Vollenweider, Oliver Dörr, Nicolas Rodondi, François Mach, Stephan Windecker, Ulf Landmesser, Arnold von Eckardstein, Christian W Hamm, Christian M Matter, Thomas F Lüscher
Aims: We aimed to identify a novel biomarker involved in the early events leading to an acute coronary syndrome (ACS) and evaluate its role in diagnosis and risk stratification. Methods and results: Biomarker identification was based on gene expression profiling. In coronary thrombi of ACS patients, cysteine-rich angiogenic inducer 61 (Cyr61, CCN1) gene transcripts were highly up-regulated compared with peripheral mononuclear cells. In a murine ischaemia-reperfusion model (I/R), myocardial Cyr61 expression was markedly increased compared with the controls...
November 16, 2017: European Heart Journal
https://www.readbyqxmd.com/read/29155669/centers-for-disease-control-and-prevention-public-health-response-to-humanitarian-emergencies-2007-2016
#3
Andrew T Boyd, Susan T Cookson, Mark Anderson, Oleg O Bilukha, Muireann Brennan, Thomas Handzel, Colleen Hardy, Farah Husain, Barbara Lopes Cardozo, Carlos Navarro Colorado, Cyrus Shahpar, Leisel Talley, Michael Toole, Michael Gerber
Humanitarian emergencies, including complex emergencies associated with fragile states or areas of conflict, affect millions of persons worldwide. Such emergencies threaten global health security and have complicated but predictable effects on public health. The Centers for Disease Control and Prevention (CDC) Emergency Response and Recovery Branch (ERRB) (Division of Global Health Protection, Center for Global Health) contributes to public health emergency responses by providing epidemiologic support for humanitarian health interventions...
December 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/29154413/isoindigo-3-4-difluorothiophene-polymer-acceptors-yield-all-polymer-bhj-solar-cells-with-7-efficiency
#4
Shengjian Liu, Yuliar Firdaus, Simil Thomas, Zhipeng Kan, Federico Cruciani, Sergei Lopatin, Jean-Luc M Bredas, Pierre M Beaujuge
Poly(isoindigo-alt-3,4-difluorothiophene) (PIID[2F]T) analogues used as "polymer acceptors" in bulk-heterojunction (BHJ) solar cells achieve >7% efficiency when used in conjunction with the polymer donor PBFTAZ (model system). Considering that most efficient polymer acceptor alternatives to fullerenes (e.g. PC61BM or its C71 derivative) are based on perylenediimide (PDI) or naphthalenediimide (NDI) motifs thus far, branched alkyl-substituted PIID[2F]T polymers are remarkably promising nonfullerene candidates for "all-polymer" BHJ solar cells...
November 20, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/29154304/assessment-of-work-engagement-among-dentists-in-hyderabad
#5
Madhuri Mukkavilli, Suhas Kulkarni, Dolar Doshi, Srikanth Reddy, Padma Reddy, Sahithi Reddy
BACKGROUND: Work engagement has been conceptualized as a relatively stable phenomenon, partly explained by the presence of specific job and organizational characteristics. Work engagement is important to the dental workforce worldwide, and the lack of it has been known to cause burnout. Positivity among dentists is essential as it is directly proportional to the patient's satisfaction towards the dental care. OBJECTIVE: To assess work engagement among dentists in the city of Hyderabad, India...
2017: Work: a Journal of Prevention, Assessment, and Rehabilitation
https://www.readbyqxmd.com/read/29153838/unsupervised-trajectory-analysis-of-single-cell-rna-seq-and-imaging-data-reveals-alternative-tuft-cell-origins-in-the-gut
#6
Charles A Herring, Amrita Banerjee, Eliot T McKinley, Alan J Simmons, Jie Ping, Joseph T Roland, Jeffrey L Franklin, Qi Liu, Michael J Gerdes, Robert J Coffey, Ken S Lau
Modern single-cell technologies allow multiplexed sampling of cellular states within a tissue. However, computational tools that can infer developmental cell-state transitions reproducibly from such single-cell data are lacking. Here, we introduce p-Creode, an unsupervised algorithm that produces multi-branching graphs from single-cell data, compares graphs with differing topologies, and infers a statistically robust hierarchy of cell-state transitions that define developmental trajectories. We have applied p-Creode to mass cytometry, multiplex immunofluorescence, and single-cell RNA-seq data...
November 7, 2017: Cell Systems
https://www.readbyqxmd.com/read/29152228/cd1-from-molecules-to-diseases
#7
REVIEW
D Branch Moody, Sara Suliman
The human cluster of differentiation (CD)1 system for antigen display is comprised of four types of antigen-presenting molecules, each with a distinct functional niche: CD1a, CD1b, CD1c, and CD1d. Whereas CD1 proteins were thought solely to influence T-cell responses through display of amphipathic lipids, recent studies emphasize the role of direct contacts between the T-cell receptor and CD1 itself. Moving from molecules to diseases, new research approaches emphasize human CD1-transgenic mouse models and the study of human polyclonal T cells in vivo or ex vivo in disease states...
2017: F1000Research
https://www.readbyqxmd.com/read/29151626/taxonomy-of-tricholoma-in-northern-europe-based-on-its-sequence-data-and-morphological-characters
#8
J Heilmann-Clausen, M Christensen, T G Frøslev, R Kjøller
Based on molecular and morphological data we investigated the taxonomy and phylogeny of the ectomycorrhizal genus Tricholoma in northern Europe. Our phylogenetic tree confirmed the presence of at least 72 well circumscribed species within the region. Of these, three species, viz. T. boreosulphurescens, T. bryogenum and T. ilkkae are described as new to science, based on morphological, distributional, ecological and molecular data. Several other terminal branches represent putative cryptic taxa nested within classical species or species groups...
June 2017: Persoonia
https://www.readbyqxmd.com/read/29150677/phosphatidylserine-decarboxylase-ct699-lysophospholipid-acyltransferase-ct775-and-acyl-acp-synthase-ct776-provide-membrane-lipid-diversity-to-chlamydia-trachomatis
#9
Eric Soupene, Frans A Kuypers
De novo lipid synthesis and scavenging of fatty acids (FA) are processes essential for the formation of the membrane of the human pathogen Chlamydia trachomatis (C.t.). Host FA are assimilated via esterification by the bacterial acyl-acyl carrier protein (ACP) synthase AasC but inhibitors of the host acyl-CoA synthetase enymes ACSL also impaired growth of C.t. in human cells. In E. coli, activity of AasC was sensitive to triacsin C and rosiglitazone G. The absence of a triacsin C-insensitive pathway and the increased inhibition by rosiglitazone G confirmed the sensitivity of the bacterial acyl-ACP synthase to these drugs in infected human cells...
November 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29147645/real-world-cure-rates-for-hepatitis-c-virus-treatments-that-include-simeprevir-and-or-sofosbuvir-are-comparable-to-clinical-trial-results
#10
Kian Bichoupan, Neeta Tandon, James F Crismale, Joshua Hartman, David Del Bello, Neal Patel, Sweta Chekuri, Alyson Harty, Michel Ng, Keith M Sigel, Meena B Bansal, Priya Grewal, Charissa Y Chang, Jennifer Leong, Gene Y Im, Lawrence U Liu, Joseph A Odin, Nancy Bach, Scott L Friedman, Thomas D Schiano, Ponni V Perumalswami, Douglas T Dieterich, Andrea D Branch
AIM: To assess the real-world effectiveness and cost of simeprevir (SMV), and/or sofosbuvir (SOF)-based therapy for chronic hepatitis C virus (HCV) infection. METHODS: The real-world performance of patients treated with SMV/SOF ± ribavirin (RBV), SOF/RBV, and SOF/RBV with pegylated-interferon (PEG) were analyzed in a consecutive series of 508 patients with chronic HCV infection treated at a single academic medical center. Patients with genotypes 1 through 4 were included...
November 12, 2017: World Journal of Virology
https://www.readbyqxmd.com/read/29146526/application-of-the-sum-peak-method-to-activity-standardizations-of-152-eu-sources-in-lnmri-br
#11
A L Ferreira Filho, R da Silva, P A L da Cruz, C J da Silva, R Poledna, M T F Araújo, C F Arcanjo, J U Delgado, R T Lopes
The sum-peak method, an absolute measurement technique that uses coincidence counting and γ-ray spectrometry, was applied to activity standardization of (152)Eu sources. The decay branch used was that of (152)Sm, as it is almost entirely electron capture and exhibits X-rays with a high probability of coincidence with the 121.8keVgamma rays, as evidenced by the matrix technique used for complex decay schemes, a method for deriving counting rate equations describing coincidence summing of gamma and X-rays. The result was compared with the calibration performed by ionization chamber traceable to BIPM...
October 7, 2017: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/29144232/saccharopolyspora-aidingensis-sp-nov-an-actinomycete-isolated-from-a-salt-lake
#12
Zhan-Feng Xia, Xiao-Xia Luo, Chuan-Xing Wan, Li-Li Zhang
A novel halophilic actinomycete strain, designated TRM 46074(T), was isolated from Aiding salt lake in Turpan Basin, north-west China. Strain TRM 46074(T) was aerobic, Gram-stain-positive and grew optimally with 12 % (w/v) NaCl. The strain was observed to produce sparse aerial mycelium with long chains of spores that were non-motile and oval or spherical in shape with a rough or smooth surface; substrate mycelium was branched and well developed. The cell wall was determined to contain meso-diaminopimelic acid; the diagnostic whole-cell sugars were galactose, arabinose and ribose...
March 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/29144026/heart-rate-variability-and-implication-for-sport-concussion
#13
REVIEW
Scott A Bishop, Ryan T Dech, Przemyslaw Guzik, J Patrick Neary
Finding sensitive and specific markers for sports-related concussion is both challenging and clinically important. Such biomarkers might be helpful in the management of patients with concussion (i.e. diagnosis, monitoring and risk prediction). Among many parameters, blood flow-pressure metrics and heart rate variability (HRV) have been used to gauge concussion outcomes. Reports on the relation between HRV and both acute and prolonged concussion recovery are conflicting. While some authors report on differences in the low-frequency (LF) component of HRV during postural manipulations and postexercise conditions, others observe no significant differences in various HRV measures...
November 16, 2017: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/29142826/microbial-synthesis-of-a-branched-chain-ester-platform-from-organic-waste-carboxylates
#14
Donovan S Layton, Cong T Trinh
Processing of lignocellulosic biomass or organic wastes produces a plethora of chemicals such as short, linear carboxylic acids, known as carboxylates, derived from anaerobic digestion. While these carboxylates have low values and are inhibitory to microbes during fermentation, they can be biologically upgraded to high-value products. In this study, we expanded our general framework for biological upgrading of carboxylates to branched-chain esters by using three highly active alcohol acyltransferases (AATs) for alcohol and acyl CoA condensation and modulating the alcohol moiety from ethanol to isobutanol in the modular chassis cell...
December 2016: Metabolic Engineering Communications
https://www.readbyqxmd.com/read/29142820/excessive-by-product-formation-a-key-contributor-to-low-isobutanol-yields-of-engineered-saccharomyces-cerevisiae-strains
#15
N Milne, S A Wahl, A J A van Maris, J T Pronk, J M Daran
It is theoretically possible to engineer Saccharomyces cerevisiae strains in which isobutanol is the predominant catabolic product and high-yielding isobutanol-producing strains are already reported by industry. Conversely, isobutanol yields of engineered S. cerevisiae strains reported in the scientific literature typically remain far below 10% of the theoretical maximum. This study explores possible reasons for these suboptimal yields by a mass-balancing approach. A cytosolically located, cofactor-balanced isobutanol pathway, consisting of a mosaic of bacterial enzymes whose in vivo functionality was confirmed by complementation of null mutations in branched-chain amino acid metabolism, was expressed in S...
December 2016: Metabolic Engineering Communications
https://www.readbyqxmd.com/read/29142332/the-interstellar-chemistry-of-c3h-and-c3h2-isomers
#16
Jean-Christophe Loison, Marcelino Agúndez, Valentine Wakelam, Evelyne Roueff, Pierre Gratier, Núria Marcelino, Dianailys Nuñez Reyes, José Cernicharo, Maryvonne Gerin
We report the detection of linear and cyclic isomers of C3H and C3H2 towards various starless cores and review the corresponding chemical pathways involving neutral (C3Hx with x=1,2) and ionic (C3Hx(+) with x = 1,2,3) isomers. We highlight the role of the branching ratio of electronic Dissociative Recombination (DR) reactions of C3H2(+) and C3H3(+) isomers showing that the statistical treatment of the relaxation of C3H(*) and C3H2(*) produced in these DR reactions may explain the relative c,l-C3H and c,l-C3H2 abundances...
October 1, 2017: Monthly Notices of the Royal Astronomical Society
https://www.readbyqxmd.com/read/29142327/the-circumstellar-envelope-around-the-s-type-agb-star-w-aql-effects-of-an-eccentric-binary-orbit
#17
S Ramstedt, S Mohamed, W H T Vlemmings, T Danilovich, M Brunner, E De Beck, E M L Humphreys, M Lindqvist, M Maercker, H Olofsson, F Kerschbaum, G Quintana-Lacaci
Context: Recent observations at subarcsecond resolution, now possible also at submillimeter wavelengths, have shown intricate circumstellar structures around asymptotic giant branch (AGB) stars, mostly attributed to binary interaction. The results presented here are part of a larger project aimed at investigating the effects of a binary companion on the morphology of circumstellar envelopes (CSEs) of AGB stars. Aims: AGB stars are characterized by intense stellar winds that build CSEs around the stars...
September 21, 2017: Astronomy and Astrophysics
https://www.readbyqxmd.com/read/29141216/slc3a2-mediates-branched-chain-amino-acid-dependent-maintenance-of-regulatory-t-cells
#18
Kayo Ikeda, Makoto Kinoshita, Hisako Kayama, Shushi Nagamori, Pornparn Kongpracha, Eiji Umemoto, Ryu Okumura, Takashi Kurakawa, Mari Murakami, Norihisa Mikami, Yasunori Shintani, Satoko Ueno, Ayatoshi Andou, Morihiro Ito, Hideki Tsumura, Koji Yasutomo, Keiichi Ozono, Seiji Takashima, Shimon Sakaguchi, Yoshikatsu Kanai, Kiyoshi Takeda
Foxp3(+) regulatory T (Treg) cells, which suppress immune responses, are highly proliferative in vivo. However, it remains unclear how the active replication of Treg cells is maintained in vivo. Here, we show that branched-chain amino acids (BCAAs), including isoleucine, are required for maintenance of the proliferative state of Treg cells via the amino acid transporter Slc3a2-dependent metabolic reprogramming. Mice fed BCAA-reduced diets showed decreased numbers of Foxp3(+) Treg cells with defective in vivo proliferative capacity...
November 14, 2017: Cell Reports
https://www.readbyqxmd.com/read/29136730/-application-of-the-descending-branch-of-the-lateral-circumflex-femoral-artery-in-the-coronary-artery-bypass-grafting-operation
#19
X J Luo, W Wang, Y T Wang, Y Yang, H Li, X Wang, S S Hu
Objective: To investigate the technical method for harvesting and application of the descending branch of the lateral circumflex femoral artery (DBLCFA) in the coronary artery bypass grafting (CABG) operation. Methods: Between December 2016 and April 2017, 19 patients were arranged to use DBLCFA and got CT angiography (CTA) of pelvic and femoral arteries pre-operative at Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College. Finally, DBLCFA was harvested in 16 patients (including 2 female patients, with a mean age of (47...
November 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/29134723/the-ct-defined-hyperdense-arterial-sign-as-a-marker-for-acute-intracerebral-large-vessel-occlusion
#20
Jaims Lim, Jordan A Magarik, Michael T Froehler
BACKGROUND AND PURPOSE: To determine the sensitivity and specificity of the hyperdense artery sign (HAS) on thin-slice non-contrast computed tomography (NCCT), combined with brief clinical history, as an indicator for large vessel occlusion (LVO) in the setting of acute ischemic stroke. METHODS: Ninety-nine LVO and 102 non-LVO acute ischemic stroke patients were retrospectively identified from a prospective database at a single institution. After reviewing each patient's neurologic presentation based on his or her initial National Institute of Health Stroke Scale (NIHSS) and neurologic evaluation, all thin (1 mm) and thick (5 mm) NCCT scans were reviewed for the HAS...
November 14, 2017: Journal of Neuroimaging: Official Journal of the American Society of Neuroimaging
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