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https://www.readbyqxmd.com/read/28346898/modelling-of-escherichia-coli-concentrations-in-bathing-water-at-microtidal-coasts
#1
A Palazón, I López, L Aragonés, Y Villacampa, F J Navarro-González
Monitoring of the quality of bathing water in line with the European Commission bathing water directive (Directive 2006/7/EC) is a significant economic expense for those countries with great lengths of coastline. In this study a numerical model based on finite elements is generated whose objective is partially substituting the microbiological analysis of the quality of coastal bathing waters. According to a study of the concentration of Escherichia coli in 299 Spanish Mediterranean beaches, it was established that the most important variables that influence the concentration are: monthly sunshine hours, mean monthly precipitation, number of goat cattle heads, population density, presence of Posidonia oceanica, UV, urbanization level, type of sediment, wastewater treatment ratio, salinity, distance to the nearest discharge, and wave height perpendicular to the coast...
March 24, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28346429/deletion-of-endothelial-cell-specific-liver-kinase-b1-increases-angiogenesis-and-tumor-growth-via-vascular-endothelial-growth-factor
#2
W Zhang, Y Ding, C Zhang, Q Lu, Z Liu, K Coughlan, I Okon, M-H Zou
Liver kinase B1 (LKB1) is a serine/threonine protein kinase ubiquitously expressed in mammalian cells. It was first identified in Peutz-Jeghers syndrome as a tumor suppressor gene. Whether endothelial LKB1 regulates angiogenesis and tumor growth is unknown. In this study, we generated endothelial cell-specific LKB1-knockout (LKB1(endo-/-)) mice by crossbreeding vascular endothelial-cadherin-Cre mice with LKB1(flox/flox) mice. Vascular endothelial growth factor (VEGF) level was highly co-stained in endothelial cells but not in macrophages in LKB1(endo-/-) mice...
March 27, 2017: Oncogene
https://www.readbyqxmd.com/read/28346423/mob1-yap1-taz-nkx2-1-axis-controls-bronchioalveolar-cell-differentiation-adhesion-and-tumour-formation
#3
K Otsubo, H Goto, M Nishio, K Kawamura, S Yanagi, W Nishie, T Sasaki, T Maehama, H Nishina, K Mimori, T Nakano, H Shimizu, T W Mak, K Nakao, Y Nakanishi, A Suzuki
Mps One Binder Kinase Activator (MOB)1A/1B are core components of the Hippo pathway. These proteins, which coactivate LArge Tumour Suppressor homologue kinases, are also tumour suppressors. To investigate MOB1A/B's roles in normal physiology and lung cancer, we generated doxycycline (Dox)-inducible, bronchioalveolar epithelium-specific, null mutations of MOB1A/B in mice (SPC-rtTA/(tetO)7-Cre/Mob1a(flox/flox)/Mob1b(-/-); termed luMob1DKO mice). Most mutants (70%) receiving Dox in utero (luMob1DKO (E6.5-18.5) mice) died of hypoxia within 1 h post-birth...
March 27, 2017: Oncogene
https://www.readbyqxmd.com/read/28346330/differentiation-of-impaired-from-preserved-hemodynamics-in-patients-with-fontan-circulation-using-real-time-phase-velocity-cardiovascular-magnetic-resonance
#4
Hermann Körperich, Katja Müller, Peter Barth, Jürgen Gieseke, Nikolaus Haas, Ingram Schulze-Neick, Wolfgang Burchert, Deniz Kececioglu, Kai T Laser
PURPOSE: Progressive impairment of hemodynamics in patients with Fontan circulation is common, multifactorial, and associated with decreased quality of life and increased morbidity. We sought to assess hemodynamic differences between patients with preserved (preserved Fontans) and those with impaired circulation (impaired Fontans) after pulmonary vasodilation using oxygen and under forced breathing conditions. MATERIALS AND METHODS: Real-time phase-contrast cardiovascular magnetic resonance was performed using non-ECG triggered echo-planar imaging (temporal resolution=24 to 28 ms) in the ascending aorta (AAo) and superior vena cava (SVC)/inferior vena cava (IVC) on room air, after 100% oxygen inhalation (4 L/min; 10 min) and on forced breathing in 29 Fontan patients (17...
March 24, 2017: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/28346242/genetic-variation-in-gabr%C3%AE-1-and-the-risk-for-developing-alcohol-dependence
#5
William A McCabe, Michael J Way, Kush Ruparelia, Susanne Knapp, M Adam Ali, Quentin M Anstee, Howard C Thomas, Andrew McQuillin, Marsha Y Morgan
Associations between the γ-aminobutyric acid type-A receptors (GABAA) and alcohol dependence risk have been reported, although the receptor subunit driving the association is unclear. Recent work in mice has highlighted a possible role for variants in the Gabr β1 subunit (Gabrβ1) in alcohol dependence risk, although this gene does not contain any common nonsynonymous variants in humans. However, the GABAA receptor is a heteropentamer so multiple potential variants within the gene complex could generate the alcohol dependence phenotype...
March 24, 2017: Psychiatric Genetics
https://www.readbyqxmd.com/read/28344560/nitric-oxide-has-a-concentration-dependent-effect-on-the-cell-cycle-acting-via-ein2-in-arabidopsis-thaliana-cultured-cells
#6
Galina V Novikova, Luis A J Mur, Alexander V Nosov, Artem A Fomenkov, Kirill S Mironov, Anna S Mamaeva, Evgeny S Shilov, Victor Y Rakitin, Michael A Hall
Ethylene is known to influence the cell cycle (CC) via poorly characterized roles whilst nitric oxide (NO) has well-established roles in the animal CC but analogous role(s) have not been reported for plants. As NO and ethylene signaling events often interact we examined their role in CC in cultured cells derived from Arabidopsis thaliana wild-type (Col-0) plants and from ethylene-insensitive mutant ein2-1 plants. Both NO and ethylene were produced mainly during the first 5 days of the sub-cultivation period corresponding to the period of active cell division...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28344151/enhancing-oligodendrocyte-differentiation-by-transient-transcription-activation-via-dna-nanoparticle-mediated-transfection
#7
Xiaowei Li, Stephany Y Tzeng, Camila Gadens Zamboni, Vassilis E Koliatsos, Guo-Li Ming, Jordan J Green, Hai-Quan Mao
Current approaches to derive oligodendrocytes from human pluripotent stem cells (hPSCs) need extended exposure of hPSCs to growth factors and small molecules, which limits their clinical application because of the lengthy culture time required and low generation efficiency of myelinating oligodendrocytes. Compared to extrinsic growth factors and molecules, oligodendrocyte differentiation and maturation can be more effectively modulated by regulation of the cell transcription network. In the developing central nervous system (CNS), two basic helix-loop-helix transcription factors, Olig1 and Olig2, are decisive in oligodendrocyte differentiation and maturation...
March 23, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28343802/-the-effect-of-methylphenidate-on-appetite-and-weight
#8
R Bou Khalil, N Fares, Y Saliba, J Tamraz, S Richa
OBJECTIVES: To better delineate in the medical literature the effect of methylphenidate on weight and appetite. METHODS: A search on PubMed was carried out for articles published with no restrictions on language or year of publication using the terms: "methylphenidate"; "weight"; "appetite". RESULTS: Methylphenidate increases dopamine and noradrenaline in synapses because of its blockage of the transporters of these monoamines in the frontal cortex and insular lobe...
March 23, 2017: L'Encéphale
https://www.readbyqxmd.com/read/28341913/medium-chain-length-poly-3-hydroxyalkanoates-carbon-nanotubes-composite-anode-enhances-the-performance-of-microbial-fuel-cell
#9
Y Hindatu, M S M Annuar, R Subramaniam, A M Gumel
Insufficient power generation from a microbial fuel cell (MFC) hampers its progress towards utility-scale development. Electrode modification with biopolymeric materials could potentially address this issue. In this study, medium-chain-length poly-3-hydroxyalkanoates (PHA)/carbon nanotubes (C) composite (CPHA) was successfully applied to modify the surface of carbon cloth (CC) anode in MFC. Characterization of the functional groups on the anodic surface and its morphology was carried out. The CC-CPHA composite anode recorded maximum power density of 254 mW/m(2), which was 15-53% higher than the MFC operated with CC-C (214 mW/m(2)) and pristine CC (119 mW/m(2)) as the anode in a double-chambered MFC operated with Escherichia coli as the biocatalyst...
March 25, 2017: Bioprocess and Biosystems Engineering
https://www.readbyqxmd.com/read/28341473/pneumonia-after-cardiac-surgery-experience-of-the-national-institutes-of-health-canadian-institutes-of-health-research-cardiothoracic-surgical-trials-network
#10
Gorav Ailawadi, Helena L Chang, Patrick T O'Gara, Karen O'Sullivan, Y Joseph Woo, Joseph J DeRose, Michael K Parides, Vinod H Thourani, Sophie Robichaud, A Marc Gillinov, Wendy C Taddei-Peters, Marissa A Miller, Louis P Perrault, Robert L Smith, Lyn Goldsmith, Keith A Horvath, Kristen Doud, Kim Baio, Annetine C Gelijns, Alan J Moskowitz, Emilia Bagiella, John H Alexander, Alexander Iribarne
RATIONALE: Pneumonia remains the most common major infection after cardiac surgery despite numerous preventive measures. OBJECTIVES: To prospectively examine the timing, pathogens, and risk factors, including modifiable management practices, for postoperative pneumonia and estimate its impact on clinical outcomes. METHODS: A total of 5158 adult cardiac surgery patients were enrolled prospectively in a cohort study across 10 centers. All infections were adjudicated by an independent committee...
February 9, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28341160/metabolic-network-failures-in-alzheimer-s-disease-a-biochemical-road%C3%A2-map
#11
Jon B Toledo, Matthias Arnold, Gabi Kastenmüller, Rui Chang, Rebecca A Baillie, Xianlin Han, Madhav Thambisetty, Jessica D Tenenbaum, Karsten Suhre, J Will Thompson, Lisa St John-Williams, Siamak MahmoudianDehkordi, Daniel M Rotroff, John R Jack, Alison Motsinger-Reif, Shannon L Risacher, Colette Blach, Joseph E Lucas, Tyler Massaro, Gregory Louie, Hongjie Zhu, Guido Dallmann, Kristaps Klavins, Therese Koal, Sungeun Kim, Kwangsik Nho, Li Shen, Ramon Casanova, Sudhir Varma, Cristina Legido-Quigley, M Arthur Moseley, Kuixi Zhu, Marc Y R Henrion, Sven J van der Lee, Amy C Harms, Ayse Demirkan, Thomas Hankemeier, Cornelia M van Duijn, John Q Trojanowski, Leslie M Shaw, Andrew J Saykin, Michael W Weiner, P Murali Doraiswamy, Rima Kaddurah-Daouk
INTRODUCTION: The Alzheimer's Disease Research Summits of 2012 and 2015 incorporated experts from academia, industry, and nonprofit organizations to develop new research directions to transform our understanding of Alzheimer's disease (AD) and propel the development of critically needed therapies. In response to their recommendations, big data at multiple levels are being generated and integrated to study network failures in disease. We used metabolomics as a global biochemical approach to identify peripheral metabolic changes in AD patients and correlate them to cerebrospinal fluid pathology markers, imaging features, and cognitive performance...
March 21, 2017: Alzheimer's & Dementia: the Journal of the Alzheimer's Association
https://www.readbyqxmd.com/read/28341049/accuracy-of-breeding-values-in-small-genotyped-populations-using-different-sources-of-external-information-a-simulation-study
#12
S Andonov, D A L Lourenco, B O Fragomeni, Y Masuda, I Pocrnic, S Tsuruta, I Misztal
Genetically linked small and large dairy cattle populations were simulated to test the effect of different sources of information from foreign populations on the accuracy of predicting breeding values for young animals in a small population. A large dairy cattle population (PL) with >20 generations was simulated, and a small subpopulation (PS) with 3 generations was formed as a related population, including phenotypes and genomic information. Predicted breeding values for young animals in the small population were calculated using BLUP and single-step genomic BLUP (ssGBLUP) in 4 different scenarios: (S1) 3,166 phenotypes, 22,855 pedigree animals, and 1,000 to 6,000 genotypes for PS; (S2) S1 plus genomic estimated breeding value (GEBV) for 4,475 sires from PL as external information; (S3) S1 plus 221,580 phenotypes, 402,829 pedigree animals, and 53,558 genotypes for PL; and (S4) single nucleotide polymorphism (SNP) effects calculated based on PL data...
January 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28340809/corrected-panel-reactive-antibody-positivity-rates-for-hypersensitized-patients-in-turkish-population-with-calculated-panel-reactive-antibody-software
#13
S T Karadeniz, S U Akgul, Y Ogret, H S Ciftci, A Bayraktar, H Bakkaloglu, Y Caliskan, K Yelekci, A Turkmen, A E Aydin, F S Oguz, M Carin, F Aydin
INTRODUCTION: High rates of panel-reactive antibody (PRA) may decrease the chance of kidney transplantation and may result in long waiting periods before transplantation. The calculated PRA (cPRA) is performed based on unacceptable HLA antigens. These antigens are identified by a program that was created based on the antibodies that developed against the HLA antigens circulating in serum and on the risk of binding of these antibodies to antigens. The antigen profile of the population and antigen frequencies can be measured, and more realistic cPRA positivity rates may be obtained using this method...
April 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28339926/study-on-the-expression-of-human-lysozyme-in-oviduct-bioreactor-mediated-by-recombinant-avian-adeno-associated-virus1
#14
A P Wang, Y J Wang, S Wu, W Y Zuo, C M Guo, W M Hong, S Y Zhu
Due to its antimicrobial properties and low toxicity, human lysozyme (hLYZ) has broad application in the medical field and as a preservative used by the food industry. However, limited availability hinders its widespread use. Hence, we constructed a recombinant avian adeno-associated virus (rAAAV) that would specifically express hLYZ in the chicken oviduct and harvested hLYZ from the egg whites of laying hens. The oviduct-specific human lysozyme expression cassette flanked by avian adeno-associated virus (AAAV) inverted terminal repeats (ITRs) was subcloned into the modified baculovirus transfer vector pFBX, and then the recombinant baculovirus rBac-ITRLYZ was generated...
March 2, 2017: Poultry Science
https://www.readbyqxmd.com/read/28339907/o-linked-%C3%AE-n-acetylglucosamine-modification-of-proteins-is-essential-for-foot-process-maturation-and-survival-in-podocytes
#15
Shinya Ono, Shinji Kume, Mako Yasuda-Yamahara, Kosuke Yamahara, Naoko Takeda, Masami Chin-Kanasaki, Hisazumi Araki, Osamu Sekine, Hideki Yokoi, Masashi Mukoyama, Takashi Uzu, Shin-Ichi Araki, Hiroshi Maegawa
Background.: O-linked β- N -acetylglucosamine modification O-GlcNAcylation) is a post-translational modification of intracellular proteins, serving as a nutrient sensor. Growing evidence has demonstrated its physiological and pathological importance in various mammalian tissues. This study examined the physiological role of O-GlcNAcylation in podocyte function and development. Methods.: O-GlcNAc transferase (Ogt) is a critical enzyme for O-GlcNAcylation and resides on the X chromosome...
February 27, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28339431/perioperative-ketamine-administration-for-thoracotomy-pain
#16
Daniel W Moyse, Alan D Kaye, James H Diaz, Muhammad Y Qadri, David Lindsay, Srinivas Pyati
BACKGROUND: Of all the postsurgical pain conditions, thoracotomy pain poses a particular therapeutic challenge in terms of its prevalence, severity, and ensuing postoperative morbidity. Multiple pain generators contribute to the severity of post-thoracotomy pain, and therefore a multimodal analgesic therapy is considered to be a necessary strategy. Along with opioids, thoracic epidural analgesia, and paravertebral blocks, N-Methyl-D-Aspartate (NMDA) receptor antagonists such as ketamine have been used as adjuvants to improve analgesia...
March 2017: Pain Physician
https://www.readbyqxmd.com/read/28339407/upper-extremity-muscle-activation-in-children-with-unilateral-cerebral-palsy-during-an-auditory-cued-repetitive-task-effects-on-bimanual-coordination
#17
Jeanne Charles
PURPOSE: The aim of this exploratory study was to investigate mirror muscle activation in the upper limbs of children with unilateral cerebral palsy during an auditory-cued repetitive squeezing task and to compare upper limb muscle activation patterns to typically developing peers engaged in the same task. METHODS: A convenience sample of six children with unilateral cerebral palsy and six typically developing peers (7-17 y) participated in the study. Muscle activity was measured using a 16 channel Zerowire EMG system (Noraxon, USA Inc...
2017: Journal of Pediatric Rehabilitation Medicine
https://www.readbyqxmd.com/read/28339275/ultrafast-photoinduced-electric-polarization-switching-in-a-hydrogen-bonded-ferroelectric-crystal
#18
K Iwano, Y Shimoi, T Miyamoto, D Hata, M Sotome, N Kida, S Horiuchi, H Okamoto
Croconic acid crystals show proton displacive-type ferroelectricity with a large spontaneous polarization reaching 20  μC/cm^{2}, which originates from the strong coupling of proton and π-electron degrees of freedom. Such a coupling makes us expect a large polarization change by photoirradiations. Optical-pump second-harmonic-generation-probe experiments reveal that a photoexcited croconic-acid crystal loses the ferroelectricity substantially with a maximum quantum efficiency of more than 30 molecules per one absorbed photon...
March 10, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28339245/precision-control-of-the-electron-longitudinal-bunch-shape-using-an-emittance-exchange-beam-line
#19
G Ha, M H Cho, W Namkung, J G Power, D S Doran, E E Wisniewski, M Conde, W Gai, W Liu, C Whiteford, Q Gao, K-J Kim, A Zholents, Y-E Sun, C Jing, P Piot
We report on the experimental generation of relativistic electron bunches with a tunable longitudinal bunch shape. A longitudinal bunch-shaping (LBS) beam line, consisting of a transverse mask followed by a transverse-to-longitudinal emittance exchange (EEX) beam line, is used to tailor the longitudinal bunch shape (or current profile) of the electron bunch. The mask shapes the bunch's horizontal profile, and the EEX beam line converts it to a corresponding longitudinal profile. The Argonne wakefield accelerator rf photoinjector delivers electron bunches into a LBS beam line to generate a variety of longitudinal bunch shapes...
March 10, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28339132/formation-of-endohedral-metallofullerene-emf-ions-of-mnc2m-m%C3%A2-%C3%A2-la-y-n%C3%A2-%C3%A2-%C3%A2-6-50%C3%A2-%C3%A2-%C3%A2-2%C3%A2-m%C3%A2-%C3%A2-%C3%A2-194-in-the-laser-ablation-process-with-graphene-as-precursor
#20
Xianglei Kong, Xiaodi Bao
RATIONALE: Graphene has been found to be a versatile precursor for the generation of mono-endohedral metallofullerenes (EMFs) of alkali and alkali earth metal atoms. Thus, it is important to investigate whether graphene is also a good precursor for the generation of EMFs including multi-metal atoms or some transition metal atoms. METHODS: Experiments were performed on a 7.0 T Fourier transform ion cyclotron resonance (FT ICR) mass spectrometer. Laser ablation mass spectra were obtained by laser irradiation on mixtures of graphene and LaCl3 , YCl3 or HAuCl4 on a stainless steel plate...
March 24, 2017: Rapid Communications in Mass Spectrometry: RCM
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