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https://www.readbyqxmd.com/read/28107376/deletion-of-ph-regulator-pac-3-affects-cellulase-and-xylanase-activity-during-sugarcane-bagasse-degradation-by-neurospora-crassa
#1
Amanda Cristina Campos Antoniêto, Wellington Ramos Pedersoli, Lílian Dos Santos Castro, Rodrigo da Silva Santos, Aline Helena da Silva Cruz, Karoline Maria Vieira Nogueira, Rafael Silva-Rocha, Antonio Rossi, Roberto Nascimento Silva
Microorganisms play a vital role in bioethanol production whose usage as fuel energy is increasing worldwide. The filamentous fungus Neurospora crassa synthesize and secrete the major enzymes involved in plant cell wall deconstruction. The production of cellulases and hemicellulases is known to be affected by the environmental pH; however, the regulatory mechanisms of this process are still poorly understood. In this study, we investigated the role of the pH regulator PAC-3 in N. crassa during their growth on sugarcane bagasse at different pH conditions...
2017: PloS One
https://www.readbyqxmd.com/read/28106984/pore-space-partition-in-metal-organic-frameworks
#2
Quan-Guo Zhai, Xianhui Bu, Xiang Zhao, Dong-Sheng Li, Pingyun Feng
Metal-organic framework (MOF) materials have emerged as one of the favorite crystalline porous materials (CPM) because of their compositional and geometric tunability and many possible applications. In efforts to develop better MOFs for gas storage and separation, a number of strategies including creation of open metal sites and implantation of Lewis base sites have been used to tune host-guest interactions. In addition to these chemical factors, the geometric features such as pore size and shape, surface area, and pore volume also play important roles in sorption energetics and uptake capacity...
January 20, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28104464/genetic-defects-in-pi3k%C3%AE-affect-b-cell-differentiation-and-maturation-leading-to-hypogammaglobulineamia-and-recurrent-infections
#3
Marjolein Wentink, Virgil Dalm, Arjan C Lankester, Pauline A van Schouwenburg, Liesbeth Schölvinck, Tomas Kalina, Radana Zachova, Anna Sediva, Annechien Lambeck, Ingrid Pico-Knijnenburg, Jacques J M van Dongen, Malgorzata Pac, Ewa Bernatowska, Martin van Hagen, Gertjan Driessen, Mirjam van der Burg
BACKGROUND: Mutations in PIK3CD and PIK3R1 cause activated PI3K-δ syndrome (APDS) by dysregulation of the PI3K-AKT pathway. METHODS: We studied precursor and peripheral B-cell differentiation and apoptosis via flowcytometry. Furthermore, we performed AKT-phosphorylation assays and somatic hypermutations (SHM) and class switch recombination (CSR) analysis. RESULTS: We identified 13 patients of whom 3 had new mutations in PIK3CD or PIK3R1. Patients had low total B-cell numbers with increased frequencies of transitional B cells and plasmablasts, while the precursor B-cell compartment in bone marrow was relatively normal...
January 16, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/28104343/thyroid-pathology-in-deer-mice-peromyscus-maniculata-from-a-reclaimed-mine-site-on-the-athabasca-oil-sands
#4
Ahmad Movasseghi, Jaime Rodríguez-Estival, Judit E G Smits
Information on naturally occurring thyroid disease in wild animals in general and in small mammals specifically is extremely limited. In the present field-based work, we investigated the structure and function of thyroid glands of deer mice (Peromyscus maniculata) studied as sentinels of ecosystem sustainability on reclaimed areas post-mining on the oil sands of northeastern Alberta, because of their greater sensitivity to contaminants relative to meadow voles (Microtus pennsylvanicus) on the same sites. Extraction of bitumen in the oil sands of northeastern Alberta, results in the release of contaminants including polycyclic aromatic compounds (PACs), metals, and metalloids to the environment that have a measurable biological cost to wildlife living in the affected areas...
January 16, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28100853/antioxidant-and-antimicrobial-properties-of-bioactive-phytochemicals-from-cranberry
#5
Monika Baranowska, Agnieszka Bartoszek
In the rational human diet, the important role of fruits and vegetables, which are a source of bioactive phytochemicals, is emphasized. Among fruits particular attention, due to a number of documented health-promoting properties, is focused on cranberry. This fruit is characterized by the high content of antioxidant phenolic compounds, which may support the natural antioxidant defense system of the body in the prevention of damage caused by oxidative stress induced by reactive oxygen species (ROS). Therefore, cranberry is suggested for the prevention of civilization diseases such as atherosclerosis, hypertension and cancer, whose etiology is associated directly with oxidative stress...
December 31, 2016: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/28099728/effects-of-an-intervention-initiated-by-a-national-society-to-improve-postabortion-care-in-rural-facilities-in-burkina-faso
#6
Sibraogo Kiemtoré, Hyacinthe Zamané, Danlotoma P Kaïn, Yobi A Sawadogo, Issa Ouédraogo, Ali Ouédraogo, Jean Lankoandé
OBJECTIVE: To evaluate the results of an intervention by the Societé de Gynécologues et Obstétriciens du Burkina (SOGOB) to improve postabortion care (PAC) in rural areas of Burkina Faso. METHODS: From June 1, 2012, to May 31, 2013, SOGOB increased capacity for PAC by providing training in health care and equipment to 45 rural health facilities. Performance in PAC in the year before intervention (June 1, 2011, to May 31, 2012) was compared with that in the year following intervention (June 1, 2013, to May 31, 2014)...
February 2017: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/28099294/examination-of-pediatric-radiation-dose-delivered-after-cervical-spine-trauma
#7
Laura K Somppi, Kristin A Frenn, Anupam B Kharbanda
OBJECTIVES: Pediatric cervical spine injuries (CSIs) are rare but potentially fatal injuries. Plain radiographs (x-rays) and computed tomography (CT) are used to diagnose CSIs. Given concerns related to radiation exposure, the utility of x-rays in diagnosing CSIs compared with other forms of imaging must be examined. METHODS: Patients younger than 19 years presenting with possible CSI to an urban tertiary care hospital who received imaging for possible CSI between January 1, 2011, and December 31, 2013, were included...
January 17, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/28098976/adsorption-neutralization-model-and-floc-growth-kinetics-properties-of-aluminum-coagulants-based-on-sips-and-boltzmann-equation
#8
Zhen Wu, Xian Zhang, Chunjiao Zhou, Jing-Lin Pang, Panyue P Zhang
Single-molecule aluminum salt AlCl3, medium polymerized polyaluminium chloride (PAC) and high polymerized polyaluminium chloride (HPAC) were prepared in laboratory. The characteristics and coagulation properties of these prepared aluminum salts were investigated. The Langmuir, Freundlich and Sips adsorption isotherms were firstly used to describe the adsorption neutralization process in coagulation, and the Boltzmann equation was used to fit the reaction kinetics of floc growth in flocculation. It was novel to find that the experimental data fitted well with the Sips and Boltzmann equation, and the significance of parameters in the equations was discussed simultaneously...
January 18, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28094156/removal-of-toxic-metals-during-biological-treatment-of-landfill-leachates
#9
T Robinson
Progressive implementation of the European Water Framework Directive has resulted in substantial changes in limits for discharges of heavy metals both to watercourses, and to sewer. The objective of this paper is to provide original, real, full-scale data obtained for removal of metals during aerobic biological leachate treatment, and also to report on studies carried out to look at further trace metal removal. Polishing technologies examined and investigated include; the incorporation of ultrafiltration (UF) membranes into biological treatment systems, the use of ion exchange, and of activated carbon polishing processes...
January 13, 2017: Waste Management
https://www.readbyqxmd.com/read/28090304/the-prognostic-significance-of-pulmonary-arterial-capacitance-in-pulmonary-arterial-hypertension-single-center-experience
#10
Nadine Al-Naamani, Ioana R Preston, Nicholas S Hill, Kari E Roberts
This study explores the prognostic utility of pulmonary arterial capacitance (PAC) in a diverse cohort of patients with pulmonary arterial hypertension (PAH) from a tertiary referral center and compares it with the prognostic utility of other hemodynamic parameters. PAC is a strong independent predictor of mortality in patients with PAH.
December 2016: Pulmonary Circulation
https://www.readbyqxmd.com/read/28089963/pda-paper
#11
Emma Ramnarine
Changes occur throughout a product's commercial life - changes in raw materials, manufacturing equipment, processes, sites, analytical methods, and suppliers. A product Marketing Authorization Holder (MAH) can introduce manufacturing changes as part of continual improvement to enable implementation of innovative technologies, exchange obsolete equipment, or improve the availability of drug products for patients. Changes are also made to comply with evolving regulatory requirements. Changes are a common and unavoidable part of a product's lifecycle...
January 15, 2017: PDA Journal of Pharmaceutical Science and Technology
https://www.readbyqxmd.com/read/28088179/chronic-constipation-diagnosis-and-treatment-evaluation-the-chro-co-di-t-e-study
#12
Massimo Bellini, Paolo Usai-Satta, Antonio Bove, Renato Bocchini, Francesca Galeazzi, Edda Battaglia, Pietro Alduini, Elisabetta Buscarini, Gabrio Bassotti
BACKGROUND: According to Rome criteria, chronic constipation (CC) includes functional constipation (FC) and irritable bowel syndrome with constipation (IBS-C). Some patients do not meet these criteria (No Rome Constipation, NRC). The aim of the study was is to evaluate the various clinical presentation and management of FC, IBS-C and NRC in Italy. METHODS: During a 2-month period, 52 Italian gastroenterologists recorded clinical data of FC, IBS-C and NRC patients, using Bristol scale, PAC-SYM and PAC-QoL questionnaires...
January 14, 2017: BMC Gastroenterology
https://www.readbyqxmd.com/read/28087548/early-lens-extraction-with-intraocular-lens-implantation-for-the-treatment-of-primary-angle-closure-glaucoma-an-economic-evaluation-based-on-data-from-the-eagle-trial
#13
Mehdi Javanbakht, Augusto Azuara-Blanco, Jennifer M Burr, Craig Ramsay, David Cooper, Claire Cochran, John Norrie, Graham Scotland
OBJECTIVE: To investigate the cost-effectiveness of early lens extraction with intraocular lens implantation for the treatment of primary angle closure glaucoma (PACG) compared to standard care. DESIGN: Cost-effectiveness analysis alongside a multicentre pragmatic two-arm randomised controlled trial. Patients were followed-up for 36 months, and data on health service usage and health state utility were collected and analysed within the trial time horizon. A Markov model was developed to extrapolate the results over a 5-year and 10-year time horizon...
January 13, 2017: BMJ Open
https://www.readbyqxmd.com/read/28086848/using-intervention-mapping-to-develop-the-parents-as-agents-of-change-pac-%C3%A2-intervention-for-managing-pediatric-obesity
#14
Geoff D C Ball, Aislin R Mushquash, Rachel A Keaschuk, Kathryn A Ambler, Amanda S Newton
BACKGROUND: Pediatric obesity has become increasingly prevalent over recent decades. In view of the psychosocial and physical health risks, and the high likelihood that children with obesity will grow to become adults with obesity, there is a clear need to develop evidence-based interventions that can be delivered in the health care system to optimize the health and well-being of children with obesity and their families. The aim of this paper is to describe the development, implementation, and planned evaluation of a parent-based weight management intervention designed for parents of 8-12 year olds with obesity...
January 13, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28081366/an-estimation-of-hybrid-quantum-mechanical-molecular-mechanical-qm-mm-polarization-energies-for-small-molecules-using-polarizable-force-field-approaches
#15
Jing Huang, Ye Mei, Gerhard Koenig, Andrew C Simmonett, Frank C Pickard, Qin Wu, Lee-Ping Wang, Alexander D MacKerell, Bernard R Brooks, Yihan Shao
In this work, we report two polarizable molecular mechanics (polMM) force field models for estimating the polarization energy in hybrid quantum mechanical molecular mechanical (QM/MM) calculations. These two models, named the potential of atomic charges (PAC) and potential of atomic dipoles (PAD), are formulated from the ab initio quantum mechanical (QM) response kernels for the prediction of the QM density response to an external molecular mechanical (MM) environment (as described by external point charges)...
January 12, 2017: Journal of Chemical Theory and Computation
https://www.readbyqxmd.com/read/28081301/ethanol-induces-platelet-apoptosis
#16
Lei Liu, Mengxing Chen, Lili Zhao, Qing Zhao, Renping Hu, Jie Zhu, Rong Yan, Kesheng Dai
BACKGROUND: Alcohol abuse incurs severe medical conditions, such as thrombocytopenia and hemorrhage, but the pathogenesis is not totally understood. Alcohol has been reported to induce apoptosis in eukaryotic cells, such as hepatocyte, nerve cell, corneal fibroblasts. However, it is still unclear whether alcohol induces platelet apoptosis. METHODS: Washed human platelets were pretreated with ethanol (EtOH), and apoptotic events and platelet function were detected...
January 12, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28081199/mesons-from-laser-induced-processes-in-ultra-dense-hydrogen-h-0
#17
Leif Holmlid
Large signals of charged light mesons are observed in the laser-induced particle flux from ultra-dense hydrogen H(0) layers. The mesons are formed in such layers on metal surfaces using < 200 mJ laser pulse-energy. The time variation of the signal to metal foil collectors and the magnetic deflection to a movable pin collector are now studied. Relativistic charged particles with velocity up to 500 MeV u-1 thus 0.75 c are observed. Characteristic decay time constants for meson decay are observed, for charged and neutral kaons and also for charged pions...
2017: PloS One
https://www.readbyqxmd.com/read/28079107/phenotyping-for-the-dynamics-of-field-wheat-root-system-architecture
#18
Xinxin Chen, Qishuo Ding, Zbigniew Błaszkiewicz, Jiuai Sun, Qian Sun, Ruiyin He, Yinian Li
We investigated a method to quantify field-state wheat RSA in a phenotyping way, depicting the 3D topology of wheat RSA in 14d periods. The phenotyping procedure, proposed for understanding the spatio-temporal variations of root-soil interaction and the RSA dynamics in the field, is realized with a set of indices of mm scale precision, illustrating the gradients of both wheat root angle and elongation rate along soil depth, as well as the foraging potential along the side directions. The 70d was identified as the shifting point distinguishing the linear root length elongation from power-law development...
January 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28078508/prioritization-of-liver-mri-for-distinguishing-focal-lesions
#19
Qinghua Su, Shusheng Bi, Xuedong Yang
Liver cancer is one of the leading causes of cancer-related mortality worldwide. Magnetic resonance imaging (MRI) is a non-invasive imaging technique that is often used by radiologists for diagnosis and surgical planning. Analysis of a large amount of liver MRI data for each patient limits the radiologist's efficiency and may lead to misdiagnoses. The redundant MRI data, especially from dynamic contrast enhanced (DCE) sequences, is also a bottleneck in transmitting the images via the internet or PACS for remote consultancy in a reasonable amount of time...
January 4, 2017: Science China. Life Sciences
https://www.readbyqxmd.com/read/28077711/phase-amplitude-coupling-and-long-range-phase-synchronization-reveal-frontotemporal-interactions-during-visual-working-memory
#20
Jonathan Daume, Thomas Gruber, Andreas K Engel, Uwe Friese
: It has been suggested that cross-frequency phase-amplitude coupling (PAC), particularly in temporal brain structures, serves as a neural mechanism for coordinated working memory storage. In this magnetoencephalography study, we show that during visual working memory maintenance, temporal cortex regions, which exhibit enhanced PAC, interact with prefrontal cortex via enhanced low-frequency phase synchronization. Healthy human participants were engaged in a visual delayed match-to-sample task with pictures of natural objects...
January 11, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
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