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acide base balance

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https://www.readbyqxmd.com/read/28527975/the-reaumuria-trigyna-transcription-factor-rtwrky1-confers-tolerance-to-salt-stress-in-transgenic-arabidopsis
#1
Chao Du, Pingping Zhao, Huirong Zhang, Ningning Li, Linlin Zheng, Yingchun Wang
Reaumuria trigyna (R. trigyna) is an endangered small shrub endemic to the Eastern Alxa-Western Ordos area in Inner Mongolia, China. Based on R. trigyna transcriptome data, the Group I WRKY transcription factor gene RtWRKY1 was cloned from R. trigyna. The full-length RtWRKY1 gene was 2100bp, including a 1261-bp open reading frame (ORF) encoding 573 amino acids. RtWRKY1 was mainly expressed in the stem and was induced by salt, cold stress, and ABA treatment. Overexpression of RtWRKY1 in Arabidopsis significantly enhanced the chlorophyll content, root length, and fresh weight of the transgenic lines under salt stress...
May 4, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/28527366/effect-of-low-protein-diets-in-heavy-pigs-on-dry-cured-ham-quality-characteristics
#2
Silvia Grassi, Ernestina Casiraghi, Simona Benedetti, Cristina Alamprese
The present work aimed at evaluating if heavy pig low-protein diets balanced for amino acid (AA) profile affect the quality characteristics of dry cured hams. To the aim, 40 hams obtained by Italian Duroc×Italian Large White pigs fed three different dietary crude protein and indispensable AA levels were compared with those obtained by a conventional Parma ham Protected Designation of Origin diet (C). No physico-chemical (aw, pH), chemical (gross composition, NaCl, lipid peroxidation, non-protein nitrogen, total volatile bases) or sensory characteristics of hams were systematically affected by the administered diet, animal sex or their interaction with the exception of total and subcutaneous fat (the latter measured by an image analysis procedure)...
May 13, 2017: Meat Science
https://www.readbyqxmd.com/read/28524033/-procedural-analysis-of-acid-base-balance-disorder-case-serials-in-4-patents
#3
Chunyuan Ma, Guijie Wang
OBJECTIVE: To establish the standardization process of acid-base balance analysis, analyze cases of acid-base balance disorder with the aid of acid-base balance coordinate graph. METHODS: The acid-base balance theory were reviewed systematically on recent research progress, and the important concepts, definitions, formulas, parameters, regularity and inference in the analysis of acid-base balance were studied. The analysis of acid-base balance disordered processes and steps were figured...
May 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28521953/optimized-selection-of-liquid-chromatography-conditions-for-wide-range-analysis-of-natural-compounds
#4
Aurélie Periat, Davy Guillarme, Jean-Luc Veuthey, Julien Boccard, Sofia Moco, Denis Barron, Alexandre Grand-Guillaume Perrenoud
Plant secondary metabolites are an almost unlimited reservoir of potential bioactive compounds. In view of the wide chemical space covered by natural compounds, their comprehensive analysis requires multiple and complementary approaches. In this study, numerous chromatographic conditions were tested for the analysis of a set of 120 representative natural compounds covering a wide polarity range (18 log P units). The experiments were performed on 59 different conditions involving 29 RPLC and HILIC dedicated stationary phases, as well as more exotic mixed mode columns...
May 10, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28521618/markers-of-oxidative-nitrative-damage-of-plasma-proteins-correlated-with-edss-and-bdi-scores-in-patients-with-secondary-progressive-multiple-sclerosis
#5
Agnieszka Morel, Michał Bijak, Marta Niwald, Elżbieta Miller, Joanna Saluk
Objectives The objective of the present study was to evaluate oxidative/nitrative stress in the plasma of 50 patients suffering from the secondary progressive course of multiple sclerosis (MS), and to verify its correlation with physical and mental disability as assessed by the Expanded Disability Status Scale (EDSS), and the Beck Depression Inventory (BDI). Methods Oxidative and nitrative damage to proteins was determined by the level of carbonyl groups and 3-nitrotyrosine using ELISA test. Based on the reaction with Ellman's reagent, we estimated the concentration of oxidized thiol groups...
May 19, 2017: Redox Report: Communications in Free Radical Research
https://www.readbyqxmd.com/read/28515867/the-evolution-of-the-major-histocompatibility-complex-in-upstream-versus-downstream-river-populations-of-the-longnose-dace
#6
Erika Crispo, Haley R Tunna, Noreen Hussain, Silvia S Rodriguez, Scott A Pavey, Leland J Jackson, Sean M Rogers
Populations in upstream versus downstream river locations can be exposed to vastly different environmental and ecological conditions and can thus harbor different genetic resources due to selection and neutral processes. An interesting question is how upstream-downstream directionality in rivers affects the evolution of immune response genes. We used next-generation amplicon sequencing to identify eight alleles of the major histocompatibility complex (MHC) class II β exon 2 in the cyprinid longnose dace (Rhinichthys cataractae) from three rivers in Alberta, upstream and downstream of municipal and agricultural areas along contaminant gradients...
May 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28515647/comparative-study-on-compositions-and-functional-properties-of-porcine-chicken-and-duck-blood
#7
Supaluk Sorapukdee, Supawadee Narunatsopanon
Hematological, chemical and functional characteristics of porcine, chicken and duck blood were evaluated. A porcine blood sample showed the most abundant red blood cell, hemoglobin concentration, packed cell volume and plasma protein content as well as its freeze-dried blood possessed the highest contents of protein, fat, Cu and Cr with the highest percentage of heme iron (p<0.05). Unlike porcine blood, chicken blood showed a well balance in some essential amino acids, specifically for a higher isoleucine content (p<0...
2017: Korean Journal for Food Science of Animal Resources
https://www.readbyqxmd.com/read/28513767/capnography-as-a-tool-to-detect-metabolic-changes-in-patients-cared-for-in-the-emergency-setting
#8
Francisco José Cereceda-Sánchez, Jesús Molina-Mula
Objective: to evaluate the usefulness of capnography for the detection of metabolic changes in spontaneous breathing patients, in the emergency and intensive care settings. Methods: in-depth and structured bibliographical search in the databases EBSCOhost, Virtual Health Library, PubMed, Cochrane Library, among others, identifying studies that assessed the relationship between capnography values and the variables involved in blood acid-base balance. Results: 19 studies were found, two were reviews and 17 were observational studies...
May 15, 2017: Revista Latino-americana de Enfermagem
https://www.readbyqxmd.com/read/28510784/effects-of-acute-and-chronic-hypoxia-on-acid-base-regulation-hematology-ion-and-osmoregulation-of-juvenile-american-paddlefish
#9
Daniel L Aboagye, Peter J Allen
Despite the increasing prevalence of hypoxia in natural habitats occupied by the American paddlefish, basal bony fish, and ram ventilator, information about its response to hypoxia is scarce. To understand the physiological and biochemical responses of juvenile paddlefish (~150 g) to acute (<24 h) and chronic hypoxia (≥24 h), blood oxygen transport, blood acid-base balance, and metabolic stress were evaluated under four different partial pressures of oxygen [pO2; normoxia (148 mmHg), mild hypoxia (89 mmHg), moderate hypoxia (59 mmHg), and extreme hypoxia (36 mmHg)], all at 21 °C...
May 16, 2017: Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology
https://www.readbyqxmd.com/read/28501123/attenuation-of-intestinal-ischemia-reperfusion-injury%C3%A2-by-%C3%AE-alanine-a-potentially-glycine-receptor-mediated-effect
#10
Lisa Brencher, Rabea Verhaegh, Michael Kirsch
BACKGROUND: Acute mesenteric ischemia is often caused by embolization of the mesenteric arterial circulation. Coherent intestinal injury due to ischemia and following reperfusion get visible on macroscopic and histologic level. In previous studies, application of glycine caused an ameliorated intestinal damage after ischemia-reperfusion in rats. Because we speculated that glycine acted here as a signal molecule, we investigated whether the glycine-receptor agonist β-alanine evokes the same beneficial effect in intestinal ischemia-reperfusion...
May 1, 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28498207/the-kinetics-of-reversible-hyaluronic-acid-filler-injection-treated-with-hyaluronidase
#11
Margit L W Juhász, Melissa K Levin, Ellen S Marmur
BACKGROUND: Hyaluronidase is an enzyme capable of dissolution of hyaluronic acid (HA). There is a lack of evidence-based research defining time- and concentration-dependent reversal of HA filler using hyaluronidase. OBJECTIVE: To explore the efficacy of different concentrations of hyaluronidase in digesting commercially available HA-based reversible fillers-Belotero Balance (BEL), Juvederm Ultra XC (JUVXC), Juvederm Ultra Plus (JUVX+), Juvederm Voluma XC (JUVV), Restylane-L (RESL), Restylane Silk (RESS), and Perlane/Restylane Lyft (RESLYFT)...
May 10, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28492229/imaging-of-ph-in-vivo-using-hyperpolarized-13-c-labelled-zymonic-acid
#12
Stephan Düwel, Christian Hundshammer, Malte Gersch, Benedikt Feuerecker, Katja Steiger, Achim Buck, Axel Walch, Axel Haase, Steffen J Glaser, Markus Schwaiger, Franz Schilling
Natural pH regulatory mechanisms can be overruled during several pathologies such as cancer, inflammation and ischaemia, leading to local pH changes in the human body. Here we demonstrate that (13)C-labelled zymonic acid (ZA) can be used as hyperpolarized magnetic resonance pH imaging sensor. ZA is synthesized from [1-(13)C]pyruvic acid and its (13)C resonance frequencies shift up to 3.0 p.p.m. per pH unit in the physiological pH range. The long lifetime of the hyperpolarized signal enhancement enables monitoring of pH, independent of concentration, temperature, ionic strength and protein concentration...
May 11, 2017: Nature Communications
https://www.readbyqxmd.com/read/28489182/acute-effects-of-intradialytic-aerobic-exercise-on-solute-removal-blood-gases-and-oxidative-stress-in-patients-with-chronic-kidney-disease
#13
Joseane Böhm, Mariane Borba Monteiro, Francini Porcher Andrade, Francisco Veronese, Fernando Saldanha Thomé
Introduction: Hemodialysis contributes to increased oxidative stress and induces transitory hypoxemia. Compartmentalization decreases the supply of solutes to the dialyzer during treatment. The aim of this study was to investigate the acute effects of intradialytic aerobic exercise on solute removal, blood gases and oxidative stress in patients with chronic kidney disease during a single hemodialysis session. Methods: Thirty patients were randomized to perform aerobic exercise with cycle ergometer for lower limbs during 30 minutes with intensity between 60-70% of maximal heart rate, or control group (CG)...
April 27, 2017: Jornal Brasileiro de Nefrologia: ʹorgão Oficial de Sociedades Brasileira e Latino-Americana de Nefrologia
https://www.readbyqxmd.com/read/28488324/one-electron-bonds-in-frustrated-lewis-pair-tpb-ligands-boron-behaving-as-a-lewis-base
#14
Elena Kusevska, M Merced Montero-Campillo, Otilia Mó, Manuel Yáñez
Owing to its versatility in synthetic chemistry, TPB (tris[2-diisopropylphospino)phenyl]borane) is a very important frustrated Lewis Pair. The unusual stability of the neutral radical (TPB)Cu has been related to the presence of a one-electron B-Cu bond. Herein we show, through the use of different computational chemistry methods, that the existence and nature of this kind of A⋅⋅⋅M bond (A=donor atom, M=transition metal) depends on the surrounding chemical structure, and can be genuine one-electron sigma bonds only if appropriate metal ligands (Y), able to trap the charge in the desired region, are chosen...
May 10, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28482283/using-a-combined-hydrolysis-factor-to-balance-enzymatic-saccharification-and-the-structural-characteristics-of-lignin-during-pretreatment-of-hybrid-poplar-with-a-fully-recyclable-solid-acid
#15
Hairui Ji, Yanliang Song, Xu Zhang, Tianwei Tan
In this study, a new pretreatment strategy for lignocellulosic was developed using a fully recyclable solid acid, Toluenesulfonic acid (p-TsOH). A combined hydrolysis factor (CHF) as a pretreatment severity was used to balance enzymatic saccharification and the structural characteristics of lignin. The results from degradation of carbohydrates, enzymatic hydrolysis of cellulose and characterization of lignin by FT-IR, (31)P NMR, GPC, 2D-HSQC NMR indicated that a CHF of approximately 3.90 was the optimal pretreatment severity to facilitate enzymatic saccharification and the potential serviceability of lignin...
April 27, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28480987/gaba-metabolism-and-its-role-in-gamma-band-oscillatory-activity-during-auditory-processing-an-mrs-and-eeg-study
#16
Christine Wyss, Desmond H Y Tse, Michael Kometer, Jürgen Dammers, Rita Achermann, N Jon Shah, Wolfram Kawohl, Irene Neuner
Gamma-aminobutyric acid (GABA) and glutamate are believed to have inhibitory and exhibitory neuromodulatory effects that regulate the brain's response to sensory perception. Furthermore, frequency-specific synchronization of neuronal excitability within the gamma band (30-80 Hz) is attributable to a homeostatic balance between excitation and inhibition. However, our understanding of the physiological mechanism underlying gamma rhythms is based on animal models. Investigations of the relationship between GABA concentrations, glutamate concentrations, and gamma band activity in humans were mostly restricted to the visual cortex and are conflicting...
May 8, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28474871/effects-of-hydrogen-rich-water-on-prolonged-intermittent-exercise
#17
Alessandro DA Ponte, Nicola Giovanelli, Daniele Nigris, Stefano Lazzer
BACKGROUND: Recent studies showed a positive effect of Hydrogen Rich Water (HRW) intake on acid-basic homeostasis at rest. We investigated 2-weeks of HRW intake on repeated sprint performance and acid-base status during prolonged intermittent cycling exercise. METHODS: In a cross over single-blind protocol, eight trained male cyclists (age [mean ± SD] 41±7 years, body mass 72.3±4.4 kg, height 1.77±0.04 m, maximal oxygen uptake [V̇ O2max] 52.6±4.4 ml·kg-1·min-1) were provided daily with 2 liters of placebo normal water (PLA, pH 7...
April 26, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28472708/degradation-of-the-chlorophenoxyacetic-herbicide-2-4-d-by-plasma-ozonation-system
#18
C Bradu, M Magureanu, V I Parvulescu
A novel advanced oxidation process based on the combination of ozonation with non-thermal plasma generated in a pulsed corona discharge was developed for the oxidative degradation of recalcitrant organic pollutants in water. The pulsed corona discharge in contact with liquid, operated in oxygen, produced 3.5mgL(-1) ozone, which was subsequently introduced in the ozonation reactor. The solution to be treated was continuously circulated between the plasma reactor and the ozonation reactor. The system was tested for the degradation of 2,4-dichlorophenoxyacetic acid (2,4-D) and considerably improved performance as compared to ozonation alone, both with respect to the removal of the target compound and to mineralization...
April 23, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28472467/hypothalamic-regulation-of-liver-and-muscle-nutrient-partitioning-by-brain-specific-carnitine-palmitoyltransferase-1c-cpt1c-in-male-mice
#19
Macarena Pozo, Rosalía Rodríguez-Rodríguez, Sara Ramírez, Patricia Seoane-Collazo, Miguel López, Dolors Serra, Laura Herrero, Núria Casals
Carnitine palmitoyltransferase 1C (CPT1C), a brain-specific protein localized in the endoplasmic reticulum of neurons, is expressed in almost all brain regions. Based on global knockout (KO) models, CPT1C has demonstrated relevance in hippocampus-dependent spatial learning as well as in hypothalamic regulation of energy balance. Specifically, it has been shown that CPT1C is protective against high-fat diet-induced obesity (DIO), and that CPT1C KO mice show reduced peripheral fatty acid oxidation (FAO) both during fasting and DIO...
May 3, 2017: Endocrinology
https://www.readbyqxmd.com/read/28471826/chronic-comorbidities-associated-with-inflammatory-bowel-disease-prevalence-and-impact-on-healthcare-costs-in-switzerland
#20
Caroline Bähler, Alain M Schoepfer, Stephan R Vavricka, Beat Brüngger, Oliver Reich
OBJECTIVE: Inflammatory bowel disease (IBD) was shown to be associated with a variety of chronic comorbidities. We aimed to evaluate the frequency of 21 chronic conditions and compared frequencies in IBD and non-IBD populations. Further, healthcare costs of those (additional) chronic conditions were calculated. PATIENTS AND METHODS: A total of 4791 IBD patients, who were insured at Helsana Insurance Group in 2014, were compared with 1 114 638 individuals without IBD...
May 3, 2017: European Journal of Gastroenterology & Hepatology
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