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https://www.readbyqxmd.com/read/28214096/maintenance-fluid-therapy-in-a-tertiary-hospital-a-prevalence-study
#1
R Uña Orejón, L Gisbert de la Cuadra, D Garríguez Pérez, J Díez Sebastián, M P Ureta Tolsada
OBJECTIVE: To assess the types of maintenance fluids used in our hospital, comparing their volume and composition to the standards recommended by the guidelines. MATERIAL AND METHODS: Observational, cross-sectional study. Volume and type of fluid therapy administered during 24h to patients admitted to various hospital departments were recorded. Patients receiving fluid therapy because of water-electrolyte imbalance were excluded. RESULTS: Out of 198 patients registered, 74 (37...
February 14, 2017: Revista Española de Anestesiología y Reanimación
https://www.readbyqxmd.com/read/28212110/the-impact-of-chewing-gum-on-halitosis-parameters-a-systematic-review
#2
Francisco Wilker Mustafa Gomes Muniz, Stephanie Anagnostopoulos Friedrich, Carina Folgearini Silveira, Cassiano Kuchenbecker Rösing
This study aimed to analyze the impact of chewing gum on halitosis parameters. Three databases were searched with the following focused question: 'Can chewing gum additionally reduce halitosis parameters, such as organoleptic scores and volatile sulfur compounds (VSC), when compared to a control treatment'? Controlled clinical trials presenting at least two halitosis measurements (organoleptic scores and/or VSC) were included. Ten studies were included, and different active ingredients were used. One study was performed using a chewing gum without any active ingredient...
February 17, 2017: Journal of Breath Research
https://www.readbyqxmd.com/read/28211683/the-central-role-of-bicarbonate-in-the-electrochemical-re-duction-of-carbon-dioxide-on-gold
#3
Marco Dunwell, Qi Lu, Jeffrey M Heyes, Jonathan Rosen, Jingguang G Chen, Yushan Yan, Feng Jiao, Bingjun Xu
Much effort has been devoted in the development of efficient catalysts for electrochemical reduction of CO2. Molecular level understanding of electrode-mediated process, particularly the role of bicarbonate in increasing CO2 reduction rates, is still lacking due to the difficulty of directly probing the electrochemical interface. We developed a protocol to observe normally invisible reaction intermediates with a surface enhanced spectroscopy by applying square-wave potential profiles. Further, we demonstrate that bicarbonate, through equilibrium exchange with dissolved CO2, rather than the supplied CO2, is the primary source of carbon in the CO formed at the Au electrode by a combination of in-situ spectroscopic, isotopic labeling, and mass spectroscopic investigations...
February 17, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28207721/clinical-anatomy-e-cases-a-five-year-follow-up-of-learning-analytics
#4
Geoffrey Braatvedt, Amelia Tekiteki, Holly Britton, John Wallace, Manish Khanolkar
AIMS: To examine the length of stay and need for intensive care of people admitted with diabetic ketoacidosis (DKA) to a single centre between 1988 and 2011. METHODS: Patients aged ≥15 years admitted for the first time with DKA (plasma glucose ≥ 10mmol/L and a bicarbonate concentration ≤15mmol/L and a pH <7.35, and raised plasma or urine ketones or anion gap) to Auckland City Hospital from 1988-2011 were identified retrospectively. The patients were divided into four cohorts (1988-1996; 1997-2001; 2002-2006; 2007-2011)...
February 17, 2017: New Zealand Medical Journal
https://www.readbyqxmd.com/read/28206993/hemodynamic-effects-of-sodium-bicarbonate-administration
#5
A C Katheria, M K Brown, K Hassan, D M Poeltler, D A Patel, V K Brown, J B Sauberan
OBJECTIVE: To describe the hemodynamic changes that occur with sodium bicarbonate (NaHCO3) administration in premature neonates. STUDY DESIGN: This retrospective study included premature neonates 23 to 31+6 weeks of gestational age who underwent continuous cardiac and cerebral monitoring as participants in prospective trials at our institution, and who received NaHCO3 infused over 30 min in the first 24 h of life. Blood pressure (BP), heart rate, cardiac output (CO), SpO2 and cerebral oximetry (StO2) were captured every 2 s...
February 16, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/28205388/hydrogen-or-formate-alternative-key-players-in-methanogenic-degradation
#6
REVIEW
Bernhard Schink, Dominik Montag, Anja Keller, Nicolai Müller
Hydrogen and formate are important electron carriers in methanogenic degradation in anoxic environments such as sediments, sewage sludge digestors, and biogas reactors. Especially in the terminal steps of methanogenesis, they determine the energy budgets of secondary (syntrophically) fermenting bacteria and their methanogenic partners. The literature provides considerable data on hydrogen pool sizes in such habitats, but little data exist for formate concentrations due to technical difficulties in formate determination at low concentration...
February 15, 2017: Environmental Microbiology Reports
https://www.readbyqxmd.com/read/28199878/large-decadal-scale-changes-in-uranium-and-bicarbonate-in-groundwater-of-the-irrigated-western-u-s
#7
Karen R Burow, Kenneth Belitz, Neil M Dubrovsky, Bryant C Jurgens
Samples collected about one decade apart from 1105 wells from across the U.S. were compiled to assess whether uranium concentrations in the arid climate are linked to changing bicarbonate concentrations in the irrigated western U.S. Uranium concentrations in groundwater were high in the arid climate in the western U.S, where uranium sources are abundant. Sixty-four wells (6%) were above the U.S. EPA MCL of 30μg/L; all but one are in the arid west. Concentrations were low to non-detectable in the humid climate...
February 12, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28198191/development-of-water-triggered-chitosan-film-containing-glucamylase-for-sustained-release-of-resveratrol
#8
Dongliang Zhang, Yanfei Cao, Chengye Ma, Shanfeng Chen, Hongjun Li
There was a paradox to incorporate enzyme into edible chitosan film that chitosan was dissolved in acid solution and enzyme activity was maintained in mild condition. This study presents a suitable method for maintaining the pH of the chitosan solution at 4-6 to prepare a sustained-release film containing β-cyclodextrin, resveratrol-β-cyclodextrin inclusion (RCI), glucamylase and acetic acid. A considerable amount of resveratrol was released by the glucamylase-incorporated film within 15 days, and the maximum amount released was 46% of the total resveratrol content...
February 15, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28198015/advancing-the-ph-hypothesis-of-negative-feedback-to-photoreceptors-sources-of-protons-and-a-role-for-bicarbonate-in-feedback
#9
Michael Country
No abstract text is available yet for this article.
February 15, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28197045/experiences-with-continuous-venovenous-hemofiltration-using-18mmol-l-predilution-citrate-anticoagulation-and-a-phosphate-containing-replacement-solution
#10
Yuen Henry Jeffrey, Shum Hoi-Ping, Anne Leung Kit Hung, Lam Chung-Ling, Yan Wing-Wa, Lai King-Yiu
CONTEXT: Regional citrate anticoagulation for continuous renal replacement therapy is associated with a longer filter-life, less bleeding events and improved mortality. Problems associated with using Prismocitrate 10/2 solution in continuous renal replacement therapy, include hypomagnesemia, hypophosphatemia and the need for additional bicarbonate infusion. AIMS: This study uses the new Prismocitrate 18/0 solution for improved buffer balance and Phoxilium solution for a more favourable electrolyte profile...
January 2017: Indian Journal of Critical Care Medicine
https://www.readbyqxmd.com/read/28195581/cultivation-and-characterization-of-candidatus-nitrosocosmicus-exaquare-an-ammonia-oxidizing-archaeon-from-a-municipal-wastewater-treatment-system
#11
Laura A Sauder, Mads Albertsen, Katja Engel, Jasmin Schwarz, Per H Nielsen, Michael Wagner, Josh D Neufeld
Thaumarchaeota have been detected in several industrial and municipal wastewater treatment plants (WWTPs), despite the fact that ammonia-oxidizing archaea (AOA) are thought to be adapted to low ammonia environments. However, the activity, physiology and metabolism of WWTP-associated AOA remain poorly understood. We report the cultivation and complete genome sequence of Candidatus Nitrosocosmicus exaquare, a novel AOA representative from a municipal WWTP in Guelph, Ontario (Canada). In enrichment culture, Ca...
February 14, 2017: ISME Journal
https://www.readbyqxmd.com/read/28195314/reversal-of-tumor-acidosis-by-systemic-buffering-reactivates-nk-cells-to-express-ifn-%C3%AE-and-induces-nk-cell-dependent-lymphoma-control-without-other-immunotherapies
#12
Johann Pötzl, David Roser, Lorenz Bankel, Nadine Hömberg, Albert Geishauser, Christoph D Brenner, Michael Weigand, Martin Röcken, Ralph Mocikat
Like other immune cells, natural killer (NK) cells show impaired effector functions in the microenvironment of tumors, but little is known on the underlying mechanisms. Since lactate acidosis, a hallmark of malignant tissue, was shown to contribute to suppression of effective antitumor immune responses, we investigated the impact of tissue pH and lactate concentration on NK-cell functions in an aggressive model of endogenously arising B-cell lymphoma. The progressive loss of IFN-γ production by NK cells observed during development of this disease could be ascribed to decreased pH values and lactate accumulation in the microenvironment of growing tumors...
February 13, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28191541/metabolic-acidosis-status-and-mortality-in-patients-on-the-end-stage-of-renal-disease
#13
Vaia D Raikou
BACKGROUND AND OBJECTIVES: Uncorrected metabolic acidosis leads to higher death risk in dialysis patients. We observed the relationship between metabolic acidosis status and mortality rate in patients on renal replacement therapy during a median follow up time of 60 months. METHODS: We studied 76 patients on an on-line hemodiafiltration. The dialysis adequacy was defined by Kt/V for urea. The Framingham risk score (FRS) points were used to determine the 10-year risk for coronary heart disease...
December 1, 2016: Journal of Translational Internal Medicine
https://www.readbyqxmd.com/read/28191535/association-of-serum-intact-fibroblast-growth-factor-23-with-left-ventricular-mass-and-different-echocardiographic-findings-in-patients-on-hemodialysis
#14
Amir Ahmad Nassiri, Monir Sadat Hakemi, Reza Safar-Pour, Ali Ahmadi, Maryam Tohidi, Babak Sharif Kashani, Fatemeh Esfehani, Soudabeh Alatab
OBJECTIVES: To determine the association of fibroblast growth factor 23 (FGF23) with left ventricular hypertrophy (LVH) through the assessment of left ventricular (LV) mass and left ventricular mass index (LVMI) in patients on hemodialysis, this study was done. METHODS: All patients on hemodialysis who are older than 18 years and in whom hemodialysis vintage was at least 6 months were enrolled. All patients were on hemodialysis thrice a week for 4 h using low-flux dialysis filters, polysulfone membranes, reverse osmosis purified water, and bicarbonate-base hemodialysis solution...
September 1, 2016: Journal of Translational Internal Medicine
https://www.readbyqxmd.com/read/28188168/metformin-associated-lactic-acidosis-treated-with-continuous-renal-replacement-therapy
#15
Akihide Nakamura, Kei Suzuki, Hiroshi Imai, Naoyuki Katayama
Metformin-associated lactic acidosis (MALA) is a rare but life-threatening complication. We report a case of MALA in a man aged 71 years who was treated with continuous renal replacement therapy (CRRT). The patient was brought to the hospital for prolonged and gradual worsening gastrointestinal symptoms. Although he received intravenous treatment, he developed catecholamine-resistant shock, and blood gas analysis revealed lactic acidosis. Bicarbonate and antibiotics for possible sepsis were initiated, but with no clear benefit...
February 10, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28186677/imaging-porcine-cardiac-substrate-selection-modulations-by-glucose-insulin-and-potassium-intervention-a-hyperpolarized-1-13-c-pyruvate-study
#16
Esben Søvsø Szocska Hansen, Rasmus Stilling Tougaard, Thomas Stokholm Nørlinger, Emmeli Mikkelsen, Per Mose Nielsen, Lotte Bonde Bertelsen, Hans Erik Bøtker, Hans Stødkilde Jørgensen, Christoffer Laustsen
Cardiac metabolism has received considerable attention in terms of both diagnostics and prognostics, as well as a novel target for treatment. As human trials involving hyperpolarized magnetic resonance in the heart are imminent, we sought to evaluate the general feasibility of detection of an imposed shift in metabolic substrate utilization during metabolic modulation with glucose-insulin-potassium (GIK) infusion, and thus the limitations associated with this strategy, in a large animal model resembling human physiology...
February 10, 2017: NMR in Biomedicine
https://www.readbyqxmd.com/read/28184230/bicarbonate-induced-redox-proteome-changes-in-arabidopsis-suspension-cells
#17
Zepeng Yin, Kelly Balmant, Sisi Geng, Ning Zhu, Tong Zhang, Craig Dufresne, Shaojun Dai, Sixue Chen
Climate change as a result of increasing atmospheric CO2 affects plant growth and productivity. CO2 is not only a carbon donor for photosynthesis but also an environmental signal that can perturb cellular redox homeostasis and lead to modifications of redox-sensitive proteins. Although redox regulation of protein functions has emerged as an important mechanism in several biological processes, protein redox modifications and how they function in plant CO2 response remain unclear. Here a new iodoTMTRAQ proteomics technology was employed to analyze changes in protein redox modifications in Arabidopsis thaliana suspension cells in response to bicarbonate (mimic of elevated CO2) in a time-course study...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28183452/controversies-in-the-management-of-hyperglycaemic-emergencies-in-adults-with-diabetes
#18
REVIEW
Luís Cardoso, Nuno Vicente, Dírcea Rodrigues, Leonor Gomes, Francisco Carrilho
Hyperglycaemic emergencies are associated with significant morbi-mortality and healthcare costs. Management consists on fluid replacement, insulin therapy, and electrolyte correction. However, some areas of patient management remain debatable. In patients without respiratory failure or haemodynamic instability, arterial and venous pH and bicarbonate measurements are comparable. Fluid choice varies upon replenishment phase and patient's condition. If patient is severely hypovolaemic, normal saline solution should be the first option...
March 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28182125/disulfiram-loaded-porous-plga-microparticle-for-inhibiting-the-proliferation-and-migration-of-non-small-cell-lung-cancer
#19
Chenhui Wang, Jiebing Yang, Haobo Han, Jiawen Chen, Yudi Wang, Quanshun Li, Yanbo Wang
In this study, poly(lactic-co-glycolic acid) (PLGA) was used as a carrier to construct disulfiram-loaded porous microparticle through the emulsion solvent evaporation method, using ammonium bicarbonate as a porogen. The microparticle possessed highly porous surface, suitable aerodynamic diameter for inhalation (8.31±1.33 µm), favorable drug loading (4.09%±0.11%), and sustained release profile. The antiproliferation effect of release supernatant was detected through 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay using non-small-cell lung cancer A549 as a model, with only 13...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28181941/sodium-bicarbonate-versus-sodium-chloride-for-preventing-contrast-associated-acute-kidney-injury-in-critically-ill-patients-a-randomized-controlled-trial
#20
Xavier Valette, Isabelle Desmeulles, Benoit Savary, Romain Masson, Amélie Seguin, Bertrand Sauneuf, Jennifer Brunet, Pierre Verrier, Véronique Pottier, Marie Orabona, Désiré Samba, Gérald Viquesnel, Mathilde Lermuzeaux, Pascal Hazera, Jean-Jacques Dutheil, Jean-Luc Hanouz, Jean-Jacques Parienti, Damien du Cheyron
OBJECTIVES: To test whether hydration with bicarbonate rather than isotonic sodium chloride reduces the risk of contrast-associated acute kidney injury in critically ill patients. DESIGN: Prospective, double-blind, multicenter, randomized controlled study. SETTING: Three French ICUs. PATIENTS: Critically ill patients with stable renal function (n = 307) who received intravascular contrast media. INTERVENTIONS: Hydration with 0...
February 7, 2017: Critical Care Medicine
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