keyword
MENU ▼
Read by QxMD icon Read
search

Lactate AND Bicarbonate

keyword
https://www.readbyqxmd.com/read/29322616/development-of-methods-and-feasibility-of-using-hyperpolarized-carbon-13-imaging-data-for-evaluating-brain-metabolism-in-patient-studies
#1
Ilwoo Park, Peder E Z Larson, Jeremy W Gordon, Lucas Carvajal, Hsin-Yu Chen, Robert Bok, Mark Van Criekinge, Marcus Ferrone, James B Slater, Duan Xu, John Kurhanewicz, Daniel B Vigneron, Susan Chang, Sarah J Nelson
PURPOSE: Hyperpolarized carbon-13 (13 C) metabolic imaging is a noninvasive imaging modality for evaluating real-time metabolism. The purpose of this study was to develop and implement experimental strategies for using [1-13 C]pyruvate to probe in vivo metabolism for patients with brain tumors and other neurological diseases. METHODS: The 13 C radiofrequency coils and pulse sequences were tested in a phantom and were performed using a 3 Tesla whole-body scanner...
January 10, 2018: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/29318219/extending-metformin-use-in-diabetic-kidney-disease-a-pharmacokinetic-study%C3%A2-in%C3%A2-stage-4-diabetic-nephropathy
#2
Ajith Munasinghe Dissanayake, Mark Christopher Wheldon, Jafar Ahmed, Christopher John Hood
Introduction: Metformin use in advanced chronic kidney disease is controversial. This study sought to examine the pharmacokinetics, safety, and efficacy of low-dose metformin in patients with type 2 diabetes and stage 4 chronic kidney disease. Methods: In this open-label, phase I trial, 3 consecutive cohorts (1, 2, and 3) of 6 patients each were recruited to receive 250-, 500-, or 1000-mg once-daily doses of metformin, respectively. All patients underwent a first-dose pharmacokinetic profile and weekly trough metformin concentrations for the duration of 4 weeks of daily therapy...
July 2017: KI Reports
https://www.readbyqxmd.com/read/29306258/the-reno-protective-effects-of-atorvastatin-in-crush-syndrome-and-rhabdomyolysis-is-there-a-dilemma
#3
Demet Acar, Mustafa Gülpembe, Can Gökay Yıldız, Emine Nur Özdamar, Kerem Açıkgöz, Ahmet Çağlar, Başar Cander
Background/aim: We aim to determine the effects of low-dose atorvastatin treatment together with crush fluid resuscitation on renal functions and muscle enzyme levels in a rat model of crush syndrome. Materials and methods: The study involved female Wistar Albino rats weighing 250-300 g that were housed with free access to food and water. The crush model was obtained by compression. Rats were randomly divided into four groups: control (C) group, atorvastatin + crush fluid (ACF) group, crush fluid (CF) group, and hypertonic saline (%3) + mannitol + sodium bicarbonate (SM) group...
December 19, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/29297841/health-status-of-red-footed-boobies-sula-sula-determined-by-hematology-biochemistry-blood-gases-and-physical-examination
#4
Gregory A Lewbart, Catalina Ulloa, Diane Deresienski, Cristina Regalado, Juan-Pablo Muñoz-Pérez, Juan Garcia, Britta Denise Hardesty, Carlos A Valle
The red-footed booby ( Sula sula) is a widely distributed sulid native to the Galápagos archipelago. Hematology and blood chemistry parameters have been published for this species, but not from the San Cristóbal rookery. Analyses were run on blood samples drawn from 31 manually restrained red-footed boobies that were captured by hand from their nests at Punta Pitt on San Cristóbal Island. A portable blood analyzer (iSTAT) was used to obtain near immediate field results for pH, partial pressure of oxygen, partial pressure of carbon dioxide, bicarbonate, hematocrit, hemoglobin, sodium, potassium, ionized calcium, and glucose...
December 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/29297798/evaluation-of-blood-gas-values-in-anesthetized-southern-white-rhinoceros-ceratotherium-simum-ventilated-with-a-novel-demand-ventilator-in-a-zoological-park-setting
#5
Mark Jeon, Khursheed R Mama, Jeffrey R Zuba, Nadine Lamberski, James E Oosterhuis, Meredith M Clancy, Katie W Delk, Matthew E Kinney, Patrick J Morris, Francisco Olea-Popelka
Rhinoceros conservation efforts are essential to the survival of the species. One such effort is focused on using advanced reproductive technologies to produce viable northern white rhinoceros ( Ceratotherium simum cottoni) embryos for implantation into southern white rhinoceros ( Ceratotherium simum simum) surrogates. Anesthesia may be required to facilitate necessary procedures in these surrogate rhinoceros, but commonly reported side effects including hypercapnia and hypoxemia limit anesthetic recumbency time due to animal safety concerns...
December 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/29286387/establishment-of-an-extracellular-acidic-ph-culture-system
#6
Ayano Kondo, Tsuyoshi Osawa
Conditions of the tumor microenvironment, such as hypoxia or nutrient starvation, play critical roles in cancer progression and malignancy. However, the role of acidic extracellular pH in tumor aggressiveness and its underlying mechanism has not been extensively studied compared to hypoxic or nutrient starvation conditions. In addition, a well-defined culture method to mimic the acidic extracellular tumor microenvironment has not been fully reported. Here we present a simple in vitro culture method to maintain acidic extracellular pH using reduced bicarbonate and increased lactate or HCl concentrations in the culture medium...
November 19, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29211950/two-randomized-clinical-studies-to-confirm-differential-plaque-removal-by-sodium-bicarbonate-dentifrices-in-a-single-timed-brushing-model
#7
Stephen Mason, Ritu Karwal, Mary Lynn Bosma
OBJECTIVES: This study evaluated and compared plaque removal efficacy of commercially available dentifrices containing sodium bicarbonate (NaHCO3) to those without NaHCO3 in a single timed brushing clinical study model. METHODS: Two randomized, examiner-blind, three-period, three-treatment, crossover studies were performed in adults with a mean Turesky modification of the Quigley-Hein Plaque Index (TPI) score of = 2.00. In Study 1, 60 subjects were randomized to commercially available dentifrices containing: (i) 67% NaHCO3 plus 1425 ppm fluoride (F) as sodium fluoride (NaF); (ii) 45% NaHCO3 plus 1425 ppm F as NaF; or (iii) 0% NaHCO3 plus silica and 1450 ppm F as NaF...
September 2017: Journal of Clinical Dentistry
https://www.readbyqxmd.com/read/29207797/audit-of-organic-acidurias-from-a-single-centre-clinical-and-metabolic-profile-at-presentation-with-long-term-outcome
#8
Seema Pavaman Sindgikar, Krithika Damodar Shenoy, Nutan Kamath, Rathika Shenoy
Introduction: Organic Acidurias (OA) accounts between 10% and 40% of confirmed Inborn Errors of Metabolism (IEM) in India. With prompt recognition and management, better survival but adverse neurodevelopmental outcome is reported. Aim: To study the clinical and metabolic presentation, management with immediate and long term outcome of symptomatic children with confirmed OA. Materials and Methods: Hospital based study of symptomatic children diagnosed to have OA between 2003 and 2009 and the survivors followed up over next five years...
September 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/29206326/assessing-the-influence-of-isoflurane-anesthesia-on-cardiac-metabolism-using-hyperpolarized-1-13-c-pyruvate
#9
Jonas Steinhauser, Patrick Wespi, Grzegorz Kwiatkowski, Sebastian Kozerke
Isoflurane is a frequently used anesthetic in small-animal dissolution dynamic nuclear polarization-magnetic resonance imaging (DNP-MRI) studies. Although the literature suggests interactions with mitochondrial metabolism, the influence of the compound on cardiac metabolism has not been assessed systematically to date. In the present study, the impact of low versus high isoflurane concentration was examined in a crossover experiment in healthy rats. The results revealed that cardiac metabolism is modulated by isoflurane concentration, showing increased [1-13 C]lactate and reduced [13 C]bicarbonate production during high isoflurane relative to low isoflurane dose [average differences: +16% [1-13 C]lactate/total myocardial carbon, -22% [13 C]bicarbonate/total myocardial carbon; +51% [1-13 C]lactate/[13 C]bicarbonate]...
December 5, 2017: NMR in Biomedicine
https://www.readbyqxmd.com/read/29187797/influence-of-centrifugation-conditions-on-the-results-of-77-routine-clinical-chemistry-analytes-using-standard-vacuum-blood-collection-tubes-and-the-new-bd-barricor-tubes
#10
Janne Cadamuro, Cornelia Mrazek, Alexander B Leichtle, Ulrike Kipman, Thomas K Felder, Helmut Wiedemann, Hannes Oberkofler, Georg M Fiedler, Elisabeth Haschke-Becher
Introduction: Although centrifugation is performed in almost every blood sample, recommendations on duration and g-force are heterogeneous and mostly based on expert opinions. In order to unify this step in a fully automated laboratory, we aimed to evaluate different centrifugation settings and their influence on the results of routine clinical chemistry analytes. Materials and methods: We collected blood from 41 healthy volunteers into BD Vacutainer PST II-heparin-gel- (LiHepGel), BD Vacutainer SST II-serum-, and BD Vacutainer Barricor heparin-tubes with a mechanical separator (LiHepBar)...
February 15, 2018: Biochemia Medica: časopis Hrvatskoga Društva Medicinskih Biokemičara
https://www.readbyqxmd.com/read/29183573/age-dependent-physiological-dynamics-in-acid-base-balance-electrolytes-and-blood-metabolites-in-growing-goats
#11
S Redlberger, S Fischer, H Köhler, R Diller, P Reinhold
There is a paucity of published data reporting acid-base equilibrium in goats, and no information is available on how the acid-base complexity changes when suckling goat kids become ruminants. The aims of this study were to evaluate young healthy goats for age-related changes in serum proteins, metabolites, and electrolytes; differences in results when the Henderson-Hasselbalch equation or strong ion approaches were used were also assessed. To assess biological variability and reproducibility, two consecutive long-term studies, each lasting from the 6th to 56th week of life (wl), were performed in 15 (Study 1) and 10 (Study 2) animals...
November 2017: Veterinary Journal
https://www.readbyqxmd.com/read/29176758/early-optimal-parenteral-nutrition-and-metabolic-acidosis-in-very-preterm-infants
#12
Francesco Bonsante, Jean-Bernard Gouyon, Pierre-Yves Robillard, Béatrice Gouyon, Silvia Iacobelli
BACKGROUND: It is currently recognized that an optimized nutritional approach, consisting of an early and substantial supply of protein and energy by parenteral route, may be beneficial for very low birth weight infants and recent guidelines endorse this strategy. However, the impact of the enhanced parenteral nutrition (PN) on acid-basic balance has never been investigated. The aim of the present study is to assess the effect of nutrient intake on acid-base homeostasis in a large population of preterm infants on PN...
2017: PloS One
https://www.readbyqxmd.com/read/29175046/serum-anion-gap-predicts-lactate-poorly-but-may-be-used-to-identify-sepsis-patients-at-risk-for-death-a-cohort-study
#13
Nicholas M Mohr, J Priyanka Vakkalanka, Brett A Faine, Brian Skow, Karisa K Harland, Ryan Dick-Perez, Brian M Fuller, Azeemuddin Ahmed, Steven Q Simson
PURPOSE: (1) To test whether serum bicarbonate or anion gap can be used to predict elevated lactate or mortality in emergency department (ED) patients with sepsis, and (2) to define thresholds that may predict elevated lactate and mortality. METHODS: Retrospective diagnostic-validation study of adults with sepsis treated in a 60,000-visit Midwestern university ED (2010-2015). In the derivation sample, 8 experts selected thresholds based on objective measures to optimize clinical utility...
October 31, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/29158789/arecoline-increases-glycolysis-and-modulates-ph-regulator-expression-in-ha22t-vgh-hepatoma-cells-leading-to-increase-of-intracellular-ca-2-reactive-oxygen-species-and-anoikis
#14
Hsiao-Ling Cheng, Wen-Tsan Chang, Yu-Chen Hu, Bau-Shan Hsieh, Tzu-Ching Huang, Inn-Wen Chong, Li-Wen Huang, Kee-Lung Chang
Background: Cancer cells proliferate rapidly and are resistant to cell death, relying on aggravated glycolysis to satisfy their increased demand for energy and biosynthetic precursors. However, this process may create unfavorable microenvironments, such as increased acidity, leading to cytotoxicity. Our previous study demonstrated that arecoline induces anoikis of HA22T/VGH hepatoma cells. The present study aimed to examine if arecoline induced anoikis is related to the glycolytic pathway and explore the underlying mechanisms...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/29144182/plasma-lyte-148-vs-hartmann-s-solution-for-cardiopulmonary-bypass-pump-prime-a-prospective-double-blind-randomized-trial
#15
Laurence Weinberg, Elizabeth Chiam, James Hooper, Frank Liskaser, Angela Kim Hawkins, Denise Massie, Andrew Ellis, Chong O Tan, David Story, Rinaldo Bellomo
BACKGROUND: The mechanisms of acid-base changes during cardiopulmonary bypass (CPB) remain unclear. We tested the hypothesis that, when used as CPB pump prime solutions, Plasma-Lyte 148 (PL) and Hartmann's solution (HS) have differential mechanisms of action in their contribution to acid-base changes. METHODS: We performed a prospective, double-blind, randomized trial in adult patients undergoing elective cardiac surgery with CPB. Participants received a CPB prime solution of 2000 mL, with either PL or HS...
November 1, 2017: Perfusion
https://www.readbyqxmd.com/read/29137091/the-effects-of-hypervolemic-infusion-on-microcirculation-perfusion-of-patients-during-laparoscopic-colorectal-surgery
#16
RANDOMIZED CONTROLLED TRIAL
Yunxin Deng, Qianlin Zhu, Buwei Yu, Minhua Zheng, Jue Jin
The aim of this study is to assess the effects of hypervolemic infusion with different solutions on microcirculation perfusion during laparoscopic colorectal surgery.Thirty-six patients were randomly divided into Ringer lactate solution [RL] group, succinylated gelatin injection [Gel] group, and hypertonic saline hydroxyethyl starch 40 injection [HS] group. Hypervolemic infusion was performed during the induction period of general anesthesia. Arterial blood-gas parameters, noninvasive hemodynamics, gastric tonometry values, and central venous pressure (CVP) were compared at baseline (T1); the end of hypervolemic infusion (T2); 5 min (T3), 15 min (T4), 30 min (T5), and 60 min (T6) during pneumoperitoneum; 5 min (T7), 15 min (T8), and 25 min (T9) after pneumoperitoneum...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29106770/probing-the-cardiac-malate-aspartate-shuttle-non-invasively-using-hyperpolarized-1-2-13-c2-pyruvate
#17
Albert P Chen, Angus Z Lau, Yi-Ping Gu, Marie A Schroeder, Jennifer Barry, Charles H Cunningham
Previous studies have demonstrated that using hyperpolarized [2-(13) C]pyruvate as a contrast agent can reveal (13) C signals from metabolites associated with the tricarboxylic acid (TCA) cycle. However, the metabolites detectable from TCA cycle-mediated oxidation of [2-(13) C]pyruvate are the result of several metabolic steps. In the instance of the [5-(13) C]glutamate signal, the amplitude can be modulated by changes to the rates of pyruvate dehydrogenase (PDH) flux, TCA cycle flux and metabolite pool size...
November 6, 2017: NMR in Biomedicine
https://www.readbyqxmd.com/read/29097910/analytical-interference-by-contrast-agents-in-biochemical-assays
#18
Sigrid Otnes, Niels Fogh-Andersen, Janne Rømsing, Henrik S Thomsen
Objective: To provide a clinically relevant overview of the analytical interference by contrast agents (CA) in laboratory blood test measurements. Materials and Methods: The effects of five CAs, gadobutrol, gadoterate meglumine, gadoxetate disodium, iodixanol, and iomeprol, were studied on the 29 most frequently performed biochemical assays. One-day-old plasma, serum, and whole blood were spiked with doses of each agent such that the gadolinium agents and the iodine agents reached concentrations of 0...
2017: Contrast Media & Molecular Imaging
https://www.readbyqxmd.com/read/29083247/tight-coupling-of-astrocyte-energy-metabolism-to-synaptic-activity-revealed-by-genetically-encoded-fret-nanosensors-in-hippocampal-tissue
#19
Iván Ruminot, Jana Schmälzle, Belén Leyton, L Felipe Barros, Joachim W Deitmer
The potassium ion, K(+), a neuronal signal that is released during excitatory synaptic activity, produces acute activation of glucose consumption in cultured astrocytes, a phenomenon mediated by the sodium bicarbonate cotransporter NBCe1 ( SLC4A4). We have explored here the relevance of this mechanism in brain tissue by imaging the effect of neuronal activity on pH, glucose, pyruvate and lactate dynamics in hippocampal astrocytes using BCECF and FRET nanosensors. Electrical stimulation of Schaffer collaterals produced fast activation of glucose consumption in astrocytes with a parallel increase in intracellular pyruvate and biphasic changes in lactate ...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/29077544/blood-chemistry-and-hematology-values-in-healthy-and-rehabilitated-rough-toothed-dolphins-steno-bredanensis
#20
Charles A Manire, C Melanie Reiber, Cécile Gaspar, Howard L Rhinehart, Lynne Byrd, Jay Sweeney, Kristi L West
Rehabilitation efforts for live stranded marine mammals are guided by diagnostic measures of blood chemistry and hematology parameters obtained from each individual undergoing treatment. Despite the widespread use of blood parameters, reference values are not available in the literature from healthy rough-toothed dolphins, Steno bredanensis, with which to infer the health status of an animal. We examined serum or plasma chemistry and hematology data from 17 rough-toothed dolphins either housed at Dolphin Quest French Polynesia or during their rehabilitation at the Dolphin and Whale Hospital in Sarasota, Florida between 1994 and 2005...
October 27, 2017: Journal of Wildlife Diseases
keyword
keyword
108198
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"