keyword
MENU ▼
Read by QxMD icon Read
search

Stewart acid-base

keyword
https://www.readbyqxmd.com/read/28701177/longitudinal-development-of-the-gut-microbiome-and-metabolome-in-preterm-neonates-with-late-onset-sepsis-and-healthy-controls
#1
Christopher J Stewart, Nicholas D Embleton, Emma C L Marrs, Daniel P Smith, Tatiana Fofanova, Andrew Nelson, Tom Skeath, John D Perry, Joseph F Petrosino, Janet E Berrington, Stephen P Cummings
BACKGROUND: Late onset sepsis (LOS) in preterm infants is associated with considerable morbidity and mortality. While studies have implicated gut bacteria in the aetiology of the disease, functional analysis and mechanistic insights are generally lacking. We performed temporal bacterial (n = 613) and metabolomic (n = 63) profiling on extensively sampled stool from 7 infants with LOS and 28 matched healthy (no LOS or NEC) controls. RESULTS: The bacteria isolated in diagnostic blood culture usually corresponded to the dominant bacterial genera in the gut microbiome...
July 12, 2017: Microbiome
https://www.readbyqxmd.com/read/28693594/the-impact-of-phosphate-balanced-crystalloid-infusion-on-acid-base-homeostasis-palance-study-study-protocol-for-a-randomized-controlled-trial
#2
Judith-Irina Pagel, Nikolai Hulde, Tobias Kammerer, Michaela Schwarz, Daniel Chappell, Alexander Burges, Klaus Hofmann-Kiefer, Markus Rehm
BACKGROUND: This study aims to investigate the effects of a modified, balanced crystalloid including phosphate in a perioperative setting in order to maintain a stable electrolyte and acid-base homeostasis in the patient. METHODS/DESIGN: This is a single-centre, open-label, randomized controlled trial involving two parallel groups of female patients comparing a perioperative infusion regime with sodium glycerophosphate and Jonosteril® (treatment group) or Jonosteril® (comparator) alone...
July 10, 2017: Trials
https://www.readbyqxmd.com/read/28679552/randomized-controlled-trial-of-dietary-fiber-for-the-prevention-of-radiation-induced-gastrointestinal-toxicity-during-pelvic-radiotherapy
#3
Linda Wedlake, Clare Shaw, Helen McNair, Amyn Lalji, Kabir Mohammed, Tanya Klopper, Lindsey Allan, Diana Tait, Maria Hawkins, Navita Somaiah, Susan Lalondrelle, Alexandra Taylor, Nicholas VanAs, Alexandra Stewart, Sharadah Essapen, Heather Gage, Kevin Whelan, H Jervoise N Andreyev
Background: Therapeutic radiotherapy is an important treatment of pelvic cancers. Historically, low-fiber diets have been recommended despite a lack of evidence and potentially beneficial mechanisms of fiber.Objective: This randomized controlled trial compared low-, habitual-, and high-fiber diets for the prevention of gastrointestinal toxicity in patients undergoing pelvic radiotherapy.Design: Patients were randomly assigned to low-fiber [≤10 g nonstarch polysaccharide (NSP)/d], habitual-fiber (control), or high-fiber (≥18 g NSP/d) diets and received individualized counseling at the start of radiotherapy to achieve these targets...
July 5, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28655718/lipid-remodelling-and-an-altered-membrane-proteome-may-drive-the-effects-of-epa-and-dha-treatment-on-skeletal-muscle-glucose-uptake-and-protein-accretion
#4
Stewart Jeromson, Ivor Mackenzie, Mary K Doherty, Phillip D Whitfield, Gordon Bell, James Dick, Andy Shaw, Francesco Rao, Stephen Ashcroft, Andrew Philp, Stuart Galloway, Iain Gallagher, D Lee Hamilton
In striated muscle, EPA and DHA have differential effects on the metabolism of glucose and differential effects on the metabolism of protein. We have shown that, despite similar incorporation, treatment of C2C12 myotubes (CM) with EPA but not DHA improves glucose uptake and protein accretion. We hypothesized that these differential effects of EPA and DHA may be due to divergent shifts in lipidomic profiles leading to altered proteomic profiles. We therefore carried out an assessment on the impact of treating CM with EPA and DHA on lipidomic and proteomic profiles...
June 27, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28549623/standardising-rna-profiling-based-biomarker-application-in-cancer-the-need-for-robust-control-of-technical-variables
#5
REVIEW
James P Stewart, Susan Richman, Tim Maughan, Mark Lawler, Philip D Dunne, Manuel Salto-Tellez
Histopathology-based staging of colorectal cancer (CRC) has utility in assessing the prognosis of patient subtypes, but as yet cannot accurately predict individual patient's treatment response. Transcriptomics approaches, using array based or next generation sequencing (NGS) platforms, of formalin fixed paraffin embedded tissue can be harnessed to develop multi-gene biomarkers for predicting both prognosis and treatment response, leading to stratification of treatment. While transcriptomics can shape future biomarker development, currently <1% of published biomarkers become clinically validated tests, often due to poor study design or lack of independent validation...
May 23, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28423064/biochemical-evaluation-of-the-anticancer-potential-of-the-polyamine-based-nanocarrier-nano11047
#6
Tracy Murray-Stewart, Elena Ferrari, Ying Xie, Fei Yu, Laurence J Marton, David Oupicky, Robert A Casero
Synthesizing polycationic polymers directly from existing drugs overcomes the drug-loading limitations often associated with pharmacologically inert nanocarriers. We recently described nanocarriers formed from a first-generation polyamine analogue, bis(ethyl)norspermine (BENSpm), that could simultaneously target polyamine metabolism while delivering therapeutic nucleic acids. In the current study, we describe the synthesis and evaluation of self-immolative nanocarriers derived from the second-generation polyamine analogue PG-11047...
2017: PloS One
https://www.readbyqxmd.com/read/28420042/determination-of-reference-intervals-of-acid-base-parameters-in-clinically-healthy-dogs
#7
Ivana Vanova-Uhrikova, Leona Rauserova-Lexmaulova, Kristina Rehakova, Peter Scheer, Jaroslav Doubek
OBJECTIVE: To establish reference intervals for traditionally- and Stewart's approach-determined acid-base parameters in a population of clinically healthy dogs. DESIGN: Prospective study (June 2011-September 2012). SETTING: Veterinary teaching hospital. ANIMALS: Two hundred twenty-four client-owned, clinically healthy dogs. INTERVENTIONS: Blood was collected from the jugular vein and the dorsal pedal artery...
May 2017: Journal of Veterinary Emergency and Critical Care
https://www.readbyqxmd.com/read/28390055/extracorporeal-co2-removal-by-hemodialysis-in-vitro-model-and-feasibility
#8
Alexandra G May, Ayan Sen, Matthew E Cove, John A Kellum, William J Federspiel
BACKGROUND: Critically ill patients with acute respiratory distress syndrome and acute exacerbations of chronic obstructive pulmonary disease often develop hypercapnia and require mechanical ventilation. Extracorporeal carbon dioxide removal can manage hypercarbia by removing carbon dioxide directly from the bloodstream. Respiratory hemodialysis uses traditional hemodialysis to remove CO2 from the blood, mainly as bicarbonate. In this study, Stewart's approach to acid-base chemistry was used to create a dialysate that would maintain blood pH while removing CO2 as well as determine the blood and dialysate flow rates necessary to remove clinically relevant CO2 volumes...
December 2017: Intensive Care Medicine Experimental
https://www.readbyqxmd.com/read/28301845/dietary-intakes-of-arachidonic-acid-and-docosahexaenoic-acid-in-early-life-with-a-special-focus-on-complementary-feeding-in-developing-countries
#9
Stewart Forsyth, Sheila Gautier, Norman Salem
BACKGROUND: In developing countries, dietary intakes of arachidonic acid (ARA) and docosahexaenoic acid (DHA) in early life are lower than current recommended levels. This review specifically focusses on the contribution that complementary feeding makes to ARA and DHA intakes in medium- to low-income countries. The aims of the review are (1) to determine the availability of ARA and DHA food sources in developing countries, (2) to estimate the contribution of complementary feeding to dietary intakes of ARA and DHA in infants aged 6-36 months, and (3) to relate the dietary ARA and DHA intake data to key socioeconomic and health indicators...
2017: Annals of Nutrition & Metabolism
https://www.readbyqxmd.com/read/28289910/acid-base-disturbances-in-nephrotic-syndrome-analysis-using-the-co2-hco3-method-traditional-boston-model-and-the-physicochemical-method-stewart-model
#10
Tomomichi Kasagi, Hirokazu Imai, Naoto Miura, Keisuke Suzuki, Masabumi Yoshino, Hironobu Nobata, Takuhito Nagai, Shogo Banno
BACKGROUND: The Stewart model for analyzing acid-base disturbances emphasizes serum albumin levels, which are ignored in the traditional Boston model. We compared data derived using the Stewart model to those using the Boston model in patients with nephrotic syndrome. METHODS: Twenty-nine patients with nephrotic syndrome and six patients without urinary protein or acid-base disturbances provided blood and urine samples for analysis that included routine biochemical and arterial blood gas tests, plasma renin activity, and aldosterone...
March 13, 2017: Clinical and Experimental Nephrology
https://www.readbyqxmd.com/read/28274230/appraisal-of-phytochemical-and-in-vitro-biological-attributes-of-an-unexplored-folklore-rhus-punjabensis-stewart
#11
Saira Tabassum, Madiha Ahmed, Bushra Mirza, Muhammad Naeem, Muhammad Zia, Zabta Khan Shanwari, Gul Majid Khan
BACKGROUND: The role of plants for discovery of therapeutic potential accentuates the need to know their biological attributes. The present study aims to comprehend the biological attributes of Rhus punjabensis, an unexplored traditional medicinal plant. METHODS: Leaf and stem extracts of R. punjabensis prepared in 11 different organic solvents are evaluated for multimode antioxidant potential, total phenolic and flavonoid contents were determined through colorimetric assays, HPLC-DAD analysis was carried out for quantification of various polyphenols in extracts...
March 9, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28177094/-analysis-of-the-parameters-traditional-or-not-for-the-evaluation-of-the-metabolic-acidosis
#12
Caterina Urso, Salvatore Brucculeri, Caterina Carollo, Gregorio Caimi
Despite huge progress in acidbase knowledge, several confusing, irrational and controversial issues still remain. Acid-base disturbances have been usually evaluated with the traditional Henderson-Hasselbach method and with BE evaluation that seem inadequate since they define the magnitude of metabolic acidosis rather than its cause. Some studies have shown that the traditional approach is often not able to highlight the complicated acid-base disorders in critically ill patients; in these subjects, the possibility to identify tissue acids could offer a greater prognostic value than the evaluation of traditional parameters...
January 2017: Giornale Italiano di Nefrologia: Organo Ufficiale Della Società Italiana di Nefrologia
https://www.readbyqxmd.com/read/28043136/macromolecular-prodrugs-of-ribavirin-structure-function-correlation-as-inhibitors-of-influenza-infectivity
#13
Camilla Frich Riber, Tracey M Hinton, Paulina Gajda, Kaja Zuwala, Martin Tolstrup, Cameron Stewart, Alexander N Zelikin
The requirement for new antiviral therapeutics is an ever present need. Particularly lacking are broad spectrum antivirals that have low toxicity. We develop such agents based on macromolecular prodrugs whereby both the polymer chain and the drug released from the polymer upon cell entry have antiviral effects. Specifically, macromolecular prodrugs were designed herein based on poly(methacrylic acid) and ribavirin. Structure-function parameter space was analyzed via the synthesis of 10 polymer compositions varied by molar mass and drug content...
January 3, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/27990831/-clinical-evaluation-of-acid-base-status-henderson-hasselbalch-or-stewart-fencl-approach
#14
REVIEW
Karel Matoušovic, Jan Havlín, Otto Schück
Two approaches have been used in clinical evaluation the acid-base status: traditional (bicarbonate-centered) is based on the Henderson-Hasselbalch equation complemented by calculation of the anion gap, and more recent quantitative approach proposed by Stewart and Fencl. The latter method defines the three independent variables, which regulate pH. These include: the difference between the sum of charges carried by strong plasma cations and anions termed the strong ion difference - SID (decrease causes acidosis, and vice versa); the total concentration of the weak non-volatile acids [Atot] (inorganic phosphate and albumin, decrease causes alkalosis and vice versa), and pCO2...
December 0: Casopís Lékar̆ů C̆eských
https://www.readbyqxmd.com/read/27861448/an-app-to-calculate-bedside-stewart-acid-base-equations
#15
John H P Friesen
No abstract text is available yet for this article.
December 2016: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/27760042/use-of-elements-of-the-stewart-model-strong-ion-approach-sid3-sid4-atot-a-side-and-sig-for-the-diagnostics-of-respiratory-acidosis-in-brachycephalic-dogs
#16
P Sławuta, G Sapikowski, B Sobieraj
Buffer systems of blood and tissues, which have the ability to bind with and give up hydrogen ions, participate in maintaining the acid-base balance (ABB) of the organism. According to the classic model, the system of carbonic acid and bicarbonates, where the first component serves the role of an acid and the second a base, determines plasma pH. The so-called Stewart model, which assumes that ions in blood serum can be separated into completely dissociated - nonbuffer and not dissociated - buffer ions which may give up or accept H+ions, also describes the ABB of the organism...
September 1, 2016: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/27753644/tryptophan-and-cysteine-mutations-in-m1-helices-of-%C3%AE-1%C3%AE-3%C3%AE-2l-%C3%AE-aminobutyric-acid-type-a-receptors-indicate-distinct-intersubunit-sites-for-four-intravenous-anesthetics-and-one-orphan-site
#17
Anahita Nourmahnad, Alex T Stern, Mayo Hotta, Deirdre S Stewart, Alexis M Ziemba, Andrea Szabo, Stuart A Forman
BACKGROUND: γ-Aminobutyric acid type A (GABAA) receptors mediate important effects of intravenous general anesthetics. Photolabel derivatives of etomidate, propofol, barbiturates, and a neurosteroid get incorporated in GABAA receptor transmembrane helices M1 and M3 adjacent to intersubunit pockets. However, photolabels have not been consistently targeted at heteromeric αβγ receptors and do not form adducts with all contact residues. Complementary approaches may further define anesthetic sites in typical GABAA receptors...
December 2016: Anesthesiology
https://www.readbyqxmd.com/read/27638212/palaeoproteomic-evidence-identifies-archaic-hominins-associated-with-the-ch%C3%A3-telperronian-at-the-grotte-du-renne
#18
Frido Welker, Mateja Hajdinjak, Sahra Talamo, Klervia Jaouen, Michael Dannemann, Francine David, Michèle Julien, Matthias Meyer, Janet Kelso, Ian Barnes, Selina Brace, Pepijn Kamminga, Roman Fischer, Benedikt M Kessler, John R Stewart, Svante Pääbo, Matthew J Collins, Jean-Jacques Hublin
In Western Europe, the Middle to Upper Paleolithic transition is associated with the disappearance of Neandertals and the spread of anatomically modern humans (AMHs). Current chronological, behavioral, and biological models of this transitional period hinge on the Châtelperronian technocomplex. At the site of the Grotte du Renne, Arcy-sur-Cure, morphological Neandertal specimens are not directly dated but are contextually associated with the Châtelperronian, which contains bone points and beads. The association between Neandertals and this "transitional" assemblage has been controversial because of the lack either of a direct hominin radiocarbon date or of molecular confirmation of the Neandertal affiliation...
October 4, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27636585/stewart-versus-traditional-approach-to-acid-base-disorders
#19
Michael Emmett
No abstract text is available yet for this article.
October 2016: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/27621395/pancreox-a-randomized-phase-iii-study-of-5-fluorouracil-leucovorin-with-or-without-oxaliplatin-for-second-line-advanced-pancreatic-cancer-in-patients-who-have-received-gemcitabine-based-chemotherapy
#20
Sharlene Gill, Yoo-Joung Ko, Christine Cripps, Annie Beaudoin, Sukhbinder Dhesy-Thind, Muhammad Zulfiqar, Pawel Zalewski, Thuan Do, Pablo Cano, Wendy Yin Han Lam, Scot Dowden, Helene Grassin, John Stewart, Malcolm Moore
PURPOSE: The standard of care for second-line therapy in patients with advanced pancreatic cancer after gemcitabine-based therapy is not clearly defined. The CONKO-003 phase III study reported a survival benefit with second-line fluorouracil (FU) and oxaliplatin using the oxaliplatin, folinic acid, and FU (OFF) regimen.(1) PANCREOX was a phase III multicenter trial to evaluate the benefit of FU and oxaliplatin administered as modified FOLFOX6 (mFOLFOX6; infusional fluorouracil, leucovorin, and oxaliplatin) versus infusional FU/leucovorin (LV) in this setting...
September 12, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
keyword
keyword
87565
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"