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Lactate AND Bicarbonate

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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/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
#3
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/28188168/metformin-associated-lactic-acidosis-treated-with-continuous-renal-replacement-therapy
#4
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
#5
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/28149822/a-profile-of-metabolic-acidosis-in-patients-with-sepsis-in-an-intensive-care-unit-setting
#6
Kartik Ganesh, R N Sharma, Jaicob Varghese, M G K Pillai
CONTEXT: Metabolic acidosis is frequently found in patients with severe sepsis. An understanding of types of acidosis in sepsis and their evolution over the course of treatment may give us insight into the behavior of acid-base balance in these patients. AIMS: To describe at Intensive Care Unit (ICU) admission and over the first 5 days the composition of metabolic acidosis in patients with sepsis and to evaluate and compare acidosis patterns in survivors and nonsurvivors...
October 2016: International Journal of Critical Illness and Injury Science
https://www.readbyqxmd.com/read/28148492/rest-interval-duration-does-not-influence-adaptations-in-acid-base-transport-proteins-following-10-weeks-of-sprint-interval-training-in-active-women
#7
Cian McGinley, David John Bishop
The removal of protons (H(+)) produced during intense exercise is important for skeletal muscle function, yet it remains unclear how best to structure exercise training to improve muscle pH regulation. We investigated whether 4 weeks of work-matched, sprint-interval training (SIT), performed 3 days per week, with either 1 min (Rest-1; n = 7) or 5 min (Rest-5; n = 7) of rest between sprints, influenced adaptations in acid/base transport protein content, non-bicarbonate muscle buffer capacity (βmin vitro), and exercise capacity in active women...
February 1, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28140639/measured-and-calculated-variables-of-global-oxygenation-in-healthy-neonatal-foals
#8
David M Wong, Kate L Hepworth-Warren, Beatrice T Sponseller, Joan M Howard, Chong Wang
OBJECTIVE To assess multiple central venous and arterial blood variables that alone or in conjunction with one another reflect global oxygenation status in healthy neonatal foals. ANIMALS 11 healthy neonatal foals. PROCEDURES Central venous and arterial blood samples were collected from healthy neonatal foals at 12, 24, 36, 48, 72, and 96 hours after birth. Variables measured from central venous and arterial blood samples included oxygen saturation of hemoglobin, partial pressure of oxygen, lactate concentration, partial pressure of carbon dioxide, and pH...
February 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28134407/-metformin-associated-lactic-acidosis-and-acute-kidney-injury
#9
Paolo Greco, Giuseppe Regolisti, Riccardo Antoniotti, Caterina Maccari, Elisabetta Parenti, Silvia Corrado, Enrico Fiaccadori
Metformin is recommended as the treatment of choice in patients with type 2 diabetes mellitus because of its efficacy, general tolerability and low cost. Recent guidelines have extended the use of metformin to patients with Chronic Kidney Disease (CKD) up to stage III. However, in the recent literature, cases of MALA (metformin-associated lactic acidosis) are increasingly reported. MALA is the most dangerous side effect of the drug, with an incidence rate of 2-9 cases per 100000 person-years of exposure. We report on two patients with accidental metformin overdose, severe lactic acidosis and acute kidney injury...
November 2016: Giornale Italiano di Nefrologia: Organo Ufficiale Della Società Italiana di Nefrologia
https://www.readbyqxmd.com/read/28077541/the-role-of-bicarbonate-precursors-in-balanced-fluids-during-haemorrhagic-shock-with-and-without-compromised-liver-function
#10
B Ergin, A Kapucu, P Guerci, C Ince
BACKGROUND: Lactate, acetate, and gluconate are anions used in balanced resuscitation fluids, of which lactate and acetate are considered bicarbonate precursors. This study investigated the role of the liver in the ability of balanced and unbalanced solutions to correct acid-base alterations and renal haemodynamics and microvascular oxygenation in a rat model of resuscitated haemorrhagic shock. METHODS: Ringer's lactate, Ringer's acetate, PlasmaLyte, or normal saline were administered following haemorrhagic shock in the presence or absence of a 70% partial liver resection...
October 2016: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/28069660/antioxidant-treatment-attenuates-lactate-production-in-diabetic-nephropathy
#11
Christoffer Laustsen, Per Mose Nielsen, Thomas Stokholm Nørlinger, Haiyun Qi, Uffe Kjærgaard Pedersen, Lotte Bonde Bertelsen, Jakob Appel Østergaard, Allan Flyvbjerg, Jan Henrik Ardenkjær-Larsen, Fredrik Palm, Hans Stødkilde-Jørgensen
The early progression of diabetic nephropathy is notoriously difficult to detect and quantify before the occurrence of substantial histological damage. Recently, hyperpolarized [1-(13)C]pyruvate has demonstrated increased lactate production in the kidney early after the onset of diabetes, implying increased lactate dehydrogenase activity as a consequence of increased nicotinamide adenine dinucleotide substrate availability due to upregulation of the polyol pathway, i.e., pseudohypoxia. In this study, we investigated the role of oxidative stress in mediating these metabolic alterations using state-of-the-art hyperpolarized magnetic resonance (MR) imaging...
January 1, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28064509/acute-salicylate-poisoning-risk-factors-for-severe-outcome
#12
Rachel M Shively, Robert S Hoffman, Alex F Manini
CONTEXT: Salicylate poisoning remains a significant public health threat with more than 20,000 exposures reported annually in the United States. OBJECTIVE: We aimed to establish early predictors of severe in-hospital outcomes in Emergency Department patients presenting with acute salicylate poisoning. METHODS: This was a secondary data analysis of adult salicylate overdoses from a prospective cohort study of acute drug overdoses at two urban university teaching hospitals from 2009 to 2013...
March 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28057513/enterolobium-contortisiliquum-is-a-cause-of-acute-ruminal-acidosis-in-sheep
#13
Rayane C Pupin, Paula V Leal, Stephanie C Lima, Gleice Kelli A Melo, Arnildo Pott, Marcelo A Araújo, Claudio S L Barros, Ricardo A A Lemos
The ingestion of pods of Enterolobium contortisiliquum is associated with digestive disturbances, photosensitivity and abortion in domestic ruminants. This experiment was designed to test the hypothesis that digestive disturbances in this toxicosis are really caused by acute ruminal acidosis. Three sheep fed large doses (10-15 g/kg/body weight [bw]) of E. contortisiliquum pods developed ruminal acidosis and were treated with sodium bicarbonate to try to control this metabolic disturbance, thus providing additional evidence of the involvement of ruminal acidosis in the pathogenesis of toxicosis...
January 3, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28028530/acid-base-and-hemodynamic-status-of-patients-with-intraoperative-hemorrhage-using-two-solution-types-crystalloid-ringer-lactate-and-1-3-sodium-bicarbonate-in-half-normal-saline-solution
#14
Sayed Jalal Hashemi, Sayed Morteza Heidari, Ahmad Yaraghi, Reza Seirafi
BACKGROUND: Intraoperative hemorrhage is one of the problems during surgery and, if it happens in a high volume without an immediate action to control, it can be fatal. Nowadays, various injectable solutions are used. The aim of this study was to compare the acid-base and hemodynamic status of the patient using two solutions, Ringer lactate and 1.3% sodium bicarbonate, in half saline solution. MATERIALS AND METHODS: This clinical trial was performed at the Al-Zahra Hospital in 2013 on 66 patients who were randomly selected and put in two studied groups at the onset of hemorrhage...
2016: Advanced Biomedical Research
https://www.readbyqxmd.com/read/27999775/protective-ventilation-improves-gas-exchange-reduces-incidence-of-atelectases-and-affects-metabolic-response-in-major-pancreatoduodenal-surgery
#15
Vsevolod V Kuzkov, Ludmila N Rodionova, Yana Y Ilyina, Aleksey A Ushakov, Maria M Sokolova, Eugenia V Fot, Boris L Duberman, Mikhail Y Kirov
BACKGROUND: Protective perioperative ventilation has been shown to improve outcomes and reduce the incidence of postoperative pulmonary complications. The goal of this study was to assess the effects of ventilation with low tidal volume (VT) either alone or in a combination with moderate permissive hypercapnia in major pancreatoduodenal interventions. MATERIALS AND METHODS: Sixty adult patients scheduled for elective pancreatoduodenal surgery with duration >2 h were enrolled into a prospective single-center study...
2016: Frontiers in Medicine
https://www.readbyqxmd.com/read/27975067/hyperlactatemia-and-the-outcome-of-type-2-diabetic-patients-suffering-acute-myocardial-infarction
#16
Jovanovic Aleksandar, Peric Vladan, Snezana Markovic-Jovanovic, Radojica Stolic, Jadranka Mitic, Tanja Smilic
Background. Increased lactate production is frequent in unregulated/complicated diabetes mellitus. Methods. Three groups, each consisting of 40 patients (type 2 diabetics with myocardial infarction, DM+AMI, nondiabetics suffering myocardial infarction, MI, and diabetics with no apparent cardiovascular pathology, DM group), were tested for pH, serum bicarbonate and electrolytes, blood lactate, and CK-MB. Results. Blood lactate levels were markedly higher in AMI+DM compared to MI group (4.54 ± 1.44 versus 3...
2016: Journal of Diabetes Research
https://www.readbyqxmd.com/read/27974893/recoverable-record-high-lactic-acidosis-in-a-patient-with-glycogen-storage-disease-type-1-a-mixed-type-a-and-type-b-lactate-disorder
#17
Yonatan Oster, Isaiah D Wexler, Samuel N Heyman, Elchanan Fried
A 17-year-old patient with GSD type 1a (von Gierke disease) was hospitalized with an extremely elevated serum lactate following an intercurrent infection and interruption of his frequent intake of carbohydrates. The patient developed shock, oliguric renal failure, and cardiorespiratory failure requiring mechanical ventilation and inotropes. At the peak of metabolic decompensation and clinical instability, serum lactate reached a level of 47.6 mmol/L which was accompanied by a severe anion gap metabolic acidosis with a pH of 6...
2016: Case Reports in Medicine
https://www.readbyqxmd.com/read/27957817/monocarboxylate-transporter-1-mediates-the-protective-effects-of-neutral-ph-bicarbonate-lactate-buffered-peritoneal-dialysis-fluid-on-cell-viability-and-apoptosis
#18
Akihiro Kuma, Masahito Tamura, Nana Ishimatsu, Yoshikazu Harada, Hiroto Izumi, Tetsu Miyamoto, Yumi Furuno, Yoko Nakano, Ryota Serino, Yutaka Otsuji
We investigated the effects of bicarbonate/lactate-buffered peritoneal dialysis fluid (B/L-PDF) and lactate-buffered PDF (L-PDF) on cell viability and apoptosis, focusing on monocarboxylate transporters (MCTs). MCT-1 transports lactate into cells. Cell viability and apoptosis of human peritoneal mesothelial cells (HPMCs) were examined by water-soluble tetrazolium salt-1 and TUNEL assays, respectively. The relative number of viable HPMCs was significantly decreased by L-PDF at 48 h (8.8 ± 0.4%) compared with cells cultured in M199, but not by B/L-PDF (66...
February 2017: Therapeutic Apheresis and Dialysis
https://www.readbyqxmd.com/read/27925243/hemodiafiltration-a-technique-for-physiological-correction-of-priming-solution-in-pediatric-cardiac-surgery-an-in-vitro-study
#19
Pankaj Garg, Arvind Kumar Bishnoi, Kartik Patel, Vivek Wadhawa, Jigar Surti, Atul Solanki, Komal Shah, Sanjay Patel
Pediatric cardiopulmonary bypass (CPB) circuit invariably requires priming with packed red blood cells (PRBCs). Metabolic composition of stored PRBCs is unphysiological and becomes worse with increasing duration of storage. It is recommended to correct these abnormalities before initiation of CPB. We tested the hypothesis that hemodiafiltration of the prime with 0.45% saline is sufficient for reducing the metabolic load and reaching a physiologic state. In an in vitro study, 100 mL of blood each from 45 units of PRBCs stored for 3-20 days were used for priming the 45 neonatal CPB circuits...
December 7, 2016: Artificial Organs
https://www.readbyqxmd.com/read/27918679/movement-patterns-and-metabolic-responses-during-an-international-rugby-sevens-tournament
#20
Anthony Couderc, Claire Thomas, Mathieu Lacome, Julien Piscione, Julien Robineau, Rémi Delfour-Peyrethon, Rachel Borne, Christine Hanon
PURPOSE: This study investigated the running-demands and associated metabolic perturbations during an official rugby sevens tournament. METHODS: Twelve elite players participated in seven matches wearing Global Positioning System units. Maximal sprinting speed (MSS) and maximal aerobic speed (MAS) were measured. High-intensity threshold was individualized relative to MAS (>100% of MAS) and very high-intensity distance were reported relative to both MAS and MSS...
December 5, 2016: International Journal of Sports Physiology and Performance
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