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lactate clearance

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https://www.readbyqxmd.com/read/28520579/the-use-of-an-acellular-oxygen-carrier-in-a-human-liver-model-of-normothermic-machine-perfusion
#1
Richard W Laing, Ricky H Bhogal, Lorraine Wallace, Yuri Boteon, Desley A H Neil, Amanda Smith, Barney T F Stephenson, Andrea Schlegel, Stefan G Hübscher, Darius F Mirza, Simon C Afford, Hynek Mergental
BACKGROUND: Normothermic machine perfusion of the liver (NMP-L) is a novel technique that preserves liver grafts under near-physiological conditions whilst maintaining their normal metabolic activity. This process requires an adequate oxygen supply, typically delivered by packed red blood cells (RBC). We present the first experience using an acellular hemoglobin-based oxygen carrier (HBOC) Hemopure in a human model of NMP-L. METHODS: Five discarded high-risk human livers were perfused with HBOC-based perfusion fluid and matched to 5 RBC-perfused livers...
May 18, 2017: Transplantation
https://www.readbyqxmd.com/read/28492385/the-prognostic-value-of-central-venous-to-arterial-co2-difference-arterial-central-venous-o2-difference-ratio-in-septic-shock-patients-with-central-venous-o2-saturation-%C3%A2-80
#2
Huaiwu He, Yun Long, Dawei Liu, Xiaoting Wang, Bo Tang
BACKGROUND: It is a great challenge for physician to assess the relationship between O2 delivery and O2 consumption in septic shock patients with high ScvO2. Recently, the venous-to-arterial CO2 difference/arterial-central venous O2 difference ratio (P(v-a)CO2/C(a-v)O2) has shown potential for reflecting anaerobic metabolism. Therefore, we evaluated the value of using the P(v-a)CO2/C(a-v)O2 ratio to predict mortality and assess anaerobic metabolism in septic shock patients with high ScvO2 (≥ 80%)...
May 10, 2017: Shock
https://www.readbyqxmd.com/read/28472012/hyperoxia-or-therapeutic-hypothermia-during-resuscitation-from-non-lethal-hemorrhagic-shock-in-swine
#3
Benedikt L Nußbaum, Tatjana Stenzel, Tamara Merz, Angelika Scheuerle, Oscar McCook, Ulrich Wachter, Josef A Vogt, José Matallo, Holger Gässler, Michael Gröger, Martin Matejovic, Enrico Calzia, Lorenz Lampl, Michael Georgieff, Peter Möller, Pierre Asfar, Peter Radermacher, Sebastian Hafner
We previously demonstrated beneficial effects of 22 h of hyperoxia following near-lethal porcine hemorrhagic shock, whereas therapeutic hypothermia was detrimental. Therefore, we investigated whether shorter exposure to hyperoxia (12 h) would still improve organ function, and whether 12 h of hypothermia with subsequent rewarming could avoid deleterious effects after less severe hemorrhagic shock.Twenty-seven anesthetized and surgically instrumented pigs underwent 3 hours of hemorrhagic shock by removal of 30% of the blood volume and titration of the mean arterial blood pressure (MAP) to 40mmHg...
May 2, 2017: Shock
https://www.readbyqxmd.com/read/28465321/programmed-mitophagy-is-essential-for-the-glycolytic-switch-during-cell-differentiation
#4
Lorena Esteban-Martínez, Elena Sierra-Filardi, Rebecca S McGreal, María Salazar-Roa, Guillermo Mariño, Esther Seco, Sylvère Durand, David Enot, Osvaldo Graña, Marcos Malumbres, Ales Cvekl, Ana María Cuervo, Guido Kroemer, Patricia Boya
Retinal ganglion cells (RGCs) are the sole projecting neurons of the retina and their axons form the optic nerve. Here, we show that embryogenesis-associated mouse RGC differentiation depends on mitophagy, the programmed autophagic clearance of mitochondria. The elimination of mitochondria during RGC differentiation was coupled to a metabolic shift with increased lactate production and elevated expression of glycolytic enzymes at the mRNA level. Pharmacological and genetic inhibition of either mitophagy or glycolysis consistently inhibited RGC differentiation...
May 2, 2017: EMBO Journal
https://www.readbyqxmd.com/read/28448951/neuromuscular-blockade-requirement-is-associated-with-good-neurologic-outcome-in-cardiac-arrest-survivors-treated-with-targeted-temperature-management
#5
Dong Hun Lee, Byung Kook Lee, Kyung Woon Jeung, Yong Hun Jung, Yong Soo Cho, Chun Song Youn, Yong Il Min
PURPOSE: We examined the association between neuromuscular blockade (NMB) requirements and outcomes and lactate clearance in cardiac arrest survivors treated with targeted temperature management (TTM). METHODS: We included consecutive adult cardiac arrest survivors treated with TTM between 2012 and 2015. NMB use was categorized into 3 groups: no NMB, bolus NMB (intermittent bolus use), and continuous NMB (continuous infusion). Serum lactate levels were measured on admission and at 12h, 24h, and 48h after admission...
April 19, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28435897/association-between-lactate-clearance-during-post-resuscitation-care-and-neurologic-outcome-in-cardiac-arrest-survivors-treated-with-targeted-temperature-management
#6
Jung Chang Kim, Byung Kook Lee, Dong Hun Lee, Yong Hun Jung, Yong Soo Cho, Sung Min Lee, Seung Joon Lee, Chi Ho Park, Kyung Woon Jeung
OBJECTIVE: We investigated the association between lactate clearance or serum lactate levels and neurologic outcomes or in-hospital mortality in cardiac arrest survivors who were treated with targeted temperature management (TTM). METHODS: A retrospective analysis of data from cardiac arrest survivors treated with TTM between 2012 and 2015 was conducted. Serum lactate levels were measured on admission and at 12, 24, and 48 hours following admission. Lactate clearance at 12, 24, and 48 hours was also calculated...
March 2017: Clinical and Experimental Emergency Medicine
https://www.readbyqxmd.com/read/28434735/effects-of-graded-removal-of-lysine-from-an-intravenously-infused-amino-acid-mixture-on-lactation-performance-and-mammary-amino-acid-metabolism-in-lactating-goats
#7
C L Guo, Y T Li, X Y Lin, M D Hanigan, Z G Yan, Z Y Hu, Q L Hou, F G Jiang, Z H Wang
To investigate responses of milk protein synthesis and mammary AA metabolism to a graded decrease of postruminal Lys supply, 4 lactating goats fitted with jugular vein, mammary vein, and carotid artery catheters and transonic blood flow detectors on the external pudic artery were used in a 4 × 4 Latin square experiment. Goats were fasted for 24 h and then received a 9-h intravenous infusion of an AA mixture plus glucose. Milk yield was recorded and samples were taken in h 2 to 8 of the infusion period; a mammary biopsy was performed in the last hour...
April 20, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28425966/endurance-training-with-or-without-glucose-fructose-ingestion-effects-on-lactate-metabolism-assessed-in-a-randomized-clinical-trial-on-sedentary-men
#8
Robin Rosset, Virgile Lecoultre, Léonie Egli, Jérémy Cros, Valentine Rey, Nathalie Stefanoni, Valérie Sauvinet, Martine Laville, Philippe Schneiter, Luc Tappy
Glucose-fructose ingestion increases glucose and lactate oxidation during exercise. We hypothesized that training with glucose-fructose would induce key adaptations in lactate metabolism. Two groups of eight sedentary males were endurance-trained for three weeks while ingesting either glucose-fructose (GF) or water (C). Effects of glucose-fructose on lactate appearance, oxidation, and clearance were measured at rest and during exercise, pre-training, and post-training. Pre-training, resting lactate appearance was 3...
April 20, 2017: Nutrients
https://www.readbyqxmd.com/read/28421289/adult-male-northern%C3%A2-elephant-seals-maintain-high-rates-of-glucose-production-during-extended-breeding-fasts
#9
Daniel E Crocker, Brian K Wenzel, Cory D Champagne, Dorian S Houser
Many species undergo natural fasts as part of their life histories. Extended fasting is associated with increased β-oxidation of fatty acids and reduced oxidation of glucose to minimize commitment of body protein to gluconeogenesis. However, the metabolic strategies used to sustain extended fasts simultaneous with high rates of energy expenditure are not well understood. Studies in fasting adult female and weanling northern elephant seals (NES) have revealed high rates of endogenous glucose production (EGP) under constraints of high nutrient demand for lactation or development but relatively low rates of metabolism...
April 18, 2017: Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology
https://www.readbyqxmd.com/read/28389122/venoarterial-extracorporeal-membrane-oxygenation-after-coronary-artery-bypass-grafting-results-of-a-multicenter-study
#10
Fausto Biancari, Magnus Dalén, Andrea Perrotti, Antonio Fiore, Daniel Reichart, Sorosh Khodabandeh, Helmut Gulbins, Svante Zipfel, Mosab Al Shakaki, Henryk Welp, Antonella Vezzani, Tiziano Gherli, Jaakko Lommi, Tatu Juvonen, Peter Svenarud, Sidney Chocron, Jean Philippe Verhoye, Karl Bounader, Giuseppe Gatti, Marco Gabrielli, Matteo Saccocci, Eeva-Maija Kinnunen, Francesco Onorati, Giuseppe Santarpino, Khalid Alkhamees, Vito G Ruggieri, Angelo M Dell'Aquila
BACKGROUND: The evidence of the benefits of using venoarterial extracorporeal membrane oxygenation (VA-ECMO) after coronary artery bypass grafting (CABG) is scarce. METHODS: We analyzed the outcomes of patients who received VA-ECMO therapy due to cardiac or respiratory failure after isolated CABG in 12 centers between 2005 and 2016. Patients treated preoperatively with ECMO were excluded from this study. RESULTS: VA-ECMO was employed in 148 patients after CABG for median of 5...
March 28, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28382499/sitagliptin-exerts-anti-apoptotic-effect-in-nephrotoxicity-induced-by-cisplatin-in-rats
#11
Rehab S Abdelrahman
Sitagliptin is a selective inhibitor of dipeptidylpeptidase-4 enzyme used for the management of diabetes mellitus type II. The anti-inflammatory, antioxidant, and anti-apoptotic properties of sitagliptin were documented. This study was designed to explore the effect of sitagliptin (10 mg/kg, orally) on nephrotoxicity induced by cisplatin (7 mg/kg, i.p.) in Sprague-Dawley rats. Nephrotoxicity of cisplatin was manifested by elevation in renal somatic index, proteinuria, blood urea nitrogen, creatinine in serum, lactate dehydrogenase, kidney malondialdehyde, NF-κB, Bax, and annexin V...
April 5, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/28381751/renal-intravascular-large-b-cell-lymphoma-a-case-report-and-review-of-the-literature
#12
Arnaud Desclaux, Estibaliz Lazaro, Jean-Baptiste Pinaquy, Mokrane Yacoub, Jean-Francois Viallard
We herein report the case of a 52-year-old woman who consulted us because of a 2-month history of a fever, anorexia and weight loss. A physical examination was unremarkable. The blood count showed mild anemia and lymphopenia, and lactate dehydrogenase was elevated. Creatinine clearance was normal and proteinuria was undetectable. CT showed enlarged kidneys. A bone marrow biopsy was normal. PET-CT showed an intense uptake of (18)fluorodeoxyglucose in both kidneys. A kidney biopsy provided the diagnosis of intravascular large B-cell lymphoma (IVLBCL)...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28367008/lactate-clearance-as-the-predictor-of-outcome-in-pediatric-septic-shock
#13
Richa Choudhary, Sadasivan Sitaraman, Anita Choudhary
CONTEXT: Septic shock can rapidly evolve into multiple system organ failure and death. In the recent years, hyperlactatemia has been found to be a risk factor for mortality in critically ill adults. AIMS: To evaluate the predictive value of lactate clearance and to determine the optimal cut-off value for predicting outcome in children with septic shock. SETTINGS AND DESIGN: A prospective observational study was performed on children with septic shock admitted to pediatric Intensive Care Unit (PICU)...
April 2017: Journal of Emergencies, Trauma, and Shock
https://www.readbyqxmd.com/read/28360825/ingestion-of-oxygenated-water-enhances-lactate-clearance-kinetics-in-trained-runners
#14
Neil Fleming, Jeremiah Vaughan, Matthew Feeback
BACKGROUND: Drinks with higher dissolved oxygen concentrations have in recent times gained popularity as a potential ergogenic aid, despite a lack of evidence regarding their efficacy. The aim of this study was to assess effects of ingestion of an oxygen supplement (OS) on exercise performance and post-exercise recovery in a group of trained runners. METHODS: Trained male runners (n = 25, mean ± SD; age 23 ± 6 years, mass 70 ± 9 kg, BMI 21.9 ± 2...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28343695/treatment-with-milk-fat-globule-epidermal-growth-factor-factor-8-mfg-e8-reduces-inflammation-and-lung-injury-in-neonatal-sepsis
#15
Laura W Hansen, Weng Lang Yang, Alexandra C Bolognese, Asha Jacob, Tracy Chen, Jose M Prince, Jeffrey M Nicastro, Gene F Coppa, Ping Wang
BACKGROUND: Sepsis remains one of the leading causes of infant death worldwide. It is characterized by uncontrolled inflammatory responses due to proven bacterial infection. Despite improvement in supportive care and the availability of effective antibiotics, no specific therapy targeting the dysregulated inflammatory response is available for neonatal sepsis. Milk fat globule epidermal growth factor-factor 8 (MFG-E8) is a secretory glycoprotein abundantly present in human milk. MFG-E8 suppresses the systemic inflammatory responses in adult murine injury models by improving the clearance of dying cells...
March 23, 2017: Surgery
https://www.readbyqxmd.com/read/28328649/early-lactate-clearance-is-associated-with-improved-outcomes-in-patients-with-postcardiac-arrest-syndrome-a-prospective-multicenter-observational-study-sos-kanto-2012-study
#16
Kei Hayashida, Masaru Suzuki, Naohiro Yonemoto, Shingo Hori, Tomoyoshi Tamura, Atsushi Sakurai, Yoshio Tahara, Ken Nagao, Arino Yaguchi, Naoto Morimura
OBJECTIVES: To determine whether early lactate reduction is associated with improved survival and good neurologic outcome in patients with out-of-hospital cardiac arrest. DESIGN: Ad hoc data analysis of a prospective, multicenter observational study. SETTING: Out-of-hospital cardiac arrest patients at 67 emergency hospitals in Kanto, Japan between January 2012 and March 2013. PATIENTS: Adult patients with out-of-hospital cardiac arrest admitted to the hospital after successful resuscitation were identified...
June 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28325783/renal-handling-of-ketones-in-response-to-sodium-glucose-cotransporter-2-inhibition-in-patients-with-type-2-diabetes
#17
Ele Ferrannini, Simona Baldi, Silvia Frascerra, Brenno Astiarraga, Elisabetta Barsotti, Aldo Clerico, Elza Muscelli
OBJECTIVE: Pharmacologically induced glycosuria elicits adaptive responses in glucose homeostasis and hormone release, including decrements in plasma glucose and insulin levels, increments in glucagon release, enhanced lipolysis, and stimulation of ketogenesis, resulting in an increase in ketonemia. We aimed at assessing the renal response to these changes. RESEARCH DESIGN AND METHODS: We measured fasting and postmeal urinary excretion of glucose, β-hydroxybutyrate (β-HB), lactate, and sodium in 66 previously reported patients with type 2 diabetes and preserved renal function (estimated glomerular filtration rate ≥60 mL · min(-1) · 1...
March 21, 2017: Diabetes Care
https://www.readbyqxmd.com/read/28293125/trajectory-of-chemotherapy-for-patients-with-egfr-wild-type-advanced-pulmonary-adenocarcinoma-a-single-institution-retrospective-study
#18
Seigo Minami, Yoshitaka Ogata, Shouichi Ihara, Suguru Yamamoto, Kiyoshi Komuta
BACKGROUND: Pulmonary adenocarcinoma, recently benefited by new cytotoxic and molecularly targeted drugs, has been classified by driver mutations, such as EGFR mutations. The aim of this study was to research the proportions of patients treated with first- to third-line chemotherapy and to find influential factors for the introduction of chemotherapy and survival benefit from chemotherapy. MATERIALS AND METHODS: Data were collected retrospectively on patients who met the following criteria: adenocarcinoma, diagnosed between June 2007 and March 2015 at our hospital, stage IIIB or IV, and EGFR wild type...
2017: Lung Cancer: Targets and Therapy
https://www.readbyqxmd.com/read/28292981/vaginal-heparan-sulfate-linked-to-neutrophil-dysfunction-in-the-acute-inflammatory-response-associated-with-experimental-vulvovaginal-candidiasis
#19
Junko Yano, Mairi C Noverr, Paul L Fidel
Despite acute inflammation by polymorphonuclear neutrophils (PMNs) during vulvovaginal candidiasis (VVC), clearance of Candida fails to occur. The purpose of this study was to uncover the mechanism of vaginal PMN dysfunction. Designs included assessing PMN migration, proinflammatory mediators, and tissue damage (by analysis of the activity of lactate dehydrogenase [LDH]) in mice susceptible (C3H/HeN-C57BL/6) or resistant (CD-1) to chronic VVC (CVVC-S or CVVC-R) and testing morphology-specific Candida albicans strains under conditions of preinduced PMN migration (CVVC-S mice) or PMN depletion (CVVC-R mice)...
March 14, 2017: MBio
https://www.readbyqxmd.com/read/28281216/a-hypoperfusion-context-may-aid-to-interpret-hyperlactatemia-in-sepsis-3-septic-shock-patients-a-proof-of-concept-study
#20
Leyla Alegría, Magdalena Vera, Jorge Dreyse, Ricardo Castro, David Carpio, Carolina Henriquez, Daniela Gajardo, Sebastian Bravo, Felipe Araneda, Eduardo Kattan, Pedro Torres, Gustavo Ospina-Tascón, Jean-Louis Teboul, Jan Bakker, Glenn Hernández
BACKGROUND: Persistent hyperlactatemia is particularly difficult to interpret in septic shock. Besides hypoperfusion, adrenergic-driven lactate production and impaired lactate clearance are important contributors. However, clinical recognition of different sources of hyperlactatemia is unfortunately not a common practice and patients are treated with the same strategy despite the risk of over-resuscitation in some. Indeed, pursuing additional resuscitation in non-hypoperfusion-related cases might lead to the toxicity of fluid overload and vasoactive drugs...
December 2017: Annals of Intensive Care
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