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lactate clearance

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https://www.readbyqxmd.com/read/29625388/crocin-reverses-unilateral-renal-ischemia-reperfusion-injury-induced-augmentation-of-oxidative-stress-and-toll-like-receptor-4-activity
#1
Hadeer O Abou-Hany, Hoda Atef, Eman Said, Hassan A Elkashef, Hatem A Salem
Renal Ischemia (RI) usually develops as a secondary manifestation of hypertension, various cardiovascular disorders and renal transplantation. It exerts hypoxic oxidative stress to kidneys, together with stimulation of several immune-mediated inflammatory cascades. Such events eventually damage renal tubules and glomeruli, driving acute kidney injury (AKI) and ultimately, renal failure. Crocin; the main bioactive constituent of Crocus sativus extract has been reported to demonstrate numerous pharmacological merits...
March 27, 2018: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/29618747/arteriovenous-blood-metabolomics-an-efficient-method-to-determine-the-key-metabolic-pathway-for-milk-synthesis-in-the-intra-mammary-gland
#2
Bing Wang, Huizeng Sun, Xuehui Wu, Linshu Jiang, Le Luo Guan, Jianxin Liu
The present study aimed to identify metabolic signature changes of the arteriovenous metabolome and the new metabolites that involved in mammary biological process during milk synthesis. GC/MS-based metabolomics profiling of arteriovenous plasma from 30 lactating dairy cows fed three diets identified a total of 144 metabolites. Phenylalanine and tyrosine, involved in aminoacyl-tRNA biosynthesis and phenylalanine metabolism, were shown higher expression in the artery than in the vein based on both GC/MS and targeted analysis for cows fed both alfalfa hay diet and rice straw diet...
April 4, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29608551/early-lactate-values-after-out-of-hospital-cardiac-arrest-associations-with-one-year-outcome
#3
Johanna Laurikkala, Markus B Skrifvars, Minna Bäcklund, Marjaana Tiainen, Stepani Bendel, Jaana Karhu, Tero Varpula, Jukka Vaahersalo, Ville Pettilä, Erika Wilkman
BACKGROUND: Previous studies have shown associations between high admission serum lactate, lower lactate clearance and increased short-term mortality after out-hospital cardiac arrest (OHCA). We studied whether lactate levels predict long- term outcome after OHCA. METHODS: We included 458 OHCA patients with lactate measurements during intensive care unit (ICU) stay from the prospective FINNRESUSCI study. We evaluated thresholds for time-weighted (TW) mean lactate values for the first 24, 48 and 72 hours...
March 30, 2018: Shock
https://www.readbyqxmd.com/read/29564205/from-gut-feeling-to-objectivity-machine-preservation-of-the-liver-as-a-tool-to-assess-organ-viability
#4
REVIEW
Christopher J E Watson, Ina Jochmans
Purpose of Review: The purpose of this review was to summarise how machine perfusion could contribute to viability assessment of donor livers. Recent Findings: In both hypothermic and normothermic machine perfusion, perfusate transaminase measurement has allowed pretransplant assessment of hepatocellular damage. Hypothermic perfusion permits transplantation of marginal grafts but as yet has not permitted formal viability assessment. Livers undergoing normothermic perfusion have been investigated using parameters similar to those used to evaluate the liver in vivo...
2018: Current Transplantation Reports
https://www.readbyqxmd.com/read/29557342/characterization-of-plasmodium-lactate-dehydrogenase-and-histidine-rich-protein-2-clearance-patterns-via-rapid-on-bead-detection-from-a-single-dried-blood-spot
#5
Christine F Markwalter, Lauren E Gibson, Lwiindi Mudenda, Danielle W Kimmel, Saidon Mbambara, Philip E Thuma, David W Wright
A rapid, on-bead ELISA for Plasmodium lactate dehydrogenase ( p LDH) and Plasmodium falciparum histidine-rich protein 2 (HRP2) was adapted for use with dried blood spot (DBS) samples. This assay detected both biomarkers from a single DBS sample with only 45 minutes of total incubation time and detection limits of 600 ± 500 pM ( p LDH) and 69 ± 30 pM (HRP2), corresponding to 150 and 24 parasites/μL, respectively. This sensitive and reproducible on-bead detection method was used to quantify p LDH and HRP2 in patient DBS samples from rural Zambia collected at multiple time points after treatment...
March 19, 2018: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29546618/led-session-prior-incremental-step-test-enhance-vo-2max-in-running
#6
Paulo V Mezzaroba, Dalton M Pessôa Filho, Alessandro M Zagatto, Fabiana Andrade Machado
This study aimed to investigate the effect of prior LED sessions on the responses of cardiorespiratory parameters during the running incremental step test. Twenty-six healthy, physically active, young men, aged between 20 and 30 years, took part in this study. Participants performed two incremental load tests after placebo (PLA) and light-emitting diode application (LED), and had their gas exchange, heart rate (HR), blood lactate, and rating of perceived exertion (RPE) monitored during all tests. The PLA and LED conditions were compared using the dependent Student t test with significance set at 5%...
March 15, 2018: Lasers in Medical Science
https://www.readbyqxmd.com/read/29544906/repeat-lactate-level-predicts-mortality-better-than-rate-of-clearance
#7
Zachary D W Dezman, Angela C Comer, Gordon S Smith, Peter F Hu, Colin F Mackenzie, Thomas M Scalea, Jon Mark Hirshon
BACKGROUND: Lactate clearance has been developed into a marker of resuscitation in trauma, but no study has compared the predictive power of the various clearance calculations. Our objective was to determine which method of calculating lactate clearance best predicted 24-hour and in-hospital mortality after injury. STUDY DESIGN: Retrospective chart review of patients admitted to a Level-1 trauma center directly from the scene of injury from 2010 to 2013 who survived >15min, had an elevated lactate at admission (≥3mmol/L), followed by another measurement within 24h of admission...
March 7, 2018: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29542193/hepatic-steroid-inactivating-enzymes-hepatic-portal-blood-flow-and-corpus-luteum-blood-perfusion-in-cattle
#8
C G Hart, B E Voelz, K E Brockus, C O Lemley
Production from the corpus luteum (CL) and/or hepatic steroid inactivation impacts peripheral concentrations of P4, which can alter reproductive performance. Our primary objective was to examine hepatic steroid inactivating enzymes, portal blood flow, and luteal blood perfusion at 10 days post-insemination in pregnant versus non-pregnant beef and dairy cows. Twenty early lactation Holstein cows and 20 lactating commercial beef cows were utilized for this study. At day 10 post-insemination, hepatic portal blood flow and CL blood perfusion were measured via Doppler ultrasonography...
March 14, 2018: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/29534338/-massive-metformin-overdose
#9
Angela L Chiew, Daniel F B Wright, Nicola M Dobos, Kylie McArdle, Ahmed A Mostafa, Annemarie Newth, Michael S Roberts, Geoffrey K Isbister
Massive metformin overdose can cause metabolic acidosis with hyperlactatemia. A 55-year-old female presented 5h post multi-drug overdose, including 132 g extended-release metformin. Continuous venovenous haemodiafiltration (CVVHDF) and noradrenaline were commenced due to metabolic acidosis (pH 7.0, lactate 17 mmol/L) and shock. Despite 3 hours of CVVHDF, her acidosis worsened (pH 6.83, lactate 24 mmol/L). Intermittent haemodialysis(IHD) improved acidosis (pH 7.13, lactate 26 mmol/l), but again worsened (pH 6...
March 13, 2018: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/29519240/lactate-clearance-as-a-prognostic-marker-of-mortality-in-severely-ill-febrile-children-in-east-africa
#10
A Aramburo, Jim Todd, Elizabeth C George, Sarah Kiguli, Peter Olupot-Olupot, Robert O Opoka, Charles Engoru, Samuel O Akech, Richard Nyeko, George Mtove, Diana M Gibb, Abdel G Babiker, Kathryn Maitland
BACKGROUND: Hyperlactataemia (HL) is a biomarker of disease severity that predicts mortality in patients with sepsis and malaria. Lactate clearance (LC) during resuscitation has been shown to be a prognostic factor of survival in critically ill adults, but little data exist for African children living in malaria-endemic areas. METHODS: In a secondary data analysis of severely ill febrile children included in the Fluid Expansion as Supportive Therapy (FEAST) resuscitation trial, we assessed the association between lactate levels at admission and LC at 8 h with all-cause mortality at 72 h (d72)...
March 9, 2018: BMC Medicine
https://www.readbyqxmd.com/read/29495219/-central-venous-arterial-carbon-dioxide-tension-to-arterial-central-venous-oxygen-content-ratio-combined-with-lactate-clearance-rate-as-early-resuscitation-goals-of-septic-shock
#11
X H Gao, P J Li, W Cao
Objective: To investigate the prognostic significance of central venous-arterial carbon dioxide tension to arterial-venous oxygen content ratio (Pcv-aCO(2)/Ca-cvO(2)) combined with lactate clearance rate (LCR) as early resuscitation goals of septic shock. Methods: One hundred and forty-five septic shock patients admitted to Second Department of Critical Care Medicine of Lanzhou University Second Hospital from March 2013 to May 2017 were enrolled in this study.All septic shock patients received an initial resuscitation therapy according to early goal-directed therapy...
February 13, 2018: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29492515/-the-glymphatic-system-concept-function-and-research-progresses
#12
Lin-Hui Wang, Zi-Lan Wang, Wen-Yue Chen, Ming-Jia Chen, Guang-Yin Xu
The glymphatic system is a cerebrospinal fluid-interstitial fluid exchange system dependent on the water channel aquaporin-4 polarized on astrocyte endfeet, which is proposed to account for the clearance of abnormal proteins (e.g. β-amyloid) and metabolites (e.g. lactate) from the brain. Accumulating studies have revealed that glymphatic activity during sleep and general anesthesia is dramatically enhanced, while its function is significantly damaged during aging, traumatic brain injury, Alzheimer's disease, stroke, and diabetes...
February 25, 2018: Sheng Li Xue Bao: [Acta Physiologica Sinica]
https://www.readbyqxmd.com/read/29460288/pharmacokinetics-of-multiple-doses-of-transdermal-flunixin-meglumine-in-adult-holstein-dairy-cows
#13
M D Kleinhenz, P J Gorden, J S Smith, J A Schleining, K E Kleinhenz, L L Wulf, P K Sidhu, D Rea, J F Coetzee
A transdermal formulation of the nonsteroidal anti-inflammatory drug, flunixin meglumine, has been approved in the United States and Canada for single-dose administration. Transdermal flunixin meglumine was administered to 10 adult Holstein cows in their second or third lactation at the label dose of 3.33 mg/kg every 24 hr for three total treatments. Plasma flunixin concentrations were determined using high-pressure liquid chromatography with mass spectroscopy (HPLC-MS). Pharmacokinetic analysis was completed on each individual animal with noncompartmental methods using computer software...
February 20, 2018: Journal of Veterinary Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/29445877/sodium-lactate-improves-renal-microvascular-thrombosis-compared-to-sodium-bicarbonate-and-0-9-nacl-in-a-porcine-model-of-endotoxic-shock-an-experimental-randomized-open-label-controlled-study
#14
Thibault Duburcq, Arthur Durand, Antoine Tournoys, Viviane Gnemmi, Valery Gmyr, François Pattou, Mercedes Jourdain, Fabienne Tamion, Emmanuel Besnier, Sebastien Préau, Erika Parmentier-Decrucq, Daniel Mathieu, Julien Poissy, Raphaël Favory
BACKGROUND: Sodium lactate seemed to improve fluid balance and avoid fluid overload. The objective of this study was to determine if these beneficial effects can be at least partly explained by an improvement in disseminated intravascular coagulation (DIC)-associated renal microvascular thrombosis. METHODS: Ancillary work of an interventional randomized open label controlled experimental study. Fifteen female "Large White" pigs (2 months old) were challenged with intravenous infusion of E...
February 14, 2018: Annals of Intensive Care
https://www.readbyqxmd.com/read/29432347/lactate-level-versus-lactate-clearance-for-predicting-mortality-in-patients-with-septic-shock-defined-by-sepsis-3
#15
Seung Mok Ryoo, JungBok Lee, Yoon-Seon Lee, Jae Ho Lee, Kyoung Soo Lim, Jin Won Huh, Sang-Bum Hong, Chae-Man Lim, Younsuck Koh, Won Young Kim
OBJECTIVES: This study aimed to compare the prognostic value of lactate level and lactate clearance at 6 hours after septic shock recognition. And, we performed it to determine lactate kinetics in the Sepsis-3 defined septic shock. DESIGN: This retrospective study was performed from a prospective septic shock registry. SETTINGS: This study was performed at single urban tertiary center. And, all patients were treated with protocol-driven resuscitation bundle therapy between 2010 and 2016...
February 9, 2018: Critical Care Medicine
https://www.readbyqxmd.com/read/29419931/observations-on-the-ex-situ-perfusion-of-livers-for-transplantation
#16
Christopher J E Watson, Vasilis Kosmoliaptsis, Caitlin Pley, Lucy Randle, Corinna Fear, Keziah Crick, Alexander E Gimson, Michael Allison, Sara Upponi, Rebecca Brais, Ina Jochmans, Andrew J Butler
Normothermic ex situ liver perfusion might allow viability assessment of livers before transplantation. Perfusion characteristics were studied in 47 liver perfusions, of which 22 resulted in transplants. Hepatocellular damage was reflected in the perfusate transaminase concentrations, which correlated with post-transplant peak transaminase levels. Lactate clearance occurred within 3 hours in 46 of 47 perfusions, and glucose rose initially during perfusion in 44. Three livers required higher levels of bicarbonate support to maintain physiological pH, including one developing primary non-function...
February 8, 2018: American Journal of Transplantation
https://www.readbyqxmd.com/read/29414685/the-small-intestine-converts-dietary-fructose-into-glucose-and-organic-acids
#17
Cholsoon Jang, Sheng Hui, Wenyun Lu, Alexis J Cowan, Raphael J Morscher, Gina Lee, Wei Liu, Gregory J Tesz, Morris J Birnbaum, Joshua D Rabinowitz
Excessive consumption of sweets is a risk factor for metabolic syndrome. A major chemical feature of sweets is fructose. Despite strong ties between fructose and disease, the metabolic fate of fructose in mammals remains incompletely understood. Here we use isotope tracing and mass spectrometry to track the fate of glucose and fructose carbons in vivo, finding that dietary fructose is cleared by the small intestine. Clearance requires the fructose-phosphorylating enzyme ketohexokinase. Low doses of fructose are ∼90% cleared by the intestine, with only trace fructose but extensive fructose-derived glucose, lactate, and glycerate found in the portal blood...
February 6, 2018: Cell Metabolism
https://www.readbyqxmd.com/read/29405669/usefulness-of-post-reperfusion-lactate-clearance-for-predicting-early-graft-recovery-in-liver-transplant-patients-a-single-centre-study
#18
Valter Perilli, Paola Aceto, Teresa Sacco, Pierpaolo Ciocchetti, Domenico Papanice, Carlo Lai, Liliana Sollazzi
BACKGROUND: The role of post-reperfusion lactate clearance in assessing graft function has not yet been investigated. The aim of this study was to examine whether lactate clearance, assessed in the post-reperfusion phase, can predict poor graft function in liver transplant patients. METHODS: Seventy patients undergoing liver transplantation (LT) were enrolled. Standardised anaesthesia and intraoperative monitoring were applied. The lactate level measured immediately after venous reperfusion and 6 hours later were used to calculate lactate clearance by the following formula: [(reperfusion lactate - 6h post-reperfusion lactate)/reperfusion lactate] ×100...
February 5, 2018: Minerva Anestesiologica
https://www.readbyqxmd.com/read/29397598/-the-clinical-significance-of-microcirculation-and-oxygen-metabolism-evaluation-in-acute-kidney-injury-assessment-in-patients-with-septic-shock-after-resuscitation
#19
C Yu, D W Liu, X T Wang, H W He, P Pan, Z Q Xing
Objective: To evaluate the value of microcirculation and oxygen metabolism evaluation (MicrOME) in acute kidney injury(AKI) evaluation in patients with septic shock after resuscitation. Methods: Consecutive patients with septic shock after resuscitation and mechanical ventilation were enrolled from October 2016 to February 2017 in ICU at Peking Union Medical College Hospital.Patients were divided into 3 groups based on 10 min transcutaneous oxygen challenge test transcutaneous partial pressure of oxygen(PtcO(2))and venoarterial pressure of carbon dioxide difference (Pv-aCO(2)) /arteriovenous O(2) content difference (Ca-vO(2)) by blood gas analysis, i...
February 1, 2018: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
https://www.readbyqxmd.com/read/29397165/plasma-glucose-and-nonesterified-fatty-acids-response-to-epinephrine-challenges-in-dairy-cows-during-a-670-d-lactation
#20
L C Marett, M J Auldist, W J Wales, K L Macmillan, F R Dunshea, B J Leury
This experiment investigated the metabolic response to a 2-dose epinephrine challenge of dairy cows undergoing an extended lactation. Twelve multiparous Holstein-Friesian cows that calved in late winter in a seasonally calving pasture-based dairying system were managed for a 670-d lactation by delaying rebreeding. In each of four 40-d experimental periods commencing at 73, 217, 422, and 520 (±9.1) d in milk (DIM), cows were offered a diet of perennial ryegrass (73 and 422 DIM) or pasture hay and silage (217 and 520 DIM), supplemented with 1 (CON; n = 6) or 6 kg of grain (GRN; n = 6) as a ration...
January 31, 2018: Journal of Dairy Science
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