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lactate acid

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https://www.readbyqxmd.com/read/28812382/can-elevated-lactate-and-ldh-produce-a-false-positive-enzymatic-ethanol-result-in-live-patients-presenting-to-the-emergency-department
#1
Nicholas Nacca, Michael J Hodgman, Kirselle Lao, Matthew Elkins, Michael G Holland
BACKGROUND: There have been allegations in the courtroom that elevated serum lactic acid in trauma victims can yield a falsely elevated serum ethanol assay. Most hospitals utilize an indirect method of ethanol measurement where a serum sample is added to a mix of alcohol dehydrogenase and oxidized nicotinamide adenine dinucleotide (NAD+). This allows any ethanol in the patient's serum to be metabolized to acetaldehyde, and in the process results in the reduction of NAD + to NADH. NADH is then measured using spectrophotometry...
August 16, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28811749/acute-cocoa-flavanols-intake-has-minimal-effects-on-exercise-induced-oxidative-stress-and-nitric-oxide-production-in-healthy-cyclists-a-randomized-controlled-trial
#2
Lieselot Decroix, Cajsa Tonoli, Danusa Dias Soares, Amandine Descat, Marie-José Drittij-Reijnders, Antje R Weseler, Aalt Bast, Wilhelm Stahl, Elsa Heyman, Romain Meeusen
BACKGROUND: Cocoa flavanols (CF) can stimulate vasodilation by improved nitric oxide (NO) synthesis and have antioxidant and anti-inflammatory capacities. This study aimed to examine whether acute CF intake can affect exercise-induced changes in antioxidant capacity, oxidative stress, inflammation and NO production, as well as exercise performance and recovery in well-trained cyclists. METHODS: Twelve well-trained male cyclists (mean ± SD age, VO2max: 30 ± 3 years, 63...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28810860/tartrate-resistant-acid-phosphate-as-biomarker-of-bone-turnover-over-the-lifespan-and-different-physiologic-stages-in-sheep
#3
José A Camassa, Camila C Diogo, João P A Bordelo, Marília de A Bonelli, Carlos A Viegas, Jorge T Azevedo, Nuno Dourado, Isabel R Dias
BACKGROUND: Currently, the best resources for assessment of bone tissue using imaging techniques are expensive and available in few medical facilities, thus serum or urinary bone turnover biomarkers could be useful as early indicators of prognosis. However, there is a wide range of variability in bone turnover markers due to several factors, such as different ages and metabolic stages, thus it is important to have as much data published on the subject as possible. The aim of this study was therefore to generate a reference range for alkaline phosphatase (ALP) and tartrate-resistant acid phosphatase (TRAP) and validate the already published data...
August 15, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28808392/antiurolithiatic-effect-of-sirupeelai-samoola-kudineer-a-polyherbal-siddha-decoction-on-ethylene-glycol-induced-renal-calculus-in-experimental-rats
#4
A Hannah Rachel Vasanthi, V Muthulakshmi, V Gayathri, R Manikandan, S Ananthi, Sarah Kuruvilla
BACKGROUND: Sirupeelai Samoola Kudineer (SK), a polyherbal decoction containing four medicinal plants has been used in Siddha system of medicine, practiced in Southern parts of India for the management of urolithiasis. OBJECTIVE: The present study is carried out to scientifically validate the traditional claim and to study the mechanism of action of the drug. MATERIALS AND METHODS: In the present study, anti-urolithiatic effect of SK was evaluated in Sprague-Dawley rats using ethylene glycol through drinking water and intraperitoneal injection of sodium oxalate...
July 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28807478/role-of-lipid-mediators-in-the-regulation-of-oxidative-stress-and-inflammatory-responses-in-dairy-cattle
#5
REVIEW
Vengai Mavangira, Lorraine M Sordillo
Periparturient dairy cows experience an increased incidence and severity of several inflammatory-based diseases such as mastitis and metritis. Factors associated with the physiological adaptation to the onset of lactation can impact the efficiency of the inflammatory response at a time when it is most needed to eliminate infectious pathogens that cause these economically important diseases. Oxidative stress, for example, occurs when there is an imbalance between the production of oxygen radicals during periods of high metabolic demand and the reduced capabilities of the host's antioxidant defenses...
August 2, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28807058/role-of-metabolites-of-cyclophosphamide-in-cardiotoxicity
#6
Koichiro Kurauchi, Takuro Nishikawa, Emiko Miyahara, Yasuhiro Okamoto, Yoshifumi Kawano
BACKGROUND: The dose-limiting toxic effect of cyclophosphamide (CY) is cardiotoxicity. The pathogenesis of myocardial damage is poorly understood, and there is no established means of prevention. In previous studies, we suggested that for CY-induced cardiotoxicity, whereas acrolein is the key toxic metabolite, carboxyethylphosphoramide mustard (CEPM) is protective. We sought to verify that acrolein is the main cause of cardiotoxicity and to investigate whether aldehyde dehydrogenase (ALDH), which is associated with greater CEPM production, is involved in the protective effect for cardiotoxicity...
August 14, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28806680/sequestration-of-aluminium-iii-by-different-natural-and-synthetic-organic-and-inorganic-ligands-in-aqueous-solution
#7
Paola Cardiano, Rosalia Maria Cigala, Francesco Crea, Fausta Giacobello, Ottavia Giuffrè, Anna Irto, Gabriele Lando, Silvio Sammartano
The speciation of Al(3+) in aqueous solutions containing organic and inorganic ligands important from a biological (citrate (Cit(3-)), gluconate (Gluc(-)), lactate (Lac(-)), silicate (H2SiO4(2-)), carbonate (CO3(2-)), fluoride (F(-))) and industrial (Gantrez(®); polymethyl-vinyl-ether-co-maleic acids; GTZ S95 and GTZ AN169) point of view is reported. The stability constants of Al(3+)/L(z-) complexes (L(z-) = ligand with z(-) charge) were determined by potentiometry at T = 298.15 K and 0.10 ≤ I/M ≤ 1...
August 7, 2017: Chemosphere
https://www.readbyqxmd.com/read/28806625/association-of-changes-among-body-condition-score-during-the-transition-period-with-nefa-and-bhba-concentrations-milk-production-fertility-and-health-of-holstein-cows
#8
R V Barletta, M Maturana Filho, P D Carvalho, T A Del Valle, A S Netto, F P Rennó, R D Mingoti, J R Gandra, G B Mourão, P M Fricke, R Sartori, E H Madureira, M C Wiltbank
Our objective was to evaluate the association between body condition score (BCS) change during the transition period with fertility, non-esterified fatty acids (NEFA) and beta-hydroxybutyrate (BHBA) concentrations, milk yield, and health problems of Holstein cows in a retrospective cohort study. Holstein cows (n = 232) were assessed for BCS (5 point scale; 0.25 point increments) and had blood collected at 21 and 7 d before, on the day of, and 7 and 21 d after calving. Blood samples were assayed for NEFA and BHBA concentrations...
July 27, 2017: Theriogenology
https://www.readbyqxmd.com/read/28805928/effects-of-dietary-fish-oil-supplementation-on-performance-meat-quality-and-cecal-fermentation-of-growing-rabbits
#9
M Rodríguez, M D Carro, V Valiente, N Formoso-Rafferty, P G Rebollar
The objective of this study was to investigate the effect of dietary supplementation with fish oil on growth performance (during all fatening period), carcass characteristics and fatty acid (FA) profile of muscle and fat tissues (at slaughter), as well as cecal fermentation and ileal mucosa morphology of growing rabbits (at 30, 45, and 60 d of age). Two isonitrogenous and isoenergetic diets, only differing in their fat source, were formulated and provided each to 24 does (12 per diet) and their offspring during pregnancy and lactation...
August 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28803881/cell-specific-and-dose-dependent-effects-of-pahs-on-proliferation-cell-cycle-and-apoptosis-protein-expression-and-hormone-secretion-by-placental-cell-lines
#10
Eliza Drwal, Agnieszka Rak, Adam Grochowalski, Tomasz Milewicz, Ewa Lucja Gregoraszczuk
In the preset study we measured the concentrations of 16 priority PAHs in maternal blood and placental tissue by using the GC-MS/MS system, and investigated the effects of selected PAHs (naphthalene, anthracene, phenanthrene, pyrene) and mixtures on BeWo and JEG-3 human placental cell line proliferation (Alamar Blue), cytotoxicity (3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide (XTT), lactate dehydrogenase (LDH), acid phosphatase (AP), endocrine activity (progesterone and estradiol secretion) and apoptosis (cyclin A1, cyclin D2, cdk 2, cdk 4, Bcl-xl, Bax, and caspase-3 protein expression)...
August 10, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/28803018/short-communication-molecular-characteristics-antimicrobial-susceptibility-and-pathogenicity-of-clinical-nocardia-cyriacigeorgica-isolates-from-an-outbreak-of-bovine-mastitis
#11
Wei Chen, Yongxia Liu, Herman W Barkema, Jian Gao, Jeroen De Buck, John P Kastelic, Gang Liu, Tariq Ali, Muhammad Shahid, Bo Han
The occurrence of nocardial mastitis, mostly in the context of outbreaks, has been reported in many countries. However, there is a paucity of reports regarding detailed characterization of Nocardia cyriacigeorgica from bovine mastitis. Thus, herein we report characteristics, antimicrobial susceptibility patterns, molecular identification, and pathogenicity of N. cyriacigeorgica isolated from an outbreak of clinical mastitis in a dairy herd in northern China. A total of 182 (80.2%) lactating cows had clinical mastitis with severe inflammation and firmness of the udder, reduced milk production, and anorexia, with no apparent clinical response to common antibiotics...
August 9, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28803009/involvement-of-plasma-adipokines-in-metabolic-and-reproductive-parameters-in-holstein-dairy-cows-fed-with-diets-with-differing-energy-levels
#12
N Mellouk, C Rame, J L Touzé, E Briant, L Ma, D Guillaume, D Lomet, A Caraty, T Ntallaris, P Humblot, J Dupont
This study aimed to investigate the association between plasma adipokine concentrations and metabolic and reproductive parameters in Holstein dairy cows fed diets with different energy levels during the peripartum period. The experiment started 1 mo before first calving and was maintained for 2 lactations. Dry matter intake and energy balance in animals fed a low-energy (LE) diet were significantly lower than that of animals fed a high-energy (HE) diet in the first lactation. Body weight, milk production, back fat thickness, and plasma concentrations of fatty acids, glucose, and insulin were not affected by diet, whereas plasma leptin and adiponectin concentrations were lower and plasma resistin concentrations higher in animals fed the LE diet...
August 9, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28802880/isobutanol-and-2-ketoisovalerate-production-by-klebsiella-pneumoniae-via-a-native-pathway
#13
Jinjie Gu, Jidong Zhou, Zhongxi Zhang, Chul Ho Kim, Biao Jiang, Jiping Shi, Jian Hao
Isobutanol is a valuable chemical and is considered a new generation biofuel. Construction of isobutanol synthesis pathways in bacteria is a hot topic in isobutanol production. Here, we show that an isobutanol synthesis pathway exists naturally in Klebsiella pneumoniae; however, this pathway is dormant in the wild-type bacterium. K. pneumoniae is a 2,3-butanediol producer, and the synthesis pathways of 2,3-butanediol, valine and isobutanol all start from condensation of two pyruvate molecules to yield α-acetolactate...
August 9, 2017: Metabolic Engineering
https://www.readbyqxmd.com/read/28802226/taraxerol-a-pentacyclic-triterpenoid-from-abroma-augusta-leaf-attenuates-diabetic-nephropathy-in-type-2-diabetic-rats
#14
Ritu Khanra, Niloy Bhattacharjee, Tarun K Dua, Ashis Nandy, Achintya Saha, Jatin Kalita, Prasenjit Manna, Saikat Dewanjee
Persistent hyperglycaemia coupled with inflammation plays an important role in the pathogenesis of diabetic nephropathy (DN). Present study examined the therapeutic potential of taraxerol isolated from the methanol extract of Abroma augusta leaf against DN using rodent model of type 2 diabetes (T2D). T2D was experimentally induced by high fat diet and a single low-single dose of streptozotocin (35mg/kg, i.p.). Accumulation of serum creatinine, urea, and uric acid, activation of lactate dehydrogenase and creatinin kinase, and release of urinary albumin represented the glomerular damage and the progression of nephropathy in T2D rats...
August 9, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28801775/plasticizers-and-bisphenol-a-in-packaged-foods-sold-in-the-tunisian-markets-study-of-their-acute-in-vivo-toxicity-and-their-environmental-fate
#15
Asma Beltifa, Anouar Feriani, Monia Machreki, Asma Ghorbel, Lakhdar Ghazouani, Giuseppa Di Bella, Joris Van Loco, Tim Reyns, Hedi Ben Mansour
Today, processed and packaged foods are considered as among the major sources of human exposure to plasticizers and bisphenol which migrate from plastic packing. In the present study, a wide range of food products sold on the Tunisian market such as grain and grain products, milk and dairy products, fats and oil, drink, fish, and sweets have been analyzed firstly in order to identify the presence of phthalates and bisphenol. Then, the identified chemical molecules were studied for their environmental fate and tested in vivo for its toxicity in mice models...
August 12, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28800908/stimulation-of-d-and-l-lactate-dehydrogenases-transcriptional-levels-in-presence%C3%A2-of-diammonium-hydrogen-phosphate-resulting-to-enhanced-lactic-acid%C3%A2-production-by-lactobacillus-strain
#16
Mamata Singhvi, Takeshi Zendo, Hiroshi Iida, Digambar Gokhale, Kenji Sonomoto
The present study revealed the effect of nitrogen sources on lactic acid production and stimulation of d- and l-lactate dehydrogenases (LDH) of parent Lactobacillus lactis NCIM 2368 and its mutant RM2-24 generated after UV mutagenesis. Both the parent and mutant strains were evaluated for d-lactic acid production in control and modified media. The modified media did not show remarkable effect on lactic acid production in case of parent whereas mutant exhibited significant enhancement in d-lactic acid production along with the appearance of l-lactic acid in the broth...
August 8, 2017: Journal of Bioscience and Bioengineering
https://www.readbyqxmd.com/read/28798983/role-of-aqp9-in-transport-of-monomethyselenic-acid-and-selenite
#17
Xiangrong Geng, Joseph McDermott, Joseph Lundgren, Liu Liu, Kan-Jen Tsai, Jian Shen, Zijuan Liu
AQP9 is an aquaglyceroporin with a very broad substrate spectrum. In addition to its orthodox nutrient substrates, AQP9 also transports multiple neutral and ionic arsenic species including arsenic trioxide, monomethylarsenous acid (MAs(III)) and dimethylarsenic acid (DMA(V)). Here we discovered a new group of AQP9 substrates which includes two clinical relevant selenium species. We showed that AQP9 efficiently transports monomethylselenic acid (MSeA) with a preference for acidic pH, which has been demonstrated in Xenopus laevis oocyte following the overexpression of human AQP9...
August 10, 2017: Biometals: An International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine
https://www.readbyqxmd.com/read/28798733/beef-chicken-and-soy-proteins-in-diets-induce-different-gut-microbiota-and-metabolites-in-rats
#18
Yingying Zhu, Xuebin Shi, Xisha Lin, Keping Ye, Xinglian Xu, Chunbao Li, Guanghong Zhou
Previous studies have paid much attention to the associations between high intake of meat and host health. Our previous study showed that the intake of meat proteins can maintain a more balanced composition of gut bacteria as compared to soy protein diet. However, the associations between dietary protein source, gut bacteria, and host health were still unclear. In this study, we collected colonic contents from the growing rats fed with casein, beef, chicken or soy proteins for 90 days, and analyzed the compositions of gut microbiota and metabolites...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28798692/change-in-the-lipid-transport-capacity-of-the-liver-and-blood-during-reproduction-in-rats
#19
Yufeng Zhang, Christine Kallenberg, Hayden W Hyatt, Andreas N Kavazis, Wendy R Hood
To support the high energetic demands of reproduction, female mammals display plasticity in many physiological processes, such as the lipid transport system. Lipids support the energy demands of females during reproduction, and energy and structural demands of the developing offspring via the placenta in utero or milk during the suckling period. We hypothesized that key proteins supporting lipid transport in reproductive females will increase during pregnancy and lactation, but drop to non-reproductive levels shortly after reproduction has ended...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28797310/maternal-intake-of-trans-unsaturated-or-interesterified-fatty-acids-during-pregnancy-and-lactation-modifies-mitochondrial-bioenergetics-in-the-liver-of-adult-offspring-in-mice
#20
Patricia C de Velasco, Gustavo Chicaybam, Dionizio M Ramos-Filho, Raísa M A R Dos Santos, Caroline Mairink, Fátima L C Sardinha, Tatiana El-Bacha, Antonio Galina, Maria das Graças Tavares-do-Carmo
The quality of dietary lipids in the maternal diet can programme the offspring to diseases in later life. We investigated whether the maternal intake of palm oil or interesterified fat, substitutes for trans-unsaturated fatty acids (FA), induces metabolic changes in the adult offspring. During pregnancy and lactation, C57BL/6 female mice received normolipidic diets containing partially hydrogenated vegetable fat rich in trans-unsaturated fatty acids (TG), palm oil (PG), interesterified fat (IG) or soyabean oil (CG)...
July 2017: British Journal of Nutrition
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