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https://www.readbyqxmd.com/read/28524020/altered-gene-expression-of-epigenetic-modifying-enzymes-in-response-to-dietary-supplementation-with-linseed-oil
#1
Ran Li, Eveline M Ibeagha-Awemu
Recently we showed that 5% linseed oil (LSO) and 5% safflower oil (SFO) supplementation of cow's diets reduced milk fat yield by 30·38 and 32·42% respectively, accompanied by differential expression of genes and regulation by microRNAs (miRNA). This research communication addresses the hypothesis that epigenetic regulation could be involved in the observed milk fat reduction. Thus, this study investigated the gene expression pattern of major epigenetic modifying enzymes in response to dietary supplementation with LSO or SFO...
May 2017: Journal of Dairy Research
https://www.readbyqxmd.com/read/28524013/probiotic-supplementation-effects-on-milk-fatty-acid-profile-in-ewes
#2
Shahab Payandeh, Farokh Kafilzadeh, Manuela Juárez, Miguel Angel de la Fuente, Darab Ghadimi, Andrés L Martínez Marín
We hypothesised that probiotic feeding would alter the fatty acid (FA) profile of sheep's milk. Sixteen lactating ewes, kept under the same feeding and management practices, were randomly allocated to receive either a control diet or the same diet supplemented with a commercial multi-strain bacterial probiotic. Milk fat FA contents were monitored fortnightly for eight consecutive weeks from 14 d after lambing. Probiotic supplementation increased the contents of butyric and caproic acids in milk fat and had no negative effects on other relevant FA from the human's health point of view (i...
May 2017: Journal of Dairy Research
https://www.readbyqxmd.com/read/28523564/prenatal-and-early-postnatal-environmental-enrichment-reduce-acute-cell-death-and-prevent-neurodevelopment-and-memory-impairments-in-rats-submitted-to-neonatal-hypoxia-ischemia
#3
L E Durán-Carabali, D M Arcego, F K Odorcyk, L Reichert, J L Cordeiro, E F Sanches, L D Freitas, C Dalmaz, A Pagnussat, C A Netto
Environmental enrichment (EE) is an experimental strategy to attenuate the negative effects of different neurological conditions including neonatal hypoxia ischemia encephalopathy (HIE). The aim of the present study was to investigate the influence of prenatal and early postnatal EE in animals submitted to neonatal HIE model at postnatal day (PND) 3. Wistar rats were housed in EE or standard conditions (SC) during pregnancy and lactation periods. Pups of both sexes were assigned to one of four experimental groups, considering the early environmental conditions and the injury: SC-Sham, SC-HIE, EE-sham, and EE-HIE...
May 18, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28522995/dysbiosis-of-intestinal-microbiota-and-decreased-antimicrobial-peptide-level-in-paneth-cells-during-hypertriglyceridemia-related-acute-necrotizing-pancreatitis-in-rats
#4
Chunlan Huang, Jing Chen, Jingjing Wang, Hui Zhou, Yingying Lu, Lihong Lou, Junyuan Zheng, Ling Tian, Xingpeng Wang, Zhongwei Cao, Yue Zeng
Hypertriglyceridemia (HTG) aggravates the course of acute pancreatitis (AP). Intestinal barrier dysfunction is implicated in the pathogenesis of AP during which dysbiosis of intestinal microbiota contributes to the dysfunction in intestinal barrier. However, few studies focus on the changes in intestine during HTG-related acute necrotizing pancreatitis (ANP). Here, we investigated the changes in intestinal microbiota and Paneth cell antimicrobial peptides (AMPs) in HTG-related ANP (HANP) in rats. Rats fed a high-fat diet to induce HTG and ANP was induced by retrograde injection of 3...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28522214/p2-purinergic-receptor-antagonists-disrupt-maternal-behavior-in-lactating-rats
#5
Luciana C Teodoro, Layla D M Cabral, Fabiana C Vilela, Alexandre Giusti-Paiva
The involvement of purinergic signaling in several brain functions has been recognized, but the modulation on maternal behavior by the purinergic system is not established, even though there are functional interactions between the purinergic and oxytocinergic systems. Therefore, the aim of our study was to investigate whether central administration of P2 receptor antagonists affected the maternal behavior of lactating rats and c-Fos immunoreactivity in the forebrain. On day 7 of lactation, female rats were treated with vehicle (5μL; i...
May 15, 2017: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/28522001/cytotoxic-effect-of-a-mannogalactoglucan-extracted-from-agaricus-bisporus-on-hepg2-cells
#6
Amanda do Rocio Andrade Pires, Andrea Caroline Ruthes, Silvia Maria Suter Correia Cadena, Marcello Iacomini
A mannogalactoglucan (RK2-Ab; Mw 1.8×10(4)gmol(-1)) composed by Man (27.3%), Gal (24.4%) and Glc (48.3%) was extracted and characterized from Agaricus bisporus, and its biological activity was evaluated on human hepatocarcinoma cells (HepG2). The partially-O-methylated alditol acetates together with the NMR data suggest the main chain to be composed of α-d-Galp (32.8%) and β-d-Glcp (37.0%) units (1→6)-linked, with β-d-Manp (14.6%), as non-reducing end units, substituting the side chains at O-2 (α-d-Galp units; 3...
August 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28521971/comparison-of-early-sequential-hypothermia-and-delayed-hypothermia-on-neurological-function-after-resuscitation-in-a-swine-model
#7
Wei Yuan, Jun-Yuan Wu, Yong-Zhen Zhao, Jie Li, Jie-Bin Li, Zhen-Hua Li, Chun-Sheng Li
BACKGROUND: We utilized a porcine cardiac arrest model to compare early sequential hypothermia (ESH) with delayed hypothermia (DH) and no hypothermia (NH) to investigate the different effects on cerebral function after resuscitation. METHODS: After return of spontaneous circulation (ROSC), resuscitated 24 pigs divided into three groups. The ESH group implemented early sequential hypothermia immediately, and the DH group implemented delayed hypothermia at 1 h after ROSC...
May 11, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28521523/sepsis-in-internal-medicine-wards-current-knowledge-uncertainties-and-new-approaches-for-management-optimization
#8
Vincenzo Zaccone, Alberto Tosoni, Giovanna Passaro, Carla Vallone, Michele Impagnatiello, Domenica Donatella Li Puma, Salvatore De Cosmo, Raffaele Landolfi, Antonio Mirijello
Sepsis represents a global health problem in terms of morbidity, mortality, social and economic costs. Although usually managed in Intensive Care Units, sepsis showed an increased prevalence among Internal Medicine wards in the last decade. This is substantially due to the ageing of population and to multi-morbidity. These characteristics represent both a risk factor for sepsis and a relative contra-indication for the admission to Intensive Care Units. Although there is a lack of literature on the management of sepsis in Internal Medicine, the outcome of these patients seems to be gradually improving...
May 18, 2017: Annals of Medicine
https://www.readbyqxmd.com/read/28521061/extracellular-camp-activates-molecular-signalling-pathways-associated-with-sperm-capacitation-in-bovines
#9
Carlos Agustín I Alonso, Claudia E Osycka-Salut, Luciana Castellano, Andreína Cesari, Nicolás Di Siervi, Adrián Mutto, Anders Johannisson, Jane M Morrell, Carlos Davio, Silvina Perez-Martinez
STUDY QUESTION: Is extracellular cAMP involved in the regulation of signalling pathways in bovine sperm capacitation? SUMMARY ANSWER: Extracellular cAMP-induced sperm capacitation through the activation of different signalling pathways that involve phospholipase C (PLC), PKC/ERK1-2 signalling and an increase in sperm Ca2+ levels, as well as soluble AC and cAMP/protein kinase A (PKA) signalling. WHAT IS KNOWN ALREADY: In order to fertilize the oocyte, ejaculated spermatozoa must undergo a series of changes in the female reproductive tract, known as capacitation...
May 18, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28515655/effect-of-calcium-lactate-on-physico-chemical-characteristics-of-shank-bone-extract
#10
Jung-Seok Choi, Sang-Keun Jin, Yeong-Seok Choi, Jin-Kyu Lee, Ji-Taek Jung, Yang-Il Choi, Hyun-Joo Lee, Jae-Joon Lee
This study was conducted to develop calcium-fortified shank bone extract (SBE) and to determine the effect of adding calcium lactate on physico-chemical characteristics of SBE during cold storage. The following five experiment groups were used: Control (0%, no addition), T1 (0.05% calcium lactate), T2 (0.1% calcium lactate), T3 (0.5% calcium lactate), and T4 (1% calcium lactate). When the concentration of calcium lactate added to the SBE was increased, the pH, redness, and yellowness values were significantly reduced, whereas the salinity, sugar content, and turbidity of SBE were significantly increased...
2017: Korean Journal for Food Science of Animal Resources
https://www.readbyqxmd.com/read/28515312/astrocytic-glycogen-derived-lactate-fuels-the-brain-during-exhaustive-exercise-to-maintain-endurance-capacity
#11
Takashi Matsui, Hideki Omuro, Yu-Fan Liu, Mariko Soya, Takeru Shima, Bruce S McEwen, Hideaki Soya
Brain glycogen stored in astrocytes provides lactate as an energy source to neurons through monocarboxylate transporters (MCTs) to maintain neuronal functions such as hippocampus-regulated memory formation. Although prolonged exhaustive exercise decreases brain glycogen, the role of this decrease and lactate transport in the exercising brain remains less clear. Because muscle glycogen fuels exercising muscles, we hypothesized that astrocytic glycogen plays an energetic role in the prolonged-exercising brain to maintain endurance capacity through lactate transport...
May 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28515149/pyruvate-kinase-inhibits-proliferation-during-postnatal-cerebellar-neurogenesis-and-suppresses-medulloblastoma-formation
#12
Katherine Tech, Andrey P Tikunov, Hamza Farooq, A Sorana Morrissy, Jessica Meidinger, Taylor Fish, Sarah C Green, Hedi Liu, Yisu Li, Andrew J Mungall, Richard A Moore, Yussanne Ma, Steven Jm Jones, Marco A Marra, Matthew G Vander Heiden, Michael D Taylor, Jeffrey MacDonald, Timothy R Gershon
Aerobic glycolysis supports proliferation through unresolved mechanisms. We have previously shown that aerobic glycolysis is required for the regulated proliferation of cerebellar granule neuron progenitors (CGNPs), and for the growth of CGNP-derived medulloblastoma. Blocking the initiation of glycolysis via deletion of Hexokinase-2 (Hk2) disrupts CGNP proliferation and restricts medulloblastoma growth. Here, we assessed whether disrupting Pyruvate kinase-M (Pkm), an enzyme that acts in the terminal steps of glycolysis, would alter CGNP metabolism, proliferation and tumorigenesis...
May 17, 2017: Cancer Research
https://www.readbyqxmd.com/read/28514978/jugular-infused-methionine-lysine-and-branched-chain-amino-acids-does-not-improve-milk-production-in-holstein-cows-experiencing-heat-stress
#13
K R Kassube, J D Kaufman, K G Pohler, J W McFadden, A G Ríus
Poor utilization of amino acids contributes to losses of milk protein yield in dairy cows exposed to heat stress (HS). Our objective was to test the effect of essential amino acids on milk production in lactating dairy cows exposed to short-term HS conditions. To achieve this objective, 12 multiparous, lactating Holstein cows were assigned to two environments (thermoneutral (THN) or HS) from days 1 to 14 in a split-plot type cross-over design. All cows received 0 g/day of essential amino acids from days 1 to 7 (negative control (NC)) followed by an intravenous infusion of l-methionine (12 g/day), l-lysine (21 g/day), l-leucine (35 g/day), l-isoleucine (15 g/day) and l-valine (15 g/day, methionine, lysine and branched-chain amino acids (ML+BCAA)) from days 8 to 14...
May 18, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28514652/thymidine-catabolism-as-a-metabolic-strategy-for-cancer-survival
#14
Sho Tabata, Masatatsu Yamamoto, Hisatsugu Goto, Akiyoshi Hirayama, Maki Ohishi, Takuya Kuramoto, Atsushi Mitsuhashi, Ryuji Ikeda, Misako Haraguchi, Kohichi Kawahara, Yoshinari Shinsato, Kentaro Minami, Atsuro Saijo, Masaki Hanibuchi, Yasuhiko Nishioka, Saburo Sone, Hiroyasu Esumi, Masaru Tomita, Tomoyoshi Soga, Tatsuhiko Furukawa, Shin-Ichi Akiyama
Thymidine phosphorylase (TP), a rate-limiting enzyme in thymidine catabolism, plays a pivotal role in tumor progression; however, the mechanisms underlying this role are not fully understood. Here, we found that TP-mediated thymidine catabolism could supply the carbon source in the glycolytic pathway and thus contribute to cell survival under conditions of nutrient deprivation. In TP-expressing cells, thymidine was converted to metabolites, including glucose 6-phosphate, lactate, 5-phospho-α-D-ribose 1-diphosphate, and serine, via the glycolytic pathway both in vitro and in vivo...
May 16, 2017: Cell Reports
https://www.readbyqxmd.com/read/28514310/development-and-validation-of-a-mortality-risk-model-for-pediatric-sepsis
#15
Mengshi Chen, Xiulan Lu, Li Hu, Pingping Liu, Wenjiao Zhao, Haipeng Yan, Liang Tang, Yimin Zhu, Zhenghui Xiao, Lizhang Chen, Hongzhuan Tan
Pediatric sepsis is a burdensome public health problem. Assessing the mortality risk of pediatric sepsis patients, offering effective treatment guidance, and improving prognosis to reduce mortality rates, are crucial.We extracted data derived from electronic medical records of pediatric sepsis patients that were collected during the first 24 hours after admission to the pediatric intensive care unit (PICU) of the Hunan Children's hospital from January 2012 to June 2014. A total of 788 children were randomly divided into a training (592, 75%) and validation group (196, 25%)...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28512002/cell-surface-g-protein-coupled-receptors-for-tumor-associated-metabolites-a-direct-link-to-mitochondrial-dysfunction-in-cancer
#16
REVIEW
Bojana Ristic, Yangzom D Bhutia, Vadivel Ganapathy
Mitochondria are the sites of pyruvate oxidation, citric acid cycle, oxidative phosphorylation, ketogenesis, and fatty acid oxidation. Attenuation of mitochondrial function is one of the most significant changes that occurs in tumor cells, directly linked to oncogenesis, angiogenesis, Warburg effect, and epigenetics. In particular, three mitochondrial enzymes are inactivated in cancer: pyruvate dehydrogenase (PDH), succinate dehydrogenase (SDH), and 3-hydroxy-3-methylglutaryl CoA synthase-2 (HMGCS2). These enzymes are subject to regulation via acetylation/deacetylation...
May 13, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28511903/novel-role-of-the-nutraceutical-bioactive-compound-berberine-in-lectin-like-oxldl-receptor-1-mediated-endothelial-dysfunction-in-comparison-to-lovastatin
#17
C Caliceti, P Rizzo, R Ferrari, F Fortini, G Aquila, E Leoncini, L Zambonin, B Rizzo, D Calabria, P Simoni, M Mirasoli, M Guardigli, S Hrelia, A Roda, A F G Cicero
BACKGROUND AND AIMS: Oxidized LDL (oxLDL) or pro-inflammatory stimuli lead to increased oxidative stress linked to endothelial dysfunction and atherosclerosis. The oxLDL receptor-1 (LOX1) is elevated within atheromas and cholesterol-lowering statins inhibit LOX1 expression. Berberine (BBR), an alkaloid extracted from plants of gender Berberis, has lipid-lowering and anti-inflammatory activity. However, its role in regulating LOX1-mediated signaling is still unknown. The aim of this study was to investigate the effect of BBR on oxLDL- and TNFα-induced endothelial dysfunction in human umbilical vein endothelial cells (HUVECs) and to compare it with that of lovastatin (LOVA)...
April 19, 2017: Nutrition, Metabolism, and Cardiovascular Diseases: NMCD
https://www.readbyqxmd.com/read/28510297/evaluation-of-the-safety-of-drugs-and-biological-products-used-during-lactation-workshop-summary
#18
REVIEW
J Wang, T Johnson, L Sahin, M S Tassinari, P O Anderson, T E Baker, C Bucci-Rechtweg, G J Burckart, C D Chambers, T W Hale, D Johnson-Lyles, R M Nelson, C Nguyen, D Pica-Branco, Z Ren, H Sachs, J Sauberan, A Zajicek, S Ito, L P Yao
This report serves as a summary of a 2-day public workshop sponsored by the US Food and Drug Administration (FDA) to discuss the safety of drugs and biological products used during lactation. The aim of the workshop was to provide a forum to discuss the collection of data to inform the potential risks to breastfed infants with maternal use of medications during lactation. Discussions included the review of current approaches to collect data on medications used during lactation, and the considerations for future approaches to design and guide clinical lactation studies...
June 2017: Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28503821/effects-of-continuous-low-dose-infusion-of-lipopolysaccharide-on-inflammatory-responses-milk-production-and-milk-quality-in-dairy-cows
#19
L T Ning, G Z Dong, C Ao, D G Zhang, K Erdene, F Q Zhang, J Wen, T L Zhang
The objective of this study was to evaluate the effects of continuous low dose infusion of lipopolysaccharide (LPS) on inflammatory responses and milk production and quality in lactating dairy cows. Eight Holstein cows were assigned to two treatments in a cross-over experimental design. Cows were infused intravenously either with saline solution or with saline solution containing LPS from Escherichia coli O111:B4 at a dose of 0.01 μg LPS/kg body weight for approximately 6 hr each day during a seven-day trial...
May 15, 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/28501762/poorly-differentiated-gastro-entero-pancreatic-neuroendocrine-carcinomas-are-they-really-heterogeneous-insights-from-the-ffcd-gte-national-cohort
#20
T Walter, D Tougeron, E Baudin, K Le Malicot, T Lecomte, D Malka, O Hentic, S Manfredi, I Bonnet, R Guimbaud, R Coriat, C Lepère, C Desauw, A Thirot-Bidault, L Dahan, G Roquin, T Aparicio, J-L Legoux, C Lombard-Bohas, J-Y Scoazec, C Lepage, G Cadiot
BACKGROUND: Diagnosis and management of poorly differentiated gastro-entero-pancreatic (GEP) neuroendocrine carcinomas (NECs) remain challenging. Recent studies suggest prognostic heterogeneity. We designed within the French Group of Endocrine Tumours a prospective cohort to gain insight in the prognostic stratification and treatment of GEP-NEC. PATIENTS AND METHODS: All patients with a diagnosis of GEP-NEC between 1st January 2010 and 31st December 2013 could be included in this national cohort...
May 11, 2017: European Journal of Cancer
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