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https://www.readbyqxmd.com/read/28814833/markers-of-oxidative-nitrosative-stress-and-inflammation-in-lung-tissue-of-rats-exposed-to-different-intravenous-iron-compounds
#1
Jorge E Toblli, Gabriel Cao, Jorge F Giani, Fernando P Dominici, Margarita Angerosa
Iron deficiency anemia is a frequent complication in clinical conditions such as chronic kidney disease, chronic heart failure, inflammatory bowel disease, cancer, and excessive blood loss. Given the ability of iron to catalyze redox reactions, iron therapy can be associated with oxidative stress. The lung is uniquely susceptible to oxidative stress, and little is known about the effects of intravenous iron treatment in this organ. This study characterized changes in markers of oxidative/nitrosative stress and inflammation in the lung of non-iron deficient, non-anemic rats treated with five weekly doses (40 mg iron per kg body weight) of low molecular weight iron dextran (LMWID), iron sucrose (IS), ferric carboxymaltose (FCM), ferumoxytol (FMX), iron isomaltoside 1000 (IIM), or saline (control)...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/28814401/effects-of-protein-supplementation-combined-with-resistance-exercise-on-body-composition-and-physical-function-in-older-adults-a-systematic-review-and-meta-analysis
#2
Chun-De Liao, Jau-Yih Tsauo, Yen-Tzu Wu, Chin-Pao Cheng, Hui-Chuen Chen, Yi-Ching Huang, Hung-Chou Chen, Tsan-Hon Liou
Background: Overweight and obese older people face a high risk of muscle loss and impaired physical function, which may contribute to sarcopenic obesity. Resistance exercise training (RET) has a beneficial effect on muscle protein synthesis and can be augmented by protein supplementation (PS). However, whether body weight affects the augmentation of muscular and functional performance in response to PS in older people undergoing RET remains unclear.Objective: This study was conducted to identify the effects of PS on the body composition and physical function of older people undergoing RET...
August 16, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28811495/low-protein-induced-increases-in-fgf21-drive-ucp1-dependent-metabolic-but-not-thermoregulatory-endpoints
#3
Cristal M Hill, Thomas Laeger, Diana C Albarado, David H McDougal, Hans-Rudolf Berthoud, Heike Münzberg, Christopher D Morrison
Dietary protein restriction increases adipose tissue uncoupling protein 1 (UCP1), energy expenditure and food intake, and these effects require the metabolic hormone fibroblast growth factor 21 (FGF21). Here we test whether the induction of energy expenditure during protein restriction requires UCP1, promotes a resistance to cold stress, and is dependent on the concomitant hyperphagia. Wildtype, Ucp1-KO and Fgf21-KO mice were placed on control and low protein (LP) diets to assess changes in energy expenditure, food intake and other metabolic endpoints...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28803396/early-regression-of-carotid-intima-media-thickness-after-bariatric-surgery-and-its-relation-to-serum-leptin-reduction
#4
G Lambert, Marcelo Miranda de Oliveira Lima, A C Felici, J C Pareja, A C J Vasques, F S Novaes, S Rodovalho, F F P Hirsch, J R Matos-Souza, Élinton A Chaim, B Geloneze
PURPOSE: Bariatric surgery (BS) promotes carotid intima-media thickness (C-IMT) regression as early as 6 months post-surgery. To verify whether C-IMT regression occurs even earlier, we aimed at the effect of Roux-en-Y gastric bypass (RYGBP) and biliopancreatic diversion (BPD) on C-IMT 1-2 months and 12 months post-surgery. SUBJECTS/METHODS: Prospective trial. BS was performed on 109 patients either with (RYGBP = 42; BDP = 40) or without type 2 diabetes (RYGBP = 27)...
August 12, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28802290/postoperative-oral-nutritional-supplementation-after-major-gastrointestinal-surgery-a-randomized-controlled-clinical-trial
#5
Seong-Ho Kong, Jun Seok Park, In Kyu Lee, Seung-Wan Ryu, Young-Kyu Park, Han-Kwang Yang, Sang-Uk Han, Ki-Young Yoon, Seung-Yong Jeong, Mi Ran Jeong, Dae Wook Hwang, Yun-Suhk Suh, Yoo-Seok Yoon, Kyung Won Seo, Ji Won Park, Chul-Su Byun, Hoon Hur, Hojeong Won, Yunhee Choi, Hyuk-Joon Lee
BACKGROUND AND OBJECTIVES: This study aimed to evaluate the efficacy of post-operative oral nutrition supplementation after major gastrointestinal surgery. METHODS AND STUDY DESIGN: A prospective randomized controlled trial was conducted to evaluate 174 subjects who were discharged within 2 weeks after major gastrointestinal surgery. The subjects in the study group were prescribed 400 ml/day of Encover® from the day of discharge for 8 weeks, but no supplementation was allowed in the control group...
2017: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28800398/a-13-week-randomized-pilot-trial-of-a-low-glycemic-load-diet-and-lifestyle-modification-program-combining-low-glycemic-load-protein-shakes-and-targeted-nutraceuticals-improved-weight-loss-and-cardio-metabolic-risk-factors-over-a-low-glycemic-load-diet-alone
#6
Clinton J Dahlberg, Joseph J Ou, John G Babish, Joseph J Lamb, Sarah Eliason, Holly Brabazon, Wei Gao, Mohan R Kaadige, Matthew L Tripp
An open label, randomized, exploratory study comprising 44 healthy, overweight subjects with cardio-metabolic syndrome (CMS) risk factors was conducted to assess the safety, tolerability and efficacy of a proprietary lifestyle modification program without (DIET) and with (PROG) targeted nutraceutical supplementation including soy, pea and whey proteins, phytosterols, antioxidants, probiotics, fish oil and berberine over 13-weeks. Key metrics were recorded at baseline, weeks 9 and 13. For DIET and PROG compliance was 85% and 86%, respectively, with no adverse events related to the diet or supplements...
August 11, 2017: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/28799638/ftir-characterization-and-release-of-bovine-serum-albumin-from-bioactive-glasses
#7
Wai-Ching Liu, Blake Ballenger, Amnah Algarni, Mariano Velez, Tien-Min G Chu
BACKGROUND: Bioactive glass has attracted substantial interest in orthopedics, but it has been less explored as a drug carrier. This study investigated the bovine serum albumin (BSA) release from bioactive 13-93B0 and 13-93B3 glasses. METHODS: Glass disks (13-93B0 and 13-93B3; n = 5) were loaded with 4 mg of BSA and coated under different chitosan-coating conditions. The amount of BSA released in phosphate-buffered saline (PBS) was evaluated, and a degradation study was performed to find out the weight loss and pH of PBS...
August 7, 2017: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/28796827/impact-of-ghrelin-on-body-composition-and-muscle-function-in-a-long-term-rodent-model-of-critical-illness
#8
Neil E Hill, Kevin G Murphy, Saima Saeed, Rahul Phadke, Darren Chambers, Duncan R Wilson, Stephen J Brett, Mervyn Singer
BACKGROUND: Patients with multiple injuries or sepsis requiring intensive care treatment invariably develop a catabolic state with resultant loss of lean body mass, for which there are currently no effective treatments. Recovery can take months and mortality is high. We hypothesise that treatment with the orexigenic and anti-inflammatory gastric hormone, ghrelin may attenuate the loss of body mass following critical illness and improve recovery. METHODS: Male Wistar rats received an intraperitoneal injection of the fungal cell wall derivative zymosan to induce a prolonged peritonitis and consequent critical illness...
2017: PloS One
https://www.readbyqxmd.com/read/28795281/selective-a2a-receptor-antagonist-sch-58261-modulates-striatal-oxidative-stress-and-alleviates-toxicity-induced-by-3-nitropropionic-acid-in-male-wistar-rats
#9
Cristiani F Bortolatto, Angélica S Reis, Mikaela P Pinz, Guilherme T Voss, Renata L Oliveira, Ane G Vogt, Silvane Roman, Cristiano R Jesse, Cristiane Luchese, Ethel A Wilhelm
The aim of the present study was to investigate the effects of SCH58261, a selective adenosine A2A receptor antagonist, on striatal toxicity induced by 3-nitropropionic acid (3-NP) in rats. The experimental protocol consisted of 10 administrations (once a day) of SCH58261 (0.01 or 0.05 mg/kg/day, intraperitoneal, i.p.). From 7th to 10th day, 3-NP (20 mg/kg/day, i.p.) was injected 1 h after SCH58261 administration. Twenty-four hours after the last 3-NP injection, the body weight gain, locomotor activity (open-field test), motor coordination (rotarod test), striatal succinate dehydrogenase (SDH) activity and parameters linked to striatal oxidative status were evaluated in rats...
August 9, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28793219/stiff-substrates-increase-inflammation-induced-endothelial-monolayer-tension-and-permeability
#10
Rebecca Lownes Urbano, Christina Furia, Sarah Basehore, Alisa Morss Clyne
Arterial stiffness and inflammation are associated with atherosclerosis, and each have individually been shown to increase endothelial monolayer tension and permeability. The objective of this study was to determine if substrate stiffness enhanced endothelial monolayer tension and permeability in response to inflammatory cytokines. Porcine aortic endothelial cells were cultured at confluence on polyacrylamide gels of varying stiffness and treated with either tumor necrosis factor-α (TNFα) or thrombin. Monolayer tension was measured through vinculin localization at the cell membrane, traction force microscopy, and phosphorylated myosin light chain quantity and actin fiber colocalization...
August 8, 2017: Biophysical Journal
https://www.readbyqxmd.com/read/28792489/l-phenylalanine-modulates-gut-hormone-release-and-glucose-tolerance-and-suppresses-food-intake-through-the-calcium-sensing-receptor-in-rodents
#11
A Alamshah, E Spreckley, M Norton, J S Kinsey-Jones, A Amin, A Ramgulam, Y Cao, R Johnson, K Saleh, E Akalestou, Z Malik, N Gonzalez-Abuin, A Jomard, R Amarsi, A Moolla, P R Sargent, G W Gray, S R Bloom, K G Murphy
OBJECTIVE: High-protein diets (HPDs) are associated with greater satiety and weight loss than diets rich in other macronutrients. The exact mechanisms by which HPDs exert their effects are unclear. However, evidence suggests that the sensing of amino acids produced as a result of protein digestion may have a role in appetite regulation and satiety. We investigated the effects of l-phenylalanine (L-Phe) on food intake and glucose homeostasis in rodents. METHODS: We investigated the effects of the aromatic amino-acid and calcium-sensing receptor (CaSR) agonist l-phenylalanine (L-Phe) on food intake and the release of the gastrointestinal (GI) hormones peptide YY (PYY), glucagon-like peptide-1 (GLP-1) and ghrelin in rodents, and the role of the CaSR in mediating these effects in vitro and in vivo...
July 13, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28791438/vps52-induces-apoptosis-via-cathepsin-d-in-gastric-cancer
#12
Jian Zhang, Ying Lin, Xichun Hu, Zheng Wu, Weijian Guo
Vacuolar protein sorting (VPS) genes encode a class of proteins involved in vesicular trafficking. Growing evidence suggests that VPS proteins play roles in tumor biology. Vacuolar protein sorting 52 (VPS52) is involved in retrograde transport of endosomes, and its roles in cancers have not been explored. This study investigated the genetic alterations, protein changes, biological role, and molecular mechanism of VPS52 in gastric cancer. Loss of heterozygosity of VPS52 was detected in 52.9% (9/17) of gastric cancer samples...
August 8, 2017: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/28790922/exercise-preserves-lean-mass-and-performance-during-severe-energy-deficit-the-role-of-exercise-volume-and-dietary-protein-content
#13
Jose A L Calbet, Jesús G Ponce-González, Jaime de La Calle-Herrero, Ismael Perez-Suarez, Marcos Martin-Rincon, Alfredo Santana, David Morales-Alamo, Hans-Christer Holmberg
The loss of fat-free mass (FFM) caused by very-low-calorie diets (VLCD) can be attenuated by exercise. The aim of this study was to determine the role played by exercise and dietary protein content in preserving the lean mass and performance of exercised and non-exercised muscles, during a short period of extreme energy deficit (~23 MJ deficit/day). Fifteen overweight men underwent three consecutive experimental phases: baseline assessment (PRE), followed by 4 days of caloric restriction and exercise (CRE) and then 3 days on a control diet combined with reduced exercise (CD)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28790180/pseudomonas-aeruginosa-lasb-protease-impairs-innate-immunity-in-mice-and-humans-by-targeting-a-lung-epithelial-cystic-fibrosis-transmembrane-regulator-il-6-antimicrobial-repair-pathway
#14
Vinciane Saint-Criq, Bérengère Villeret, Fabien Bastaert, Saadé Kheir, Aurélie Hatton, Aurélie Cazes, Zhou Xing, Isabelle Sermet-Gaudelus, Ignacio Garcia-Verdugo, Aleksander Edelman, Jean-Michel Sallenave
BACKGROUND: Pseudomonas aeruginosa lung infections are a huge problem in ventilator-associated pneumonia, cystic fibrosis (CF) and in chronic obstructive pulmonary disease (COPD) exacerbations. This bacterium secretes virulence factors that may subvert host innate immunity. OBJECTIVE: We evaluated the effect of P. aeruginosa elastase LasB, an important virulence factor secreted by the type II secretion system, on ion transport, innate immune responses and epithelial repair, both in vitro and in vivo...
August 8, 2017: Thorax
https://www.readbyqxmd.com/read/28783736/glutamate-alleviates-muscle-protein-loss-by-modulating-tlr4-nods-akt-foxo-and-mtor-signaling-pathways-in-lps-challenged-piglets
#15
Ping Kang, Xiuying Wang, Huanting Wu, Huiling Zhu, Yongqing Hou, Longmei Wang, Yulan Liu
The experiment was conducted to study the effect of the glutamate (Glu) on muscle protein loss through toll-like receptor 4 (TLR4), nucleotide-binding oligomerization domain proteins (NODs), Akt/Forkhead Box O (Akt/FOXO) and mammalian target of rapamycin (mTOR) signaling pathways in LPS-challenged piglets. Twenty-four weaned piglets were assigned into four treatments: (1) Control; (2) LPS+0% Glu; (3) LPS + 1.0% Glu; (4) LPS + 2.0% Glu. The experiment was lasted for 28 days. On d 28, the piglets in the LPS challenged groups were injected with LPS on 100 μg/kg body weight (BW), and the piglets in the control group were injected with the same volume of 0...
2017: PloS One
https://www.readbyqxmd.com/read/28777921/minimal-alteration-in-muscle-lipid-genes-following-stabilized-weight-loss
#16
Robert H Coker, Leizleigh Robinette, Philip A Kern
PURPOSE: Variations in skeletal muscle peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC-1∝), carntine palmitoyltransferase (CPT-1), perilipin protein (PLIN2), and adipose tissue triglyceride lipase (ATGL), and comparative gene identification-58 (CGI-58) have been described to play important roles in the metabolic regulation of lipid oxidation, and may influence intramyocellular lipid (IMCL) and muscle lipid droplet size (LDS). While acute changes in caloric balance and/or aerobic capacity may affect lipid metabolism, the influence of sustained weight loss derived from caloric restriction (CWL) compared to exercise training (EWL) on the above mentioned parameters has not been fully elucidated...
August 4, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28776570/non-canonical-regulation-of-spl-transcription-factors-by-a-human-otub1-like-deubiquitinase-defines-a-new-plant-type-rice-associated-with-higher-grain-yield
#17
Shuansuo Wang, Kun Wu, Qian Qian, Qian Liu, Qi Li, Yajun Pan, Yafeng Ye, Xueying Liu, Jing Wang, Jianqing Zhang, Shan Li, Yuejin Wu, Xiangdong Fu
Achieving increased grain productivity has long been the overriding focus of cereal breeding programs. The ideotype approach has been used to improve rice yield potential at the International Rice Research Institute and in China. However, the genetic basis of yield-related traits in rice remains unclear. Here, we show that a major quantitative trait locus, qNPT1, acts through the determination of a 'new plant type' (NPT) architecture characterized by fewer tillers, sturdier culms and larger panicles, and it encodes a deubiquitinating enzyme with homology to human OTUB1...
August 4, 2017: Cell Research
https://www.readbyqxmd.com/read/28775379/tia1-is-a-gender-specific-disease-modifier-of-a-mild-mouse-model-of-spinal-muscular-atrophy
#18
Matthew D Howell, Eric W Ottesen, Natalia N Singh, Rachel L Anderson, Joonbae Seo, Senthilkumar Sivanesan, Elizabeth M Whitley, Ravindra N Singh
Spinal muscular atrophy (SMA) is caused by deletions or mutations of Survival Motor Neuron 1 (SMN1) gene. The nearly identical SMN2 cannot compensate for SMN1 loss due to exon 7 skipping. The allele C (C (+/+)) mouse recapitulates a mild SMA-like phenotype and offers an ideal system to monitor the role of disease-modifying factors over a long time. T-cell-restricted intracellular antigen 1 (TIA1) regulates SMN exon 7 splicing. TIA1 is reported to be downregulated in obese patients, although it is not known if the effect is gender-specific...
August 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28771063/reliability-of-urinary-dehydration-markers-among-elite-youth-boxers
#19
Damir Zubac, Drazen Cular, Uros Marusic
PURPOSE: The aim of the present study was to determine the reliability and diagnostic accuracy of non-invasive urinary dehydration markers, in field-based settings on a day-to-day basis in elite adolescent amateur boxers. METHODS: Sixty-nine urine samples were collected on a day-to-day basis, from twenty-three athletes (17.3±1.9 y), during their weigh-stable phase and analyzed by field and laboratory measures of hydration status. Urine osmolality (UOSM), urine specific gravity (USG), total protein content (TPC) and body-mass (BM) stability were evaluated to determine fluid balance and hydration status...
August 3, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28768654/effect-of-the-interaction-between-diet-composition-and-the-ppm1k-genetic-variant-on-insulin-resistance-and-%C3%AE-cell-function-markers-during-weight-loss-results-from-the-nutrient-gene-interactions-in-human-obesity-implications-for-dietary-guidelines-nugenob-randomized
#20
Leticia Goni, Lu Qi, Marta Cuervo, Fermín I Milagro, Wim H Saris, Ian A MacDonald, Dominique Langin, Arne Astrup, Peter Arner, Jean-Michel Oppert, Mathilde Svendstrup, Ellen E Blaak, Thorkild Ia Sørensen, Torben Hansen, J Alfredo Martínez
Background: Circulating branched-chain amino acids (BCAAs) and aromatic amino acids (AAAs) have been shown to be associated with insulin resistance and diabetes risk. The common rs1440581 T allele in the protein phosphatase Mg2+/Mn2+ dependent 1K (PPM1K) gene has been related to elevated BCAA concentrations and risk of type 2 diabetes.Objective: In the present study, we tested whether dietary fat and carbohydrate intakes influenced the association between the rs1440581 PPM1K genetic variant and glucose-metabolism traits during weight loss...
August 2, 2017: American Journal of Clinical Nutrition
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