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Amino acid supplementation

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https://www.readbyqxmd.com/read/29141471/dietary-chlorogenic-acid-regulates-gut-microbiota-serum-free-amino-acids-and-colonic-serotonin-levels-in-growing-pigs
#1
Yi Wu, Wenhui Liu, Qi Li, Yafei Li, Yali Yan, Fang Huang, Xin Wu, Quancheng Zhou, Xugang Shu, Zheng Ruan
Chlorogenic acid (CGA) has many biological properties, including antibacterial, antioxidant and anti-inflammatory properties, and is one of the most abundant phenolic acids available in the human diet. The aim of this study was to investigate the effects of CGA on regulation of the gut microbiota, and on the levels of free amino acids and 5-hydroxytryptamine (5-HT, serotonin). Ninety-six healthy growing pigs were randomly assigned to two treatment groups: the Ctrl group (control group, standard feed) and the CGA group [standard feed plus 0...
November 15, 2017: International Journal of Food Sciences and Nutrition
https://www.readbyqxmd.com/read/29140140/the-physiological-mechanisms-of-effect-of-vitamins-and-amino-acids-on-tendon-and-muscle-healing-a-systematic-review
#2
Christopher Tack, Faye Shorthouse, Lindsy Kass
AIMS/OBJECTIVES: To evaluate current literature via systematic review to ascertain whether amino acids/ vitamins provide any influence on musculotendinous healing, and by which physiological mechanisms Methods: EBSCO, PUBMED, Science Direct, Embase Classic/ Embase, and MEDLINE were searched using terms including "vitamins", "amino acids", "healing", "muscle" and "tendon". The primary search had 479 citations, 466 of which were excluded predominantly due to non-randomised design. Randomised human and animal studies investigating all supplement types/ forms of administration were included...
November 15, 2017: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/29136220/interactions-of-dietary-protein-and-threonine-on-growth-performance-in-pekin-ducklings-from-1-to-14-days-of-age
#3
Y Jiang, Y W Zhu, M Xie, J Tang, Z G Wen, S Y Qiao, S S Hou
The present study was conducted to investigate the effects of dietary crude protein (CP) on threonine requirements by determining the interactions of dietary CP levels (16.0, 17.5, 19.0, 20.5, and 22.0%) and supplemental threonine levels (0, 0.07, 0.14, 0.21, and 0.28%) on growth performance of Pekin ducks from 1 to 14 days of age. A total of 1,200 one-day-old male Pekin ducks was randomly allotted to 1 of 25 dietary treatments with 6 replicate pens of 8 birds per pen for each treatment. The results showed that dietary CP and threonine levels affected the average daily feed intake (ADFI, P < 0...
November 9, 2017: Poultry Science
https://www.readbyqxmd.com/read/29132292/flps-fast-discovery-of-compositional-biases-for-the-protein-universe
#4
Paul M Harrison
BACKGROUND: Proteins often contain regions that are compositionally biased (CB), i.e., they are made from a small subset of amino-acid residue types. These CB regions can be functionally important, e.g., the prion-forming and prion-like regions that are rich in asparagine and glutamine residues. RESULTS: Here I report a new program fLPS that can rapidly annotate CB regions. It discovers both single-residue and multiple-residue biases. It works through a process of probability minimization...
November 13, 2017: BMC Bioinformatics
https://www.readbyqxmd.com/read/29130703/nutritional-practices-in-very-low-birth-weight-infants-a-national-survey
#5
Gerardo Rodríguez-Martínez, Eduardo Narbona, Marcos Linés, María Gormaz, Miguel Sáenz de Pipaón, Ricardo Closa, José Uberos, Carlos Zozaya, María L Couce
BACKGROUND: Significant efforts have been made to improve the nutritional support of very preterm infants. Large surveys may help to know the nutritional practices for preterm infants in neonatal units and identify if they are in line with the current guidelines. METHODS: A multicentre nationwide web-based survey on clinical feeding practices in very low birth weight (VLBW) infants was conducted in tertiary neonatal hospitals that admit infants with a birth weight < 1,500 g and/or a gestational age of < 32 weeks...
October 24, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/29128223/lowering-rumen-degradable-and-undegradable-protein-improved-amino-acid-metabolism-and-energy-utilization-in-lactating-dairy-cows-exposed-to-heat-stress
#6
J D Kaufman, K G Pohler, J T Mulliniks, A G Ríus
The objective of this study was to evaluate the effects of reducing dietary rumen-degradable protein (RDP) and rumen-undegradable protein (RUP) on protein and energy metabolism in heat-stressed dairy cows. Eighteen primiparous and 30 multiparous mid-lactation Holstein cows were used in a completely randomized design arranged in a 2 × 2 factorial (n = 12/treatment). Cows were randomly assigned to 1 of 4 dietary treatments that included 2 levels of RDP (10 and 8%; D) and 2 levels of RUP (8 and 6%; U) of dry matter for 21 d as (1) 10D:8U, (2) 8D:8U, (3) 10D:6U, and (4) 8D:6U...
November 8, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29127003/recombinant-alpha-fetoprotein-receptor-binding-domain-co-expression-with-polyglutamate-tags-facilitates-in-vivo-folding-in-e-coli
#7
Murad Mollaev, Neonila Gorokhovets, Elena Nikolskaya, Maria Faustova, Arthur Zabolotsky, Maria Sokol, Oksana Tereshenko, Olga Zhunina, Vitaliy Shvets, Evgeniy Severin, Nikita Yabbarov
A wide range of methods are known to increase the prokaryotic intracellular recombinant proteins solubility, for instance, growth at low temperature, supplementation of culture media with "chemical chaperones" (proline, glycine-betaine, and trehalose), co-expression with chaperones or highly soluble fusion partners. As an alternative, we have introduced the polyglutamate tag, which, as it has been shown, increased the protein solubility and facilitated folding. In this study we evaluated the minimal quantity of high density negatively charged EEEEVE amino acid repeats (pGlu) necessary to switch the recombinant receptor-binding domain of human alpha-fetoprotein (rbdAFP) expression almost entirely from the inclusion bodies to the soluble cytoplasmic fraction in E...
November 7, 2017: Protein Expression and Purification
https://www.readbyqxmd.com/read/29124015/the-influence-of-parental-food-preference-and-neophobia-on-children-with-phenylketonuria-pku
#8
Sharon Evans, Anne Daly, Satnam Chahal, Catherine Ashmore, John MacDonald, Anita MacDonald
Background: In a previous case-control study, we demonstrated that children with PKU and non-PKU controls preferred sweet foods. Additionally, children with PKU exhibited food neophobia, with no preference for bitter tasting foods associated with the taste of phenylalanine (Phe)-free L-amino acid supplements. Objective: In an observational extension study, we evaluated the influence of parental food choice and neophobia on their children's taste preferences and food neophobia...
March 2018: Molecular Genetics and Metabolism Reports
https://www.readbyqxmd.com/read/29122055/extruded-linseed-alone-or-in-combination-with-fish-oil-modifies-mammary-gene-expression-profiles-in-lactating-goats
#9
Y Faulconnier, L Bernard, C Boby, J Domagalski, Y Chilliard, C Leroux
Nutrition is a major factor that regulates ruminant milk components, particularly its fatty acid (FA) composition, which is an important determinant of milk nutritional quality. In the mammary gland, milk component biosynthesis involves a large number of genes under nutritional regulation that are not well understood. Thus, the objective of the present study was to evaluate the effects of extruded linseeds (EL) alone or in combination with fish oil (ELFO) on goat mammary gene expression. In total, 14 goats were fed one of the following three diets: a natural grassland hay basal diet (CTRL) alone, CTRL supplemented with 530 g/day of EL, or 340 g/day of EL plus 39 g/day of fish oil (ELFO)...
November 10, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29118705/oxaliplatin-induced-hyperammonemic-encephalopathy-in-a-patient-with-metastatic-pancreatic-cancer-a-case-report
#10
Takatsugu Ogata, Hironaga Satake, Misato Ogata, Yukimasa Hatachi, Hisateru Yasui
Oxaliplatin-based chemotherapy is widely used to treat advanced cancer. Oxaliplatin-induced hyperammonemic encephalopathy is rarely reported. Here, we report a case of oxaliplatin-induced hyperammonemic encephalopathy occurring after gemcitabine plus oxaliplatin (GEMOX) chemotherapy in a patient with pancreatic cancer. A 76-year-old man received GEMOX regimen as first-line treatment for pancreatic adenocarcinoma with peritoneal dissemination. GEMOX consists of gemcitabine (1,000 mg/m(2)) and oxaliplatin (100 mg/m(2)) on day 1, repeated every 2 weeks...
September 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/29117233/dietary-amino-acid-and-vitamin-complex-protects-honey-bee-from-immunosuppression-caused-by-nosema-ceranae
#11
Uros Glavinic, Biljana Stankovic, Vladimir Draskovic, Jevrosima Stevanovic, Tamas Petrovic, Nada Lakic, Zoran Stanimirovic
Microsporidium Nosema ceranae is well known for exerting a negative impact on honey bee health, including down-regulation of immunoregulatory genes. Protein nutrition has been proven to have beneficial effects on bee immunity and other aspects of bee health. Bearing this in mind, the aim of our study was to evaluate the potential of a dietary amino acid and vitamin complex "BEEWELL AminoPlus" to protect honey bees from immunosuppression induced by N. ceranae. In a laboratory experiment bees were infected with N...
2017: PloS One
https://www.readbyqxmd.com/read/29117187/the-green-tea-modulates-large-intestinal-microbiome-and-exo-endogenous-metabolome-altered-through-chronic-uvb-exposure
#12
Eun Sung Jung, Hye Min Park, Seung Min Hyun, Jong Cheol Shon, Digar Singh, Kwang-Hyeon Liu, Tae Woong Whon, Jin-Woo Bae, Jae Sung Hwang, Choong Hwan Lee
The attenuating effects of green tea supplements (GTS) against the ultraviolet (UV) radiation induced skin damages are distinguished. However, the concomitant effects of GTS on the large intestinal microbiomes and associated metabolomes are largely unclear. Herein, we performed an integrated microbiome-metabolome analysis to uncover the esoteric links between gut microbiome and exo/endogenous metabolome maneuvered in the large intestine of UVB-exposed mice subjected to dietary GTS. In UVB-exposed mice groups (UVB), class Bacilli and order Bifidobacteriales were observed as discriminant taxa with decreased lysophospholipid levels compared to the unexposed mice groups subjected to normal diet (NOR)...
2017: PloS One
https://www.readbyqxmd.com/read/29116537/critical-analysis-of-excessive-utilization-of-crude-protein-in-ruminants-ration-impact-on-environmental-ecosystem-and-opportunities-of-supplementation-of-limiting-amino-acids-a-review
#13
Imtiaz Hussain Raja Abbasi, Farzana Abbasi, Mohamed E Abd El-Hack, Mervat A Abdel-Latif, Rab N Soomro, Khawar Hayat, Mohamed A E Mohamed, Bello M Bodinga, Junhu Yao, Yangchun Cao
Protein quality plays a key role than quantity in growth, production, and reproduction of ruminants. Application of high concentration of dietary crude protein (CP) did not balance the proportion of these limiting amino acids (AA) at duodenal digesta of high producing dairy cow. Thus, dietary supplementation of rumen-protected AA is recommended to sustain the physiological, productive, and reproductive performance of ruminants. Poor metabolism of high CP diets in rumen excretes excessive nitrogen (N) through urine and feces in the environment...
November 8, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29110578/effects-of-combined-%C3%AE-galactosidase-and-xylanase-supplementation-on-nutrient-digestibility-and-growth-performance-in-growing-pigs
#14
Shihai Zhang, Junjie Song, Zixiao Deng, Lin Cheng, Min Tian, Wutai Guan
Two experiments were conducted to investigate the effect of combined supplementation of α-galactosidase and xylanase on nutrient digestibility and growth performance in growing pigs. Experiment 1 had a 2 × 2 Latin square design, where eight barrows (45.0 ± 0.52 kg body weight [BW]) were fitted with a simple T-cannula in the distal ileum and received a basal diet without or with supplementation of α-galactosidase (12 U/kg diet) and xylanase (15 AXC/kg diet) within two periods of 10 d. The apparent ileal digestibility (AID) and apparent total tract digestibility of nutrients, pH, viscosity of digesta and digestive enzyme activities were assessed...
December 2017: Archives of Animal Nutrition
https://www.readbyqxmd.com/read/29109174/orientia-tsutsugamushi-modulates-endoplasmic-reticulum-associated-degradation-to-benefit-its-growth
#15
Kyle G Rodino, Lauren VieBrock, Sean M Evans, Hong Ge, Allen L Richards, Jason A Carlyon
Orientia tsutsugamushi, an obligate intracellular bacterium that is auxotrophic for the aromatic amino acids and histidine, causes scrub typhus, a potentially deadly infection that threatens one billion people. O. tsutsugamushi growth is minimal during the first 24 to 48 h of infection, but becomes logarithmic thereafter. How the pathogen modulates cellular functions to support its growth is poorly understood. The unfolded protein response (UPR) is a cytoprotective pathway that relieves endoplasmic reticulum (ER) stress by promoting ER-associated degradation (ERAD) of misfolded proteins...
November 6, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/29108416/chlorflavonin-targets-acetohydroxyacid-synthase-catalytic-subunit-ilvb1-for-synergistic-killing-of-mycobacterium-tuberculosis
#16
Nidja Rehberg, Herve Sergi Akone, Thomas R Ioerger, German Erlenkamp, Georgios Daletos, Holger Gohlke, Peter Proksch, Rainer Kalscheuer
The flavonoid natural compound chlorflavonin was isolated from the endophytic fungus Mucor irregularis, which was obtained from the Cameroonian medicinal plant Moringa stenopetala. Chlorflavonin exhibited strong growth inhibitory activity in vitro against Mycobacterium tuberculosis (MIC90 1.56 μM) while exhibiting no cytotoxicity towards the human cell lines MRC-5 and THP-1 up to concentrations of 100 µM. Mapping of resistance-mediating mutations employing whole-genome sequencing, chemical supplementation assays, molecular docking studies as well as enzymatic characterization revealed that chlorflavonin specifically inhibits the acetohydroxyacid synthase catalytic subunit IlvB1, causing combined auxotrophies to branched chain amino acids and to pantothenic acid...
November 6, 2017: ACS Infectious Diseases
https://www.readbyqxmd.com/read/29108327/evaluation-of-the-branched-chain-amino-acid-to-tyrosine-ratio-prior-to-treatment-as-a-prognostic-predictor-in-patients-with-liver-cirrhosis
#17
Toru Ishikawa, Michitaka Imai, Masayoshi Ko, Hiroki Sato, Yujiro Nozawa, Tomoe Sano, Akito Iwanaga, Keiichi Seki, Terasu Honma, Toshiaki Yoshida
This study evaluated whether the branched-chain amino acid-to-tyrosine ratio (BTR) is a prognostic predictive factor in patients with liver cirrhosis by determining the relationship of the BTR with event-free survival in a retrospective, observational cohort study. The medical records of patients with liver cirrhosis who visited our institution from February 2000 to May 2012 were examined. Events due to liver cirrhosis were defined as death, worsening of esophageal and/or gastric varices, hepatocellular carcinoma, and liver failure...
October 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/29108040/replacing-dietary-nonessential-amino-acids-with-ammonia-nitrogen-does-not-alter-amino-acid-profile-of-deposited-protein-in-the-carcass-of-growing-pigs-fed-a-diet-deficient-in-nonessential-amino-acid-nitrogen
#18
W D Mansilla, J K Htoo, C F M de Lange
Amino acid usage for protein retention, and, consequently, the AA profile of retained protein, is the main factor for determining AA requirements in growing animals. The objective of the present study was to determine the effect of supplementing ammonia N on whole-body N retention and the AA profile of retained protein in growing pigs fed a diet deficient in nonessential AA (NEAA) N. In total, 48 barrows with a mean initial BW of 13.6 kg (SD 0.7) were used. At the beginning of the study, 8 pigs were euthanized for determination of initial protein mass...
October 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/29107336/citrulline-in-health-and-disease-review-on-human-studies
#19
REVIEW
Cinzia Papadia, Sylwia Osowska, Luc Cynober, Alastair Forbes
The amino acid L-citrulline (CIT) is safely used from the neonatal period onwards in those with urea cycle defects and carbamyl phosphate synthetase or ornithine transcarbamylase deficiencies, but several lines of enquiry indicate that it might have a much wider therapeutic role. When protein intake is low and there is a catabolic state, endogenous arginine (ARG) synthesis cannot fully be met and its supplementation can prove challenging, particularly in patients with critical and multisystem illness. Supplementary CIT could constitute a safer but still focused means of delivering ARG to endothelial and immune cells as CIT is efficiently recycled into these cells and as kidneys can convert CIT into ARG...
October 16, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/29105115/randomised-clinical-study-the-effects-of-oral-taurine-6-day%C3%A2-g-vs-placebo-daily-on-portal-hypertension
#20
R Schwarzer, D Kivaranovic, M Mandorfer, R Paternostro, D Wolrab, B Heinisch, T Reiberger, M Ferlitsch, C Gerner, M Trauner, M Peck-Radosavljevic, A Ferlitsch
BACKGROUND: The amino sulphonic acid taurine reduces oxidative endoplasmatic reticulum stress and inhibits hepatic stellate cell activation, which might lead to reduction of portal pressure in cirrhosis. AIM: To assess the haemodynamic effects of taurine supplementation in patients with cirrhosis and varices. METHODS: Patients with hepatic venous pressure gradient (HVPG) ≥12 mm Hg were included in this prospective proof of concept study...
November 3, 2017: Alimentary Pharmacology & Therapeutics
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