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dietary amino acid

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https://www.readbyqxmd.com/read/28231702/effect-of-a-microbial-phytase-on-growth-performance-plasma-parameters-and-apparent-ileal-amino-acid-digestibility-in-youxian-sheldrake-fed-a-low-phosphorus-corn-soybean-diet
#1
Shaoping He, Rodolfo Frilles Medrano, Qifang Yu, Yixin Cai, Qiuzhong Dai, Jianhua He
Objective: This study investigated the effect of microbial phytase supplementation on growth performance, tibia ash, plasma parameters, apparent ileal digestibility (AID) of amino acid (AA) and apparent digestibility of nutrients in Youxian Sheldrakes fed with low-Phosphorus (P) corn-soybean diets. Methods: A total of 350 Youxian Sheldrakes (7d old) were randomly divided into 5 treatment groups: positive control (PC) group has adequate available P diet (0.42% and 0...
February 23, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28231117/compositional-analysis-of-whole-grains-processed-grains-grain-co-products-and-other-carbohydrate-sources-with-applicability-to-pet-animal-nutrition
#2
Alison N Beloshapka, Preston R Buff, George C Fahey, Kelly S Swanson
Our objective was to measure the proximate, starch, amino acid, and mineral compositions of grains, grain co-products, and other carbohydrate sources with potential use in pet foods. Thirty-two samples from barley (barley flake, cut barley, ground pearled barley, malted barley, whole pearled barley, pearled barley flakes, and steamed rolled barley); oats (groats, ground oatmeal, ground steamed groats, instant oats, oat bran, oat fiber, oat flour, quick oats, regular rolled oats, steamed rolled oat groats, and steel cut groats); rice (brown rice, polished rice, defatted rice bran, and rice flour); and miscellaneous carbohydrate sources (canary grass seed, hulled millet, whole millet, quinoa, organic spelt hull pellets, potato flake, sorghum, whole wheat, and whole yellow corn) were analyzed...
March 25, 2016: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28230263/recent-advances-in-%C3%AE-aminobutyric-acid-gaba-properties-in-pulses-an-overview
#3
REVIEW
Nooshin Nikmaram, B N Dar, Shahin Roohinejad, Mohamed Koubaa, Francisco J Barba, Greiner Ralf, Stuart K Johnson
Beans, peas, and lentils are all types of pulses that are extensively used as foods around the world due to their beneficial effects on human health including their low glycemic index, cholesterol lowering effects, ability to decrease the risk of heart diseases and their protective effects against some cancers. These health benefits are a result of their components such as bioactive proteins, dietary fibers, slowly digested starches, minerals and vitamins, and bioactive compounds. Among these bioactive compounds, γ-aminobutyric acid (GABA), a non-proteinogenic amino acid with numerous reported health benefits (e...
February 23, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28220550/metabolomic-profiling-in-umbilical-venous-plasma-reveals-effects-of-dietary-rumen-protected-arginine-or-n-carbamylglutamate-supplementation-in-nutrient-restricted-hu-sheep-during-pregnancy
#4
L Sun, H Zhang, Y Fan, Y Guo, G Zhang, H Nie, F Wang
Maternal nutrient restriction during pregnancy is a major problem worldwide for human and animal production. Arginine (Arg) is critical to health, growth and reproduction. N-carbamylglutamate (NCG), a key enzyme in arginine synthesis, is not extensively degraded in rumen. The aim of this study was to investigate ameliorating effects of rumen-protected arginine (RP-Arg) and NCG supplementation on dietary in undernourished Hu sheep during gestation. From day 35 to 110 of gestation, 32 Hu ewes carrying twin foetuses were randomly divided into four groups: a control (CG) group (n = 8; fed 100% National Research Council (NRC) requirements for pregnant sheep), a nutrient-restricted (RG) group (n = 8; fed 50% NRC requirements, which included 50% mineral-vitamin mixture) and two treatment (Arg and NCG) groups (n = 8; fed 50% NRC requirements supplemented with 20 g/day RP-Arg or 5 g/day NCG, which included 50% mineral-vitamin mixture)...
February 20, 2017: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/28219950/nutritional-modulation-of-mouse-and-human-liver-bud-growth-through-a-branched-amino-acid-metabolism
#5
Hiroyuki Koike, Ran-Ran Zhang, Yasuharu Ueno, Keisuke Sekine, Yun-Wen Zheng, Takanori Takebe, Hideki Taniguchi
Liver bud progenitors experience a transient amplification during early organ growth phase, yet the responsible mechanism was not fully understood. Collective evidence highlighted the specific requirements in stem cell metabolism for expanding organ progenitors during organogenesis and regeneration. Here, transcriptome analyses showed progenitors of mouse and human liver bud growth stage specifically expressed branched chain aminotransferase1 gene, a known breakdown enzyme of branched-chain amino acid (BCAA) for energy generation...
February 20, 2017: Development
https://www.readbyqxmd.com/read/28216953/therapeutic-potential-of-alpha-ketoglutarate-against-acetaminophen-induced-hepatotoxicity-in-rats
#6
Lalita Mehra, Yasha Hasija, Gaurav Mittal
OBJECTIVE: Alpha-ketoglutarate (α-KG) is a cellular intermediary metabolite of Krebs cycle, involved in energy metabolism, amino acid synthesis, and nitrogen transport. It is available over-the-counter and marketed as a nutritional supplement. There is a growing body of evidence to suggest that dietary α-KG has the potential to maintain cellular redox status and thus can protect various oxidative stress induced disease states. The aim of the present study was to investigate the hepatoprotective role of α-KG in acetaminophen (APAP) induced toxicity in rats...
October 2016: Journal of Pharmacy & Bioallied Sciences
https://www.readbyqxmd.com/read/28215168/contributions-of-the-interaction-between-dietary-protein-and-gut-microbiota-to-intestinal-health
#7
Ning Ma, Yanan Tian, Yi Wu, Xi Ma
There is growing recognition that composition and metabolic activity of the gut microbiota can be modulated by the dietary proteins which in turn impact health. The amino acid composition and digestibility of proteins, which are influenced by its source and amount of intake, play a pivotal role in determining the microbiota. Reciprocally, it appears that the gut microbiota is also able to affect protein metabolism which give rise to the view that function between the microbiota and protein can proceed in both directions...
February 16, 2017: Current Protein & Peptide Science
https://www.readbyqxmd.com/read/28212491/food-ingestion-in-an-upright-sitting-position-increases-post-prandial-amino-acid-availability-when-compared-to-food-ingestion-in-a-lying-down-position
#8
Andrew M Holwerda, Kaatje Lenaerts, Jörgen Bierau, Will K W H Wodzig, Luc J C van Loon
Dietary protein digestion and absorption kinetics determine the post-prandial increase in muscle protein synthesis. We recently demonstrated that body position during feeding can modulate the post-prandial rise in plasma amino acid availability. Here we investigated whether protein ingestion in an upright sitting body position accelerates gastric emptying and improves dietary protein digestion and subsequent amino acid absorption compared with feeding in a supine lying body position. In a crossover design, eight young males (26±1 y, 24...
February 17, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28208072/identification-of-triosephosphate-isomerase-as-a-novel-allergen-in-octopus-fangsiao
#9
Yang Yang, Zhong-Wei Chen, Barry K Hurlburt, Gui-Ling Li, Yong-Xia Zhang, Dan-Xia Fei, Hai-Wang Shen, Min-Jie Cao, Guang-Ming Liu
Octopus is an important mollusk in human dietary for its nutritional value, however it also causes allergic reactions in humans. Major allergens from octopus have been identified, while the knowledge of novel allergens remains poor. In the present study, a novel allergen with molecular weight of 28kDa protein was purified from octopus (Octopus fangsiao) and identified as triosephosphate isomerase (TIM) by mass spectrometry. TIM aggregated beyond 45°C, and its IgE-binding activity was affected under extreme pH conditions due to the altered secondary structure...
February 13, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28202639/dietary-protein-intake-in-young-children-in-selected-low-income-countries-is-generally-adequate-in-relation-to-estimated-requirements-for-healthy-children-except-when-complementary-food-intake-is-low
#10
Joanne E Arsenault, Kenneth H Brown
Background: Previous research indicates that young children in low-income countries (LICs) generally consume greater amounts of protein than published estimates of protein requirements, but this research did not account for protein quality based on the mix of amino acids and the digestibility of ingested protein.Objective: Our objective was to estimate the prevalence of inadequate protein and amino acid intake by young children in LICs, accounting for protein quality.Methods: Seven data sets with information on dietary intake for children (6-35 mo of age) from 6 LICs (Peru, Guatemala, Ecuador, Bangladesh, Uganda, and Zambia) were reanalyzed to estimate protein and amino acid intake and assess adequacy...
February 15, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28198625/curcumin-attenuates-n-nitrosodiethylamine-induced-liver-injury-in-mice-by-utilizing-the-method-of-metabonomics
#11
Peiyu Qiu, Jiachen Sun, Shuli Man, He Yang, Long Ma, Peng Yu, Wenyuan Gao
N-Nitrosodiethylamine (DEN) exists as a food additive in cheddar cheese, processed meats, beer, water, and so forth. It is a potent hepatocarcinogen in animals and humans. Curcumin as a natural dietary compound decreased DEN-induced hepatocarcinogenesis in this research. According to the histopathological examination of liver tissues and biomarker detection in serum and livers, it was demonstrated that curcumin attenuated DEN-induced hepatocarcinogenesis through parts of regulating the oxidant stress enzymes (T-SOD and CAT), liver function (ALT and AST) and LDHA, AFP level, and COX-2/PGE2 pathway...
February 23, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28191503/differences-in-gut-metabolites-and-microbial-composition-and-functions-between-egyptian-and-u-s-children-are-consistent-with-their-diets
#12
V Shankar, M Gouda, J Moncivaiz, A Gordon, N V Reo, L Hussein, O Paliy
Previous studies indicated that populations consuming a Mediterranean diet rich in fiber, vegetables, and fruits have a significantly lower risk of cardiovascular and metabolic diseases than populations of industrialized societies consuming diets enriched in processed carbohydrates, animal proteins, and fats. To explore the potential contributions of gut microbiota to the observed diet-related metabolic effects, we conducted an integrative analysis of distal gut microbiota composition and functions and intestinal metabolites in Egyptian and U...
January 2017: MSystems
https://www.readbyqxmd.com/read/28190658/validity-and-reliability-of-a-self-administered-food-frequency-questionnaire-for-the-jphc-study-the-assessment-of-amino-acid-intake
#13
Chika Okada, Hiroyasu Iso, Junko Ishihara, Koutatsu Maruyama, Norie Sawada, Shoichiro Tsugane
BACKGROUND: The Japanese database of food amino acid composition was revised in 2010 after a 24-year interval. To examine the impact of the 2010 revision compared with that of the 1986 revision, we evaluated the validity and reliability of amino acid intakes assessed using a food frequency questionnaire (FFQ). METHODS: A FFQ including 138 food items was compared with 7-day dietary records, completed during each distinct season, to assess validity and administered twice at approximately a 1-year interval, to assess reliability...
February 9, 2017: Journal of Epidemiology
https://www.readbyqxmd.com/read/28187831/functional-analysis-of-five-trypsin-like-protease-genes-in-the-oriental-fruit-fly-bactrocera-dorsalis-diptera-tephritidae
#14
Ya-Li Li, Ming-Zhe Hou, Guang-Mao Shen, Xue-Ping Lu, Zhe Wang, Fu-Xian Jia, Jin-Jun Wang, Wei Dou
Insect midgut proteases catalyze the release of free amino acids from dietary proteins and are essential for insect normal development. To date, digestive proteases as potential candidates have made great progress in pest control. To clarify the function of trypsin-like protease genes in the digestive system of Bactrocera dorsalis, a serious pest of a wide range of tropical and subtropical fruit and vegetable crops, five trypsin genes (BdTry1, BdTry2, BdTry3, BdTry4 and BdTry5) were identified from transcriptome dataset, and the effects of feeding condition on their expression levels were examined subsequently...
March 2017: Pesticide Biochemistry and Physiology
https://www.readbyqxmd.com/read/28185876/associations-between-food-consumption-patterns-and-saliva-composition-specificities-of-eating-difficulties-children
#15
Martine Morzel, Caroline Truntzer, Eric Neyraud, Hélène Brignot, Patrick Ducoroy, Géraldine Lucchi, Cécile Canlet, Ségolène Gaillard, Florian Nicod, Sophie Nicklaus, Noël Peretti, Gilles Feron
Identifying objective markers of diet would be beneficial to research fields such as nutritional epidemiology. As a preliminary study on the validity of using saliva for this purpose, and in order to explore the relationship between saliva and diet, we focused on clearly contrasted groups of children: children with eating difficulties (ED) receiving at least 50% of their energy intake through artificial nutrition vs healthy controls (C). Saliva of ED and C children was analyzed by various methods (targeted biochemical analyses, 2-D electrophoresis coupled to MS, (1)H NMR) and their diet was characterized using food frequency questionnaires, considering 148 food items grouped into 13 categories...
February 6, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28181729/the-dietary-protein-paradox-and-threonine-15-n-depletion-pyridoxal-5-phosphate-enzyme-activity-as-a-mechanism-for-the-%C3%AE-15-n-trophic-level-effect
#16
B T Fuller, K J Petzke
RATIONALE: Nitrogen stable isotope ratios (δ(15) N values) are used to reconstruct dietary patterns, but the biochemical mechanism(s) responsible for the diet to tissue trophic level effect and its variability are not fully understood. Here δ(15) N amino acid (AA) values and physiological measurements (nitrogen intake, plasma albumin concentrations, liver reduced glutathione concentrations and leucine oxidation rates) are used to investigate increased dietary protein consumption and oxidative stress (vitamin E deficiency) in rat total plasma protein...
February 9, 2017: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/28179492/indicator-amino-acid-derived-estimate-of-dietary-protein-requirement-for-male-bodybuilders-on-a-nontraining-day-is-several-fold-greater-than-the-current-recommended-dietary-allowance
#17
Arash Bandegan, Glenda Courtney-Martin, Mahroukh Rafii, Paul B Pencharz, Peter Wr Lemon
Background: Despite a number of studies indicating increased dietary protein needs in bodybuilders with the use of the nitrogen balance technique, the Institute of Medicine (2005) has concluded, based in part on methodologic concerns, that "no additional dietary protein is suggested for healthy adults undertaking resistance or endurance exercise."Objective: The aim of the study was to assess the dietary protein requirement of healthy young male bodybuilders ( with ≥3 y training experience) on a nontraining day by measuring the oxidation of ingested l-[1-(13)C]phenylalanine to (13)CO2 in response to graded intakes of protein [indicator amino acid oxidation (IAAO) technique]...
February 8, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28179487/supplemental-citrulline-is-more-efficient-than-arginine-in-increasing-systemic-arginine-availability-in-mice
#18
Umang Agarwal, Inka C Didelija, Yang Yuan, Xiaoying Wang, Juan C Marini
Background: Arginine is considered to be an essential amino acid in various (patho)physiologic conditions of high demand. However, dietary arginine supplementation suffers from various drawbacks, including extensive first-pass extraction. Citrulline supplementation may be a better alternative than arginine, because its only fate in vivo is conversion into arginine.Objective: The goal of the present research was to determine the relative efficiency of arginine and citrulline supplementation to improve arginine availability...
February 8, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28178857/dietary-2-oxoglutarate-prevents-bone-loss-caused-by-neonatal-treatment-with-maximal-dexamethasone-dose
#19
Piotr Dobrowolski, Ewa Tomaszewska, Siemowit Muszyński, Tomasz Blicharski, Stefan G Pierzynowski
Synthetic glucocorticoids (GCs) are widely used in the variety of dosages for treatment of premature infants with chronic lung disease, respiratory distress syndrome, allergies, asthma, and other inflammatory and autoimmune conditions. Yet, adverse effects such as glucocorticoid-induced osteoporosis and growth retardation are recognized. Conversely, 2-oxoglutarate (2-Ox), a precursor of glutamine, glutamate, and collagen amino acids, exerts protective effects on bone development. Our aim was to elucidate the effect of dietary administered 2-Ox on bone loss caused by neonatal treatment with clinically relevant maximal therapeutic dexamethasone (Dex) dose...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28178201/rett-syndrome-a-focus-on-gut-microbiota
#20
Elisa Borghi, Francesca Borgo, Marco Severgnini, Miriam Nella Savini, Maria Cristina Casiraghi, Aglaia Vignoli
Rett syndrome (RTT) is an X-linked neurodevelopmental disorder affecting 1 in 10,000 live female births. Changes in microbiota composition, as observed in other neurological disorders such as autism spectrum disorders, may account for several symptoms typically associated with RTT. We studied the relationship between disease phenotypes and microbiome by analyzing diet, gut microbiota, and short-chain fatty acid (SCFA) production. We enrolled eight RTT patients and 10 age- and sex-matched healthy women, all without dietary restrictions...
February 7, 2017: International Journal of Molecular Sciences
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