keyword
MENU ▼
Read by QxMD icon Read
search

dietary amino acid

keyword
https://www.readbyqxmd.com/read/28641185/mechanistic-understanding-of-low-methylmercury-bioaccessibility-from-crayfish-procambarus-clarkii-muscle-tissue
#1
Qian Peng, Ben K Greenfield, Fei Dang, Yu Gong, Wenbo Bu, Huan Zhong
Recent research indicates that dietary exposure to mercury and other metals from crayfish consumption poses a human health concern, particularly in regions with high crayfish-consuming populations. To better understand consumption risk from methylmercury (MeHg), we quantified MeHg bioaccessibility in edible tail muscle of cooked red swamp crayfish (Procambarus clarkii, collected from seven cities in China), versus cooked fillet tissue of two finfish species: yellow croaker (Larimichthys polyactis) and snakehead (Channa argus)...
June 19, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28640602/dietary-n-carbamylglutamate-supplementation-in-reduced-protein-diet-affects-carcass-traits-and-profile-of-muscle-amino-acids-and-fatty-acids-in-finishing-pigs
#2
Changchuan Ye, Xiangzhou Zeng, JInlong Zhu, Ying Liu, Qianhong Ye, Shiyan Qiao, Xiangfang Zeng
This aim of this study was to investigate whether dietary N-Carbamylglutamate (NCG) supplementation affected carcass traits and meat quality in finishing pigs. One hundred and twenty gilts were randomly assigned to one of four treatments for 40 d, including standard protein diet (SP), reduced protein diet supplemented 1.7% L-alanine (RP + Ala), reduced protein diet supplemented with 1.0 % L-arginine (RP + Arg) and reduced protein diet supplemented with 0.1% NCG and 1.7% L-alanine (RP + NCG). NCG supplementation increased the endogenous synthesis of L-arginine...
June 22, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28636949/cloning-expression-and-nutritional-regulation-of-the-glutamine-synthetase-gene-in-ctenopharyngodon-idellus
#3
Rong Hu, Fufa Qu, Jianzhou Tang, Qiong Zhao, Jinpeng Yan, Zhigang Zhou, Yi Zhou, Zhen Liu
Glutamine synthetase (GS) is considered a master enzyme that catalyses ATP-dependent biosynthesis of glutamine from glutamate. In the present study, the GS gene was cloned from the intestine of grass carp, (Ctenopharyngodon idellus). The full-length cDNA sequence of GS encodes a 371-amino-acid polypetide. Phylogenetic analysis of the C. idellus GS sequence reveals common carp (Cyprinus carpio) as its closest neighbor. GS mRNA was differentially expressed in different tissues, with high to low gradient expression the intestine, brain, muscle, heart, gill, liver, pituitary gland, and spleen...
June 18, 2017: Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology
https://www.readbyqxmd.com/read/28621445/nutritional-and-functional-bioactivity-value-of-selected-azorean-macroalgae-ulva-compressa-ulva-rigida-gelidium-microdon-and-pterocladiella-capillacea
#4
Lisete Paiva, Elisabete Lima, Ana Isabel Neto, Massimo Marcone, José Baptista
This study presents information on the biochemical composition (dry weight basis), nutritional aspects, and angiotensin I-converting enzyme (ACE) inhibitory properties of selected macroalgae (Ulva compressa, Ulva rigida, Gelidium microdon, and Pterocladiella capillacea) from Azores. Moisture content was very high (83.2% to 90.0% of fresh weight). Total dietary fiber (33.7% to 41.0%) that presented a good balance of both soluble and insoluble fibers (15.5% to 19.2% and 18.2% to 21.8%, respectively) was the most abundant component in these macroalgae...
June 16, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/28620826/individual-amino-acid-supplementation-can-improve-energy-metabolism-and-decrease-ros-production-in-neuronal-cells-overexpressing-alpha-synuclein
#5
Vedad Delic, Jeddidiah W D Griffin, Sandra Zivkovic, Yumeng Zhang, Tam-Anh Phan, Henry Gong, Dale Chaput, Christian Reynes, Vinh B Dinh, Josean Cruz, Eni Cvitkovic, Devon Placides, Ernide Frederic, Hamed Mirzaei, Stanley M Stevens, Umesh Jinwal, Daniel C Lee, Patrick C Bradshaw
Parkinson's disease (PD) is a neurodegenerative disorder characterized by alpha-synuclein accumulation and loss of dopaminergic neurons in the substantia nigra (SN) region of the brain. Increased levels of alpha-synuclein have been shown to result in loss of mitochondrial electron transport chain complex I activity leading to increased reactive oxygen species (ROS) production. WT alpha-synuclein was stably overexpressed in human BE(2)-M17 neuroblastoma cells resulting in increased levels of an alpha-synuclein multimer, but no increase in alpha-synuclein monomer levels...
June 15, 2017: Neuromolecular Medicine
https://www.readbyqxmd.com/read/28616751/roles-of-amino-acids-in-preventing-and-treating-intestinal-diseases-recent-studies-with-pig-models
#6
REVIEW
Yulan Liu, Xiuying Wang, Yongqing Hou, Yulong Yin, Yinsheng Qiu, Guoyao Wu, Chien-An Andy Hu
Animal models are needed to study and understand a human complex disease. Because of their similarities in anatomy, structure, physiology, and pathophysiology, the pig has proven its usefulness in studying human gastrointestinal diseases, such as inflammatory bowel disease, ischemia/reperfusion injury, diarrhea, and cancer. To understand the pathogenesis of these diseases, a number of experimental models generated in pigs are available, for example, through surgical manipulation, chemical induction, microbial infection, and genetic engineering...
June 14, 2017: Amino Acids
https://www.readbyqxmd.com/read/28615380/leucine-differentially-regulates-gene-specific-translation-in-mouse-skeletal-muscle
#7
Micah J Drummond, Paul T Reidy, Lisa M Baird, Brian K Dalley, Michael T Howard
Background: Amino acids, especially leucine, are particularly effective in promoting protein synthesis. Leucine is known to increase the rate of protein synthesis in skeletal muscle through the mechanistic target of rapamycin complex 1-dependent, as well as -independent, signaling pathways. However, the overall translation program is poorly defined, and it is unknown how the activation of these pathways differentially controls the translation of specific mRNAs.Objective: Ribosome profiling and RNA sequencing were used to precisely define the translational program activated by an acute oral dose of leucine...
June 14, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28615378/amino-acid-absorption-in-the-large-intestine-of-humans-and-porcine-models
#8
REVIEW
Nikkie van der Wielen, Paul J Moughan, Marco Mensink
Dietary protein quality has been recognized as a critical issue by international authorities because it can affect important functions of the body. To predict protein quality, the FAO introduced the Digestible Indispensable Amino Acid Score. This score depends on ileal amino acid (AA) digestibility; therefore, the assumption is made that AAs are not absorbed in nutritionally relevant amounts from the large intestine. This article reviews the evidence for this assumption by considering the role of the mammalian large intestine in dietary protein and AA digestion and absorption, with particular reference to adult humans...
June 14, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28614727/micronutrient-consumption-by-female-argiope-bruennichi-affects-offspring-survival
#9
Shawn M Wilder, Jutta M Schneider
Sexual cannibalism has long been hypothesized to be a foraging decision in which females consume males for the nutrients in their bodies. While few studies have documented fecundity benefits of sexual cannibalism, several recent studies have documented benefits of cannibalism to egg hatching success or offspring survival. We tested if small supplements of dietary essential nutrients fed to female spiders, Argiope bruennichi, would result in increases in offspring survival similar to those seen following sexual cannibalism...
June 11, 2017: Journal of Insect Physiology
https://www.readbyqxmd.com/read/28612434/effect-of-increasing-taurine-and-methionine-supplementation-on-urinary-taurine-excretion-in-a-model-insectivore-the-giant-anteater-myrmecophaga-tridactyla
#10
S A Nofs, E S Dierenfeld, R C Backus
The giant anteater (Mymercophaga tridactyla) is a highly specialized insectivore for which nutrient requirements are not clearly established, making diet formulation challenging for this species. Multiple clinical reports suggest anteaters have an obligate dietary taurine (TAU) requirement. Sulphur amino acid (SAA) metabolism in adult anteaters was evaluated using noninvasive methods to measure TAU synthesis potential from dietary methionine (MET) and a basal diet containing on a dry matter (DM) basis 1.7 mg TAU/kg DM and 6...
June 14, 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/28608247/tryptophan-status-in-autism-spectrum-disorder-and-the-influence-of-supplementation-on-its-level
#11
Joanna Kałużna-Czaplińska, Jagoda Jóźwik-Pruska, Salvatore Chirumbolo, Geir Bjørklund
Recent reports show that the worldwide incidence of autism spectrum disorder (ASD) is dramatically increasing, although ASD etiology and pathogenesis are still far to be fully elucidated. Some dietary-derived essential compounds, such as the amino acid tryptophan, appear to be impaired in patients with ASD. Tryptophan (Trp) plays a significant role in the human organism and serves as a precursor for a wide range of bioactive compounds, including major neurotransmitters. Research indicates that tryptophan might be deficient in subjects with ASD...
June 12, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28606515/properties-of-soluble-dietary-fiber-polysaccharide-from-papaya-peel-obtained-through-alkaline-or-ultrasound-assisted-alkaline-extraction
#12
Weimin Zhang, Guanglin Zeng, Yonggui Pan, Wenxue Chen, Wuyang Huang, Haiming Chen, Yuansong Li
Soluble dietary fiber (SDF) from the peel of papaya (Carica papaya Linn.) was recovered through alkaline extraction (alkaline-extracted SDF, a-SDF) and ultrasound-assisted alkaline extraction (ultrasound-treated SDF, u-SDF) processes, and the composition, structure and properties of the extracts were compared. The optimal parameters for obtaining the maximum extraction yield of u-SDF were evaluated through response surface methodology. Under optimal conditions, the maximum yield of u-SDF was 36.99%, and u-SDF had a lower total amino acid content but a higher essential amino acid (16...
September 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28605560/effects-of-dietary-energy-and-lysine-levels-on-growth-performance-and-carcass-yields-of-pekin-ducks-from-hatch-to-21-days-of-age
#13
Z G Wen, T J Rasolofomanana, J Tang, Y Jiang, M Xie, P L Yang, S S Hou
A 2 × 6 factorial experiment, using 2 dietary apparent metabolizable energy (AME) levels (2,750 and 3,050 Kcal/kg) and 6 supplemental lysine (Lys) levels (0, 0.10, 0.20, 0.30, 0.40, and 0.50%), was conducted to study the effects of dietary energy and lysine levels on growth performance and carcass yields of Pekin ducks from hatch to 21 d of age. A total of 576 one-day-old male White Pekin ducks was randomly allotted to 12 dietary treatments, each containing 6 replicate pens with 8 birds per pen. At 21 d of age, body weight gain, feed intake, and feed/gain were measured, and then 2 ducks selected randomly from each pen were slaughtered to evaluate the yields of abdominal fat, breast meat, and leg meat...
June 9, 2017: Poultry Science
https://www.readbyqxmd.com/read/28603839/evaluation-of-the-effects-of-sweet-potato-ipomoea-batatas-l-lam-in-broiler-diets
#14
J Pandi, P Glatz, R Forder, B Komolong, K Chousalkar
Cereal grains such as maize and wheat are used extensively in feed formulations for poultry as the primary source of carbohydrates. High cost of these grains in many developing countries necessitates the evaluation of other ingredients that are grown locally. Sweet potato is one such crop. The study was conducted as a proof of concept experiment to test the hypothesis that in the presence and absence of enzyme, sweet potato roots when included in diets of broiler chickens may affect the total metabolisable energy content of the diets which may exert certain influences on dry matter digestibility of these diets as well as impacting on production and certain gut parameters...
June 12, 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/28601462/addition-of-glycerol-to-lactating-cow-diets-stimulates-dry-matter-intake-and-milk-protein-yield-to-a-greater-extent-than-addition-of-corn-grain
#15
D L Bajramaj, R V Curtis, J J M Kim, M Corredig, J Doelman, T C Wright, V R Osborne, J P Cant
The objective of this study was to determine if the addition of glycerol to the diet of dairy cows would stimulate milk protein yield in the same manner as the addition of corn grain. Twelve multiparous lactating dairy cows at 81 ± 5 d in milk were subjected to 3 dietary treatments in a replicated 3 × 3 Latin square design for 28-d periods. The diets were a 70% forage diet considered the basal diet, the basal diet with 19% ground and high-moisture corn replacing forages, and the basal diet with 15% refined glycerol and 4% added protein supplements to be isocaloric and isonitrogenous with the corn diet...
June 7, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28599405/lunasin-a-promising-polypeptide-for-the-prevention-and-treatment-of-cancer
#16
Xing Wan, Hong Liu, Yong Sun, Jinlan Zhang, Xianbing Chen, Ning Chen
Strategies for the treatment of cancer remain unsatisfactory due to the poor understanding of the complicated underlying molecular mechanisms of carcinogenesis. A number of types of cancer exhibit a marked association with dietary habits and lifestyles. Therefore, the modulation of dietary habits or lifestyles may be an effective strategy for preventing the formation and progression of cancer. Proteins and polypeptides from soybean have been developed as healthcare products due to their marked activity in inhibiting the progression of cancer at various stages...
June 2017: Oncology Letters
https://www.readbyqxmd.com/read/28597057/an-l-glutamine-transporter-isoform-for-neurogenesis-facilitated-by-l-theanine
#17
REVIEW
Yukio Yoneda
L-Theanine (=γ-glutamylethylamide) is an amino acid ingredient in green tea with a structural analogy to L-glutamine (L-GLN) rather than L-glutamic acid (L-GLU), with regards to the absence of a free carboxylic acid moiety from the gamma carbon position. L-theanine markedly inhibits [(3)H]L-GLN uptake without affecting [(3)H]L-GLU uptake in cultured neurons and astroglia. In neural progenitor cells with sustained exposure to L-theanine, upregulation of the L-GLN transporter isoform Slc38a1 expression and promotion of both proliferation and neuronal commitment are seen along with marked acceleration of the phosphorylation of mammalian target of rapamycin (mTOR) and relevant downstream proteins...
June 9, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28595365/evaluation-of-starter-dietary-digestible-lysine-level-on-broilers-raised-under-a-sex-separated-or-straight-run-housing-regime-part-2-economics-of-sex-separation-and-digestible-lysine-level-for-maximum-returns
#18
M J Da Costa, G Colson, T J Frost, J Halley, G M Pesti
The objective of this experiment was to determine the maximum net returns digestible lysine (dLys) levels (MNRL) when maintaining the ideal amino acid ratio for starter diets of broilers raised sex separate or comingled (straight-run). A total of 3,240 Ross 708 chicks was separated by sex and placed in 90 pens by 2 rearing types: sex separate (36 males or 36 females) or straight-run (18 males + 18 females). Each rearing type was fed 6 starter diets (25 d) formulated to have dLys levels between 1.05 and 1.80%...
June 8, 2017: Poultry Science
https://www.readbyqxmd.com/read/28589054/a-patient-with-msud-acute-management-with-sodium-phenylacetate-sodium-benzoate-and-sodium-phenylbutyrate
#19
Melis Köse, Ebru Canda, Mehtap Kagnici, Sema Kalkan Uçar, Mahmut Çoker
In treatment of metabolic imbalances caused by maple syrup urine disease (MSUD), peritoneal dialysis, and hemofiltration, pharmacological treatments for elimination of toxic metabolites can be used in addition to basic dietary modifications. Therapy with sodium phenylacetate/benzoate or sodium phenylbutyrate (NaPB) in urea-cycle disorder cases has been associated with a reduction in branched-chain amino acid (BCAA) concentrations when the patients are on adequate dietary protein intake. Moreover, NaPB in treatment of MSUD patients is also associated with reduction of BCAA levels in a limited number of cases...
2017: Case Reports in Pediatrics
https://www.readbyqxmd.com/read/28587349/gut-flora-profiling-and-fecal-metabolite-composition-of-colorectal-cancer-patients-and-healthy-individuals
#20
Xiaoxue Wang, Jianping Wang, Benqiang Rao, Li Deng
Colorectal cancer is one of the most common types of cancer in the world and its morbidity and mortality rates are increasing due to alterations to human lifestyle and dietary habits. The relationship between human gut flora and colorectal cancer has attracted increasing attention. In the present study, a metabolic fingerprinting technique that combined pyrosequencing with gas chromatography-mass spectrometry was utilized to compare the differences in gut flora profiling and fecal metabolites between healthy individuals and patients with colorectal cancer...
June 2017: Experimental and Therapeutic Medicine
keyword
keyword
102681
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"