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https://www.readbyqxmd.com/read/28922657/methods-employed-in-cytofluorometric-assessment-of-eryptosis-the-suicidal-erythrocyte-death
#1
Mohamed Jemaà, Myriam Fezai, Rosi Bissinger, Florian Lang
Suicidal erythrocyte death or eryptosis contributes to or even accounts for anemia in a wide variety of clinical conditions, such as iron deficiency, dehydration, hyperphosphatemia, vitamin D excess, chronic kidney disease (CKD), hemolytic-uremic syndrome, diabetes, hepatic failure, malignancy, arteriitis, sepsis, fever, malaria, sickle-cell disease, beta-thalassemia, Hb-C and G6PD-deficiency, Wilsons disease, as well as advanced age. Moreover, eryptosis is triggered by a myriad of xenobiotics and endogenous substances including cytotoxic drugs and uremic toxins...
September 1, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28922368/a-tree-of-life-based-on-ninety-eight-expressed-genes-conserved-across-diverse-eukaryotic-species
#2
Pawan Kumar Jayaswal, Vivek Dogra, Asheesh Shanker, Tilak Raj Sharma, Nagendra Kumar Singh
Rapid advances in DNA sequencing technologies have resulted in the accumulation of large data sets in the public domain, facilitating comparative studies to provide novel insights into the evolution of life. Phylogenetic studies across the eukaryotic taxa have been reported but on the basis of a limited number of genes. Here we present a genome-wide analysis across different plant, fungal, protist, and animal species, with reference to the 36,002 expressed genes of the rice genome. Our analysis revealed 9831 genes unique to rice and 98 genes conserved across all 49 eukaryotic species analysed...
2017: PloS One
https://www.readbyqxmd.com/read/28921406/genome-annotation-and-validation-of-keratin-hydrolyzing-proteolytic-enzymes-from-serratia-marcescens-egd-hp20
#3
Priya Fuke, Vaibhav V Gujar, Anshuman A Khardenavis
Stabilization and utilization of poultry waste demand efficient biodegradation either by mixture of enzymes or by microbial system that can produce different types of protein-hydrolyzing enzymes. For utilization of this keratinous biomass, in the present study, genome was sequenced and annotated for a bacterium having multiple enzymatic options for hydrolysis of different soluble and insoluble protein fractions of poultry waste. Among the soluble protein substrates, optimum production of enzyme and soluble protein was observed in case of casein, whereas among the insoluble protein substrates, maximum production of enzyme was achieved when broken nails were used...
September 18, 2017: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/28920839/natronotalea-proteinilytica-gen-nov-sp-nov-and-longimonas-haloalkaliphila-sp-nov-extremely-haloalkaliphilic-members-of-the-phylum-rhodothermaeota-from-hypersaline-alkaline-lakes
#4
Dimitry Y Sorokin, Tatiana V Khijniak, Erwin A Galinski, Ilya V Kublanov
Two proteolytic bacterial strains, BSker2T and BSker3T, were enriched from sediments of hypersaline alkaline lakes in Kulunda Steppe (Altai, Russia) with chicken feathers as substrate, followed by pure culture isolation on hypersaline alkaline media with casein. The cells were non-motile, filamentous, flexible rods. The isolates were obligately aerobic heterotrophs utilizing proteins and peptides as growth substrates. Both were obligate alkaliphiles, but differed in their pH optimum for growth: pH 9.5-9.8 for Bsker2T and pH 8...
September 18, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28920057/amine-metabolism-is-influenced-by-dietary-protein-source
#5
Soumya K Kar, Alfons J M Jansman, Dirkjan Schokker, Leo Kruijt, Amy C Harms, Jerry M Wells, Mari A Smits
Growth in world population will inevitably leads to increased demand for protein for humans and animals. Protein from insects and blood plasma are being considered as possible alternatives, but more research on their nutritional quality and health effects is needed. Here, we studied the effect of dietary protein source on metabolism and metabolic amine profiles in serum and urine of mice. Groups of mice were fed semi-purified diets containing 300 g/kg of soybean meal, casein, partially delactosed whey powder, spray-dried plasma protein, wheat gluten meal, and yellow mealworm...
2017: Frontiers in Nutrition
https://www.readbyqxmd.com/read/28919842/international-society-of-sports-nutrition-position-stand-nutrient-timing
#6
REVIEW
Chad M Kerksick, Shawn Arent, Brad J Schoenfeld, Jeffrey R Stout, Bill Campbell, Colin D Wilborn, Lem Taylor, Doug Kalman, Abbie E Smith-Ryan, Richard B Kreider, Darryn Willoughby, Paul J Arciero, Trisha A VanDusseldorp, Michael J Ormsbee, Robert Wildman, Mike Greenwood, Tim N Ziegenfuss, Alan A Aragon, Jose Antonio
The International Society of Sports Nutrition (ISSN) provides an objective and critical review regarding the timing of macronutrients in reference to healthy, exercising adults and in particular highly trained individuals on exercise performance and body composition. The following points summarize the position of the ISSN:Nutrient timing incorporates the use of methodical planning and eating of whole foods, fortified foods and dietary supplements. The timing of energy intake and the ratio of certain ingested macronutrients may enhance recovery and tissue repair, augment muscle protein synthesis (MPS), and improve mood states following high-volume or intense exercise...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28918155/the-binding-of-orally-dosed-hydrophobic-active-pharmaceutical-ingredients-to-casein-micelles-in-milk
#7
M Cheema, A N Hristov, F M Harte
Casein proteins (αS1-, αS2-, β- and κ-casein) account for 80% of the total protein content in bovine milk and form casein micelles ( D¯11 = 130 nm, approximately 10(15) micelles/mL). The affinity of native casein micelles with the 3 hydrophobic active pharmaceutical ingredients (API), meloxicam [351.4 g/mol; log P = 3.43; acid dissociation constant (pKa) = 4.08], flunixin (296.2 g/mol; log P = 4.1; pKa = 5.82), and thiabendazole (201.2 g/mol; log P = 2.92; pKa = 4.64), was evaluated in bovine milk collected from dosed Holstein cows...
September 13, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28918139/comparison-of-milk-protein-composition-and-rennet-coagulation-properties-in-native-swedish-dairy-cow-breeds-and-high-yielding-swedish-red-cows
#8
Nina A Poulsen, Maria Glantz, Anette K Rosengaard, Marie Paulsson, Lotte B Larsen
Recent studies have reported a very high frequency of noncoagulating milk in Swedish Red cows. The underlying factors are not fully understood. In this study, we explored rennet-induced coagulation properties and relative protein profiles in milk from native Swedish Mountain and Swedish Red Polled cows and compared them with a subset of noncoagulating (NC) and well-coagulating (WC) milk samples from modern Swedish Red cows. The native breeds displayed a very low prevalence of NC milk and superior milk coagulation properties compared with Swedish Red cows...
September 13, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28906440/native-and-heated-hydrolysates-of-milk-proteins-and-their-capacity-to-inhibit-lipid-peroxidation-in-the-zebrafish-larvae-model
#9
Wilman Carrillo, Xavier Guzmán, Edgar Vilcacundo
Casein and whey proteins with and without heat treatment were obtained of whole milk and four commercial milks in Ecuador, and were hydrolyzed. Then, their capacity to inhibit the lipid peroxidation using the TBARS method was evaluated at concentrations of 0.02, 0.04, 0.2, and, 0.4 mg/mL. Native and heated hydrolysates of milk proteins present high inhibitions of lipid peroxidation with a dose dependent effect both in vivo and in vitro tests. Casein and whey proteins obtained from whole milk were the ones with the highest anti-oxidant activity in vitro and in vivo test...
September 14, 2017: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28903954/quantity-and-source-of-dietary-protein-influence-metabolite-production-by-gut-microbiota-and-rectal-mucosa-gene-expression-a-randomized-parallel-double-blind-trial-in-overweight-humans
#10
Martin Beaumont, Kevin Joseph Portune, Nils Steuer, Annaïg Lan, Victor Cerrudo, Marc Audebert, Florent Dumont, Giulia Mancano, Nadezda Khodorova, Mireille Andriamihaja, Gheorghe Airinei, Daniel Tomé, Robert Benamouzig, Anne-Marie Davila, Sandrine Paule Claus, Yolanda Sanz, François Blachier
Background: Although high-protein diets (HPDs) are frequently consumed for body-weight control, little is known about the consequences for gut microbiota composition and metabolic activity and for large intestine mucosal homeostasis. Moreover, the effects of HPDs according to the source of protein need to be considered in this context.Objective: The objective of this study was to evaluate the effects of the quantity and source of dietary protein on microbiota composition, bacterial metabolite production, and consequences for the large intestinal mucosa in humans...
September 13, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28895511/croceivirga-radicis-gen-nov-sp-nov-isolated-from-a-rotten-tropical-mangrove-root
#11
Dong Hu, Liping Wang, Yanwu Chen, Xiaoyi Li, Yaping Du, Fengqin Sun, Lei Wang, Chun Fan, Ran Zhao, Chen Tang, Zongze Shao
A novel bacterial strain, designated HSG9T, was isolated from aisolated from a rotten tropical mangrove root. Cells of strain HSG9T were aerobic, Gram-stain-negative, yellow, oxidase-negative and catalase-positive. Growth was observed in 0.5-9 % sea salt (optimum 3 %, w/v), at 10-42 °C (optimum 25-35 °C) and at pH 6.0-8.0 (optimum 7.0-8.0). Gelatin, esterase and Tweens 20, 40, 60 and 80 were hydrolysed, but starch, protein, cellulose and casein were not. Phylogenetic analysis based on the 16S rRNA gene sequence indicated that strain HSG9T formed an independent lineage related to the family Flavobacteriaceae...
September 12, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28888602/properties-of-acid-gels-made-from-sodium-caseinate-maltodextrin-conjugates-prepared-by-a-wet-heating-method
#12
Shuwen Zhang, Yuansheng Gong, Som Khanal, Yanjie Lu, John A Lucey
Covalent attachment of polysaccharides to proteins (conjugation) via the Maillard reaction has been extensively studied. Conjugation can lead to a significant improvement in protein functionality (e.g., solubility, emulsification, and heat stability). Caseins have previously been successfully conjugated with maltodextrin (Md), but the effect on the detailed acid gelation properties has not been examined. We studied the effect of conjugating sodium caseinate (NaCN) with 3 different sized Md samples via the Maillard reaction in aqueous solutions...
September 6, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28886335/macromolecular-assemblies-of-the-mammalian-circadian-clock
#13
Rajindra P Aryal, Pieter Bas Kwak, Alfred G Tamayo, Michael Gebert, Po-Lin Chiu, Thomas Walz, Charles J Weitz
The mammalian circadian clock is built on a feedback loop in which PER and CRY proteins repress their own transcription. We found that in mouse liver nuclei all three PERs, both CRYs, and Casein Kinase-1δ (CK1δ) are present together in an ∼1.9-MDa repressor assembly that quantitatively incorporates its CLOCK-BMAL1 transcription factor target. Prior to incorporation, CLOCK-BMAL1 exists in an ∼750-kDa complex. Single-particle electron microscopy (EM) revealed nuclear PER complexes purified from mouse liver to be quasi-spherical ∼40-nm structures...
September 7, 2017: Molecular Cell
https://www.readbyqxmd.com/read/28884934/extracellular-vesicle-mediated-mfg-e8-localization-in-the-extracellular-matrix-is-required-for-its-integrin-dependent-function-in-mouse-mammary-epithelial-cells
#14
Takuya Ooishi, Daita Nadano, Tsukasa Matsuda, Kenzi Oshima
Milk fat globule-EGF factor 8 (MFG-E8) is a divalent-binding secretory protein possessing an Arg-Gly-Asp (RGD) motif and a phosphatidylserine (PS)-binding motif. This protein has been shown to be involved in mammary gland development and morphogenesis. Integrin-binding activity is necessary for these MFG-E8-dependent cell processes. Although the target cells and molecules of MFG-E8 in the cellular microenvironment are important to understand its physiological function, its localization is largely unclear. Here, we found that mouse MFG-E8 localized to the basal lamina of the mammary gland during involution...
September 8, 2017: Genes to Cells: Devoted to Molecular & Cellular Mechanisms
https://www.readbyqxmd.com/read/28880968/purification-and-characterization-of-a-novel-metalloprotease-from-fruiting-bodies-of-oudemansiella-radicata
#15
Xueran Geng, Rigen Te, Guoting Tian, Yongchang Zhao, Liyan Zhao, Hexiang Wang, Tzi Bun Ng
In this study, a 39-kDa metalloprotease was purified from a rare edible mushroom with health-promoting activities, Oudemansiella radicata, using a purification protocol which entailed anion exchange chromatography on DEAE-cellulose and Q-Sepharose columns and gel filtration by fast protein liquid chromatography on a Superdex 75 column. Some peptide sequences were obtained by LC-MS/MS analysis and one of the sequences, DAWIQADVNR, manifested 90% identity to Coprinopsis cinerea metalloprotease. The optimal reaction pH and temperature for Oudemansiella radicata protease were pH 7...
2017: Acta Biochimica Polonica
https://www.readbyqxmd.com/read/28877654/nucks-nuclear-elevated-expression-indicates-progression-and-prognosis-of-ovarian-cancer
#16
Ce Shi, Ling Qin, Hongyu Gao, Lina Gu, Chang Yang, Hebing Liu, Tianbo Liu
NUCKS (nuclear, casein kinase, and cyclin-dependent kinase substrate) is implicated in the tumorigenesis of several human malignancies, but its role in ovarian cancer remains unknown. We aim to investigate NUCKS expression and its clinical significance in ovarian cancer. The messenger RNA expression of NUCKS was determined in normal and malignant ovarian tissues using quantitative polymerase chain reaction assay. Immunohistochemistry was applied to detect the status of NUCKS protein expression in 121 ovarian cancer tissues...
September 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28874824/eif4b-phosphorylation-at-ser504-links-synaptic-activity-with-protein-translation-in-physiology-and-pathology
#17
Barbara Bettegazzi, Serena Bellani, Paolo Roncon, Fabrizia Claudia Guarnieri, Alice Bertero, Franca Codazzi, Flavia Valtorta, Michele Simonato, Fabio Grohovaz, Daniele Zacchetti
Neuronal physiology requires activity-driven protein translation, a process in which translation initiation factors are key players. We focus on eukaryotic initiation factor 4B (eIF4B), a regulator of protein translation, whose function in neurons is undetermined. We show that neuronal activity affects eIF4B phosphorylation and identify Ser504 as a phosphorylation site regulated by casein kinases and sensitive to the activation of metabotropic glutamate receptors. Ser504 phosphorylation increases eIF4B recruitment to the pre-initiation complex and influences eIF4B localization at synapses...
September 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28873701/encapsulation-of-omega-3-fatty-acids-in-nanoemulsions-and-microgels-impact-of-delivery-system-type-and-protein-addition-on-gastrointestinal-fate
#18
Fang Chen, Guang-Qin Fan, Zipei Zhang, Ruojie Zhang, Ze-Yuan Deng, David Julian McClements
Carefully designed delivery systems are required to encapsulate and protect omega-3 fatty acids in commercial food and beverage products, but then release them at the required site-of-action within the human gastrointestinal tract (GIT). Previously, we showed that the oxidative stability of flaxseed oil (a plant-based source of omega-3 fatty acids) encapsulated in nanoemulsion droplets or calcium alginate microgels (hydrogel beads) was improved using caseinate as a natural antioxidant. In this study, the impact of caseinate on the digestion of flaxseed oil encapsulated in these delivery systems was investigated using a simulated GIT...
October 2017: Food Research International
https://www.readbyqxmd.com/read/28873673/colloidal-properties-of-sodium-caseinate-stabilized-nanoemulsions-prepared-by-a-combination-of-a-high-energy-homogenization-and-evaporative-ripening-methods
#19
J M Montes de Oca-Ávalos, R J Candal, M L Herrera
Nanoemulsions stabilized by sodium caseinate (NaCas) were prepared using a combination of a high-energy homogenization and evaporative ripening methods. The effects of protein concentration and sucrose addition on physical properties were analyzed by dynamic light scattering (DLS), Turbiscan analysis, confocal laser scanning microscopy (CLSM) and small angle X-ray scattering (SAXS). Droplets sizes were smaller (~100nm in diameter) than the ones obtained by other methods (200 to 2000nm in diameter). The stability behavior was also different...
October 2017: Food Research International
https://www.readbyqxmd.com/read/28873595/protein-degradation-and-peptide-release-from-milk-proteins-in-human-jejunum-comparison-with-in-vitro-gastrointestinal-simulation
#20
J Sanchón, S Fernández-Tomé, B Miralles, B Hernández-Ledesma, D Tomé, C Gaudichon, I Recio
Human jejunal digests after oral ingestion of casein and whey protein were collected by a nasogastric tube and protein degradation and peptide release was compared with that found in the digests of the same substrates using a standardised protocol. No intact casein was detected in the jejunal nor in the in vitro samples taken during the intestinal phase, while β-lactoglobulin was found in one hour-jejunal samples in agreement with the in vitro digestion. In vivo and in vitro digests showed comparable peptide profiles and high number of common sequences...
January 15, 2018: Food Chemistry
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