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Casein protein

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https://www.readbyqxmd.com/read/27903831/dietary-mung-bean-protein-reduces-hepatic-steatosis-fibrosis-and-inflammation-in-male-mice-with-diet-induced-nonalcoholic-fatty-liver-disease
#1
Hitoshi Watanabe, Yuka Inaba, Kumi Kimura, Shun-Ichiro Asahara, Yoshiaki Kido, Michihiro Matsumoto, Takayasu Motoyama, Nobuhiko Tachibana, Shuichi Kaneko, Mitsutaka Kohno, Hiroshi Inoue
BACKGROUND: As the prevalence of nonalcoholic fatty liver disease (NAFLD), including steatosis and nonalcoholic steatohepatitis, is increasing, novel dietary approaches are required for the prevention and treatment of NAFLD. OBJECTIVE: We evaluated the potential of mung bean protein isolate (MuPI) to prevent NAFLD progression. METHODS: In Expts. 1 and 2, the hepatic triglyceride (TG) concentration was compared between 8-wk-old male mice fed a high-fat diet (61% of energy from fat) containing casein, MuPI, and soy protein isolate and an MuPI-constituent amino acid mixture as a source of amino acids (18% of energy) for 4 wk...
November 30, 2016: Journal of Nutrition
https://www.readbyqxmd.com/read/27903233/evaluation-of-structure-chaperone-activity-and-allergenicity-of-reduced-glycated-adduct-of-bovine-%C3%AE-casein
#2
Reza Yousefi, Leila Ferdowsi, Zohreh Tavaf, Tanaz Sadeghian, Ali Mohammad Tamaddon, Mozhgan Moghtaderi, Zahra Pourpak
Milk has a potent reducing environment with an important quantity of sugar levels. In the current study β-casein was glycated in the presence of D-glucose and sodium cyanoborohydride as a reducing agent. Then, the reduced glucitol adduct of β-casein was used for the structural and functional analyses using different spectroscopic techniques. The results of fluorescence and far ultraviolet circular dichroism assessments suggest important structural alteration upon non-enzymatic glycation of β-casein. In addition, the chaperone activity, micellization properties and antioxidant activity of this protein were altered upon glucose modification...
November 21, 2016: Protein and Peptide Letters
https://www.readbyqxmd.com/read/27900429/highly-selective-sio2-nh2-tio2-hollow-microspheres-for-simultaneous-enrichment-of-phosphopeptides-and-glycopeptides
#3
Dongpo Xu, Guoquan Yan, Mingxia Gao, Chunhui Deng, Xiangmin Zhang
Glycosylation and phosphorylation as the commonest and most important posttranslational modifications of proteins play critical roles in biological processes. Specific and sensitive strategies have been developed to identify the glycosylation and phosphorylation of proteins by mass spectrometry but most of these methods have mainly focused on enriching glycopeptides or phosphopeptides separately, and few of them can enrich both of them. In this work, highly selective SiO2-NH2@TiO2 hollow microspheres were designed and synthesized for the simultaneous selective enrichment of both phosphopeptides and glycopeptides...
November 29, 2016: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/27899804/casein-kinase-2-controls-the-survival-of-normal-thymic-and-leukemic-%C3%AE-%C3%AE-t-cells-via-promotion-of-akt-signaling
#4
S T Ribeiro, M Tesio, J C Ribot, E Macintyre, J T Barata, B Silva-Santos
The thymus is the major site for normal and leukemic T-cell development. The dissection of the molecular determinants of T-cell survival and differentiation is paramount for the manipulation of healthy or transformed T cells in cancer (immuno)therapy. Casein Kinase 2 (CK2) is a serine-threonine protein kinase whose anti-apoptotic functions have been described in various hematological and solid tumors. Here we disclose an unanticipated role of CK2 in healthy human thymocytes that is selective to the γδ T-cell lineage...
November 30, 2016: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/27899104/the-magnitude-of-nephron-number-reduction-mediates-intrauterine-growth-restriction-induced-long-term-chronic-renal-disease-in-the-rat-a-comparative-study-in-two-experimental-models
#5
Farid Boubred, Laurent Daniel, Christophe Buffat, Michel Tsimaratos, Charles Oliver, Martine Lelièvre-Pégorier, Umberto Simeoni
BACKGROUND: Intrauterine growth restriction (IUGR) is a risk factor for hypertension (HT) and chronic renal disease (CRD). A reduction in the nephron number is proposed to be the underlying mechanism; however, the mechanism is debated. The aim of this study was to demonstrate that IUGR-induced HT and CRD are linked to the magnitude of nephron number reduction, independently on its cause. METHODS: Systolic blood pressure (SBP), glomerular filtration rate (GFR), proteinuria, nephron number, and glomerular sclerosis were compared between IUGR offspring prenatally exposed to a maternal low-protein diet (9% casein; LPD offspring) or maternal administration of betamethasone (from E17 to E19; BET offspring) and offspring with a normal birth weight (NBW offspring)...
November 30, 2016: Journal of Translational Medicine
https://www.readbyqxmd.com/read/27890004/lactic-acid-bacteria-as-cell-factories-for-the-generation-of-bioactive-peptides
#6
Lucía Brown, Esteban Vera Pingitore, Fernanda Mozzi, Lucila Saavedra, Josefina M Villegas, Elvira M Hebert
There is a growing interest in the incorporation of functional foods in the daily diet to achieve health promotion and disease risk reduction. Numerous studies have focused on the production of biologically active peptides as nutraceuticals and functional food ingredients due to their health benefits. These short peptides, displaying antihypertensive, antioxidant, mineral binding, immunomodulatory and antimicrobial activities are hidden in a latent state within the primary sequences of food proteins requiring enzymatic proteolysis for their release...
November 23, 2016: Protein and Peptide Letters
https://www.readbyqxmd.com/read/27889122/genome-wide-association-study-for-cheese-yield-and-curd-nutrient-recovery-in-dairy-cows
#7
C Dadousis, S Biffani, C Cipolat-Gotet, E L Nicolazzi, G J M Rosa, D Gianola, A Rossoni, E Santus, G Bittante, A Cecchinato
Cheese production and consumption are increasing in many countries worldwide. As a result, interest has increased in strategies for genetic selection of individuals for technological traits of milk related to cheese yield (CY) in dairy cattle breeding. However, little is known about the genetic background of a cow's ability to produce cheese. Recently, a relatively large panel (1,264 cows) of different measures of individual cow CY and milk nutrient and energy recoveries in the cheese (REC) became available...
November 23, 2016: Journal of Dairy Science
https://www.readbyqxmd.com/read/27888634/targeting-protein-kinase-ck2-suppresses-bladder-cancer-cell-survival-via-the-glucose-metabolic-pathway
#8
Xiaolei Zhang, Xiao Yang, Chengdi Yang, Peng Li, Wenbo Yuan, Xiaheng Deng, Yidong Cheng, Pengchao Li, Haiwei Yang, Jun Tao, Qiang Lu
Casein kinase 2 (CK2) is a constitutively active serine/threonine kinase that promotes cell proliferation and resists apoptosis. Elevated CK2 expression has been demonstrated in several solid tumors. The expression of CK2α in bladder cancer was elevated in tumor tissues compared with that in adjacent normal tissues. Amplified expression of CK2α was highly correlated with histological grade in bladder cancer(P = 0.024). Knockdown of CK2α in bladder cancer cell lines resulted in a reduction in tumor aerobic glycolysis, accompanied with lower phosphorylated AKT...
November 24, 2016: Oncotarget
https://www.readbyqxmd.com/read/27881437/casein-kinase-ii-is-required-for-proper-cell-division-and-acts-as-a-negative-regulator-of-centrosome-duplication-in-c-elegans-embryos
#9
Jeffrey C Medley, Megan M Kabara, Michael D Stubenvoll, Lauren E DeMeyer, Mi Hye Song
Centrosomes are the primary microtubule-organizing centers that orchestrate microtubule dynamics during the cell cycle. The correct number of centrosomes is pivotal for establishing bipolar mitotic spindles that ensure accurate segregation of chromosomes. Thus, centrioles must duplicate once per cell cycle, one daughter per mother centriole, the process of which requires highly coordinated actions among core factors and modulators. Protein phosphorylation is shown to regulate the stability, localization and activity of centrosome proteins...
November 23, 2016: Biology Open
https://www.readbyqxmd.com/read/27876865/increased-gene-dosage-for-%C3%AE-and-%C3%AE%C2%BA-casein-in-transgenic-cattle-improves-milk-composition-through-complex-effects
#10
Götz Laible, Grant Smolenski, Thomas Wheeler, Brigid Brophy
We have previously generated transgenic cattle with additional copies of bovine β- and κ casein genes. An initial characterisation of milk produced with a hormonally induced lactation from these transgenic cows showed an altered milk composition with elevated β-casein levels and twofold increased κ-casein content. Here we report the first in-depth characterisation of the composition of the enriched casein milk that was produced through a natural lactation. We have analyzed milk from the high expressing transgenic line TG3 for milk composition at early, peak, mid and late lactation...
November 23, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27875595/phosphorylation-of-serine-235-of-the-hepatitis-c-virus-non-structural-protein-ns5a-by-multiple-kinases
#11
Kuan-Ying Lee, Yi-Hung Chen, Shih-Chin Hsu, Ming-Jiun Yu
Phosphorylation at serine 235 (S235) of the hepatitis C virus (HCV) non-structural protein 5A (NS5A) plays a critical role in the viral life cycle. For medical and virological interests, we exploited the HEK293T kidney cells to test 3 candidate protein kinases on NS5A S235 phosphorylation. Inhibitors that inhibit casein kinase I α (CKIα), polo-like kinase I (PlKI) or calmodulin-dependent kinase II (CaMKII) all reduced NS5A S235 phosphorylation. CKIα was studied previously and PlKI had severe cytotoxicity, thus CaMKII was selected for validation in the Huh7...
2016: PloS One
https://www.readbyqxmd.com/read/27874833/a-herpesviral-induction-of-rae-1-nkg2d-ligand-expression-occurs-through-release-of-hdac-mediated-repression
#12
Trever T Greene, Maria Tokuyama, Giselle M Knudsen, Michele Kunz, James Lin, Alexander L Greninger, Victor R DeFilippis, Joseph L DeRisi, David H Raulet, Laurent Coscoy
Natural Killer (NK) cells are essential for control of viral infection and cancer. NK cells express NKG2D, an activating receptor that directly recognizes NKG2D ligands. These are expressed at low level on healthy cells, but are induced by stresses like infection and transformation. The physiological events that drive NKG2D ligand expression during infection are still poorly understood. We observed that the mouse cytomegalovirus encoded protein m18 is necessary and sufficient to drive expression of the RAE-1 family of NKG2D ligands...
November 22, 2016: ELife
https://www.readbyqxmd.com/read/27869057/effect-of-dam-weight-and-pregnancy-nutrition-on-average-lactation-performance-of-ewe-offspring-over-5-years
#13
A M Paten, S J Pain, S W Peterson, N Lopez-Villalobos, P R Kenyon, H T Blair
The foetal mammary gland is sensitive to maternal weight and nutrition during gestation, which could affect offspring milk production. It has previously been shown that ewes born to dams offered maintenance nutrition during pregnancy (day 21 to 140 of gestation) produced greater milk, lactose and CP yields in their first lactation when compared with ewes born to dams offered ad libitum nutrition. In addition, ewes born to heavier dams produced greater milk and lactose yields when compared with ewes born to lighter dams...
November 21, 2016: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/27868152/effect-of-buffalo-casein-derived-novel-bioactive-peptides-on-osteoblast-differentiation
#14
Srinu Reddi, Venkatesa Perumal Shanmugam, Kemgang Sonfack Tanedjeu, Suman Kapila, Rajeev Kapila
PURPOSE: Epidemiological and intervention studies show that milk consumption in childhood and during adolescence is related to higher bone mineral density. Milk and milk products prevent the bone loss in pre- and postmenopausal women. Apart from calcium, there are other biologically active compounds in milk such as bioactive peptides which may play a role in promoting bone health. Casein is the major protein in milk which has also been reported to have numerous biological active peptides within it...
November 21, 2016: European Journal of Nutrition
https://www.readbyqxmd.com/read/27868064/shrimp-protein-hydrolysate-modulates-the-timing-of-proinflammatory-macrophages-in-bupivacaine-injured-skeletal-muscles-in-rats
#15
Junio Dort, Nadine Leblanc, Piotr Bryl, Marie-Gil Fortin, Marie-Elise Carbonneau, Charles Lavigne, Hélène Jacques
This study was designed to determine whether marine-derived proteins other than cod could have beneficial effects on inflammation following muscle injury. Macrophage and neutrophil densities were measured from bupivacaine-injured tibialis anterior muscle of rats fed isoenergetic diets containing either shrimp hydrolysate (Shr), casein hydrolysate (CaH), or whole casein (Ca). In this study, Shr reduced ED(1+)-macrophages at day 2 (p = 0.013), day 5 (p = 0.006), and day 14 after injury (p = 0.038) compared with Ca, indicating faster resolution of inflammation in Shr...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27865510/electrophoretic-characterization-of-protein-interactions-suggesting-limited-feasibility-of-accelerated-shelf-life-testing-of-ultra-high-temperature-milk
#16
Manpreet Kaur Grewal, Jayani Chandrapala, Osaana Donkor, Vasso Apostolopoulos, Todor Vasiljevic
Accelerated shelf-life testing is applied to a variety of products to estimate keeping quality over a short period of time. The industry has not been successful in applying this approach to ultra-high temperature (UHT) milk because of chemical and physical changes in the milk proteins that take place during processing and storage. We investigated these protein changes, applying accelerated shelf-life principles to UHT milk samples with different fat levels and using native- and sodium dodecyl sulfate-PAGE. Samples of UHT skim and whole milk were stored at 20, 30, 40, and 50°C for 28 d...
November 16, 2016: Journal of Dairy Science
https://www.readbyqxmd.com/read/27864509/loss-of-%C3%AE-adrenergic-stimulated-phosphorylation-of-cav1-2-channels-on-ser1700-leads-to-heart-failure
#17
Linghai Yang, Dao-Fu Dai, Can Yuan, Ruth E Westenbroek, Haijie Yu, Nastassya West, Horacio O de la Iglesia, William A Catterall
L-type Ca(2+) currents conducted by voltage-gated calcium channel 1.2 (CaV1.2) initiate excitation-contraction coupling in the heart, and altered expression of CaV1.2 causes heart failure in mice. Here we show unexpectedly that reducing β-adrenergic regulation of CaV1.2 channels by mutation of a single PKA site, Ser1700, in the proximal C-terminal domain causes reduced contractile function, cardiac hypertrophy, and heart failure without changes in expression, localization, or function of the CaV1.2 protein in the mutant mice (SA mice)...
November 18, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27864058/a-novel-alkaline-surfactant-stable-keratinase-with-superior-feather-degrading-potential-based-on-library-screening-strategy
#18
Chang Su, Jin-Song Gong, Rong-Xian Zhang, Li-Yan Tao, Wen-Fang Dou, Dan-Dan Zhang, Heng Li, Zhen-Ming Lu, Zheng-Hong Xu, Jin-Song Shi
A novel keratinase was mined and expressed in Escherichia coli BL21 (DE3) via function-driven screening with fosmid library. The catalytic properties of purified keratinase were investigated in detail following enzyme purification. The recombinant keratinase was purified to homogeneity with an estimated molecular weight of 26kDa using nickel affinity chromatography, of which the optimal reaction pH and temperature were 10.0 and 55°C, respectively. It could remain stable at pH 5.0-12.0 and 40-60°C. Metal ions such as Ca(2+), Mn(2+), Ag(+), Na(+), Mg(2+), Li(+), Sn(2+) (1mM) displayed positive influence on keratinase, and particularly, Ca(2+) exhibited remarkable improvement effect by 2...
November 15, 2016: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/27862398/milk-protein-responses-to-balanced-amino-acid-and-removal-of-leucine-and-arginine-supplied-from-jugular-infused-amino-acid-mixture-in-lactating-dairy-cows
#19
W Tian, H R Wang, T Y Wu, L Y Ding, R Zhao, E Khas, C F Wang, F Q Zhang, F Y Mi, L Wang, L T Ning
This study was undertaken to evaluate the milk protein response when cows were supplied a balanced AA profile and to determine whether a deficiency of Leucine (Leu) or Arginine (Arg) had a negative effect on milk protein. Eight mid-lactation Holstein cows were randomly assigned to 5-day continuous jugular infusions of saline (CTL), EAA mixture prepared on the profile of casein and supplied (in % of lysine (Lys)) 100% of Lys, 33.3% of methionine (Met), 110.2% of Leu, 43.6% of Arg, 50.8% of threonine (Thr), 81...
November 13, 2016: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/27858298/off-on-red-emitting-fluorescent-probes-for-casein-recognition-and-quantification-based-on-indolium-derivatives
#20
Wei Yang, Chunlin Liu, Qingyun Gao, Jinya Du, Ping Shen, Changying Yang
Five derivatives of 2, 3, 3-trimethyl-3H-indolium containing different electron donor groups (H1 - H5) were synthesized for the determination of proteins. H3, a sensitive red-emitting fluorescent probe, was found for the discrimination of hydrophobic proteins from hydrophilic. The OFF - ON fluorescence switch of H3 was caused by the formation of twisted intramolecular charge-transfer (TICT) state when it combined with hydrophobic proteins in aqueous buffer. There was a good linear relationship between the emission intensity of H3 and the casein concentration (r = 0...
November 17, 2016: Journal of Fluorescence
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