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https://www.readbyqxmd.com/read/29033852/activation-of-casein-kinase-ii-by-gallic-acid-induces-bik-bax-bak-mediated-er-ca-ros-dependent-apoptosis-of-human-oral-cancer-cells
#1
Meng-Liang Lin, Shih-Shun Chen
Induction of the generation of endoplasmic reticulum (ER) calcium (Ca(++))-mediated reactive oxygen species (ROS) by gallic acid (GA) has been implicated in the mitochondrial apoptotic death of human oral cancer (OC) cells, but the molecular mechanism by which GA causes ER Ca(++) release of OC cells to undergo cell death remains unclear. Here, we report that GA-induced phosphorylation of B-cell lymphoma 2 (BCL-2)-interacting killer (BIK) (threonine (Thr) 33/Serine (Ser) 35) and p53 (Ser 15 and Ser 392), Bcl-2-associated x protein (BAX)/BCL-2 antagonist killer 1 (BAK) oligomerization on the ER and mitochondria, rising of cytosolic Ca(+)(+) and ROS, cytochrome c (Cyt c) release from the mitochondria, Ψm loss, and apoptosis were suppressed in cells co-treated with a specific inhibitor of casein kinase II (CK II) (4,5,6,7-tetrabromobenzotriazole)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29031723/inhibition-of-cholinergic-potentiation-of-insulin-secretion-from-pancreatic-islets-by-chronic-elevation-of-glucose-and-fatty-acids-protection-by-casein-kinase-2-inhibitor
#2
Nicolai M Doliba, Qin Liu, Changhong Li, Pan Chen, Chengyang Liu, Ali Naji, Franz M Matschinsky
OBJECTIVES: Chronic hyperlipidemia and hyperglycemia are characteristic features of type 2 diabetes (T2DM) that are thought to cause or contribute to β-cell dysfunction by "glucolipotoxicity." Previously we have shown that acute treatment of pancreatic islets with fatty acids (FA) decreases acetylcholine-potentiated insulin secretion. This acetylcholine response is mediated by M3 muscarinic receptors, which play a key role in regulating β-cell function. Here we examine whether chronic FA exposure also inhibits acetylcholine-potentiated insulin secretion using mouse and human islets...
October 2017: Molecular Metabolism
https://www.readbyqxmd.com/read/29030561/oxidative-and-anti-oxidative-status-in-muscle-of-young-rats-in-response-to-six-protein-diets
#3
Jing Zhu, Xiao Li, Hao Qi, Zetong Gu, Shangxin Song, Xiangli Yang, Guanghong Zhou, Chunbao Li
We investigated the impact of six protein diets on oxidation and anti-oxidation status in the muscle of young rats. Rats were fed six protein diets for 14 days, including casein (control), and proteins isolated from soy, fish, chicken, pork and beef. Grx1, Trx1 and other oxidative metabolic indices in muscle were quantified. Compared with the casein diet, the soy protein diet had a similar oxidation level, but higher GSH and lower SOD activities. The chicken and fish protein groups had lower GSH and higher SOD activities, the pork protein group showed lower Grx1 levels than the casein group and the beef protein group showed the highest GSH, Grx1 and Trx1 levels as reflected by RT-PCR, Western blotting and immunohistochemistry analyses...
October 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29026733/safety-of-a-new-synbiotic-starter-formula
#4
Yvan Vandenplas, Antonis Analitis, Chara Tziouvara, Athina Kountzoglou, Anastasia Drakou, Manos Tsouvalas, Antigoni Mavroudi, Ioannis Xinias
PURPOSE: Breastfeeding is the best way to feed all infants, but not all infants can be (exclusively) breastfed. Cow's milk based infant formula is the second choice infant feeding. METHODS: The safety of a new synbiotic infant formula, supplemented with Bifidobacterium lactis and fructo-oligosaccharides, with lactose and a whey/casein 60/40 protein ratio was tested in 280 infants during 3 months. RESULTS: The median age of the infants at inclusion was 0...
September 2017: Pediatric Gastroenterology, Hepatology & Nutrition
https://www.readbyqxmd.com/read/29023621/bond-strength-of-self-adhering-materials-effect-of-dentin-desensitizing-treatment-with-a-cpp-acp-paste
#5
Fereshteh Shafiei, Reza Derafshi, Mahtab Memarpour
This study investigated the effect of dentin-desensitizing treatment with a casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) paste on shear bond strength (SBS) of two types of self-adhering (SA) restorative materials: resin-modified glass-ionomer (Fuji II LC, GC) and self-adhering flowable composite resin (Vertise Flow, Kerr). Flat and smear layer-free dentin surfaces from 48 extracted molars were prepared and divided into four groups (n = 12 per group) according to Fuji II LC or Vertise Flow and CPP-ACP pretreatment or not...
November 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29023467/dietary-lactoferrin-supplementation-to-gilts-during-gestation-and-lactation-improves-pig-production-and-immunity
#6
Marefa Jahan, Susie Kracht, Yen Ho, Ziaul Haque, Birendra N Bhattachatyya, Peter C Wynn, Bing Wang
Lactoferrin (LF), a sialylated iron-binding glycoprotein, performs multiple beneficial functions including modulating immunity and improves neurodevelopment, health and growth performance. Maternal LF intervention for gilts (first parity sows) on the performance of gilts and their offspring remains unknown. In the current study gilts were fed with a commercial pig feed supplemented with 1g LF /day (treatment group) or 1g milk casein/day (control group) from day 1 post mating throughout pregnancy and lactation for about 135 days...
2017: PloS One
https://www.readbyqxmd.com/read/29021227/physiological-regulation-of-the-epithelial-na-channel-by-casein-kinase-ii
#7
Jonathan M Berman, Elena Mironova, James D Stockand
The Epithelial Na+ Channel, ENaC, is the final arbiter of sodium excretion in the kidneys. As such, discretionary control of ENaC by hormones is critical to the fine-tuning of electrolyte and water excretion and consequently, blood pressure. Casein kinase 2 (CK2) phosphorylates ENaC. Phosphorylation by CK2 is necessary for normal ENaC activity. We tested the physiological importance of CK2 regulation of ENaC as the degree to which ENaC activity is dependent on CK2 phosphorylation in the living organism is unknown...
October 11, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/29021214/casein-kinase-ii-phosphorylation-of-cyclin-f-at-serine-621-regulates-the-lys48-ubiquitylation-e3-ligase-activity-of-the-scf-cyclin-f-complex
#8
Albert Lee, Stephanie L Rayner, Alana De Luca, Serene S L Gwee, Marco Morsch, Vinod Sundaramoorthy, Hamideh Shahheydari, Audrey Ragagnin, Bingyang Shi, Shu Yang, Kelly L Williams, Emily K Don, Adam K Walker, Katharine Y Zhang, Justin J Yerbury, Nicholas J Cole, Julie D Atkin, Ian P Blair, Mark P Molloy, Roger S Chung
Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disorder that is characterized by progressive weakness, paralysis and muscle loss often resulting in patient death within 3-5 years of diagnosis. Recently, we identified disease-linked mutations in the CCNF gene, which encodes the cyclin F protein, in cohorts of patients with familial and sporadic ALS and frontotemporal dementia (FTD) (Williams KL et al 2016 Nat. Commun.7, 11253. (doi:10.1038/ncomms11253)). Cyclin F is a part of a Skp1-Cul-F-box (SCF) E3 ubiquitin-protein ligase complex and is responsible for ubiquitylating proteins for degradation by the proteasome...
October 2017: Open Biology
https://www.readbyqxmd.com/read/28994453/effects-of-two-different-domestic-boiling-practices-on-the-allergenicity-of-cow-milk-proteins
#9
Cristina Lamberti, Cristina Baro, Marzia Giribaldi, Lorenzo Napolitano, Laura Cavallarin, Maria Gabriella Giuffrida
BACKGROUND: the sale of raw drinking milk through automatic dispensers is permitted in some European Member States, but consumers are usually advised to boil the milk before consumption. The present study has been conducted to evaluate the effects of two common domestic boiling techniques on the proteins of raw milk, and, in particular, on their potential allergenicity. RESULTS: Native 1-D electrophoresis, N-terminal amino acid sequencing and immunoblotting have been used to characterize the protein pattern, and to evaluate the possible changes in the allergenic properties of the processed milk...
October 10, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28994305/plant-homeodomain-finger-protein-2-as-a-novel-ikaros-target-in-acute-lymphoblastic-leukemia
#10
Zheng Ge, Yan Gu, Qi Han, Justin Sloane, Qinyu Ge, Goufeng Gao, Jinlong Ma, Huihui Song, Jiaojiao Hu, Baoan Chen, Sinisa Dovat, Chunhua Song
AIM: Clinical significance of plant homeodomain finger 2 (PHF2) expressions is explored in acute lymphoblastic leukemia (ALL) patients. METHODS: mRNA level was examined by qPCR. The retroviral gene expression, shRNA knockdown and chromatin-immunoprecipitation are used to observe IKAROS regulation on PHF2 transcription. RESULTS: PHF2 expression is significantly reduced in subsets of ALL patients, and PHF2 (low) expression correlates with leukemia cell proliferation and an elevation of several poor prognostic markers in B-cell ALL...
October 10, 2017: Epigenomics
https://www.readbyqxmd.com/read/28993724/plpp-cin-regulates-seizure-activity-by-the-differential-modulation-of-calsenilin-binding-to-glun1-and-kv4-2-in-mice
#11
Ji-Eun Kim, Hye-Won Hyun, Su-Ji Min, Duk-Shin Lee, A Ran Jeon, Min Ju Kim, Tae-Cheon Kang
Calsenilin (CSEN) binds to Kv4.2 (an A-type K(+) channel) as well as N-methyl-D-aspartate receptor (NMDAR), and modulates their activities. However, the regulatory mechanisms for CSEN-binding to Kv4.2 or NMDAR remain elusive. Here, we demonstrate the novel role of pyridoxal-5'-phosphate phosphatase/chronophin (PLPP/CIN), one of the cofilin-mediated F-actin regulators, in the CSEN binding to Kv4.2 or GluN1 (an NMDAR subunit). PLPP/CIN dephosphorylated CSEN in competition with casein kinase 1, independent of cofilin dephosphorylation...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28993142/ghrelin-upregulates-the-phosphorylation-of-the-glun2b-subunit-of-the-nmda-receptor-by-activating-ghsr1a-and-fyn-in-the-rat-hippocampus
#12
Liza Berrout, Masako Isokawa
Ghrelin and its receptor GHSR1a have been shown to exert numerous physiological functions in the brain, in addition to the well-established orexigenic role in the hypothalamus. Earlier work indicated that ghrelin stimulated the phosphorylation of the GluN1 subunit of the NMDA receptor (NMDAR) and enhanced synaptic transmission in the hippocampus. In the present study, we report that the exogenous application of ghrelin increased GluN2B phosphorylation. This increase was independent of GluN2B subunit activity or NMDAR channel activity...
October 6, 2017: Brain Research
https://www.readbyqxmd.com/read/28992316/phosphorylation-of-cbx2-controls-its-nucleosome-binding-specificity
#13
Takayuki Kawaguchi, Shinichi Machida, Hitoshi Kurumizaka, Hideaki Tagami, Jun-Ichi Nakayama
Chromobox 2 (CBX2), a component of polycomb repressive complex 1 (PRC1), binds lysine 27-methylated histone H3 (H3K27me3) via its chromodomain (CD) and plays a critical role in repressing developmentally regulated genes. The phosphorylation of CBX2 has been described in several studies, but the biological implications of this modification remain largely elusive. Here, we show that CBX2's phosphorylation plays an important role in its nucleosome binding. CBX2 is stably phosphorylated in vivo, and domain analysis showed that residues in CBX2's serine-rich (SR) region are the predominant phosphorylation sites...
June 16, 2017: Journal of Biochemistry
https://www.readbyqxmd.com/read/28988058/the-down-regulation-of-casein-kinase-1-alpha-as-a-host-defense-response-against-infectious-bursal-disease-virus-infection
#14
Lizhou Zhang, Hui Li, Yuming Chen, Xiang Gao, Zhen Lu, Li Gao, Yongqiang Wang, Yulong Gao, Honglei Gao, Changjun Liu, Hongyu Cui, Yanping Zhang, Qing Pan, Xiaole Qi, Xiaomei Wang
Infectious bursal disease virus (IBDV) is an important immunosuppressive virus of chickens. Although the gene functions of IBDV have been well characterized, the host responses during IBDV infection remain much poor. In the present study, casein kinase 1 alpha (CK1α), a novel VP2-associated protein, was down-regulated during IBDV replication in DF1 cells. Further experiments showed that siRNA-mediated knockdown of CK1α inhibited IBDV replication, while overexpression of CK1α promoted IBDV growth. Finally, we revealed that the effects of CK1α expression level on IBDV replication were involved in the negative regulation of CK1α on type I interferon receptor (IFNAR1), because ubiquitination assay analyses demonstrated that CK1α could promote the ubiquitination of IFNAR1, thereby affecting the stability of this receptor...
October 4, 2017: Virology
https://www.readbyqxmd.com/read/28987277/identification-and-characterization-of-an-angiotensin-converting-enzyme-inhibitory-peptide-derived-from-bovine-casein
#15
Lu Xue, Xiaodan Wang, Zhihe Hu, Zijian Wu, Lijuan Wang, Hui Wang, Ming Yang
In this study, we identified a novel angiotensin-I-converting enzyme (ACE) inhibitory peptide, YQKFPQYLQY (YQK), derived from bovine casein. Casein was hydrolyzed using pepsin and trypsin. The target peptide, YQK, was separated from the hydrolysate by ultrafiltration and Sephadex G-15chromatography. The IC50 value of YQK was 11.1μM. YQK retained its ACE inhibitory activity under various temperature and pH conditions. It was also stable against the digestive enzymes pepsin and trypsin. The Lineweaver-Burk plot suggested that the inhibitory mode of YQK was competitive...
October 4, 2017: Peptides
https://www.readbyqxmd.com/read/28987248/the-effect-of-mipaste-plus-and-reminpro-on-incipient-caries-using-diagnodent-and-sem-an-invitro-study
#16
Bassir Leila, Saeid Nemati, Hajalizadeh Neda, Mashallah Khanehmasjedi
BACKGROUND: The remineralization of early caries lesion has an effective role on decreasing caries. For initial remineralization of caries lesion, using Compounds of Casein phosphopeptides (CPP) in different studies has been proposed. REMINPRO including Fluoride, Xylitol and Calcium phosphate has just been offered in the market. This study aims to investigate the efficacy of Reminpro and MI paste plus in terms of remineralization of early enamel lesions. MATERIALS AND METHODS: In 15 samples of healthy enamels of the maxillary first premolar teeth and 15 samples of Primary Mandibular First Molar under the effect of demineralized gel, artificial caries has been created...
2017: Journal of the National Medical Association
https://www.readbyqxmd.com/read/28984758/expression-of-matrix-metalloproteinases-12-in-st-segment-elevation-myocardial-infarction-a-case-control-study
#17
Jing Wang, Guoqing Wei, Wei Hu, Linhua Li, Yujia Ye, Huawei Wang, Wen Wan, Rui Li, Longjun Li, Linling Ma, Zhaohui Meng
Matrix metalloproteinases-12 (MMP12) can lead to degradation of elastin resulting in plaque destabilization and rupture. MMP12 also facilitates platelet aggregation, adhesion, and granule secretion. However, evidence in the literature related to the function of MMP12 in ST-segment elevation myocardial infarction (STEMI) is little. This study investigated the expression of MMP12 in human coronary thrombus and examined the relationship between plasma MMP12 and STEMI.Arterial plasma was obtained from 46 STEMI patients and 52 stable angina pectoris (SAP) patients and 30 controls with angiographically normal coronary arteries...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28984571/characterization-of-marinomonas-algicida-sp-nov-a-novel-algicidal-marine-bacterium-isolated-from-seawater
#18
Sylvia Kristyanto, Dhiraj Kumar Chaudhary, Sang-Seob Lee, Jaisoo Kim
A novel Marinomonas-like, aerobic, Gram-reaction-negative, moderately halophilic, acidophilic, motile by a single polar flagellum, non-spore-forming, rod-shaped bacterium that showed algalytic activity, designated strain Yeongu 1-4(T), was isolated from surface seawater of Geoje Island in the South Sea, Republic of Korea. The strain was oxidase-negative and weakly positive for catalase. Growth of this bacterium was observed at temperatures from 4 to 42 °C, at salinities from 0 to 12 % and at pH from 4...
October 6, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28984558/porphyrobacter-algicida-sp-nov-an-algalytic-bacterium-isolated-from-seawater
#19
Sylvia Kristyanto, Sang Don Lee, Jaisoo Kim
A novel Gram-stain-negative, yellow-pigmented, catalase- and oxidase-positive, non-endospore-forming, flagellated bacterium, designated strain Yeonmyeong 2-22(T), was isolated from surface seawater of Geoje Island, Republic of Korea. Strain Yeonmyeong 2-22(T) showed algalytic activity against the seven strains tested: Cochlodinium polykrikoides, Chattonella marina, Heterosigma akashiwo, Scrippsiella trochoidea, Heterocapsa triquetra, Prorocentrum minimum and Skeletonema costatum. A taxonomic study was carried out based on a polyphasic approach to characterize the exact taxonomic position of strain Yeonmyeong 2-22(T)...
October 6, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28981265/solid-in-oil-in-water-emulsions-for-delivery-of-lactase-to-control-in-vitro-hydrolysis-of-lactose-in-milk
#20
Yun Zhang, Qixin Zhong
There is an established need to deliver lactase in milk to retain activity during storage and hydrolyze lactose after ingestion. In the present work, spray-dried lactase powder was encapsulated in solid-in-oil-in-water (S/O/W) emulsions to fabricate delivery systems. The adoption of Span® 80 in milk fat and lecithin in protein solution enabled the encapsulation of ~76% lactase and droplets smaller than 400 nm. Additional cross-linking proteins on droplets by transglutaminase and addition of sodium caseinate effectively reduced the amount of free lactase after spray drying emulsions...
October 5, 2017: Journal of Agricultural and Food Chemistry
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