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https://www.readbyqxmd.com/read/28822799/effect-of-application-sequence-of-fluoride-and-cpp-acp-on-remineralization-of-white-spot-lesions-in-primary-teeth-an-in-vitro-study
#1
Ola B Al-Batayneh, Reem A Jbarat, Susan N Al-Khateeb
OBJECTIVE: To explore how application sequence of casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) and fluoride influences remineralization of enamel white spot lesions (WSL) in primary teeth. DESIGN: In this in-vitro study, artificial WSLs were created in 130 primary teeth. Teeth were divided into 4 groups (n=27) and a control group (n=22) and exposed to one of the following remineralization regimens for 10 weeks: Group-1; 500ppm fluoride dentifrice; Group-2; 10% w/v CPP-ACP; Group-3; fluoride applied first, then CPP-ACP; Group-4; CPP-ACP applied first, then fluoride, and Group-5 was control...
August 10, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28820392/orally-administered-angiotensin-converting-enzyme-inhibitors-captopril-and-isoleucine-proline-proline-have-distinct-effects-on-local-renin-angiotensin-system-and-corticosterone-synthesis-in-dextran-sulfate-sodium-induced-colitis-in-mice
#2
H Salmenkari, M Holappa, R A Forsgard, R Korpela, H Vapaatalo
The effects of angiotensin-converting enzyme (ACE) inhibition by an antihypertensive drug, captopril, and milk casein-derived ACE-inhibiting bioactive tripeptide isoleucine-proline-proline (Ile-Pro-Pro), on local renin-angiotensin system (RAS) and glucocorticoid production in the intestine were studied in the dextran sodium sulfate induced colitis in mice. Mice received water or 3% dextran sodium sulfate with or without either 15.7 mg/l captopril or 833 mg/l Ile-Pro-Pro for 7 days. Captopril and Ile-Pro-Pro were found to have distinct effects on local renin-angiotensin system and mRNA expression of glucocorticoid synthesis components in colon in vitro...
June 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28812326/effect-of-dietary-components-from-antarctic-krill-on-atherosclerosis-in-apoe-deficient-mice
#3
Cinzia Parolini, Bodil Bjorndal, Marco Busnelli, Stefano Manzini, Giulia S Ganzetti, Federica Dellera, Marie Ramsvik, Inge Bruheim, Rolf Kristian Berge, Giulia Chiesa
SCOPE: Antarctic krill is a great source of n-3 fatty acids and high-quality proteins. Aim of the study was to evaluate the effect of Antarctic krill components on plasma lipids and atherosclerosis development. METHODS AND RESULTS: Sixty apoEKO mice were divided into four groups and fed Western diet (CONTROL) or Western-like diets, differing for protein or fat content. Specifically, casein or fat in CONTROL was partially replaced by krill proteins (PRO), krill oil (KRILL OIL), or both (KRILL OIL+PRO)...
August 15, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28808808/ketogenic-diet-versus-gluten-free-casein-free-diet-in-autistic-children-a-case-control-study
#4
Omnia El-Rashidy, Farida El-Baz, Yasmin El-Gendy, Randa Khalaf, Dina Reda, Khaled Saad
Many diet regimens were studied for patients with autism spectrum disorder (ASD) over the past few years. Ketogenic diet is gaining attention due to its proven effect on neurological conditions like epilepsy in children. Forty-five children aged 3-8 years diagnosed with ASD based on DSM-5 criteria were enrolled in this study. Patients were equally divided into 3 groups, first group received ketogenic diet as modified Atkins diet (MAD), second group received gluten free casein free (GFCF) diet and the third group received balanced nutrition and served as a control group...
August 14, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28808129/gene-duplication-in-pseudomonas-aeruginosa-improves-growth-on-adenosine
#5
Jean-Paul Toussaint, Anna Farrell-Sherman, Tamar Perla Feldman, Nicole E Smalley, Amy L Schaefer, E Peter Greenberg, Ajai A Dandekar
The laboratory strain of Pseudomonas aeruginosa, PAO1, activates genes for catabolism of adenosine using quorum sensing (QS). However, this strain is not well-adapted for growth on adenosine, with doubling times greater than 40 h. We previously showed that when PAO1 is grown on adenosine and casein, variants emerge that grow rapidly on adenosine. To understand the mechanism by which this adaptation occurs, we performed whole-genome sequencing of five isolates evolved for rapid growth on adenosine. All five genomes had a gene duplication-amplification (GDA) event covering several genes, including the quorum-regulated nucleoside hydrolase, nuh, and an adenine deaminase encoded by PA0148...
August 14, 2017: Journal of Bacteriology
https://www.readbyqxmd.com/read/28804941/proteomic-analysis-to-unravel-the-effect-of-heat-stress-on-gene-expression-and-milk-synthesis-in-bovine-mammary-epithelial-cells
#6
Lian Li, Yiru Wang, Chengmin Li, Genlin Wang
Heat stress can play a negative effect on milk yield and composition of dairy cattle, leading to immeasurable economic loss. The basic components of the mammary gland are the alveoli; these alveolar mammary epithelial cells reflect the milk producing ability of dairy cows. In this study, we exposed bovine mammary epithelial cells to heat stress and compared them to a control group using isobaric tags for relative and absolute quantitation combined with liquid chromatography coupled with tandem mass spectrometry...
August 14, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28802794/a-novel-and-organic-solvent-free-preparation-of-solid-lipid-nanoparticles-using-natural-biopolymers-as-natural-emulsifier-and-stabilizer
#7
Jingyi Xue, Taoran Wang, Qiaobin Hu, Mingyong Zhou, Yangchao Luo
In this work, a new and novel organic solvent-free and synthetic surfactant-free method was reported to fabricate stable solid lipid nanoparticles (SLNs) from stearic acid, sodium caseinate (NaCas) and pectin, as well as water. Melted stearic acid was directly emulsified into an aqueous phase containing NaCas and pectin, followed by pH adjustment and thermal treatment to induce the formation of a compact and dense polymeric coating which stabilized SLNs. The preparation procedures and formulations were comprehensively optimized...
August 9, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28798962/structural-pathway-of-regulated-substrate-transfer-and-threading-through-an-hsp100-disaggregase
#8
Célia Deville, Marta Carroni, Kamila B Franke, Maya Topf, Bernd Bukau, Axel Mogk, Helen R Saibil
Refolding aggregated proteins is essential in combating cellular proteotoxic stress. Together with Hsp70, Hsp100 chaperones, including Escherichia coli ClpB, form a powerful disaggregation machine that threads aggregated polypeptides through the central pore of tandem adenosine triphosphatase (ATPase) rings. To visualize protein disaggregation, we determined cryo-electron microscopy structures of inactive and substrate-bound ClpB in the presence of adenosine 5'-O-(3-thiotriphosphate), revealing closed AAA+ rings with a pronounced seam...
August 2017: Science Advances
https://www.readbyqxmd.com/read/28798733/beef-chicken-and-soy-proteins-in-diets-induce-different-gut-microbiota-and-metabolites-in-rats
#9
Yingying Zhu, Xuebin Shi, Xisha Lin, Keping Ye, Xinglian Xu, Chunbao Li, Guanghong Zhou
Previous studies have paid much attention to the associations between high intake of meat and host health. Our previous study showed that the intake of meat proteins can maintain a more balanced composition of gut bacteria as compared to soy protein diet. However, the associations between dietary protein source, gut bacteria, and host health were still unclear. In this study, we collected colonic contents from the growing rats fed with casein, beef, chicken or soy proteins for 90 days, and analyzed the compositions of gut microbiota and metabolites...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28798693/phosphorylation-modulates-ameloblastin-self-assembly-and-ca-2-binding
#10
Øystein Stakkestad, Ståle P Lyngstadaas, Bernd Thiede, Jiri Vondrasek, Bjørn S Skålhegg, Janne E Reseland
Ameloblastin (AMBN), an important component of the self-assembled enamel extra cellular matrix, contains several in silico predicted phosphorylation sites. However, to what extent these sites actually are phosphorylated and the possible effects of such post-translational modifications are still largely unknown. Here we report on in vitro experiments aimed at investigating what sites in AMBN are phosphorylated by casein kinase 2 (CK2) and protein kinase A (PKA) and the impact such phosphorylation has on self-assembly and calcium binding...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28797931/changes-in-the-gut-microbial-communities-following-addition-of-walnuts-to-the-diet
#11
Lauri O Byerley, Derrick Samuelson, Eugene Blanchard, Meng Luo, Brittany N Lorenzen, Shelia Banks, Monica A Ponder, David A Welsh, Christopher M Taylor
Walnuts are rich in omega-3 fatty acids, phytochemicals and antioxidants making them unique compared to other foods. Consuming walnuts has been associated with health benefits including a reduced risk of heart disease and cancer. Dysbiosis of the gut microbiome has been linked to several chronic diseases. One potential mechanism by which walnuts may exert their health benefit is through modifying the gut microbiome. This study identified the changes in the gut microbial communities that occur following the inclusion of walnuts in the diet...
July 9, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28794211/dietary-whole-egg-consumption-attenuates-body-weight-gain-and-is-more-effective-than-supplemental-cholecalciferol-in-maintaining-vitamin-d-balance-in-type-2-diabetic-rats
#12
Cassondra J Saande, Samantha K Jones, Kaylee E Hahn, Carter H Reed, Matthew J Rowling, Kevin L Schalinske
Background: Type 2 diabetes (T2D) is characterized by vitamin D insufficiency owing to excessive urinary loss of 25-hydroxycholecalciferol [25(OH)D]. We previously reported that a diet containing dried whole egg, a rich source of vitamin D, was effective at maintaining circulating 25(OH)D concentrations in rats with T2D. Furthermore, whole egg consumption reduced body weight gain in rats with T2D.Objective: This study was conducted to compare whole egg consumption with supplemental cholecalciferol with respect to vitamin D balance, weight gain, and body composition in rats with T2D...
August 9, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28793293/triggering-of-eryptosis-the-suicidal-erythrocyte-death-by-mammalian-target-of-rapamycin-mtor-inhibitor-temsirolimus
#13
Abdulla Al Mamun Bhuyan, Hang Cao, Florian Lang
BACKGROUND/AIMS: The mammalian target of rapamycin (mTOR) inhibitor temsirolimus is utilized for the treatment of malignancy. Temsirolimus is at least in part effective by triggering suicidal tumor cell death. The most common side effect of temsirolimus treatment is anemia. At least in theory, the anemia following temsirolimus treatment could result from stimulation of eryptosis, the suicidal erythrocyte death. Hallmarks of eryptosis include cell shrinkage and cell membrane scrambling with phosphatidylserine translocation to the erythrocyte surface...
July 24, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28791512/purification-of-angiotensin-i-converting-enzyme-ace-inhibitory-peptides-from-casein-hydrolysate-by-imac-ni-2
#14
Shanguang Wu, Xuezhen Feng, Yuan Lu, Yuting Lu, Saisai Liu, Yuhong Tian
Casein proteins were hydrolyzed by papain to identify inhibitory peptides of angiotensin I-converting enzyme (ACE). The hydrolysate was fractionized by immobilized metal affinity chromatography (IMAC-Ni(2+)). The fraction with high ACE inhibitory activity was enriched and further chromatographed on a reverse-phase column to yield four fractions. Among the fractions, the L4 fraction exhibited the highest ACE inhibitory activity and was identified by sequence analysis as Trp-Tyr-Leu-His-Tyr-Ala (WYLHYA), with IC50 value of 16...
August 8, 2017: Amino Acids
https://www.readbyqxmd.com/read/28791381/protective-effect-of-diminazene-attenuates-myocardial-infarction-in-rats-via-increased-inflammation-and-ace2-activity
#15
Junjiang Chen, Lianqun Cui, Jingliang Yuan, Songcun Zhang, Rongmei Ma, Hongjun Sang, Qingjiang Liu, Lianfeng Shan
The present study aimed to investigate whether diminazene attenuates myocardial infarction (MI) in rats. In addition, the present study investigated whether ACE2 signaling was involved in the effects of diminazene on protein function. A rat model of acute myocardial infarction (AMI) was established by occlusion of the left anterior descending coronary artery. The AMI model rats received intraperitoneal injections of diminazene (5 mg/kg/day) for 3 days. Treatment with diminazene significantly inhibited the expression of casein kinase and lactate dehydrogenase, and reduced infarct size in AMI rats...
August 3, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28791293/differential-effects-of-high-protein-diets-derived-from-soy-and-casein-on-blood-brain-barrier-integrity-in-wild-type-mice
#16
Matthew Snelson, John C L Mamo, Virginie Lam, Corey Giles, Ryusuke Takechi
A number of studies report that a diet high in protein influences cognitive performance, but the results are inconsistent. Studies demonstrated that protein from different food sources has differential effects on cognition. It is increasingly recognized that the integrity of cerebrovascular blood-brain barrier (BBB) is pivotal for central nervous system function. However, to date, no studies have reported the effects of high-protein diets on BBB integrity. Therefore, in this study, the effects of diets enriched in casein or soy protein on BBB permeability were investigated...
2017: Frontiers in Nutrition
https://www.readbyqxmd.com/read/28783130/shear-bond-strength-and-remineralisation-effect-of-a-casein-phosphopeptide-amorphous-calcium-phosphate-modified-glass-ionomer-cement-on-artificial-caries-affected-dentine
#17
Irene Shuping Zhao, May Lei Mei, Zhuo Long Zhou, Michael Francis Burrow, Edward Chin-Man Lo, Chun-Hung Chu
This study investigated the effect of casein phosphopeptide-amorphous calcium phosphate (CPP-ACP)-modified glass ionomer cement (GIC) on shear bond strength (SBS) and remineralisation of artificial "caries-affected" dentine. Human dentine slices were demineralised and allocated to three groups: group 1, conventional GIC; group 2, CPP-ACP-modified GIC; and group 3, resin-modified GIC. The SBS was measured using a universal testing machine (n = 16 per group). Remaining samples (n = 8 per group) were subjected to pH-cycling for 28 days...
August 7, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28783066/utility-of-milk-coagulant-enzyme-of-moringa-oleifera-seed-in-cheese-production-from-soy-and-skim-milks
#18
María Alejandra Sánchez-Muñoz, Mónica Andrea Valdez-Solana, Claudia Avitia-Domínguez, Patricia Ramírez-Baca, María Guadalupe Candelas-Cadillo, Miguel Aguilera-Ortíz, Jorge Armando Meza-Velázquez, Alfredo Téllez-Valencia, Erick Sierra-Campos
In this study, the potential use of Moringa oleifera as a clotting agent of different types of milk (whole, skim, and soy milk) was investigated. M. oleifera seed extract showed high milk-clotting activity followed by flower extract. Specific clotting activity of seed extract was 200 times higher than that of flower extract. Seed extract is composed by four main protein bands (43.6, 32.2, 19.4, and 16.3 kDa). Caseinolytic activity assessed by sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE) and tyrosine quantification, showed a high extent of casein degradation using M...
August 5, 2017: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28782917/dairy-attenuates-weight-gain-to-a-similar-extent-as-exercise-in-rats-fed-a-high-fat-high-sugar-diet
#19
Sarah K Trottier, Rebecca E K MacPherson, Carly M Knuth, Logan K Townsend, Willem T Peppler, John S Mikhaeil, Cam F Leveille, Paul J LeBlanc, Jane Shearer, Raylene A Reimer, David C Wright
OBJECTIVE: To compare the individual and combined effects of dairy and endurance exercise training in reducing weight gain and adiposity in a rodent model of diet-induced obesity. METHODS: An 8-week feeding intervention of a high-fat, high-sugar diet was used to induce obesity in male Sprague-Dawley rats. Rats were then assigned to one of four groups for 6 weeks: (1) casein sedentary (casein-S), (2) casein exercise (casein-E), (3) dairy sedentary (dairy-S), and (4) dairy exercise (dairy-E)...
August 7, 2017: Obesity
https://www.readbyqxmd.com/read/28780347/nanoscale-observation-of-the-natural-structure-of-milk-fat-globules-and-casein-micelles-in-the-liquid-condition-using-a-scanning-electron-assisted-dielectric-microscopy
#20
Toshihiko Ogura, Tomoko Okada
Recently, aqueous nanoparticles have been used in drug-delivery systems for new type medicines. In particular, milk-casein micelles have been used as drug nanocarriers for targeting cancer cells. Therefore, nanostructure observation of particles and micelles in their native liquid condition is indispensable for analysing their function and mechanisms. However, traditional optical and scanning electron microscopy have difficulty observing the nanostructures of aqueous micelles. Recently, we developed a novel imaging technique called scanning electron-assisted dielectric microscopy (SE-ADM) that enables observation of various biological specimens in water with very little radiation damage and high-contrast imaging without staining or fixation at an 8-nm spatial resolution...
August 2, 2017: Biochemical and Biophysical Research Communications
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