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https://www.readbyqxmd.com/read/28637300/commercial-rodent-diets-differentially-regulate-autoimmune-glomerulonephritis-epigenetics-and-microbiota-in-mrl-lpr-mice
#1
Michael R Edwards, Rujuan Dai, Bettina Heid, Thomas E Cecere, Deena Khan, Qinghui Mu, Catharine Cowan, Xin M Luo, S Ansar Ahmed
The course and severity of lupus in spontaneous murine lupus models varies among laboratories, which may be due to variations in diet, housing and/or local environmental conditions. In this study, we investigated the influence of common rodent diets while keeping other factors constant. Female lupus-prone MRL/lpr mice were subjected to the same housing conditions and given one of the three diets: Teklad 7013 containing isoflavone rich soy and alfalfa, Harlan 2018 isoflavone rich soy-based diet, or ResearchDiets Inc...
June 15, 2017: International Immunology
https://www.readbyqxmd.com/read/28636662/differential-regulation-of-polarized-synaptic-vesicle-trafficking-and-synapse-stability-in-neural-circuit-rewiring-in-caenorhabditis-elegans
#2
Naina Kurup, Dong Yan, Karina Kono, Yishi Jin
Neural circuits are dynamic, with activity-dependent changes in synapse density and connectivity peaking during different phases of animal development. In C. elegans, young larvae form mature motor circuits through a dramatic switch in GABAergic neuron connectivity, by concomitant elimination of existing synapses and formation of new synapses that are maintained throughout adulthood. We have previously shown that an increase in microtubule dynamics during motor circuit rewiring facilitates new synapse formation...
June 21, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28636034/upregulation-of-heme-oxygenase-1-mediates-the-anti-inflammatory-activity-of-casein-glycomacropeptide-gmp-hydrolysates-in-lps-stimulated-macrophages
#3
Tiange Li, Xue Cheng, Min Du, Bin Chen, Xueying Mao
Recently, we have shown that casein glycomacropeptide hydrolysates (GHP) exhibit both anti-inflammatory and anti-oxidative activities in vitro. However, whether heme oxygenase-1 (HO-1) is involved in the cytoprotective effect of GHP against the inflammatory status remains unclear. Therefore, we hypothesized that HO-1 is a potential target of GHP, which mediates its anti-inflammatory effect. Here, GHP inhibited the intracellular reactive oxygen species (ROS) accumulation and NADPH oxidase 2 (NOX2) expression and enhanced reduced glutathione (GSH) levels in LPS-stimulated RAW264...
June 21, 2017: Food & Function
https://www.readbyqxmd.com/read/28633568/the-potential-inhibitory-effect-of-%C3%AE-casein-on-the-aggregation-and-deposition-of-a%C3%AE-1-42-fibrils-in-alzheimer-s-disease-insight-from-in-vitro-and-in-silico-studies
#4
Sedighehsadat Hojati, Arezou Ghahghaei, Milad Lagzian
Aβ1-40 and Aβ1-42 have been shown to be the main components of the amyloid plaques found in the extracellular environment of neurons in Alzheimer's disease. β-Casein, a milk protein, has been shown to display a remarkable chaperone ability in preventing the aggregation of proteins. In this study, the ability of β-casein to suppress the amyloid fibril formation of Aβ1-42 has been examined through in vitro studies and molecular docking simulation. The results demonstrate the inhibitory effect of β-casein on fibril formation in Aβ1-42, in a concentration dependent manner, suggesting that the chaperone binds to the Aβ1-42 and prevents amyloid fibril formation...
June 20, 2017: Journal of Biomolecular Structure & Dynamics
https://www.readbyqxmd.com/read/28629496/delftia-rhizosphaerae-sp-nov-isolated-from-the-rhizosphere-of-cistus-ladanifer
#5
Lorena Carro, Rebeca Mulas, Raquel Pastor-Bueis, Daniel Blanco, Arsenio Terrón, Fernando González-Andrés, Alvaro Peix, Encarna Velázquez
A bacterial strain, designated RA6T, was isolated from the rhizosphere of Cistus ladanifer. Phylogenetic analyses based on 16S rRNA gene sequence placed the isolate into the genus Delftia within a cluster encompassing the type strains of Delftia lacustris, Delftia tsuruhatensis, Delftia acidovorans and Delftia litopenaei, which presented greater than 97 % sequence similarity with respect to strain RA6T. DNA-DNA hybridization studies showed average relatedness ranging from of 11 to 18 % between these species of the genus Delftia and strain RA6T...
June 20, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28626073/increased-vascular-and-uteroplacental-matrix-metalloproteinase-1-and-7-levels-and-collagen-i-deposition-in-hypertension-in-pregnancy-role-of-tnf
#6
Wei Li, Ning Cui, Marc Q Mazzuca, Karina M Mata, Raouf A Khalil
Preeclampsia is manifested as maternal hypertension-in-pregnancy (HTN-Preg) and fetal growth restriction. Placental ischemia could be an initiating event; however, the molecular targets and intermediary mechanisms are unclear. We tested the hypothesis that placental ischemia could target vascular and uteroplacental matrix metalloproteinases (MMPs) through cytokines-mediated mechanism. MMP levels and distribution were measured in aorta, uterus and placenta of normal pregnant rats (Preg), and pregnant rats with reduced uterine perfusion pressure (RUPP)...
June 16, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28624284/comparing-the-effect-of-homogenization-and-heat-processing-on-the-properties-and-in-vitro-digestion-of-milk-from-organic-and-conventional-dairy-herds
#7
D L Van Hekken, M H Tunick, D X Ren, P M Tomasula
We compared the effects of homogenization and heat processing on the chemical and in vitro digestion traits of milk from organic and conventional herds. Raw milk from organic (>50% of dry matter intake from pasture) and conventional (no access to pasture) farms were adjusted to commercial whole and nonfat milk fat standards, and processed with or without homogenization, and with high-temperature-short-time or UHT pasteurization. The milk then underwent in vitro gastrointestinal digestion. Comparison of milk from organic and conventional herds showed that the milks responded to processing in similar ways...
June 14, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28624281/short-communication-genetic-parameters-for-milk-protein-composition-predicted-using-mid-infrared-spectroscopy-in-the-french-montb%C3%A3-liarde-normande-and-holstein-dairy-cattle-breeds
#8
M P Sanchez, M Ferrand, M Gelé, D Pourchet, G Miranda, P Martin, M Brochard, D Boichard
Genetic parameters for the major milk proteins were estimated in the 3 main French dairy cattle breeds (i.e. Montbéliarde, Normande, and Holstein) as part of the PhénoFinlait program. The 6 major milk protein contents as well as the total protein content (PC) were estimated from mid-infrared spectrometry on 133,592 test-day milk samples from 20,434 cows in first lactation. Lactation means, expressed as a percentage of milk (protein contents) or of protein (protein fractions), were analyzed with an animal mixed model including fixed environmental effects (herd, year × month of calving, and spectrometer) and a random genetic effect...
June 14, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28624276/cow-and-environmental-factors-associated-with-protein-fractions-and-free-amino-acids-predicted-using-mid-infrared-spectroscopy-in-bovine-milk
#9
A McDermott, M De Marchi, D P Berry, G Visentin, M A Fenelon, N Lopez-Villalobos, S McParland
The objective of the present study was to identify the factors associated with both the protein composition and free amino acid (FAA) composition of bovine milk predicted using mid-infrared spectroscopy. Milk samples were available from 7 research herds and 69 commercial herds. The spectral data from the research herds comprised 94,286 separate morning and evening milk samples; the spectral data from the commercial herds comprised 40,260 milk samples representing a composite sample of both the morning and evening milkings...
June 14, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28623166/casein-kinase-ii-ck2-glycogen-synthase-kinase-3-gsk-3-and-ikaros-mediated-regulation-of-leukemia
#10
REVIEW
Chandrika Gowda, Mario Soliman, Malika Kapadia, Yali Ding, Kimberly Payne, Sinisa Dovat
Signaling networks that regulate cellular proliferation often involve complex interactions between several signaling pathways. In this manuscript we review the crosstalk between the Casein Kinase II (CK2) and Glycogen Synthase Kinase-3 (GSK-3) pathways that plays a critical role in the regulation of cellular proliferation in leukemia. Both CK2 and GSK-3 are potential targets for anti-leukemia treatment. Previously published data suggest that CK2 and GSK-3 act synergistically to promote the phosphatidylinositol-3 kinase (PI3K) pathway via phosphorylation of PTEN...
June 13, 2017: Advances in Biological Regulation
https://www.readbyqxmd.com/read/28622544/conformational-transition-of-%C3%AE%C2%BA-casein-in-micellar-environment-insight-from-the-tryptophan-fluorescence
#11
Smruti Mishra, Geetanjali Meher, Hirak Chakraborty
Intrinsically disordered proteins (IDPs) are under intense analysis due to their structural flexibility and importance in biological functions. Minuscule modulation in the microenvironment induces significant conformational changes in IDPs, and these non-native conformations of the IDPs often induce aggregation and cause cell death. Changes in the membrane composition often change the microenvironment, which promote conformational change and aggregation of IDPs. κ-Casein, an important milk protein, belongs to the class of IDPs containing net negative charges...
June 8, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28621445/nutritional-and-functional-bioactivity-value-of-selected-azorean-macroalgae-ulva-compressa-ulva-rigida-gelidium-microdon-and-pterocladiella-capillacea
#12
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/28620257/comparison-of-milk-production-and-milk-composition-for-an-exotic-and-a-local-synthetic-rabbit-lines
#13
Karim El-Sabrout, Sarah Aggag, Alaa El-Raffa
AIM: Basic objective of this research was to compare two rabbit lines: V-line (exotic line), Alexandria (local synthetic line) for yield and composition of milk product and their effect on productive performance of rabbits. MATERIALS AND METHODS: The experiment was conducted on 80 does and their kits. Milk yield (MY) of each doe and milk composition (MC) were recorded at 3(rd) week of lactation. RESULTS: The results of MY showed insignificant difference between V-line and Alexandria line...
May 2017: Veterinary World
https://www.readbyqxmd.com/read/28620137/biological-specificity-of-cdk4-6-inhibitors-dose-response-relationship-in-vivo-signaling-and-composite-response-signature
#14
Erik S Knudsen, Jack Hutcheson, Paris Vail, Agnieszka K Witkiewicz
Recently developed potent and selective CDK4/6 inhibitors fall into two classes based on structure and toxicity profiles in clinical studies. One class, exemplified by palbociclib and ribociclib, exhibits neutropenia as a dose-limiting toxicity and requires discontinuous dosing. In contrast, the structurally distinct CDK4/6 inhibitor abemaciclib is dosed continuously, and has diarrhea and fatigue as dose-limiting toxicities. In preclinical models, palbociclib has been extensively studied and induces cell cycle inhibition in an RB-dependent manner...
June 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28619716/ratchet-like-polypeptide-translocation-mechanism-of-the-aaa-disaggregase-hsp104
#15
Stephanie N Gates, Adam L Yokom, JiaBei Lin, Meredith E Jackrel, Alexandrea N Rizo, Nathan M Kendsersky, Courtney E Buell, Elizabeth A Sweeny, Korrie L Mack, Edward Chuang, Mariana P Torrente, Min Su, James Shorter, Daniel R Southworth
Hsp100 polypeptide translocases are conserved AAA+ machines that maintain proteostasis by unfolding aberrant and toxic proteins for refolding or proteolytic degradation. The Hsp104 disaggregase from S. cerevisiae solubilizes stress-induced amorphous aggregates and amyloid. The structural basis for substrate recognition and translocation is unknown. Using a model substrate (casein), we report cryo-EM structures at near-atomic resolution of Hsp104 in different translocation states. Substrate interactions are mediated by conserved, pore-loop tyrosines that contact an 80 Å-long unfolded polypeptide along the axial channel...
June 15, 2017: Science
https://www.readbyqxmd.com/read/28615866/virulence-assay-and-role-of-bacillus-thuringiensis-ts110-as-biocontrol-agent-against-the-larval-stages-of-rice-leaffolder-cnaphalocrocis-medinalis
#16
Tuhin Subhra Ghosh, Soumendranath Chatterjee, Syed Afrin Azmi, Abhijit Mazumdar, Tushar Kanti Dangar
The bacterial isolate Bacillus thuringiensis TS110 was isolated from the rice field soil of Burdwan district, West Bengal, India. Bioassay test of the bacteria TS110 against 3rd, 4th and 5th instar larvae of Cnaphalocrocis medinalis was carried out. Cut leaf assay, potted plant assay and field assay were done. During filed assay, it has been observed that the LC50 (×10(7)) values of TS110 against 3rd, 4th and 5th instar larvae of C. medinalis were 3.77, 5.29, 4.83 and 4.93, 4.42, 4.72 in dry and wet season, respectively...
June 2017: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/28615847/larvicidal-potency-of-marine-actinobacteria-isolated-from-mangrove-environment-against-aedes-aegypti-and-anopheles-stephensi
#17
S Balakrishnan, P Santhanam, M Srinivasan
The marine soil samples were collected from different locations of Parangipettai mangrove ecosystem, Vellar estuary, southeast coast of India. Totally 30 different marine actinobacteria were isolated by serial dilution plate technique on starch casein agar medium. The isolated actinobacteria were investigated for their larvicidal activity against Aedes aegypti and Anopheles stephensi mosquitoes. Streptomyces fungicidicus, S. griseus, S. albus, S. alboflavus and S. rochei were identified as potential biocide producers...
June 2017: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/28614672/composition-and-variation-of-macronutrients-immune-proteins-and-human-milk-oligosaccharides-in-human-milk-from-nonprofit-and-commercial-milk-banks
#18
Laura Meredith-Dennis, Gege Xu, Elisha Goonatilleke, Carlito B Lebrilla, Mark A Underwood, Jennifer T Smilowitz
BACKGROUND: When human milk is unavailable, banked milk is recommended for feeding premature infants. Milk banks use processes to eliminate pathogens; however, variability among methods exists. Research aim: The aim of this study was to compare the macronutrient (protein, carbohydrate, fat, energy), immune-protective protein, and human milk oligosaccharide (HMO) content of human milk from three independent milk banks that use pasteurization (Holder vs. vat techniques) or retort sterilization...
June 1, 2017: Journal of Human Lactation: Official Journal of International Lactation Consultant Association
https://www.readbyqxmd.com/read/28613401/nutrient-profiles-and-volatile-odorous-compounds-of-raw-milk-after-exposure-to-electron-beam-pasteurizing-doses
#19
Lindsay R Ward, Chris R Kerth, Suresh D Pillai
Raw milk is known to contain relatively high numbers of microorganisms, some of which include microbial pathogens. Electron beam (eBeam) processing is a nonthermal pasteurization food processing technology. The underlying hypothesis was that eBeam processing will not negatively influence the composition, nutrient content, and aroma profile of raw milk. Raw milk samples were exposed to eBeam doses of 1 and 2 kGy, since our studies had shown that 2 kGy is suitable for raw milk pasteurization. The untreated and eBeam-treated raw milk samples were analyzed to detect changes in lactose, vitamin B2 , vitamin B12 , and calcium concentrations...
June 14, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/28613330/structural-arrest-and-dynamic-localization-in-biocolloidal-gels
#20
N Mahmoudi, A Stradner
Casein micelles interacting via an entropic intermediate-ranged depletion attraction exhibit a fluid-to-gel transition due to arrested spinodal decomposition. The bicontinuous networked structure of the gel freezes shortly after formation. We determine the timescales of structural arrest from the build-up of network rigidity after pre-shear rejuvenation, and find that the arrest time as well as the plateau elastic modulus of the gel diverge as a function of the volume fraction and interaction potential. Moreover, we show using scaling from naïve mode coupling theory that their mechanical properties are dictated by their microscopic dynamics rather than their heterogeneous large scale structure...
June 14, 2017: Soft Matter
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