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https://www.readbyqxmd.com/read/28728383/potential-influence-of-csn3-and-lgb-genes-in-genetic-association-studies-of-milk-quality-traits
#1
José Luis Zepeda-Batista, Luis Antonio Saavedra-Jiménez, Agustín Ruíz-Flores, Rafael Núñez-Domínguez, Rodolfo Ramírez-Valverde
Objective: From a review of published information on genetic association studies, a meta-analysis was conducted to determine the influence of the genes CSN3 (κ-casein) and LGB (β-lactoglobulin) on milk yield traits in Holstein, Jersey, Brown Swiss, and Fleckvieh. Methods: The GLIMMIX procedure was used to analyze milk production and percentage of milk protein and fat by trait. Models included the main effects and all their possible two-way interactions; not estimable effects and non-significant (p>0...
June 26, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28728119/nf-%C3%AE%C2%BAb-mediated-inflammation-correlates-with-calcium-overload-under-arsenic-trioxide-induced-myocardial-damage-in-gallus-gallus
#2
Siwen Li, Yu Wang, Hongjing Zhao, Ying He, Jinglun Li, Guangshun Jiang, Mingwei Xing
Arsenic is a known environmental pollutant and highly hazardous toxin to human health. Due to the biological accumulation, arsenic produces a variety of cardiovascular diseases. However, the exact mechanism is still unclear. Here, our objective was to evaluate myocardial damage and determine the potential mechanism under arsenic exposure in chickens. Arsenic trioxide (As2O3) (1.25 mg/kg BW, corresponding 15 mg/kg feed) was administered as basal diet to male Hy-line chickens (one-day-old) for 4, 8 and 12 weeks...
July 14, 2017: Chemosphere
https://www.readbyqxmd.com/read/28728087/surface-imprinted-bacterial-cellulose-nanofibers-for-hemoglobin-purification
#3
Monireh Bakhshpour, Emel Tamahkar, Müge Andaç, Adil Denizli
There is a significant need for the development of the novel adsorbents in the field of protein purification. In this study, thin hemoglobin imprinted film (MIP) was fabricated onto the bacterial cellulose nanofibers' (BCNFs) by surface imprinting method using metal ion coordination interactions with N-methacryloyl-(L)-histidinemethylester (MAH) and copper ions. The hemoglobin surface imprinted bacterial cellulose nanofibers (MIP-BCNFs) was applied to selective recognition of hemoglobin and purification from hemolysate...
July 10, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28728032/tunable-fluorescence-quenching-near-the-graphene-aqueous-interface
#4
Aaron W Chen, Alejandro L Briseno, Maria M Santore
With increased interest in graphene-based sensors for biomolecules and other targets, we investigated the impact of ionic strength on the steady-state emissions from fluorescein labels on proteins adsorbing on pristine CVD (chemical vapor deposited)-graphene on a silica support. Using the model system of fluorescein-tagged fibrinogen we demonstrated that, for fluorescein tags on adsorbed fibrinogen, emission intensity was very sensitive to the salt concentration. This behavior was not seen for fluorescein-tagged fibrinogen in solution...
July 6, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28728022/loss-of-tmem106b-ameliorates-lysosomal-and-frontotemporal-dementia-related-phenotypes-in-progranulin-deficient-mice
#5
Zoe A Klein, Hideyuki Takahashi, Mengxiao Ma, Massimiliano Stagi, Melissa Zhou, TuKiet T Lam, Stephen M Strittmatter
Progranulin (GRN) and TMEM106B are associated with several common neurodegenerative disorders including frontotemporal lobar degeneration (FTLD). A TMEM106B variant modifies GRN-associated FTLD risk. However, their functional relationship in vivo and the mechanisms underlying the risk modification remain unclear. Here, using transcriptomic and proteomic analyses with Grn(-/-) and Tmem106b(-/-) mice, we show that, while multiple lysosomal enzymes are increased in Grn(-/-) brain at both transcriptional and protein levels, TMEM106B deficiency causes reduction in several lysosomal enzymes...
July 19, 2017: Neuron
https://www.readbyqxmd.com/read/28727843/atomistic-modeling-of-alternating-access-of-a-mitochondrial-adp-atp-membrane-transporter-with-molecular-simulations
#6
Koichi Tamura, Shigehiko Hayashi
The mitochondrial ADP/ATP carrier (AAC) is a membrane transporter that exchanges a cytosolic ADP for a matrix ATP. Atomic structures in an outward-facing (OF) form which binds an ADP from the intermembrane space have been solved by X-ray crystallography, and revealed their unique pseudo three-fold symmetry fold which is qualitatively different from pseudo two-fold symmetry of most transporters of which atomic structures have been solved. However, any atomic-level information on an inward-facing (IF) form, which binds an ATP from the matrix side and is fixed by binding of an inhibitor, bongkrekic acid (BA), is not available, and thus its alternating access mechanism for the transport process is unknown...
2017: PloS One
https://www.readbyqxmd.com/read/28727780/comparative-analysis-of-signature-genes-in-prrsv-infected-porcine-monocyte-derived-cells-to-different-stimuli
#7
Laura C Miller, Damarius S Fleming, Xiangdong Li, Darrell O Bayles, Frank Blecha, Yongming Sang
Monocyte-derived DCs (mDCs) are major target cells in porcine reproductive and respiratory syndrome virus (PRRSV) pathogenesis; however, the plasticity of mDCs in response to activation stimuli and PRRSV infection remains unstudied. In this study, we polarized mDCs, and applied genome-wide transcriptomic analysis and predicted protein-protein interaction networks to compare signature genes involved in mDCs activation and response to PRRSV infection. Porcine mDCs were polarized with mediators for 30 hours, then mock-infected, infected with PRRSV strain VR2332, or a highly pathogenic PRRSV strain (rJXwn06), for 5 h...
2017: PloS One
https://www.readbyqxmd.com/read/28727767/exploring-the-binding-pathways-of-the-14-3-3%C3%AE-protein-structural-and-free-energy-profiles-revealed-by-hamiltonian-replica-exchange-molecular-dynamics-with-distancefield-distance-restraints
#8
Gabor Nagy, Chris Oostenbrink, Jozef Hritz
The 14-3-3 protein family performs regulatory functions in eukaryotic organisms by binding to a large number of phosphorylated protein partners. Whilst the binding mode of the phosphopeptides within the primary 14-3-3 binding site is well established based on the crystal structures of their complexes, little is known about the binding process itself. We present a computational study of the process by which phosphopeptides bind to the 14-3-3ζ protein. Applying a novel scheme combining Hamiltonian replica exchange molecular dynamics and distancefield restraints allowed us to map and compare the most likely phosphopeptide-binding pathways to the 14-3-3ζ protein...
2017: PloS One
https://www.readbyqxmd.com/read/28727736/persistent-damaged-bases-in-dna-allow-mutagenic-break-repair-in-escherichia-coli
#9
Jessica M Moore, Raul Correa, Susan M Rosenberg, P J Hastings
Bacteria, yeast and human cancer cells possess mechanisms of mutagenesis upregulated by stress responses. Stress-inducible mutagenesis potentially accelerates adaptation, and may provide important models for mutagenesis that drives cancers, host pathogen interactions, antibiotic resistance and possibly much of evolution generally. In Escherichia coli repair of double-strand breaks (DSBs) becomes mutagenic, using low-fidelity DNA polymerases under the control of the SOS DNA-damage response and RpoS general stress response, which upregulate and allow the action of error-prone DNA polymerases IV (DinB), II and V to make mutations during repair...
July 20, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28727496/modulation-of-vegf-induced-migration-and-network-formation-by-lymphatic-endothelial-cells-roles-of-platelets-and-podoplanin
#10
Stacey A Langan, Leyre Navarro-Núñez, Steve P Watson, Gerard B Nash
Lymphatic endothelial cells (LEC) express the transmembrane receptor podoplanin whose only known endogenous ligand CLEC-2 is found on platelets. Both podoplanin and CLEC-2 are required for normal lymphangiogenesis as mice lacking either protein develop a blood-lymphatic mixing phenotype. We investigated the roles of podoplanin and its interaction with platelets in migration and tube formation by LEC. Addition of platelets or antibody-mediated crosslinking of podoplanin inhibited LEC migration induced by vascular endothelial growth factors (VEGF-A or VEGF-C), but did not modify basal migration or the response to basic fibroblast growth factor or epidermal growth factor...
July 20, 2017: Platelets
https://www.readbyqxmd.com/read/28727441/adsorption-induced-changes-of-human-hemoglobin-on-ferric-pyrophosphate-nanoparticle-surface-probed-by-isotope-exchange-mass-spectrometry-an-implication-on-structure-function-correlation
#11
Bindu Y Srinivasu, Beena Bose, Gopa Mitra, Anura V Kurpad, Amit Kumar Mandal
In general, proteins in the biological system interact with nanoparticles (NPs) via adsorption on the particle surface. Understanding the adsorption at molecular level is crucial to explore NP-protein interactions. The increasing concerns about the risk to human health on NP exposure have been explored through the discovery of a handful protein biomarkers and biochemical analysis. However, detailed information on structural perturbation and associated functional changes of proteins on interaction with NPs is limited...
July 20, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28727439/solid-state-nmr-study-of-the-cicada-wing
#12
John David Gullion, Terry Gullion
Wings of flying insects are part of the cuticle which forms the exoskeleton. The primary molecular components of cuticle are protein, chitin, and lipid. How these components interact with one another to form the exoskeleton is not completely understood. The difficulty in characterizing the cuticle arises because it is insoluble and noncrystalline. These properties severely limit the experimental tools that can be used for molecular characterization. Solid-state nuclear magnetic resonance experiments have been used in the past to characterize the exoskeleton of beetles and have found that chitin and protein make comparable contributions to the molecular matrix...
July 20, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28727410/exosomes-mediate-epithelium-mesenchyme-crosstalk-in-organ-development
#13
Nan Jiang, Lusai Xiang, Ling He, Guodong Yang, Jinxuan Zheng, Chenglin Wang, Yimei Zhang, Sainan Wang, Yue Zhou, Tzong-Jen Sheu, Jiaqian Wu, Kenian Chen, Paulo G Coelho, Nicky M Tovar, Shin Hye Kim, Mo Chen, Yan-Heng Zhou, Jeremy J Mao
Organ development requires complex signaling by cells in different tissues. Epithelium and mesenchyme interactions are crucial for the development of the skin, hair follicles, kidney, lungs, prostate, major glands and the teeth. Despite myriad literature on cell-cell interactions and ligand-receptor binding, the roles extracellular vesicles in epithelium-mesenchyme interactions during organogenesis are poorly understood. Here, we discovered that ~100 nm exosomes were secreted by the epithelium and mesenchyme of a developing tooth organ, and diffused through the basement membrane...
July 20, 2017: ACS Nano
https://www.readbyqxmd.com/read/28727280/two-novel-effectors-of-trafficking-and-maturation-of-the-yeast-plasma-membrane-h-atpase
#14
Yosef Geva, Jonathan Crissman, Eric C Arakel, Natalia Gómez-Navarro, Silvia G Chuartzman, Kyle R Stahmer, Blanche Schwappach, Elizabeth A Miller, Maya Schuldiner
The endoplasmic reticulum (ER) is the entry site of proteins into the endomembrane system. Proteins exit the ER via COPII vesicles in a selective manner, mediated either by direct interaction with the COPII coat or aided by cargo receptors. Despite the fundamental role of such receptors in protein sorting, only a few have been identified. To further define the machinery that packages secretory cargo and targets proteins from the ER to Golgi membranes, we used multiple systematic approaches, which revealed two uncharacterized proteins that mediate the trafficking and maturation of Pma1, the essential yeast plasma membrane proton ATPase...
July 20, 2017: Traffic
https://www.readbyqxmd.com/read/28727105/analysis-of-the-gut-bacterial-communities-in-beef-cattle-and-their-association-with-feed-intake-growth-and-efficiency
#15
P R Myer, H C Freetly, J E Wells, T P L Smith, L A Kuehn
The impetus behind the global food security challenge is direct, with the necessity to feed almost 10 billion people by 2050. Developing a food-secure world, where people have access to a safe and sustainable food supply, is the principal goal of this challenge. To achieve this end, beef production enterprises must develop methods to produce more pounds of animal protein with less. Selection for feed-efficient beef cattle using genetic improvement technologies has helped to understand and improve the stayability and longevity of such traits within the herd...
July 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28727083/influence-of-feed-efficiency-classification-and-growing-and-finishing-diet-type-on-meat-tenderness-attributes-of-beef-steers
#16
C P Blank, J Russell, S M Lonergan, S L Hansen
Enhancing feed efficiency (FE) in cattle continues to be an important goal in the beef industry. Previous research suggests improving FE may alter calpain system activity, potentially having negative effects on meat tenderness. The objective of this study was to assess the potential influence of beef cattle FE on postmortem meat tenderness. During the growing phase, 181 crossbred steers were fed for 76 d at the University of Missouri on a whole shell corn-based diet (MU-Corn; = 90) or a roughage-based diet (MU-Rough; = 91)...
July 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28727056/effects-of-protein-and-fat-concentration-in-coproduct-based-growing-calf-diets-on-adipogenic-and-lipogenic-gene-expression-blood-metabolites-and-carcass-composition
#17
J R Segers, J J Loor, S J Moisá, D Gonzalez, D W Shike
Crossbred calves ( = 30; age = 95 ± 1.7 d; BW = 179 ± 18 kg) were fed 1 of 5 growing diets: 1) corn-based control, 2) low-fat, low-protein coproduct blend, 3) high-fat, low-protein coproduct blend, 4) low-fat, high-protein coproduct blend, and 5) high-fat, high-protein coproduct blend for 112 d (growing phase) followed by a common corn-based finishing diet (additional 112 d; finishing phase). Calves were biopsied at 0, 112, and 224 d for transcriptional analysis via real-time quantitative PCR of 14 genes associated with adipogenesis and lipogenesis within the muscle...
June 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28727033/the-effect-of-age-and-carbohydrate-and-protein-sources-on-digestibility-fecal-microbiota-fermentation-products-fecal-iga-and-immunological-blood-parameters-in-dogs
#18
A P J Maria, L Ayane, T C Putarov, B A Loureiro, B P Neto, M F Casagrande, M O S Gomes, M B A Glória, A C Carciofi
The present study compared the effects of diets formulated with fibers of different fermentability and protein sources of animal or vegetable origins on old and adult dogs. The experiment was organized in a 3 (diets) × 2 (ages) factorial arrangement, totaling 6 treatments. Thirty-six Beagle dogs were used (18 old dogs [10.2 ± 1.0 yr] and 18 young adult dogs [2.6 ± 0.9 yr]), with 6 dogs per treatment. Three diets with similar compositions were used: a nonfermentable insoluble fiber source (sugarcane fiber) and chicken byproduct meal (nonfermentable fiber [NFF] diet), a fermentable fiber source (beet pulp) and chicken byproduct meal (fermentable fiber [FF] diet), and soybean meal as a protein and fiber source (soybean meal [SM] diet)...
June 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28727029/effects-of-graded-levels-of-microbial-phytase-on-apparent-total-tract-digestibility-of-calcium-and-phosphorus-and-standardized-total-tract-digestibility-of-phosphorus-in-four-sources-of-canola-meal-and-in-soybean-meal-fed-to-growing-pigs
#19
Y She, Y Liu, H H Stein
One hundred twenty pigs were used to determine effects of graded levels of microbial phytase on the apparent total tract digestibility (ATTD) of P and Ca and the standardized total tract digestibility (STTD) of P in 4 sources of canola meal and in 1 source of soybean meal (SBM) fed to growing pigs. The 4 sources of canola meal were produced from 1 source of high-protein canola seeds and 2 sources of conventional canola seeds with 1 of the conventional canola seeds being divided into 2 separate batches before crushing...
May 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28727010/effect-of-experimentally-increased-protein-supply-to-postpartum-dairy-cows-on-plasma-protein-synthesis-rumen-tissue-proliferation-and-immune-homeostasis
#20
M Larsen, C M Røntved, P K Theil, M Khatun, C Lauridsen, N B Kristensen
The effect of experimentally increasing the postpartum protein supply on plasma protein synthesis, rumen tissue proliferation, and immune homeostasis was studied using 8 periparturient Holstein cows in a complete randomized design. At calving, cows were assigned to abomasal infusion of water (CTRL) or casein (CAS) in addition to a lactation diet. Casein infusion was gradually decreased from 696 ± 1 g/d at +2 d relative to calving (DRTC) to 212 ± 10 g/d at +29 DRTC to avoid excessive supply. Synthesis rate of plasma proteins was measured at -14, +4, +15, and +29 DRTC by measuring [C]Phe isotopic enrichment in arterial plasma free Phe, total plasma proteins, and albumin after 3, 5, and 7 h of jugular ring[C]Phe infusion...
May 2017: Journal of Animal Science
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