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https://www.readbyqxmd.com/read/28743004/association-of-m18bp1-knl2-with-cenp-a-nucleosome-is-essential-for-centromere-formation-in-non-mammalian-vertebrates
#1
Tetsuya Hori, Wei-Hao Shang, Masatoshi Hara, Mariko Ariyoshi, Yasuhiro Arimura, Risa Fujita, Hitoshi Kurumizaka, Tatsuo Fukagawa
Centromeres are specified and maintained by sequence-independent epigenetic mechanisms through the incorporation of CENP-A into centromeres. Given that CENP-A incorporation requires the Mis18 complex to be in the centromere region, it is necessary to precisely understand how the Mis18 complex localizes to the centromere region. Here, we showed that centromere localization of the Mis18 complex depends on CENP-A, but not CENP-C or CENP-T, in chicken DT40 cells. Furthermore, we demonstrated that M18BP1/KNL2, a member of the Mis18 complex, contained the CENP-C-like motif in chicken and other vertebrates, which is essential for centromere localization and M18BP1/KNL2 function in DT40 cells...
July 24, 2017: Developmental Cell
https://www.readbyqxmd.com/read/28741959/effect-of-epigallocatechin-gallate-on-growth-performance-and-antioxidant-capacity-in-heat-stressed-broilers
#2
Bo Xue, Jiao Song, Longzhou Liu, Jingxian Luo, Guangming Tian, Ye Yang
This study investigated the effects of epigallocatechin gallate (EGCG) on the growth performance and antioxidant capacity of 35-d-old broilers exposed to heat stress. Broilers, 14 d of age, were divided into four groups with six replicates per group (eight chickens/replicate). Thermoneutral group (Group TN) was fed the basal diet and maintained at 28°C for 24 h/d. The heat-stressed groups were housed at 35°C for 12 h/d and 28°C for 12 h/d and fed the basal diet supplemented with EGCG at 0, 300 and 600 mg/kg diet (Groups HS0, HS 300 and HS600, respectively)...
July 25, 2017: Archives of Animal Nutrition
https://www.readbyqxmd.com/read/28741921/bioinspired-composite-matrix-containing-ha-silica-core-shell-nanorods-for-bone-tissue-engineering
#3
Anitha A, Deepthy Menon, Sivanarayanan Tb, Manzoor Koyakutty, Chandini C Mohan, Shantikumar V Nair, Manitha B Nair
Development of multifunctional bioinspired scaffolds that can stimulate vascularization and rege-neration is necessary for application in bone tissue engineering. Herein, we report a composite matrix containing Hydroxyapatite (HA) - silica core shell nanorods with good biocompatibility, osteogenic differentiation, vascularization and bone regeneration potential. The biomaterial consist of crystalline, rod-shaped nanoHA core with uniform amorphous silica sheath (Si-nHA) that retains the characteristic phases of the individual components, confirmed by HR-TEM, XRD, XPS and FTIR...
July 25, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28741666/assessment-of-the-potential-of-the-multi-enzyme-producer-bacillus-amyloliquefaciens-us573-as-alternative-feed-additive
#4
Ameny Farhat-Khemakhem, Monia Blibech, Ines Boukhris, Mohamed Makni, Hichem Chouayekh
BACKGROUND: Recently, probiotics have increasingly been used as feed additives in poultry diets as an alternative to antibiotic growth promoters fostering resistance development. RESULTS: This study was aimed at assessing the potential of Bacillus amyloliquefaciens US573 as a direct-fed microbial. The US573 strain was found to be free of harmful enzymatic activities and sensitive to antibiotics. In addition, it showed a good acid and bovine bile tolerance, high adhesion efficacy to chicken enterocytes, and an ability to form biofilms, which may favor its survival and persistence in the animal gastrointestinal tract...
July 25, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28741661/effect-of-dietary-resveratrol-supplementation-on-meat-quality-muscle-antioxidative-capacity-and-mitochondrial-biogenesis-of-broilers
#5
Cheng Zhang, Lei Yang, Xiaohui Zhao, Xingyong Chen, Li Wang, Zhaoyu Geng
BACKGROUND: The naturally occurring polyphenol resveratrol has been acknowledged with many beneficial biological effects. The aim of this study was to evaluate the influence of dietary resveratrol supplementation on meat quality, muscle antioxidative capacity and mitochondrial biogenesis of broilers. One hundred and eighty 21-d-old male Cobb broilers were randomly assigned to two groups and fed on a 0 mg kg(-1) or 400 mg kg(-1) resveratrol-supplemented diet for 21 d. Then, chickens were slaughtered and pectoralis major muscle (PM) samples were collected for analysis...
July 25, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28741151/probiotic-characteristics-of-lactobacillus-curvatus-dn317-a-strain-isolated-from-chicken-ceca
#6
Mohamed Zommiti, Nathalie Connil, Jeannette Ben Hamida, Mounir Ferchichi
The probiotic characteristics of Lactobacillus curvatus DN317, a strain isolated from chicken ceca, were evaluated. This strain was selected for study from the isolated Lactobacillus strains because it has specific anti-microbial activity against Campylobacter jejuni ATCC 33560, Camp. jejuni NCTC 11168, Listeria monocytogenes ATCC 7644, and Bacillus subtilis ATCC 8633. Lact. curvatus DN317 showed an auto-aggregation percentage of 72% and presented the highest co-aggregation with Lact. monocytogenes ATCC 7644 (68%) compared to B...
July 24, 2017: Probiotics and Antimicrobial Proteins
https://www.readbyqxmd.com/read/28740789/a-unique-lymphaticovenous-supermicrosurgery-training-curriculum-reflections-on-validation-and-competency-thresholds
#7
Georgios Pafitanis, Mitsunaga Narushima, Mitsunobu Harima, Ali Ghanem, Simon Myers, Isao Koshima
Supermicrosurgery is becoming a commonly used technique in various subspecialties of reconstructive surgery. However, there is a lack of standardization and validation in novel supermicrosurgical training. Current simulation training programs are not adequately focused on the challenges encountered during clinical supermicrosurgery practice. This article describes the authors' experience utilizing a supermicrosurgery competency-based training curriculum, in a simulation-based environment, toward safe clinical practice for lymphatic submillimeter supermicrovascular surgery...
June 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28740754/the-time-course-of-broiler-intestinal-microbiota-development-after-administration-of-cecal-contents-to-incubating-eggs
#8
Erin E Donaldson, Dragana Stanley, Robert J Hughes, Robert J Moore
BACKGROUND: The microbial populations that inhabit the gastrointestinal tract (GIT) are known to influence the health and growth performance of the host. Clean hatcheries and machine-based incubation practices in the commercial poultry industry can lead to the acquisition of aberrant microbiota in the GIT of chickens and a very high level of bird-to-bird variation. The lack of microbial profile flock uniformity presents challenges for harnessing and manipulating intestinal bacteria to better serve the host...
2017: PeerJ
https://www.readbyqxmd.com/read/28740730/bacteriolytic-activity-of-human-interleukin-2-chicken-egg-lysozyme-in-the-presence-of-potential-effectors
#9
P A Levashov, D A Matolygina, E D Ovchinnikova, D L Atroshenko, S S Savin, N G Belogurova, S A Smirnov, V I Tishkov, A V Levashov
The bacteriolytic activity of interleukin-2 and chicken egg lysozyme in the presence of various substances has been studied. Glycine and lysine do not affect the activity of interleukin-2 but increase that of lysozyme, showing a bell-shape concentration dependence peaking at 1.5 mM glycine and 18 mM lysine. Arginine and glutamate activate both interleukin-2 and lysozyme with a concentration dependence of the saturation type. Aromatic amino acids have almost no effect on the activity of both interleukin-2 and lysozyme...
April 2017: Acta Naturae
https://www.readbyqxmd.com/read/28739827/transcriptional-profiling-of-the-chicken-tracheal-response-to-virulent-mycoplasma-gallisepticum-strain-rlow
#10
J Beaudet, E R Tulman, K Pflaum, X Liao, G F Kutish, S M Szczepanek, L K Silbart, S J Geary
Mycoplasma gallisepticum, the primary etiologic agent of Chronic Respiratory Disease (CRD) in poultry, leads to prolonged recruitment and activation of inflammatory cells in the respiratory mucosa. This is consistent with the current model of immune dysregulation that ostensibly allows the organism to evade clearance mechanisms and establish chronic infection. To date, studies using qRT-PCR and microarrays have shown a significant transient up-regulation of cytokines and chemokines from tracheal epithelial cells (TECs) in vitro and tracheal tissue ex vivo in response to virulent strain Rlow, that contributes to the infiltration of inflammatory cells into the tracheal mucosa...
July 24, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28739438/pathogenicity-of-the-egyptian-a-h5n1-avian-influenza-viruses-in-chickens
#11
A A Azab, A Arafa, A Selim, M K Hassan, A I Bazid, A H Sultan, H A Hussein, E M Abdelwhab
Long-term circulation of highly pathogenic avian influenza H5N1 viruses of clade 2.2.1 in Egyptian poultry since February 2006 resulted in the evolution of two distinct clades: 2.2.1.1 represents antigenic-drift variants isolated from vaccinated poultry and 2.2.1.2 that caused the newest upsurge in birds and humans in 2014/2015. In the present study, nine isolates were collected from chickens, ducks and turkeys representing the commercial and backyard sectors during the period 2009-2015. The subtyping was confirmed by hemagglutination inhibition (HI) test, RT-qPCR and sequence analysis...
July 21, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28739319/the-effect-of-prosthetic-rehabilitation-and-simple-dietary-counseling-on-food-intake-and-oral-health-related-quality-of-life-among-the-edentulous-individuals-a-randomized-controlled-trial
#12
Noriko Amagai, Yuriko Komagamine, Manabu Kanazawa, Maiko Iwaki, Ayami Jo, Hiroyuki Suzuki, Shunsuke Minakuchi
OBJECTIVE: To investigate the combined effect of complete denture renewal and simple dietary advice. METHODS: A randomized controlled trial was performed with edentulous patients who required new complete dentures. All participants received complete denture treatment. In addition, the intervention group received dietary advice in a pamphlet form, while the control group received advice pertaining to the care and maintenance of the dentures. The advice was given by dentists for each group...
July 21, 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28738689/spermatozoa-dna-and-plasma-membrane-integrity-after-pellet-optimised-processing-for-cryopreservation-in-meat-type-chicken-breeders
#13
T M Gliozzi, L Zaniboni, N Iaffaldano, S Cerolini
1. Aim of this study was the development of an optimised cryopreservation pellet procedure for chicken semen and the assessment of DNA and membrane integrity in frozen/thawed spermatozoa in a Hubbard F15 meat type selected strain. 2. The following semen processing conditions were studied: spermatozoa working concentration (SWC), 1.5 vs 2x10(9) cells/ml in pre-freezing extender; equilibration of diluted semen at 5°C, 20 vs 40 min; dimethylacetamide concentration, 6% vs 9%; dimethylacetamide equilibration time at 5°C, 1 vs 30 min; thawing at 60°C for 10 vs 50°C for 30 sec...
July 25, 2017: British Poultry Science
https://www.readbyqxmd.com/read/28738003/pharmacokinetics-and-egg-residues-after-oral-administration-of-a-single-dose-of-meloxicam-in-domestic-chickens-gallus-domesticus
#14
Marcy J Souza, Joan B Bergman, Molly S White, Kristen I Gordon, Lillian E Gerhardt, Sherry K Cox
OBJECTIVE To determine the pharmacokinetics of meloxicam in domestic hens and duration and quantity of drug residues in their eggs following PO administration of a single dose (1 mg of meloxicam/kg). ANIMALS 8 healthy adult White Leghorn hens. PROCEDURES Hens were administered 1 mg of meloxicam/kg PO once. A blood sample was collected immediately before and at intervals up to 48 hours after drug administration. The hens' eggs were collected for 3 weeks after drug administration. Samples of the hens' plasma, egg whites (albumen), and egg yolks were analyzed by high-performance liquid chromatography...
August 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28737905/metabolism-of-t-2-toxin-in-farm-animals-and-human-in-vitro-and-in-chickens-in-vivo-using-ultra-high-performance-liquid-chromatography-quadrupole-time-of-flight-hybrid-mass-spectrometry-along-with-online-hydrogen-deuterium-exchange-technique
#15
Shupeng Yang, Marthe De Boevre, Huiyan Zhang, Karl De Ruyck, Feifei Sun, Jinzhen Zhang, Yue Jin, Yanshen Li, Zhanhui Wang, Suxia Zhang, Jinhui Zhou, Yi Li, Sarah De Saeger
After incubated with animals' and human liver microsomes, metabolites of phase I and II were investigated. A comparison was performed by ultrahigh performance liquid chromatography-quadrupole/time-of-flight coupled to mass spectrometry (UHPLC-Q/TOF). Consequently, a total of four phase I metabolites and three glucuronide binding metabolites of T-2 toxin were discovered. Although a significant metabolic difference was observed among six species, HT-2 toxin was the major product in all species. In addition, the in vivo metabolism of T-2 toxin after oral administration was also investigated in chickens, In total, 18 metabolites were detected, of which 13 were novel, to our knowledge, and reported for the first time...
July 24, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28737107/characterization-of-enterococcus-faecalis-isolates-by-chicken-embryo-lethality-assay-and-eric-pcr
#16
Ana E Blanco, Martin Barz, David Cavero, Wiebke Icken, A Reza Sharifi, Matthias Voss, Carlos Buxadé, Rudolf Preisinger
Enterococcus faecalis is the major causative agent of amyloid arthropathy in chickens. Given the difficulty of estimating the risk from field strains, the Embryo Lethality Assay (ELA) is proposed in this study as model to predict the virulence of 68 avian E. faecalis strains. Additionally, Enterobacterial Repetitive Intergenic Consensus Polymerase Chain Reaction (ERIC-PCR) was used to characterize the genetic diversity of the E. faecalis strains. The ELA was performed ten times with subsets of seven-eight E...
July 24, 2017: Avian Pathology: Journal of the W.V.P.A
https://www.readbyqxmd.com/read/28737099/concentrations-and-human-health-risk-assessment-of-ddt-and-its-metabolites-in-free-range-and-commercial-chicken-products-from-kwazulu-natal-south-africa
#17
L A Thompson, Y Ikenaka, Y B Yohannes, J J van Vuren, V Wepener, N J Smit, W S Darwish, S M M Nakayama, H Mizukawa, M Ishizuka
Organochlorine pesticides such as dichlorodiphenyltrichloroethane (DDT) have been used in agriculture and for disease control purposes over many decades. Reports suggest that DDT exposure may result in a number of adverse effects in humans. In the KwaZulu-Natal Province of South Africa, DDT is sprayed annually in homes (indoor residual spraying) to control the mosquito vector of malaria. In the northern part of the Province, samples of free-range chicken meat (n = 48) and eggs (n = 13), and commercially-produced chicken meat (n = 6) and eggs (n = 11) were collected and analysed...
July 24, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28737033/rapid-identification-of-meat-species-by-the-internal-extractive-electrospray-ionization-mass-spectrometry-of-hemoglobin-selectively-extracted-on-functionalized-graphene-oxide
#18
Lili Song, Jiaquan Xu, Konstantin Chingin, Tenggao Zhu, Yue Zhang, Yong Tian, Huanwen Chen, Xuwei Chen
Hemoglobin (Hb) present in the blood and meat juice samples was selectively adsorbed by graphene oxide (GO) particles functionalized with amylopectin (AP) and was sensitively detected by the direct internal extractive electrospray ionization mass spectrometry (iEESI-MS) analysis for the identification of meat type. Various samples including the whole blood samples of chicken, duck, sheep, mouse, pigeon, turtledove and meat juice mixtures were successfully identified based on the difference in molecular composition of Hb reflected in MS...
July 24, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28736979/in-vitro-characteristics-of-lactobacillus-spp-strains-isolated-from-the-chicken-digestive-tract-and-their-role-in-the-inhibition-of-campylobacter-colonization
#19
Patrycja A Kobierecka, Agnieszka K Wyszyńska, Tamara Aleksandrzak-Piekarczyk, Maciej Kuczkowski, Anna Tuzimek, Wioletta Piotrowska, Adrian Górecki, Iwona Adamska, Alina Wieliczko, Jacek Bardowski, Elżbieta K Jagusztyn-Krynicka
Campylobacter jejuni/coli infections are the leading cause of bacterial diarrheal illnesses in humans. Many epidemiological studies indicate that improperly prepared meat from chickens that carry a high load of Campylobacter in their intestinal tracts is the key source of human infections. LAB, mainly members of the Lactococcus and Lactobacillus genera, increasingly have been tested as vehicles for the delivery of heterologous bacterial or viral antigens to animal mucosal immune systems. Thus, the objective of this study was to isolate, identify, and characterize Lactobacillus spp...
July 24, 2017: MicrobiologyOpen
https://www.readbyqxmd.com/read/28736866/antibacterial-activity-of-fusion-from-biosynthesized-acidocin-silver-nanoparticles-and-its-application-for-eggshell-decontamination
#20
A B Abeer Mohammed, Mahmoud A Al-Saman, Ahmed A Tayel
Bacteriocins from lactic acid bacteria (LAB) are useful to control the persistent development of pathogenic microorganisms in food and medicine fields. The bacteriocin acidocin was extracted from Lactobacillus acidophilus M1 that was isolated from fermented milk, purified using ammonium sulphate fractionation, and gel filtration column chromatography using Sephadex matrix and applied as a potential antibacterial agent. The molecular weight of the purified acidocin was estimated using SDS-PAGE to be 6.6 kDa...
July 24, 2017: Journal of Basic Microbiology
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