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https://www.readbyqxmd.com/read/29169149/prokaryotic-expression-and-anti-ibdv-activity-of-chicken-interleukin-18-and-interferon-%C3%AE
#1
Baifen Song, Xiaoting Li, Jinzhu Ma, Liquan Yu, Zhenyue Feng, Zhenhua Liu, Yudong Cui
Interferon-γ (IFN-γ), a cytokine produced by activated natural killer cells and T lymphocytes, is an important regulator of innate and adaptive immunity. Interleukin (IL)-18, also known as IFN-γ-inducing factor, is a cytokine that induces T and natural killer cells to produce IFN-γ. In this study, the chicken IL-18 (ChIL-18) and chicken IFN-γ (ChIFN-γ) genes were inserted into the pET28a prokaryotic expression vector, resulting in pET28a-IL-18 and pET28a-IFN-γ, respectively. These plasmids were transformed into Escherichia coli strain BL21, and the ChIL-18 and ChIFN-γ proteins were expressed and purified...
November 24, 2017: Cytogenetic and Genome Research
https://www.readbyqxmd.com/read/29168675/genome-characterization-of-turkey-rotavirus-g-strains-from-the-united-states-identifies-potential-recombination-events-with-human-rotavirus-b-strains
#2
Fangzhou Chen, Todd P Knutson, Robert E Porter, Max Ciarlet, Sunil Kumar Mor, Douglas G Marthaler
Rotavirus G (RVG) strains have been detected in a variety of avian species, but RVG genomes have been published from only a single pigeon and two chicken strains. Two turkey RVG strains were identified and characterized, one in a hatchery with no reported health issues and the other in a hatchery with high embryo/poult mortality. The two turkey RVG strains shared only an 85.3 % nucleotide sequence identity in the VP7 gene while the other genes possessed high nucleotide identity among them (96.3-99.9 %)...
November 23, 2017: Journal of General Virology
https://www.readbyqxmd.com/read/29167984/x-ray-micro-computed-tomography-in-pediatric-surgery-a-new-tool-for-studying-embryos
#3
Susann Brosig, N Peukert, R Metzger, H Schneider, R Haak, J Gosemann, M Lacher, D Kluth
PURPOSE: The embryology of common congenital malformations is discussed controversially. Studies are hampered by a shortage of study material and techniques which require partial or complete preparation and therewith destruction of embryos. X-ray micro-computed-tomography (µCT) is a technical opportunity keeping the embryos intact. Thus, the aim of this study was to assess the applicability of µCT in embryonic research compared to the anatomical information obtained by scanning electron microscopy (SEM)...
November 22, 2017: Pediatric Surgery International
https://www.readbyqxmd.com/read/29167264/complete-genome-sequences-of-two-strains-of-the-meat-spoilage-bacterium-brochothrix-thermosphacta-isolated-from-ground-chicken
#4
George C Paoli, Chandi Wijey, Ly-Huong Nguyen, Chin-Yi Chen, Xianghe Yan, Peter L Irwin
Brochothrix thermosphacta is an important meat spoilage bacterium. Here we report the genome sequences of two strains of B. thermosphacta isolated from ground chicken. The genome sequences were determined using long-read PacBio single-molecule real-time (SMRT) technology and are the first complete genome sequences reported for B. thermosphacta.
November 22, 2017: Genome Announcements
https://www.readbyqxmd.com/read/29167263/complete-genome-sequences-of-campylobacter-jejuni-strains-isolated-from-retail-chicken-and-chicken-gizzards
#5
Daya Marasini, Mohamed K Fakhr
Genome sequences of Campylobacter jejuni FJ3124 and ZP3204 isolated from retail chicken gizzards and Campylobacter jejuni TS1218 isolated from retail chicken showed the presence of 1,694,324-, 1,763,161-, and 1,762,596-bp circular chromosomes, respectively. Campylobacter jejuni ZP3204 and TS1218 harbored large tetracycline resistance plasmids with type IV secretion systems.
November 22, 2017: Genome Announcements
https://www.readbyqxmd.com/read/29167234/route-of-antigen-presentation-can-determine-the-selection-of-foxp3-dependent-or-foxp3-independent-dominant-immune-tolerance
#6
Ana Agua-Doce, Marta Caridade, Vanessa G Oliveira, Lisa Bergman, Maria C Lafaille, Juan J Lafaille, Jocelyne Demengeot, Luis Graca
It has been shown that dominant tolerance, namely in transplantation, requires Foxp3(+) regulatory T cells. Although most tolerance-inducing regimens rely on regulatory T cells, we found that induction of tolerance to proteins in aluminum hydroxide can be achieved in Foxp3-deficient mice using nondepleting anti-CD4 Abs. This type of tolerance is Ag specific, and tolerant mice retain immune competence to respond to unrelated Ags. We demonstrated with chicken OVA-specific TCR-transgenic mice that the same tolerizing protocol (CD4 blockade) and the same target Ag (OVA) achieves Foxp3-dependent transplantation tolerance to OVA-expressing skin grafts, but Foxp3-independent tolerance when the Ag is provided as OVA-aluminum hydroxide...
November 22, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29166670/age-related-differences-in-the-respiratory-microbiota-of-chickens
#7
Laura Glendinning, Gerry McLachlan, Lonneke Vervelde
In this era of next generation sequencing technologies it is now possible to characterise the chicken respiratory microbiota without the biases inherent to traditional culturing techniques. However, little research has been performed in this area. In this study we characterise and compare buccal, nasal and lung microbiota samples from chickens in three different age groups using 16S rRNA gene analysis. Buccal and nasal swabs were taken from birds aged 2 days (n = 5), 3 weeks (n = 5) and 30 months (n = 6). Bronchoalveolar lavage (BAL) samples were also collected alongside reagent only controls...
2017: PloS One
https://www.readbyqxmd.com/read/29166389/comparisons-of-management-practices-and-farm-design-on-australian-commercial-layer-and-meat-chicken-farms-cage-barn-and-free-range
#8
Angela Bullanday Scott, Mini Singh, Jenny-Ann Toribio, Marta Hernandez-Jover, Belinda Barnes, Kathryn Glass, Barbara Moloney, Amanda Lee, Peter Groves
There are few published studies describing the unique management practices, farm design and housing characteristics of commercial meat chicken and layer farms in Australia. In particular, there has been a large expansion of free range poultry production in Australia in recent years, but limited information about this enterprise exists. This study aimed to describe features of Australian commercial chicken farms, with particular interest in free range farms, by conducting on-farm interviews of 25 free range layer farms, nine cage layer farms, nine barn layer farms, six free range meat chicken farms and 15 barn meat chicken farms in the Sydney basin bioregion and South East Queensland...
2017: PloS One
https://www.readbyqxmd.com/read/29164427/virulence-traits-of-avian-pathogenic-apec-and-fecal-afec-e-coli-isolated-from-broiler-chickens-in-algeria
#9
Lounis Mohamed, Zhao Ge, Li Yuehua, Gao Yubin, Kaidi Rachid, Oumouna Mustapha, Wang Junwei, Oumouna Karine
Avian pathogenic E. coli (APEC) is the etiologic agent of avian colibacillosis, the most common disease responsible for chicken morbidity in the world. Although multiple virulence-associated factors were identified, their prevalence in Algeria is still poorly known. In the present research, 92 avian pathogenic E. coli (APEC) isolates were recovered from broilers with clinical signs and lesions of colibacillosis. In addition, 32 E. coli isolates collected from feces of healthy birds (AFEC) were included for comparison...
November 21, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/29164137/urban-livestock-keeping-in-the-city-of-nairobi-diversity-of-production-systems-supply-chains-and-their-disease-management-and-risks
#10
Pablo Alarcon, Eric M Fèvre, Patrick Muinde, Maurice K Murungi, Stella Kiambi, James Akoko, Jonathan Rushton
Urban livestock keeping in developing cities have an important role in food security and livelihoods but can also pose a significant threat to the environment and health of urban dwellers. The aim of this study was to identify the different livestock systems in Nairobi, their supply chains, and their management and food safety risks. Seven focus group discussions with livestock production officers in charge of each major Nairobi sub-county were conducted. Data were collected on the type of systems existing for each livestock species and their supply chains, disease management, food safety risks, and general husbandry and gender factors...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/29163778/a-study-on-the-expression-of-apoptotic-molecules-related-to-death-receptor-and-endoplasmic-reticulum-pathways-in-the-jejunum-of-afb1-intoxicated-chickens
#11
Zhixiang Zheng, Zhicai Zuo, Panpan Zhu, Fengyuan Wang, Heng Yin, Xi Peng, Jing Fang, Hengmin Cui, Caixia Gao, Hetao Song, Ping Ouyang, Yi Zhou, Song Zhao
Aflatoxin B1 (AFB1) is a common contaminant of poultry feeds in tropical and subtropical climates. Early researches have well established the hepatotoxic, carcinogenic, and immunotoxic effects of AFB1 on humans and animals. Recently, it has been shown that AFB1 could cause the up- or down-alteration of mitochondrial pathway molecule expression. However, the information on the expression of death receptor and endoplasmic reticulum molecules in the jejunal apoptosis induced by AFB1 were unavailable. So the present study was conducted to explore the expression of apoptotic molecules related to death receptor and endoplasmic reticulum in the jejunal cells of chickens exposed to AFB1 diet for 3 weeks...
October 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/29163648/fiber-gene-based-molecular-and-biological-characterization-of-hydropericardium-hepatitis-syndrome-associated-avian-adenoviruses
#12
S Yasmeen, N Siddique, M Athar Abbas, A Ali, S Rafique, F Rashid, A U Shah, F Mehmood, I Begum, T Javaid, S M H Jaffery, R Ali, Kh Naeem
This study was designed to perform biological and molecular characterization of avian adenoviruses (AAVs) recovered from suspected cases of hydropericardium-hepatitis syndrome (HHS) in commercial poultry. Initially the samples were screened by Agar Gel Precipitation Test (AGPT) for the presence of AAVs followed by its confirmation and typing through polymerase chain reaction (PCR) focusing on already reported serotypes AAV-4, AAV-8 and AAV-10 elsewhere. These PCR-positive samples were further subjected to amplification of fiber gene, followed by conducting restriction fragment length polymorphism (RFLP) using restriction enzyme Alu...
2017: Iranian journal of veterinary research
https://www.readbyqxmd.com/read/29163400/prevalence-and-antibiotic-resistance-of-non-typhoidal-salmonella-isolated-from-raw-chicken-carcasses-of-commercial-broilers-and-spent-hens-in-tai-an-china
#13
Song Li, Yufa Zhou, Zengmin Miao
The present study was aimed to determine the prevalence and characteristics of Salmonella isolated from meat samples of commercial broilers (CB) and spent hens (SH). Between March and June 2016, 200 retail raw chicken carcasses (100 from CB and 100 from SH) were obtained from local supermarkets in Tai'an city of China, and Salmonella isolates were then analyzed for antibiotic resistance, serotype, β-lactamase genes, and the presence of class 1 integron. Forty Salmonella strains were obtained in this study (CB: 21/100, 21%; SH: 19/100, 19%)...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29162488/transcription-analysis-of-the-interaction-between-chicken-thymus-and-recombinant-avian-leukosis-virus-isolate-fj15ht0
#14
Xiaoping Wu, Yukun Zeng, Rongbin Lu, Yajuan An, Shenyi Yu, Jinrong Zhao, Yijian Wu, Baocheng Wu, Quanxi Wang, Yifan Huang
Avian leukosis virus (ALV) induces multiple avian tumors, growth decrease and immune suppression. Previously, a novel natural recombinant ALV isolate FJ15HT0 was proven to be associated with significant body weight decrease, immune suppression and lymphocytoma in infected SPF chickens. In order to uncover the interaction between virus and host, we compared differences in the transcriptomes of the thymuses from the mock chickens and simulated congenitally infected chickens at 5days (d), 13d and 21d of age by RNA-seq analysis of the thymuses...
November 20, 2017: Virus Research
https://www.readbyqxmd.com/read/29162137/potentiating-angiogenesis-arrest-in-vivo-via-laser-irradiation-of-peptide-functionalised-gold-nanoparticles
#15
Pedro Pedrosa, Amelie Heuer-Jungemann, Antonios G Kanaras, Alexandra R Fernandes, Pedro V Baptista
BACKGROUND: Anti-angiogenic therapy has great potential for cancer therapy with several FDA approved formulations but there are considerable side effects upon the normal blood vessels that decrease the potential application of such therapeutics. Chicken chorioallantoic membrane (CAM) has been used as a model to study angiogenesis in vivo. Using a CAM model, it had been previously shown that spherical gold nanoparticles functionalised with an anti-angiogenic peptide can humper neo-angiogenesis...
November 21, 2017: Journal of Nanobiotechnology
https://www.readbyqxmd.com/read/29162033/identification-of-genome-wide-snp-snp-interactions-associated-with-important-traits-in-chicken
#16
Hui Zhang, Jia-Qiang Yu, Li-Li Yang, Luke M Kramer, Xin-Yang Zhang, Wei Na, James M Reecy, Hui Li
BACKGROUND: In addition to additive genetic effects, epistatic interactions can play key roles in the control of phenotypic variation of traits of interest. In the current study, 475 male birds from lean and fat chicken lines were utilized as a resource population to detect significant epistatic effects associated with growth and carcass traits. RESULTS: A total of 421 significant epistatic effects were associated with testis weight (TeW), from which 11 sub-networks (Sub-network1 to Sub-network11) were constructed...
November 21, 2017: BMC Genomics
https://www.readbyqxmd.com/read/29161408/landscape-of-dna-methylation-on-the-marsupial-x
#17
Shafagh A Waters, Alexandra M Livernois, Hardip Patel, Denis O'Meally, Jeff M Craig, Jennifer A Marshall Graves, Catherine M Suter, Paul D Waters
DNA methylation plays a key role in maintaining transcriptional silence on the inactive X chromosome of eutherian mammals. Beyond eutherians, there are limited genome wide data on DNA methylation from other vertebrates. Previous studies of X borne genes in various marsupial models revealed no differential DNA methylation of promoters between the sexes, leading to the conclusion that CpG methylation plays no role in marsupial X-inactivation. Using reduced representation bisulfite sequencing, we generated male and female CpG methylation profiles in four representative vertebrates (mouse, gray short-tailed opossum, platypus and chicken)...
November 17, 2017: Molecular Biology and Evolution
https://www.readbyqxmd.com/read/29161052/recurrent-anaphylaxis-in-patient-allergic-to-eggplant-a-case-study
#18
Natalia Ukleja-Sokołowska, Ewa Gawrońska-Ukleja, Magdalena Żbikowska-Gotz, Łukasz Sokołowski, Zbigniew Bartuzi
Eggplant allergy is rare and most of the previously described reactions were mild. In this case report, we present an interesting case of a 27-year-old male who experienced symptoms of anaphylaxis (shortness of breath, and swelling of the face, lips and tongue, which was followed by hypotension, tachycardia of 140/min and a sudden loss of consciousness) several minutes after eating a dish containing backed eggplant. Previously, the patient had experienced symptoms of allergy after eating different types of food, such as salad and chicken in spices...
November 22, 2017: Asian Pacific Journal of Allergy and Immunology
https://www.readbyqxmd.com/read/29158522/mir-17-5p-and-mir-20a-promote-chicken-cell-proliferation-at-least-in-part-by-upregulation-of-c-myc-via-map3k2-targeting
#19
Xiaofei Zhang, He Song, Shupei Qiao, Jing Liu, Tianyu Xing, Xiaohong Yan, Hui Li, Ning Wang
The miR-17-92 cluster has been well studied in mammals but less extensively studied in birds. Here, we demonstrated that miR-17-92 cluster overexpression promoted the proliferation of DF1 cells and immortalized chicken preadipocytes (ICPA-1), and miR-17-5p and miR-20a, members of the miR-17-92 cluster, targeted MAP3K2. Further analysis showed that MAP3K2 overexpression reduced the proliferation of DF1 and ICPA-1 cells and attenuated the promotive effect of the miR-17-92 cluster on cell proliferation. Downstream gene expression analysis of the MAPK signalling pathway showed that MAP3K2 overexpression decreased c-Myc expression; in contrast, MAP3K2 knockdown using RNA interference and miR-17-92 cluster overexpression increased c-Myc expression...
November 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29157881/deformation-of-avian-middle-ear-structures-under-static-pressure-loads-and-potential-regulation-mechanisms
#20
Raf Claes, Pieter G G Muyshondt, Joris J J Dirckx, Peter Aerts
Static pressure changes can alter the configuration and mechanical behavior of the chain of ossicles, which may affect the acoustic transfer function. In mammals, the Eustachian tube plays an important role in restoring ambient middle ear pressure, hence restoring the acoustic transfer function and excluding barotrauma of the middle and inner ear. Ambient pressure fluctuations can be potentially extreme in birds and due to the simple structure of the avian middle ear (one ossicle, one muscle), regulation of the middle ear pressure via reflexive opening of the pharyngotympanic tube appears all the more important...
November 7, 2017: Zoology: Analysis of Complex Systems, ZACS
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