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https://www.readbyqxmd.com/read/29667421/associations-between-variants-of-bone-morphogenetic-protein-7-gene-and-growth-traits-in-chickens
#1
Yan Wang, Fuyou Guo, Hao Qu, Chenglong Luo, Jie Wang, Dingming Shu
1. Enhancing bone strength to solve leg disorders in poultry has become an important goal in broiler production. 2. Bone morphogenetic protein 7 (BMP7), a member of the BMP family, represents an attractive therapeutic target for bone regeneration in humans and plays critical roles in skeletal development. 3. The objective of this study was to investigate the relationship between BMP7 gene expression, single nucleotide polymorphisms (SNPs) and growth traits in chickens. Here, a SNP (c.1995T>C) in the chicken (Gallus gallus) BMP7 gene was identified, that was associated with growth and carcass traits...
April 18, 2018: British Poultry Science
https://www.readbyqxmd.com/read/29666334/oestrogen-regulates-the-expression-of-cathepsin-e-a-like-gene-through-er%C3%AE-in-liver-of-chicken-gallus-gallus
#2
Hang Zheng, Hong Li, Wenbo Tan, Chunlin Xu, Lijuan Jia, Dandan Wang, Zhuanjian Li, Gunrong Sun, Xiangtao Kang, Fengbin Yan, Xiaojun Liu
The cathepsin E-A-like, also known as 'similar to nothepsin', is a new member of the aspartic protease family, which may take part in processing of egg yolk macromolecules, due to it was identified in the chicken egg-yolk. Previously, studies have suggested that the expression of cathepsin E-A-like increased gradually during sexual maturation of pullets, but the exact regulation mechanism is poorly understood. In this study, to gain insight into the function and regulation mechanism of the gene in egg-laying hen, we cloned the cathepsin E-A-like gene and evaluated its evolutionary origin by using both phylogenetic and syntenic methods...
March 2018: Journal of Genetics
https://www.readbyqxmd.com/read/29658387/identification-of-avian-vasotocin-receptor-subtype-specific-antagonists-involved-in-the-stress-response-of-the-chicken-gallus-gallus
#3
Seong W Kang, Srinivas Jayanthi, Gurueswar Nagarajan, Thallapuranam Krishnaswamy Suresh Kumar, Wayne J Kuenzel
Vasotocin 1a and 1b receptors (V1aR and V1bR) have been shown to play important roles in the neuroendocrine regulation of stress responses via the anterior pituitary (AP) of birds. To identify effective subtype-specific antagonists for the chicken V1aR (cV1aR) and cV1bR, potential antagonists to the mammalian V1R were screened against the cV1aR and cV1bR 3D structural models by molecular docking analysis with determination of binding pocket / amino acid residues involved in the interaction. The antagonistic effects of the selected ligands were examined by measuring pro-opiomelanocortin (POMC) heteronuclear RNA (hnPOMC) levels following the in vitro stress administration to primary chicken AP cells...
April 16, 2018: Journal of Biomolecular Structure & Dynamics
https://www.readbyqxmd.com/read/29657258/heat-not-burn-tobacco-products-are-getting-hot-in-italy
#4
Xiaoqiu Liu, Alessandra Lugo, Lorenzo Spizzichino, Takahiro Tabuchi, Giuseppe Gorini, Silvano Gallus
No abstract text is available yet for this article.
April 14, 2018: Journal of Epidemiology
https://www.readbyqxmd.com/read/29642853/a-comparative-genomics-study-of-carbohydrate-glucose-metabolic-genes-from-fish-to-mammals
#5
Yuru Zhang, Chaobin Qin, Liping Yang, Ronghua Lu, Xiaoyan Zhao, Guoxing Nie
BACKGROUND: Glucose plays a key role as an energy source in most mammals, but its importance in fish appears to be limited that so far seemed to belong to diabetic humans only. Several laboratories worldwide have made important efforts in order to better understand this strange phenotype observed in fish. However, the mechanism of carbohydrate/glucose metabolism is astonishingly complex. Why basal glycaemia is different between fish and mammals and how carbohydrate metabolism is different amongst organisms is largely uncharted territory...
April 11, 2018: BMC Genomics
https://www.readbyqxmd.com/read/29642668/effect-of-increasing-levels-of-apparent-metabolizable-energy-on-laying-hens-in-barn-system
#6
Hwan Ku Kang, Seong Bok Park, Jin Joo Jeon, Hyun Soo Kim, Ki Tae Park, Sang Ho Kim, Eui Chul Hong, Chan Ho Kim
Objective: This experiment was to investigate the effect of increasing levels of apparent metabolizable energy (AMEn) on the laying performance, egg quality, blood parameter, blood biochemistry, intestinal morphology, and apparent total tract digestibility (ATTD) of energy and nutrients in diets fed to laying hens. Methods: A total of three-hundred twenty 33-week-old Hy-Line Brown laying hens (Gallus domesticus) were evenly assigned to four experimental diets of 2,750, 2,850, 2,950, and 3,050 kcal AMEn/kg in floor with deep litter of rice hulls...
April 12, 2018: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/29627451/regulation-and-function-of-avian-selenogenome
#7
REVIEW
Shuping Li, Fei Gao, Jiaqiang Huang, Yuanyuan Wu, Sen Wu, Xin Gen Lei
BACKGROUND: Selenium (Se) is an essential micronutrient required by avian species. Dietary Se/vitamin E deficiency induces three classical diseases in chicks: exudative diathesis, nutritional pancreatic atrophy, and nutritional muscular dystrophy. SCOPE OF REVIEW: This review is to summarize and analyze the evolution, regulation, and function of avian selenogenome and selenoproteome and their relationship with the three classical Se/vitamin E deficiency diseases...
April 5, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29614966/molecular-signatures-of-epithelial-oviduct-cells-of-a-laying-hen-gallus-gallus-domesticus-and-quail-coturnix-japonica
#8
Katarzyna Stadnicka, Anna Sławińska, Aleksandra Dunisławska, Bertrand Pain, Marek Bednarczyk
BACKGROUND: In this work we have determined molecular signatures of oviduct epithelial and progenitor cells. We have proposed a panel of selected marker genes, which correspond with the phenotype of oviduct cells of a laying hen (Gallus gallus domesticus) and quail (Coturnix japonica). We demonstrated differences in characteristics of those cells, in tissue and in vitro, with respect to different anatomical and functional parts of the oviduct (infundibulum (INF), distal magnum (DM, and proximal magnum (PM))...
April 4, 2018: BMC Developmental Biology
https://www.readbyqxmd.com/read/29611637/temporospatial-study-of-hexose-transporters-and-mucin-in-the-epithelial-cells-of-chicken-gallus-gallus-domesticus-small-intestine
#9
P Hussar, M Kaerner, I Duritis, A Plivca, L Pendovski, T Jaerveots, F Popovska-Percinic
The temporospatial patterns in the localization of hexose transporters as well as in the quantitative and qualitative differences of glycoprotein mucin produced by the goblet cells of broiler chicken (Gallus gallus domesticus) small intestine during their first postnatal month were studied. The integral membrane proteins glucose transporter-2 and -5 (GLUT-2 and GLUT-5) that facilitate the transport of hexoses across epithelial cell layers that separate distinct compartments in organism were detected in the chicken intestinal epithelial cells using immunohistochemical labeling with polyclonal primary antibodies Rabbit anti-GLUT-2 and Rabbit anti-GLUT-5 (IHC kit, Abcam, UK)...
December 2017: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/29599444/environmental-complexity-buffers-against-stress-induced-negative-judgement-bias-in-female-chickens
#10
Josefina Zidar, Irene Campderrich, Emelie Jansson, Anette Wichman, Svante Winberg, Linda Keeling, Hanne Løvlie
Cognitive processes are often biased by emotions. In humans, affective disorders are accompanied by pessimistic judgement, while optimistic judgement is linked to emotional stability. Similar to humans, animals tend to interpret ambiguous stimuli negatively after experiencing stressful events, although the long-lasting impact on judgement bias has rarely been investigated. We measure judgement bias in female chicks (Gallus gallus domesticus) after exposure to cold stress, and before and after exposure to additional unpredictable stressors...
March 29, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29599004/pathology-and-distribution-of-velogenic-viscerotropic-newcastle-disease-virus-in-the-reproductive-system-of-vaccinated-and-unvaccinated-laying-hens-gallus-gallus-domesticus-by-immunohistochemical-labelling
#11
A O Igwe, C L Afonso, W S Ezema, C C Brown, J O A Okoye
This study investigated the pathological changes in the reproductive system of laying hens that lead to the poor egg production and quality in Newcastle disease (ND) and the distribution of the virus in the system. Two hundred and forty Isa-Brown pullets were divided randomly into vaccinated and unvaccinated groups (n = 120 each). The vaccinated group was given Hitchner B1 vaccine at 1 day of age, La Sota vaccine at 4 weeks of age and Komarov vaccine at 9 and 16 weeks of age. At the peak of egg production, the laying hens (32 weeks old) were assigned randomly into four groups (n = 60): VC, vaccinated with ND vaccines and inoculated intramuscularly with velogenic viscerotropic ND virus (vvNDV); VU, vaccinated unchallenged; UC, unvaccinated challenged; and UU, unvaccinated unchallenged...
February 2018: Journal of Comparative Pathology
https://www.readbyqxmd.com/read/29597266/the-in-ovo-feeding-administration-gallus-gallus-an-emerging-in-vivo-approach-to-assess-bioactive-compounds-with-potential-nutritional-benefits
#12
REVIEW
Tao Hou, Elad Tako
In recent years, the in ovo feeding in fertilized broiler ( Gallus gallus ) eggs approach was further developed and currently is widely applied in the evaluation process of the effects of functional foods (primarily plant origin compounds) on the functionality of the intestinal brush border membrane, as well as potential prebiotic properties and interactions with the intestinal microbial populations. This review collates the information of potential nutrients and their effects on the mineral absorption, gut development, brush border membrane functionality, and immune system...
March 28, 2018: Nutrients
https://www.readbyqxmd.com/read/29596926/effects-of-prenatal-exposure-to-triclosan-on-the-liver-transcriptome-in-chicken-embryos
#13
Jiahua Guo, Shohei Ito, Hoa Thanh Nguyen, Kimika Yamamoto, Rumi Tanoue, Tatsuya Kunisue, Hisato Iwata
Triclosan (TCS), a commonly used antimicrobial compound, has recently been detected in the eggs of wild avian species. Exposure to TCS in rodents is known to interfere with thyroid hormone (TH), disrupt immune responses and cause liver disease. However, no attempt has made to clarify the effects of TCS in avian species. The aim of this study is therefore to evaluate the toxic effects of in ovo exposure to TCS and explore the molecular mechanism by transcriptome analysis in the embryonic liver of a model avian species, chicken (Gallus gallus)...
March 26, 2018: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/29596370/production-characterization-and-biocompatibility-evaluation-of-collagen-membranes-derived-from-marine-sponge-chondrosia-reniformis-nardo-1847
#14
Marina Pozzolini, Sonia Scarfì, Lorenzo Gallus, Maila Castellano, Silvia Vicini, Katia Cortese, Maria Cristina Gagliani, Marco Bertolino, Gabriele Costa, Marco Giovine
Collagen is involved in the formation of complex fibrillar networks, providing the structural integrity of tissues. Its low immunogenicity and mechanical properties make this molecule a biomaterial that is extremely suitable for tissue engineering and regenerative medicine (TERM) strategies in human health issues. Here, for the first time, we performed a thorough screening of four different methods to obtain sponge collagenous fibrillar suspensions (FSs) from C. reniformis demosponge, which were then chemically, physically, and biologically characterized, in terms of protein, collagen, and glycosaminoglycans content, viscous properties, biocompatibility, and antioxidant activity...
March 29, 2018: Marine Drugs
https://www.readbyqxmd.com/read/29595407/chlamydiosis-in-backyard-chickens-gallus-gallus-in-italy
#15
Manuela Donati, Karine Laroucau, Alessandro Guerrini, Andrea Balboni, Daniela Salvatore, Elena Catelli, Caterina Lupini, Aurora Levi, Antonietta Di Francesco
Until recently, Chlamydia psittaci was considered to be the only etiological agent of avian chlamydiosis, but two new avian species, Chlamydia gallinacea and Chlamydia avium, have recently been described in poultry and pigeons or psittacine birds, respectively. The aim of this study was to explore the occurrence of C. psittaci and C. gallinacea in backyard chickens in Italy. Cloacal swabs were taken from 160 asymptomatic chickens reared in 16 backyard farms. Samples were tested for C. psittaci and C. gallinacea by specific real-time polymerase chain reaction assays, with 24 (15%) of the 160 chickens resulting positive for C...
April 2018: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/29584697/karyotype-evolution-in-birds-from-conventional-staining-to-chromosome-painting
#16
REVIEW
Rafael Kretschmer, Malcolm A Ferguson-Smith, Edivaldo Herculano Correa de Oliveira
In the last few decades, there have been great efforts to reconstruct the phylogeny of Neoaves based mainly on DNA sequencing. Despite the importance of karyotype data in phylogenetic studies, especially with the advent of fluorescence in situ hybridization (FISH) techniques using different types of probes, the use of chromosomal data to clarify phylogenetic proposals is still minimal. Additionally, comparative chromosome painting in birds is restricted to a few orders, while in mammals, for example, virtually all orders have already been analyzed using this method...
March 27, 2018: Genes
https://www.readbyqxmd.com/read/29582488/binaural-responses-in-the-auditory-midbrain-of-chicken-gallus-gallus
#17
Roberta Aralla, Go Ashida, Christine Köppl
The auditory midbrain is the location in which neurons represent binaural acoustic information necessary for sound localization. The external nucleus of the midbrain inferior colliculus (IC) of the barn owl is a classic example of an auditory space map, but it is unknown to what extent the principles underlying its formation generalize to other, less specialized animals. We characterized the spiking responses of 139 auditory neurons in the IC of the chicken (Gallus gallus) in vivo, focusing on their sensitivities to the binaural localization cues of interaural time (ITD) and level (ILD) differences...
March 26, 2018: European Journal of Neuroscience
https://www.readbyqxmd.com/read/29574691/rapid-plasticity-attenuation-soon-after-birth-revealed-by-habituation-in-newborn-chicks
#18
Cinzia Chiandetti, Andrea Dissegna, Massimo Turatto
Habituation reflects a form of experience-dependent plasticity whereby the organism progressively learns to ignore the irrelevant information repeatedly encountered. Here, we measured the freezing response to a repeated loud noise in three groups of newborn chicks (Gallus gallus) of different ages (1-2 Day old, 2-3 Day old, and 3-4 Day old) to investigate the ontogeny of habituation in this avian species. Habituation was already present 1 Day after hatching, revealing that the neural mechanisms underlying this form of plasticity are immediately active...
March 25, 2018: Developmental Psychobiology
https://www.readbyqxmd.com/read/29569873/the-earthworm-dendrobaena-veneta-annelida-a-new-experimental-organism-for-photobiomodulation-and-wound-healing
#19
Andrea Amaroli, Sara Ferrando, Marina Pozzolini, Lorenzo Gallus, Steven Parker, Stefano Benedicenti
Photobiomodulation (PBM) is a manipulation of cellular behavior using non-ablative low intensity light sources. This manipulation triggers a cascade of metabolic effects and physiological changes resulting in improved tissue repair, of benefit in the treatment of tissue injury, degenerative or autoimmune diseases. PBM has witnessed an exponential increase in both clinical instrument technology and applications. It is therefore of benefit to find reliable experimental models to test the burgeoning laser technology for medical applications...
February 9, 2018: European Journal of Histochemistry: EJH
https://www.readbyqxmd.com/read/29569195/alterations-of-antioxidant-indexes-and-inflammatory-cytokine-expression-aggravated-hepatocellular-apoptosis-through-mitochondrial-and-death-receptor-dependent-pathways-in-gallus-gallus-exposed-to-arsenic-and-copper
#20
Juanjuan Liu, Hongjing Zhao, Yu Wang, Yizhi Shao, Jinglun Li, Mingwei Xing
In this study, we sought to investigate the effects of sub-chronic exposure of arsenic (As) and copper (Cu) on oxidative stress, inflammatory response, and mitochondria and death receptor apoptosis pathways in chicken liver. Seventy-two 1-day-old male Hy-line chickens were treated with basal diet, 30 mg/kg arsenic trioxide (As2 O3 ), or/and 300 mg/kg copper sulfate (CuSO4 ) for 4, 8, and 12 weeks. Study revealed that exposure to As or/and Cu undermined the antioxidant function and increased lipid peroxidation...
March 22, 2018: Environmental Science and Pollution Research International
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