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Nadège Aigueperse, Florent Pittet, Céline Nicolle, Cécilia Houdelier, Sophie Lumineau
Maternal behavior is known to influence the behavioral development of young. Recently, it was demonstrated that maternal behavior also differed according to sex chicks and brood sex composition. So, here, we explored if these factors influenced behavioral development of chicks quail when they were brooded, and what characteristics of chicks and foster females could best explain this development. We studied three sets of chick pairs brooded by foster females: unisex male, unisex female, and mixed broods. We found that both emotivity profile and sociality depended on the sex: females were more reactive and less social than males...
January 18, 2018: Developmental Psychobiology
Dillon T Fogarty, R Dwayne Elmore, Samuel D Fuhlendorf, Scott R Loss
Many terrestrial predators rely on olfaction to detect prey; therefore, prey should select habitat to reduce detectability of their odor cues. One way prey can potentially conceal their odor is by selecting locations with high turbulence and/or updrafts, conditions that disperse odor plumes and make odor sources difficult to locate. However, it is unclear how these conditions vary among vegetation cover types and which vegetative features drive them. We assessed variation and drivers of variables hypothesized to influence olfactory concealment (turbulence intensity and airflow slope) and experimentally evaluated whether these variables indeed influence predator detection of simulated prey...
January 17, 2018: Ecology
Mandana Behbahani, Mokhtar Nosrati, Hassan Mohabatkar
Lysozyme is a relatively small enzyme with different biological activities, which is found in tears, saliva, egg white, and human milk. In the study, the anti-HIV-1 activity of lysozymes purified from quail, Meleagris, and hen egg white has been determined. For this end, a time-of-drug-addition assay was performed to identify the target of anti-HIV-1 agents and for determination of probable anti HIV-1 mechanism of the studied lysozyme, the binding affinity of the lysozymes to the human CD4 receptor was studied by molecular docking method...
January 13, 2018: Applied Biochemistry and Biotechnology
Hannah M H Ertl, Miguel A Mora, Donald J Brightsmith, Jorge A Navarro-Alberto
The widespread use of neonicotinoid insecticides in recent years has led to increasing environmental concern, including impacts to avian populations. In Texas and across their range, Northern bobwhite (Colinus virginianus) habitat frequently overlaps cultivated cropland protected by neonicotinoids. To address the effects of neonicotinoid use on bobwhites in Texas, we conducted a historical analysis from 1978-2012 in Texas' ecological regions using quail count data collected from North American Breeding Bird Survey and Texas Parks and Wildlife Department, and neonicotinoid use data from the U...
2018: PloS One
Yingying Cao, Yaowei Huang, Ke Xu, Yuanhua Liu, Xuan Li, Ye Xu, Wu Zhong, Pei Hao
BACKGROUND: Innate immunity provides first line of defense against viral infections. The interactions between hosts and influenza A virus and the response of host innate immunity to viral infection are critical determinants for the pathogenicity or virulence of influenza A viruses. This study was designed to investigate global changes of gene expression and detailed responses of innate immune systems in human and avian hosts during the course of infection with various subtypes of influenza A viruses, using collected and self-generated transcriptome sequencing data from human bronchial epithelial (HBE), human tracheobronchial epithelial (HTBE), and A549 cells infected with influenza A virus subtypes, namely H1N1, H3N2, H5N1 HALo mutant, and H7N9, and from ileum and lung of chicken and quail infected with H5N1, or H5N2...
December 21, 2017: BMC Medical Genomics
Donald A Fowler, Michael B Filla, Charles D Little, Brenda J Rongish, Hans C E Larsson
Understanding the morphogenesis and differentiation of tissues and organs from progenitor fields requires methods to visualize this process. Despite an ever-growing recognition that ECM plays an important role in tissue development, studies of ECM movement, and patterns in live tissue are scarce. Here, we describe a method in which a living limb bud is immunolabeled prior to fixation using fluorescent antibodies that recognize two ECM constituents, fibronectin and fibrillin 2. The results show that undifferentiated mesenchyme in quail embryos can be distinguished from prechondrogenic cellular condensations, in situ, via ECM antibodies-indicating the developmental transition from naïve mesenchyme to committed skeletal tissue...
2018: Methods in Cell Biology
Andrew T Quaile, Peter J Stogios, Olga Egorova, Elena Evdokimova, Dylan Valleau, Boguslaw Nocek, Purnima S Kompella, Sergio Peisajovich, Alexander F Yakunin, Alexander W Ensminger, Alexei Savchenko
Host colonization by Gram negative pathogens often involves delivery of bacterial proteins called ″effectors″ into the host cell. The pneumonia-causing pathogen Legionella pneumophila delivers more than 330 effectors into the host cell via its type IVB Dot/Icm secretion system. The collective functions of these proteins is the establishment of a replicative niche from which Legionella can recruit cellular materials to grow while evading lysosomal fusion inhibiting its growth. Using a combination of structural, biochemical, and in vivo approaches, we show that one of these translocated effector proteins, Ceg4, is a phosphotyrosine phosphatase harboring a haloacid dehalogenase hydrolase domain...
January 4, 2018: Journal of Biological Chemistry
Guillermo J Ares, Steven J McElroy, Catherine J Hunter
Necrotizing enterocolitis (NEC) remains one of the highest causes of mortality and of acute and long-term morbidity in premature infants. Multiple factors are involved in the pathophysiology of NEC including the immaturity of the immune system and the complex changing composition of the intestinal microbiome. This is compounded by the fact that the premature infant should ideally still be a developing fetus and has an immature intestinal tract. Because these complexities are beyond the scope of studies in single-cell cultures, animal models are absolutely essential to understand the mechanisms involved in the pathophysiology of NEC and the effects of inflammation on the immature intestinal tract...
February 2018: Seminars in Pediatric Surgery
V Zancanela, A C Furlan, P C Pozza, S M Marcato, D O Grieser, C E Stanquevis, E M Finco, T M Oliveira-Bruxel, M F Z Ferreira
Two experiments were carried out to determine the levels of supplementation of inorganic selenium (Se) and vitamin E (VE) in diets of quails aged 0-14 and 14-35 days old. A completely randomized design was used in a factorial design (Se = 0.1125; 0.2250; 0.3375 and 0.4500 mg kg-1  diet-1  × VE = 10; 23; 36 and 49 IU kg-1  diet-1 ). In experiment 1, quail (n = 2,400) were aged 0-14 days and were divided into 16 treatments, with three replicates of 50 birds. In experiment 2, quail (n = 1,680) were aged 14-35 days and were divided into the same treatments, with three replicates of 35 birds...
December 17, 2017: Journal of Animal Physiology and Animal Nutrition
Zahra Derakhshan, Gea Oliveri Conti, Ali Heydari, Motahreh Sadat Hosseini, Fateme Akrami Mohajeri, Hamidreza Gheisari, Samane Kargar, Elham Karimi, Margherita Ferrantee
INTRODUCTION: Irradiation is one of the intervention strategies for effective control of food-borne pathogen microorganisms, which reduces microbial load and extends the meat shelf life. MATERIALS AND METHODS: This experimental study was carried out on quail meat. Quail meat samples were treated with electron beam irradiation at doses of 0.5, 1, and 3 kGy and stored at 4 ± 1 °C for 15 days. Five days after irradiation, the chemical and organoleptic changes in the quail meat were evaluated for 15 days...
December 14, 2017: Food and Chemical Toxicology
Heping Huangfu, Wenbo Xu, Hongkui Wang, Qing Dong, Hongwei Guo, Yanting Sun, Yunxia Li, Wenwen Gao, Wuqing Wang, Jia Zhang, Jingke Shi, Haochun Pan, Congcong Li, Linkang Wang
To better understand the prevalence of Gallibacterium anatis in different poultry species, a rapid and accurate method was developed to detect G. anatis using a TaqMan fluorescent quantitative polymerase chain reaction (qPCR). Specific primers and a TaqMan probe were designed based on the reference gtxA gene sequence. The qPCR standard curve showed a good linear relationship, and the method showed good reproducibility, sensitivity, and specificity, indicating its suitability for G. anatis identification and quantitative analysis...
December 15, 2017: Avian Pathology: Journal of the W.V.P.A
Saeed Yakhkeshi, Shaban Rahimi, Mohsen Sharafi, Seyedeh-Nafiseh Hassani, Sara Taleahmad, Abdolhossein Shahverdi, Hossein Baharvand
Avian primordial germ cells (PGCs) have valuable potentials to cell-based approaches for transgenic bird production. In this regard, improvement of avian PGC expansion in vitro is necessary. Among experimental avian species, quail is a good model for transgenic technology, especially due to its short generation time. In the present study, we have examined the proliferative effects of transforming growth factor β (TGF-β) on the quail PGCs. After isolation of quail PGCs from blood [Hamburger-Hamilton (HH stages 13-15)] and gonads (HH stages 28-30), these cells were cultured on quail embryonic fibroblasts (QEF)...
December 15, 2017: Journal of Cellular Biochemistry
Pablo Valverde-Garcia, Tim Springer, Vince Kramer, Manousos Foudoulakis, James R Wheeler
Avian reproduction studies are a regulatory requirement for pesticides in many regions. The data often require careful interpretation due to the nature of the study design. Here we present the historical control dataset for bobwhite quail and mallard duck reproduction studies performed at the Evans Analytical Group LLC avian toxicology laboratory over the period 1985-2016. The analysis demonstrates the stability of reproductive parameters over time and good agreement to normal control ranges as required by the regulatory test guidelines...
December 11, 2017: Regulatory Toxicology and Pharmacology: RTP
Keisuke Ikegami, Takashi Yoshimura
Thyroid hormones (TH) are important for development, growth, and metabolism. It is also clear that the synthesis and secretion of TH are regulated by the hypothalamic-pituitary-thyroid (HPT) axis. Animal models have helped advance our understanding of the roles and regulatory mechanisms of TH. The animals' bodies develop through coordinated timing of cell division and differentiation. Studies of frog metamorphosis led to the discovery of TH and their role in development. However, to adapt to rhythmic environmental changes, animals also developed various endocrine rhythms...
October 2017: Best Practice & Research. Clinical Endocrinology & Metabolism
Philip Lazarovici, Adi Lahiani, Galit Gincberg, Dikla Haham, Cezary Marcinkiewicz, Peter I Lelkes
The avian chorioallantoic membrane (CAM) is a simple, highly vascularized extraembryonic membrane, which performs multiple functions during embryonic development. Therefore, the models of chicken and quail assays represent robust experimental platforms to study angiogenesis, which reflects perturbation of the entire vascular tree. This experimental approach, when combined with fractal morphometry, is sensitive to changes in vascular branching pattern and density. Nerve growth factor is a neurotrophin promoting angiogenesis in CAM models...
2018: Methods in Molecular Biology
Wentao Shi, Andrea Massaia, Sandra Louzada, Ruby Banerjee, Pille Hallast, Yuan Chen, Anders Bergström, Yong Gu, Steven Leonard, Michael A Quail, Qasim Ayub, Fengtang Yang, Chris Tyler-Smith, Yali Xue
We describe the variation in copy number of a ~ 10 kb region overlapping the long intergenic noncoding RNA (lincRNA) gene, TTTY22, within the IR3 inverted repeat on the short arm of the human Y chromosome, leading to individuals with 0-3 copies of this region in the general population. Variation of this CNV is common, with 266 individuals having 0 copies, 943 (including the reference sequence) having 1, 23 having 2 copies, and two having 3 copies, and was validated by breakpoint PCR, fibre-FISH, and 10× Genomics Chromium linked-read sequencing in subsets of 1234 individuals from the 1000 Genomes Project...
December 5, 2017: Human Genetics
M Farzaneh, F Attari, S E Khoshnam, P E Mozdziak
1. The unique accessibility of the avian embryo have made them an ideal model for the study of development and genome editing. Chicken whole embryo culture has provided important insights into toxicity tests, gene manipulation, clarifying gene functions, cell transplantation, and cell tracking. 2. A simple technique for chicken manipulation is eggshell windowing, without or with seal, the latter having demonstrated some improvement in hatching rates. 3. Likewise, a surrogate eggshell system provides an accessible model for manipulation during chicken and quail development, with a higher hatchability compared to the simple windowing method...
December 5, 2017: British Poultry Science
M Akashi, S Sato
No abstract text is available yet for this article.
2017: Journal of Investigational Allergology & Clinical Immunology
Somanshu Banerjee, Chandra Mohini Chaturvedi
The hypothalamo-hypophyseal-gonadal axis mediated differential photosexual responses in quail kept under different simulated photoperiodic conditions have been studied in details. Local testicular GnRH-GnIH and their receptor system has been hypothesized to be modulated in quail showing different photo-sexual responses and thus influence the testicular activity and steroidogenesis through local (paracrine and autocrine) action. To validate this hypothesis, we studied the expression of gonadotropin releasing hormone receptor (GnRH-R), gonadotropin inhibiting hormone receptor (GnIH-R) mRNA, growth hormone receptor (GH-R), proliferating cell nuclear antigen (PCNA), 14-3-3, Connexin-43 (Cnx-43), steroidogenic factor-1 (SF-1), Steroidogenic Acute Regulatory protein (StAR), steroidogenic enzyme (3β HSD) in testis as well as androgen receptor (AR) in testis and epididymis of photosensitive (PS), scotorefractory (SR), photorefractory (PR) and scotosensitive (SS) quail...
November 30, 2017: Journal of Photochemistry and Photobiology. B, Biology
Oakley C Olson, Daniela F Quail, Johanna A Joyce
No abstract text is available yet for this article.
December 1, 2017: Science
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