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https://www.readbyqxmd.com/read/29352509/molecular-evidence-to-suggest-pigeon-type-chlamydia-psittaci-in-association-with-an-equine-foal-loss
#1
M Jelocnik, C Jenkins, B O'Rourke, J Barnwell, A Polkinghorne
Chlamydia psittaci is an important avian pathogen with spillover from infected wild and domesticated birds also posing a risk to human health. We recently reported a case of C. psittaci equine placentitis associated with further spillover to humans. Molecular typing of this case revealed it belonged to the 6BC clade of C. psittaci, a globally distributed highly virulent set of strains, typically linked to infection spillover from parrots. Equine chlamydiosis associated with C. psittaci infection has previously been reported elsewhere in countries where parrots are not endemic, however, raising questions over the identity of infecting C...
January 19, 2018: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/29352371/innate-and-adaptive-t-cells-in-influenza-disease
#2
REVIEW
Simone Nüssing, Sneha Sant, Marios Koutsakos, Kanta Subbarao, Thi H O Nguyen, Katherine Kedzierska
Influenza is a major global health problem, causing infections of the respiratory tract, often leading to acute pneumonia, life-threatening complications and even deaths. Over the last seven decades, vaccination strategies have been utilized to protect people from complications of influenza, especially groups at high risk of severe disease. While current vaccination regimens elicit strain-specific antibody responses, they fail to generate cross-protection against seasonal, pandemic and avian viruses. Moreover, vaccines designed to generate influenza-specific T-cell responses are yet to be optimized...
January 20, 2018: Frontiers of Medicine
https://www.readbyqxmd.com/read/29351969/avian-influenza-cases-confirmed-in-dorset
#3
(no author information available yet)
No abstract text is available yet for this article.
January 20, 2018: Veterinary Record
https://www.readbyqxmd.com/read/29351671/a-novel-non-invasive-method-for-evaluating-electroencephalograms-on-laying-hens
#4
Krista N Eberle, Michael P Martin, Sanjay Shah, Ramon D Malheiros, Kimberly A Livingston, Kenneth E Anderson
The use of electroencephalograms (EEG) to study the avian brain relative to behavior was conducted as early as the 1960's. EEG readings, combined with visual cues, provide the ability to elucidate and correlate behaviors to neurological and physiological changes in a chicken. The use of EEG recordings in animal models require access to the brain to implant electrodes. Having the ability to observe EEG activity on sensible birds without surgical implantation could broaden the research in this area and give further insight related to the hen's state of awareness...
January 17, 2018: Poultry Science
https://www.readbyqxmd.com/read/29351548/common-cuckoos-cuculus-canorus-affect-the-bacterial-diversity-of-the-eggshells-of-their-great-reed-warbler-acrocephalus-arundinaceus-hosts
#5
Nikoletta Geltsch, Zoltán Elek, László Manczinger, Csaba Vágvölgyi, Csaba Moskát
The common cuckoo (Cuculus canorus) is an avian brood parasite, laying its eggs in the nests of other bird species, where these hosts incubate the parasitic eggs, feed and rear the nestlings. The appearance of a cuckoo egg in a host nest may change the bacterial community in the nest. This may have consequences on the hatchability of host eggs, even when hosts reject the parasitic egg, typically within six days after parasitism. The present study revealed the bacterial community of cuckoo eggshells and those of the great reed warbler (Acrocephalus arundinaceus), one of the main hosts of cuckoos...
2018: PloS One
https://www.readbyqxmd.com/read/29351308/skin-transcriptome-reveals-the-dynamic-changes-in-the-wnt-pathway-during-integument-morphogenesis-of-chick-embryos
#6
Husile Gong, Hong Wang, YueXing Wang, Xue Bai, Bin Liu, JinFeng He, JiangHong Wu, WangMei Qi, WenGuang Zhang
Avian species have a unique integument covered with feathers. Skin morphogenesis is a successive and complex process. To date, most studies have focused on a single developmental point or stage. Fewer studies have focused on whole transcriptomes based on the time-course of embryo integument development. To analyze the global changes in gene expression profiles, we sequenced the transcriptome of chicken embryo skin samples from day 6 to day 21 of incubation and identified 5830 differentially expressed genes (DEGs)...
2018: PloS One
https://www.readbyqxmd.com/read/29351010/using-human-vision-to-detect-variation-in-avian-coloration-how-bad-is-it
#7
Zachary T Bergeron, Rebecca C Fuller
Assessing variation in animal coloration is difficult, as animals differ in their visual system properties. This has led some to propose that human vision can never be used to evaluate coloration, yet many studies have a long history of relying on human vision. To reconcile these views, we compared the reflectance spectra of preserved avian plumage elements with two measures that are human biased: RGB values from digital photographs and the corresponding reflectance spectra from a field guide. We measured 73 plumage elements across 14 bird species...
February 2018: American Naturalist
https://www.readbyqxmd.com/read/29350925/exposure-to-dietary-methyl-mercury-solely-during-embryonic-and-juvenile-development-halves-subsequent-reproductive-success-in-adult-zebra-finches
#8
Ohad J Paris, John P Swaddle, Daniel A Cristol
Long-term exposure to methyl-mercury has deleterious effects on avian reproduction. However, little is known about whether exposure to mercury solely during embryonic and juvenile development can have long-lasting effects on subsequent reproductive performance as adults. Birds that hatch on contaminated sites, but disperse elsewhere, will be exposed only during development. Hence, it is important to understand the reproductive consequences of avian exposure to methyl-mercury during early life. Accordingly, in this experiment, domesticated zebra finches (Taeniopygia guttata) were exposed to dietary methyl-mercury (1...
January 19, 2018: Environmental Science & Technology
https://www.readbyqxmd.com/read/29350422/potency-of-polycyclic-aromatic-hydrocarbons-pahs-in-chicken-and-japanese-quail-embryos
#9
Cynthia D Franci, Angelika Aleksieva, Emily Boulanger, Jonas Brandenburg, Theresa Johnston, Asya Malinova, Jessica A Head
Birds are receptors of concern for polycyclic aromatic hydrocarbons (PAHs), and yet limited data describing the relative potency of PAH congeners are available for avian species. Here, we determine embryonic LD50 values for 5 PAH congeners in chicken (Gallus gallus) and one PAH congener in Japanese quail (Coturnix japonica). Graded concentrations of each test compound were injected into the air cell of chicken or quail eggs before incubation. Embryos were monitored through development (quail) or hatching (chicken)...
January 19, 2018: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/29350169/containment-of-highly-pathogenic-avian-influenza-a-h5n1-virus-lebanon-20161
#10
Zeina E Farah, Omaya Khatib, Sahar Hamadeh, Khadija Ahmad, Bassel El Bazzal, Pierre Zalloua, Walid Ammar, Nada Ghosn
A preparedness plan for avian influenza A(H5N1) virus infection was activated in Lebanon in 2016 after reported cases in poultry. Exposed persons were given prophylaxis and monitored daily. A total of 185 exposed persons were identified: 180 received prophylaxis, 181 were monitored, and 41 suspected cases were reported. All collected specimens were negative for virus by PCR.
February 2018: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/29350071/disclosing-respiratory-coinfections-a-broad-range-panel-assay-for-avian-respiratory-pathogens-on-a-nanofluidic-pcr-platform
#11
Guillaume Croville, Charlotte Foret, Pauline Heuillard, Alexis Senet, Mattias Delpont, Mohammed Mouahid, Mariette F Ducatez, Faouzi Kichou, Jean-Luc Guerin
Respiratory syndromes (RS) are among the most significant pathological conditions in food animals and are caused by complex coactions of pathogens and environmental factors. In poultry, low pathogenic avian Influenza A viruses, metapneumoviruses, infectious bronchitis virus, infectious laryngotracheitis virus, Mycoplasma spp. Escherichia coli and/or Ornithobacterium rhinotracheale (ORT) in turkeys, are considered as key co-infectious agents of respiratory syndromes. Aspergillus sp., Pasteurella multocida, Avibacterium paragallinarum or Chlamydia psittaci may also be involved in respiratory outbreaks...
January 19, 2018: Avian Pathology: Journal of the W.V.P.A
https://www.readbyqxmd.com/read/29349785/a-novel-mlph-variant-in-dogs-with-coat-colour-dilution
#12
A Bauer, A Kehl, V Jagannathan, T Leeb
Coat colour dilution may be the result of altered melanosome transport in melanocytes. Loss-of-function variants in the melanophilin gene (MLPH) cause a recessively inherited form of coat colour dilution in many mammalian and avian species including the dog. MLPH corresponds to the D locus in many domestic animals, and recessive alleles at this locus are frequently denoted with d. In this study, we investigated dilute coloured Chow Chows whose coat colour could not be explained by their genotype at the previously known MLPH:c...
January 19, 2018: Animal Genetics
https://www.readbyqxmd.com/read/29348463/the-bone-microstructure-of-polar-hypsilophodontid-dinosaurs-from-victoria-australia
#13
Holly N Woodward, Thomas H Rich, Patricia Vickers-Rich
High-latitude (i.e., "polar") Mesozoic fauna endured months of twilight and relatively low mean annual temperatures. Yet non-avian dinosaurs flourished in this taxing environment. Fossils of basal ornithopod dinosaurs ("hypsilophodontids") are common in the Early Cretaceous high-latitude sediments of Victoria, Australia, and four taxa have been described; although their ontogenetic histories are largely unexplored. In the present study, eighteen tibiae and femora were utilized in the first multi-specimen ontogenetic histological analysis of Australian polar hypsilophodontids...
January 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29348457/ltbp3-promotes-early-metastatic-events-during-cancer-cell-dissemination
#14
Elena I Deryugina, Ewa Zajac, Lior Zilberberg, Tomoki Muramatsu, Grishma Joshi, Branka Dabovic, Daniel Rifkin, James P Quigley
Latent transforming growth factor β (TGFβ)-binding proteins (LTBPs) are important for the secretion, activation, and function of mature TGFβ, especially so in cancer cell physiology. However, specific roles of the LTBPs remain understudied in the context of the primary tumor microenvironment. Herein, we investigated the role of LTBP3 in the distinct processes involved in cancer metastasis. By using three human tumor cell lines of different tissue origin (epidermoid HEp-3 and prostate PC-3 carcinomas and HT-1080 fibrosarcoma) and several metastasis models conducted in both mammalian and avian settings, we show that LTBP3 is involved in the early dissemination of primary cancer cells, namely in the intravasation step of the metastatic cascade...
January 19, 2018: Oncogene
https://www.readbyqxmd.com/read/29347990/establishment-of-an-in-vitro-chicken-epithelial-cell-line-model-to-investigate-eimeria-tenella-gamete-development
#15
Françoise I Bussière, Alisson Niepceron, Alix Sausset, Evelyne Esnault, Anne Silvestre, Robert A Walker, Nicholas C Smith, Pascale Quéré, Fabrice Laurent
BACKGROUND: Eimeria tenella infection leads to acute intestinal disorders responsible for important economic losses in poultry farming worldwide. The life-cycle of E. tenella is monoxenous with the chicken as the exclusive host; infection occurs in caecal epithelial cells. However, in vitro, the complete life-cycle of the parasite has only been propagated successfully in primary chicken kidney cells, which comprise undefined mixed cell populations; no cell line model has been able to consistently support the development of the sexual stages of the parasite...
January 18, 2018: Parasites & Vectors
https://www.readbyqxmd.com/read/29346738/first-record-of-leucocytozoon-haemosporida-leucocytozoidae-in-amazonia-evidence-for-rarity-in-neotropical-lowlands-or-lack-of-sampling-for-this-parasite-genus
#16
Alan Fecchio, Patricia Silveira, Jason Weckstein, Janice Dispoto, Marina Anciães, Mariane Bosholn, Vasyl Tkach, Jeffrey Bell
Birds harbor an astonishing diversity of haemosporidian parasites belonging to the genera Haemoproteus, Leucocytozoon, and Plasmodium. Currently there are over 250 morphologically described avian haemosporidian species and 2828 unique lineages infecting virtually all avian clades and zoogeographic regions, except for Antarctica. Our report is based on PCR and microscopic screening of 1302 individual avian samples from Brazil to detect the underrepresented genus Leucocytozoon. This survey primarily focuses on passerine birds collected from Amazonia, Atlantic Rain Forest, and Pantanal...
January 18, 2018: Journal of Parasitology
https://www.readbyqxmd.com/read/29346050/diagnosis-and-management-of-inflammatory-bowel-disease-in-a-harpy-eagle-harpia-harpyja-with-suspected-fenbendazole-toxicosis
#17
Grayson A Doss, Christoph Mans, Laura Johnson, Marie E Pinkerton, Robert J Hardie, Kurt K Sladky
CASE DESCRIPTION A 14-year-old 4.1-kg (9.02-lb) male harpy eagle (Harpia harpyja) was evaluated because of vomiting, anorexia, lethargy, and weight loss (decrease of 0.35 kg [0.77 lb]) of 4 weeks' duration. The bird had previously been treated orally with fenbendazole after the initial onset of clinical signs. CLINICAL FINDINGS An initial CBC revealed marked heteropenia and anemia, but whole-body contrast-enhanced CT images and other diagnostic test findings were unremarkable. Clinical signs persisted, and additional diagnostic testing failed to reveal the cause...
February 1, 2018: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/29346044/clinical-features-treatment-and-outcomes-of-cutaneous-and-oral-squamous-cell-carcinoma-in-avian-species
#18
Ashley M Zehnder, Laura A Swift, Ash Sundaram, Brian L Speer, Geoff P Olsen, Michelle G Hawkins, Joanne Paul-Murphy
OBJECTIVE To determine the clinical features, treatment, and outcomes of treatment for oral and cutaneous squamous cell carcinoma (SCC) in avian species. DESIGN Retrospective case series with nested cohort study. ANIMALS 87 client-owned birds of various species with histologically confirmed SCC of the skin or oral cavity. PROCEDURES Clinicians entered case information through an online survey tool. Data were collected regarding patient signalment, concurrent conditions, treatments, adverse effects, and clinical outcomes...
February 1, 2018: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/29343605/experimental-heatwaves-negatively-impact-sperm-quality-in-the-zebra-finch
#19
Laura L Hurley, Callum S McDiarmid, Christopher R Friesen, Simon C Griffith, Melissah Rowe
For sexually reproducing species, functionally competent sperm are critical to reproduction. While high atmospheric temperatures are known to influence the timing of breeding, incubation and reproductive success in birds, the effect of temperature on sperm quality remains largely unexplored. Here, we experimentally investigated the impact of ecologically relevant extreme temperatures on cloacal temperature and sperm morphology and motility in zebra finches Taeniopygia guttata We periodically sampled males exposed to 30°C or 40°C temperatures daily for 14 consecutive days...
January 31, 2018: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/29341432/duck-beak-atrophy-and-dwarfism-syndrome-disease-complex-interplay-of-novel-goose-parvovirus-related-virus-and-duck-circovirus
#20
P Li, J Li, R Zhang, J Chen, W Wang, J Lan, Z Xie, S Jiang
As a newly emerged infectious disease, duck "beak atrophy and dwarfism syndrome (BADS)" disease has caused huge economic losses to waterfowl industry in China since 2015. Novel goose parvovirus-related virus (NGPV) is believed the main pathogen of BADS disease; however, BADS is rarely reproduced by infecting ducks with NGPV alone. As avian circovirus infection causes clinical symptoms similar to BADS, duck circovirus (DuCV) is suspected the minor pathogen of BADS disease. In this study, an investigation was carried out to determine the coinfection of NGPV and DuCV in duck embryos and in ducks with BADS disease...
January 16, 2018: Transboundary and Emerging Diseases
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