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https://www.readbyqxmd.com/read/28644089/evaluation-of-high-dosages-of-oral-meloxicam-in-american-kestrels-falco-sparverius
#1
Noémie M Summa, David Sanchez-Migallon Guzman, Sylvain Larrat, Eric Troncy, David M Bird, Stéphane Lair, Guy Fitzgerald
To evaluate the toxicity of short-term high doses of meloxicam in American kestrels ( Falco sparverius ), 32 male captive-born, 1- to 4-year-old American kestrels were randomly assigned to 4 groups: 3 groups treated with meloxicam (n = 9 per group) and a control group (n = 5). Meloxicam was administered orally via feeding tube in the proventriculus at 2, 10, and 20 mg/kg every 12 hours for 7 days for the treatment groups, while the control group received saline solution. The birds were evaluated for the presence of clinical signs, abnormalities in the complete blood cell count and in the plasma biochemical panel for the 20-mg/kg group, and gross and histopathologic lesions...
June 2017: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/28644080/determination-of-gastrointestinal-transit-times-in-barred-owls-strix-varia-by-contrast-fluoroscopy
#2
Grayson A Doss, Jackie M Williams, Christoph Mans
Contrast imaging studies are routinely performed in avian patients when an underlying abnormality of the gastrointestinal (GI) tract is suspected. Fluoroscopy offers several advantages over traditional radiography and can be performed in conscious animals with minimal stress and restraint. Although birds of prey are commonly encountered as patients, little is known about GI transit times and contrast imaging studies in these species, especially owls. Owls are commonly encountered in zoological, educational, and wildlife settings...
June 2017: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/28644078/plasma-concentrations-of-itraconazole-voriconazole-and-terbinafine-when-delivered-by-an-impregnated-subcutaneous-implant-in-japanese-quail-coturnix-japonica
#3
Marcy J Souza, Patrick Redig, Sherry K Cox
Aspergillosis is a common fungal infection in both wild and pet birds. Although effective antifungal medications are available, treatment of aspergillosis can require months of medication administration, which entails stressful handling one or more times per day. This study examined the delivery of the antifungal drugs itraconazole, voriconazole, and terbinafine to Japanese quail ( Coturnix japonica ) via an impregnated implant. Implants contained 0.5, 3, 8, or 24 mg of itraconazole, voriconazole, or terbinafine...
June 2017: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/28644076/a-novel-surgical-approach-to-avian-femorotibiotarsal-luxation-repair
#4
Anna E McRee, Thomas N Tully, Javier G Nevarez, Julia Sumner, Anderson Favero da Cunha
A 3-month-old male umbrella cockatoo (Cacatua alba) was presented because of acute non-weight-bearing lameness of the right leg. Marked soft tissue swelling was present around the femorotibiotarsal (stifle) joint, and the radiographic diagnosis was right medial femorotibiotarsal subluxation. Surgical management was elected, and the stifle joint was approached via a lateral parapatellar incision. Joint exploration revealed damage to the lateral meniscus, tendon of origin of the cranial tibial muscle, and cranial cruciate ligament...
June 2017: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/28643257/genome-editing-mediated-by-primordial-germ-cell-in-chicken
#5
Jae Yong Han, Hong Jo Lee
Rapid development of genome editing technology has facilitated the studies on exploring specific gene functions and establishment of model animals. In livestock, the technology has contributed to create high value in industry fields, e.g., enhancing productivity or acquiring the resistance against disease. Meanwhile, genome editing in avian species has been emphasized because of their applicable possibilities in terms of highly productive chickens, disease-controlled avian lines, and development of novel biological models...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28642972/does-contrast-between-eggshell-ground-and-spot-coloration-affect-egg-rejection
#6
Miri Dainson, Mark E Hauber, Analía V López, Tomáš Grim, Daniel Hanley
Obligate avian brood parasitic species impose the costs of incubating foreign eggs and raising young upon their unrelated hosts. The most common host defence is the rejection of parasitic eggs from the nest. Both egg colours and spot patterns influence egg rejection decisions in many host species, yet no studies have explicitly examined the role of variation in spot coloration. We studied the American robin Turdus migratorius, a blue-green unspotted egg-laying host of the brown-headed cowbird Molothrus ater, a brood parasite that lays non-mimetic spotted eggs...
August 2017: Die Naturwissenschaften
https://www.readbyqxmd.com/read/28642611/engineered-newcastle-disease-virus-expressing-the-f-and-g-proteins-of-ampv-c-confers-protection-against-challenges-in-turkeys
#7
Haixia Hu, Jason P Roth, Laszlo Zsak, Qingzhong Yu
Avian metapneumovirus (AMPV) infects the respiratory and reproductive tracts of domestic poultry, resulting in substantial economic losses for producers. Live attenuated vaccines appear to be the most effective in countries where the disease is prevalent. However, reversion to virulence has been demonstrated in several studies. Therefore, the development of a stable and safe next generation vaccine against the AMPV disease is needed. In the present study, we generated a recombinant Newcastle disease virus (NDV) vectoring the fusion (F) protein and glycoprotein (G) genes of AMPV subtype-C (AMPV-C) as a bivalent vaccine candidate using reverse genetics technology...
June 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28642430/avian-egg-shape-form-function-and-evolution
#8
Mary Caswell Stoddard, Ee Hou Yong, Derya Akkaynak, Catherine Sheard, Joseph A Tobias, L Mahadevan
Avian egg shape is generally explained as an adaptation to life history, yet we currently lack a global synthesis of how egg-shape differences arise and evolve. Here, we apply morphometric, mechanistic, and macroevolutionary analyses to the egg shapes of 1400 bird species. We characterize egg-shape diversity in terms of two biologically relevant variables, asymmetry and ellipticity, allowing us to quantify the observed morphologies in a two-dimensional morphospace. We then propose a simple mechanical model that explains the observed egg-shape diversity based on geometric and material properties of the egg membrane...
June 23, 2017: Science
https://www.readbyqxmd.com/read/28641389/acute-tryptophan-depletion-the-first-method-validation-in-an-avian-species-gallus-gallus-domesticus
#9
Patrick Birkl, Joergen B Kjaer, William Szkotnicki, Paul Forsythe, Alexandra Harlander-Matauschek
Acute tryptophan depletion (ATD) is a valuable non-invasive nutritional tool in human and rodent research to study dysfunctions of the serotonergic system and related behavioral disorders. Serotonergic dysfunction is thought to be involved in the pathology of feather pecking behavior of laying hens, one of the most relevant welfare and production issues in modern intensive egg-production systems. ATD temporarily compromises the influx of tryptophan (TRP) across the blood brain barrier which reduces central availability of TRP, the substrate for serotonin (5-HT) synthesis...
June 21, 2017: Poultry Science
https://www.readbyqxmd.com/read/28640898/competition-between-influenza-a-virus-subtypes-through-heterosubtypic-immunity-modulates-re-infection-and-antibody-dynamics-in-the-mallard-duck
#10
Neus Latorre-Margalef, Justin D Brown, Alinde Fojtik, Rebecca L Poulson, Deborah Carter, Monique Franca, David E Stallknecht
Our overall hypothesis is that host population immunity directed at multiple antigens will influence the prevalence, diversity and evolution of influenza A virus (IAV) in avian populations where the vast subtype diversity is maintained. To investigate how initial infection influences the outcome of later infections with homologous or heterologous IAV subtypes and how viruses interact through host immune responses, we carried out experimental infections in mallard ducks (Anas platyrhynchos). Mallards were pre-challenged with an H3N8 low-pathogenic IAV and were divided into six groups...
June 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28638929/-research-progress-of-neuregulin-4-biological-function
#11
Fan Yang, Xiao-Nan Li
Neuregulin 4 (NRG4) is a kind of protein containing epidermal growth factor (EGF)-like domains, mainly expressed and secreted by brown adipocytes. It specifically activates EGF receptor ErbB4 (v-erb-b2 avian erythroblastic leukemia viral oncogene homolog 4) to stimulate cell proliferation, inhibit apoptosis and improve energy metabolism of cells. Increasing evidence has shown that NRG4 plays an important role in epithelial cell-related diseases, cardiovascular diseases, tumors and glycolipid metabolic diseases, and therefore it could be a potential therapeutic target of some diseases...
June 25, 2017: Sheng Li Xue Bao: [Acta Physiologica Sinica]
https://www.readbyqxmd.com/read/28638471/rapid-detection-of-avian-influenza-virus-by-fluorescent-diagnostic-assay-using-an-epitope-derived-peptide
#12
Duong Tuan Bao, Do Thi Hoang Kim, Hyun Park, Bui Thi Cuc, Nguyen Minh Ngoc, Nguyen Thi Phuong Linh, Nguyen Chien Huu, Trinh Thi Thuy Tien, Nguyen Thi Viet Anh, Tung Dao Duy, Chom-Kyu Chong, Seung-Taek Yu, Do-Young Choi, Seon-Ju Yeo
Currently, the point of care testing (POCT) is not fully developed for subtype-specific avian influenza virus detection. In this study, an H5N1 hemaglutinin 1 (HA1) epitope (P0: KPNDAINF) and three modified peptides (P1: KPNTAINF, P2: KPNGAINF, P3: KPNDAINDAINF) were evaluated as POCT elements for rapid detection of avian influenza virus. Based on modeling predictions by Autodock Vina, binding affinity varied depending on alteration of one amino acid in these peptides. The binding energy of P2 indicated its potential for a strong interaction with HA...
2017: Theranostics
https://www.readbyqxmd.com/read/28637688/fus-ddit3-fusion-protein-driven-igf-ir-signaling-is-a-therapeutic-target-in-myxoid-liposarcoma
#13
Marcel Trautmann, Jasmin Menzel, Christian Bertling, Magdalene Cyra, Ilka Isfort, Konrad Steinestel, Sandra Elges, Inga Grünewald, Bianca Altvater, Claudia Rossig, Stefan Fröhling, Susanne Hafner, Thomas Simmet, Pierre Åman, Eva Wardelmann, Sebastian Huss, Wolfgang Hartmann
Purpose: Myxoid liposarcoma is an aggressive disease with particular propensity to develop hematogenic metastases. Over 90% of myxoid liposarcoma are characterized by a reciprocal t(12;16)(q13;p11) translocation. The resulting chimeric FUS-DDIT3 fusion protein plays a crucial role in myxoid liposarcoma pathogenesis; however, its specific impact on oncogenic signaling pathways remains to be substantiated. We here investigate the functional role of FUS‑DDIT3 in IGF-IR/PI3K/Akt signaling driving myxoid liposarcoma pathogenesis...
June 21, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28637471/enhanced-humoural-and-cellular-immune-responses-to-influenza-h7n9-antigen-ha1-2-fused-with-flagellin-in-chickens
#14
Li Song, Dan Xiong, Maozhi Hu, Xilong Kang, Zhiming Pan, Xinan Jiao
BACKGROUND: Sudden increases in the number of human A (H7N9) cases reported during December and January have been observed in previous years. Most reported infection cases are due to prior exposure to live poultry or potentially contaminated environments. Low pathogenicity of influenza A (H7N9) virus in avian species complicates timely discovery of infected birds. Therefore, there is a pressing need to develop safe and effective anti-H7N9 vaccines for poultry to reduce the risk of human infection and prevent the emergence of novel mutated strains...
June 21, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28637225/characteristics-of-escherichia-coli-isolated-from-broiler-chickens-with-colibacillosis-in-commercial-farms-from-a-common-hatchery
#15
H Ozaki, Y Matsuoka, E Nakagawa, T Murase
To investigate the epidemiologic aspects of colibacillosis in broiler chickens, 83 Escherichia coli isolates obtained from the pericarditis and perihepatitis lesions in broiler chickens from 4 commercial farms, 5 isolates recovered from 5 samples of yolk sac contents that were pooled from 25 emaciated chicks, and 4 fecal isolates obtained from a hatchery that supplied chicks to the 4 commercial farms mentioned above were genetically and bacteriologically characterized. Using pulsed-field gel electrophoresis (PFGE), a total of 92 isolates were classified into 33 pulsotypes...
June 20, 2017: Poultry Science
https://www.readbyqxmd.com/read/28636345/levels-of-organochlorine-pesticides-are-associated-with-amyloid-aggregation-in-apex-avian-brains
#16
Kelly A Heys, Richard F Shore, M Gloria Pereira, Francis Luke Martin
Organochlorine (OC) pesticides pose a significant environmental risk to wildlife and humans and have been associated with Alzheimer's disease (AD). This study aims to spectroscopically analyse brains from free-flying birds and link the results to OC exposure and consequent amyloid aggregation. As long-lived apex predators, predatory birds represent a sentinel species similar to humans. Therefore, the results have implications for both species and may also add to our understanding of the role OC pesticides play in the development of AD...
June 21, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28636164/a-nanostructured-microfluidic-immunoassay-platform-for-highly-sensitive-infectious-pathogen-detection
#17
Xu Yu, Yiqiu Xia, Yi Tang, Wen-Long Zhang, Yin-Ting Yeh, Huaguang Lu, Si-Yang Zheng
Rapid and simultaneous detection of multiple potential pathogens by portable devices can facilitate early diagnosis of infectious diseases, and allow for rapid and effective implementation of disease prevention and treatment measures. The development of a ZnO nanorod integrated microdevice as a multiplex immunofluorescence platform for highly sensitive and selective detection of avian influenza virus (AIV) is described. The 3D morphology and unique optical property of the ZnO nanorods boost the detection limit of the H5N2 AIV to as low as 3...
June 2017: Small
https://www.readbyqxmd.com/read/28635635/identifying-bird-remains-using-ancient-dna-barcoding
#18
Love Dalén, Vendela K Lagerholm, Johan A A Nylander, Nick Barton, Zbigniew M Bochenski, Teresa Tomek, David Rudling, Per G P Ericson, Martin Irestedt, John R Stewart
Bird remains that are difficult to identify taxonomically using morphological methods, are common in the palaeontological record. Other types of challenging avian material include artefacts and food items from endangered taxa, as well as remains from aircraft strikes. We here present a DNA-based method that enables taxonomic identification of bird remains, even from material where the DNA is heavily degraded. The method is based on the amplification and sequencing of two short variable parts of the 16S region in the mitochondrial genome...
June 21, 2017: Genes
https://www.readbyqxmd.com/read/28635590/imbalance-between-innate-antiviral-and-pro-inflammatory-immune-responses-may-contribute-to-different-outcomes-involving-low-and-highly-pathogenic-avian-influenza-h5n3-infections-in-chickens
#19
John Pasick, Sandra Diederich, Yohannes Berhane, Carissa Embury-Hyatt, Wanhong Xu
In order to gain further insight into the early virus-host interactions associated with highly pathogenic avian influenza virus infections in chickens, genome-wide expression profiling of chicken lung and brain was carried out at 24 and 72 h post-inoculation (h p.i.). For this purpose two recombinant H5N3 viruses were utilized, each possessing a polybasic HA0 cleavage site but differing in pathogenicity. The original rH5N3 P0 virus, which has a low-pathogenic phenotype, was passaged six times through chickens to give rise to the derivative rH5N3 P6 virus, which is highly pathogenic (Diederich S, Berhane Y, Embury-Hyatt C, Hisanaga T, Handel K et al...
June 21, 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28634620/new-data-on-neodiplostomum-americanum-chandler-and-rausch-1947-digenea-diplostomidae-in-the-great-horned-owl-bubo-virginianus-gmelin-1788-and-the-eastern-screech-owl-megascops-asio-linnaeus-1758-in-mississippi-usa
#20
Ethan T Woodyard, Thomas G Rosser, Matt J Griffin
Neodiplostomum americanum Chandler and Rausch, 1947 has been reported from six species of owls in North America. At present, there are no molecular data for this species and gene sequence data from Neodiplostomum Railliet, 1919 are limited. A freshly deceased specimen of the Great Horned Owl Bubo virginianus Gmelin, 1788 and a freshly deceased specimen of the Eastern Screech Owl Megascops asio Linnaeus, 1758 were collected in Oktibbeha County, Mississippi in 2014 and 2016, respectively. Neodiplostomum americanum were recovered from both hosts...
June 20, 2017: Parasitology Research
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