Announcements, International Meetings, WVPA Matters.

Announcements, International Meetings, WVPA Matters. Avian Pathol. 2013 May 9; Authors: PMID: 23656630 [PubMed - as supplied by publisher]
Source: Avian Pathology - Category: Pathology Tags: Avian Pathol Source Type: research

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Contributors : Ariel Rodriguez-Frandsen ; Laura Martin-Sancho ; Anshu P Gounder ; Sumit K ChandaSeries Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensInfluenza A virus (IAV) is a human respiratory pathogen that causes yearly global epidemics, and sporadic pandemics due to human adaptation of pathogenic strains. Efficient replication of IAV in different species is, in part, dictated by its ability to exploit the genetic environment of the host cell. To investigate IAV tropism in human cells, we evaluated the replication of IAV strains in a diverse subset of epithelial cell lines. HeLa cells ...
Source: GEO: Gene Expression Omnibus - Category: Genetics & Stem Cells Tags: Expression profiling by high throughput sequencing Homo sapiens Source Type: research
Avian coccidiosis is caused by Eimeria, which is an intracellular apicomplexan parasite that invades through the intestinal tract to cause devastating disease. Upon invasion through the intestinal epithelial cells, a strong inflammatory response is induced that results in complete villous destruction, diarrhea, hemorrhage, and in severe cases, death. Since the life cycle of Eimeria parasites is complex and comprises several intra- and extracellular developmental stages, the host immune responses are diverse and complex. Interferon-γ-mediated T helper (Th)1 response was originally considered to be the predominant immu...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
We report experiments confirming the two conditions of the oxygen-supply model in Japanese quail embryos, Coturnix coturnix. Hypoxia (12% O2) greatly reduced the chance of survival at 47.5°C, and hyperoxia greatly improved the chance of survival at 48.5°C. This finding expands the scope of the oxygen-supply model to a terrestrial, endothermic species, suggesting that oxygen supply generally limits the heat tolerance of embryos. PMID: 31744411 [PubMed - in process]
Source: Biology Letters - Category: Biology Authors: Tags: Biol Lett Source Type: research
We examined the pathogenic effects of the viruses in chicken embryos and the size and morphology of the virus particles, performed phylogenetic analysis based on the S1 gene and complete genomic sequences, and examined the antibody responses against infectious bronchitis virus (IBV). The results suggested that the viruses I0623/17 and I0710/17 were avian coronaviruses and were identified as pheasant coronaviruses (PhCoV), with greatest similarity to IBV. Further investigations of the antigenicity, complete genome organization, substitutions in multiple genes, and viral pathogenicity, replication, and shedding in chickens a...
Source: Veterinary Microbiology - Category: Veterinary Research Source Type: research
Treatment of avian renal disease relies on supportive care, such as fluid therapy and nutritional support. Analgesia and adaptations of the environment are indicated in cases of renal disease associated with painful joints. Other treatments vary with the underlying etiology and may include systemic antibiotics, antifungal therapy, vitamin A supplementation, or chelation therapy.
Source: Veterinary Clinics of North America: Exotic Animal Practice - Category: Veterinary Research Authors: Source Type: research
Due to the special anatomy and physiology of the avian urinary system, the value of diagnostic imaging techniques differs from the use in mammals. The diagnostic imaging methods regularly used in practice to evaluate the avian kidneys are often limited to traditional radiography and ultrasonography, whereas other imaging modalities (urography, scintigraphy, computed tomography, MRI) are rarely used. Furthermore endoscopy may be performed and taking a renal biopsy may be considered. The article describes common indications for imaging techniques used to diagnose urinary tract disease as well as its anatomic and pathologic demonstration.
Source: Veterinary Clinics of North America: Exotic Animal Practice - Category: Veterinary Research Authors: Source Type: research
This article aims to provide the reader not only a list of the diseases that occur in birds but also the guidelines on when a disease should be considered in a differential.
Source: Veterinary Clinics of North America: Exotic Animal Practice - Category: Veterinary Research Authors: Source Type: research
The avian kidney contains both cortical or reptilian and medullary or mammalian nephrons. The kidney filters up to 11 times the total body water daily. Approximately 95% of this volume is reabsorbed by tubular reabsorption, which likely results from a change in the rate of filtration and/or the rate of reabsorption. These changes can result because of the antidiuretic hormone arginine vasotocin. The urinary concentrating ability generally varies inversely with body mass; however, birds can concentrate their urine, often at 2 to 3 times the osmolality of plasma. Further concentration of urine may occur by retroperistalsis.
Source: Veterinary Clinics of North America: Exotic Animal Practice - Category: Veterinary Research Authors: Source Type: research
Avian malaria parasites are a highly diverse group that commonly infect birds and have deleterious effects on their hosts. Some parasite lineages are geographically widespread and infect many host species in m...
Source: Parasites and Vectors - Category: Microbiology Authors: Tags: Research Source Type: research
Avian hepatitis E virus (aHEV) has been associated with hepatitis-splenomegaly syndrome (HSS) in chickens along with asymptomatic subclinical infection in many cases. So far, four genotypes have been described...
Source: Virology Journal - Category: Virology Authors: Tags: Research Source Type: research
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