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Veterinary Pathology and Pathobiology Commons™
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Articles 31 - 38 of 38
Full-Text Articles in Veterinary Pathology and Pathobiology
More People, More Cats, More Parasites: Human Population Density And Temperature Variation Predict Prevalence Of Toxoplasma Gondii Oocyst Shedding In Free-Ranging Domestic And Wild Felids, Sophie Zhu, Elizabeth Vanwormer, Karen Shapiro
More People, More Cats, More Parasites: Human Population Density And Temperature Variation Predict Prevalence Of Toxoplasma Gondii Oocyst Shedding In Free-Ranging Domestic And Wild Felids, Sophie Zhu, Elizabeth Vanwormer, Karen Shapiro
School of Veterinary and Biomedical Sciences: Faculty Publications
Toxoplasma gondii is a ubiquitous zoonotic parasite that can infect warm-blooded vertebrates, including humans. Felids, the definitive hosts, drive T. gondii infections by shedding the environmentally resistant stage of the parasite (oocysts) in their feces. Few studies characterize the role of climate and anthropogenic factors in oocyst shedding among free-ranging felids, which are responsible for the majority of environmental contamination. We determined how climate and anthropogenic factors influence oocyst shedding in free-ranging domestic cats and wild felids using generalized linear mixed models. T. gondii oocyst shedding data from 47 studies were systematically reviewed and compiled for domestic cats and six …
Chemical Characterization And Biological Evaluation Of Epilobium Parviflorum Extracts In An In Vitro Model Of Human Malignant Melanoma, Sotiris Kyriakou, Venetia Tragkola, Ioannis Paraskevaidis, Mihalis Plioukas, Dimitrios T. Trafalis, Rodrigo Franco, Aglaia Pappa, Mihalis I. Panayiotidi
Chemical Characterization And Biological Evaluation Of Epilobium Parviflorum Extracts In An In Vitro Model Of Human Malignant Melanoma, Sotiris Kyriakou, Venetia Tragkola, Ioannis Paraskevaidis, Mihalis Plioukas, Dimitrios T. Trafalis, Rodrigo Franco, Aglaia Pappa, Mihalis I. Panayiotidi
School of Veterinary and Biomedical Sciences: Faculty Publications
Malignant melanoma is an aggressive type of skin cancer characterised by high metastatic capacity and mortality rate. On the other hand, Epilobium parviflorum is known for its medicinal properties, including its anticancer potency. In this context, we aimed to (i) isolate various extracts of E. parviflorum, (ii) characterize their phytochemical content, and (iii) determine their cytotoxic potential in an in vitro model of human malignant melanoma. To these ends, we utilized various spectrophotometric and chromatographic (UPLC-MS/MS) approaches to document the higher content of the methanolic extract in polyphenols, soluble sugars, proteins, condensed tannins, and chlorophylls -a and -b as …
Does Swab Type Matter? Comparing Methods For Mannheimia Haemolytica Recovery And Upper Respiratory Microbiome Characterization In Feedlot Cattle, William B. Crosby, Lee Pinnell, John T. Richeson, Cory Wolfe, Jake Castle, John Dustin Loy, Sheryl P. Gow, Keun Seok Seo, Sarah F. Capik, Amelia R. Woolums, Paul S. Morley
Does Swab Type Matter? Comparing Methods For Mannheimia Haemolytica Recovery And Upper Respiratory Microbiome Characterization In Feedlot Cattle, William B. Crosby, Lee Pinnell, John T. Richeson, Cory Wolfe, Jake Castle, John Dustin Loy, Sheryl P. Gow, Keun Seok Seo, Sarah F. Capik, Amelia R. Woolums, Paul S. Morley
School of Veterinary and Biomedical Sciences: Faculty Publications
Background: Bovine respiratory disease (BRD) is caused by interactions among host, environment, and pathogens. One standard method for antemortem pathogen identification in cattle with BRD is deep-guarded nasopharyngeal swabbing, which is challenging, costly, and waste generating. The objective was to compare the ability to recover Mannheimia haemolytica and compare microbial community structure using 29.5 inch (74.9 cm) deep-guarded nasopharyngeal swabs, 16 inch (40.6 cm) unguarded proctology swabs, or 6 inch (15.2 cm) unguarded nasal swabs when characterized using culture, real time-qPCR, and 16S rRNA gene sequencing. Samples for aerobic culture, qPCR, and 16S rRNA gene sequencing were collected from the …
Detection Of Mannheimia Haemolytica-Specific Igg, Igm And Iga In Sera And Their Relationship To Respiratory Disease In Cattle, Korakrit Poonsuk, Carita Kordik, Matthew M. Hille, Ting-Yu Cheng, William B. Crosby, Amelia R. Woolums, Michael L. Clawson, Carol G. Chitko-Mckown, Bruce Brodersen, John Dustin Loy
Detection Of Mannheimia Haemolytica-Specific Igg, Igm And Iga In Sera And Their Relationship To Respiratory Disease In Cattle, Korakrit Poonsuk, Carita Kordik, Matthew M. Hille, Ting-Yu Cheng, William B. Crosby, Amelia R. Woolums, Michael L. Clawson, Carol G. Chitko-Mckown, Bruce Brodersen, John Dustin Loy
School of Veterinary and Biomedical Sciences: Faculty Publications
Mannheimia haemolytica is one of the major causes of bovine respiratory disease in cattle. The organism is the primary bacterium isolated from calves and young cattle affected with enzootic pneumonia. Novel indirect ELISAs were developed and evaluated to enable quantification of antibody responses to whole cell antigens using M. haemolytica A1 strain P1148. In this study, the ELISAs were initially developed using sera from both M. haemolytica-culture-free and clinically infected cattle, then the final prototypes were tested in the validation phase using a larger set of known-status M. haemolytica sera (n = 145) collected from feedlot cattle. The test …
First Gene-Edited Calf With Reduced Susceptibility To A Major Viral Pathogen, Aspen M. Workman, Michael P. Heaton, Brian L. Vander Ley, Dennis A. Webster, Luke Sherry, Jonathan R. Bostrom, Sabrina Larson, Theodore S. Kalbfleisch, Gregory P. Harhay, Erin E. Jobman, Daniel F. Carlson, Tad S. Sonstegard
First Gene-Edited Calf With Reduced Susceptibility To A Major Viral Pathogen, Aspen M. Workman, Michael P. Heaton, Brian L. Vander Ley, Dennis A. Webster, Luke Sherry, Jonathan R. Bostrom, Sabrina Larson, Theodore S. Kalbfleisch, Gregory P. Harhay, Erin E. Jobman, Daniel F. Carlson, Tad S. Sonstegard
School of Veterinary and Biomedical Sciences: Faculty Publications
Bovine viral diarrhea virus (BVDV) is one of the most important viruses affecting the health and well-being of bovine species throughout the world. Here, we used CRISPR-mediated homology-directed repair and somatic cell nuclear transfer to produce a live calf with a six amino acid substitution in the BVDV binding domain of bovine CD46. The result was a gene-edited calf with dramatically reduced susceptibility to infection as measured by reduced clinical signs and the lack of viral infection in white blood cells. The edited calf has no off-target edits and appears normal and healthy at 20 months of age without obvious …
Aerobic Exercise And Scaffolds With Hierarchical Porosity Synergistically Promote Functional Recovery Post Volumetric Muscle Loss, Christina Zhu, Karina Skylar, Yori Endo, Mohamadmahdi Samandari,, Mehran Karvar, Azadeh Mostafavi, Jacob Quint, Chiara Rioldi, Wojciech Swieszkowski, Joshua Mauney, Shailesh Agarwal, Ali Tamayol, Indranil Sinha
Aerobic Exercise And Scaffolds With Hierarchical Porosity Synergistically Promote Functional Recovery Post Volumetric Muscle Loss, Christina Zhu, Karina Skylar, Yori Endo, Mohamadmahdi Samandari,, Mehran Karvar, Azadeh Mostafavi, Jacob Quint, Chiara Rioldi, Wojciech Swieszkowski, Joshua Mauney, Shailesh Agarwal, Ali Tamayol, Indranil Sinha
School of Veterinary and Biomedical Sciences: Faculty Publications
Volumetric muscle loss (VML) is a composite loss of skeletal muscle tissue (greater than 20%) that heals with minimal muscle regeneration, substantial fibrosis, and subsequent functional deficits. Standard treatment, involving free functional muscle transfer and physical therapy, cannot restore full muscle function following VML. Tissue engineered scaffolds, 3D structural templates that mimic native extracellular matrix, are promising to enhance functional muscle formation and recovery. Bioprinted 3D scaffolds are engineered using bioinks, created from scaffolding material, cells, and growth factors, to replicate skeletal muscle architecture with precise control over their spatial deposition. METHODS: The present study evaluates a 3D-printed foam-like scaffold …
Host-Genetic-Based Outcome Of Co-Infection By Pcv2b And Prrsv In Pigs, Christian W. Eaton, Hiep Vu, Arabella L. Hodges, Seth P. Harris, Stephen D. Kachman, Daniel C. Ciobanu
Host-Genetic-Based Outcome Of Co-Infection By Pcv2b And Prrsv In Pigs, Christian W. Eaton, Hiep Vu, Arabella L. Hodges, Seth P. Harris, Stephen D. Kachman, Daniel C. Ciobanu
School of Veterinary and Biomedical Sciences: Faculty Publications
Replication of porcine circovirus type 2 (PCV2), an important worldwide swine pathogen, has been demonstrated to be influenced by host genotype. Specifically, a missense DNA polymorphism (SYNGR2 p.Arg63Cys) within the SYNGR2 gene was demonstrated to contribute to variation in PCV2b viral load and subsequent immune response following infection. PCV2 is known to induce immunosuppression leading to an increase in susceptibility to subsequent infections with other viral pathogens such as porcine reproductive and respiratory syndrome virus (PRRSV). In order to assess the role of SYNGR2 p.Arg63Cys in co-infections, pigs homozygous for the favorable SYNGR2 p.63Cys (N = 30) …
Infection Of Feral Phenotype Swine With Japanese Encephalitis Virus, So Lee Park, Yan-Jang S. Huang, Amy C. Lyons, Victoria B. Ayers, Susan M. Hettenbach, D. Scott Mcvey, Leela E. Noronha, Kenneth R. Burton, Stephen Higgs, Dana L. Vanlandingham
Infection Of Feral Phenotype Swine With Japanese Encephalitis Virus, So Lee Park, Yan-Jang S. Huang, Amy C. Lyons, Victoria B. Ayers, Susan M. Hettenbach, D. Scott Mcvey, Leela E. Noronha, Kenneth R. Burton, Stephen Higgs, Dana L. Vanlandingham
School of Veterinary and Biomedical Sciences: Faculty Publications
Background: Japanese encephalitis virus (JEV) is a mosquito-borne zoonotic flavivirus and the leading cause of pediatric encephalitis in the Asian Pacific region. The transmission cycle primarily involves Culex spp. mosquitoes and Ardeid birds, with domestic pigs (Sus scrofa domestica) being the source of infectious viruses for the spillover of JEV from the natural endemic transmission cycle into the human population. Although many studies have concluded that domestic pigs play an important role in the transmission cycle of JEV, and infection of humans, the role of feral pigs in the transmission of JEV remains unclear. Since domestic and …