An immunohistochemical study was performed to evaluate the stress-related proteins heat shock protein 25 (HSP25) and metallothionein 1+2 (MT1+2) in the brains of a murine model of bovine spongiform encephalopathy (BSE). Transgenic mice (BoTg110) expressing the bovine cellular prion protein were intracerebrally inoculated with brainstem homogenate from BSE infected cattle. PrP(BSE) deposits were found in the brain as early as 150 days post-inoculation (dpi) and in mice sacrificed terminally at 290-320dpi. Glial proliferation and spongiform change were associated with an increase in glial immunostaining of MT1+2 and HSP25, respectively. These proteins are associated with oxidative stress and heavy metal metabolism, which may have a role in the pathogenesis of BSE.
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http://dx.doi.org/10.1016/j.tvjl.2007.06.002 | DOI Listing |
Although the highlands of East Africa lack the geo-ecological landmarks of Rift Valley fever (RVF) disease hotspots to participate in cyclic RVF epidemics, they have recently reported growing numbers of small RVF clusters. Here, we investigated whether RVF cycling occurred among livestock and humans in the central highlands of Kenya during inter-epidemic periods. A 2-year prospective hospital-based study among febrile patients (March 2022-February 2024) in Murang'a County of Kenya was followed by a cross-sectional human-animal survey.
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December 2024
Institute of Virology and Immunology, Länggass-Str. 122, CH-3001 Bern, Switzerland.
Bovine viral diarrhea virus (BVDV), a pestivirus in the family , is a major livestock pathogen. Horizontal transmission leads to acute transient infections via the oronasal route, whereas vertical transmission might lead to the birth of immunotolerant, persistently infected animals. In both cases, BVDV exerts an immunosuppressive effect, predisposing infected animals to secondary infections.
View Article and Find Full Text PDFSensors (Basel)
December 2024
Orobix Life, 24121 Bergamo, Italy.
We present an artificial intelligence (AI)-enhanced monitoring framework designed to assist personnel in evaluating and maintaining animal welfare using a modular architecture. This framework integrates multiple deep learning models to automatically compute metrics relevant to assessing animal well-being. Using deep learning for AI-based vision adapted from industrial applications and human behavioral analysis, the framework includes modules for markerless animal identification and health status assessment (e.
View Article and Find Full Text PDFMicroorganisms
December 2024
Laboratory of Emerging Infectious Diseases, School of Medicine, Pontifícia Universidade Católica do Paraná, Curitiba 80215-901, PR, Brazil.
Silver nanoparticles have garnered significant attention for their antimicrobial applications. The aim of this study was to develop and characterize a silver nanoparticle-enhanced bone graft and assess its antimicrobial and antibiofilm activities. Bone granules from bovine cancellous femur were impregnated with silver nanoparticles (50 nm).
View Article and Find Full Text PDFPharmaceuticals (Basel)
December 2024
Department of Radiology, Sixth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China.
Albumin-bound paclitaxel (nab-PTX) nanoparticles have been proven effective in treating advanced pancreatic cancer. However, the clinical application of nab-PTX nanoparticles is often associated with suboptimal outcomes and severe side effects due to its non-specific distribution and rapid clearance. This study aims to develop a novel nanoplatform that integrates sonodynamic therapy (SDT) and chemotherapy to enhance treatment efficacy and reduce systemic side effects.
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