1,816 results match your criteria: "School of Veterinary Medicine and Science[Affiliation]"

Comparison of multiple international metrics for benchmarking antibiotic usage (ABU) using UK beef and sheep data.

J Antimicrob Chemother

October 2023

Royal (Dick) School of Veterinary Studies and The Roslin Institute, University of Edinburgh, Easter Bush Campus, Midlothian, UK.

Background: Accurate surveillance of livestock antibiotic usage (ABU) at the farm level is an increasingly important part of national antibiotic stewardship initiatives. Numerous ABU indicators or metrics have been developed in Europe and North America but the comparability of these metrics is poorly understood. For policymakers, understanding the relationship between metrics is important when considering the risks posed by ABU and how to regulate them, at the national level, and regulate international trade access in livestock products between countries who use different ABU metrics.

View Article and Find Full Text PDF

A reduced potential for lameness bacterial transmission by Lucilia sericata larvae and flies through metamorphosis.

Res Vet Sci

October 2023

School of Life Sciences, University of Lincoln, Brayford Pool, Lincoln LN6 8DB, UK; Department of Infection Biology and Microbiomes, Institute of Infection, Veterinary & Ecological Sciences, University of Liverpool, Neston CH64 7TE, UK. Electronic address:

Article Synopsis
  • * This study investigated whether larvae of Lucilia sericata found on lame sheep could carry lameness-related bacteria, focusing on three key bacterial types linked to the condition.
  • * Findings revealed a notable link between lameness bacteria present in the larvae and those on sheep foot lesions, but no bacteria were found in the adult flies, indicating changes during their transformation.
View Article and Find Full Text PDF

Alternative Splicing Events and Their Clinical Significance in Colorectal Cancer: Targeted Therapeutic Opportunities.

Cancers (Basel)

August 2023

SAMRC Precision Oncology Research Unit (PORU), DSI/NRF SARChI Chair in Precision Oncology and Cancer Prevention (POCP), Pan African Cancer Research Institute (PACRI), University of Pretoria, Pretoria 0028, South Africa.

Colorectal cancer (CRC) ranks as one of the top causes of cancer mortality worldwide and its incidence is on the rise, particularly in low-middle-income countries (LMICs). There are several factors that contribute to the development and progression of CRC. Alternative splicing (AS) was found to be one of the molecular mechanisms underlying the development and progression of CRC.

View Article and Find Full Text PDF
Article Synopsis
  • China leads in antimicrobial consumption, making improved surveillance crucial to tackle antimicrobial resistance (AMR).
  • A study on chicken farms and abattoirs identified 145 potentially mobile antibiotic resistance genes (ARGs) shared among chickens and their environments, emphasizing the link between gut microbes and AMR in Escherichia coli.
  • Findings suggest environmental factors like temperature and humidity influence ARG presence, highlighting the complex interplay between livestock environments, microbial communities, and AMR that could inform better surveillance strategies.
View Article and Find Full Text PDF

Universal DNA methylation age across mammalian tissues.

Nat Aging

September 2023

Department of Human Genetics, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA.

Aging, often considered a result of random cellular damage, can be accurately estimated using DNA methylation profiles, the foundation of pan-tissue epigenetic clocks. Here, we demonstrate the development of universal pan-mammalian clocks, using 11,754 methylation arrays from our Mammalian Methylation Consortium, which encompass 59 tissue types across 185 mammalian species. These predictive models estimate mammalian tissue age with high accuracy (r > 0.

View Article and Find Full Text PDF

DNA methylation networks underlying mammalian traits.

Science

August 2023

Department of Human Genetics, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA.

Using DNA methylation profiles ( = 15,456) from 348 mammalian species, we constructed phyloepigenetic trees that bear marked similarities to traditional phylogenetic ones. Using unsupervised clustering across all samples, we identified 55 distinct cytosine modules, of which 30 are related to traits such as maximum life span, adult weight, age, sex, and human mortality risk. Maximum life span is associated with methylation levels in subclass homeobox genes and developmental processes and is potentially regulated by pluripotency transcription factors.

View Article and Find Full Text PDF

Comparison of two sedation protocols for long electroretinography in horses using the Koijman electrode.

BMC Vet Res

August 2023

Departamento de Medicina y Cirugía Animal, Facultad de Veterinaria, Universidad Cardenal Herrera-CEU, CEU Universities, Tirant lo Blanc, 7, Alfara del Patriarca, Valencia, 46115, Spain.

Background: In modern times, horses are utilized not only for labour and transportation purposes but also for recreational activities such as competition and pleasure riding. In these various pursuits, the role of vision plays a crucial role. Electroretinography is the most used test to diagnose diseases of the retinal outer segment.

View Article and Find Full Text PDF

Veterinarians (vets) appear to be one of the main gateways to biosecurity information for cattle farmers, and therefore are likely to affect the implementation of these measures. The aim of this study was to explore factors within the vet-farmer relationship that may impact on biosecurity being carried out on cattle farms in England. Interviews were conducted with cattle farmers and large-animal vets, with a focus on individuals deemed to implement good levels of biosecurity or those working with said individuals.

View Article and Find Full Text PDF

Lameness in dairy cattle is a highly prevalent condition that impacts on the health and welfare of dairy cows. Prompt detection and implementation of effective treatment is important for managing lameness. However, major limitations are associated with visual assessment of lameness, which is the most commonly used method to detect lameness.

View Article and Find Full Text PDF

Background: Injectable non-steroidal anti-inflammatory drugs (NSAIDs) are commonly prescribed to queens undergoing ovariohysterectomy (OVH), but the requirement for postoperative administration is unclear and practices vary. Existing studies assessing efficacy rely on pain scoring by experienced clinicians. However, following OVH, most cats are discharged within hours of recovery.

View Article and Find Full Text PDF
Article Synopsis
  • High-resolution respirometry enables the measurement of oxygen consumption in cells, tissues, and isolated mitochondria.
  • The integrity of mitochondria is typically affected by cryopreservation, restricting assessments to fresh samples.
  • This study introduces a straightforward method to evaluate mitochondrial respiratory complexes I and II in cryopreserved murine skeletal muscle and frozen D. melanogaster based on oxygen consumption.
View Article and Find Full Text PDF

Background & Aims: Non-alcoholic fatty liver disease (NAFLD) is a complex trait with an estimated prevalence of 25% globally. We aimed to identify the genetic variant underlying a four-generation family with progressive NAFLD leading to cirrhosis, decompensation, and development of hepatocellular carcinoma in the absence of common risk factors such as obesity and type 2 diabetes.

Methods: Exome sequencing and genome comparisons were used to identify the likely causal variant.

View Article and Find Full Text PDF

Associations between Johne's disease and fertility in UK dairy herds.

Vet J

November 2023

School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington LE12 5RD, UK.

The objective of this observational study was to quantify associations between Mycobacterium avium subspecies paratuberculosis (MAP) antibody status and a variety of fertility outcomes, in UK dairy cattle. Longitudinal milk recording, fertility and MAP antibody enzyme-linked immunosorbent assay (ELISA) milk test data were collated retrospectively from 121,762 lactations in 78 herds. Datasets were structured into appropriate units to suit outcomes and enable temporal association between current and future MAP status, and fertility measures.

View Article and Find Full Text PDF

Objective: Spondyloarthritis (SpA) is a group of immune-mediated diseases highly concomitant with nonmusculoskeletal inflammatory disorders, such as acute anterior uveitis (AAU) and Crohn's disease (CD). The gut microbiome represents a promising avenue to elucidate shared and distinct underlying pathophysiology.

Methods: We performed 16S ribosomal RNA sequencing on stool samples of 277 patients (72 CD, 103 AAU, and 102 SpA) included in the German Spondyloarthritis Inception Cohort and 62 back pain controls without any inflammatory disorder.

View Article and Find Full Text PDF

Objectives: To establish packed cell volume (PCV) ranges for non-pregnant, pregnant and post-partum bitches from day 10 of proestrus, investigating any relationship with parity and litter size.

Methods: This prospective cohort study used 37 healthy breeding bitches to examine PCV counts from routine blood samples collected every 4 weeks, from day 10 of proestrus, as part of routine PCV monitoring.

Results: For pregnant (n = 19) and non-pregnant (n = 18) bitches, PCV decreased until week 8 (corresponding to 8.

View Article and Find Full Text PDF

Background: The Basset Hound is the largest chondrodystrophic breed predisposed to thoracolumbar intervertebral disc extrusion (TL-IVDE). However, literature describing this particular breed in terms of incidence, signalment, anatomical location, clinical severity and short-term outcome of TL-IVDE is lacking.

Methods: The medical histories of Dachshunds and Basset Hounds presenting to three neurology departments were retrospectively assessed.

View Article and Find Full Text PDF

Trichiurus lepturus is a carnivorous fish, and most of the previous anatomical research has focused on computed tomography imaging and histology of their teeth and fangs, while the remaining structures of pharyngeal cavity remain unexplored. The present research is the first to use anatomical examinations alongside scanning electron microscopy to investigate the T. lepturus oral cavity.

View Article and Find Full Text PDF

Uncovering the Underlying Mechanisms Blocking Replication of Bluetongue Virus Serotype 26 (BTV-26) in Cells.

Biomolecules

May 2023

UMR1161 VIROLOGIE, INRAE, Ecole Nationale Vétérinaire d'Alfort, ANSES, Université Paris-Est, F-94700 Maisons-Alfort, France.

At least 12 serotypes of 'atypical' bluetongue virus (BTV-25 to BTV-36) have been identified to date. These atypical serotypes fail to infect/replicate in -derived cell lines and/or adult vectors and hence can no longer be transmitted by these vectors. They appear to be horizontally transmitted from infected to in-contact ruminants, although the route(s) of infection remain to be identified.

View Article and Find Full Text PDF

Bovine herpesvirus 1 (BHV-1) is an important pathogen of cattle with a worldwide distribution. It occurs as a subclinical, mild or severe disease. The clinical signs may vary widely with respiratory, genital, ocular and encephalomyelitis form.

View Article and Find Full Text PDF

Telocytes (TCs) are present in a broad range of species and regulate processes including homeostasis, tissue regeneration and immunosurveillance. This novel study describes the morphological features of migrating TCs and their role during cartilage development within the air-breathing organ in Clarias gariepinus, the African sharptooth catfish. Light microscopy (LM), transmission electron microscopy (TEM), and immunohistochemistry (IHC) were used to examine the TCs.

View Article and Find Full Text PDF

Horseshoe bats are the natural hosts of the subgenus that includes SARS-CoV and SARS-CoV- 2. Despite the devastating impact of the COVID-19 pandemic, there is still little known about the underlying epidemiology and virology of sarbecoviruses in their natural hosts, leaving large gaps in our pandemic preparedness. Here we describe the results of PCR testing for sarbecoviruses in the two horseshoe bat species ( and ) present in Great Britain, collected in 2021-22 during the peak of COVID-19 pandemic.

View Article and Find Full Text PDF

is highly polymorphic, and some strains are much more likely to cause disease than others. Biofilm formation can help bacteria to survive antibiotic treatment, immune attack and other stresses, promoting persistent infection. We hypothesized that isolates from patients with more severe associated disease would be better at forming biofilms than isolates from patients with less severe disease.

View Article and Find Full Text PDF