Recurring incursions and dissemination of novel Eurasian-origin H5Nx avian influenza viruses in Atlantic Canada.

Wild birds are important hosts of influenza A viruses (IAVs) and play an important role in their ecology. The emergence of the A/goose/Guangdong/1/1996 H5N1 (Gs/GD) lineage marked a shift in IAV ecology, leading to recurrent outbreaks and mortality in wild birds from 2002 onwards. This lineage has evolved and diversified over time, with a recent important derivative being the 2.

EVALUATION OF ETORPHINE-MEDETOMIDINE-MIDAZOLAMAZAPERONE FOR IMMOBILIZATION IN CAPTIVE PRONGHORN ().

Etorphine based immobilization protocols are reported to be effective in pronghorn; however, information on cardiorespiratory effects is limited. The objective of this study was to evaluate the efficacy and cardiopulmonary effects of etorphine, medetomidine, midazolam, and azaperone for immobilization in captive pronghorn. Additionally, the effects of endotracheal intubation and manual ventilation on cardiopulmonary variables were assessed.

Rabbit Gastroenterology.

Gastrointestinal (GI) disorders are a common cause of emergency presentation in rabbits. Gastrointestinal stasis is a syndrome that is frequently caused by various primary conditions (including but not limited to affections of the GI tract itself). Over the last years, clinical features, diagnosis, management, and prognosis of GI disorders-such as GI obstructions, appendicitis, rabbit hemorrhagic virus disease, or liver lobe torsion-have been studied.

Temporal kinetics of serum amyloid A (SAA) concentration and identification of SAA isoforms in blood and synovial fluid of horses with experimentally induced septic arthritis, non-septic synovitis, and systemic inflammation.

Prompt diagnosis of equine septic arthritis is crucial for successful treatment. Serum amyloid A (SAA) has been suggested as a reliable biomarker. However, we previously found that synovial fluid SAA increases in nonaffected joints of horses with septic arthritis.

Feline Diabetes Is Associated with Deficits in Markers of Insulin Signaling in Peripheral Tissues.

Like humans, cats have a strong relationship between decreasing insulin sensitivity and the development of diabetes with obesity. However, the underlying molecular mechanisms of impaired insulin secretion and signaling in cats remain largely unknown. A total of 54 client-owned nondiabetic lean ( = 15), overweight ( = 15), and diabetic ( = 24) cats were included in the study.

Curriculum Hours and Approaches to Instruction in Veterinary Ophthalmology: A Global Survey of Veterinary Schools.

Reports regarding curricula in ophthalmology across veterinary schools are not currently available. The objective of this study was therefore to investigate the number of contact hours and approaches to teaching ophthalmology in the curriculum of English-speaking veterinary schools worldwide. An online survey was distributed to 51 veterinary colleges in North America, the United Kingdom, Australia, New Zealand, and the Caribbean.

Preclinical safety and effectiveness of a long-acting somatostatin analogue [Ac]Ac-EBTATE against small cell lung cancer and pancreatic neuroendocrine tumors.

Purpose: We report the preclinical evaluation of potent long-acting [Ac]Ac-EBTATE against SSTR2-positive small cell lung cancer (SCLC) and pancreatic neuroendocrine tumors (pan-NETs).

Methods: The pharmacokinetic, biodistribution, and safety studies were evaluated in healthy female and/or male BALB/c mice after intravenous injections of [Ac]Ac-EBTATE. Further biodistribution and radioligand therapy were investigated in female athymic BALB/c nude mice bearing high or low SSTR2-expressing subcutaneous SCLC models NCI-H524 or NCI-H727, respectively, and in a pan-NET model QGP1.

A call for a coherent One Health strategy for the surveillance of climate-sensitive infectious diseases in the Canadian Arctic and subarctic regions.

Introduction: The increased burden of climate-sensitive infectious diseases (CSIDs) within the circumpolar region, one of the many impacts of climate change, is impacting human, animal and ecosystem health. An integrated One Health approach to surveillance of CSIDs has been promoted by the scientific community as a prerequisite to enhance preparedness and response. Up to now, little is known about how the One Health approach has been implemented in surveillance systems for CSIDs in the Arctic and surrounding regions.

Ontogeny shapes individual dietary specialization in female European brown bears (Ursus arctos).

Individual dietary specialization, where individuals occupy a subset of a population's wider dietary niche, is a key factor determining a species resilience against environmental change. However, the ontogeny of individual specialization, as well as associated underlying social learning, genetic, and environmental drivers, remain poorly understood. Using a multigenerational dataset of female European brown bears (Ursus arctos) followed since birth, we discerned the relative contributions of environmental similarity, genetic heritability, maternal effects, and offspring social learning from the mother to individual specialization.

Predicting Admission and Future Performance of Veterinary School Applicants: Evaluation of Scores of Self-Reported Animal Experience and Rural Versus Urban Background.

Admission to veterinary school is generally based on academic and nonacademic measures. Descriptions of animal or veterinary experience and rural versus urban background are often sought from applicants, but little is objectively known about their impact on admission success or future performance. We evaluated scores from written descriptions from 590 veterinary school applicants for the nature and extent of self-reported animal experience.

Upregulation of porcine epidemic diarrhea virus (PEDV) RNA translation by the nucleocapsid protein.

The role of coronaviral nucleocapsid (N) protein in regulating viral translation remains poorly understood. Here, we showed that the N protein of porcine epidemic diarrhea virus (PEDV) enhances the translation of both virus-like genomic RNA (gRNA) and messenger RNA. Further characterization of the gRNA translation upregulation showed that the N-terminal domain (NTD) + Linker region plays a major role.

Spirulina platensis Peptide-Loaded Nanoliposomes Alleviate Hepatic Lipid Accumulation in Male Wistar Rats by Influencing Redox Homeostasis and Lipid Metabolism via the AMPK Signaling Pathway.

Spirulina platensis low-molecular-weight peptides (SP) have been reported to exhibit antioxidant and hepatoprotective properties. However, the limited bioavailability and solubility of SPs limit their potential applications. In this study, to examine the potential anti-obesity effects and underlying mechanisms of SPs, high-fat diet-induced non-alcoholic fatty liver disease (NAFLD) model rats were treated with SPs and SP-loaded nanoliposomes.

How Does African Swine Fever Virus Evade the cGAS-STING Pathway?

African swine fever (ASF), a highly infectious and devastating disease affecting both domestic pigs and wild boars, is caused by the African swine fever virus (ASFV). ASF has resulted in rapid global spread of the disease, leading to significant economic losses within the swine industry. A significant obstacle to the creation of safe and effective ASF vaccines is the existing knowledge gap regarding the pathogenesis of ASFV and its mechanisms of immune evasion.

Evaluating the Influence of Different Artificial Diets on L. Using Health Biomarkers and Performance Metrics.

The diet of L. is a crucial factor for managing its colonies particularly during dearth periods. Numerous diets have been developed; however, their global implementation faces challenges due to diverse climatic conditions and some other factors.

Avian influenza virus circulation and immunity in a wild urban duck population prior to and during a highly pathogenic H5N1 outbreak.

Highly pathogenic avian influenza (HPAI) H5N1 clade 2.3.4.

Analysis of cannabinoids in plasma from 38 cases of suspected cannabinoid intoxication in dogs.

Objective: To quantify and characterize plasma cannabinoid concentrations in cases of suspected cannabis toxicity in dogs, identify potential correlations between clinical signs and plasma concentrations, and assess the specificity of cannabis toxicity diagnosis based on clinical signs alone.

Design: Observational study.

Setting: Veterinary teaching hospital.

Stress induces nucleobindin-1 mRNA and nesfatin-1-like peptide stimulates cortisol secretion in goldfish.

Stress is a state of disrupted homeostasis triggered by physical or psychological stimuli that elicit adaptive responses at the molecular and cellular levels. In fish, the hypothalamus-pituitary-interrenal (HPI) axis mediates stress responses. Nesfatin-1 and a nesfatin-1-like peptide (NLP), derived from nucleobindin-1 (NUCB1), have been implicated in stress hormone regulation in mammals.

Evaluation and Comparison of Tolerance of Ambiguity in Veterinary Pathology Professionals and Trainees.

Ambiguity is ubiquitous in veterinary medicine, including in clinical and anatomic pathology. Tolerance of ambiguity (TOA) relates to how individuals navigate uncertainty. It is associated with psychological well-being in health professionals yet has been little investigated in veterinarians or veterinary pathologists.

Exploring the Experiences of Visiting Veterinary Service Providers in Indigenous Communities in Canada: Proposing Strategies to Support Pre-Clinical Preparation.

Many Indigenous communities in Canada lack access to veterinary services due to geography, affordability, and acceptability. These barriers negatively affect the health of animals, communities, and human-animal relationships. Canadian veterinary colleges offer veterinary services to Indigenous communities through fourth-year veterinary student rotations.

Adaptive immunity in influences the acquisition and abundance of in ticks.

The Lyme disease spirochete cycles between immature black-legged ticks () and vertebrate reservoir hosts, such as rodents. Larval ticks acquire spirochetes from infected hosts, and the resultant nymphs transmit the spirochetes to naïve hosts. This study investigated the impact of immunocompetence and host tissue spirochete load on host-to-tick transmission (HTT) of and the spirochete load inside immature ticks.

A retrospective study of perianesthetic and sedation deaths in dogs and cats submitted to Canadian veterinary diagnostic laboratories.

Background: Perianesthetic death or sedation death in companion animals is an infrequent but devastating complication. Few studies have investigated the pathology associated with these deaths.

Objective: To determine clinical features and postmortem findings for submissions to multiple Canadian diagnostic laboratories from perianesthetic/sedation deaths in dogs and cats.