Publications by authors named "Gagnon C"

Infectious bronchitis virus (IBV) is an important avian pathogen with a positive-sense single-stranded RNA genome. IBV is the causative agent of infectious bronchitis (IB), a primarily respiratory disease affecting chickens, with the ability to disseminate to other organ systems, such as the gastrointestinal, renal, lymphoid, and reproductive systems. Tracheal epithelial cells are the primary target of IBV, and these cells play a vital role in the effective induction of the antiviral response and eventual clearance of IBV.

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Rationale: Stable oxygen isotope measurements in silicate clays, such as smectite and kaolinite, provide crucial information for understanding Earth's climate history and environmental changes. Despite a growing interest in the oxygen isotope analysis of silicate clays and clay-rich sediments, there lacks a consensus on the preparation and standardization of clay mineral samples. To improve the accuracy and interlaboratory comparisons of clay isotope measurements, especially those involving laser fluorination techniques, newly established kaolinite and smectite oxygen isotope standards are much needed.

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Background: An International Working Group (IWG) developed new guidelines on the diagnosis, evaluation, management, and monitoring of X-linked hypophosphatemia (XLH) in children. Over the past 5 years, important advances have occurred in our understanding of the presentation, complications and treatment of XLH.

Methods: A group of 50 international experts in XLH from Canada, the United States, Europe, Asia and South America, along with methodology experts and patient partners, held 18 teleconference meetings in 2023-2024.

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This randomized controlled trial compared the effects of home-based exercise, with or without cognitive training, on cognition and physical function in individuals aged 50 years and older with stable CVD during the COVID-19 pandemic. 122 patients (67.3 ± 7.

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The control of equine respiratory infections is a biosecurity challenge. Respiratory viruses are often rapidly detected using quantitative polymerase chain reaction (qPCR) on nasal swabs. In the past, some laboratories developed handmade techniques to increase the amount of nasal secretions collected, without comparing them with nasal swabs when qPCR replaced the use of viral culture.

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Article Synopsis
  • The study aimed to evaluate the most reliable evidence for managing X-linked hypophosphatemia (XLH) in adults to help shape treatment recommendations.
  • After reviewing over 4,000 records, only one clinical trial and two observational studies met the criteria, showing that burosumab likely helps with pain from fractures but has a limited effect on other symptoms like fatigue and stiffness.
  • There are currently no strong comparisons between burosumab and conventional treatments, highlighting a significant gap in data regarding their long-term effectiveness on important patient outcomes.
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Oculopharyngeal muscular dystrophy (OPMD) is a rare late-onset muscle disease with progressive dysphagia as a major symptom. The Dysphagiameter is a newly developed patient-reported outcome measure (PROM) to assess the severity of dysphagia and its impact in patients with OPMD. This article reports on item reduction and a first assessment of the Dysphagiameter's psychometrics properties, in a French and English-speaking population of individuals with OPMD.

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  • The study focuses on identifying valid digital-motor outcome measures using wearable sensors for spastic paraplegia type 7 (SPG7), a common spastic ataxia, aiming to reflect health aspects relevant to patients in early disease stages and suitable for multicenter trials.
  • Gait analysis was performed in 65 SPG7 patients and 50 healthy controls, where 18 out of 30 analyzed gait measures effectively discriminated between the two groups, even in mild disease stages.
  • Key findings highlighted that specific spatiotemporal variability measures strongly correlate with functional mobility and overall disease severity, indicating their potential as sensitive outcome measures for future trials.
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  • Cardiac rehabilitation programs can help patients with atherosclerotic cardiovascular diseases (ASCVD) adopt healthier lifestyles, but there’s a need to explore strategies for reversing conditions like prediabetes and metabolic syndrome.
  • The DIABEPIC-1 study evaluated a 6-month enhanced rehabilitation program combining exercise with nutritional interventions, such as a Mediterranean diet and reduced ultraprocessed food intake.
  • Results showed high participation rates and significant health improvements, with half of the participants achieving prediabetes remission and 70% with metabolic syndrome also reaching remission by the end of the study.
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The main objective was to document the differences between drinking times and oral perception between liquids in individuals with dysphagia. A second objective was to assess variations in consistency categorization across instruments. A third objective was to explore the relationship between drinking time and dysphagia severity.

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Background: Structured and supervised physical exercise and cognitive training are two efficient ways to enhance cognition in older adults. Performing both within a combined intervention could maximize their effect on cognition due to their potential synergy on brain functions. During the COVID-19 pandemic, these interventions were particularly relevant due to the collateral impact of social restrictions regarding physical activity and the level of cognitive stimulation.

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Background: Patients can experience persistent cognitive complaints and deficits in long-COVID. Inflammation and capillary damage may contribute to symptoms by interfering with tissue oxygenation.

Methods: This was an exploratory pilot crossover study designed to describe the effects of supplemental oxygen (portable oxygen concentrator, POC) on cognitive performance and peripheral and cerebral oxygen saturation at rest and exercise.

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  • * The tumor identified was a sex cord-stromal (granulosa cell) tumor, and the heifer's sex chromosome type was confirmed to be XX, indicating an ovotesticular disorder of sexual development with female characteristics.
  • * This case highlights that while disorders of sexual development are common in mammals, the occurrence of gonadal tumors in these conditions is infrequent and has not been previously documented in cattle.
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Copper oxide nanoparticles (CuO-NPs) are widely used for their catalytic properties, conductive capacity, and innovations in the fields of superconductors, alloys, and solar energy sensors. To better understand the impact of water chemistry on the stability of CuO nanoparticles, a series of measurements were carried out on nanoparticles suspended in pure water, natural water, and water enriched with natural organic matter fulvic acid (FA). ICP-MS characterization in single-particle mode (SP-ICP-MS) was performed to determine the stability or transformation of nanoparticles in contrasting water conditions.

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  • Conventional therapy for hypoparathyroidism helps with hypocalcemia symptoms but doesn't fix low parathyroid hormone (PTH) levels; TransCon PTH (palopegteriparatide) is being studied as a potential long-term treatment.
  • A Phase 3 trial involved 82 adults across 21 sites in North America and Europe, with participants receiving TransCon PTH daily during a 156-week open-label period after an initial 26-week placebo-controlled phase.
  • Results showed that by week 52, 81% of participants achieved normal serum calcium levels without needing conventional therapy, improved their quality of life, and experienced mostly mild to moderate side effects, indicating the treatment's sustained efficacy and safety.
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Purpose Of Review: To provide a comprehensive overview of hypertriglyceridemia (HTG) in youth, identifying gaps in categorizing triglyceride (TG) levels and management strategies, and exploring new therapies for TG reduction.

Recent Findings: Non-fasting TG levels as important cardiovascular (CV) risk indicators, with HTG's pathophysiology involving genetic and secondary factors affecting TG metabolism. Emerging treatments, including those affecting the lipoprotein lipase complex and inhibiting proteins like apoC3 and ANGPTL3, show promise.

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  • Limited understanding exists about how oculopharyngeal muscular dystrophy (OPMD) affects daily and social activities, which poses challenges for occupational therapy.
  • A study with 34 participants revealed that OPMD significantly reduces social participation, especially in those over 60 years old, with walking speed being a key factor for engagement in activities.
  • The findings highlight the importance of addressing both mobility issues and dysphagia in therapy to improve social participation for individuals with OPMD.
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Background: Potentially inappropriate medications (PIMs) are medications whereby the harms may outweigh the benefits for a given individual. Although overprescribed to older adults, their direct costs on the healthcare system are poorly described.

Methods: This was a cross-sectional study of the cost of PIMs for Canadians aged 65 and older, using adapted criteria from the American Geriatrics Society.

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Purpose: Limited studies have used natural language processing (NLP) in the context of non-small cell lung cancer (NSCLC). This study aimed to validate the application of an NLP model to an NSCLC cohort by extracting NSCLC concepts from free-text medical notes and converting them to structured, interpretable data.

Methods: Patients with a lung neoplasm, NSCLC histology, and treatment information in their notes were selected from a repository of over 27 million patients.

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A necropsy was performed on a Common Raven () presenting an opportunistic fungal respiratory infection and a bursal lymphoid depletion with inclusion bodies, suggestive of a circovirus infection. High-throughput sequencing of circular DNA in the bursa of Fabricius revealed a complete genome sequence of a strain.

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Non-alcoholic fatty liver disease (NAFLD) affects 25% of the adult population with no effective drug treatments available. Previous animal studies reported that a polyphenol-rich extract from the Amazonian berry camu-camu (CC) prevented hepatic steatosis in a mouse model of diet-induced obesity. This study aims to determine the impact of CC on hepatic steatosis (primary outcome) and evaluate changes in metabolic and gut microbiota profiles (exploratory outcomes).

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Background: Maple syrup, a minimally transformed sweetener rich in polyphenols, can exert a action and improve metabolic parameters in animal models. However, no randomized clinical trial has investigated this.

Objectives: This study aims to determine whether replacing refined sugars with an equivalent quantity of maple syrup could decrease key cardiometabolic risk factors in individuals with mild metabolic alterations.

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Context: Renin-angiotensin-aldosterone system (RAAS) activation is closely linked to obesity; however, the sex-specific associations between RAAS activity and body composition among individuals without obesity are not well understood.

Objective: To investigate the associations of aldosterone and renin with body composition according to sex in the general population.

Design: Population-based cohort study.

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People use dietary supplements to offset nutritional deficiencies and manage metabolic dysfunction. While the beneficial effect of fish proteins on glucose homeostasis is well established, the ability of fish peptides to replicate the protein findings is less clear. With financial support from a programmatic Canadian Institutes of Health Research (CIHR) Team grant, we aimed to identify salmon peptide fractions (SPFs) with the potential to mitigate metabolic dysfunction.

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