1,157,651 results match your criteria: "Canada ; Laval University[Affiliation]"
Androgens are pleiotropic and play pivotal roles in the formation and variation of sexual phenotypes. We show that differences in circulating androgens between the three male mating morphs in ruff sandpipers are linked to 17-beta hydroxysteroid dehydrogenase 2 (HSD17B2), encoded by a gene within the supergene that determines the morphs. Low-testosterone males had higher expression in blood than high-testosterone males, as well as in brain areas related to social behaviors and testosterone production.
View Article and Find Full Text PDFBr J Dermatol
January 2025
Department of Dermatology, Oregon Health & Science University, Portland, Oregon, USA.
Background: Atopic dermatitis (AD) is a chronic inflammatory skin disease, characterized by eczematous skin lesions and pruritus. There is an unmet need for effective first-line systemic therapies with good safety profiles, particularly oral medications. Orismilast is a novel first-in-class oral phosphodiesterase-4 (PDE4) B/D inhibitor under investigation for the treatment of moderate-to-severe AD.
View Article and Find Full Text PDFBr J Radiol
January 2025
Joint Department of Medical Imaging, University Medical Imaging Toronto (UMIT), University Health Network, Mount Sinai Hospital & Women's College Hospital; University of Toronto, Toronto, ON, Canada.
Objectives: To evaluate 18F-DCFPyL-PET/MRI whole-gland-derived radiomics for detecting clinically significant (cs) prostate cancer (PCa) and predicting metastasis.
Methods: Therapy-naïve PCa patients who underwent 18F-DCFPyL PET/MRI were included. Whole-prostate-segmentation was performed.
Environ Toxicol Chem
January 2025
Windward Environmental LLC, Seattle, WA, USA.
Monitoring selenium (Se) concentrations in fish ovaries is an important tool for evaluating the ecological risk posed by Se in aquatic systems. Most guidance recommends sampling fish ovaries as closely as possible to when fish spawn on the premise that Se is mobilized from the liver to the ovary during vitellogenesis, and therefore, sampling ovaries during the early phases of oocyte maturation may underestimate egg Se concentrations at the time of spawning. In this study, we evaluated ovary Se data from two species with synchronous oocyte development (Ptychocheilus oregonensis and Prosopium williamsoni), one species with asynchronous oocyte development (Richardsonius balteatus), and one where the mode of development is unclear (Mylocheilus caurinus).
View Article and Find Full Text PDFRadiographics
February 2025
From the Department of Radiology, Hong Kong Children's Hospital, Kowloon Bay, Hong Kong (K.F.K.F.); Department of Diagnostic and Interventional Radiology, The Hospital for Sick Children, Toronto, Ontario, Canada (K.F.K.F.); Department of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, Conn (I.D.d.O.S.); Department of Radiology, Division of Musculoskeletal and Intervention, University of Washington, Seattle, Wash (A.P.); Department of Radiology, Bai Jerbai Wadia Hospital for Children, Mumbai, India (F.G.); and Division of Body Imaging, Department of Radiology, University of Iowa Health Care, Iowa City, Iowa (Y.A.).
J Clin Invest
January 2025
Department of Pharmacology, University of Michigan Medical School, Ann Arbor, United States of America.
Dravet syndrome (DS) is a developmental and epileptic encephalopathy (DEE) that begins in the first year of life. While most cases of DS are caused by variants in SCN1A, variants in SCN1B, encoding voltage-gated sodium channel β1 subunits, are also linked to DS or to the more severe early infantile DEE. Both disorders fall under the OMIM term DEE52.
View Article and Find Full Text PDFJ Natl Cancer Inst
January 2025
Department of Pediatrics, Division of Hematology-Oncology, Montreal Children's Hospital, McGill University Health Centre, Montreal, QC H4A5S9, Canada.
Annu Rev Pharmacol Toxicol
January 2025
Institute of Digestive Health Research (IRSD), Toulouse University, INSERM 1022, INRAe, ENVT, University of Toulouse III Paul Sabatier, Toulouse, France;
Chronic inflammation is a common trait in the pathogenesis of several diseases of the gut, including inflammatory bowel disease and celiac disease. Control of the inflammatory response is crucial in these pathologies to avoid tissue destruction and loss of intestinal function. Over the last 50 years, the identification of the mechanisms and mediators involved in the acute phase of the inflammatory response, which is characterized by massive leukocyte recruitment, has led to a number of therapeutic options.
View Article and Find Full Text PDFAnnu Rev Pharmacol Toxicol
January 2025
Department of Pharmacology and Toxicology, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada; email:
G protein-coupled receptors (GPCRs) represent the largest family of plasma membrane proteins targeted for therapeutic development. For decades, GPCRs were investigated as monomeric entities during analysis of their pharmacology or signaling and during drug development. However, a considerable body of evidence now indicates that GPCRs function as dimers or higher-order oligomers.
View Article and Find Full Text PDFJ Burn Care Res
January 2025
School of Physical and Occupational Therapy, McGill University.
Fear avoidance (FA) describes beliefs and behaviors related to avoiding movements or activities after a painful event. FA is a prevalent issue that limits the recovery outcomes and social reintegration of burn survivors. However, as current literature focuses on chronic conditions, understanding the impact and treatment of FA within sudden onset musculoskeletal (MSK) conditions, specifically in the burn survivor population, is lacking.
View Article and Find Full Text PDFJ Med Internet Res
January 2025
Institute for Better Health, Trillium Health Partners, Mississauga, ON, Canada.
Background: Patient portals, or secure websites linked to electronic medical records, have emerged as tools to provide patients with timely access to their health information. To support the potential benefits of patient portals such as improved engagement in health care, it is essential to understand how patients and caregivers experience these portals.
Objective: This study aimed to explore patient and caregiver experiences, facilitators, and barriers to accessing and using a patient portal called MyChart during the initial stages of its implementation.
JMIR Form Res
January 2025
Department of Psychology, Lakehead University, Thunder Bay, ON, Canada.
Background: The minimal clinically important difference (MCID) is an important threshold to consider when evaluating the meaningfulness of improvement following an intervention. The JoyPop app is an evidence-based smartphone app designed to improve resilience and emotion regulation. Information is needed regarding the JoyPop app's MCID among culturally diverse youth.
View Article and Find Full Text PDFJMIR Res Protoc
January 2025
School of Human Nutrition, McGill University, Sainte-Anne-de-Bellevue, QC, Canada.
Background: The 2019 Canada's Food Guide provides universal recommendations to individuals aged ≥2 years. However, the extent to which these recommendations are appropriate for older adults is unknown. Although ideal, conducting a large randomized controlled trial is unrealistic in the short term.
View Article and Find Full Text PDFDermatol Surg
January 2025
Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts.
Background: From the theoretical foundations of laser and energy-based applications for the skin to the development of advanced medical devices, the field of dermatologic surgery has undergone transformative changes.
Objective: To review the scientific and clinical advancement of laser and energy-based therapies within dermatologic surgery.
Materials And Methods: A literature search was conducted to identify important scientific advancements and landmark studies on light, laser, and energy-based devices within the field of dermatologic surgery.
Proc Natl Acad Sci U S A
January 2025
Yale Jackson School of Global Affairs, Yale University, New Haven, CT 06511.
The recent COVID-19 pandemic offers a rare opportunity to understand how citizens attribute responsibility for governments' responses to unanticipated negative-and in this case, systemic-exogenous shocks. Classical accounts of responsibility are complicated when crises are pervasive, involve multiple valence dimensions, and where individuals can make relative assessments of performance. We fielded a conjoint experiment in 16 countries with 22,147 respondents.
View Article and Find Full Text PDFAdv Ther
January 2025
Cytel, Inc., Waltham, MA, USA.
Introduction: Fabry disease (FD) is a rare lysosomal storage disorder that is associated with pain and progressive damage to the renal, cardiac, and cerebrovascular systems. Enzyme replacement therapy (ERT) is one of the treatment options for FD and the most recently approved ERT agent, pegunigalsidase alfa, has shown clinical efficacy in three phase 3 clinical trials of adults with FD: BALANCE, BRIDGE, and BRIGHT. Recent published guidelines support the mapping of health utility state data to the EuroQol-5 Dimension-3 Level (EQ-5D-3L) index to align with the preferred methodology used by the National Institute for Health and Care Excellence (NICE).
View Article and Find Full Text PDFMol Cell Biochem
January 2025
Division of BioMedical Sciences, Faculty of Medicine, Memorial University of Newfoundland, St. John's, Newfoundland and Labrador, A1B 3V6, Canada.
Sports Med Open
January 2025
Faculty of Health Sciences, Ontario Tech University, Oshawa, Canada.
In the last thirty years research on relative age effects (RAEs) has exploded in numbers. However, the stability and variability of these effects have hardly been investigated. The three aims of this retrospective study were first to investigate the stability and variability of RAEs over 17 years, second to compare these effects for young female and male athletes, and third to compare these effects between selected and non-selected athletes relative to variability estimates from 17 years prior to assess possible changes in athlete development trends.
View Article and Find Full Text PDFMetab Brain Dis
January 2025
Hepato-Neuro Laboratory, Centre Hospitalier de l'Université de Montréal (CRCHUM), Université de Montréal, 900, Rue Saint-Denis - Pavillon R, R08.422, Montréal (Québec), H2X 0A9, Canada.
Sarcopenia and hepatic encephalopathy (HE) are complications of chronic liver disease (CLD), which negatively impact clinical outcomes. Hyperammonemia is considered to be the central component in the pathogenesis of HE, however ammonia's toxic effects have also been shown to impinge on extracerebral organs including the muscle. Our aim was to investigate the effect of attenuating hyperammonemia with ornithine phenylacetate (OP) on muscle mass loss and associated molecular mechanisms in rats with CLD.
View Article and Find Full Text PDFBreast Cancer Res Treat
January 2025
Medical Oncology, British Columbia Cancer Agency, Vancouver, BC, Canada.
Purpose: Understanding real-world treatment patterns and their effectiveness in HR + HER2- advanced breast cancer (aBC) in Canadian patients.
Patient And Methods: This was a multi-center, observational, prospective cohort study including men and pre-/peri-/postmenopausal women with HR + HER2- aBC receiving endocrine therapy (ET) or ET + targeted therapy (ET + TT). The primary objective was duration of treatment (DOT) with ET and ET + TT.
Cogn Res Princ Implic
January 2025
Department of Psychology and Centre for Integrative and Applied Neuroscience, York University, 4700 Keele St., Toronto, ON, M3J 1P3, Canada.
Developing ways to predict and encourage vaccine booster uptake are necessary for durable immunity responses. In a multi-nation sample, recruited in June-August 2021, we assessed delay discounting (one's tendency to choose smaller immediate rewards over larger future rewards), COVID-19 vaccination status, demographics, and distress level. Participants who reported being vaccinated were invited back one year later (n = 2547) to report their willingness to receive a booster dose, along with reasons for their decision.
View Article and Find Full Text PDFCurr Cardiol Rep
January 2025
Department of Cardiac Sciences, University of Calgary and Libin Cardiovascular Institute, Calgary, AB, Canada.
Purpose Of Review: This review evaluates recent advancements in Technetium-99 m pyrophosphate (99mTc-PYP) imaging for transthyretin amyloid cardiomyopathy (ATTR-CM). We summarize the advantages of single-photon emission computed tomography (SPECT) over planar imaging, the potential impact of quantitative methods, and emerging data for quantifying response to therapy.
Recent Findings: The current literature demonstrates the superior diagnostic accuracy of SPECT compared with planar imaging in 99mTc-PYP studies.
Bull Math Biol
January 2025
Department of Biology, Memorial University of Newfoundland, St. John's, NL, Canada.
Mosquitoes are important vectors for the transmission of some major infectious diseases of humans, i.e., malaria, dengue, West Nile Virus and Zika virus.
View Article and Find Full Text PDFHernia
January 2025
Department of Surgery, Shouldice Hospital, Markham, ON, Canada.
Purpose: The aim of the study was to evaluate operative time and postoperative complications of 4 post-training specialized surgeons.
Methods: This was a pilot retrospective chart review to determine the learning curve of a Shouldice primary inguinal hernia repair (Shouldice Repair) of 4 post-training specialized surgeons, at the Shouldice Hospital. The first 300 Shouldice Repairs (early learning block) were compared to their 900-1,000 repairs as the primary operating surgeon (late learning block).
Int J Qual Health Care
January 2025
Department of Health Policy, Management and Evaluation, School of Public Health, University of Montréal, Montréal, Québec, Canada; Research Centre of the University of Montreal Hospital Centre, Montréal, Québec, Canada.