233,666 results match your criteria: "University of Toronto; shaf.keshavjee@uhn.ca.[Affiliation]"

A Longitudinal Investigation of Trans and Nonbinary Youth Identity: Individual Processes and Family Agreement in the Trans Teen and Family Narratives Project.

LGBTQ Fam

June 2024

Division of Adolescent/Young Adult Medicine, Boston Children's Hospital, Department of Pediatrics, Harvard Medical School, Department of Social and Behavioral Sciences, Harvard T. H. Chan School of Public Health, 300 Longwood Ave, Boston, MA 02115.

Few studies have focused on transgender and nonbinary youths' (TNBY) gender development and even less well understood is how family members understand TNBY identity. The current study investigated: a) how TNBY describe their gender identity over time, and b) how family members understand TNBY gender identity over time. The baseline sample included 96 members of 33 families (33 TNBY, 48 cisgender caregivers, 15 siblings) from the United States; 30 families continued after Wave 1.

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Background: Children from racial and ethnic minority groups are at greater risk for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, but it is unclear whether they have increased risk for post-acute sequelae of SARS-CoV-2 (PASC). Our objectives were to assess whether the risk of respiratory and neurologic PASC differs by race/ethnicity and social drivers of health.

Methods: We conducted a retrospective cohort study of individuals <21 years seeking care at 24 health systems across the U.

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Sex-determining region Y box 2 (Sox2) is a critical transcription factor for embryogenesis and neural stem and progenitor cell (NSPC) maintenance. While distal enhancers control Sox2 in embryonic stem cells (ESCs), enhancers closer to the gene are implicated in Sox2 transcriptional regulation in neural development. We hypothesize that a downstream enhancer cluster, termed Sox2 regulatory regions 2-18 (SRR2-18), regulates Sox2 transcription in neural stem cells and we investigate this in NSPCs derived from mouse ESCs.

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Informal Caregiving: Health System Cost Implications.

West J Nurs Res

December 2024

Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, ON, Canada.

Background: Informal caregiving is seen as a low-cost substitute for care provided by health care professionals. However, caregiving is known to negatively impact caregivers' health and, subsequently, their health care use and costs. This could potentially offset the caregivers' contributions to the health care system.

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EXPRESS: Activation of the Motor System Following Gaze Cues is Determined by Hand Access, Not Hand Proximity.

Q J Exp Psychol (Hove)

January 2025

Centre for Motor Control, Faculty of Kinesiology & Physical Education, University of Toronto, Toronto, Ontario, Canada.

The influence of gaze cues on target prioritization (reaction times (RTs)) and movement execution (movement trajectories) differs based on the ability of the human gaze cue model to manually interact with the targets. Whereas gaze cues consistently impacted RTs, movement trajectories may only be affected when the hands of the human model had the potential to interact with the target. However, the perceived ability to interact with the targets was confounded by the proximity between the model's hands and the targets.

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Understanding social behaviours across neurodiverse young people: roles of social cognition and self-regulation.

BJPsych Open

January 2025

Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Canada; Department of Psychiatry, Temerty Faculty of Medicine, University of Toronto, Canada; Institute of Medical Science, Temerty Faculty of Medicine, University of Toronto, Canada; Department of Psychology, Faculty of Arts & Science, University of Toronto, Canada; Department of Psychiatry, The Hospital for Sick Children, Toronto, Canada; Autism Research Centre, Department of Psychiatry, University of Cambridge, UK; Department of Psychiatry, National Taiwan University Hospital, Taiwan; and Department of Psychiatry, National Taiwan University College of Medicine, Taiwan.

Background: Differences in social behaviours are common in young people with neurodevelopmental conditions (NDCs). Recent research challenges the long-standing hypothesis that difficulties in social cognition explain social behaviour differences.

Aims: We examined how difficulties regulating one's behaviour, emotions and thoughts to adapt to environmental demands (i.

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Association between white blood cell count and coronary artery bypass graft failure: an individual patient data analysis of clinical trials.

J Cardiothorac Surg

January 2025

Department of Cardiothoracic Surgery, Weill Cornell Medicine, 525 E 68th St, New York, NY, 10065, USA.

Background: Baseline systemic inflammation is associated with worse long-term outcomes after coronary artery bypass grafting [CABG], but the mechanisms of this association are unclear. This study aims to explore the association between pre-operative white blood cell [WBC] count and CABG graft failure.

Methods: We pooled individual patient data from two randomized clinical trials with systematic CABG graft imaging.

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This article explores the rise of comics-based research (CBR) as an innovative method for disseminating and translating academic findings to broader audiences. Rooted in the established use of comics in technical communication, CBR takes the unique strengths of graphic media-accessibility, multimodal engagement, and visual storytelling-to communicate complex concepts to diverse audiences, particularly in health-related disciplines. A recent development in this field is the comic research abstract, a concise, visually enriched alternative to traditional textual abstracts.

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Persimmon (Diospyros kaki L.) leaves are a traditional medicinal herb used for treating many infectious and inflammatory-related conditions, including wound healing. To validate its traditional use, our study evaluates the acute toxicity and wound-healing effects of methanolic extracts of Persimmon (Diospyros kaki L.

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Competitive athletes report symptoms of depression and anxiety at rates similar to or higher than the general population. There is some initial evidence that difficulties in emotion regulation are positively associated with depression, anxiety, and stress among university student-athletes; however, research on emotion dysregulation in sport contexts is limited. Therefore, the purpose of the current study was to examine the associations between emotion dysregulation, sport performance concerns, and symptoms of depression and anxiety among competitive athletes.

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Recent research has identified sex-dependent links between risk taking behaviors, approach-avoidance bias and alcohol intake. However, preclinical studies have typically assessed alcohol drinking using a singular dimension of intake (i.e.

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Green Nuclear Medicine and Radiotheranostics.

J Nucl Med

January 2025

Division of Nuclear Medicine and Oncological Imaging, Department of Medical Physics, CHU of Liège, Quartier Hôpital, Liège, Belgium.

There is a significantly growing interest in diagnostic and therapeutic radiopharmaceuticals, and it is foreseeable that an unprecedented number of patients will need to be treated with new nuclear medicine therapies. This predicted increase will have potentially significant environmental impacts. In this discussion, we show different areas of impact, as well as possible measures to reduce such impact.

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KDIGO 2025 clinical practice guideline for the evaluation, management, and treatment of autosomal dominant polycystic kidney disease (ADPKD): executive summary.

Kidney Int

February 2025

Institute of Physiology, University of Zurich, Zurich, Switzerland; Division of Nephrology, Cliniques universitaires Saint-Luc, UCLouvain Medical School, Brussels, Belgium. Electronic address:

The Kidney Disease: Improving Global Outcomes (KDIGO) 2025 Clinical Practice Guideline for the Evaluation, Management, and Treatment of Autosomal Dominant Polycystic Kidney Disease (ADPKD) represents the first KDIGO guideline on this subject. Its scope includes nomenclature, diagnosis, prognosis, and prevalence; kidney manifestations; chronic kidney disease (CKD) management and progression, kidney failure, and kidney replacement therapy; therapies to delay progression of kidney disease; polycystic liver disease; intracranial aneurysms and other extrarenal manifestations; lifestyle and psychosocial aspects; pregnancy and reproductive issues; pediatric issues; and approaches to the management of people with ADPKD. The guideline has been developed with patient partners, clinicians, and researchers around the world, with the goal to generate a useful resource for healthcare providers and patients by providing actionable recommendations.

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Homozygous missense variant in causes early-onset neurodegeneration, leukoencephalopathy and autoinflammation.

J Med Genet

January 2025

Division of Clinical and Metabolic Genetics, Department of Paediatrics, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada

Biallelic pathogenic variants in cause a fatal autosomal recessive multisystem disorder characterized by recurrent autoinflammation, hypomyelination, progressive neurodegeneration, microcephaly, failure to thrive, liver dysfunction, respiratory chain defects and accumulation of glycogen in skeletal muscle. No missense variants in have been reported to date.We report a 6-year-old boy with microcephaly, global developmental delays, lower limb spasticity with hyperreflexia, epilepsy, abnormal brain MRI, failure to thrive, recurrent fevers and transaminitis.

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Background: Pericardial complications following cardiac surgery are common and debilitating, significantly impacting patients' survival. We performed this network meta-analysis to identify the most effective and safest preventions and treatments for pericardial complications following cardiac surgery.

Methods: We systematically searched PubMed/MEDLINE, EMBASE and Cochrane CENTRAL from inception to 22 January 2024.

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Background: Evidence-based mental health requires patient-relevant outcome data, but many indicators lack clinical meaning and fail to consider youth perceptions. The minimally important change (MIC) indicator designates change as meaningful to patients, yet is rarely reported in youth mental health trials.

Objective: This study aimed to establish MIC thresholds for two patient-reported outcome measures (PROMs), the Columbia Impairment Scale (CIS) and the Strengths and Difficulties Questionnaire (SDQ), using different estimation methods.

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Long-term Mental Health Morbidity in Adult Survivors of COVID-19 Critical Illness - A Population-based Cohort Study.

Chest

January 2025

Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada; Division of Critical Care, Department of Medicine, University of Ottawa, Ottawa, ON, Canada; Institut du Savoir Montfort, Hôpital Montfort, Ottawa, ON, Canada.

Background: Survivorship after coronavirus disease 2019 (COVID-19) critical illness may be associated with important long-term sequelae, but little is known regarding mental health outcomes.

Research Question: What is the association between COVID-19 critical illness and new post-discharge mental health diagnoses.

Study Design: AND METHODS: We conducted a population-based cohort study in Ontario, Canada (January 1, 2020-March 31, 2022).

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Phase II Randomized Trial of BI 730357, a Novel Oral RORγt Inhibitor, for Moderate-to-Severe Plaque Psoriasis.

J Invest Dermatol

January 2025

Probity Medical Research, Inc., Waterloo, ON, Canada; Alliance Clinical Trials, Waterloo, ON, Canada; Division of Dermatology, University of Toronto School of Medicine, Toronto, ON, Canada.

Trial Design: This two-part, double-blinded trial assessed the truncated retinoic acid-related orphan receptor γ (RORγt) inhibitor BI 730357 in plaque psoriasis.

Methods: Part 1: patients were randomized 2:2:2:2:1 to BI 730357 25, 50, 100, 200 mg, or placebo once daily (qd; fasting conditions); non-responders switched to higher doses. Part 2: a separate patient set was randomized 4:4:1 to BI 730357 400 mg qd, 200 mg twice daily, or placebo (fed conditions).

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Malperfusion in Patients with Acute Type A Aortic Dissection: A Nationwide Analysis.

Ann Thorac Surg

January 2025

Division of Cardiovascular Surgery, University of Pennsylvania, Philadelphia, PA; Leonard Davis Institute, University of Pennsylvania, Philadelphia, PA; Penn Cardiovascular Outcomes, Quality, & Evaluative Research Center, Philadelphia, PA.

Background: This study describes in detail the clinical burden of malperfusion associated with acute Type A aortic dissection (ATAAD) in a large, national cohort and the effect of treatment strategy on outcomes.

Methods: All patients undergoing repair of ATAAD between 2017 and 2020 in the Society of Thoracic Surgeons (STS) Adult Cardiac Surgery Database were studied. Malperfusion was defined using STS definitions based on imaging or surgeon's evaluation.

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Sex-specific DNA methylation marks associated with sex-biased risk of recurrence in unprovoked venous thromboembolism.

J Thromb Haemost

January 2025

Dalla Lana School of Public Health, University of Toronto, Toronto, Canada; Office of the Vice-Principal of Research and Innovation, University of Toronto Mississauga, Mississauga, Canada. Electronic address:

Background: Whether to stop oral anticoagulants after a first unprovoked venous thromboembolism (VTE) is challenging, partially due to an intriguingly higher risk of VTE recurrence (rVTE) in men after therapy discontinuation. DNA methylation (DNAm) differences between men and women might underly this sex-biased rVTE risk difference.

Aim: To investigate sex-specific associations between DNAm at cytosine-phosphate-guanine (CpG) sites and rVTE.

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Objectives: The global mpox (clade II) outbreak of 2022 primarily affected gay, bisexual, and other men who have sex with men (GBM) and was met with swift community and public health responses. We aimed to estimate the relative impact of changes in sexual behaviours, contact tracing/isolation, and first-dose vaccination on transmission in Canadian cities.

Methods: We estimated changes in sexual behaviours during the outbreak using 2022 data from the Engage Cohort Study which recruited self-identified GBM in Montréal, Toronto, and Vancouver (n=1,445).

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Development of a health equity tool in resuscitation sciences and application to current research in extracorporeal cardiopulmonary resuscitation for cardiac arrest.

Resuscitation

January 2025

Department of Emergency Services, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Division of Emergency Medicine, Department of Medicine, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.

Background: Extracorporeal cardiopulmonary resuscitation (ECPR) is increasingly used for adults with cardiac arrest (CA) refractory to Advanced Cardiovascular Life Support (ACLS). Concerns exist that adding ECPR could worsen health inequities, defined as differences in health outcomes that are unfair or unjust. Current guidelines do not explicitly address this issue.

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Sex differences exist in acute kidney injury (AKI), and the role that sex and gender play along the AKI care continuum remains unclear. The 33 Acute Disease Quality Initiative meeting evaluated available data on the role of sex and gender in AKI and identified knowledge gaps. Data from experimental models, pathophysiology, epidemiology, clinical care, gender, social determinants of health, education, and advocacy were reviewed.

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