274,013 results match your criteria: "Toronto & University of Toronto[Affiliation]"

Metabolomic in severe traumatic brain injury: exploring primary, secondary injuries, diagnosis, and severity.

Crit Care

January 2025

Department of Critical Care Medicine, Cumming School of Medicine, Health Research Innovation Center (HRIC), University of Calgary, Room 4C64, 3280 Hospital Drive N.W., Calgary, AB, T2N 4Z6, Canada.

Background: Traumatic brain injury (TBI) is a major public health concern worldwide, contributing to high rates of injury-related death and disability. Severe traumatic brain injury (sTBI), although it accounts for only 10% of all TBI cases, results in a mortality rate of 30-40% and a significant burden of disability in those that survive. This study explored the potential of metabolomics in the diagnosis of sTBI and explored the potential of metabolomics to examine probable primary and secondary brain injury in sTBI.

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Background: Preeclampsia significantly impacts maternal and perinatal health. Early screening using advanced models and primary prevention with low-dose acetylsalicylic acid for high-risk populations is crucial to reduce the disease's incidence. This study assesses the feasibility of implementing preterm preeclampsia screening and prevention by leveraging information from our current aneuploidy screening program in a real-world setting with geographic separation clinical site and laboratory analysis site.

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Parkinson's disease (PD) is a progressive disorder that affects the nervous system and causes regions of the brain to deteriorate. In this study, we investigated the effects of MR-guided focused ultrasound (MRgFUS) for the delivery of human mesenchymal stem cells (MSCs) on the 6-hydroxydopamine (6-HODA)-induced PD rat model. MRgFUS-induced blood-brain barrier (BBB) permeability modulation was conducted using an acoustic controller with the targets at the striatum (ST) and SN.

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Neisseria gonorrhoeae is an on-going public health problem due in part to the lack of success with efforts to develop an efficacious vaccine to prevent this sexually transmitted infection. The gonococcal transferrin binding protein B (TbpB) is an attractive candidate vaccine antigen. However, it exhibits high levels of antigenic variability, posing a significant obstacle in evoking a broadly protective immune response.

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Background: This study seeks to analyze the trajectories of residential satisfaction among older adults before and after relocation and explore the variability in the relationship between relocation and residential satisfaction based on changes in housing conditions during the relocation process.

Methods: Utilizing a nationally representative longitudinal dataset of older adults (N = 2718), this study employs individual-level fixed effect regression models to estimate the association between the timing of relocation and residential satisfaction. Stratified analyses are also conducted to explore how this association varies based on changes in housing conditions.

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Precarious employment (PE) is a major determinant of population health and contributor to health and social inequities. The purpose of this article is to synthesize and critically appraise available evidence on labor market initiatives addressing PE identified through a systematic review. Of the 21 initiatives reviewed, grouped into four categories-labor market policies, legislation, and reforms; union strategies; apprenticeships and other youth programs; social protection programs-10 showed consistently positive outcomes and 11 a combination of negative, mixed, or inconclusive outcomes.

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Background: An initial decline in estimated glomerular filtration rate (eGFR) often leads to reluctance to continue life-saving therapies in patients with heart failure (HF).

Objectives: The goal of this study was to describe the association between initial decline in eGFR and subsequent clinical outcomes in patients randomized to placebo or finerenone.

Methods: In this prespecified analysis of FINEARTS-HF (Finerenone Trial to Investigate Efficacy and Safety Superior to Placebo in Patients with Heart Failure), we examined the association between initial decline in eGFR (≥15%) from randomization to 1 month and subsequent outcomes in patients assigned to finerenone or placebo.

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Effect of Characteristic Inflammatory and Structural Pelvic Magnetic Resonance Imaging Lesions on Expert Assessment of Axial Juvenile Spondyloarthritis.

J Rheumatol

January 2025

P.F. Weiss, MD, MSCE, Department of Pediatrics, Division of Rheumatology and Clinical Futures, Children's Hospital of Philadelphia and Center for Clinical Epidemiology and Biostatistics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA. Pennsylvania, USA.

Objective: To evaluate the influence of pelvic magnetic resonance imaging (MRI) findings on axial disease assessment in juvenile spondyloarthritis (JSpA).

Methods: This was a cross-sectional study of patients with JSpA with suspected axial disease. Three experts reviewed each case and rated their confidence (-3 to +3) in the presence of axial disease, first with clinical data and second with clinical and MRI data.

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Although race is socially constructed, racism and racialization are social determinants of health. Over four centuries of colonial genocide and structural violence against Indigenous and Black peoples in Canada have resulted in intergeneration traumas and health disparities among Indigenous and Black people, sustained by ongoing social, political, and economic inequities. Evidence indicates the impact of contemporary and historical forms of racism on health outcomes.

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Does Intravenous Tranexamic Acid Reduce Blood Loss at the Time of Total Colpocleisis? A Randomized Double-Blind Placebo-Controlled Trial.

J Minim Invasive Gynecol

January 2025

Division of Urogynecology, Department of Obstetrics and Gynaecology, Mount Sinai Hospital, University of Toronto, Toronto, Ontario, Canada; Present Affiliation (not associated with study): Department of Obstetrics and Gynecology, Cambridge Memorial Hospital, Cambridge, Ontario, Canada.

Objective: To determine the efficacy of intravenous (IV) tranexamic acid (TXA) in reducing blood loss and blood transfusion among women undergoing total colpocleisis.

Design: Double-blind, randomized, placebo-controlled trial.

Setting: Tertiary academic urogynecology practice.

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Hoarding Disorder (HD) is marked by the inability to discard possessions, and often excessive acquiring, which results in cluttered living spaces that substantially disrupt daily life. While the Saving Inventory-Revised (SI-R) serves as a reliable and valid tool for assessing hoarding severity, its length may preclude routine use. We aimed to develop a valid shorter version of the scale using Item Response Theory and Confirmatory Factor Analysis in a non-selected sample of 2890 individuals and a clinical HD sample of 200 participants, which were divided into test and confirmatory samples in a 2:1 ratio.

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Background: This study explored the ethical issues associated with community-based HIV testing among African, Caribbean, and Black (ACB) populations in Canada, focusing on their perceptions of consent, privacy, and the management of HIV-related data and bio-samples.

Methods: A qualitative community-based participatory research (CBPR) approach was employed to actively engage ACB community members in shaping the research process. The design included in-depth qualitative interviews with 33 ACB community members in Manitoba, Canada.

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Background: The 'Ottawa Depression Algorithm' is an evidence-based online tool developed to support primary care professionals care for adults with depression. Uptake of such tools require provider behaviour change. Identifying issues which may impact use of an innovation in routine practice (i.

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Clinical leverages and pressures are often utilized in psychiatric treatment settings. Clinicians know they are controversial but think of them as useful and relatively harmless. Perception of coercion is known to be deleterious to therapeutic relationship and clinical outcomes.

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Delayed onset of ocean acidification in the Gulf of Maine.

Sci Rep

January 2025

Department of Botany, Smithsonian Institution, National Museum of Natural History, Washington, DC, 20013, USA.

The Gulf of Maine holds significant ecological and economic value for fisheries and communities in north-eastern North America. However, there is apprehension regarding its vulnerability to the effects of increasing atmospheric CO. Substantial recent warming and the inflow of low alkalinity waters into the Gulf of Maine have raised concerns about the impact of ocean acidification on resident marine calcifiers (e.

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As the global quest for sustainable energy keeps rising, exploring novel efficient and practical photocatalysts remains a research and industrial urge. Particularly, metal organic frameworks were proven to contribute to various stages of the carbon cycle, from CO capture to its conversion. Herein, we report the photo-methanation activity of three isostructural, nickel-based metal organic frameworks incorporating additional niobium, iron, and aluminum sites, having demonstrated exceptional CO capture abilities from thin air in previous reports.

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Solid-State Nanopore Real-Time Assay for Monitoring Cas9 Endonuclease Reactivity.

ACS Nano

January 2025

Bragg Centre for Materials Research, School of Electronic and Electrical Engineering, University of Leeds, Leeds LS2 9JT, U.K.

The field of nanopore sensing is now moving beyond nucleic acid sequencing. An exciting avenue is the use of nanopore platforms for the monitoring of biochemical reactions. Biological nanopores have been used for this application, but solid-state nanopore approaches have lagged.

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Optimizing Stem Cell Expansion: The Role of Substrate Stiffness in Enhancing DPSC Quiescence and Regeneration.

J Endod

January 2025

Faculty of Dentistry, University of Toronto, 124 Edward Street, Toronto, ON, M5G 1G6, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, 1, King's College Circle, Toronto, ON M5S 1A8, Canada; Department of Dentistry, Mt. Sinai Hospital, Toronto 412-600 University Avenue, Toronto, ON M5G 1X5, Canada. Electronic address:

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Upgrading wastewater treatment plants (WWTPs) is a global practice for achieving increasingly stringent nutrient discharge objectives set by governments to accommodate population growth and reduce surface water pollution. However, associated downstream improvements in nutrient conditions are difficult to determine in nearshore regions of large aquatic ecosystems due to complex biophysical processes. We conducted a nine-year water quality study and analyzed the data using linear mixed models (LMMs) within a Before-After-Control-Impact (BACI) framework to assess effects of an upgrade to the Duffin Creek Water Pollution Control Plant (DCWPCP) on surface water nutrient conditions and proliferation of nuisance benthic algae (Cladophora glomerata) in nearshore Lake Ontario.

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Child Neurology: Severe -Related Congenital Muscular Dystrophy With Rapidly Progressive Encephalopathy Leading to Infantile Death.

Neurology

February 2025

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

Pathogenic variants in cause congenital muscular dystrophy through hypoglycosylation of alpha-dystroglycan (OMIM #615350). The established phenotypic spectrum of GMPPB-related disorders includes recurrent rhabdomyolysis, limb-girdle muscular dystrophy, neuromuscular transmission abnormalities, and congenital muscular dystrophy with variable brain and eye anomalies. We report a 9-month-old male infant with congenital muscular dystrophy, infantile spasms, and compound heterozygous pathogenic variants (c.

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Objectives: To analyze sex differences in outcomes in Tourette syndrome (TS) and Persistent Motor or Vocal tic disorders (PMVT) in the Tourette Association of America International Consortium for Genetics (TAAICG) dataset.

Methods: The relationship between sex and clinical measures was explored in 2,403 participants (N = 2,109 with TS; N = 294 with PMVT) from the TAAICG dataset using generalized estimating equation regression models, and adjusted for age and family relationships.

Results: Female (vs male) participants with TS (25.

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regulates melanocortin 4 receptor transcription and energy homeostasis.

Sci Transl Med

January 2025

Hypothalamic Research Center, Department of Internal Medicine, UT Southwestern Medical Center, Dallas TX, 75390, USA.

Disruption of hypothalamic melanocortin 4 receptors (MC4Rs) causes obesity in mice and humans. Here, we investigated the transcriptional regulation of in the hypothalamus. In mice, we show that the homeodomain transcription factor Orthopedia (OTP) is enriched in MC4R neurons in the paraventricular nucleus (PVN) of the hypothalamus and directly regulates transcription.

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Biosolids has several challenges, such as its high water content, huge volume, odour, and pathogen presence. Regulations require biosolids to be reused and disposed of safely. Polymer conditioning focuses on volume reduction, leaving pathogen and odour reduction unaddressed.

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