20,644 results match your criteria: "BC Children's & BC Women's Hospitals[Affiliation]"

E3 ubiquitin ligase ITCH-mediated proteasomal degradation of WBP2 sensitizes breast cancer cells to chemotherapy through restraining AMOTL2/c-JUN axis.

Biochem Pharmacol

December 2024

Department of Otolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen 361005, China; Xiamen Key Laboratory of Otolaryngology Head and Neck Surgery, Xiamen 361005, Fujian, China. Electronic address:

Our study had demonstrated that WW domain-binding protein 2 (WBP2) conferred chemoresistance in breast cancer (BC). However, the underlying mechanism remains unclear. Herein, a decreased expression of itchy E3 ubiquitin protein ligase (ITCH) was observed in drug-resistant BC tissues which negatively regulated the expression of WBP2.

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Experiences of complex trauma and adversity, especially for children, are ongoing global crises necessitating adaptation. Bioadaptability to adversity and its health consequences emphasizes the dynamism of adaptation to trauma and the potential for research to inform intervention strategies. Epigenetic variability, particularly DNA methylation, associates with chronic adversity while allowing for resilience and adaptability.

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Association between maternal schizophrenia and risk of serious asthma exacerbations in childhood.

Schizophr Res

December 2024

Department of Psychiatry, Faculty of Medicine, University of Toronto, Toronto, ON, Canada; ICES (formerly Institute for Clinical Evaluative Sciences), Toronto, ON, Canada; Institute of Health Policy, Management & Evaluation, University of Toronto, Toronto, ON, Canada; Women's College Hospital and Research Institute, Toronto, ON, Canada. Electronic address:

Background And Hypothesis: While maternal schizophrenia is linked to chronic childhood medical conditions, little is known about the risk of acute asthma exacerbations among children whose mothers have schizophrenia. This population-based study used health data for all of Ontario, Canada to evaluate whether having a mother with schizophrenia was associated with increased risk of asthma exacerbations.

Study Design: The study cohort included 385,989 children diagnosed with asthma from age 2 years onward, followed from the time of their asthma diagnosis up to a maximum of age 19 years.

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Article Synopsis
  • The study investigates how reallocating time among physical activity, sedentary behavior, and sleep affects obesity indicators like BMI and waist circumference across various age groups.
  • Researchers analyzed data from 9,818 participants using isotemporal substitution models to understand the implications of these behavior changes.
  • Results indicated that even small shifts of 10-30 minutes can significantly impact obesity, with reallocating moderate-to-vigorous physical activity (MVPA) to lighter activities or sedentary behavior having particularly detrimental effects.
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International Multicenter Cohort Study on Beta-Blocker-Free Treatment Strategies for Catecholaminergic Polymorphic Ventricular Tachycardia Patients.

JACC Clin Electrophysiol

November 2024

Department of Molecular Pharmacology & Experimental Therapeutics (Windland Smith Rice Sudden Death Genomics Laboratory), Mayo Clinic, Rochester, Minnesota, USA; Department of Pediatric and Adolescent Medicine (Division of Pediatric Cardiology), Mayo Clinic, Rochester, Minnesota, USA; Department of Cardiovascular Medicine (Division of Heart Rhythm Services, Windland Smith Rice Genetic Heart Rhythm Clinic), Mayo Clinic, Rochester, Minnesota, USA. Electronic address:

Background: Catecholaminergic polymorphic ventricular tachycardia (CPVT) is a rare, potentially life-threatening genetic heart disease. Nonselective beta-blockers (BBs) are highly effective in reducing CPVT-triggered arrhythmic events. However, some patients suffer from unacceptable BB side effects and might require strategies without a BB.

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RORA-neurodevelopmental disorder: a unique triad of developmental disability, cerebellar anomalies, and myoclonic seizures.

Genet Med

December 2024

Genetics Department, Hospices Civils de Lyon, Lyon, France; Neuromyogene Institute, Pathology and Genetics of neuron and muscle, CNRS UMR 5261 INSERM U1315, University of Lyon - Université Claude Bernard Lyon 1, Lyon, France. Electronic address:

Article Synopsis
  • RORA is a gene linked to the development and function of the cerebellum, and this study explores the largest group of individuals with RORA-related neurodevelopmental disorders (RORA-NDD).
  • The study involved 40 participants with various pathogenic variants of RORA, revealing a range of clinical features including developmental and intellectual disabilities, as well as cerebellar symptoms that can vary in onset and severity.
  • Findings indicate that certain missense variants are associated with more severe cerebellar issues, and common elements of RORA-NDD include developmental disabilities, cerebellar symptoms, and different types of myoclonic epilepsy.
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Background: Immunisation in pregnancy against pertussis can reduce severe disease in infancy. There are few data on the safety and immunogenicity of vaccines given to pregnant women living with HIV and their infants. We aimed to describe the safety and immunogenicity of a tetanus-diphtheria-acellular pertussis (TdaP) vaccine containing genetically detoxified pertussis toxin given to pregnant women living with HIV and the effect of the vaccine on infant whole-cell pertussis vaccine responses.

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Loss of hepatocyte Usp53 protects mice from a form of xenobiotic-induced liver injury.

Biochim Biophys Acta Mol Basis Dis

December 2024

The Center for Pediatric Liver Diseases, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China; Shanghai Key Laboratory of Birth Defect, Shanghai 201102, China. Electronic address:

Background: Ubiquitin-specific protease 53 (USP53) deficiency is associated with familial intrahepatic cholestasis in which serum gamma-glutamyl transferase (GGT) activity is relatively low. However, how USP53 deficiency contributes to cholestasis is obscure. No animal model has been reported.

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Development of two machine learning models to predict conversion from primary HER2-0 breast cancer to HER2-low metastases: a proof-of-concept study.

ESMO Open

December 2024

Oncology Unit 2, Istituto Oncologico Veneto (IOV) - IRCCS, Padova, Italy; Department of Surgery, Oncology and Gastroenterology, University of Padova, Padova, Italy.

Background: HER2-low expression has gained clinical relevance in breast cancer (BC) due to the availability of anti-HER2 antibody-drug conjugates for patients with HER2-low metastatic BC. The well-reported instability of HER2-low status during disease evolution highlights the need to identify patients with HER2-0 primary BC who may develop a HER2-low phenotype at relapse. In response to the urgency of maximizing treatment access, we utilized artificial intelligence to predict this occurrence.

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Background: Qualitative experience data can inform health care providers how to best support families during pediatric postoperative recovery. Patient experience data can also provide actionable information to guide health care quality improvement; positive feedback can confirm the efficacy of current practices and systems, while negative comments can identify areas for improvement.

Objective: This study aimed to understand families' perspectives regarding their children's surgical recovery using qualitative patient experience data (free-text comments) from a prospective cohort study conducted within a larger study developing a postoperative-outcome risk stratification model.

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Plasmapheresis for extracorporeal membrane oxygenation (ECMO)-induced hemolysis in infants.

J Extra Corpor Technol

December 2024

Division of Pediatric Nephrology, Joe DiMaggio Children's Hospital, 1131 N35th Ave, Hollywood, FL 33021, USA - Charles E. Schmidt College of Medicine at Florida Atlantic University, 777 Glades Rd BC-71, Boca Raton, FL 33431, USA.

Background: Intravascular hemolysis is a known complication of extracorporeal membrane oxygenation (ECMO). Characterized by elevated plasma-free hemoglobin (PFH), intravascular hemolysis is associated with cytotoxic effects leading to renal replacement therapy (RRT), longer ECMO runs, and mortality. Therapeutic plasma exchange (TPE) in tandem with ECMO was described as a therapy for various pathologic conditions, but there are no Extracorporeal Life Support Organization (ELSO) guidelines for the treatment of ECMO-induced hemolysis.

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Group B Streptococcus is a bacterium that colonizes in approximately 20% of pregnant women and can be vertically transmitted to newborns, leading to maternal-neonatal adverse outcomes, such as chorioamnionitis, neonatal sepsis, and pneumonia. However, there is currently no agreement on the optimal induction method for this specific population. This study aims to evaluate the safety of a single balloon catheter (BC) in comparison to dinoprostone for labor induction in term pregnant women with group B Streptococcus colonization.

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The lipid kinase phosphatidylinositol 4 kinase III α (PI4KIIIα/PI4KA) is a master regulator of the lipid composition and asymmetry of the plasma membrane. PI4KA exists primarily in a heterotrimeric complex with its regulatory proteins TTC7 and FAM126. Fundamental to PI4KA activity is its targeted recruitment to the plasma membrane by the lipidated proteins EFR3A and EFR3B.

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In accordance with ancient Egyptian beliefs, the preservation of the body after death was an important prerequisite for the continued existence of the deceased in the afterlife. This involved application of various physical interventions and magical rituals to the corpse. Computed tomography (CT), as the gold-standard technology in the field of paleoradiology, enables deeper insights into details of artificial body preservation.

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Background: Health literacy assessment is key to better meeting family needs and developing informed strategies to promote positive health outcomes for children. The objective of this study was to describe the health literacy of caregivers who use Canadian pediatric emergency departments and relate it to demographic and visit-specific variables.

Methods: This study utilized a descriptive, cross-sectional survey design with medical record review.

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We are conditioned not to see some of the most potent facts; one of these repressed facts is the common assumption that goodness is the same as obedience - you are good if you 'do what you're told' - and bad if you are disobedient. To illustrate how this invisibility of social conditioning works, some very famous stories are helpful, both for how this conditioning works and for how it is resisted, because, simply put, obedience is not the same as being good.

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Introduction to immunology and immune disorders.

Allergy Asthma Clin Immunol

December 2024

Department of Pediatrics, Division of Allergy, Dalhousie University, IWK Health Centre, Halifax, NS, Canada.

The body has a collection of physical barriers to prevent infection, but once these are overcome, we rely on our immune systems to protect us against a wide variety of infections. The complex mechanisms through which this is achieved are grouped into two lines of defense called the "innate" and "adaptive" immune systems. The innate immune system provides a rapid and tailored response to infection or injury often associated with inflammation.

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Primary prevention of food allergy: beyond early introduction.

Allergy Asthma Clin Immunol

December 2024

Department of Pediatrics, Division of Allergy, Dalhousie University, IWK Health Centre, Halifax, NS, Canada.

Food allergy typically begins early in life and persists as a lifelong condition. Delayed introduction of allergenic foods followed by years of hesitancy to introduce these foods early may have contributed to the increase in food allergy prevalence in recent decades. Most infant feeding guidelines focus on the importance of early introduction of allergenic foods in infants at around age 4-6 months.

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Eosinophilic esophagitis.

Allergy Asthma Clin Immunol

December 2024

Division of Allergy, Department of Pediatrics, Dalhousie University, IWK Health Centre, Halifax, NS, Canada.

Eosinophilic esophagitis (EoE) is an atopic condition of the esophagus that has become increasingly recognized. Diagnosis of the disorder is dependent on the patient's clinical manifestations and must be confirmed by histologic findings on esophageal mucosal biopsies. The epidemiology, pathophysiology, diagnosis, treatment, and prognosis of EoE are discussed in this review.

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Background: Cannabis use during pregnancy has been increasing and is associated with adverse neonatal outcomes, such as low birth weight (LBW) and preterm birth (PTB). It remains largely unknown whether the association between cannabis use in pregnancy and increased risk of adverse neonatal outcomes is impacted by the frequency of cannabis use and whether thresholds exist below which risk is not significantly increased. The objective of this systematic review is to assess whether the association between cannabis use during pregnancy and the risk of adverse neonatal outcomes is dependent on the frequency of use and whether risk thresholds exist.

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Menstrual Health Literacy, Equity and Research Priorities.

J Obstet Gynaecol Can

December 2024

Women's Health Research Institute, Vancouver, BC; Centre for Menstrual Cycle and Ovulation Research, University of British Columbia, Vancouver, BC; Division of Endocrinology and Metabolism, Department of Medicine, University of British Columbia, Vancouver, BC; School of Population and Public Health, University of British Columbia, Vancouver, BC.

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Connaissances, équité et priorités de recherche en santé menstruelle.

J Obstet Gynaecol Can

December 2024

Women's Health Research Institute, Vancouver, BC; Centre for Menstrual Cycle and Ovulation Research, University of British Columbia, Vancouver, BC; Division of Endocrinology and Metabolism, Department of Medicine, University of British Columbia, Vancouver, BC; School of Population and Public Health, University of British Columbia, Vancouver, BC.

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Lung Function Recovery from Pulmonary Exacerbations Treated with Oral Antibiotics in Primary Ciliary Dyskinesia.

Ann Am Thorac Soc

December 2024

The Hospital for Sick Children, Division of Respiratory Medicine, Translational Medicine, Research Institute, Toronto, Ontario, Canada.

Rationale: Patients with Primary Ciliary Dyskinesia (PCD) experience acute pulmonary exacerbations (PEx). In Cystic Fibrosis (CF), PEx treated with oral antibiotics (oPEx) were found to be related to short and long-term lung function deficits, however the impact oPEx on lung function in patients with PCD has not yet been assessed.

Objective: To assess the impact of oPEx on lung function recovery in PCD and determine the factors associated with poorer response.

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This study employs single-cell RNA sequencing (scRNA-seq) and assay for transposase-accessible chromatin with high-throughput sequencing technologies (scATAC-seq) to perform joint sequencing on cells at various time points during the induction of adipose-derived stem cells (ADSCs) into astrocytes. We applied bioinformatics approaches to investigate the differentiation trajectories of ADSCs during their induced differentiation into astrocytes. Pseudotemporal analysis was used to infer differentiation trajectories.

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Crohn's disease (CD) is the chronic inflammation of the terminal ileum and colon triggered by a dysregulated immune response to bacteria, but insights into specific molecular perturbations at the critical bacteria-epithelium interface are limited. Here we report that the membrane mucin MUC17 protected small intestinal enterocytes against commensal and pathogenic bacteria. In non-inflamed CD ileum, reduced MUC17 levels and a compromised glycocalyx barrier allowed recurrent bacterial contact with enterocytes.

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