184 results match your criteria: "Sainte-Justine University Hospital Research Center.[Affiliation]"

Objective: Conduct a systematic review and meta-analysis of randomized controlled trials (RCTs) of behavioural and psychological interventions for managing paediatric obesity.

Methods: Eligible studies, published between 1985 and 2022, included 0 to 18 year olds with outcomes reported ≥3 months post-baseline, including patient-reported outcome measures (PROMs), cardiometabolic and anthropometric outcomes, and adverse events (AEs). We pooled data using a random effects model and assessed certainty of evidence (CoE) related to minimally important difference estimates for outcomes using GRADE.

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Early activity-based therapy (E-ABT) has the potential to decrease complications and radically improve neurofunctional recovery following traumatic spinal cord injury (TSCI). Unfortunately, E-ABT after TSCI has never been attempted in humans due to practical obstacles and potential safety concerns. This study aims to report on the safety and feasibility outcomes of the Protocol for Rapid Onset of Mobilization in Patients with Traumatic SCI (PROMPT-SCI) trial: the first-ever trial of E-ABT in critically ill patients who suffered a severe TSCI.

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Article Synopsis
  • Microsurgical resection of epilepsy-related lesions carries risks of motor impairment, prompting the exploration of less invasive options like MRI-guided laser interstitial thermal therapy (MRgLITT) which has shown improved neurological outcomes.
  • A case study of a 17-year-old athlete highlighted the use of advanced tractography techniques to map the corticospinal tract (CST), aiding in presurgical planning and guiding the MRgLITT procedure.
  • The integration of CST tractography proved to be effective in enhancing the MRgLITT process, allowing for successful tumor ablation while preserving motor function, although challenges in tractography accuracy and thermal output predictability remain to be addressed.
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Purpose: To investigate the psychometric properties of the MOSE-Benin, a French-language version of the Measure of Stroke Environment (MOSE) for Sub-Saharan Africa.

Materials And Methods: The original English version of the MOSE has been translated into French following the guidelines for cross-cultural adaptation. The resulting questionnaire (MOSE-Benin) was administered to a convenience sample of participants recruited in Benin, a French-speaking country.

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Study Design: Pilot cohort study.

Objective: To develop and implement a sacral electromyographic (sEMG) technique at bedside to ascertain sparing of sacral motor activity and reflexes in patients hospitalized for acute neurological conditions.

Setting: Hôpital du Sacré-Coeur de Montréal a Canadian Level-1 university trauma center specialized in SCI care.

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Functional connectivity development in the prenatal and neonatal stages measured by functional magnetic resonance imaging: A systematic review.

Neurosci Biobehav Rev

August 2024

Neurodevelopmental Optical Imaging Laboratory (LIONLAB), Sainte-Justine University Hospital Research Center, Montreal, QC, Canada; Department of Psychology, University of Montreal, QC, Canada. Electronic address:

The prenatal and neonatal periods are two of the most important developmental stages of the human brain. It is therefore crucial to understand normal brain development and how early connections are established during these periods, in order to advance the state of knowledge on altered brain development and eventually identify early brain markers of neurodevelopmental disorders and diseases. In this systematic review (Prospero ID: CRD42024511365), we compiled resting state functional magnetic resonance imaging (fMRI) studies in healthy fetuses and neonates, in order to outline the main characteristics of typical development of the functional brain connectivity during the prenatal and neonatal periods.

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Is the Level of Consent to a National Research Registry Associated With Patient Outcomes After Traumatic Spinal Cord Injury? A Population-Based Study From the Rick Hansen Spinal Cord Injury Registry.

Am J Phys Med Rehabil

February 2025

From the Faculty of Medicine, University of Montreal, Montreal, QC, Canada (AD, J-MM-T, AR-D); Hôpital du Sacré-Cœur de Montréal, Montreal, QC, Canada (AD, J-MM-T, AR-D); Sainte-Justine University Hospital Research Center, Montréal, QC, Canada (J-MM-T); Praxis Spinal Cord Institute, Vancouver, BC, Canada (HAH, DK, JX, SH, VKN); Division of Orthopaedics, Department of Surgery, Schulich School of Medicine, Western University, London, ON, Canada (CB); École de réadaptation, Université de Montréal, Montreal, QC, Canada (DB); Centre de recherche interdisciplinaire en réadaptation, Institut universitaire sur la réadaptation en déficience physique de Montréal, Montréal, QC, Canada (DB); Department of Surgery (Neurosurgery), Dalhousie University, Halifax, NS, Canada (SC); Division of Neurosurgery, University of Saskatchewan, Royal University Hospital, Saskatoon, SK, Canada (DF); Department of Physical Medicine and Rehabilitation, University of Saskatchewan, The Rehabiliation Centre, Saskatoon, SK, Canada (AGL); Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AL, Canada (AL-S); CHU de Québec, Quebec, QC, Canada (JP); The Ottawa Hospital Rehabilitation Centre, Ottawa, ON, Canada (VS); Division of Physical Medicine and Rehabilitation, University of British Columbia, Vancouver, BC, Canada (AT); and The Ottawa Hospital, Ottawa Hospital Research Institute, University of Ottawa, Ottawa, ON, Canada (ET).

Article Synopsis
  • The study assessed how consenting to the Rick Hansen Spinal Cord Injury Registry (RHSCIR) affected patients' outcomes after spinal cord injuries, including hospital stay length, mortality, complications, and discharge location.
  • A retrospective analysis was done using data from 2014-2019, comparing three groups: those who provided full consent, those who declined follow-up interviews but accepted some data collection, and those who didn't consent at all.
  • Results showed that participants who declined full consent experienced longer hospital stays, more complications like pneumonia and pressure injuries, and were less likely to be discharged home compared to those who consented fully.
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Purpose: To investigate the association between the neighborhood built environment and trajectories of body mass index (BMI) in youth.

Methods: Data were collected in a prospective study of 1293 adolescents in Montreal. Built environment variables were obtained from public databases for road networks, land use, and the Canadian Census.

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Background: The objectives of this study were to (a) assess the associations between early behavioral problems and intergenerational income mobility (i.e., the degree to which income status is transmitted from one generation to the next), (b) verify whether these associations are moderated by child sex, and (c) explore indirect effects of early behavioral problems on income mobility via high school graduation.

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VirusPredictor: XGBoost-based software to predict virus-related sequences in human data.

Bioinformatics

March 2024

Department of Microbiology and Molecular Genetics, University of Vermont, Burlington, Vermont 05405, United States.

Motivation: Discovering disease causative pathogens, particularly viruses without reference genomes, poses a technical challenge as they are often unidentifiable through sequence alignment. Machine learning prediction of patient high-throughput sequences unmappable to human and pathogen genomes may reveal sequences originating from uncharacterized viruses. Currently, there is a lack of software specifically designed for accurately predicting such viral sequences in human data.

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Language brain responses and neurodevelopmental outcome in preschoolers with congenital heart disease: A fNIRS study.

Neuropsychologia

April 2024

Department of Psychology, Université de Montréal, Montréal, QC, Canada; Research Center, Sainte-Justine University Hospital Research Center, Montréal, QC, Canada. Electronic address:

Article Synopsis
  • * The study aimed to examine brain activity related to language processing in 3-year-old children with CHD using functional near-infrared spectroscopy (fNIRS), comparing their results with healthy controls.
  • * Findings showed that children with CHD had significantly lower verbal and language acquisition scores and demonstrated reduced brain activation in areas crucial for language processing, correlating with poorer neurodevelopmental outcomes.
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Introduction: Early childhood malnutrition affects 200+ million children under 5 years of age worldwide and is associated with persistent cognitive, behavioral and psychiatric impairments in adulthood. However, very few studies have investigated the long-term effects of childhood protein-energy malnutrition (PEM) on brain function using a functional hemodynamic brain imaging technique.

Objective And Methods: This study aims to investigate functional brain network alterations using near infrared spectroscopy (NIRS) in adults, aged 45-51 years, from the Barbados Nutrition Study (BNS) who suffered from a single episode of malnutrition restricted to their first year of life (n = 26) and controls (n = 29).

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Objective: Emerging adulthood (18-25 years) is associated with peak prevalence of cannabis use. Although population-based longitudinal studies have found little change in cannabis use among emerging adults during COVID-19, research examining changes among vulnerable subgroups is lacking. The present study examined the association between emotion dysregulation at 23 years and change in cannabis use frequency and problem cannabis use among a large sample of emerging adults, from before to during the COVID-19 pandemic.

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Stat5 opposes the transcription factor Tox and rewires exhausted CD8 T cells toward durable effector-like states during chronic antigen exposure.

Immunity

December 2023

Department of Systems Pharmacology and Translational Therapeutics, University of Pennsylvania, Philadelphia, PA, USA; Institute for Immunology and Immune Health, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA; Parker Institute for Cancer Immunotherapy at University of Pennsylvania, Philadelphia, PA, USA. Electronic address:

Rewiring exhausted CD8 T (Tex) cells toward functional states remains a therapeutic challenge. Tex cells are epigenetically programmed by the transcription factor Tox. However, epigenetic remodeling occurs as Tex cells transition from progenitor (Tex) to intermediate (Tex) and terminal (Tex) subsets, suggesting development flexibility.

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Recommendations for physical activity (PA) typically focus on frequency, intensity, duration, and type, but timing (chrono-exercise) is also important. The objective of this study is to describe when children are active on school and weekend days and explore PA timing across sex and body mass index (BMI) categories. 359 children (53% male), aged 9.

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Lack of HCAR1, the lactate GPCR, signaling promotes autistic-like behavior.

Cell Commun Signal

November 2023

Program in Molecular Biology, Faculty of Medicine, University of Montreal, Montreal, QC, H3C 3J7, Canada.

The GPCR HCAR1 is known to be the sole receptor for lactate, which modulates its metabolic effects. Despite its significant role in many processes, mice deficient in HCAR1 exhibit no visible phenotype and are healthy and fertile. We performed transcriptomic analysis on HCAR1 deficient cells, in combination with lactate, to explore pathophysiologically altered processes.

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Cohort profile update: The Canadian Maternal-Infant Research on Environmental Chemicals Child Development study (MIREC-CD PLUS).

Paediatr Perinat Epidemiol

November 2023

Department of Obstetrics and Gynecology, Centre de Recherche du CHUS, University of Sherbrooke, Sherbrooke, Québec, Canada.

Background: The pan-Canadian Maternal-Infant Research on Environmental Chemicals (MIREC) study was established to determine whether maternal environmental chemical exposures were associated with adverse pregnancy outcomes in 2001 pregnant women.

Objectives: The MIREC-Child Development (CD PLUS) study followed this cohort with the goal of assessing the potential effects of prenatal exposures on anthropometry and neurodevelopment in early childhood.

Population: MIREC families with children between the ages of 15 months and 5 years who had agreed to be contacted for future research (n = 1459) were invited to participate in MIREC-CD PLUS which combines data collected from an online Maternal Self-Administered Questionnaire with biomonitoring and neurodevelopment data collected from two in-person visits.

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Neuroblastoma, the most common type of pediatric extracranial solid tumor, causes 10% of childhood cancer deaths. Despite intensive multimodal treatment, the outcomes of high-risk neuroblastoma remain poor. We urgently need to develop new therapies with safe long-term toxicity profiles for rapid testing in clinical trials.

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Heparan sulfate (HS), an abundant component of the apical cell surface and basement membrane, belongs to the glycosaminoglycan family of carbohydrates covalently linked to proteins called heparan sulfate proteoglycans. After endocytosis, HS is degraded in the lysosome by several enzymes, including heparan-alpha-glucosaminide N-acetyltransferase (HGSNAT), and in its absence causes Mucopolysaccharidosis III type C (Sanfilippo type C). Since endocytosis occurs in epithelial cells of the testis and epididymis, we examined the morphological effects of Hgsnat inactivation in these organs.

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Article Synopsis
  • Pediatric Brain Tumor Survivors (PBTS) face challenges in social, academic, and employment settings after treatment, often not utilizing available support services.
  • A study with 68 participants, including survivors and parents, aimed to confirm and prioritize solutions to help PBTS reintegrate into daily activities post-treatment.
  • Key priorities identified include the need for health professionals to provide evaluation, counseling, and ongoing follow-up, as well as addressing the challenges of implementing recommendations in educational and workplace environments.
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Relationship between 4-month functional brain network topology and 24-month neurodevelopmental outcome in children with congenital heart disease.

Eur J Paediatr Neurol

November 2023

Department of Psychology, Université de Montréal, Montreal, QC, Canada; Neurodevelopmental Optical Imaging Lab (LIONlab), Sainte-Justine University Hospital Research Center, Montreal, QC, Canada. Electronic address:

Survivors of complex forms of congenital heart disease (CHD)∗ are at high risk of neurodevelopmental disabilities. Neuroimaging studies have pointed to brain anomalies and immature networks in infants with CHD, yet less is known about their functional network topology and associations with neurodevelopment. To characterize the functional network topology in 4-month-old infants with repaired CHD, we compared graph theory metrics measured using resting-state functional near-infrared spectroscopy (rs-fNIRS) between infants with CHD (n = 22) and healthy controls (n = 30).

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A descriptive analysis of first trimester urinary concentrations of 14 bisphenol analogues in the MIREC Canadian pregnancy cohort.

Int J Hyg Environ Health

August 2023

Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, Canada. Electronic address:

Background: Concern over the health effects of BPA, particularly for the developing fetus, has led to an increasing use of bisphenol analogues in industrial and consumer products, which may be as hormonally active as BPA. Biomonitoring data for many bisphenol analogues, especially in pregnant populations, are limited.

Methods: We measured concentrations of 14 bisphenol analogues in 1 trimester urine samples (n = 1851) from the Maternal-Infant Research on Environmental Chemicals (MIREC) Canadian pregnancy cohort (2008-2011).

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Article Synopsis
  • Early activity-based therapy (ABT) initiated within 48 hours post-trauma could prevent complications and improve outcomes for patients with spinal cord injuries, although this has not been previously tested in humans due to safety concerns.
  • The PROMPT-SCI trial enrolled 15 adults with severe spinal cord injuries and involved 30-minute motor-assisted in-bed cycling sessions starting soon after early spinal surgery, assessing safety through vital sign monitoring.
  • Results showed 66.6% of participants successfully completed a full session within 48 hours without adverse neurological effects, indicating that early ABT is both safe and feasible for these patients.
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Article Synopsis
  • The study investigates whether former preterm birth and extremely low birth weight (ELBW) are linked to prolonged QT intervals in adolescents and young adults compared to term-born individuals.
  • A comparison of QT intervals from pooled data showed no significant difference between the two groups, with a mean QT difference of only 1 ms, indicating that former preterm individuals don't have longer QT intervals than controls.
  • The findings suggest that healthcare providers can apply the same pharmacovigilance standards for prescribing QTc-prolonging drugs to former preterm and ELBW patients as they do for the general population.
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