Publications by authors named "Beaulieu P"

Objectives: Our primary objective was to assess the association between symptoms at the time of surgery and postoperative pulmonary complications and mortality in patients with COVID-19. Our secondary objective was to compare postoperative outcomes between patients who had recovered from COVID-19 and asymptomatic patients and explore the effect of the time elapsed between infection and surgery in the former. Our hypotheses were that symptomatic patients had a higher risk of pulmonary complications, whereas patients who had recovered from the infection would exhibit outcomes similar to those of asymptomatic patients.

View Article and Find Full Text PDF
Article Synopsis
  • Multiple sclerosis (MS) is a debilitating disease affecting over 90,000 Canadians, and current treatments only offer limited relief; many patients turn to cannabis for symptom management despite the lack of solid scientific backing.
  • This clinical trial seeks to evaluate the effectiveness of various doses of cannabinoids (THC and CBD), both individually and in combination, for alleviating spasticity in MS patients, comparing results against a placebo group.
  • The study will involve 250 participants and utilize a double-blind, randomized design, measuring outcomes such as self-reported spasticity, pain, and quality of life over a period of four weeks, with potential for an additional 12-week treatment phase for those who respond well.
View Article and Find Full Text PDF

ATR is a key kinase in the DNA-damage response (DDR) that is synthetic lethal with several other DDR proteins, making it an attractive target for the treatment of genetically selected solid tumors. Herein we describe the discovery of a novel ATR inhibitor guided by a pharmacophore model to position a key hydrogen bond. Optimization was driven by potency and selectivity over the related kinase mTOR, resulting in the identification of camonsertib (RP-3500) with high potency and excellent ADME properties.

View Article and Find Full Text PDF
Article Synopsis
  • Childhood cancer survivors may face a higher risk of neurocognitive deficits, anxiety, and depression, as indicated by various genetic associations identified through whole-exome sequencing of acute lymphoblastic leukemia (ALL) survivors.
  • Notable findings include significant links between the AK8 gene and neurocognitive function, as well as associations of anxiety with genes like PTPRZ1 and MUC16, with variations seen depending on sex and risk groups.
  • The study highlights the potential of specific genes, particularly ZNF382 and EXO5, in understanding neuropsychological complications among survivors, emphasizing the need for further research to validate these associations.
View Article and Find Full Text PDF

Background: Alterations of FLT3 are among the most common driver events in acute leukaemia with important clinical implications, since it allows patient classification into prognostic groups and the possibility of personalising therapy thanks to the availability of FLT3 inhibitors. Most of the knowledge on FLT3 implications comes from the study of acute myeloid leukaemia and so far, few studies have been performed in other leukaemias.

Methods: A comprehensive genomic (DNA-seq in 267 patients) and transcriptomic (RNA-seq in 160 patients) analysis of FLT3 in 342 childhood acute lymphoblastic leukaemia (ALL) patients was performed.

View Article and Find Full Text PDF
Article Synopsis
  • * Out of 2991 enrolled patients, 3.6% experienced moderate to severe AEs, with dizziness, nausea, and vomiting being the most common symptoms reported.
  • * The findings showed no new safety concerns but highlighted that different methods of cannabis consumption and cannabinoid types resulted in varied AE profiles, indicating the need for careful consideration by healthcare providers.
View Article and Find Full Text PDF

Purpose: Emergence from anesthesia is a critical period and cough can result in adverse effects. Propofol inhibits airway reflexes and when infused it reduces cough more than inhalation anesthesia does. We evaluated the effect of a propofol bolus given at emergence on the incidence of coughing following a desflurane-based anesthesia.

View Article and Find Full Text PDF

To investigate the safety and effectiveness of medical cannabis (MC) in the real-world clinical practice setting. A 4-year prospective noncomparative registry of adult patients who initiated MC for a variety of indications. This paper reports on patients followed for up to 12 months, with interim visits at 3, 6, and 9 months after enrollment.

View Article and Find Full Text PDF

PKMYT1 is a regulator of CDK1 phosphorylation and is a compelling therapeutic target for the treatment of certain types of DNA damage response cancers due to its established synthetic lethal relationship with amplification. To date, no selective inhibitors have been reported for this kinase that would allow for investigation of the pharmacological role of PKMYT1. To address this need compound was identified as a weak PKMYT1 inhibitor.

View Article and Find Full Text PDF

Objective: Many patients with fibromyalgia (FM) report using cannabis as a strategy to improve pain. Given that pain often co-occurs with symptoms of anxiety and depression (i.e.

View Article and Find Full Text PDF
Article Synopsis
  • Cardiovascular disease is a significant cause of health issues in childhood cancer survivors, particularly those with acute lymphoblastic leukemia.
  • Researchers analyzed genetic variants from these survivors to link them to cardiovascular complications, finding notable associations with left ventricular ejection fraction and fractional shortening.
  • While rare variants showed some promise for identifying risk factors, their effects were not confirmed in a different study, indicating the need for further research to validate these genetic markers.
View Article and Find Full Text PDF

Background: A substantial number of survivors of childhood acute lymphoblastic leukemia (ALL) suffer from treatment-related late adverse effects. While multiple studies have identified the effects of chemotherapeutics and radiation therapy on musculoskeletal outcomes, few have investigated their associations with genetic factors.

Methods: Here we analyzed musculoskeletal complications in relation to common and rare genetic variants derived through whole-exome sequencing of the PETALE cohort.

View Article and Find Full Text PDF
Article Synopsis
  • - Acute Graft versus Host Disease (aGVHD) is a common complication in allogeneic hematopoietic stem cell transplantation, initiated by donor T cells attacking the recipient's tissues, particularly affecting the skin, liver, and gastrointestinal tract.
  • - The study investigated the genetic factors influencing aGVHD severity in pediatric patients through an exome-wide association study, identifying significant associations with four specific gene variants: ERC1, PLEK, NOP9, and SPRED1.
  • - Findings indicate that certain genetic variants, particularly ERC1 and PLEK, are linked to higher risks of moderate to severe aGVHD independently of other non-genetic factors, highlighting the role of genetics in transplant outcomes.
View Article and Find Full Text PDF

Background: Data on postoperative outcomes of the COVID-19 patient population is limited. We described COVID-19 patients who underwent a surgery and the pandemic impact on surgical activities.

Methods: We conducted a multicenter cohort study between March 13 and June 192,020.

View Article and Find Full Text PDF

Patients with flares of seborrhoeic dermatitis were compared with control outpatients seen during the same time-period in a case-control study, and with themselves while in remission in a case-crossover study. All patients consulted the same office-based dermatologist. During the study period, 189 cases and 189 controls were included in the case-control study, and 81 cases in the case-crossover study.

View Article and Find Full Text PDF

Background And Objectives: PECS I block was first described for surgery involving the pectoralis muscles. No randomized clinical trial has been conducted on surgeries that directly involve these muscles, such as subpectoral breast augmentation. We hypothesized that PECS I block would decrease pain in the postoperative period in this population.

View Article and Find Full Text PDF

To evaluate the association between human leukocyte antigen (HLA) alleles and native asparaginase hypersensitivity (AH) in children with acute lymphoblastic leukemia (ALL) who received Dana-Farber Cancer Institute treatment protocols. , and alleles were retrieved from available whole exome sequencing data of a subset of childhood ALL patients from Quebec ALL cohort and analyzed for an association with AH. PCR assay was developed to analyze associated alleles in the entire discovery and replication cohorts.

View Article and Find Full Text PDF
Article Synopsis
  • Sinusoidal obstruction syndrome (SOS) is a serious problem that can happen after a special medical treatment called hematopoietic stem cell transplantation (HSCT) due to damage in liver cells.
  • Researchers studied the genes of children who went through HSCT to find out more about why some get SOS, focusing on specific genetic changes called single-nucleotide polymorphisms (SNPs).
  • They found three important SNPs linked to a higher risk of SOS, which could help doctors create personalized treatments to prevent or treat this condition better in the future.
View Article and Find Full Text PDF

To evaluate top-ranking genes identified through genome-wide association studies for an association with corticosteroid-related osteonecrosis in children with acute lymphoblastic leukemia (ALL) who received Dana-Farber Cancer Institute treatment protocols. Lead SNPs from these studies, as well as other variants in the same genes, pooled from whole exome sequencing data, were analyzed for an association with osteonecrosis in childhood ALL patients from Quebec cohort. Top-ranking variants were verified in the replication patient group.

View Article and Find Full Text PDF

Background: A substantial number of survivors of childhood acute lymphoblastic leukemia suffer from treatment-related late adverse effects including neurocognitive impairment. While multiple studies have described neurocognitive outcomes in childhood acute lymphoblastic leukemia (ALL) survivors, relatively few have investigated their association with individual genetic constitution.

Methods: To further address this issue, genetic variants located in 99 genes relevant to the effects of anticancer drugs and in 360 genes implicated in nervous system function and predicted to affect protein function, were pooled from whole exome sequencing data of childhood ALL survivors (PETALE cohort) and analyzed for an association with neurocognitive complications, as well as with anxiety and depression.

View Article and Find Full Text PDF

Although 80% of childhood acute lymphoblastic leukemia (ALL) cases are cured with current treatment protocols, exposure to chemotherapeutics or radiation therapy during a vulnerable period of child development has been associated with a high frequency of late adverse effects (LAE). Previous observations suggest important skeletal muscle size, density and function deficits in ALL survivors. Given that only a fraction of all patients will suffer from this particular complication, we investigated whether it could be predicted by genetic markers.

View Article and Find Full Text PDF

Background: The progress of treatments of childhood acute lymphoblastic leukemia (ALL) has made it possible to reach a survival rate superior to 80%. However, the treatments lead to several long-term adverse effects, including cardiac toxicity. Although studies have reported associations between genetic variants and cardiorespiratory fitness, none has been performed on childhood ALL survivors.

View Article and Find Full Text PDF

To identify genetic markers associated with late treatment-related skeletal morbidity in survivors of childhood acute lymphoblastic leukemia (ALL). To this end, we measured the association between reduction in bone mineral density or vertebral fractures prevalence and variants from 1039 genes derived through whole exome sequencing in 242 childhood ALL survivors. Top-ranking variants were confirmed through genotyping, and further explored with stratified analyses and multivariable models.

View Article and Find Full Text PDF