1,111 results match your criteria: "and Centre de recherche[Affiliation]"

Introduction: People with schizophrenia spectrum disorders present with language dysfunctions, yet we know little about their use of reference markers (indefinite markers, definite markers, pronouns or names), a fundamental aspect of efficient speech production.

Methods: Twenty-five (25) participants with a recent-onset schizophrenia spectrum disorder (SZ) and 25 healthy controls (HC) completed two referential communication tasks. The tasks involved presenting to an interaction partner a series of movie characters (character identification task) and movie scenes composed of six images (narration task).

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Introduction: Recently, efforts to eliminate malaria have shifted focus from symptomatic cases alone to include asymptomatic carriers, who are now recognized as significant contributors to the disease's transmission and control. This study examines the relationship between asymptomatic malaria infection and hemoglobin levels in Benin.

Methods: A cohort in Benin was enrolled and categorized into three age groups (under 5 years, 5-15 years, and over 15 years) for follow-up from August to November 2021.

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DPYD genotype should be extended to rare variants: report on two cases of phenotype / genotype discrepancy.

Cancer Chemother Pharmacol

January 2025

Service de Génomique des Tumeurs et Pharmacologie, Hôpital Saint-Louis, Assistance Publique Hôpitaux de Paris, Paris, France.

The enzyme dihydropyrimidine dehydrogenase (DPD) is the primary catabolic pathway of fluoropyrimidines including 5 fluorouracil (5FU) and capecitabine. Cases of lethal toxicity have been reported in cancer patients with complete DPD deficiency receiving standard dose of 5FU or capecitabine. DPD is encoded by the pharmacogene DPYD in which more than 200 variants have been identified.

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Cognitive-behavioural therapy for insomnia mechanism of action: Exploring the homeostatic K-complex involvement.

J Sleep Res

December 2024

Vita-Salute San Raffaele University, Department of Clinical Neurosciences, Neurology-Sleep Disorders Center, IRCCS San Raffaele Scientific Institute, Milan, Italy.

Article Synopsis
  • This study investigates how K-complexes (KC), a specific type of brainwave, relate to the effectiveness of Cognitive-Behavioral Therapy for Insomnia (CBT-I), which is the main treatment for chronic insomnia.
  • Researchers conducted a multicenter study with 98 insomnia patients undergoing a 6-8 week CBT-I program, evaluating their sleep using polysomnography and an insomnia severity index before and after treatment.
  • The results indicate that KC density, particularly its change after treatment, can predict how well patients respond to CBT-I and significantly correlates with improved sleep pressure, suggesting KC is an important biomarker for insomnia treatment.
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The introduction of 4,5-dihydroazuleno[2,1,8-ija]azulene as a central core between two 1,4-dithiafulvene (DTF) units provides a novel class of extended tetrathiafulvalene (TTF) electron donors. Herein we present the synthesis of such compounds with the azulenoazulene further expanded by annulation to benzene, naphthalene, or thiophene rings. Moreover, unsymmetrical donor-acceptor chromophores with one DTF and one carbonyl at the central core are presented.

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Multimodal critical discourse analysis is a dynamic approach to qualitative data analysis that expands critical discourse analysis to include multiple communicative modes-such as images, graphics, video, and sound/music-into the semiotic analysis of ideology and power relations within contemporary forms of communication. We reflect on the potential of multimodal critical discourse analysis to be combined with arts-based health research as an analytic method to deconstruct discourses that shape the health and well-being of marginalized communities. Specifically, we frame this potential within our research about men's body image based a project using cellphilming and the deconstruction of cis-heteronormative and related ideologies.

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A molecular glue for PRKN/parkin.

Autophagy

December 2024

Department of Biochemistry and Centre de Recherche en Biologie Structurale, McGill University, Montreal, QC, Canada.

Parkinson disease (PD) is a neurodegenerative disease characterized by the loss of dopaminergic neurons in the , primarily due to mitochondria dysfunction. PRKN (parkin RBR E3 ubiquitin protein ligase) and PINK1 (PTEN induced kinase 1) are linked to early-onset cases of PD and essential for the clearance of damaged mitochondria via selective mitochondrial autophagy (mitophagy). In a recent publication, we detail how a small molecule can activate PRKN mutants that are unable to be phosphorylated, restoring mitophagy in cellular assays.

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Introduction: Membranous nephropathy can lead to end-stage kidney disease, for which kidney transplantation is the preferred therapy. However, the disease often relapses, which can impact allograft survival.

Methods: We conducted a prospective multicenter study in France involving 72 patients with membranous nephropathy who were awaiting and then underwent kidney transplantation.

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Biodegradable cardiovascular stents made of thin, low atomic number metals (e.g. Zn, Mg, Fe) are now approved for clinical use.

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Introduction: Asymptomatic malaria infection is now recognized as a potential threat to malaria control. However, its prevalence and its dynamics are poorly documented especially in a perennial context of high seasonal transmission. A longitudinal study was conducted in southern Benin to investigate the dynamics of asymptomatic malaria infection and to identify factors influencing it.

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Regulation of NHE3 subcellular localization in epididymal principal cells: pH, cyclic adenosine 3,5 monophosphate (cAMP), and adenosine signaling.

Andrology

December 2024

Faculty of Medicine, Department of Obstetrics, Gynecology and Reproduction, Centre Hospitalier Universitaire de Québec - Research Centre, and Centre de Recherche en Reproduction, Développement et Santé Intergénérationnelle - Université Laval, Québec, QC, Canada.

Introduction: The epididymis creates an optimal acidic luminal environment for sperm maturation and storage. In epididymal principal cells (PCs), proton secretion is activated by the accumulation of the sodium-proton exchanger type 3, NHE3 (SLC9A3), in apical stereocilia. PCs also secrete ATP, which is hydrolyzed into adenosine by ectonucleotidases.

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Structures and mechanism of condensation in nonribosomal peptide synthesis.

Nature

December 2024

Department of Biochemistry and Centre de recherche en biologie structurale, McGill University, Montréal, QC, Canada.

Article Synopsis
  • * A critical aspect of NRPS function is the formation of amide bonds between amino acids, a process that has not been fully understood due to its complex nature and the mobile structure of the enzymes involved.
  • * Recent research produced a modified NRPS protein, revealing detailed structures that suggest a concerted reaction mechanism, where a key histidine residue stabilizes the reaction instead of acting as a typical general base.
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Background: Current clinical trials indicate that repetitive transcranial magnetic stimulation (rTMS) is effective in reducing drug-resistant neuropathic pain (NP). However, there is a lack of studies evaluating the long-term feasibility and clinical efficacy of rTMS in large patient cohorts in real-world conditions.

Methods: In this retrospective cohort study, we analysed 12 years of clinical data to assess the long-term analgesic effects of 20 Hz rTMS over the primary motor cortex in patients with NP.

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Background: While clinical overlap between Kawasaki disease (KD) and multisystem inflammatory syndrome in children (MIS-C) has been evident, information regarding those presenting with shock has been limited. We sought to determine associations with shock within and between diagnosis groups.

Methods: The International KD Registry enrolled contemporaneous patients with either KD or MIS-C from 39 sites in 7 countries from January 1, 2020, to January 1, 2023.

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Article Synopsis
  • Paediatric hypertrophic cardiomyopathy (HCM) is linked to a higher risk of sudden cardiac death, leading to restrictions on physical activity; this inactivity, combined with rising youth obesity, may negatively impact cardiovascular health in these patients.* -
  • The study involved 56 Canadian HCM patients aged 10-19 and evaluated their cardiovascular health using standardized questionnaires; results showed that many had poor health scores similar to those of the general Canadian youth population.* -
  • Findings indicate a significant number of HCM patients have intermediate or poor cardiovascular health, underscoring the need for targeted interventions to encourage healthier lifestyles and improve overall cardiovascular wellbeing.*
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Article Synopsis
  • The review examines how changing sleep timing impacts blood sugar control, pointing out mixed evidence from previous studies.
  • It included 14 studies involving 159 adults with either normal or increased weight, showing varying quality and significant effects on glycaemic outcomes.
  • The study concludes that delaying sleep can negatively affect blood sugar levels, emphasizing the need for more controlled research on sleep's impact, along with related lifestyle factors.
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Disclaimer: In an effort to expedite the publication of articles, AJHP is posting manuscripts online as soon as possible after acceptance. Accepted manuscripts have been peer-reviewed and copyedited, but are posted online before technical formatting and author proofing. These manuscripts are not the final version of record and will be replaced with the final article (formatted per AJHP style and proofed by the authors) at a later time.

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Introduction: Our objective was to identify published, peer-reviewed, epidemiological studies that estimated associations between the risk of developing or dying from malignant breast cancer and past exposure to selected organic solvents with reactive metabolites, to delineate the methods used and to synthesize the results.

Content: We undertook a structured review of case-control and cohort studies used to investigate breast cancer risk and exposure to selected organic solvents that produce reactive metabolites in the body. We used SCOPUS, MEDLINE (Ovid) and Web of Science databases from 1966 to December 31, 2023 to identify epidemiological studies that estimated associations between the risk of developing or dying from malignant breast cancer and past exposure to selected organic solvents with reactive metabolites and organic solvents combined as a group.

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Article Synopsis
  • The paper details the creation of a best-evidence model of care (MoC) and program logic (PL) for supported accommodation (SA) aimed at individuals released from prison.
  • It highlights that the MoC was based on comprehensive research, client interviews, and feedback from service providers, ensuring it meets the needs of those in SA.
  • The finalized MoC includes five core components that can be adapted by services, while the PL outlines client needs, the rationale for the effectiveness of these components, and the metrics for measuring success.
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SCIseg: Automatic Segmentation of Intramedullary Lesions in Spinal Cord Injury on T2-weighted MRI Scans.

Radiol Artif Intell

January 2025

From the NeuroPoly Laboratory, Institute of Biomedical Engineering, Polytechnique Montréal, 2500 Chemin de Polytechnique, Montréal, Québec, Canada H3T 1J4 (E.N.K., J.V., J.C.A.); Mila-Quebec AI Institute, Montréal, Québec, Canada (E.N.K., J.V., J.C.A.); Department of Neurosurgery and Department of Neurology, Faculty of Medicine and Dentistry, Palacký University Olomouc, Olomouc, Czechia (J.V.); Department of Physical Medicine and Rehabilitation Physical Therapy Program, University of Colorado School of Medicine, Aurora, Colo (A.C.S.); Spinal Cord Injury Center, Balgrist University Hospital, University of Zürich, Zürich, Switzerland (D.P., S.S.S., L.F., P.F.); Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, Calif (D.P., K.A.W.); Department of Neurophysics, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany (P.F.); and Functional Neuroimaging Unit, CRIUGM and Centre de Recherche du CHU Sainte-Justine, Université de Montréal, Montréal, Québec, Canada (J.C.A.).

Article Synopsis
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Efficient cyclization reactions play a pivotal role in the synthesis of extended polycyclic aromatic hydrocarbons (PAHs) and graphene nanoribbons. Although efficient reactions have been developed, a simple yet versatile method that is compatible with most functional groups is still lacking. Herein, we report the use of phenylsulfonates as a photolabile group to generate aryl radicals that undergo a radical cyclization reaction to produce triphenylene derivatives.

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Article Synopsis
  • * Of the women surveyed, 63% responded, revealing a postpartum depression prevalence of 16.4% when using a specific scoring scale (EPDS score of 13 or higher), which rose to 23.1% with a slightly lower cutoff (score of 11 or higher).
  • * Key risk factors identified included younger maternal age and being born in a non-European country, highlighting the need for tailored support and interventions for at-risk populations after cesarean delivery.
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Objective: The lack of current Canadian practice guidelines for the management of insomnia poses a challenge for healthcare providers (HCP) in selecting the appropriate treatment options. This study aimed to establish expert consensus recommendations for the management of chronic insomnia in Canada.

Composition Of The Committee: Sixteen multidisciplinary experts in sleep medicine and insomnia across Canada developed consensus recommendations based on their knowledge of the literature and their practical experience.

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Early administration of appropriate antibiotics has been shown to be among the most effective interventions to reduce mortality in septic patients. We evaluated the attainment of efficacy and safety targets at 24 h associated with the use of intensive beta-lactam therapy in patients admitted to the intensive care unit for sepsis. This was a prospective study with patients who received beta-lactams for sepsis or septic shock between February 2023 and September 2023.

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