1,156,092 results match your criteria: "Canada; Schulich School of Medicine and Dentistry[Affiliation]"

Correction: Hystereses in flow-induced compression of a poroelastic hydrogel.

Soft Matter

January 2025

Department of Chemical and Biological Engineering, University of British Columbia, Vancouver, BC V6T 1Z3, Canada.

Correction for 'Hystereses in flow-induced compression of a poroelastic hydrogel' by Zelai Xu , 2024, , 6940-6951.

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Rationale: The complexation with dissolved organic matter (DOM) is a pivotal factor influencing transformations, transport, and bioavailability of mercury (Hg) in aquatic environments. However, identifying these complexes poses a significant challenge because of their low concentrations and the presence of coexisting ions.

Methods: In this study, mercury-dissolved organic matter (Hg-DOM) complexes were isolated through solid-phase extraction (SPE) from Hg-humic acid suspensions, and complexes were putatively identified using ultrahigh resolution Fourier transform ion cyclotron resonance mass spectrometry (FTICR-MS).

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Social anxiety and depression exacerbate in early adolescence. Maladaptive self-referential processing confers risk for both conditions and can be assessed by the Self-Referent Encoding Task (SRET). Our cross-sectional findings indicated that the SRET-elicited anterior late positive potential (LPP) was uniquely associated with social anxiety symptoms, whereas behavioral SRET scores were uniquely associated with depressive symptoms.

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Large-scale studies indicate a strong relationship between the gut microbiome, type 2 diabetes mellitus (T2DM), and atherosclerotic cardiovascular disease (ASCVD). Here, a higher abundance of the type III secretion system (T3SS) virulence factors of Enterobacteriaceae/Escherichia-Shigella in patients with T2DM-related-ASCVD, which correlates with their atherosclerotic stenosis is reported. Overexpression of T3SS via Citrobacter rodentium (CR) infection in Apoe-/- T2DM mice exacerbated atherosclerotic lesion formation and increased gut permeability.

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Phosphorus (P) loss from soils can contribute significantly toward P enrichment in water bodies, impairing water quality. Application of soil amendments is a viable strategy to decrease soluble P in surface soils. Since soluble P is reduced through different mechanisms that are amendment-specific, blended amendments could be a better approach than single amendment applications; however, very little information is available on blended amendment effects in reducing P loss from soils.

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Objective: This study aims to evaluate extrinsic tooth stain removal and whitening efficacy of two experimental dentifrices containing (i) 5% sodium tripolyphosphate (STP)/1% micronized alumina or (ii) 5% STP/1% micronized alumina with abrasive silica (ED2) compared to a regular fluoride dentifrice (RFD) following 8 weeks of use.

Materials And Methods: This was a single-center, randomized, controlled, blind, three-arm, stratified, parallel-group study. Eligible participants underwent clinical assessment of stain on the facial/lingual surfaces of maxillary and mandibular teeth using the modified Lobene stain index (MLSI), and shade of the facial surfaces of the central and lateral maxillary incisors using the VITA Bleachedguide 3D-Master (VITA) shade guide.

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Background: Effective hemorrhage protocols prioritize immediate hemostatic resuscitation to manage hemorrhagic shock. Prehospital resuscitation using blood products, such as whole blood or alternatively dried plasma in its absence, has the potential to improve outcomes in hemorrhagic shock patients. However, integrating blood products into prehospital care poses substantial logistical challenges due to issues with storage, transport, and administration in field environments.

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The C type of dicotyledonous plants exhibit a higher density of reticulate veins than the C type, with a nearly 1:1 ratio of mesophyll cells (MCs) to bundle sheath cells (BSCs). To understand how this C-type cell pattern is formed, we identified two SCARECROW (SCR) genes in C Flaveria bidentis, FbSCR1 and FbSCR2, that fully or partially complement the endodermal cell layer-defective phenotype of Arabidopsis scr mutant. We then created FbSCRs promoter β-glucuronidase reporter (GUS) lines of F.

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Surface-Enhanced Raman Spectroscopy for Nitrite Detection.

J Agric Food Chem

January 2025

Department of Chemistry, Cape Breton University, Sydney, Nova Scotia B1P 6L2, Canada.

Nitrite is an important chemical intermediate in the nitrogen cycle and is ubiquitously present in environmental and biological systems as a metabolite or additive in the agricultural and food industries. However, nitrite can also be toxic in excessive concentrations. As such, the development of quick, sensitive, and portable assays for its measurement is desirable.

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Introduction: Urgent, tailored and equitable action is needed to address the alarming rise in syphilis rates in Canada. In the last decade, the rates of infectious syphilis have increased by 345% in Ontario, Canada. Underserved populations-people who use drugs, un(der)housed individuals and those living in rural and remote areas-face unique social and healthcare challenges that increase their vulnerability to syphilis infections and hinder their access to timely diagnosis and treatment.

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Objectives: To describe the impact of the COVID-19 pandemic on hypertension diagnosis and management in UK primary care.

Design: Population-based cohort study.

Setting: Over 2000 general practices across the UK contributing to the Clinical Practice Research Datalink.

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Objectives: To describe the population that meets the criteria for major depressive disorder (MDD) in British Columbia (BC), compare patterns of healthcare utilisation between those with MDD who are and are not prescribed pharmacotherapy, and assess these relationships in models that control for potential confounding variables.

Design: We used a population cross-sectional study design among a cohort of individuals living with MDD and examined the relationship between pharmacotherapy and healthcare utilisation between 2019 and 2020 using linked billing and administrative data.

Setting: This study identified individuals with MDD using a validated case definition of International Classification of Diseases (ICD) codes in BC, Canada.

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Introduction: Acute kidney injury (AKI) is common in hospitalised adults and children and is associated with significantly increased mortality and worse short-term and long-term outcomes. This systematic review and meta-analysis will evaluate the cost associated with AKI.

Methods And Analysis: This health economic analysis will be performed using systematic search of databases, including MEDLINE, EMBASE, CINAHL, Scopus and Cochrane Library from 2009 to the present (search completed on 27 May 2024).

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Introduction: Virtual reality (VR) technology is increasingly used by researchers and healthcare professionals as a therapeutic intervention to improve the quality of life of persons living with dementia (PLwD). However, most VR interventions to date have mainly been explored in long-term or community care settings, with fewer being explored at home. Setting is important, given that the majority of PLwD live at home and are cared for by their family care partners.

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Excitation-inhibition (E/I) imbalance is theorized as a key mechanism in the pathophysiology of epilepsy, with ample research focusing on elucidating its cellular manifestations. However, few studies investigate E/I imbalance at the macroscale, whole-brain level, and its microcircuit-level mechanisms and clinical significance remain incompletely understood. Here, the Hurst exponent, an index of the E/I ratio, is computed from resting-state fMRI time series, and microcircuit parameters are simulated using biophysical models.

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Long-term blood glucose control via glucose-activated transcriptional regulation of insulin analogue in type 1 diabetes mice.

Diabetes Obes Metab

January 2025

National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu, Sichuan, People's Republic of China.

Aim: To achieve glucose-activated transcriptional regulation of insulin analogue in skeletal muscle of T1D mice, thereby controlling blood glucose levels and preventing or mitigating diabetes-related complications.

Materials And Methods: We developed the GANIT (Glucose-Activated NFAT-regulated INSA-F Transcription) system, an innovative platform building upon the previously established intramuscular plasmid DNA (pDNA) delivery and expression system. In the GANIT system, skeletal muscle cells are genetically engineered to endogenously produce the insulin analogue INSA-F (Insulin Aspart with Furin cleavage sites).

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After intracranial surgery, sympathetic overdrive and increased blood catecholamine levels can contribute to postoperative hypertension, a significant clinical problem. The objective of this review was to summarize, quantify, and assess the epidemiological perspective of post-craniotomy hypertension and its association with adverse outcomes. This PROSPERO-registered systematic review was conducted following PRISMA guidelines.

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The tolerance and degradation characteristics of a marine oil-degrading strain Acinetobacter sp. Y9 were investigated in the presence of diesel oil and simulated radioactive nuclides (Mn, Co, Ni, Sr, Cs) at varying concentrations, as well as exposure to γ-ray radiation (Co-60). The maximum tolerable concentrations for Coand Ni were found to be 5 mg/l and 25 mg/l, respectively, while the tolerable concentrations for Mn, Sr, and Cs exceeded 400 mg/l, 1000 mg/l, and 1000 mg/l, respectively.

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Background: Many species are exhibiting range shifts associated with anthropogenic change. For migratory species, colonisation of new areas can require novel migratory programmes that facilitate navigation between independently-shifting seasonal ranges. Therefore, in some cases range-shifts may be limited by the capacity for novel migratory programmes to be transferred between generations, which can be genetically and socially mediated.

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Background: The recent global pandemic posed extraordinary challenges for healthcare systems. Frontline healthcare workers required focused, immediate, practical, evidence-based instruction on optimal patient care modalities as knowledge evolved around disease management.

Objective: This course was designed to provide knowledge to protect healthcare workers; combat disease spread; and improve patient outcomes.

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Background: The integration of procedure-specific risks into preoperative patient assessment and optimization are crucial aspects of perioperative care. However, data on internists' knowledge of surgical and anesthetic principles and practices are limited. We thus sought to identify internists' knowledge gaps in terms of surgical- and anesthetic-specific risk factors and characteristics.

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Introduction from the editors.

Allergy Asthma Clin Immunol

January 2025

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

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Finding the right dose: a scoping review examining facilitation as an implementation strategy for evidence-based stroke care.

Implement Sci

January 2025

Nursing Research Institute, St Vincent's Health Network Sydney, St Vincent's Hospital Melbourne & Australian Catholic University, Level 5, deLacy Building, St. Vincent's Hospital, 390 Victoria Street, Darlinghurst, 2010, New South Wales, Australia.

Background: Despite evidence supporting interventions that improve outcomes for patients with stroke, their implementation remains suboptimal. Facilitation can support implementation of research into clinical practice by helping people develop the strategies to implement change. However, variability in the amount (dose) and type of facilitation activities/facilitator roles that make up the facilitation strategies (content), may affect the effectiveness of facilitation.

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Background: Diabetic myocardial disorder (DbMD, evidenced by abnormal echocardiography or cardiac biomarkers) is a form of stage B heart failure (SBHF) at high risk for progression to overt HF. SBHF is defined by abnormal LV morphology and function and/or abnormal cardiac biomarker concentrations.

Objective: To compare the evolution of four DbMD groups based on biomarkers alone, systolic and diastolic dysfunction alone, or their combination.

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