1,157,027 results match your criteria: "Canada; The Ottawa Hospital Civic Campus[Affiliation]"

Objective: The objective of this scoping review is to develop a list of items for potential inclusion in the Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) reporting guidelines for network meta-analysis (NMA), scoping reviews (ScRs), and rapid reviews (RRs).

Introduction: The PRISMA extensions for NMA and ScRs were published in 2015 and 2018. However, since then, their methodologies and innovations, including automation, have evolved.

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Background: Understanding the dietary patterns of populations is crucial in addressing chronic health conditions that are influenced by diet and lifestyle. We aimed to identify the dietary patterns among adult Caucasian Canadians and examine their associations with socioeconomic and sociodemographic factors and chronic health conditions.

Methodology: We used two comprehensive national nutrition surveys: Canadian Community Health Survey (CCHS)2015 and CCHS Cycle 2.

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Sarcopenia is an age-related muscle disorder that increases risks of adverse clinical outcomes, but its treatments are still limited. Gut microbiota is potentially associated with sarcopenia, and its role is still unclear. To investigate the role of gut microbiota in sarcopenia, we first compared gut microbiota and metabolites composition in old participants with or without sarcopenia.

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KIF9 Ameliorates Neuropathology and Cognitive Dysfunction by Promoting Macroautophagy in a Mouse Model of Alzheimer's Disease.

Aging Cell

January 2025

Growth, Development, and Mental Health of Children and Adolescence Center, Pediatric Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, Chongqing Key Laboratory of Child Neurodevelopment and Cognitive Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China.

Alzheimer's disease (AD) is a prevalent neurodegenerative disorder affecting the elderly. The imbalance of protein production and degradation processes leads to the accumulation of misfolded and abnormally aggregated amyloid-beta (Aβ) in the extracellular space and forms senile plaques, which constitute one of the most critical pathological hallmarks of AD. KIF9, a member of the kinesin protein superfamily, mediates the anterograde transport of intracellular cargo along microtubules.

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Animal models investigating sevoflurane or compound A and renal function serve as the initial basis for concerns regarding renal injury following sevoflurane anesthesia and subsequent recommendations of minimum fresh gas flow, but this evidence basis has not been critically appraised. Primary literature searches were performed in MEDLINE OVID, PubMed, EMBASE, the Cochrane Library), the Cochrane Central Register of Controlled Trials, the International HTA Database, CINAHL, and Web of Science to identify randomized controlled trials and quasi-experimental studies in animals utilizing sevoflurane or compound A. The primary outcomes included renal function as determined by blood urea nitrogen, serum creatinine, creatinine clearance, and urine volume.

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Alpha and Theta Oscillations Associated With Behavioral Phenotypes of Pain-Attention Interaction.

Brain Behav

January 2025

Division of Brain, Imaging and Behavior, Krembil Brain Institute, Krembil Research Institute, University Health Network, Toronto, Ontario, Canada.

Purpose: Pain is inherently salient and so draws our attention in addition to impacting performance on attention-demanding tasks. Individual variability in pain-attention interactions can be assessed by two kinds of behavioral phenotypes that quantify how individuals prioritize pain versus attentional needs. The intrinsic attention to pain (IAP) measure quantifies the degree to which a person attends to pain (high-IAP) or mind-wanders away from pain (low-IAP).

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Background: Physical activity supports the health and well-being of individuals with physical disabilities. Despite the significance of engaging in physical activity, barriers faced by individuals with disabilities, such as limited access to adapted facilities and lack of transportation, can restrict their participation. Community organizations play a role in addressing these challenges, but virtual reality (VR) also offers a way to diversify adapted activities.

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Background: Anti-aging facial procedures with nonenergy and nonablative energy devices are increasingly popular among patients with skin of color (SOC). Algorithms have addressed the measures to reduce the side effects related to aesthetic procedures, but few focus on SOC patients and periprocedural integrating skincare.

Methods: Eight dermatologists from Brazil, Canada, South Africa, Mexico, and the USA participated in a meeting and an online follow-up to develop an algorithm for periprocedural skincare for nonenergy and nonablative energy-based facial aesthetic procedures in patients with SOC.

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Song: You need ATP (to the tune of "You belong with me").

Biochem Mol Biol Educ

January 2025

Department of Biochemistry, Medical Sciences Building, Western University, London, Ontario, Canada.

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Objective: Parkinson's and Huntington's diseases are characterized by progressive neuronal loss. Previous studies using human postmortem tissues have shown the impact of neurodegenerative disorders on adult neurogenesis. The extent to which adult neural stem cells are activated in the subventricular zone and whether therapeutic treatments such as deep brain stimulation promote adult neurogenesis remains unclear.

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Introduction: Vestibular migraine (VM), particularly its chronic variant, poses a diagnostic challenge. Patients suffering from VM may not have the characteristic headaches associated with the dizziness. In these cases, a marker for migraine pathology in general could help appropriately diagnose certain types of dizziness as migrainous despite these patients not meeting current diagnostic criteria for VM.

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We here simulate in the gas phase the population dynamics of guanine/cytosine (GC) and cytosine/guanine (CG) stacked dimers in B-DNA and A-DNA arrangement, following excitation in the lowest-energy band, and considering the four lowest-energy ππ* bright excited states, the three lowest-energy π* states, and the G → C charge-transfer (CT) state. We resort to a generalized Linear Vibronic Coupling (LVC) model parametrized with time-dependent density functional theory (TD-DFT) computations, exploiting a fragment-based diabatization and we run nonadiabatic quantum dynamical simulations with the multilayer version of the Multiconfigurational Time-Dependent Hartree (ML-MCTDH) approach. G → C CT results in a major decay process for GC in B-DNA but less in A-DNA arrangement, where also the population transfer to the lowest-energy excited state localized on C is an important intermonomer process.

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Background: Storage of packed red blood cells (RBCs) for transfusion leads to biochemical and morphological changes, increasing hemolysis risk. Urate levels in blood bags at donation contribute to the molecular heterogeneity and hemolytic propensity of stored RBCs. However, studies to date have been underpowered to investigate at scale the contribution of donor demographics and genetics to the heterogeneity in urate levels across donations.

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Introduction: Treatment-resistant depression (TRD) is related to disproportionate unemployment and productivity burden in the USA. The current study describes real-world mental health (MH)-related disability days and costs of patients with TRD initiated on esketamine nasal spray or conventional therapies in the USA.

Methods: Adults with TRD were selected from Merative™ MarketScan Commercial database (from January 2016 to January 2023) and classified into four cohorts (esketamine, ECT [electroconvulsive therapy], TMS [transcranial magnetic stimulation], and SGA [second-generation antipsychotics] augmentation) based on therapy initiated (index date) on/after 5 March 2019 (esketamine approval date for TRD).

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Prior studies examined Acidocin 4356's antibacterial and antivirulence effects against Pseudomonas aeruginosa, including cell membrane penetration abilities. Building on prior research, an in-vitro co-culture of human cells was established to evaluate the selectivity of Acidocin (ACD) by concurrently cultivating human cells and bacterial pathogens. This study evaluated the antibacterial effectiveness of ACD against Acinetobacter baumannii and Pseudomonas aeruginosa.

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Background: To align with climate goals, greenhouse gas (GHG) emissions from agriculture must be reduced significantly. Cultivated peatlands are an important source of such emissions. One proposed measure is to convert arable fields on peatlands to grassland, as the Intergovernmental Panel on Climate Change (IPCC) default emission factors (EF) for organic soils are lower from grasslands.

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Serum β-secretase 1 (sBACE1) activity in subjective cognitive decline: an exploratory study.

Geroscience

January 2025

Department of Translational Medicine and for Romagna, Università of Ferrara, Via Luigi Borsari 46, 44121, Ferrara, Italy.

β-Secretase-1 (BACE1) plays a key role in the regulation of cerebral amyloid-β homeostasis, being involved in amyloidogenic and, as recently found, amyloidolytic pathways. Growing evidence indicates that increased serum BACE1 (sBACE1) activity might represent an early biomarker for Alzheimer's disease. Here, we tested the hypothesis that an increase in sBACE1 activity may already occur in individuals with subjective cognitive decline (SCD).

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Glucagon-like peptides agonists promote maturation of intestinal organoids derived from neonates with necrotizing enterocolitis.

Pediatr Surg Int

January 2025

Department of General and Thoracic Surgery, The Hospital for Sick Children, University of Toronto, 1526-555 University Ave, Toronto, ON, M5G 1X8, Canada.

Purpose: Necrotizing enterocolitis (NEC) majorly affects premature infants, causing not only necrosis and inflammation but also feeding intolerance and gastrointestinal dysmotility, hinting at gut hormone secretion impairment. Particularly critical is the gestation period before 26 weeks where intestinal hormonal activity is partially developed, rendering preterm neonates highly susceptible to NEC. Emerging evidence suggests a role of gut hormones, especially glucagon-like peptides (GLP) in ileum development.

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Several jurisdictions have implemented legalization policies for non-medical cannabis, mainly towards improving public health and reducing illegal cannabis markets and crime. As some legalization initiatives are approaching maturity, conducting policy impact assessments has become timely. Emerging data, however, suggest rather mixed pictures for key outcomes and indicators.

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Intratumoral heterogeneity (ITH) is spatial, phenotypic, or molecular differences within the same tumor that have important implications for accurate tumor classification and assessment of predictive biomarkers. The Canadian Ovarian Experimental Unified Resource (COEUR) has created a cohort of 437 FFPE tissue specimens from 108 tubo-ovarian high-grade serous carcinoma (HGSC) patients to quantify ITH across the anatomical sites and between primary and recurrence. We quantified the ITH of six clinically used immunohistochemical diagnostic and prognostic biomarkers (WT1, p53, p16, PR, CD8, and Ki67).

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Background: Reovirus (RV) is an oncolytic virus with natural tropism for cancer cells. We previously showed that RV administration in multiple myeloma (MM) patients was safe, but disease control associated with viral replication in the cancer cells was not observed. The combination with proteasome inhibitors (PIs) has shown to enhance RV therapeutic activity, but the mechanisms of action have not been fully elucidated.

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Objective: To understand the impact of both frailty and chronologic age on outcomes of weaning from invasive mechanical ventilation (MV).

Methods: The study population consisted of patients enrolled in the 'WorldwidE. AssessmeNt of Separation of pAtients From ventilatory assistancE (WEAN SAFE) study.

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Sex differences in ventricular-vascular interactions associated with aerobic capacity.

Echo Res Pract

January 2025

School of Human Kinetics, Trinity Western University, CANIL Building, Rm. 115 22500 University Drive, Langley, BC, V2Y 1Y1, Canada.

Background: Aerobic capacity measured by maximal oxygen uptake (VOmax) is related to functional capacity and is a strong independent predictor of all-cause and disease-specific mortality. Sex-specific cardiac and vascular responses to endurance training have been observed, however, their relative contributions to VOmax are less understood. The purpose of this study was to evaluate sex-specific ventricular-vascular interactions associated with VOmax in healthy males and females.

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Background: Achilles tendon ruptures are the most common lower extremity tendinous rupture. While there has been extensive research into the management of mid-substance Achilles tendon ruptures, there is a paucity of literature on the management of myotendinous Achilles tendon ruptures.

Methods: The aim of this systematic review is to compile all available literature on the treatment of myotendinous Achilles tendon tears.

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