During early development, zebrafish larvae exhibit stereotypical behaviors, which rapidly become more complex. Thus, generating mutant transgenic lines that maintain transparency throughout their larval stage and that can be used to record brain activity has offered strategic opportunities to investigate the underlying neural correlates of behavior establishment. However, few studies have documented the sensorimotor profile of these lines during larval development.
View Article and Find Full Text PDFBackground & Aims: Bepirovirsen, an antisense oligonucleotide, induces sustained reductions in hepatitis B surface antigen (HBsAg) and HBV DNA to below the lower limit of quantification (
Methods: In this phase IIb, multicentre, open-label trial, participants on stable nucleos(t)ide analogue (NA) therapy were randomised 1:1 to bepirovirsen 300 mg once weekly (plus loading dose on Days 4 and 11) for 24 (Arm 1) or 12 (Arm 2) weeks followed by Peg-IFN 180 μg once weekly for up to 24 weeks, with up to 36 weeks follow-up.
Many health organizations recommend that mothers avoid cannabis during pregnancy and breastfeeding because they are concerned about exposing infants to Δ-9-tetrahydrocannabinol (THC), the psychoactive substance in cannabis. Yet, data collected by the U.S.
View Article and Find Full Text PDFObjectives: We report the use of IV dalbavancin in Canadian patients using data captured by the national CLEAR registry.
Methods: The CLEAR registry uses the web-based data management program, REDCap™ (online survey https://rcsurvey.radyfhs.
Background: There is a common agreement that Alzheimers disease (AD) is inherently complex; otherwise, a general disagreement remains on its etiological underpinning, with numerous alternative hypotheses having been proposed.
Objective: To perform a scoping review of original manuscripts describing hypotheses and theories of AD published in the past decades.
Results: We reviewed 131 original manuscripts that fulfilled our inclusion criteria out of more than 13,807 references extracted from open databases.
Introduction: Disparities in venous thromboembolism (VTE) incidence and prophylaxis have been observed across racial groups. This study investigates the relationship between race, injury type, and the timing of VTE prophylaxis in severe trauma patients, both with and without isolated traumatic brain injuries. The primary goal is to analyze how these factors interact and their potential impact on clinical outcomes.
View Article and Find Full Text PDFBackgroundAntiretroviral therapy (ART) halts HIV-1 replication, decreasing viremia to below the detection limit of clinical assays. However, some individuals experience persistent nonsuppressible viremia (NSV) originating from CD4+ T cell clones carrying infectious proviruses. Defective proviruses represent over 90% of all proviruses persisting during ART and can express viral genes, but whether they can cause NSV and complicate ART management is unknown.
View Article and Find Full Text PDFBackground: In the United States, healthcare organizations utilize helicopter emergency medical services (HEMS), which are well-established and integral to trauma and emergency medical transport. HEMS expedites critical resources to trauma patients at the initial scene of the accident, which typically falls outside of the effective service area of ground transportation.
Methods: This is a single-center study of trauma registry data, inclusive years July 1, 2016, to September 26, 2021.
Background: Monkeypox, a viral zoonotic disease, is causing a global outbreak outside of endemic areas.
Objective: To characterize the outbreak of monkeypox in Montréal, the first large outbreak in North America.
Design: Epidemiologic and laboratory surveillance data and a phylogenomic analysis were used to describe and place the outbreak in a global context.
In this viewpoint, we briefly review the status of antiretroviral therapy (ART), its unmet needs, and the role that broadly neutralizing antibodies (bNAbs) might have in the near future for the treatment of human immunodeficiency virus (HIV). We summarize advances in the development of bNAbs as antiretroviral therapy, the results of main clinical trials of bNAbs for HIV treatment and prevention, and its role in cure trials. The limitations of broadly neutralizing antibodies are the current need for primary resistance testing, the still unclear number of antibodies that must be combined, the lack of penetration in anatomical reservoirs, and the role they might play in cure studies.
View Article and Find Full Text PDFZoos and natural history museums are both collections-based institutions with important missions in biodiversity research and education. Animals in zoos are a repository and living record of the world's biodiversity, whereas natural history museums are a permanent historical record of snapshots of biodiversity in time. Surprisingly, despite significant overlap in institutional missions, formal partnerships between these institution types are infrequent.
View Article and Find Full Text PDFMetabolic syndrome (MetS) prevalence continues to grow and represents a serious public health issue worldwide. This multifactorial condition carries the risk of hastening the development of type 2 diabetes (T2D), non-alcoholic fatty liver disease (NAFLD), and cardiovascular diseases (CVD). Another troubling aspect of MetS is the requirement of poly-pharmacological therapy not devoid of side effects.
View Article and Find Full Text PDFBackground: People in prison are at increased risk of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. We examined the seroprevalence of SARS-CoV-2 and associated carceral risk factors among incarcerated adult men in Quebec, Canada.
Methods: We conducted a cross-sectional seroprevalence study in 2021 across 3 provincial prisons, representing 45% of Quebec's incarcerated male provincial population.
Introduction: Alzheimer's disease (AD) cerebrospinal fluid (CSF) biomarkers are promising tools to help identify the underlying pathology of neurocognitive disorders. In this manuscript, we report our experience with AD CSF biomarkers in 262 consecutive patients in a tertiary care memory clinic.
Methods: We retrospectively reviewed 262 consecutive patients who underwent lumbar puncture (LP) and CSF measurement of AD biomarkers (Aβ1-42, total tau or t-tau, and p-tau181).
Purpose: To evaluate the functional and anatomic outcomes, as well as cost-effectiveness, of the timing of conversion to intravitreal aflibercept (IVA) in patients with treatment-resistant diabetic macular edema (DME).
Methods: Thirty consecutive eyes (25 patients) were identified that were treated with ≥3 intravitreal bevacizumab (IVB) and/or ranibizumab (IVR) injections prior to treatment with ≥3 IVA injections. Eyes that received ≤6 IVB and/or IVR injections (early-switch) were compared to those that received ≥7 injections (late-switch) prior to conversion to IVA.
Objective: We aimed to validate the (DCQ; www.dcqtest.org), a new cognitive screening tool for atypical degenerative syndromes, in the oldest old.
View Article and Find Full Text PDFIntroduction: It is well known that some patients with Alz-heimer's disease (AD) have atypical, nonamnestic presentations. While logopenic aphasia and posterior cortical atrophy are well-characterized atypical variants of AD, the behavioral/dysexecutive variant remains a controversial entity, lacking consensus regarding its distinctive clinical and imaging features.
Methods: We present a case series of 8 patients with biomarker confirmation of AD (cerebrospinal fluid [CSF] analysis or amyloid positron emission tomography [PET]) and a progressive frontal syndrome, defined as prominent behavioral and/or executive deficits at initial presentation.
Background/aims: The logopenic variant of primary progressive aphasia (lvPPA) is characterized by impaired word-finding and sentence repetition with phonologic errors but spared motor speech and grammar and semantic knowledge. Although its language deficits have been well studied, the full spectrum of cognitive changes in the lvPPA remains to be defined. We aimed to explore the neurocognitive profile of the lvPPA using a newly developed cognitive screening tool for atypical dementias, the Dépistage Cognitif de Québec (DCQ).
View Article and Find Full Text PDFThe distributions of migratory species in the ocean span local, national and international jurisdictions. Across these ecologically interconnected regions, migratory marine species interact with anthropogenic stressors throughout their lives. Migratory connectivity, the geographical linking of individuals and populations throughout their migratory cycles, influences how spatial and temporal dynamics of stressors affect migratory animals and scale up to influence population abundance, distribution and species persistence.
View Article and Find Full Text PDFBackground: To assess the post-implementation impact of the Canadian Type 1 Wildland Fire Fighter (WFF) Fitness Test Circuit (WFX-FIT), a retrospective descriptive analysis of anonymized aggregate data collected between 2012-2016 was conducted.
Objectives: The objectives were to examine the pass rates of Type 1 WFF in each fire jurisdiction and on the standard for exchanging Type 1 WFF between agencies, the interagency exchange standard, by age group and sex and to propose what other information could be of value in assessing the effectiveness of implementing a physical employment standard.
Methods: Frequencies and pass rate percentages were compared by sex and age groups (<40 years, ≥40 years).
Behavioral variant frontotemporal dementia (bvFTD) shares a constellation of clinical features with primary psychiatric disorders. The discovery of new FTD-related genetic mutations has brought attention to this overlap between bvFTD and psychotic disorders. The case reported here raises the question of whether C9orf72 repeat expansion may be involved in neuropsychiatric syndromes beyond the spectrum of neurodegenerative disease.
View Article and Find Full Text PDFIntroduction: State efforts to identify subpopulations at higher risk for inadequate diabetes maintenance are sometimes hampered by small sample size. We provide a model of a cross-state collaboration that might provide the foundation for identifying political and economic forces underlying inter- and intra-state variability in chronic disease care.
Methods: We collected Behavioral Risk Factor Surveillance System data directly from 5 of 6 New England states and ran multivariate logistic regressions on 5 exposures: race/ethnicity, federal poverty level (FPL) bracket, insurance status (yes or no), insurance type (public or private), and state of residence.
Introduction: Early recognition of atypical dementia remains challenging partly because of lack of cognitive screening instruments precisely tailored for this purpose.
Methods: We assessed the validity and reliability of the Dépistage Cognitif de Québec (DCQ; www.dcqtest.