Publications by authors named "Lucy Couture"

Article Synopsis
  • Alzheimer's disease (AD) is more prevalent in women than in men, with factors beyond longevity, like metabolic changes, influencing this increased risk.
  • A study conducted metabolomic profiling of blood samples from male and female patients with mild cognitive impairment (MCI), revealing significant metabolic differences related to sex, particularly in lipid and peptide energy metabolism pathways.
  • The research identified specific metabolites unique to each sex, such as higher levels of 1-palmitoleoyl glycerol in females, suggesting these could be potential biomarkers to enhance our understanding of MCI and AD prevention strategies.
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Alzheimer's disease (AD) affects more women than men. Although women live longer than men, it is not longevity alone, but other factors, including metabolic changes, that contribute to the higher risk of AD in women. Metabolic pathways have been implicated in AD progression, but studies to date examined targeted pathways, leaving many metabolites unmeasured.

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COVID-19 is caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and is associated with hypercoagulability and increased incidence of thrombotic events. In this study, we investigated the levels of neutrophil extracellular trap biomarkers and von Willebrand factor to assess if these could predict the occurrence of a thrombotic event in COVID-19 patients. We enrolled 202 patients hospitalized with symptomatic COVID-19 infection.

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Background: Stroke is a major cause of morbidity and mortality, and its incidence increases with age. While acute therapies for stroke are currently limited to intravenous thrombolytics and endovascular thrombectomy, recent studies have implicated an important role for the gut microbiome in post-stroke neuroinflammation. After stroke, several immuno-regulatory pathways, including the aryl hydrocarbon receptor (AHR) pathway, become activated.

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Coronavirus disease (COVID-19), caused by SARS-CoV-2, leads to symptoms ranging from asymptomatic disease to death. Although males are more susceptible to severe symptoms and higher mortality due to COVID-19, patient sex has rarely been examined. Sex-associated metabolic changes may implicate novel biomarkers and therapeutic targets to treat COVID-19.

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