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Visualizing hemodynamics: innovative graphical displays and imaging techniques in anesthesia and critical care.
Crit Care
January 2025
División de Terapia Intensiva, Hospital Juan A. Fernández, Buenos Aires, Argentina.
The advancements in cardiovascular imaging over the past two decades have been significant. The miniaturization of ultrasound devices has greatly contributed to their widespread adoption in operating rooms and intensive care units. The integration of AI-enabled tools has further transformed the field by simplifying echocardiographic evaluations and enhancing the reproducibility of hemodynamic measurements, even for less experienced operators.
View Article and Find Full Text PDFBasic Science and Pathogenesis.
Alzheimers Dement
December 2024
Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.
Background: Angiotensin-converting enzyme (ACE) is a validated risk locus for developing late-onset Alzheimer's disease (LOAD). ACE1 controls blood pressure through the renin-angiotensin system (RAS), but it is also present and acts locally in the brain. Hypertension is associated with an increased risk for developing AD, and people taking select RAS-targeting therapeutics have reduced incidence of AD.
View Article and Find Full Text PDFBasic Science and Pathogenesis.
Alzheimers Dement
December 2024
University of Kentucky, Lexington, KY, USA.
Background: Impaired interstitial fluid drainage in the brain is indicated by the presence of perivascular β-amyloid (Aβ) deposits and is attributed to alterations in contractility and relaxation of vascular smooth muscle cells (SMCs). The brain microvasculature in Alzheimer disease (AD) accumulates amyloid-forming amylin secreted from the pancreas. Here, we tested the hypothesis that cerebrovascular amylin deposits perturbs cerebral Aβ efflux by impairing cerebral vasodilation.
View Article and Find Full Text PDFClinical Manifestations.
Alzheimers Dement
December 2024
Ontario Shores Centre for Mental Health Sciences, Whitby, ON, Canada.
Background: Previous literature has highlighted that excessive alcohol use (EAU) is directly linked with permanent neurological damage. Studies have also highlighted gradual improvements in heart rate variability (HRV) after cessation of alcohol use. Moreover, chronic alcohol consumption has also been correlated with reduced HRV and an increase in skin conductance (SC) among healthy adults, leading to a combined decline in cognitive performance.
View Article and Find Full Text PDFSnakebite envenomation-associated acute kidney injury: a South-Asian perspective.
Trans R Soc Trop Med Hyg
January 2025
Department of Medicine, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry 605006, India.
Snakebite is a neglected public health problem in tropical countries. Snakebite envenomation-associated acute kidney injury (SBE-AKI) is a major complication accounting for significant morbidity and mortality. The pathogenesis of SBE-AKI may be multifactorial, including prerenal AKI secondary to hemodynamic alterations, intrinsic renal injury, immune-related mechanisms, venom-induced consumptive coagulopathy and capillary leak syndrome.
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