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A carnitine transporter at the blood-brain barrier modulates sleep via glial lipid metabolism in .
Proc Natl Acad Sci U S A
January 2025
Department of Cell Biology, Emory University, Atlanta, GA 30322.
To regulate brain function, peripheral compounds must traverse the blood-brain barrier (BBB), an interface between the brain and the circulatory system. To determine whether specific transport mechanisms are relevant for sleep, we conducted a BBB-specific inducible RNAi knockdown (iKD) screen for genes affecting sleep in . We observed reduced sleep with knockdown of solute carrier , a carnitine transporter, as determined by isotope flux.
View Article and Find Full Text PDFParametric Search for Optimal Channel Shape for Swirling Blood Flow in the Heart and Main Vessels.
Dokl Biochem Biophys
January 2025
Bakulev National Medical Research Center for Cardiovascular Surgery, Moscow, Russia.
The study presents a numerical parametric investigation of flow structures in channels with a longitudinal-radial profile zR = Const and a spherical dome at the base. The goal of the study was to examine the flow structures in these channels depending on the exponent N of the profile and the height of the dome, to determine the conditions that provide optimal centripetal swirling flow, analogous to blood flow in the heart chambers and major vessels. The investigation was conducted using a comparative analysis of flow structures in channel configurations zR = Const, carried out in two stages.
View Article and Find Full Text PDFA Narrative Review of Cardiometabolic Profiles among U.S. Adults: Temporal Trends and Implications.
Curr Cardiol Rep
January 2025
John Ochsner Heart and Vascular Institute, Ochsner Clinical School University of Queensland School of Medicine, New Orleans, LA, USA.
Purpose Of Review: To provide a narrative overview of trends and disparities in the cardiometabolic profiles of U.S. adults by synthesizing findings from nationally representative studies conducted between 1999 and 2020.
View Article and Find Full Text PDFRNA-Seq transcriptomic landscape profiling of spontaneously hypertensive rats in youth treated with a ARNI versus ARB.
Naunyn Schmiedebergs Arch Pharmacol
January 2025
Department of Cardiology, The Second Affiliated Hospital of Chongqing Medical University, No. 74, Linjiang Road, Chongqing, 400010, China.
Angiotensin receptor-neprilysin inhibitor (ARNI) and angiotensin II receptor blockers (ARB) are antihypertension medications that improve cardiac remodeling and protect the heart. However, at the early stage of hypertension, it is still unclear how these two drugs affect the transcriptomic profile of multiple organs in hypertensive rats and the transcriptomic differences between them. We performed RNA sequencing to define the RNA expressing profiles of the eight tissues (atrium, ventricle, aorta, kidney, brain, lung, white fat, and brown fat) in spontaneously hypertensive rats (SHRs) and SHRs treated with ARNI or ARB.
View Article and Find Full Text PDFWorsening of Heart Failure in Outpatients With Transthyretin Amyloidosis and Cardiomyopathy in the APOLLO-B Trial.
J Am Coll Cardiol
December 2024
Cardiovascular Division, Brigham and Women's Hospital, Boston, Massachusetts, USA. Electronic address:
Background: Outpatient worsening heart failure (HF), defined by initiation or intensification of diuretics, is adversely prognostic for patients with either reduced or preserved ejection fraction.
Objectives: This study sought to investigate the prognostic value of outpatient worsening HF in transthyretin amyloidosis with cardiomyopathy and the effect of patisiran treatment.
Methods: Post hoc analyses of the APOLLO-B trial (NCT03997383) evaluated the associations between outpatient worsening HF (defined by oral diuretic initiation or intensification), measures of disease progression, and a composite endpoint of all-cause mortality and cardiovascular (CV) events.
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