Results 101 to 110 of about 168,612 (302)

Soft, Multi‐Wavelength Photoplethysmography Enables Reliable Neonatal Blood Pressure Monitoring Via Error Stratification

open access: yesAdvanced Science, EarlyView.
A soft hybrid multi‐wavelength PPG wearable acquires neonatal signals. Synchronized PPG and invasive ABP data are segmented into fixed windows. A 1D‐EfficientNet model predicts segment‐level SBP and DBP. Model performance is examined with retrospective subgroup analysis across acquisition conditions.
Wenqi Shi   +12 more
wiley   +1 more source

Fractionated Atrial Electrograms Identify Sites of Autonomic Responses During Pulmonary Vein Isolation: Insights for Cardioneuroablation

open access: yesJournal of Arrhythmia
Background Cardioneuroablation (CNA) targets atrial ganglionated plexuses (GP) to treat vagally mediated bradyarrhythmias. Automated electrogram fractionation mapping has been proposed as a surrogate tool for GP localization, but optimal parameter ...
Juan F. Agudelo‐Uribe   +5 more
doaj   +1 more source

Anomalous origin of the right coronary artery from the pulmonary artery with a right coronary artery to left anterior descending artery fistula: A case report

open access: yesRadiology Case Reports
A 75-year-old female patient with a history of arterial hypertension presented with oppressive chest pain radiating to the left upper limb, accompanied by dyspnea on mild exertion.
Jose David Sáenz López   +6 more
doaj   +1 more source

Red Blood Cells as Endogenous Biotweezers for Optical Micromanipulation In Vivo

open access: yesAdvanced Science, EarlyView.
By synergistically integrating the long‐distance manipulation fiber probe (LDMFP) and endogenous red blood cells (RBCs) as biocompatible optical elements, a natural RBC biotweezer was developed for the desired microparticle manipulation and immune cell activation within living vasculature, which might offer an alternative tool for intravital optical ...
Tong Yang   +9 more
wiley   +1 more source

Tirofiban prevents the effects of SARS-CoV-2 spike protein on macrophage activation and endothelial cell death

open access: yesHeliyon
SARS-CoV-2 viral-derived particles have been proposed to have a causal role in tissue inflammation. Macrophage is the culprit cell in the pathogenesis of destructive inflammatory response to the SARS-CoV-2 virus. We investigated whether the spike protein
Laura Marrone   +9 more
doaj   +1 more source

Functional evaluation of penile hemodynamics [PDF]

open access: yes, 1988
Stief, Christian Georg   +7 more
core   +1 more source

Deep‐Learning‐Driven High‐Fidelity In Vivo Hyperspectral Fluorescence Imaging Under Extreme Photon‐Limited Conditions

open access: yesAdvanced Science, EarlyView.
Highly overlapping fluorescent signals become distinguishable in photon‐limited living organisms via advanced imaging with intelligent reconstruction. The resulting in vivo hyperspectral imaging capability reveals nanoplastic uptake and circulation in live zebrafish, providing a new approach for studying complex biological and environmental processes ...
Renjian Li   +11 more
wiley   +1 more source

A Novel Pak1 Activator Ameliorates ER Stress for HFpEF Therapy

open access: yesAdvanced Science, EarlyView.
Chronic metabolic stress is a major contributor to HFpEF progression. Under prolonged metabolic stress, Pak1 activity becomes impaired, contributing to disrupted ER proteostasis, cardiomyocyte apoptosis, fibrosis, and diastolic dysfunction. Mechanistically, Pak1 overexpression activates the ERK1/2–MNK1–eIF4E signaling axis, promotes translational ...
Honglin Xu   +17 more
wiley   +1 more source

Spatio-temporal identification of hemodynamics in fMRI: A data-driven approach

open access: yes, 2004
This paper presents a new data-driven method to identify the spatial and temporal characteristics of the cerebral hemodynamics in functional magnetic resonance imaging (fMRI).
Yang, GZ   +5 more
core   +1 more source

Copper‐Doped Prussian Blue Nanozymes With Hyaluronic Acid‐Mediated Targeting Alleviate Oxidative Stress and Regulate Cholesterol Handling for Atherosclerosis Therapy

open access: yesAdvanced Science, EarlyView.
CuPB@HA is a CD44‐associated, plaque‐targeted nanozyme that alleviates oxidative stress, inflammation, and lipid accumulation in macrophages. By reducing CD36‐dependent lipid uptake and promoting ABCA1/ABCG1‐mediated cholesterol handling, it improves macrophage function, preferentially accumulates in atherosclerotic lesions, reduces plaque burden, and ...
Jianliang Ou   +14 more
wiley   +1 more source

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