Results 121 to 130 of about 928,609 (255)

Recommendations for quantitative cerebral perfusion MRI using multi-timepoint arterial spin labeling: acquisition, quantification, and clinical applications [PDF]

open access: yes
Accurate assessment of cerebral perfusion is vital for understanding the hemodynamic processes involved in various neurological disorders and guiding clinical decision-making.
Thomas, D.L.   +102 more
core   +1 more source

Nrsn1–Smarcc1 Coupling Regulates Neural Stem Cell Differentiation and Chronic‐phase Recovery After Ischemic Stroke

open access: yesAdvanced Science, EarlyView.
In the post‐stroke brain, Foxa2 induces the transcriptional upregulation of Nrsn1 in NSCs. Nrsn1 functionally couples with Smarcc1, modulating its nuclear availability and protein abundance, thereby influencing Smarcc1‐associated regulatory programs linked to neuronal lineage commitment. Through this coupling, Nrsn1 promotes the differentiation of NSCs
Ruolin Zhang   +18 more
wiley   +1 more source

Increased Disarray of Extracellular Matrix Collagen‐I Fiber Network and Compromised Biomechanics in Aortae From Marfan‐Syndrome Mice Assessed Through Combined Opto‐Biomechatronics

open access: yesAdvanced Science, EarlyView.
Combined structure‐function assessment in aortic rings from Marfan mice using MechaMorph Opto‐Biomechatronics technology relates increased elasticity (stiffness) and dynamic viscosity and less ordered extracellular matrix 3D‐structure (collagen) as potential causes for impaired Windkessel function and compromised haemodynamics in Marfan's syndrome ...
Dominik Schneidereit   +10 more
wiley   +1 more source

Complications in monochorionic twin pregnancies

open access: yesJournal of Perinatal Medicine
Monochorionic placentas occur in two-thirds of identical (monozygotic) twin pregnancies and typically feature inter-fetal vascular anastomoses on their surface.
Klaritsch Philipp
doaj   +1 more source

Expectative Management of a Late-Diagnosis Twin Reversed Arterial Perfusion Sequences (TRAPS) - A Rare Case Report

open access: yesMedical and Health Journal
Twin Reversed Arterial Perfusion Sequence (TRAPS) is a rare and severe complication unique to monochorionic twin pregnancies, characterized by retrograde perfusion of a nonviable acardiac twin by a structurally normal pump twin.
Velika Devina   +3 more
semanticscholar   +1 more source

Spatio-Temporal Modelling of Perfusion Cardiovascular MRI [PDF]

open access: yes, 2010
Myocardial perfusion MRI provides valuable insight into how coronary artery and microvascular diseases affect myocardial tissue. Stenosis in a coronary vessel leads to reduced maximum blood flow (MBF), but collaterals may secure the blood supply of the ...
Schmid, Volker J.
core   +1 more source

ROS‐Responsive Nanoparticle Delivery of Dexmedetomidine Protects the Gut Vascular Barrier After Intestinal Ischemia/Reperfusion via the HDAC‐H3K27ac‐TCF4 Axis

open access: yesAdvanced Science, EarlyView.
A low dose of dexmedetomidine, delivered by ROS‐responsive nanoparticles, preferentially accumulates in the ischemic intestine and restores gut vascular barrier integrity after ischemia/reperfusion injury. This nanoparticle‐based strategy prevents bacterial translocation and liver damage without cardiorespiratory side effects, working through HDAC ...
Hu‐Fei Zhang   +10 more
wiley   +1 more source

Acardiac twinning: A rare case of noninterventional positive resolution

open access: yesJournal of Integrative Medicine and Research
Twin reversed arterial perfusion (TRAP) sequence refers to a rare pregnancy complication caused by an abnormality in the umbilical artery in monochorionic twins. Here, we present a case report of a 28-year-old female who was referred to our hospital upon
Deepti Ghosh, Asima Das
doaj   +1 more source

Geometry‐Encoded Soft Strain Sensing via Liquid‐Metal Transmission Lines

open access: yesAdvanced Science, EarlyView.
This study presents a liquid‐metal transmission‐line strain sensor that achieves intrinsic decoupling by encoding axial elongation into propagation delay. The time‐domain readout remains stable under complex off‐axis. This enables reliable, repeatable, real‐time elongation measurement in dynamic, multiaxial loading environments for wearable electronics,
Zhang Liu   +12 more
wiley   +1 more source

A Computational Approach for Biomimetic Design of Liver‐On‐A‐Chip

open access: yesAdvanced Intelligent Discovery, EarlyView.
A biomimetic liver‐on‐a‐chip with antiparallel perfusion was designed using COMSOL‐guided simulation to replicate hepatic acinus transport. Full‐scale modelling revealed diffusion‐dominated, length‐dependent nutrient gradients and low‐shear conditions.
Zhenxu Yang   +9 more
wiley   +1 more source

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