Results 51 to 60 of about 4,986,038 (258)

An Integrated Oxygen‐Supplying Device and Predictive Multiphysics Model for Extended Ambient Transport of Insulin‐Producing Cells

open access: yesAdvanced Functional Materials, EarlyView.
Cell therapies typically rely on cold‐chain logistics and cryopreservation, limiting access and compromising cell quality. Here, a dual‐chamber device separates an oxygen‐supplying chamber from a hyaluronic acid cargo chamber, sustaining oxygen delivery for over 70 h and enabling ambient‐temperature shipment.
Daniel A. Domingo‐Lopez   +9 more
wiley   +1 more source

Valvular heart disease

open access: yes, 2017
The heart valves, which maintain a unidirectional cardiac blood flow, are covered by endothelial cells and structurally composed by valvular interstitial cells and extracellular matrix.
Magnus Bäck, Petri T. Kovanen
core   +1 more source

Comprehensive In Vitro Profiling Demonstrates Successful Immune Evasion of Bioengineered Immune‐Shielded Heart Valves

open access: yesAdvanced Healthcare Materials, EarlyView.
Living donor heart valves offer superior durability for pediatric patients but trigger immune rejection. Lentiviral delivery of viral immune‐evasion genes US2 and Serpin b9 into donor valve cells and valve tissue suppresses HLA expression, reduces PBMC clustering and cytotoxic killing, and induces transcriptional immune‐tolerance programs, paving the ...
Abraham van Wijk   +11 more
wiley   +1 more source

Post-transplant diabetes is associated with late systolic left ventricular dysfunction after heart transplantation

open access: yesJHLT Open
Background: Post-transplant diabetes mellitus (PTDM) is common after orthotopic heart transplantation (OHT), but its long-term impact on myocardial function is unclear.
Anna Werther Evaldsson, PhD   +6 more
doaj   +1 more source

S‐Nitrosothiols as Thiol‐Protecting Groups for Controlled Thiol‐Maleimide Crosslinking of Homogeneous Soft Hydrogels

open access: yesAdvanced Materials, EarlyView.
Rapid thiol‐maleimide addition frequently outpaces mixing, resulting in heterogeneous hydrogels. S‐nitrosothiols act as thiol‐protecting groups, allowing uniform mixing with maleimide‐functionalized polymers before gelation. Sodium thiosulfate or sodium ascorbate then regenerates thiols on demand, triggering controlled thiol‐maleimide crosslinking ...
Julian A. Serna   +7 more
wiley   +1 more source

Rationale and Design of the CREATE Trial: A Multicenter, Randomized Comparison of Continuation or Cessation of Single Antithrombotic Therapy at 1 Year After Transcatheter Aortic Valve Replacement

open access: yesJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
Background Current guidelines and expert consensus recommend lifelong single antiplatelet therapy for patients undergoing transcatheter aortic valve replacement who have no indication for anticoagulation or dual antiplatelet therapy. However, there is no
Ran Liu   +9 more
doaj   +1 more source

Epidemiology of Valvular Heart Disease

open access: yes, 2022
Acquired diseases of the aortic and mitral valves are the most common cause of morbidity and mortality among Valvular heart diseases. Aortic stenosis (AS) is increasing in incidence in the United States (4,43 US), driven largely by an aging demographic ...
Antevil, Jared L   +3 more
core   +1 more source

Programmable Pneumatic Actuator System for a Bioinspired Artificial Colon

open access: yesAdvanced Materials Technologies, EarlyView.
A modular soft robotic colon simulator driven by programmable pneumatic actuation is developed to mimic physiological and pathological‐like motility patterns of the large intestine. Finite element–guided design and distributed control enable anatomically realistic deformation for peristalsis, segmentation, and mass movements, supporting capsule ...
Andrew Bickerdike   +6 more
wiley   +1 more source

Valvular heart disease

open access: yes, 2018
Traditionally, sex differences in valvular heart disease have been described as those related to the epidemiologic predominance of rheumatic heart disease in women, particularly as exacerbated by the physiologic alterations during pregnancy.
Sharon Mulvagh
core   +1 more source

Intelligent Micro/Nanorobots for Targeted Interventional Therapy: From Bench to Clinic

open access: yesAdvanced Robotics Research, EarlyView.
Zirui Zhang et al. reviewed the application and challenges of mobile nanomachines in interventional therapy. By converting exogenous energy, including chemical, magnetic, optical, and ultrasonic sources, into mechanical forces, micro/nanorobots (MNRs) enable precise actuation at unprecedented scales. Evolving far beyond traditional drug delivery, these
Zirui Zhang   +5 more
wiley   +1 more source

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