Results 111 to 120 of about 4,359,782 (346)

Sarcomere Control Mechanisms and the Dynamics of the Cardiac Cycle [PDF]

open access: yesJournal of Biomedicine and Biotechnology, 2010
This review focuses on recent developments in the molecular mechanisms by which Ca activates cardiac sarcomeres and how these mechanisms play out in the cardiac cycle. I emphasize the role of mechanisms intrinsic to the sarcomeres as significant determinants of systolic elastance and ventricular stiffening during ejection. Data are presented supporting
openaire   +3 more sources

Combination of Polydopamine and Plasma Oxidation to Increase Tissue Integration of Polyurethane‐Silicone Copolymers for Cardiovascular Implants

open access: yesAdvanced Healthcare Materials, EarlyView.
Plasma oxidation following polydopamine deposition can significantly reduce the surface hydrophobicity of polyurethane‐siloxanes without impacting surface roughness, thereby increasing fibroblast viability, adhesion, and extracellular matrix production and secretion.
Sophie Armstrong   +5 more
wiley   +1 more source

Cardiac Urea Cycle Activation by Time‐Restricted Feeding Protects Against Pressure Overload‐Induced Heart Failure

open access: yesAdvanced Science
Heart failure is a leading cause of mortality worldwide, necessitating the development of novel therapeutic and lifestyle interventions. Recent studies highlight a potential role of time‐restricted feeding (TRF) in the prevention and treatment of cardiac
Yanzhen Tan   +11 more
doaj   +1 more source

Nanobody‐Decorated Lipid Nanoparticles for Enhanced mRNA Delivery to Tumors In Vivo

open access: yesAdvanced Healthcare Materials, EarlyView.
This study presents a targeted mRNA‐LNP platform engineered with anti‐PSMA nanobodies for prostate cancer therapy. Using different in vivo models, the authors demonstrate selective uptake and mRNA delivery in PSMA+ cancer cells. However, while targeting is enhanced, mRNA delivery efficacy is limited by tissue penetration, tumor necrosis, and immune ...
Pol Escudé Martinez de Castilla   +16 more
wiley   +1 more source

Multifunctional Biomedical Devices with Closed‐Loop Systems for Precision Therapy

open access: yesAdvanced Healthcare Materials, EarlyView.
This review explores two major types of closed‐loop therapeutic systems: self‐sustained and externally triggered. It highlights recent advances in stimuli‐responsive materials, integrated bioelectronics, and data‐driven control strategies, offering insight into emerging strategies for personalized, responsive drug delivery.
Yixuan Leng, Rujie Sun
wiley   +1 more source

A Novel Brain Penetrable Nanocarrier Delivers Brain‐Derived Neurotrophic Factor to Treat Alzheimer's Disease

open access: yesAdvanced Healthcare Materials, EarlyView.
A novel blood‐brain barrier‐penetrating terpolymer nanoparticle to deliver brain‐derived neurotrophic factor (BDNF) for the treatment of Alzheimer's disease (AD) is designed. The BDNF‐TPN significantly enhances BDNF accumulation in the brain following intravenous injection, reduces apoptosis and neuroinflammation, thus promoting neuronal survival and ...
Lily Yi Li   +8 more
wiley   +1 more source

Tapered Pillar Design for High‐Precision Force Readout in Miniaturized Engineered Heart Tissues From Human Pluripotent Stem Cells

open access: yesAdvanced Healthcare Materials, EarlyView.
Engineered heart tissues (EHTs) are a valuable approach in capturing human cardiac physiology and drug responses in vitro. Here, a novel tapered pillar design is developed in an EHT platform to confine tissues in a predefined position‐ at the middle of the pillar height.
Milica Dostanić   +9 more
wiley   +1 more source

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