Mineral Stress Drives Loss of Heterochromatin: An Early Harbinger of Vascular Inflammaging and Calcification.

Background: Vascular calcification is a detrimental aging pathology markedly accelerated in patients with chronic kidney disease. Prelamin A is a biomarker of vascular smooth muscle cell aging that accelerates calcification however the mechanisms remain undefined.

Methods: Vascular smooth muscle cells were transduced with prelamin A using an adenoviral vector and epigenetic modifications were monitored using immunofluorescence and targeted polymerase chain reaction array.

Usefulness of preprocedural 3-dimensional computed tomography planning in assisting one-stage pulmonary veins isolation with concomitant left atrial appendage occlusion procedure: A pilot study.

Background: The optimal imaging modality for selecting the device size in patients with atrial fibrillation undergoing one-stop left atrial appendage occlusion (LAAO) with concomitant pulmonary vein isolation (PVi) remains undefined. We compared preprocedural 3-dimensional computed tomography (3D CT) with intra-procedural transesophageal echocardiography (TEE) and left atrial appendage (LAA) angiography in guiding one-stage PVi and LAAO.

Methods: We measured the LAA ostium diameter using an interactive 3D CT system with a central line-based approach and compared these measurements with those from intra-procedural TEE and angiography, and the actual device size.

Surface Bi-vacancy and corona polarization engineered nanosheets with sonopiezocatalytic antibacterial activity for wound healing.

Piezocatalytic therapy is an emerging therapeutic strategy for eradicating drug-resistant bacteria, but suffers from insufficient piezoelectricity and catalytic active site availability. Herein, Bi-vacancies (BiV) and corona polarization were introduced to BiOBr nanosheets to create a BiOBr-BiVP nanoplatform for piezocatalytic antibacterial therapy. This meticulously tailored strategy strengthens the built-in electric field of nanosheets, enhancing piezoelectric potential and charge density and boosting charge separation and migration efficiency.

Photoswitchable Branched Polyurethanes Based on Hexaarylbiimidazole for Photolithography.

Hexaarylbiimidazole (HABI) molecules have awakened a broad interest in photo-processing, super-resolution imaging, photoinduced self-healing materials, and photomechanical hydrogels due to their excellent photosensitivity and photo-induced cleavage properties. In this work, a novel photoswitchable branched polyurethanes (BPU), which are synthesized by copolymerizing HABI with glycerol, isophorone diisocyanate (IPDI), and polyethylene glycol (PEG), is designed. 7-Diethylamino-4-methylcoumarin (DMCO) is introduced as a radical quencher, which can not only avoid the hydroxyl interfering from conventional radical scavengers during the polymerization process but also promote efficient quenching of TPIR radicals.

Barcoded screening identifies nanocarriers for protein delivery to kidney.

Targeted protein delivery with nanocarriers holds significant potential to enhance therapeutic outcomes by precisely directing proteins to specific organs or tissues. However, the complex interactions between nanocarriers and the biological environment pose considerable challenges in designing effective targeted delivery vehicles. In this study, we address this challenge by leveraging DNA-barcoded high-throughput screening.