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3D-Printed Myocardium-Specific Structure Enhances Maturation and Therapeutic Efficacy of Engineered Heart Tissue in Myocardial Infarction.

Adv Sci (Weinh)

January 2025

Institute for Cardiovascular Science & Department of Cardiovascular Surgery of the First Affiliated Hospital, State Key Laboratory of Radiation Medicine and Protection, Suzhou Medical College, Soochow University, Suzhou, Jiangsu, 215000, China.

Despite advancements in engineered heart tissue (EHT), challenges persist in achieving accurate dimensional accuracy of scaffolds and maturing human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs), a primary source of functional cardiac cells. Drawing inspiration from cardiac muscle fiber arrangement, a three-dimensional (3D)-printed multi-layered microporous polycaprolactone (PCL) scaffold is created with interlayer angles set at 45° to replicate the precise structure of native cardiac tissue. Compared with the control group and 90° PCL scaffolds, the 45° PCL scaffolds exhibited superior biocompatibility for cell culture and improved hiPSC-CM maturation in calcium handling.

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Roles of calcium in ameloblasts during tooth development: A scoping review.

J Taibah Univ Med Sci

February 2025

Department of Prosthodontics/Dental Material, Dr. Ziauddin Ahmad Dental College, Aligarh Muslim University, India.

Objectives: Calcium ions (Ca) play crucial role in tooth development, particularly in maintaining enamel density during amelogenesis. Ameloblasts require specific proteins such as amelogenin, ameloblastin, enamelin, kallikrein, and collagen for enamel growth. Recent research has highlighted the importance of calcium and fluoride ions, as well as the TRPM7, STIM, and SOCE pathways, in regulating various stages of enamel formation.

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Molecular Insights Into the Sensory Adaption of the Cave-Dwelling Leech to the Karst Cave Environment.

Ecol Evol

January 2025

Hunan Provincial Key Laboratory of Ecological Conservation and Sustainable Utilization of Wulingshan Resources College of Biology and Environmental Sciences, Jishou University Jishou Hunan China.

Karst caves are a unique environment significantly different from the external environment; adaptation of cave-dwelling animals to the cave environment is often accompanied by shifts in the sensory systems. Aquatic and terrestrial leeches have been found in the karst caves. In this study, we conducted a transcriptome analysis on the cave-dwelling leech .

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Aqueous zinc-ion batteries are an appealing electrochemical energy storage solution due to their affordability and safety. Significant attention has been focused on vanadium oxide cathode materials for ZIBs, owing to their high specific capacity, unique layered or tunnel structures, and low cost. Compared to traditional methods for preparing and assembling electrode materials, direct current (DC) magnetron sputtering allows direct synthesis and uniform deposition on current collectors, offering advantages such as simplicity, mild reaction conditions, and strong film adhesion.

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Background: Supraventricular tachycardia (SVT) is very common in daily clinical practice, especially in the emergency department, with rapid onset and urgent management. The review highlights the recent genetic predispositions and mechanisms in SVT.

Methods: Through analysis of epidemiology, familial clustering, and gene mutations of the relevant literature,the review elucidates the genetic properties and potential pathophysiology of SVT.

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