"Form follows function": the developmental morphology of the cardiac atria.

Although the heart atria have a lesser functional importance than the ventricles, atria play an important role in the pathophysiology of heart failure and supraventricular arrhythmias, particularly atrial fibrillation. In addition, knowledge of atrial morphology recently became more relevant as cardiac electrophysiology and interventional procedures in the atria gained an increasingly significant role in the clinical management of patients with heart disease. The atrial chambers are thin-walled, and several vessels enter at the level of the atria.

Enzyme-independent functions of HDAC3 in the adult heart.

The cardioprotective effects of histone deacetylase (HDAC) inhibitors (HDIs) are at odds with the deleterious effects of HDAC depletion. Here, we use HDAC3 as a prototype HDAC to address this contradiction. We show that adult-onset cardiac-specific depletion of HDAC3 in mice causes cardiac hypertrophy and contractile dysfunction on a high-fat diet (HFD), excluding developmental disruption as a major reason for the contradiction.

Effect analysis of radiofrequency catheter ablation in the treatment of 7 children with atrial tachycardia-induced cardiomyopathy.

Background: Tachycardia-induced cardiomyopathy refers to changes in cardiac structure and function that result from rapid arrhythmia and can manifest as a continuous or recurrent event. Cardiomyopathy induced by atrial tachycardia is typically reversible if the arrhythmia is effectively controlled. There are few literature reports of atrial tachycardia-induced cardiomyopathy in children, and fewer cases have been effectively treated by radiofrequency catheter ablation in children.

An Expanded Registry of Candidate cis-Regulatory Elements for Studying Transcriptional Regulation.

Mammalian genomes contain millions of regulatory elements that control the complex patterns of gene expression. Previously, The ENCODE consortium mapped biochemical signals across many cell types and tissues and integrated these data to develop a Registry of 0.9 million human and 300 thousand mouse candidate cis-Regulatory Elements (cCREs) annotated with potential functions.

A Low-Cost, Open-Source 3D Printer for Multimaterial and High-Throughput Direct Ink Writing of Soft and Living Materials.

Direct ink writing is a 3D printing method that is compatible with a wide range of structural, elastomeric, electronic, and living materials, and it continues to expand its uses into physics, engineering, and biology laboratories. However, the large footprint, closed hardware and software ecosystems, and expense of commercial systems often hamper widespread adoption. This work introduces a compact, low-cost, multimaterial, and high-throughput direct ink writing 3D printer platform with detailed assembly files and instructions provided freely online.

Approaching Universal Prenatal Detection of Significant Cardiovascular Malformations in Nevada.

Objective: To report our recent experience with prenatal detection of significant cardiovascular malformations (CVMs) in Nevada's state-wide maternal population receiving prenatal care.

Methods: We queried our databases for those with significant CVMs diagnosed pre- or postnatally between May 1, 2021, and April 30, 2024. We defined CVMs as those that required, would have required, or will likely require a therapeutic procedure in the first 12 months.

High Shear Stress Reduces ERG Causing Endothelial-Mesenchymal Transition and Pulmonary Arterial Hypertension.

Background: Computational modeling indicated that pathological high shear stress (HSS; 100 dyn/cm) is generated in pulmonary arteries (PAs; 100-500 µm) in congenital heart defects causing PA hypertension (PAH) and in idiopathic PAH with occlusive vascular remodeling. Endothelial-to-mesenchymal transition (EndMT) is a feature of PAH. We hypothesize that HSS induces EndMT, contributing to the initiation and progression of PAH.

Global trends in depressive disorder prevalence and DALYs among young populations: a comprehensive analysis from 1990 to 2021.

To analyze the trend changes in the disease burden of depressive disorder (DD) among youth and adolescents aged 10 to 29 years globally from 1990 to 2021 to provide a theoretical basis for the prevention and treatment of DD in young populations. Utilizing data from the Global Burden of Disease Study 2021, prevalence rates and disability-adjusted life years (DALYs) were employed as indicators. Trends in the disease burden of DD among global youth aged 10 to 29 years from 1990 to 2021 were analyzed with joinpoint regression models.

The effect of anti-scatter grids on radiation exposure during transcatheter patent ductus arteriosus closure in premature infants.

Background: Radiation exposure and the effect of anti-scatter grids are not well studied in premature infants during transcatheter patent ductus arteriosus closure.This study aimed to investigate whether the use of anti-scatter grids altered the level of radiation exposure to premature infants undergoing transcatheter patent ductus arteriosus closure.

Methods And Results: Demographic and radiation exposure data for premature infants who underwent transcatheter patent ductus arteriosus closure at the Stead Family Children's Hospital from 10/2019 to 10/2021 were retrospectively reviewed and analyzed.

Molecular convergence of risk variants for congenital heart defects leveraging a regulatory map of the human fetal heart.

Congenital heart defects (CHD) arise in part due to inherited genetic variants that alter genes and noncoding regulatory elements in the human genome. These variants are thought to act during fetal development to influence the formation of different heart structures. However, identifying the genes, pathways, and cell types that mediate these effects has been challenging due to the immense diversity of cell types involved in heart development as well as the superimposed complexities of interpreting noncoding sequences.

Storm: Incorporating transient stochastic dynamics to infer the RNA velocity with metabolic labeling information.

The time-resolved scRNA-seq (tscRNA-seq) provides the possibility to infer physically meaningful kinetic parameters, e.g., the transcription, splicing or RNA degradation rate constants with correct magnitudes, and RNA velocities by incorporating temporal information.

Yasui procedure for an interrupted aortic arch type C with an aberrant right subclavian artery from the pulmonary artery: right subclavian artery-free graft technique.

A male neonate (2.5 kg) who presented with an interrupted aortic arch type C, hypoplasia of the aortic valve and left ventricular outflow tract obstruction received bilateral pulmonary artery bands as a first step of a hybrid interim palliation. Due to an intimal tissue flap at the origin of the left common carotid artery and a high-risk situation for PDA stenting, a complete early correction was undertaken.

Spatiotemporal modeling of molecular holograms.

Quantifying spatiotemporal dynamics during embryogenesis is crucial for understanding congenital diseases. We developed Spateo (https://github.com/aristoteleo/spateo-release), a 3D spatiotemporal modeling framework, and applied it to a 3D mouse embryogenesis atlas at E9.

Cardiac Ablation in the Pediatric Population at a Tertiary Care Center in a Developing Country.

Introduction: The aim of this study was to describe our experience and outcome of ablation therapy for arrhythmias in pediatrics at a tertiary care center.

Methods: Data was collected retrospectively from the hospital medical records. All pediatrics presenting to AUBMC between 2000 and 2020 who underwent cardiac ablation were included.

Lymphatic Disorder Management in Pediatric Patients With Congenital Heart Disease in European Pediatric Cardiology Centers: Current Status, Disparities, and Future Considerations.

Background: Lymphatic disorders such as protein-losing enteropathy, plastic bronchitis, and chylothorax are important complications of the Fontan circulation and ultimately result in an increased risk of early death. Several European centers are now performing lymphatic procedures. The aim of this study is to map the extent of these lymphatic disorders and treatments provided across European pediatric cardiology centers.

Impact of weight loss on the risk of urinary incontinence: the role of sex and body type.

Introduction: Although weight loss is known to alleviate urinary incontinence (UI) symptoms, the effects of sex and body size on this relationship remain insufficiently explored.

Materials And Methods: We analyzed data from the National Health and Nutrition Examination Survey (NHANES) 2007-2018, comprising 28,161 participants. Weighted logistic regression analysis, fitted curves, and subgroup analysis were used to assess the association between the percentage of weight loss and UI.

Fetal Hypoplastic Left Heart Syndrome with Intact Atrial Septum: From Successful in utero Stenting to Subtotal Stent Occlusion - A Case Report.

Introduction: Fetuses with hypoplastic left heart syndrome (HLHS) and intact atrial septum (IAS) have an overall poor prognosis and a high risk of neonatal death due to severe secondary lung damage. Intrauterine stenting of the atrial septum was introduced in these patients to enable survival.

Case Presentation: We present a case of a HLHS fetus with IAS and signs of incipient nutmeg lung, in whom at 30 weeks gestation an atrial stent was successfully placed but continuously developed subtotal stent-obstruction over the next weeks.

A familial case of aortic dilatation with p.Tyr470Cys in in which the phenotype included only vascular lesions.

Hereditary connective tissue diseases have different risks of aortic dissection depending on the causative gene. We report a family with no extravascular phenotype and a clinical diagnosis of familial thoracic aortic aneurysm and dissection, but genetic testing confirmed p.Tyr470Cys in , which is typically the responsible gene for Loeys-Dietz syndrome.