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Impaired spatial coding of the hippocampus in a dentate gyrus hypoplasia mouse model.
Proc Natl Acad Sci U S A
February 2025
Zanvyl Krieger Mind/Brain Institute, Johns Hopkins University, Baltimore, MD 21218.
The hippocampal dentate gyrus (DG) is thought to orthogonalize inputs from the entorhinal cortex (pattern separation) and relay this information to the CA3 region. In turn, attractor dynamics in CA3 perform a pattern completion or error correction operation before sending its output to CA1. In a mouse model of congenital hypoplasia of the DG, a deficiency in the (Wls) gene, specifically in cells expressing , which targets neuronal progenitors, led to an almost total absence of dentate granule cells and modestly impaired performance in spatial tasks.
View Article and Find Full Text PDFLeft atrial appendage occlusion and radiofrequency ablation in a patient with atrial fibrillation and dextrocardia: a case report.
Front Cardiovasc Med
January 2025
Department of Cardiology, First Hospital of Shanxi Medical University, Taiyuan, Shanxi, China.
Background: Dextrocardia is a rare congenital condition, affecting approximately 1 in 10,000-12,000 individuals. When combined with atrial fibrillation (AF), it becomes even rarer. "One-stop" surgery, including combined radiofrequency ablation (RFA) and left atrial appendage occlusion (LAAO), has become a common clinical treatment for patients with AF who develop cerebral infarction despite regular oral anticoagulants.
View Article and Find Full Text PDFIncreased cardiac macrophages in -deficient hearts: revealing a potential role for macrophage in responding to embryonic myocardial abnormalities.
Front Genet
January 2025
Pediatric Translational Medicine Institute and Pediatric Congenital Heart Disease Institute, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Macrophages are known to support cardiac development and homeostasis, contributing to tissue remodeling and repair in the adult heart. However, it remains unclear whether embryonic macrophages also respond to abnormalities in the developing heart. Previously, we reported that the structural protein Sorbs2 promotes the development of the second heart field, with its deficiency resulting in atrial septal defects (ASD).
View Article and Find Full Text PDFOxygenation and intestinal perfusion and its association with perturbations of the early life gut microbiota composition of children with congenital heart disease.
Front Microbiol
January 2025
German Centre for Infection Research (DZIF), Partner Site Tübingen, Tübingen, Germany.
Background: Early life gut microbiota is known to shape the immune system and has a crucial role in immune homeostasis. Only little is known about composition and dynamics of the intestinal microbiota in infants with congenital heart disease (CHD) and potential influencing factors.
Methods: We evaluated the intestinal microbial composition of neonates with CHD ( = 13) compared to healthy controls (HC, = 30).
Epiphora associated with anomalies of the distal end of the nasolacrimal duct in children over 12 months: endoscopic findings and treatment.
Arq Bras Oftalmol
January 2025
Department of Ophthalmology, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil.
Purpose: Congenital epiphora can be related to anomalies of the nasolacrimal duct. This study aimed to assess the distal end of the nasolacrimal duct and the outcomes of endoscopic treatment in children older than 12 months with congenital epiphora.
Methods: This retrospective analysis describes the clinical characteristics, management, and outcomes of symptomatic congenital lacrimal obstruction in 32 lacrimal systems of 23 children.
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