Cell-to-cell communication is essential for proper embryonic development and its dysfunction may lead to disease. Recent research has drawn attention to a new group of molecules called connexins (Cxs) and pannexins (Panxs). Cxs have been described for more than forty years as pivotal regulators of embryogenesis; however, the exact mechanism by which they provide this regulation has not been clearly elucidated. Consequently, Cxs and Panxs have been linked to congenital neurodegenerative diseases such as Charcot-Marie-Tooth disease and, more recently, chronic hemichannel opening has been associated with adult neurodegenerative diseases (e.g., Alzheimer’s disease). Cell-to-cell communication via gap junctions formed by hexameric assemblies of Cxs, known as connexons, is believed to be a crucial component in developmental regulation. As for Panxs, despite being topologically similar to Cxs, they predominantly seem to form channels connecting the cytoplasm to the extracellular space and, despite recent research into Panx1 (Pannexin 1) expression in different regions of the brain during the embryonic phase, it has been studied to a lesser degree. When it comes to the nervous system, Cxs and Panxs play an important role in early stages of neuronal development with a wide span of action ranging from cellular migration during early stages to neuronal differentiation and system circuitry formation. In this review, we describe the most recent available evidence regarding the molecular and structural aspects of Cx and Panx channels, their role in neurodevelopment, congenital and adult neurological diseases, and finally propose how pharmacological modulation of these channels could modify the pathogenesis of some diseases.

Background and Objectives: Aortic aneurysms and dissections are life-threatening vascular disorders with high morbidity and mortality. Enhancing diagnostic and therapeutic strategies requires a precise characterization of their anatomical and clinical features. This study aimed to detail the demographic, clinical, and imaging-based anatomical characteristics of aortic aneurysms and dissections in a cohort of Colombian patients. Materials and Methods: We conducted a retrospective, descriptive, observational study at a tertiary hospital in Bogotá, Colombia. Adult patients (≥18 years) with radiologically confirmed aortic aneurysm or dissection on computed tomography angiography (CTA) between 2010 and 2021 were included. Demographic, clinical, and morphological data were extracted. Associations were explored using chi-squared and Mann–Whitney U tests. Multivariate logistic regression was applied to identify independent predictors of in-hospital mortality. Results: This study included 539 patients (mean age: 69.3 ± 11.5 years; 53.6% male). Infrarenal abdominal aortic aneurysms were the most frequent (63.7%), with fusiform morphology observed in 92% of cases. Saccular aneurysms were significantly more common in females (p = 0.0267) and in non-infrarenal segments (p = 0.0162). Among patients with aneurysms, aortic diameter was an independent predictor of mortality (OR = 1.03; 95% CI: 1.01–1.05; p < 0.001). No individual variable significantly predicted mortality in dissection cases. Conclusions: In this cohort, infrarenal location and fusiform shape predominate. Morphological patterns were associated with sex and anatomical distribution. Although trends were observed, no statistically significant predictors of death were identified in dissection cases. These findings highlight the value of early detection and tailored management and reinforce the importance of generating region-specific data to inform clinical decision making in Latin American settings.