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Longitudinal changes of macular neurodegenerative and vascular abnormalities on OCTA in sickle cell disease.
Retina
January 2025
Department of Ophthalmology, Amsterdam UMC, Amsterdam, The Netherlands.
Purpose: To evaluate the presence and progression of maculopathy in patients with sickle cell disease (SCD) using Optical Coherence Tomography (OCT) and OCT-Angiography (OCTA), and to identify clinical/laboratory risk factors for progression during follow-up.
Methods: Complete ophthalmic examination, including fundoscopy and macular SD-OCT/OCTA scans, was performed in consecutive SCD-patients (HbSS/HbSβ0/HbSβ+/HbSC genotype) during baseline and follow-up visits. SCR stage was based on fundoscopy instead of the Goldberg classification, since fluorescein angiography was not routinely used.
Gastric Antral Vascular Ectasia Syndrome With Aortic Stenosis: A Twist on Heyde Syndrome?
J Med Cases
January 2025
Gastroenterology and Hepatology, St. Joseph's University Medical Center, Paterson, NJ, USA.
Heyde syndrome is a triad of aortic stenosis (AS), gastrointestinal (GI) bleeding from angiodysplasia, and acquired von Willebrand disease (vWD). It is hypothesized that stenotic aortic valves cleave von Willebrand factor (vWF) multimers, predisposing patients to bleeding from GI angiodysplasias. This hypothesis is supported by the observation that aortic valve replacement often leads to the resolution of GI bleeding.
View Article and Find Full Text PDFSemaglutide restores astrocyte-vascular interactions and blood-brain barrier integrity in a model of diet-induced metabolic syndrome.
Diabetol Metab Syndr
January 2025
Laboratory of Immunopharmacology, Oswaldo Cruz Institute, Oswaldo Cruz Foundation-Fiocruz, Campus Maré. Centro de Pesquisa, Inovação e Vigilância em Covid-19 e Emergências Sanitárias. Endereço: Av. Brasil, 4036-Bloco 2. Manguinhos, Rio de Janeiro, RJ, CEP 21040-361, Brazil.
Introduction: Metabolic syndrome (MetS) is a metabolic disorder related to obesity and insulin resistance and is the primary determinant of the development of low-intensity chronic inflammation. This continuous inflammatory response culminates in neuroimmune-endocrine dysregulation responsible for the metabolic abnormalities and morbidities observed in individuals with MetS. Events such as the accumulation of visceral adipose tissue, increased plasma concentrations of free fatty acids, tissue hypoxia, and sympathetic hyperactivity in individuals with MetS may contribute to the activation of the innate immune response, which compromises cerebral microcirculation and the neurovascular unit, leading to the onset or progression of neurodegenerative diseases.
View Article and Find Full Text PDFOptical Coherence Tomography Angiography findings in Syphilitic Outer Retinitis.
Retin Cases Brief Rep
December 2024
Department of Ophthalmology, Hospital de Clínicas, University of Buenos Aires, Buenos Aires, Argentina.
Purpose: to report optical coherence tomography angiography findings in syphilitic outer retinopathy, a singular clinical manifestation of ocular syphilis.
Methods: case report.
Results: Multimodal imaging including optical coherence tomography angiography was performed in a patient presenting syphilitic outer retinopathy.
Biallelic postzygotic RASA1 variants in a germline-negative patient with capillary malformation-arteriovenous malformation.
Int J Dermatol
January 2025
INSERM UMR1231 GAD "Génétique des Anomalies du Développement", FHU-TRANSLAD, Université de Bourgogne Franche-Comté, Dijon, France.
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