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Chronic inflammation contributes to the prevalence of cardiovascular disease in people living with HIV (PLWH). The immune mechanisms driving atherosclerosis progression in PLWH remain unclear. This study conducted comprehensive assessments of medium-sized coronary arteries and aorta from deceased PLWH and controls without HIV using DNA/RNA assays, spatial transcriptomics, and high-resolution mass spectrometry. Findings revealed more significant inflammation correlated with higher HIV copy numbers in late atheroma of PLWH. Enhanced and decreased expression in CD163 macrophages were co-localized in coronaries of PLWH, suggesting a reduction in plasma lipoprotein clearance compared to controls. Spatial analyses identified potential therapeutic targets by revealing inflammatory changes in medium-sized arteries and the aorta. We examined the relationship between atherosclerotic phenotypes and inflammatory gene expression in Vanderbilts Biobank to study these findings in a larger clinical cohort. This established a significant association between and gene expressions with atherosclerosis, partly influenced by HIV.
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http://dx.doi.org/10.21203/rs.3.rs-5125826/v1 | DOI Listing |
Int J Gen Med
September 2025
Department of Radiology, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi Province, 710038, People's Republic of China.
Purpose: Compared with retrospective ECG-gated arterial phase scan, to investigate the clinical application value of dual-source CT large-spiral arterial late scan in the imaging evaluation of left atrial appendage (LAA).
Patients And Methods: A total of 108 patients requiring LAA CT angiography (CTA) due to atrial fibrillation (AF) were selected from September 2024 to December 2024, including 52 patients in group A (Flash large-spiral arterial late scan) and 56 patients in group B (retrospective ECG-gated arterial phase scan). All patients underwent double-phase scan.
Interv Radiol (Higashimatsuyama)
June 2025
Department of Radiological Sciences, Nagasaki University Graduate School of Biomedical Sciences, Japan.
A 74-year-old man who had received Bacillus Calmette-Guérin therapy for bladder cancer developed vasovagal syncope. Contrast-enhanced computed tomography showed multiple pseudoaneurysms in the left internal carotid artery, aorta, and right common femoral artery, which were considered to be infected aneurysms. Parent artery occlusion was planned for the left internal carotid artery, but the balloon occlusion test was not possible because of the patient's restlessness; therefore, the patient was treated with a Viabahn stent graft.
View Article and Find Full Text PDFInterv Radiol (Higashimatsuyama)
April 2025
Department of Diagnostic Radiology, National Cancer Center Hospital East, Japan.
Arterial esophageal hemorrhage, a relatively rare condition, necessitates prompt therapeutic intervention. The esophageal arteries, originating directly from the aorta and being extremely narrow, are often difficult to identify through angiography alone. We report two cases of arterial esophageal hemorrhage related to esophageal cancer in which the esophageal arteries were identified by contrast-enhanced computed tomography prior to angiography, enabling successful transcatheter arterial embolization.
View Article and Find Full Text PDFInterv Radiol (Higashimatsuyama)
August 2025
Department of Diagnostic Radiology, National Cancer Center Hospital, Japan.
Purpose: To determine how the anatomical morphology of the left subclavian artery and aortic arch affects the technical difficulty of navigating the aortic arch during left transradial access for visceral vascular interventions.
Material And Methods: We retrospectively evaluated 98 patients who underwent visceral vascular interventions using left transradial access from January 2022 to December 2022. Cannulation of the descending aorta was considered difficult when the time required to manipulate the catheter in the aortic arch exceeded 30 seconds.
Eur Heart J Case Rep
September 2025
Department of Radiology, The First Affiliated Hospital of Bengbu Medical University, No. 287 Changhuai Road, Bengbu, Anhui Province 233004, China.
Background: Fulminant myocarditis (FM) is a rare but serious inflammatory disease of the heart that should be considered for extracorporeal membrane oxygenation (ECMO) supportive therapy when it occurs. The diagnosis of FM is made more difficult in the context of Marfan's syndrome combined with aortic root dilation. We report a case of a patient on ECMO support and with comorbid Marfan's syndrome who was finally diagnosed with FM after computed tomography angiography (CTA) differentiated between FM, coronary artery disease, and aortic root dilation.
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