Results 51 to 60 of about 365,096 (316)

A Case of Splenic Artery Pseudoaneurysm in HIV-TB Co-infection: Rare Cause of Haematemesis [PDF]

open access: yesJournal of Clinical and Diagnostic Research
Splenic Artery Pseudoaneurysm (SAP) is an uncommon false aneurysm that essentially develops due to the weakening of the vessel wall as a result of various local pathologies.
Prakash Shende   +3 more
doaj   +1 more source

Rapid Glass‐Substrate Digital Light 3D Printing Enables Anatomically Accurate Stroke Patient‐Specific Carotid Artery‐on‐Chips for Personalized Thrombosis Investigation

open access: yesAdvanced Materials, EarlyView.
A rapid glass‐substrate 3D microfabrication method creates anatomically accurate carotid artery‐on‐a‐chip models from stroke patient scans in 2 h. These miniaturized devices replicate patient‐specific blood vessel geometry and flow patterns, enabling real‐time imaging of clot formation under controlled injury.
Yunduo Charles Zhao   +14 more
wiley   +1 more source

Laser Ultrasound Super‐Resolution Imaging for Multi‐Parametric Non‐Invasive Volumetric Characterization of Brain Cancer

open access: yesAdvanced Science, EarlyView.
Laser ultrasound super‐resolution imaging (LUSSI) leverages laser‐generated ultrasound for functional 3D transcranial imaging of brain tumor vasculature. Combined with optoacoustic tomography, it is demonstrated in a glioblastoma model, revealing structural abnormalities, compressed vessels, hemorrhages, and hypoxic regions.
Daniil Nozdriukhin   +4 more
wiley   +1 more source

Continuous Suppression of Pathological Retinal and Choroidal Neovascularization in Cynomolgus Monkeys via Noninvasive Ophthalmic Delivery of a Novel Anti‐VEGFA Nanobody and Proprietary Penetratin Analog Formulation

open access: yesAdvanced Science, EarlyView.
Pathological retinal/choroidal neovascularization drives vision loss in DR and AMD. Current anti‐VEGF injections, while effective, require invasive, frequent administration. Pene/LQ015, is developed a novel topical anti‐VEGFA nanobody formulation achieving therapeutic intraocular levels through penetratin analog‐enhanced delivery.
Chong Chen   +12 more
wiley   +1 more source

Ocular Ischemic Syndrome: The Red Eye Revisited

open access: yesJournal of Clinical Interventional Radiology ISVIR, 2020
Ocular ischemic syndrome (OIS) is a vision-threatening condition due to inadequate arterial supply to the orbital contents. OIS is commonly described secondary to severe carotid artery stenosis and most often observed by ophthalmologists.
Sathya Narayanan   +4 more
doaj   +1 more source

FMO2 Promotes Angiogenesis via Regulation of N‐Acetylornithine

open access: yesAdvanced Science, EarlyView.
This study identifies flavin‐containing monooxygenase 2 (FMO2) as a novel proangiogenic regulator in endothelial cells. Targeted FMO2 ablation impairs vessel sprouting, whereas its compensation potently enhances angiogenesis. Metabolomics and single‐cell sequencing reveal that FMO2 drives vascular growth via the N‐acetylornithine/ATF3/NOTCH1 axis ...
Jingyi Wang   +15 more
wiley   +1 more source

Microglia Drive Peripapillary Vascular Density Reduction in Normal Tension Glaucoma by Regulating the Rpl17/Stat5b/Apoa1 Axis

open access: yesAdvanced Science, EarlyView.
This study revealed that E50K mutant microglia drive retinal peripapillary vascular density reduction in NTG via the Rpl17/Stat5b/Apoa1 axis and identified Apoa1 as a novel suppressor of retinal vascular endothelial cells. These findings identify a potential therapeutic target for glaucoma and support the clinical potential of EA for protecting RGCs ...
Di Zhang   +9 more
wiley   +1 more source

Multimodal Imaging Reveals Cerebral Microcirculation Dynamics and Mechanisms in Mouse Central Nervous System After Intranasal Infection With Recombinant Pseudorabies Virus

open access: yesAdvanced Science, EarlyView.
Multi‐modality imaging strategy applied to PRV‐induced central nervous system infection enables dynamic visualization of cerebrovascular dysfunction, including hyperemia, hypoperfusion, and vascular remodeling. These changes are linked to microglial activation and impaired angiogenesis, providing mechanistic insight into PRV neuropathogenesis and ...
Shuting Ling   +13 more
wiley   +1 more source

Hypo-attenuating Berry Sign as a Novel Imaging Marker of Ruptured Aneurysm in Patients with Subarachnoid Hemorrhage; a Diagnostic Accuracy Study

open access: yesArchives of Academic Emergency Medicine
Introduction: Aneurysmal subarachnoid hemorrhage (SAH) constitutes a life-threatening condition, and identifying the ruptured aneurysm is essential for further therapy. This study aimed to evaluate the diagnostic accuracy of hypo-attenuating berry sign (
Xin-Wei zhou   +9 more
doaj   +1 more source

“CONTRAST” STUDY: COMPARİSİON OF NEPHROPROTECTİVE THREE PROTOCOLS: ACETYLCYSTEİNESODİUM BİCARBONATE-THEOPHYLLİNE, TO PREVENT CONTRAST-İNDUCED NEPHROPATHY

open access: yesРоссийский кардиологический журнал, 2014
Aim. The purpose of this study was to compare three prophylactic regimens, sodium-bicarbonate based hydration, sodium-bicarbonate + N-acetylcysteine (NAC), and sodium-bicarbonate + NAC + theophylline, for the prevention of contrast induced nephropathy ...
Ilker Murat Caglar   +6 more
doaj   +1 more source

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