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A novel quantitative angiogenesis assay based on visualized vascular organoid.
Angiogenesis
January 2025
Department of Physiology and Pathophysiology, School of Basic Medical Sciences, State Key Laboratory of Vascular Homeostasis and Remodeling, Beijing Advanced Center of Cellular Homeostasis and Aging-Related Diseases, Clinical Stem Cell Research Center, Peking University Third Hospital, Peking University, Beijing, 100191, China.
Angiogenesis describes the sprouting of blood vessels from existing vasculatures and it plays a pivotal role in disease progress such as diabetes, age-related macular degeneration and cancer. However, the most widely used anti-angiogenic agents targeting vascular endothelial growth factor (VEGF) pathway still lacked of specificity and therapeutic efficacy. To establish a method suitable for high-throughput drug screening and faithfully recapitulate the feature of in vivo angiogenesis, we generated a PECAM1-mRuby3-secNluc; ACTA2-EGFP dual reporter human pluripotent stem cell (hPSC) line and utilizing the cell line to establish a visualized and quantifiable in vitro angiogenesis model with stem cell-derived vascular organoid.
View Article and Find Full Text PDFGeographic atrophy and factors associated with disease progression among Medicare Advantage enrollees.
J Manag Care Spec Pharm
January 2025
Humana Healthcare Research, Inc., Louisville, KY.
Background: Geographic atrophy (GA) is a form of advanced age-related macular degeneration (AMD) that can cause irreversible vision impairment and is responsible for approximately 20% of legal blindness in the United States. There is limited real-world evidence assessing health outcomes and health care resource use (HCRU) among individuals with GA.
Objective: To examine the progression from GA without subfoveal involvement (SFI) to GA with SFI, progression to irreversible blindness, and HCRU among older individuals with GA enrolled in Medicare Advantage Prescription Drug (MAPD) plans.
Belzutifan as the Primary Treatment of Bilateral Juxtapapillary Retinal Hemangioblastoma in a Patient With Von Hippel-Lindau Disease.
J Vitreoretin Dis
December 2024
Dartmouth Hitchcock Medical Center, Department of Surgery, Ophthalmology Section, Lebanon, NH, USA.
To describe the efficacy of belzutifan as a treatment for juxtapapillary retinal hemangioblastomas in patients with von Hippel-Lindau disease. A case and its findings were analyzed, and a systematic literature review was conducted using PubMed and Ovid MEDLINE. At a routine follow-up, a 63-year-old woman with a history of von Hippel-Lindau disease and slowly progressive bilateral juxtapapillary retinal hemangioblastomas presented with decreased visual acuity (VA) in the right eye resulting from significant lesion growth and an increase in central macular edema and exudate.
View Article and Find Full Text PDF[Cognitive impairment and age-related eye pathology.].
Adv Gerontol
January 2025
M.M.Krasnov Research Institute of Eye Diseases, 11 A, B, Rossolimo str., Moscow 119021, Russian Federation, e-mail:
In developed countries age-related macular degeneration (AMD) and glaucoma are the most common diseases of old age that cause irreversible blindness. Alzheimer's disease (AD), the most prevalent cause of dementia among older adults, is often associated with AMD and glaucoma. Features of AD include extracellular accumulation of β-amyloid (Aβ) and intracellular deposits of hyperphosphorylated forms of tau-protein.
View Article and Find Full Text PDFMaculopathies: A Systematic Literature Review on Pathophysiology, Public Health, and Treatment.
Cureus
December 2024
Ophthalmology, Ramsay Health Care, Mount Stuart Hospital, Torquay, GBR.
Macular degeneration (MD) is a pathological condition affecting the macula, an area located near the center of the retina. This disease affects individuals of all ages, both children and adults, causing severe visual impairment. Age-related macular degeneration (AMD) is the leading cause of visual loss in the older population while Stargardt disease (SD) is the most common hereditary maculopathy with an autosomal dominant pattern of inheritance.
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