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Retinal OCT-Derived Texture Features as Potential Biomarkers for Early Diagnosis and Progression of Diabetic Retinopathy.
Invest Ophthalmol Vis Sci
January 2025
University of Coimbra, Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, Coimbra, Portugal.
Article Synopsis
- Diabetic retinopathy (DR) identification is challenging as it often occurs long after diabetes onset, making early detection crucial for effective management.
- Researchers investigated using texture analysis of optical coherence tomography (OCT) retinal images to identify early retinal changes in diabetic animals that may not yet be clinically visible.
- Results indicated that type 1 diabetes led to significant changes in several texture metrics by 4 weeks post-diabetes induction, correlating with other early indicators of retinal damage such as thinning and inflammation, highlighting the potential of texture analysis for early DR detection.
Therapeutic Potential of Dimethyl Sulfoxide Subconjunctival Injection in a Diabetic Retinopathy Rat Model.
In Vivo
December 2024
Laboratory of Veterinary Ophthalmology, College of Veterinary Medicine, Chungbuk National University, Cheongju, Republic for Korea
Background/aim: Diabetic retinopathy (DR), a complication of diabetes, causes damage to retinal blood vessels and can lead to vision impairment. Persistent high blood glucose levels contribute to this damage, and despite ongoing research, effective treatment options for DR remain limited. Dimethyl sulfoxide (DMSO) has shown anti-inflammatory and antioxidant properties in both in vivo and in vitro studies; however, its potential as an anti-inflammatory agent in the context of DR has not yet been explored.
View Article and Find Full Text PDFComparison of functional, structural and vascular characteristics between dominant and nondominant eyes.
Doc Ophthalmol
December 2024
Department of Ophthalmology, Bilkent City Hospital, Ankara, Turkey.
Purpose: The aim of this study was to compare retinal and optic disc functions as well as vascular structures in dominant eyes (DE) and non-dominant eyes (NDE) among healthy adults using pattern electroretinogram (PERG), optical coherence tomography (OCT) and optical coherence tomography angiography (OCTA) tests.
Methods: Seventy-two eyes of 36 healthy subjects with bilateral visual acuity of 1.0 were included.
Interruption of the visual cycle in a novel animal model induces progressive vision loss resembling Stargardts Disease.
Sci Rep
December 2024
INCI-UPR3212-CNRS, 8 Allée du Général Rouvillois, 67000, Strasbourg, France.
Mutations in the gene ABCA4 coding for photoreceptor-specific ATP-binding cassette subfamily A member 4, are responsible for Stargardts Disease type 1 (STGD1), the most common form of inherited macular degeneration. STGD1 typically declares early in life and leads to severe visual handicap. Abca4 gene-deletion mouse models of STGD1 accumulate lipofuscin, a hallmark of the disease, but unlike the human disease show no or only moderate structural changes and no functional decline.
View Article and Find Full Text PDFRetinal Docosahexaenoic Acid Is Significantly Reduced in Diabetic Humans and Mice: Possible Relationship to Diabetic Retinopathy.
Invest Ophthalmol Vis Sci
December 2024
Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois, United States.
Purpose: The retina contains the highest concentration of the omega 3 fatty acid, docosahexaenoic acid (DHA), in the body. Although epidemiologic studies showed an inverse correlation between the consumption of omega 3 fatty acids and the prevalence of diabetic retinopathy, there are no data showing the effect of diabetes on retinal DHA in humans. In this study, we measured the DHA content of the retina in diabetic and non-diabetic humans as well as mice and determined the effect of diabetes on retinal thickness and function in mice.
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