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Nikhil Prasad  Fact checked by:Thailand Medical News Team Mar 17, 2025  5 hours, 39 minutes ago

New Blood Biomarkers Could Help Detect Eye Damage in Diabetic Retinopathy

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New Blood Biomarkers Could Help Detect Eye Damage in Diabetic Retinopathy
Nikhil Prasad  Fact checked by:Thailand Medical News Team Mar 17, 2025  5 hours, 39 minutes ago
Medical News: Scientists Discover Key Biomarkers for Early Detection of Retinal Disease
A groundbreaking study by researchers from Rigshospitalet and the University of Copenhagen in Denmark has identified new blood biomarkers that could revolutionize the early detection of diabetic retinopathy, a serious eye disease caused by diabetes. The study, published in the International Journal of Molecular Sciences, suggests that these biomarkers could help doctors diagnose and monitor retinal damage more efficiently, offering new hope to millions of people at risk of vision loss.


New Blood Biomarkers Could Help Detect Eye Damage in Diabetic Retinopathy

The Silent Threat of Diabetic Retinopathy
Diabetic retinopathy (DR) is one of the leading causes of blindness worldwide, affecting individuals with diabetes as high blood sugar levels gradually damage the blood vessels in the retina. Unfortunately, many patients do not realize they have the disease until significant vision loss occurs. This Medical News report highlights how early detection using blood biomarkers may change the way we approach this condition.
 
In this study, researchers examined 151 adults, including patients with diabetic retinopathy, glaucoma, inherited retinal diseases, and a group of healthy individuals. They focused on three key biomarkers found in blood samples: neurofilament light chain (NFL), glial fibrillary acidic protein (GFAP), and CXC-motif chemokine ligand 13 (CXCL13). Using an advanced technology called single molecule array (SiMoA), scientists were able to measure even the smallest amounts of these proteins in the blood, making this study one of the most precise of its kind.
 
Key Findings of the Study
The results of the study revealed several important discoveries:
 
-NFL Levels as an Indicator of Retinal Damage: Patients with diabetic retinopathy had significantly higher levels of NFL compared to healthy individuals. The more advanced the disease, the higher the levels of this biomarker in their blood. This suggests that NFL could be used to detect retinal damage before symptoms appear.
 
-GFAP and Disease Progression: In diabetes patients without retinal damage, GFAP levels were lower compared to healthy individuals. However, as the disease progressed, GFAP levels increased, indicating its potential role in tracking the worsening of diabetic retinopathy.
 
-CXCL13 and Inflammation: Another biomarker, CXCL13, was linked to inflammation in the retina, particularly in inherited retinal diseases. This discovery could lead to further research into how inflammation contributes to eye diseases and how it can be managed.
 
What This Means for the Future
The findings suggest that a simple blood test could one day be used to detect diabetic retinopathy early, allowing doctors to intervene before irreversible vision loss occurs. Currently, eye exams are the standard method for diagnos ing the disease, but they require specialized equipment and trained professionals. A blood test, on the other hand, would be more accessible and convenient, especially for patients who may not regularly visit an eye specialist.
 
Furthermore, these biomarkers may help doctors differentiate between various retinal diseases, leading to more personalized treatment approaches. For instance, if a patient has elevated NFL levels but normal GFAP levels, it might indicate early diabetic retinopathy rather than another type of retinal disease. This could prevent misdiagnosis and ensure that patients receive the right treatment at the right time.
 
Conclusions
This study offers a promising glimpse into the future of eye disease diagnosis. By identifying key blood biomarkers linked to diabetic retinopathy and other retinal diseases, researchers have opened the door to new, less invasive diagnostic methods. While further studies are needed to confirm these findings and develop practical blood tests, the potential impact is enormous. A simple blood test for retinal diseases could transform eye care, making early detection and treatment more accessible to people worldwide.
 
The study findings were published in the peer-reviewed International Journal of Molecular Sciences.
https://www.mdpi.com/1422-0067/26/6/2625
 
For the latest on Eye Damage in Diabetic Retinopathy, keep on logging to Thailand Medical News.
 
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