Complete Blood Cell Count-Derived Inflammation Biomarkers in Men with Age-Related Macular Degeneration

Area of Science:

• Ophthalmology
• Immunology
• Hematology

Background:

• Age-related macular degeneration (AMD) is a leading cause of vision loss.
• Inflammation is implicated in the pathogenesis of AMD.
• Blood count-derived inflammatory biomarkers are increasingly studied for various diseases.

Purpose of the Study:

• To evaluate the diagnostic utility of several blood count-derived inflammation biomarkers in late-stage age-related macular degeneration (AMD).
• To assess the reliability of neutrophil/lymphocyte ratio (NLR), derived NLR (dNLR), platelet/lymphocyte ratio (PLR), monocyte/lymphocyte ratio (MLR), SIRI, and AISI as AMD biomarkers.

Main Methods:

• A case-control study involving 79 men with late-stage AMD and 79 age-matched male cataract controls.
• Analysis of blood samples to calculate various inflammatory indexes including NLR, dNLR, PLR, MLR, SIRI, and AISI.
• Receiver operating characteristics (ROC) curve analysis to determine predictive ability.

Main Results:

• Patients with AMD exhibited significantly lower median values for white blood cells, monocytes, neutrophils, platelets, and mean platelet volume (MPV).
• Only the aggregate inflammation severity index (AISI) was significantly lower in AMD patients compared to controls.
• ROC analysis indicated a poor ability of AISI and MPV to predict AMD.

Conclusions:

• The studied inflammation biomarkers (NLR, dNLR, PLR, MLR, SIRI, AISI) are not reliable indicators for diagnosing AMD in men.
• Larger-scale investigations are required to validate these preliminary findings and explore other potential biomarkers.