Abstract
OBJECTIVE: To study the association of the inflammatory markers serum amyloid A (SAA) and C-reactive protein (CRP) with retinal microvascular parameters in hypertensive individuals with and without type 2 diabetes.
RESEARCH DESIGN AND METHODS: This cross-sectional analysis was a substudy in 711 patients (159 with and 552 without diabetes) of the Anglo-Scandinavian Cardiac Outcomes Trial (ASCOT) based on digital 30-degree images of superior and inferior temporal retinal fields.
RESULTS: SAA was associated with arteriolar length-to-diameter ratio positively in nondiabetic patients (P(trend)= 0.028) but negatively in diabetic patients (P(trend)= 0.005). The difference was unlikely to be a chance finding (P = 0.007 for interaction). Similar results were found for the association of SAA with arteriolar tortuosity (P = 0.05 for interaction). Associations were less pronounced for CRP and retinal parameters.
CONCLUSIONS: Inflammatory processes are differentially involved in retinal microvascular disease in diabetic compared with nondiabetic hypertensive individuals.
Original language | English |
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Pages (from-to) | 1098-1100 |
Number of pages | 3 |
Journal | Diabetes Care |
Volume | 32 |
Issue number | 6 |
DOIs | |
Publication status | Published - Jun 2009 |
Externally published | Yes |
Keywords
- C-Reactive Protein/metabolism
- Cross-Sectional Studies
- Diabetes Complications/epidemiology
- Europe/epidemiology
- Humans
- Hypertension/complications
- Microcirculation/physiology
- Retinal Vessels/pathology
- Serum Amyloid A Protein/analysis
- United Kingdom/epidemiology