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Pentoxifylline treatment for protecting diabetic retinopaty in children with type 1 diabetes
Murat Baykara1, Mehmet Emre Atabek, Beray Selver Eklioglu
1Department of Radiology, Erciyes University, Kayseri, Turkey.
Insights
Oral pentoxifylline improved retinal microvascular hemodynamics in children with type 1 diabetes. This treatment may offer protection against diabetic retinopathy and atherosclerosis risk factors.
Area of Science:
- Ophthalmology
- Endocrinology
- Vascular Biology
Background:
- Type 1 diabetes mellitus (DM) poses risks for microvascular complications, including diabetic retinopathy.
- Retinal microvascular dysfunction is a hallmark of diabetic complications.
- Assessing interventions to improve retinal hemodynamics in pediatric diabetes is crucial.
Purpose of the Study:
- To evaluate the effect of oral pentoxifylline (PTX) on retinal microvascular hemodynamics in children with type 1 DM.
- To determine if PTX administration can alter key hemodynamic parameters in the central retinal artery (CRA).
Main Methods:
- A randomized controlled trial involving 56 children with type 1 DM.
- Non-invasive ultrasonographic measurements of CRA pulsatility index (PI), resistivity index (RI), peak systolic velocity (PSV), and end diastolic velocity (EDV).
- Comparison of hemodynamic changes after 6 months of pentoxifylline treatment versus a placebo control group.
Main Results:
- Pentoxifylline significantly reduced the pulsatility index (PI) in the central retinal artery (p=0.01).
- While RI, PSV, and EDV showed a trend towards reduction, these changes were not statistically significant.
- Pentoxifylline treatment also led to reduced blood pressure, microalbuminuria, and improved HDL levels.
Conclusions:
- Pentoxifylline demonstrates potential protective effects against diabetic retinopathy in type 1 diabetes.
- The drug may modulate key risk factors associated with atherosclerosis in this patient population.
- Further research is warranted to confirm these findings and explore therapeutic applications.
Objective:
The purpose of this study was to determine whether oral pentoxifylline (PTX) would improve retinal microvascular hemodynamics in children with type 1 diabetes mellitus (DM).
Patients And Methods:
Non-invasive ultrasonographic measurements were made in 56 type 1 diabetic patients. The diabetic patients were matched first in terms of age, diabetes duration, then one individual within each pair was randomized into a pentoxifylline group and a control group. Pentoxifylline was administered for 6 months. We investigated the change of peak systolic velocity (PSV), end diastolic velocity (EDV), pulsatility index (PI), and resistivity index (RI) of central retinal artery (CRA) at 6 months after pentoxifylline. We investigated the relationship between PI, RI and carotide cross-sectional compliance (C-CSC).
Results:
In comparison to changes in CRA measurements between the two groups, the pentoxifylline treatment group had significantly lower PI values (p=0.01). The RI, PSV and EDV were lower in pentoxifylline group but not statistically different. There was a positive correlation between CRA PSV and carotid Vmax (cm/s) (r=0.29, p=0.02) and also C-CSC (r=0.27, p=0.03). In addition, there was a positive correlation between PI and C-CSC (r=0.3, p=0.02). In the pentoxifylline group there was a significant reduction in systolic blood pressure, diastolic blood pressure, microalbuminuria and an increase in HDL level.
Conclusion:
Our results suggest that pentoxifylline may have a protective action for diabetic retinopathy and might modulate risk factors for atherosclerosis in type 1 diabetes.
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