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Ibuprofen improves oxygen-induced retinopathy in a mouse model
Jotishna Sharma1, Sybil M Barr, Yixun Geng
1Department of Pediatrics, Division of Neonatology, Georgetown University Children's Medical Center, Washington, DC, USA.
Current Eye Research
|October 17, 2003
Summary
Ibuprofen significantly reduces the severity of retinopathy of prematurity in a mouse model. This nonsteroidal anti-inflammatory drug offers a promising therapeutic avenue for preventing vision impairment in premature infants.
Area of Science:
- Ophthalmology
- Neonatology
- Pharmacology
Background:
- Retinopathy of prematurity (ROP) is a leading cause of vision loss in premature infants.
- It is characterized by abnormal blood vessel development in the retina.
- Current treatments have limitations, necessitating exploration of novel therapeutic agents.
Purpose of the Study:
- To evaluate the efficacy of ibuprofen in mitigating oxygen-induced retinopathy in a mouse model.
- To test the hypothesis that ibuprofen administration during the critical developmental window can prevent ROP.
Main Methods:
- C57BL6 mice pups were exposed to hyperoxia (75% oxygen) from postnatal day 7 to 12.
- Ibuprofen was administered subcutaneously (40 mg/kg/day) during the oxygen exposure period.
- Retinopathy severity was assessed using retinal flat mounts and histological analysis of retinal sections.
Main Results:
- Ibuprofen treatment significantly reduced retinopathy scores compared to controls (p < 0.005).
- Quantification of extra-retinal nuclei showed a significant decrease in the ibuprofen group (p < 0.005).
- Ibuprofen administration did not adversely affect animal growth.
Conclusions:
- Ibuprofen effectively ameliorates oxygen-induced retinopathy in a preclinical model.
- Concurrent administration during the injury phase is crucial for its beneficial effects.
- Ibuprofen presents a potential therapeutic strategy for ROP without compromising normal retinal development.