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Published on: July 11, 2013
Variable effects of beta-carotene therapy in a child with erythropoietic protoporphyria
Ramin Alemzadeh1, Tammy Feehan
1Department of Pediatrics, University of Tennessee Medical Center, Knoxville, Tennessee, USA. ralemzad@mcw.edu
Insights
High-dose beta-carotene therapy offers photoprotection for erythropoietic protoporphyria (EPP), improving sun tolerance in patients. This treatment showed significant benefits for skin lesions in a pediatric case study.
Area of Science:
- Biochemistry
- Dermatology
- Genetics
Background:
- Erythropoietic protoporphyria (EPP) is a genetic disorder of heme biosynthesis.
- Patients with EPP experience photosensitivity due to protoporphyrin accumulation.
Observation:
- A 5-year-old female with EPP presented with recurrent facial blisters and sun-exposed skin lesions.
- Standard sunblock and photoprotection measures provided only moderate relief.
Findings:
- Treatment with high-dose beta-carotene (90-180 mg/day) over three months led to marked improvement in facial and forearm lesions.
- A modest improvement was observed in lesions on the patient's hands.
Implications:
- High-dose beta-carotene may serve as an effective photoprotective agent for EPP.
- Further research is warranted to optimize beta-carotene dosage and assess long-term efficacy in EPP management.
Unlabelled:
Erythropoietic protoporphyria (EPP) is an inborn error of heme biosynthesis with high levels of protoporphyrin in red cells and is characterized by mild to moderate photosensitivity. High-dose beta-carotene therapy has been reported to afford photoprotection in patients with EPP. We report the case of a 5-year-old Caucasian female with EPP who presented with a long-standing 3-year history of recurrent facial blisters and erythematous swelling and lesions of other sun-exposed areas of the skin. She was treated with a topical sunblocker (PreSun Ultra-SP45) but continued to show moderate to severe photosensitivity despite 3 months (March to May) of vigorous photoprotection. She was then started on increasing doses of beta-carotene (90-180 mg/day) over a period of 3 months (June to September) which resulted in a marked improvement of both facial and forearm lesions, but only modest improvement in her hand lesions.
Conclusion:
High-dose beta-carotene appears to provide photoprotection in erythropoietic protoporphyria, resulting in improved but highly variable tolerance to sunlight.
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