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Nutrient intake in lysinuric protein intolerance
L M Tanner1, K Näntö-Salonen, J Venetoklis
1Department of Pediatrics, University of Turku, Kiinamyllynkatu 4-8, 20520, Turku, Finland. lamaer@utu.fi
Journal of Inherited Metabolic Disease
|June 26, 2007
Summary
Lysinuric protein intolerance (LPI) patients face nutritional deficiencies due to restricted diets. Supplementation and monitoring are crucial for managing LPI symptoms and improving health outcomes.
Area of Science:
- Biochemistry
- Genetics
- Nutritional Science
Background:
- Lysinuric protein intolerance (LPI) is a rare autosomal recessive disorder affecting cationic amino acid transport.
- Defective transport leads to low plasma arginine, ornithine, and lysine, impairing urea cycle function and nitrogen tolerance.
- This can cause hyperammonaemia and aversions to protein-rich foods.
Purpose of the Study:
- To investigate potential nutritional deficiencies in LPI patients.
- To analyze dietary intake and identify specific nutrient risks.
Main Methods:
- Analysis of 77 three- to four-day food records from 28 Finnish LPI patients (aged 1.5-61 years).
Main Results:
- LPI patients are at high risk for multiple nutritional deficiencies.
- Diets were significantly deficient in calcium, vitamin D, iron, and zinc.
- Restricted diets may contribute to LPI symptoms.
Conclusions:
- Individualized nutritional supplementation is essential for LPI management.
- Regular monitoring of dietary intake is critical for LPI patients.
- Addressing nutritional deficits can help mitigate LPI symptoms.
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