Retinol-binding Protein (RbP)

Serum concentrations reflect the synthesis capacity of the liver and may indicate early malnutrition, acute and chronic hepatic disease, advanced chronic renal insufficiency, and cystic fibrosis. Assess nephritic syndrome and protein-losing enteropathy. Due to the short half-life of approximately 12 hours, RBP may be suitable for monitoring the nutritional status and efficacy of parenteral nutrition.1

Responsible for binding and transporting retinol (vitamin A).

1. Haider M, Haider SQ. Assessment of protein-calorie malnutrition. Clin Chem. 1984 Aug; 30(8):1286-1299. PubMed 6430595