RT Journal Article T1 Transferrin Isoforms, Old but New Biomarkers in Hereditary Fructose Intolerance. A1 Cano, Ainara A1 Alcalde, Carlos A1 Belanger-Quintana, Amaya A1 Cañedo-Villarroya, Elvira A1 Ceberio, Leticia A1 Chumillas-Calzada, Silvia A1 Correcher, Patricia A1 Couce, María Luz A1 García-Arenas, Dolores A1 Gómez, Igor A1 Hernández, Tomás A1 Izquierdo-García, Elsa A1 Martínez Chicano, Dámaris A1 Morales, Montserrat A1 Pedrón-Giner, Consuelo A1 Petrina Jáuregui, Estrella A1 Peña-Quintana, Luis A1 Sánchez-Pintos, Paula A1 Serrano-Nieto, Juliana A1 Unceta Suarez, María A1 Vitoria Miñana, Isidro A1 de Las Heras, Javier K1 aldolase B K1 biomarker K1 diet K1 fructose K1 hereditary fructose intolerance K1 sialotransferrin profile K1 sorbitol K1 sucrose AB Hereditary Fructose Intolerance (HFI) is an autosomal recessive inborn error of metabolism characterised by the deficiency of the hepatic enzyme aldolase B. Its treatment consists in adopting a fructose-, sucrose-, and sorbitol (FSS)-restrictive diet for life. Untreated HFI patients present an abnormal transferrin (Tf) glycosylation pattern due to the inhibition of mannose-6-phosphate isomerase by fructose-1-phosphate. Hence, elevated serum carbohydrate-deficient Tf (CDT) may allow the prompt detection of HFI. The CDT values improve when an FSS-restrictive diet is followed; however, previous data on CDT and fructose intake correlation are inconsistent. Therefore, we examined the complete serum sialoTf profile and correlated it with FSS dietary intake and with hepatic parameters in a cohort of paediatric and adult fructosemic patients. To do so, the profiles of serum sialoTf from genetically diagnosed HFI patients on an FSS-restricted diet (n = 37) and their age-, sex- and body mass index-paired controls (n = 32) were analysed by capillary zone electrophoresis. We found that in HFI patients, asialoTf correlated with dietary intake of sucrose (R = 0.575, p SN 2077-0383 YR 2021 FD 2021-06-30 LK https://hdl.handle.net/10668/24561 UL https://hdl.handle.net/10668/24561 LA en DS RISalud RD Apr 4, 2025