Mutations in the hereditary haemochromatosis gene HFE in professional endurance athletes. Issue 4 (23rd July 2004)

• Record Type: Journal Article
• Authors: Chicharro, J L; Hoyos, J; Gómez-Gallego, F; Villa, J G; Bandrés, F; Celaya, P; Jiménez, F; Alonso, J M; Córdova, A; Lucia, A
• Is Part Of: British journal of sports medicine. Volume 38:Issue 4(2004)
• Page Start: 418
• Page End: 421
• Publication Date: 2004-07-23
• Subjects: iron -- transferrin saturation -- ferritin -- gene mutation -- endurance athletes; Sports medicine -- Periodicals; 617.1027
• DOI: 10.1136/bjsm.2002.003921
• Languages: English
• ISSNs: 0306-3674

Abstract

Abstract : Background: Hereditary haemochromatosis, a disease that affects iron metabolism, progresses with a greater or lesser tendency to induce iron overload, possibly leading to severe organ dysfunction. Most elite endurance athletes take iron supplements during their active sporting life, which could aggravate this condition. Objective: To determine the prevalence and discuss potential clinical implications of mutations of HFE (the gene responsible for hereditary haemochromatosis) in endurance athletes. Methods: Basal concentrations of iron, ferritin, and transferrin and transferrin saturation were determined in the period before competition in 65 highly trained athletes. Possible mutations in the HFE gene were evaluated in each subject by extracting genomic DNA from peripheral blood. The restriction enzymes Sna BI and Bcl I were used to detect the mutations 845G→A (C282Y) and 187C→G (H63D). Results: Our findings indicate a high prevalence of HFE gene mutations in this population (49.2%) compared with sedentary controls (33.5%). No association was detected in the athletes between mutations and blood iron markers. Conclusions: The findings support the need to assess regularly iron stores in elite endurance athletes.