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Increased Level of Serum Hepcidin in Female Adolescent Athletes

Sandström, Göran, Rödjer, Stig, Jacobsson, Stefan, Nelson, Dick, Börjesson, Mats·2018·Clinical Journal of Sport Medicine

Abstract

Objective: To determine the serum hepcidin concentration and standard hematological parameters in a group of female adolescent athletes, compared with a group of nonathlete females. Design: A case–control study. Setting: A senior high school for athletes in Gothenburg, Sweden. Participants: All female athletes (70), at the school were offered to take part. Fifty-six athletes accepted. From a random sample of age-matched nonathletes, 71 students were recruited to the control group. Main Outcome Measures: Iron deficiency (ID) was determined by levels of serum iron, total iron-binding capacity, transferrin saturation (TS), and ferritin. Serum hepcidin was determined by a mass spectrometry method. All samples were taken at least 12 hours after training. Results: The main result was the finding of a significantly elevated serum hepcidin level in the athlete group, 4.7 nmol/L compared with 3.3 nmol/L (P < 0.001) in the nonathlete group. In the athlete group, the serum iron concentration was significantly lower, 14.0 μmol/L compared with 17.6 μmol/L (P = 0.003) in the nonathlete group. No difference was found regarding TS, total iron binding capacity, and ferritin. There was no difference in the occurrence of ID or iron deficiency anaemia (IDA). Conclusions: These findings show an increase in serum hepcidin in a large group of female athletes. The elevated hepcidin levels may affect the iron balance of the athletes, adding to the traditional explanation of dietary intake/iron loss balance.

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Research works printed but not linked: 10

  1. Sandstrom, 2012, Iron deficiency in adolescent female athletes—is iron status affected by regular sporting activity?, Clin J Sport Med., 22, 495, 10.1097/JSM.0b013e3182639522 · DOI · Paper page
  2. Hurrell, 2010, Iron bioavailability and dietary reference values, Am J Clin Nutr., 91, 1461S, 10.3945/ajcn.2010.28674F · DOI · Paper page
  3. Peeling, 2014, Iron status and the acute post-exercise hepcidin response in athletes, PLoS One, 9, e93002, 10.1371/journal.pone.0093002 · DOI · Paper page
  4. Hallberg, 1993, Prevalence of iron deficiency in Swedish adolescents, Pediatr Res., 34, 680, 10.1203/00006450-199311000-00023 · DOI · Paper page
  5. Dahlfors, 2015, Validation of a competitive ELISA assay for the quantification of human serum hepcidin, Scand J Clin Lab Invest., 75, 652
  6. Roecker, 2005, Iron-regulatory protein hepcidin is increased in female athletes after a marathon, Eur J Appl Physiol., 95, 569, 10.1007/s00421-005-0055-y · DOI
  7. Ziemann, 2013, Do high blood hepcidin concentrations contribute to low ferritin levels in young tennis players at the end of tournament season?, J Sports Sci Med., 12, 249
  8. Sim, 2014, A seven day running training period increases basal urinary hepcidin levels as compared to cycling, J Int Soc Sports Nutr., 11, 14, 10.1186/1550-2783-11-14 · DOI
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  10. McClung, 2013, Effects of a 7-day military training exercise on inflammatory biomarkers, serum hepcidin, and iron status, Nutr J., 12, 141, 10.1186/1475-2891-12-141 · DOI

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Metadata

Authors
Sandström, G., Rödjer, S., Jacobsson, S., Nelson, D., & Börjesson, M.
Affiliations
  • Department of Anesthesiology and Intensive Care, Institute of Clinical Sciences, Sahlgrenska University Hospital, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden;
  • Department of Hematology, Sahlgrenska University Hospital, Gothenburg, Sweden;
  • Department of Clinical Chemistry and Transfusion Medicine, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden;
  • Clinical Chemistry, University and Regional Laboratories, Helsingborg, Sweden; and
  • Institute of Neuroscience and Physiology, Institution of Food, Nutrition and Sport Science and Sahlgrenska University Hospital, Östra, Gothenburg, Sweden.
Venue
Clinical Journal of Sport Medicine
Published
2018-03
Volume
28
Issue
2
Pages
180-183
ISSN
1050-642X
Cited by
5
References
1
Language
en

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