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Wiener klinische Wochenschrift

, Volume 125, Issue 5–6, pp 160–164 | Cite as

Selenium intake and selenium blood levels: a novel food frequency questionnaire

  • Marianne Pestitschek
  • Charlotte Sonneck-Koenne
  • S. R. Zakavi
  • Shuren Li
  • Peter Knoll
  • Siroos Mirzaei
short report

Summary

Aim

The present study was undertaken to estimate the selenium intake of thyroid patients and investigate the possible relation between thyroid abnormalities and the selenium intake.

Methods

The selenium intake through foods and the nutritional habits of thyroid patients in general were analyzed. Total 212 subjects from thyroid outpatient clinic of two state hospitals were interviewed. Among 212 subjects, 21 had no thyroid abnormality and served as controls. A food frequency questionnaire (FFQ) was developed to define the individual selenium intakes. From five different food groups, a total of 15 selenium-rich foods were selected, which are obtainable in Austria. The clinical and nutritional data were analyzed.

Results

Animal products such as milk and meat (pork, beef and poultry) played the most important role for the selenium supply in the Austrian diet. The intake of selenium in 86 % of the total study population was below the estimated average requirement (EAR). The selenium level was higher in euthyroid people compared with hypothyroid patients.

Conclusions

The developed FFQ is a tool to estimate the selenium intake in individuals, as it could be shown in this study. A significant positive correlation between selenium intake and blood selenium level was noted. These results must be confirmed by further studies in larger patient population.

Keywords

Thyroid Selenium Autoimmune thyroid disease Food frequency questionnaire 

Selenaufnahme und Selen-Blutspiegel – ein neu entwickelter Ernährungsfragebogen

Zusammenfassung

Ziel

In der vorliegenden Studie wurde die Beziehung zwischen Schilddrüsenerkrankungen, der individuellen Selenaufnahme und dem Selenspiegel im Vollblut untersucht.

Methodik

Die Einnahme von Selen durch Lebensmittel sowie die Ernährungsgewohnheiten unserer Patienten und Patientinnen der Schilddrüsenambulanz wurden analysiert. 212 Pobanden aus der Schilddrüsenambulanz zweier Krankenhäuser wurden befragt. 21/212 Probanden hatten keine Schilddrüsenerkrankung und dienten als Kontrolle. Ein Ernährungsfragebogen genannt Food Frequency Questionnaire (FFQ) wurde entwickelt, um die individuelle Selenaufnahme zu definieren. Aus fünf verschiedenen Gruppen von Lebensmitteln wurden insgesamt 15 selenreiche Lebensmittel ausgewählt, die in Österreich erhältlich sind. Klinische und ernährungsphysiologische Daten wurden analysiert.

Ergebnisse

Tierische Produkte wie Milch und Fleisch (Schwein, Rind und Geflügel) spielen die wichtigste Rolle für die Selenversorgung in der österreichischen Ernährung. 86  % der Studienpopulation lag bezüglich der Seleneinnahme unter dem so genannten Estimated Average Requirement (EAR), der durchschnittlich geforderten Selenaufnahme. Der Selenspiegel war bei euthyreoten Probanden höher im Vergleich zu hypo-und hyperthyreoten Patientinnen und Patienten.

Schlussfolgerungen

Die Resultate zeigten einen Zusammenhang zwischen dem Selenspiegel und Schilddrüsenfunktionstörungen. Der neu entwickelte Ernährungsfragebogen konnte eine signifikante positive Korrelation zwischen Selenaufnahme über die Ernährung und dem Selenblutspiegel darstellen.

Schlüsselwörter

Schilddrüse Selen Autoimmunthyreopathie Ernährungsfragebogen 

Notes

Conflict of interest

The authors have no conflicts of interest.

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Copyright information

© Springer-Verlag Wien 2013

Authors and Affiliations

  • Marianne Pestitschek
    • 1
    • 2
  • Charlotte Sonneck-Koenne
    • 1
  • S. R. Zakavi
    • 3
  • Shuren Li
    • 4
  • Peter Knoll
    • 1
  • Siroos Mirzaei
    • 1
  1. 1.Institute of Nuclear Medicine with PET-Center, WilhelminenspitalViennaAustria
  2. 2.Department of Nutritional SciencesUniversity of ViennaViennaAustria
  3. 3.Nuclear Medicine Research CenterMashhad University of Medical SciencesMashhadIran
  4. 4.Department of Nuclear MedicineMedical University of ViennaViennaAustria

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