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Hypothyroxinemia Induced by Mild Iodine Deficiency Deregulats Thyroid Proteins during Gestation and Lactation in Dams

Author

Listed:
  • Wei Wei

    (Department of Occupational and Environmental Health, School of Public Health, China Medical University, 92 North 2nd Road, Shenyang 110001, China
    Liaoning Provincial Key Laboratory of Endocrine Diseases, the First Hospital of China Medical University, Shenyang 110001, China)

  • Yi Wang

    (Department of Occupational and Environmental Health, School of Public Health, China Medical University, 92 North 2nd Road, Shenyang 110001, China
    Liaoning Provincial Key Laboratory of Endocrine Diseases, the First Hospital of China Medical University, Shenyang 110001, China)

  • Jing Dong

    (Department of Occupational and Environmental Health, School of Public Health, China Medical University, 92 North 2nd Road, Shenyang 110001, China
    Liaoning Provincial Key Laboratory of Endocrine Diseases, the First Hospital of China Medical University, Shenyang 110001, China)

  • Yuan Wang

    (Department of Occupational and Environmental Health, School of Public Health, China Medical University, 92 North 2nd Road, Shenyang 110001, China)

  • Hui Min

    (Department of Occupational and Environmental Health, School of Public Health, China Medical University, 92 North 2nd Road, Shenyang 110001, China)

  • Binbin Song

    (Department of Occupational and Environmental Health, School of Public Health, China Medical University, 92 North 2nd Road, Shenyang 110001, China)

  • Zhongyan Shan

    (Liaoning Provincial Key Laboratory of Endocrine Diseases, the First Hospital of China Medical University, Shenyang 110001, China)

  • Weiping Teng

    (Liaoning Provincial Key Laboratory of Endocrine Diseases, the First Hospital of China Medical University, Shenyang 110001, China)

  • Qi Xi

    (Department of Occupational and Environmental Health, School of Public Health, China Medical University, 92 North 2nd Road, Shenyang 110001, China
    Department of Physiology, the University of Tennessee Health Science Center, Memphis, TN 38163, USA)

  • Jie Chen

    (Department of Occupational and Environmental Health, School of Public Health, China Medical University, 92 North 2nd Road, Shenyang 110001, China
    Liaoning Provincial Key Laboratory of Endocrine Diseases, the First Hospital of China Medical University, Shenyang 110001, China)

Abstract

The main object of the present study was to explore the effect on thyroidal proteins following mild iodine deficiency (ID)-induced maternal hypothyroxinemia during pregnancy and lactation. In the present study, we established a maternal hypothyroxinemia model in female Wistar rats by using a mild ID diet. Maternal thyroid iodine content and thyroid weight were measured. Expressions of thyroid-associated proteins were analyzed. The results showed that the mild ID diet increased thyroid weight, decreased thyroid iodine content and increased expressions of thyroid transcription factor 1, paired box gene 8 and Na + /I − symporter on gestational day (GD) 19 and postpartum days (PN) 21 in the maternal thyroid. Moreover, the up-regulated expressions of type 1 iodothyronine deiodinase (DIO1) and type 2 iodothyronine deiodinase (DIO2) were detected in the mild ID group on GD19 and PN21. Taken together, our data indicates that during pregnancy and lactation, a maternal mild ID could induce hypothyroxinemia and increase the thyroidal DIO1 and DIO2 levels.

Suggested Citation

  • Wei Wei & Yi Wang & Jing Dong & Yuan Wang & Hui Min & Binbin Song & Zhongyan Shan & Weiping Teng & Qi Xi & Jie Chen, 2013. "Hypothyroxinemia Induced by Mild Iodine Deficiency Deregulats Thyroid Proteins during Gestation and Lactation in Dams," IJERPH, MDPI, vol. 10(8), pages 1-13, August.
    • Handle: RePEc:gam:jijerp:v:10:y:2013:i:8:p:3233-3245:d:27683
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