Effect of iron deficiency on placental cytokine expression and fetal growth in the pregnant rat

Lorraine Gambling, Zehane Charania, Lisa Hannah, Christos Antipatis, R.g. Lea, Harry J McArdle

    Research output: Contribution to journalArticle

    54 Citations (Scopus)

    Abstract

    Iron deficiency anemia is the most common nutritional disorder in the world. Anemia is especially serious during pregnancy, with deleterious consequences for both the mother and her developing fetus. We have developed a model to investigate the mechanisms whereby fetal growth and development are affected by maternal anemia. Weanling rats were fed a control or iron-deficient diet before and throughout pregnancy and were killed at Day 21. Dams on the deficient diet had lower hematocrits, serum iron concentrations, and liver iron levels. Similar results were recorded in the fetus, except that the degree of deficiency was markedly less, indicating compensation by the placenta. No effect was observed on maternal weight or the number and viability of fetuses. The fetuses from iron-deficient dams, however, were smaller than controls, with higher placental:fetal ratios and relatively smaller livers. Iron deficiency increased levels of tumor necrosis factor alpha (TNFalpha) only in the trophoblast giant cells of the placenta. In contrast, levels of type 1 TNFalpha receptor increased significantly in giant cells, labyrinth, cytotrophoblast, and fetal vessels. Leptin levels increased significantly in labyrinth and marginally (P = 0.054) in trophoblast giant cells. No change was observed in leptin receptor levels in any region of the placentas from iron-deficient dams. The data show that iron deficiency not only has direct effects on iron levels and metabolism but also on other regulators of growth and development, such as placental cytokines, and that these changes may, in part at least, explain the deleterious consequences of maternal iron deficiency during pregnancy.
    Original languageEnglish
    Pages (from-to)516-23
    Number of pages8
    JournalBiology of Reproduction
    Volume66
    Issue number2
    Publication statusPublished - 1 Feb 2002

    Fingerprint

    Fetal Development
    Iron
    Cytokines
    Trophoblasts
    Fetus
    Giant Cells
    Placenta
    Mothers
    Inner Ear
    Growth and Development
    Pregnancy
    Anemia
    Tumor Necrosis Factor-alpha
    Nutrition Disorders
    Receptors, Tumor Necrosis Factor, Type I
    Diet
    Leptin Receptors
    Iron-Deficiency Anemias
    Liver
    Leptin

    Keywords

    • Animals
    • Antigens, CD
    • Blood Cell Count
    • Body Weight
    • Cytokines
    • Diet
    • Embryonic and Fetal Development
    • Female
    • Fertility
    • Hematocrit
    • Immunohistochemistry
    • Iron
    • Leptin
    • Litter Size
    • Liver
    • Placenta
    • Pregnancy
    • Rats
    • Receptors, Tumor Necrosis Factor
    • Receptors, Tumor Necrosis Factor, Type I
    • Spectrophotometry, Atomic
    • Tumor Necrosis Factor-alpha

    Cite this

    Gambling, L., Charania, Z., Hannah, L., Antipatis, C., Lea, R. G., & McArdle, H. J. (2002). Effect of iron deficiency on placental cytokine expression and fetal growth in the pregnant rat. Biology of Reproduction, 66(2), 516-23.

    Effect of iron deficiency on placental cytokine expression and fetal growth in the pregnant rat. / Gambling, Lorraine; Charania, Zehane; Hannah, Lisa; Antipatis, Christos; Lea, R.g.; McArdle, Harry J.

    In: Biology of Reproduction, Vol. 66, No. 2, 01.02.2002, p. 516-23.

    Research output: Contribution to journalArticle

    Gambling, L, Charania, Z, Hannah, L, Antipatis, C, Lea, RG & McArdle, HJ 2002, 'Effect of iron deficiency on placental cytokine expression and fetal growth in the pregnant rat', Biology of Reproduction, vol. 66, no. 2, pp. 516-23.
    Gambling, Lorraine ; Charania, Zehane ; Hannah, Lisa ; Antipatis, Christos ; Lea, R.g. ; McArdle, Harry J. / Effect of iron deficiency on placental cytokine expression and fetal growth in the pregnant rat. In: Biology of Reproduction. 2002 ; Vol. 66, No. 2. pp. 516-23.
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    T1 - Effect of iron deficiency on placental cytokine expression and fetal growth in the pregnant rat

    AU - Gambling, Lorraine

    AU - Charania, Zehane

    AU - Hannah, Lisa

    AU - Antipatis, Christos

    AU - Lea, R.g.

    AU - McArdle, Harry J

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    AB - Iron deficiency anemia is the most common nutritional disorder in the world. Anemia is especially serious during pregnancy, with deleterious consequences for both the mother and her developing fetus. We have developed a model to investigate the mechanisms whereby fetal growth and development are affected by maternal anemia. Weanling rats were fed a control or iron-deficient diet before and throughout pregnancy and were killed at Day 21. Dams on the deficient diet had lower hematocrits, serum iron concentrations, and liver iron levels. Similar results were recorded in the fetus, except that the degree of deficiency was markedly less, indicating compensation by the placenta. No effect was observed on maternal weight or the number and viability of fetuses. The fetuses from iron-deficient dams, however, were smaller than controls, with higher placental:fetal ratios and relatively smaller livers. Iron deficiency increased levels of tumor necrosis factor alpha (TNFalpha) only in the trophoblast giant cells of the placenta. In contrast, levels of type 1 TNFalpha receptor increased significantly in giant cells, labyrinth, cytotrophoblast, and fetal vessels. Leptin levels increased significantly in labyrinth and marginally (P = 0.054) in trophoblast giant cells. No change was observed in leptin receptor levels in any region of the placentas from iron-deficient dams. The data show that iron deficiency not only has direct effects on iron levels and metabolism but also on other regulators of growth and development, such as placental cytokines, and that these changes may, in part at least, explain the deleterious consequences of maternal iron deficiency during pregnancy.

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    KW - Placenta

    KW - Pregnancy

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    KW - Receptors, Tumor Necrosis Factor

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