Advertisement

Transient Hypothyroidism in Infants due to Maternal TSH-Receptor Blocking Antibodies-Character of Their IgG and Long-Term Prognosis of Their Infants

  • Nobuo Matsuura
  • Junji Konishi
  • Kenji Fujieda
  • Kenji Yuri
  • Shohei Harada
  • Kanji Kasagi
  • Jasuhiro Iida
  • Machiko Endo
  • Yutaka Yamada
Part of the NATO ASI Series book series (NSSA, volume 161)

Abstract

Transient neonatal hypothyroidism in infants born to mothers with chronic thyroidism, first reported in 1960 by Sutherland et al.l), has been established as an important diseases entity in the newborn period. Transplacental transfer of TSH-receptor blocking antibodies has been defined as the cause of the disease.) Although similar cases have been reported since then,3) 4) the clinical features, as well as the prognosis of each case, varied greatly. That is, most of infants developed normally; however, some infants were physically, mentally or emotionally retarded in spite of intensive treatment during the newborn period,1) and their condition was quite different from that found in congenital hypothyroidism. It is not clear whether the difference was due to the nature of TSH-receptor blocking antibodies in the mother or to the severity of thyroid suppression during the fetal and newborn periods. It was suggested that the IgG in the mother’s serum not only inhibited TSH binding to its receptor, but also blocked TSH-stimulated cAMP response, TSH-stimulated iodine uptake, organification and 3H-thymidine incorporation into DNA in cultured thyroid cells: that is, it blocked post-receptor processes.4) The purposes of this paper are twofold: 1) To study more precise mechanism and to evaluate the possible involvement of GTP-binding protein of the inhibition of adenylate cyclase activities using porcine thyroid cells. 2) To establish a basis for the long-term prognosis of these patients, particularly of two of the sibling sets, whose mothers were once hypothyroid and were euthyroid during pregnancy.

Keywords

Adenylate Cyclase Activity Congenital Hypothyroidism cAMP Accumulation Newborn Period Chronic Thyroiditis 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1).
    Sutherland, J.M.,•Esselborn, V.M., Burket, R.L., et al. 1960: Familial nongoitrous cretinism apparently due to maternal antithyroid antibody. Report of a family. N. Engl. J. Med., 263:-336.Google Scholar
  2. 2).
    Matsuura, N., Yamada, Y., Nohara, Y., et al; 1980: Familial neonatal transient hypothyroidism due to maternal TSH-binding inhibitor immunoglobulins. N. Engl. J. Med., 303: 738.Google Scholar
  3. 3).
    Iseki, M., Shimizu, M., Oikawa, T., et al. 1983: Sequential serum measurements of thyrotropin binding inhibitor immunoglobulin G in transient familial neonatal hypothyroidism. J. Clin. Endocrinol. Metab., 57: 384.Google Scholar
  4. 4).
    Takaku, N., Mori, T., Koizumi, Y., et al, 1984: Transient neonatal hypothyroidism due to maternal immunoglobulins that inhibit thyrotropin-binding and post-receptor processes. J. Clin. Endocrinol. Metab., 59: 142.Google Scholar
  5. 5).
    Southgate, K., Cregh, F., Teece, M., et al., 1984: A receptor assay for the measurement of TSH receptor antibodies in unextracted serum. Clin. Endocrinol, 20: 539.Google Scholar
  6. 6).
    Konishi, J., Iida, Y., Endo, K., et al, 1983: Inhibition of thyrotropin-induced adenosine 3’,5’-monophosphate increase by immunoglobulins from patients with primary myxedema. J. Clin. Endocrinol. Metab., 57: 544.Google Scholar
  7. 7).
    Murayama, T., Ui, M., 1987: Possible involvement of a GTP-binding protein, the substrate of islet-activating protein, in receptor-mediated signaling responsible for cell proliferation. J. Biol. chem., 262: 1 2463.Google Scholar
  8. 8).
    Rovet, J., Ehrich, R., Sorbara, D. 1987: intellectual outcome in children with fetal hypothyroidism. J. Pediatr., 110: 700.Google Scholar
  9. 9).
    Ekins, R., 1985: Roles of serum thyroxine-binding proteins and maternal thyroid hormones in fetal developement. Lancet, I: 1129.Google Scholar

Copyright information

© Plenum Press, New York 1989

Authors and Affiliations

  • Nobuo Matsuura
    • 1
  • Junji Konishi
    • 2
  • Kenji Fujieda
    • 1
  • Kenji Yuri
    • 1
  • Shohei Harada
    • 1
  • Kanji Kasagi
    • 2
  • Jasuhiro Iida
    • 2
  • Machiko Endo
    • 3
  • Yutaka Yamada
    • 3
  1. 1.Department of PediatricsHokkaido University School of MedicineSapporoJapan
  2. 2.Department of Nuclear MedicineUniversity of KyotoKyotoJapan
  3. 3.Pediatric Clinic Hakodate Chuo HospitalHakodateJapan

Personalised recommendations