Thyroid hormones in fetal growth and prepartum maturation
- 1Department of Physiology, Development and Neuroscience, University of Cambridge, Physiology Building, Downing Street, Cambridge CB2 3EG, UK
2Department of Biological and Medical Sciences, Oxford Brookes University, Oxford OX3 0BP, UK
- Correspondence should be addressed to A L Fowden; Email: alf1000{at}cam.ac.uk
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Figure 1
Schematic diagram showing the factors affecting the bioavailability of thyroid hormones in the fetus, placenta, and mother. TRH, thyrotropin-releasing hormone; TSH, thyroid-stimulating hormone; T4, thyroxine; T3, triiodothyronine; rT3, reverse T3; T2, diiodothyronine; S, sulfated; D1, D2, and D3, deiodinases; OATP, organic anion transporters; LAT1 and LAT2, l-type amino acid transporters 1 and 2; MCT8 and MCT10, monocarboxylate transporters 8 and 10.
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Figure 2
Schematic diagram showing the role of the thyroid hormones in the growth and development of the fetus during the second half of gestation. T4, thyroxine; T3, triiodothyronine; BAT, brown adipose tissue; ANS, autonomic nervous system; ACE, angiotensin-converting enzyme; UCP, uncoupling protein.
- © 2014 Society for Endocrinology