Effect of the Hormonal Contraception on Serum Reverse Triiodothyronine Levels

Pansini, F.; Bassi, P; Ar, Cavallini; Ambrosecchia, R.; Cm, Bergamini; Meduri, P; Bagni, B

doi:10.1159/000298849

Cited by 3 publications

(1 citation statement)

References 6 publications

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“…The concomitant increase observed in circulating free T 3 raises the possibility that fluctuations in protein metabolism and thyroid hormone levels throughout the menstrual cycle are causaly related 20. After the administration of oral contraceptives, the levels of reverse T 3 in the serum are increased, due to the increase in TBG 7,21…”

Section: Introductionmentioning

confidence: 99%

The Hypothalamic‐Pituitary‐Thyroid Axis and the Female Reproductive System

Doufas

Mastorakos

2000

Annals of the New York Academy of Sciences

143

107

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Increasing evidence derived from experimental and clinical studies suggests that the hypothalamic-pituitary-thyroid axis (HPT) and the hypothalamic-pitutitary-ovarian axis (HPO) are physiologically related and act together as a unified system in a number of pathological conditions. The suggestion that specific thyroid hormone receptors at the ovarian level might regulate reproductive function, as well as the suggested influence of estrogens at the higher levels of the HPT axis, seems to integrate the reciprocal relationship of these two major endocrine axes. Both hyper-and hypothyroidism may result in menstrual disturbances. In hyperthyroidism the most common manifestation is simple oligomenorrhea. Anovulatory cycles are very common. Increased bleeding may also occur, but it is rare. Hypothyroidism in girls can cause alterations in the pubertal process; this is usually a delay, but occasionally it can result in pseudoprecocious puberty. In mature women hypothyroidism usually is associated with abnormal menstrual cycles characterized mainly by polymenorrhea, especially anovulatory cycles, and an increase in fetal wastage.

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Section: Introductionmentioning

confidence: 99%