Circadian rhythm of TSH secretion during TSH-suppression therapy

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Abstract


Тo investigate circadian rhythm of TSH secretion during TSH-suppression therapy. 17 patients taking TSH-suppression therapy, at the age of 18–60 years have been included. Measurements of serum TSH were performed at8.00–9.00h and 14.00–16.00 during the day. The median of TSH concentrations in the morning was 0,016mU/l, at the daytime – 0.015mU/l. The amplitude of TSH circadian variability reached 200% (Me – 19%). At boundary TSH value stability of TSH-suppression can be broken. As specifying action research in similar situations can be measurement of serum TSH in other time.

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References

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