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Related Experiment Videos

High serum progesterone in hyperthyroid men with Graves' disease.

K Nomura1, H Suzuki, M Saji

  • 1Department of Medicine, Tokyo Women's Medical College, Japan.

The Journal of Clinical Endocrinology and Metabolism
|January 1, 1988
PubMed
Summary

Elevated progesterone levels were observed in men with hyperthyroidism. These levels decreased with treatment, suggesting progesterone’s role in hyperthyroid-related gynecomastia.

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Area of Science:

  • Endocrinology
  • Reproductive biology

Background:

  • Hyperthyroidism, particularly Graves' disease, is associated with gynecomastia.
  • The exact mechanisms underlying gynecomastia in hyperthyroid men are not fully understood.

Purpose of the Study:

  • To investigate serum progesterone levels in men with hyperthyroidism.
  • To explore the potential role of progesterone in the development of gynecomastia in this population.

Main Methods:

  • Serum progesterone levels were measured in five male patients diagnosed with hyperthyroidism due to Graves' disease.
  • Hormone levels were assessed before and during treatment with antithyroid drugs.

Main Results:

  • All participants exhibited elevated serum progesterone levels prior to treatment.

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  • Serum progesterone concentrations decreased in conjunction with the normalization of thyroid hormone levels during treatment.

    • Conclusions:

    • The findings suggest a potential link between elevated progesterone and gynecomastia in men with hyperthyroidism.
    • Progesterone may contribute to estrogen-induced mammary gland growth, exacerbating gynecomastia in this condition.