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Pituitary

, Volume 22, Issue 2, pp 170–178 | Cite as

Increased androgen secretion in patients with prolactinomas: the impact of altered HPA function

  • Yosra Moria
  • Rouba Kortbawi
  • Nadine EL-Asmar
  • Baha M. ArafahEmail author
Article
  • 35 Downloads

Abstract

Background and objectives

Earlier studies suggested that hyperprolactinemia was associated with elevated serum DHEA-S levels. The importance of DHEA-S measurements in the diagnosis of adrenal insufficiency prompted us to assess adrenal androgen levels in hyperprolactinemic subjects with normal or impaired function.

Methods

Prospective study including 122 medically treated and 26 surgically patients with prolactinomas. Serum PRL, DHEA and DHEA-S levels were measured before and repeatedly after cabergoline therapy and also in the perioperative period of surgically treated patients.

Results

Serum PRL levels decreased (P < 0.001) in all 101 medically treated patients with normal HPA function from 728.3 ± 1507 reaching 29.1 ± 39 and 14.9 ± 24.4 µg/L at 3 and 12 months, respectively. Concurrently serum DHEA-S levels decreased (P < 0.001) from 245.9 ± 196 to 216.2 ± 203.3 and to 169.7 ± 121.1 µg/dl at 3 and 12 months, respectively. These effects were reversed in 19 patients who discontinued treatment and were re-demonstrated after therapy resumption. Among the 22 surgically treated patients with normal HPA, peri-operative PRL levels decreased rapidly (P < 0.001) with a parallel decline in serum DHEA-S levels (P = 0.03). Strong correlations were noted between PRL and DHEA-S decrements observed with medical or surgical therapy. Medically (n = 21) and surgically (n = 4) patients with impaired HPA function had very low DHEA-S values that were unchanged despite marked reductions in PRL secretion.

Conclusion

Hyperprolactinemia is associated with a reproducible and reversible increase in serum DHEA-S that was observed in medically- and surgically-treated patients with normal HPA function. Thus, a normal age- and gender-adjusted serum DHEA-S level continues to imply normal HPA function even among hyperprolactinemic subjects.

Keywords

Prolactinoma DHEA-S Hypothalamic–pituitary–adrenal axis 

Notes

Funding

This work was funded by local/departmental grant.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Ethical approval

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

Informed consent

Informed consent was obtained from all individual participants included in the study.

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • Yosra Moria
    • 1
  • Rouba Kortbawi
    • 1
  • Nadine EL-Asmar
    • 1
  • Baha M. Arafah
    • 1
    Email author
  1. 1.Division of Clinical and Molecular EndocrinologyUH Cleveland Medical Center and Case Western UniversityClevelandUSA

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