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Related Experiment Videos

Deoxycorticosterone secretion by the human ovary.

K Nahoul1, L Dehennin, J Salat-Baroux

  • 1Fondation de Recherche en Hormonologie, Fresnes, France.

Journal of Steroid Biochemistry
|July 1, 1988
PubMed
Summary

This study measured progesterone (P), estradiol-17 beta (E2), deoxycorticosterone (DOC), and cortisol (F) in ovarian and peripheral veins. Ovarian veins showed significantly higher steroid levels, particularly near the corpus luteum, suggesting local steroid production.

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Area of Science:

  • Reproductive Endocrinology
  • Steroid Biochemistry

Background:

  • The human corpus luteum produces progesterone (P) and estradiol-17 beta (E2).
  • The production of other steroids, such as deoxycorticosterone (DOC) and cortisol (F), by the corpus luteum is less understood.
  • Simultaneous measurement of multiple steroids in ovarian and peripheral circulation is crucial for understanding their production and interrelationships.

Purpose of the Study:

  • To simultaneously quantify progesterone (P), estradiol-17 beta (E2), deoxycorticosterone (DOC), and cortisol (F) in ovarian and peripheral venous blood.
  • To investigate the concentration gradients of these steroids across the ovary, particularly in relation to the corpus luteum.
  • To explore potential metabolic relationships between these steroids within the ovarian circulation.

Main Methods:

Related Experiment Videos

  • Blood samples were collected from peripheral and ovarian veins of 13 patients undergoing laparotomy or selective catheterization.
  • Steroid concentrations (P, E2, DOC, F) were determined simultaneously using validated analytical methods.
  • Statistical analysis was performed to compare steroid levels between peripheral and ovarian veins and to assess correlations.

Main Results:

  • Significantly higher levels of progesterone (P), estradiol-17 beta (E2), and deoxycorticosterone (DOC) were found in ovarian effluents compared to peripheral blood.
  • The steroid gradients were more pronounced on the side of the ovary containing the corpus luteum.
  • A significant positive correlation was observed between deoxycorticosterone (DOC) gradients and progesterone (P) levels in ovarian effluents, suggesting a metabolic link.

Conclusions:

  • The human corpus luteum actively produces and secretes progesterone (P), estradiol-17 beta (E2), and deoxycorticosterone (DOC) into the ovarian circulation.
  • Deoxycorticosterone (DOC) production by the corpus luteum appears to be metabolically linked to progesterone (P) synthesis.
  • These findings enhance our understanding of steroidogenesis within the human corpus luteum and its contribution to systemic steroid levels.