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[The corpus luteum and progesterone secretion].

D Collin1, R Gandar

  • 1Service de Gynécologie-Obstétrique, Centre Hospitalier Général, Haguenau.

Revue Francaise De Gynecologie Et D'Obstetrique
|October 1, 1991
PubMed
Summary

Luteinizing hormone (LH) and progesterone secretion exhibit pulsatility that changes throughout the luteal phase. Progesterone pulsatility emerges in the mid-luteal phase, correlating with LH pulses.

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Area of Science:

  • Reproductive Endocrinology
  • Hormonal Regulation
  • Luteal Phase Dynamics

Background:

  • Luteinizing hormone (LH) pulsatility is established, but progesterone secretion patterns during the luteal phase require further elucidation.
  • Understanding luteal phase hormonal fluctuations is critical for reproductive health assessments.

Purpose of the Study:

  • To characterize the pulsatile secretion of progesterone during the human luteal period.
  • To analyze the relationship between LH and progesterone pulsatility across different luteal phases.

Main Methods:

  • Analysis of LH and progesterone secretion patterns during the early (EL), mid (ML), and late (LL) luteal phases.
  • Measurement of pulse frequency and amplitude for both hormones.
  • Correlation analysis between LH and progesterone pulse timing.

Main Results:

  • Progesterone secretion lacks pulsatility during the EL phase.
  • The ML phase shows correlated pulses of LH and progesterone (7-14 pulses/24h).
  • The LL phase exhibits decreased frequency and amplitude of both LH and progesterone pulses.

Conclusions:

  • Progesterone pulsatility is a distinct characteristic of the mid and late luteal phases.
  • LH and progesterone pulse dynamics vary significantly across the luteal period.
  • Clinical interpretation of progesterone levels, especially below 10 ng/ml, requires careful consideration of sampling timing and phase.

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