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Observational Study
. 2022 Dec 30;44(2):137-144.
doi: 10.1515/hmbci-2022-0065. eCollection 2023 Jun 1.

Distinct urinary progesterone metabolite profiles during the luteal phase

Saman Abdullah  1 , Thomas Bouchard  2 , René Leiva  3   4 , Hans Boehringer  5 , Jean Iwaz  6   7   8   9 , René Ecochard  6   7   8   9
Affiliations
Observational Study

Distinct urinary progesterone metabolite profiles during the luteal phase

Saman Abdullah et al. Horm Mol Biol Clin Investig. .

Abstract

Objectives: During normal menstrual cycles, serum levels of progesterone vary widely between cycles of same woman and between women. This study investigated the profiles of pregnanediol during the luteal phase.

Methods: Data stemmed from a previous multicenter prospective observational study and concerned 107 women (who contributed 326 menstrual cycles). The study analyzed changes in observed cervical mucus discharge, various hormones in first morning urine, and serum progesterone. Transvaginal ultrasonography and cervical mucus helped identifying the day of ovulation. Changes in pregnanediol glucuronide levels during the luteal phase were examined and classified according to the length of that phase, a location parameter, and a scale parameter. Associations between nine pregnanediol glucuronide profiles and other hormone profiles were examined.

Results: Low periovulatory pregnanediol glucuronide levels and low periovulatory luteinizing hormone levels were associated with delayed increases in pregnanediol glucuronide after ovulation. That 'delayed increase profile' was more frequently associated with cycles with prolonged high LH levels than in cycles with rapid pregnanediol glucuronide increases. A 'plateau-like profile' during the luteal phase was associated with longer cycles, cycles with higher estrone-3-glucuronide and pregnanediol glucuronide during the preovulatory phase, and cycles with higher periovulatory pregnanediol glucuronide levels.

Conclusions: Distinct profiles of urinary progesterone levels are displayed during the luteal phase. These profiles relate to early hormone changes during the menstrual cycle. In everyday clinical practice, these findings provide further evidence for recommending progesterone test seven days after the mucus peak day. The search for other correlations and associations is underway.

Keywords: luteal phase; menstrual cycle; ovulation; pregnanediol-3-glucuronide; progesterone.

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