Study, 1980
Do the hormones oxytocin and vasopressin change during the menstrual cycle?
In most women these hormones showed no clear change across the cycle. In one woman with PMS symptoms, vasopressin levels were significantly higher after ovulation than before.
What they did
3 women collected 24-hour urine samples at different points in their menstrual cycle. The levels of two hormones, oxytocin and vasopressin, were measured in each sample.
What they found
Two women showed no change in either hormone across cycle phases. One woman with PMS symptoms and a weight gain of 1.5 kg showed significantly higher vasopressin levels after ovulation (39.45 ng/24 h) compared to before ovulation (25.3 ng/24 h).
What it means for you
These hormones do not clearly change through the cycle in most women studied. Only one woman with PMS symptoms showed a change. This study is very small with only 3 women, so firm conclusions cannot be drawn.
3
Women studied
1.5 kg
Weight gain in PMS woman
39.45 ng/24 h
Vasopressin after ovulation
About the study
- Original title
- [Urinary elimination of oxytocin and vasopressin measured by radioimmunoassay in different phases of the menstrual cycle in women]
- Authors
- Geelen G, Allevard AM, Jarsaillon E et al.
- Journal
- Comptes rendus des seances de la Societe de biologie et de ses filiales
- Year
- 1980
- Study design
- Study
- Participants
- 3
- Read the paper
- https://pubmed.ncbi.nlm.nih.gov/6446354/