Related Experiment Videos
Blood pressure and the menstrual cycle
British Journal of Obstetrics and Gynaecology
|October 1, 1985
Summary
Systolic blood pressure may increase during the luteal phase due to progestogen. However, this effect might be linked to stress responses rather than a direct hypertensive action of progestogen.
Area of Science:
- Reproductive Endocrinology
- Cardiovascular Physiology
Background:
- The menstrual cycle involves hormonal fluctuations, including progestogen, which may influence physiological parameters.
- Previous research suggests exogenous progestogens can have hypertensive effects.
Purpose of the Study:
- To investigate the potential association between menstrual cycle phase and systolic blood pressure in premenopausal women.
- To explore the hypothesis that endogenous progestogen exerts a hypertensive effect.
Main Methods:
- Retrospective analysis of blood pressure data from 207 non-pregnant premenopausal women.
- Comparison of mean systolic blood pressure across different phases of the menstrual cycle.
- A second study was conducted to attempt to replicate the initial findings.
Main Results:
- The first study indicated higher systolic blood pressure during days 17-26 (late luteal phase) compared to other cycle days.
- The second study failed to demonstrate cyclical changes in blood pressure, showing no significant differences.
- Significant differences in mean blood pressure levels were observed between the two studies.
Conclusions:
- The initial finding suggests a possible hypertensive effect of endogenous progestogen.
- The discrepancy between studies may be due to confounding factors like psychological stress.
- Progestogen might modulate stress responses, indirectly affecting blood pressure, rather than having a direct hypertensive action.