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Survey study, 1984

Does serotonin uptake change during the menstrual cycle in women with premenstrual tension?

Yes, serotonin uptake capacity and serotonin levels were significantly lower during the premenstrual phase. Only 16 women were studied, so results need confirmation in larger groups.

Early or limited evidence 16 women with premenstrual tension

What they did

In 16 women with premenstrual tension, researchers measured serotonin uptake and serotonin levels in blood samples during the premenstrual and postmenstrual phases. They also asked women to report their distress using a standard questionnaire.

What they found

Serotonin uptake capacity was 8.2 +/- 0.9 pmol/min during the premenstrual phase compared to 14.4 +/- 3.2 pmol/min during the postmenstrual phase. Serotonin levels in one type of blood plasma were 23.2% lower and in another type 19.1% lower during the premenstrual phase. Correlations were found between serotonin uptake measurements and some premenstrual symptoms.

What it means for you

Serotonin uptake and levels drop significantly before menstruation, which might explain mood and emotional symptoms of PMS. The study's main limitation is its small size of only 16 women.

8.2 vs 14.4

serotonin uptake premenstrual vs postmenstrual (pmol/min)

23.2%

serotonin level reduction in platelet-rich plasma

19.1%

serotonin level reduction in platelet-poor plasma

About the study

Original title
Serotonin levels and platelet uptake during premenstrual tension
Authors
Taylor DL, Mathew RJ, Ho BT et al.
Journal
Neuropsychobiology
Year
1984
Study design
Survey study
Participants
16

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