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Related Experiment Videos

Menopausal hot flushes and plasma beta-endorphins.

R Tepper, A Neri, H Kaufman

    Obstetrics and Gynecology
    |August 1, 1987
    PubMed
    Summary

    During hot flashes in menopause, plasma beta-endorphin levels decrease significantly at onset. Levels then rise rapidly after the hot flash subsides, indicating a potential role for beta-endorphins in managing menopausal symptoms.

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    Area of Science:

    • Endocrinology
    • Menopause Research
    • Neuroscience

    Background:

    • Menopause is associated with various physiological changes.
    • Hot flashes are a common and disruptive symptom of menopause.
    • The neurochemical basis of hot flashes is not fully understood.

    Purpose of the Study:

    • To investigate the relationship between plasma beta-endorphin levels and hot flashes in menopausal women.
    • To determine if beta-endorphin levels change before, during, and after hot flash episodes.

    Main Methods:

    • Plasma beta-endorphin levels were measured in five women experiencing frequent hot flashes.
    • Hot flashes were objectively recorded using finger temperature measurements.
    • Blood samples were collected at various time points relative to hot flash onset.

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    Main Results:

    • Significantly lower plasma beta-endorphin levels were observed at the onset of hot flashes compared to levels 5-20 minutes prior (P < .001).
    • A significant increase in plasma beta-endorphin levels was noted 5, 10, and 15 minutes after the hot flash subsided (P < .002).

    Conclusions:

    • Plasma beta-endorphin levels exhibit a dynamic change during menopausal hot flashes.
    • Reduced beta-endorphin may be associated with hot flash occurrence, while increased levels might be a compensatory response.
    • These findings suggest a potential role for the endogenous opioid system in the pathophysiology of hot flashes.