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Related Experiment Videos

[Prolactin stimulation test using TRH in affective disorders (72 cases)].

F Granier, F de Ona, M Girard

    Annales Medico-Psychologiques
    |July 1, 1986
    PubMed
    Summary

    The thyrotropin-releasing hormone (TRH) stimulation test in affective disorders revealed no diagnostic value for depression subtypes. However, elevated prolactin levels were significantly associated with bipolar disorder.

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    Area of Science:

    • Neuroendocrinology
    • Psychiatry
    • Clinical Neuroscience

    Background:

    • Affective disorders encompass a range of mood disturbances.
    • Prolactin, a pituitary hormone, is influenced by various physiological and pharmacological factors.
    • Thyrotropin-releasing hormone (TRH) stimulation tests are used to assess endocrine function.

    Purpose of the Study:

    • To investigate the utility of the TRH stimulation test in patients with affective disorders.
    • To examine the relationship between prolactin levels and different types of affective disorders, particularly depression and bipolar disorder.

    Main Methods:

    • A cohort of 72 inpatients diagnosed with affective disorders underwent TRH stimulation testing.
    • Plasma prolactin levels were measured before and after TRH administration.

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  • Statistical analyses were performed to evaluate the impact of physiological factors and treatments on prolactin levels and to assess diagnostic value.

    • Main Results:

    • The TRH stimulation test did not differentiate between various subtypes of depression.
    • Known influences of age, sex, and medications (neuroleptics, lithium, L-Dopa) on prolactin levels were confirmed.
    • A notable correlation was observed between higher prolactin levels and bipolar disorder.

    Conclusions:

    • The TRH stimulation test lacks value in the differential diagnosis of depressive subtypes.
    • Elevated prolactin levels may serve as a potential biomarker associated with bipolar disorder in patients with affective disorders.