TY - JOUR PY - 1997// TI - Effects of intrathecal thyrotropin-releasing hormone (protirelin) in refractory depressed patients JO - Archives of general psychiatry A1 - Marangell, L.B. A1 - George, M.S. A1 - Callahan, A.M. A1 - Ketter, T.A. A1 - Pazzaglia, P.J. A1 - L'Herrou, T.A. A1 - Leverich, G.S. A1 - Post, R.M. SP - 214 EP - 222 VL - 54 IS - 3 N2 - BACKGROUND: Therapeutic effects of the tripeptide protirelin (thyrotropin-releasing hormone) have been postulated in the affective disorders, but direct assessment in humans has been hindered by poor blood- brain barrier permeability.

METHODS: Eight medication-free inpatients with refractory depression received 500 μg of protirelin via a lumbar intrathecal injection and an identical sham lumbar puncture procedure, separated by 1 week, in a double-blind crossover design.

RESULTS: Five of eight patients responded to intrathecal protirelin, defined as a 50% or greater reduction in an abbreviated Hamilton Rating Scale for Depression score. Suicidality also was reduced significantly (P<.05) Responses were rapid and clinically robust, but short-lived.

CONCLUSION: Administration of protirelin by an intrathecal route induced a rapid improvement in mood and suicidality in these refractory depressed patients, supporting the hypothesis that thyrotropin-releasing hormone could be a positive modulator of mood.

Language: en

LA - en SN - 0003-990X UR - http://dx.doi.org/10.1001/archpsyc.1997.01830150034007 ID - ref1 ER -