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  • Title: Blunted prolactin response to D-fenfluramine in post-stroke major depression.
    Author: Morris P, Hopwood M, Maguire K, Norman T, Schweitzer I.
    Journal: J Affect Disord; 2003 Sep; 76(1-3):273-8. PubMed ID: 12943959.
    Abstract:
    BACKGROUND: This study investigated whether patients suffering from post-stroke depressive disorder had a similar disturbance in central serotonergic function to that described in non-brain injured depressed patients. METHODS: Twenty-three depressed patients (nine major, 14 minor) and 38 non-depressed patients were examined 4-8 weeks post-stroke with a structured interview, rating scales and MRI brain scans. Patients were administered 30 mg D-fenfluramine orally and plasma prolactin and D-fenfluramine concentrations were measured for 6 h post-dose. RESULTS: The prolactin response was significantly blunted in major depression compared to minor depression and non-depressed patients as measured by both delta prolactin and area under the prolactin versus time curve. There was no significant relationship between prolactin response and lesion lateralization or any of the measured clinical characteristics. LIMITATIONS: The major limitation of the study is the relatively small number in each depressive group. CONCLUSIONS: Patients suffering from major depression in the post-stroke period have a blunted prolactin response to D-fenfluramine. This indicates a serotonergic abnormality consistent with that found in major depression where neurological disease is not present.
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