Mirtazapine, a noradrenergic and specific serotonergic antidepressant(NaSSA), was administered on a flexible schedule in a sample of 17 drug-free patients meeting DSM-IV criteria for a major depressive episode. Sleep polygraphic recordings were performed before and during acute and chronic treatment. Severity of depression and subjective assessment of changes within different aspects of sleep were also evaluated. During the acute administration (first 2 days), mirtazapine significantly increased total sleep time, sleep efficiency, stage II, stage rapid eye movement and slow-wave sleep percentages, and decreased sleep latency and stage awake percentage. These effects persisted after 5 weeks of treatment. Subjectively, mirtazapine induced an improvement of sleep. This open, noncontrolled study suggests that mirtazapine ameliorates the sleep disturbances encountered in depressed patients both objectively and subjectively.
In the present study, P3OO has been recorded in 26 subjects (15 women) 1 month after an aggression without organic complications. Among our sample, 16 subjects fulfilled DSM-III-R criteria for posttraumatic stress disorder (PTSD) and 10 did not. P3OO amplitude was significantly lower in the 16 PTSD subjects as compared to the 10 subjects without PTSD. This study supports information processing disturbances in PTSD.
The efficacy and the tolerance of milnacipran (100 mg/day), a second generation antidepressant which equipotently inhibits both noradrenaline and serotonin reuptake, was compared to fluoxetine (20 mg/day), a selective serotonin reuptake inhibitor, in two parallel groups of, respectively, 97 and 93 major depressive outpatients. The duration of the study was 6 weeks, with assessments every 2 weeks by means of the Montgomery and Asberg depression scale (MADRS), the Hamilton depression scale, the clinical global impressions (CGI), and a checklist of symptoms and side-effects. Results showed significant superiority of fluoxetine over milnacipran on most rating instruments: MADRS (P = 0.01) including five individual items, Hamilton depression scale (P = 0.002) including ten individual items, CGI of severity (P = 0.01) and therapeutical index (P = 0.002). On visual analogue scales assessing the clinical profile of the compounds, fluoxetine was rated as exhibiting more psychostimulating activity than milnacipran (P = 0.0008). The tolerance of the two antidepressants was very similar, with the exception of symptoms of dizziness which were more frequently reported with milnacipran (P = 0.01). These differences in efficacy favoring fluoxetine could result from the selection of a dose of milnacipran below the optimal therapeutic dose for this type of psychiatric patients or to the administration of the compounds in single daily intakes, whereas milnacipran possesses a plasma elimination half-life of only 7 h.
We have observed a significantly higher growth hormone (GH) response to clonidine administration (150 micrograms i.v.) in 14 patients with a major depressive disorder who had never received antidepressant therapy than in 14 matched depressive patients who had not received tricyclic drugs for at least 15 days. Compared with a control group of eight subjects, untreated depressed patients, as a group, had a normal response, while matched patients had markedly blunted response. Results for the group of untreated depressed patients showed that some patients had a blunted response while others had a response in the normal range. The results suggest that studies on the GH response to clonidine in psychiatric patients need to take into account the confounding and long-lasting effects of tricyclics.
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