1,745,314 research outputs found

    Effect of adjuvant pindolol on the antiobsessional response to fluvoxamine: a double-blind, placebo-controlled study

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    On the basis of recent results indicating that adjuvant pindolol has the positive effect of shortening latency to antidepressant response to selective serotonin reuptake inhibitors, the primary aim of our study was to evaluate the effect of pindolol on latency to antiobsessional response to fluvoxamine. Fifteen non-depressed obsessive-compulsive inpatients (six men and nine women) were consecutively recruited and randomly assigned to an 8-week standardized double-blind treatment with fluvoxamine and pindolol (group A) or fluvoxamine and placebo (group B). Patients were assessed weekly using rating scales for obsessive-compulsive disorder [Yale-Brown Obsessive-Compulsive Scale (Y-BOCS), National Institute of Mental Health Obsessive-Compulsive Scale], co-occurent depressive symptoms (Hamilton Depression Scale) and global function (Clinical Global Improvement), from baseline to the end of the study. In accordance with data from the literature, response to treatment was defined as a reduction in YBOCS total scores of greater than or equal to 35% and a score on the 'global improvement' item of the Clinical Global Improvement of < 3. Data were analysed using analyses of variance with repeated measures performed on YBOCS and Hamilton Depression Scale scores to evaluate the mean quantitive response within and between groups and, additionally, employing a survival analysis to compute the percentage of responders within each group. Neither quantitative nor qualitative analysis revaled any differences between the two treatment groups, and pindolol did not shorten the latency of antiobsessional response to fluvoxamine. The results of this preliminary study indicate that different biological mechanisms underly the antiobsessional and antidepressant responses to fluvoxamine. Int ain Psychopharmacol 13:219-224 (C) 1998 Lippincott Williams & Wilkins. ZR 0 Z8 1 ZS 1 ZB 1

    Efficacy of fluvoxamine, paroxetine, and citalopram in the treatment of obsessive-compulsive disorder: A single-blind study

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    Obsessive-compulsive disorder (OCD) has been successfully treated with proserotonergic agents for some years. Clomipramine was the first drug used, but several clinical trials have been conducted more recently to assess the antiobsessional efficacy of selective serotonin reuptake inhibitors (SSRIs), The aim of this study was to compare the antiobsessional efficacy of three SSRIs, fluvoxamine, paroxetine, and citalopram. Thirty obsessive-compulsive patients without comorbid axis I diagnoses except for tic disorder as assessed by DSM-III-R criteria gave informed consent and were recruited consecutively; they underwent a 10-week randomized treatment with fluvoxamine, paroxetine, or citalopram. Ratings were performed under blind conditions every 2 weeks from baseline to the end of the study and by the Yale-Brown Obsessive-Compulsive Scale, the National Institute of Mental Health-Obsessive-Compulsive Scale, the Clinical Global Impressions Scale, and the Hamilton Rating Scale for Depression. Quantitative and qualitative analyses of the antiobsessional efficacy of the three drugs were completed with analysis of variance with repeated measures and survival analysis. The results showed no significant differences between the three treatments. The preliminary conclusions drawn from this study concern the interchangeable antiobsessional effects of different SSRIs, although further studies of ''cross-response'' to these drugs are needed. ZR 0 ZS 0 Z8 1 ZB 2

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed

    Effect of acute intravenous clomipramine and antiobsessional response to proserotonergic drugs: Is gender a predictive variable?

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    Background: Previous studies on serotonergic responsivity in obsessive-compulsive disorder (OCD) showed about 50% of patients experiencing an acute worsening of OC symptoms when administered meta-chlorophenylpiperazine or IV clomipramine. The aim of this study was to determine what variables influence the response to acute IV clomipramine. Could this response be predictive of the response to chronic treatment with two serotonergic drugs with differing selectivity profiles: clomipramine and fluvoxamine? Methods: Fifty OC patients were consecutively recruited. All underwent a challenge with 25 mg IV clomipramine and placebo and were administered 10-week oral clomipramine or fluvoxamine according to a double-blind design. The efficiency of the antiobsessional treatment was evaluated by Yale-Brown Obsessive-Compulsive Scale and Clinical Global Impression scale scores. Results: Obsessions worsened in 42% patients as rated by change values in 100-mm visual analogue scale scores for the clomipramine vs. placebo infusion. There was a significant difference in gender distribution between "worsened" and "unchanged" patients, since female subjects were more frequently "unchanged." Thirty-one patients completed the 10-week treatment. According to both qualitative and quantitative evaluations, female subjects showed a better antiobsessional response, and this difference was enhanced in the clomipramine-treated group. Conclusions: Results suggest a role for reproductive hormones in the pathophysiology or treatment of OC patients. Biol Psychiatry 1999;45:290-294 (C) 1999 Society of Biological Psychiatry. Z8 0 ZR 0 ZS 1 ZB 2

    Duration of untreated illness in major depressive disorder: a naturalistic study

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    BACKGROUND: Most of the studies on the duration of untreated illness (DUI) as a possible predictor of the clinical outcome and the course have focused on the psychotic disorders. The present naturalistic study was aimed to evaluate the possible relationship between the DUI and some clinical characteristics of a sample of patients with major depressive disorder (MDD). METHODS: Sixty-eight patients with MDD, according to the Diagnostic and Statistical Manual of Mental Disorders, IV Edition, Text Revision (DSM-IV-TR) criteria, followed-up for 4 years, were selected, interviewed and their clinical charts reviewed. The DUI was defined as the interval between the onset of the first major depressive episode and the first adequate antidepressant treatment. The sample was divided in two groups according to a DUI 12 months (n = 23). The main demographic and clinical course variables were compared between the two groups using t-tests or chi-squared tests. RESULTS: Patients with a DUI > 12 months were more frequently women (chi2 = 4.005, p = 0.045), had an earlier onset (t = 2.515, p = 0.014), a longer duration of illness (t = -2.483, p = 0.016), a higher number of recurrences (t = -2.262, p = 0.027) and had more frequently comorbid Axis I disorders with onset later than MDD (chi2 = 5.595, p = 0.05). CONCLUSIONS: These findings suggest that a longer DUI may negatively influence the clinical course of MDD. Further studies on larger samples are warranted to confirm these preliminary results
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