Beniamino Leone

Plasma magnesium levels and treatment outcome in depressed patients

Abstract Objectives High, normal, or low plasma magnesium (Mg) levels have been observed in depressed patients. The aim of our study was to investigate the relationship of Mg levels with depression severity, specific psychopathological dimensions, and treatment outcome. Methods A total of 123 outpatients during a major depressive episode were recruited. All patients showed at least two major depressive episodes and did not achieve remission in the former treatment trial. A blood sample was collected to determine total plasma Mg levels. The psychopathological status was assessed using Hamilton Depression Rating Scale, Hamilton Anxiety Rating Scale, Depression Retardation Rating Scale for psychomotor retardation, and Snaith–Hamilton Pleasure Scale for anhedonia. Hamilton Depression Rating Scale was repeated at 3 months after treatment. Results All patients showed Mg levels mostly within the normal range. No association between Mg levels and psychopathological severity was reported. Patients who responded to antidepressant treatment showed higher Mg levels and higher retardation scores at basal evaluation in comparison with non-responders. Discussion Although further studies investigating the relationship between hypomagnesaemia, depression, and treatment outcome are certainly necessary, we have hypothesized that hypomagnesaemia could be an epiphenomenic biochemical trait in less drug-responsive depressed patients. It is also plausible that lower Mg levels and hyperactive traits identify a biological subtype of patients with increased catecholaminergic functioning and a poorer response to aminergic drugs. Moreover, Mg depletion could partly account for the correlation between low Mg levels and poor outcome and this raises the question of Mgs possible therapeutic role in depression.

Pharmacological Treatment of Internet Addiction

The increasing number of Internet users has resulted in an increased population percentage affected by the negative effects of problematic Internet usage. To date, the management of psychopathological Internet use is not supported by extensive empirical research. No standard clinical treatment protocols for pharmacological treatment exist, and as a result, empirical or anecdotal assessments based on case studies are mainly consulted. A relevant problem in performing clinical trials is the evolving nosology, which encompasses ambiguous definitions of Internet addiction and a diversity of diagnostic, prognostic, and therapeutic criteria. The aim of this chapter is to review the current literature, to assess the extent to which specific pharmacological interventions (e.g., using antidepressants, mood stabilizers, opioid receptor antagonists, or antipsychotics) can alleviate the symptomatic burden in patients with “Internet addiction.” We also explore pharmacological interventions that target patterns of comorbidity and underlying psychopathological dimensions (e.g., addiction, impulsivity, obsessive-compulsive spectrum, bipolar spectrum, dissociation, etc.) shared with other behavioral or substance addictions.

Augmentation of light therapy in difficult-to-treat depressed patients: an open-label trial in both unipolar and bipolar patients

Objectives We investigated the clinical benefits of bright light therapy (BLT) as an adjunct treatment to ongoing psychopharmacotherapy, both in unipolar and bipolar difficult-to-treat depressed (DTD) outpatients. Methods In an open-label study, 31 depressed outpatients (16 unipolar and 15 bipolar) were included to undergo 3 weeks of BLT. Twenty-five completed the treatment and 5-week follow-up. Main outcome measures Clinical outcomes were evaluated by the Hamilton Depression Rating Scale (HDRS). The Snaith–Hamilton Pleasure Scale and the Depression Retardation Rating Scale were used to assess changes in anhedonia and psychomotor retardation, respectively. Results The adjunctive BLT seemed to influence the course of the depressive episode, and a statistically significant reduction in HDRS scores was reported since the first week of therapy. The treatment was well-tolerated, and no patients presented clinical signs of (hypo)manic switch during the overall treatment period. At the end of the study (after 5 weeks from BLT discontinuation), nine patients (36%, eight unipolar and one bipolar) still showed a treatment response. BLT augmentation also led to a significant improvement of psychomotor retardation. Conclusion BLT combined with the ongoing pharmacological treatment offers a simple approach, and it might be effective in rapidly ameliorating depressive core symptoms of vulnerable DTD outpatients. These preliminary results need to be confirmed in placebo-controlled, randomized, double-blind clinical trial on larger samples.

Clinical correlates of difficult-to-treat depression: Exploring an integrated day-care model of treatment.

Background and aims: This study aimed to test the effectiveness of an individualized, integrated, day-care treatment programme for the acute phase of “difficult-to-treat depression” (DTD) in a sample of bipolar and unipolar subjects with a complex co-morbidity pattern. Methods: A total of 291 patients meeting criteria for DTD were consecutively recruited. All participants underwent a 12-week day-care intervention including individual psychological support and group psycho-education. Subjects were assessed for depressive symptom severity by the 21-item Hamilton Depression Rating Scale (HDRS) at the baseline (T0) and after 4 (T1) and 12 (T2) weeks of treatment. A repeated measures general linear model was performed to test for interactive effects among variables. Results: An overall significant improvement was detected in the majority of cases (F = 138.6, p < 0.0001). Responders reported lower rates of personality disorders and higher baseline depressive severity. An interaction between bipolarity and co-morbidity was associated with a poorer outcome (F = 5.9, p = 0.0034). Family involvement was the only significant predictor for symptom improvement (F = 7.9, adjusted p = 0.0025). Conclusions: Our intervention proved to be effective in the treatment of complex and severe forms of depression. Our results on the role of family support require further investigation to better define suitable targets for tailored therapeutic approaches.