Dataset Information

Relationship between obesity and depression: characteristics and treatment outcomes with antidepressant medication.

ABSTRACT: Obesity and major depressive disorder often co-occur. However, differences between obese and normal-weight depressed patients and the moderating effect of obesity on antidepressant treatment outcome are not well studied.Adults (n = 662) with major depressive disorder in the Combining Medications to Enhance Depression Outcomes study were randomized to treatment with escitalopram plus placebo, bupropion plus escitalopram, or venlafaxine plus mirtazapine for a 12-week primary treatment phase and 16-week follow-up. Body mass index (BMI) was calculated at baseline and categorized according to World Health Organization criteria: normal or low weight (NW), overweight, Obese I and Obese II+. A repeated-effects model, unadjusted and adjusted for baseline variables, assessed outcomes.Obesity was common (46.2%), only 25.5% were NW. Higher BMI was associated with greater medical illness (p < .001), social phobia (p = .003), and bulimia (p = .026). Lower BMI was associated with more frequent post-traumatic stress disorder (p = .002) and drug abuse (p < .001). Treatment outcomes did not differ including Week 12 remission rates (NW 36%, overweight 40%, Obese I 43%, Obese II+ 37%; p = .69). Lower BMI was associated with more frequent (p = .024 [unadjusted] and .053 [adjusted]) and more severe (p = .008 [unadjusted] and .053 [adjusted]) adverse effects.BMI was related to clinical presentation and prevalence of comorbidities, but not antidepressant outcomes. Lower BMI classes had more psychiatric comorbidities, potentially obscuring the relationship between BMI and antidepressant effects. Trial Registration ClinicalTrials.gov identifier: NCT00590863.

SUBMITTER: Toups MS

PROVIDER: S-EPMC3905462 | biostudies-literature | 2013 Nov-Dec

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

Relationship between obesity and depression: characteristics and treatment outcomes with antidepressant medication.

Toups Marisa S P MS Myers Alyson K AK Wisniewski Stephen R SR Kurian Benji B Morris David W DW Rush Augustus John AJ Fava Maurizio M Trivedi Madhukar H MH

Psychosomatic medicine 20131025 9

<h4>Objective</h4>Obesity and major depressive disorder often co-occur. However, differences between obese and normal-weight depressed patients and the moderating effect of obesity on antidepressant treatment outcome are not well studied.<h4>Methods</h4>Adults (n = 662) with major depressive disorder in the Combining Medications to Enhance Depression Outcomes study were randomized to treatment with escitalopram plus placebo, bupropion plus escitalopram, or venlafaxine plus mirtazapine for a 12-w ...[more]

PMID: 24163386

Similar Datasets

Project description:Background: Hippocampal atrophy has been consistently reported in major depressive disorder with more recent focus on subfields. However, literature on hippocampal volume changes after antidepressant treatment has been limited. The first-line treatments for depression include antidepressant medication (ADM) or cognitive-behavior therapy (CBT). To understand the differential effects of CBT and ADM on the hippocampus, we investigated the volume alterations of hippocampal subfields with treatment, outcome, and chronicity in treatment-naïve depression patients. Methods: Treatment-naïve depressed patients from the PReDICT study were included in this analysis. A total of 172 patients who completed 12 weeks of randomized treatment with CBT (n = 45) or ADM (n = 127) were included for hippocampal subfield volume analysis. Forty healthy controls were also included for the baseline comparison. Freesurfer 6.0 was used to segment 26 hippocampal substructures and bilateral whole hippocampus from baseline and week 12 structural MRI scans. A generalized linear model with covariates of age and gender was used for group statistical tests. A linear mixed model for the repeated measures with covariates of age and gender was used to examine volumetric changes over time and the contributing effects of treatment type, outcome, and illness chronicity. Results: Of the 172 patients, 85 achieved remission (63/127 ADM, 22/45 CBT). MDD patients showed smaller baseline volumes than healthy controls in CA1, CA3, CA4, parasubiculum, GC-ML-DG, Hippocampal Amygdala Transition Area (HATA), and fimbria. Over 12 weeks of treatment, further declines in the volumes of CA1, fimbria, subiculum, and HATA were observed regardless of treatment type or outcome. CBT remitters, but not ADM remitters, showed volume reduction in the right hippocampal tail. Unlike ADM remitters, ADM non-responders had a decline in volume in the bilateral hippocampal tails. Baseline volume of left presubiculum (regardless of treatment type) and right fimbria and HATA in CBT patients were correlated with a continuous measure of clinical improvement. Chronicity of depression had no effect on any measures of hippocampal subfield volumes. Conclusion: Two first-line antidepressant treatments, CBT and ADM, have different effects on hippocampal tail after 12 weeks. This finding suggests that remission achieved via ADM may protect against progressive hippocampal atrophy by altering neuronal plasticity or supporting neurogenesis. Studies with multimodal neuroimaging, including functional and structural analysis, are needed to assess further the impact of two different antidepressant treatments on hippocampal subfields.

Dataset Information

Relationship between obesity and depression: characteristics and treatment outcomes with antidepressant medication.

Publications

Relationship between obesity and depression: characteristics and treatment outcomes with antidepressant medication.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets