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PubMed · 10690575

Personality disorders and depression: comorbidity.

R M Hirschfeld
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Abstract

Depression and comorbid personality disorders relate to one another in three distinct ways: 1) personality disorders may precede the development of depression and render an individual vulnerable to depression; 2) depression may precede the personality disorder and foster the development of the personality disorder; 3) there may be an interface between personality disorders and depression, which has been deemed depressive personality disorder. This article reviews data on the comorbidity of depression, particularly chronic depression, and personality disorders. This article also reviews data on the effect of comorbid personality disorders on treatment for depression, and the effect that treatment for depression has on personality disorders. Comorbid personality disorders generally do not impede treatment for depression. Successful treatment for depression is associated with improvement in personality disorders.

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ComorbidityMajor Depressive DisorderHumansPersonality DisordersPrevalenceTreatment OutcomeJournal ArticleReview

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BibTeXRIS

R M Hirschfeld. 1999. Personality disorders and depression: comorbidity.. https://doi.org/10.1002/(sici)1520-6394(1999)10%3A4%3C142%3A%3Aaid-da2%3E3.0.co%3B2-q

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Assessing the comorbidity between asthma and depression through polygenic risk scoring and time-to-event models.

BACKGROUND: Patients with asthma have an increased risk of developing depression, affecting their quality of life. To date, the processes contributing to this comorbidity remain unclear. METHODS: We integrated two large genome-wide association studies (88,486 patients with asthma and 447,859 controls; 412,024 patients with depression and 1,587,577 controls) with cross-sectional and longitudinal information available from the All of Us Research Program (N = 87,167) through polygenic risk scoring (PRS), Cox proportional-hazards models, one-sample Mendelian randomization (MR), and gene-set and drug-repurposing analyses. RESULTS: We observed that depression PRS was associated with increased asthma risk (hazard ratio, HR = 1.13, 95% CI = 1.09-1.17), also when accounting for comorbidity status (HR = 1.08, 95% CI = 1.04-1.12). Conversely, the effect of asthma PRS was null after accounting for comorbidity status. One-sample MR analysis showed an effect of depression genetic liability on asthma, ranging from beta = 0.36 ± 0.03 when considering a linear relationship to beta = 3.21 ± 0.31 when considering possible nonlinear relationships. Conversely, the effect of asthma genetic risk on depression was null after accounting for potential confounders. The gene-set analyses showed that asthma and depression polygenic risks share biological processes, molecular functions, and cellular components related to the immune system and the lung-brain axis. CONCLUSIONS: Genetic predisposition contributes to asthma-depression comorbidity through direct effects and shared pathogenic processes. These findings highlight the potential to develop targeted interventions to prevent and treat the co-occurrence of respiratory and neuropsychiatric disorders.

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