Journal of psychiatric research
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Randomized Controlled Trial
Change in cytokine levels is not associated with rapid antidepressant response to ketamine in treatment-resistant depression.
Several pro-inflammatory cytokines have been implicated in depression and in antidepressant response. This exploratory analysis assessed: 1) the extent to which baseline cytokine levels predicted positive antidepressant response to ketamine; 2) whether ketamine responders experienced acute changes in cytokine levels not observed in non-responders; and 3) whether ketamine lowered levels of pro-inflammatory cytokines, analogous to the impact of other antidepressants. Data from double-blind, placebo-controlled studies of patients with major depressive disorder (MDD) or bipolar disorder (BD) who received a single infusion of sub-anesthetic dose ketamine were used (N = 80). ⋯ The functional significance of this difference is unknown. Changes in cytokine levels post-ketamine were not related to antidepressant response, suggesting they are not a primary mechanism involved in ketamine's acute antidepressant effects. Taken together, the results suggest that further study of cytokine levels is warranted to assess their potential role as a surrogate outcome in the rapid antidepressant response paradigm.
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Multicenter Study
Risk factors for suicide attempt in pregnancy and the post-partum period in women with serious mental illnesses.
Suicide is a major public health concern worldwide, and mental disorders have been identified as a main risk factor. Suicide is also one of the leading causes of perinatal maternal mortality, but very few studies have focused on suicide attempts (SA) in the perinatal period. This work aims to assess risk factors associated with SA in pregnancy and in the post-partum period in women with mental health disorders. ⋯ SA in the post-partum period was associated with major depressive episode (OR = 2.72[1.40-5.26]; p = 0.003) or recurrent depression (OR = 4.12[2.25-7.51], p < 0.001) and younger age (OR = 0.96[0.93-0.99], p = 0.03). SAs in the course of pregnancy and the postpartum period have different risk factors. Special attention to risk of suicide is needed during pregnancy for women with severe mental illness and a history of miscarriage, alcohol or cigarette use, young age and depression in the perinatal period.