Objective: Uncertainty surrounds the risks of lithium use during pregnancy in women with bipolar disorder. The authors sought to provide a critical appraisal of the evidence related to the efficacy and safety of lithium treatment during the peripartum period, focusing on women with bipolar disorder and their offspring. Methods: The authors conducted a systematic review and random-effects meta-analysis assessing case-control, cohort, and interventional studies reporting on the safety (primary outcome, any congenital anomaly) or efficacy (primary outcome, mood relapse prevention) of lithium treatment during pregnancy and the postpartum period. The Newcastle-Ottawa Scale and the Cochrane risk of bias tools were used to assess the quality of available PubMed and Scopus records through October 2018.
Genetic aspects may influence the effect of early adverse events on psychological well being in adulthood. In particular, a common polymorphism within the serotonin transporter gene (5-HTTLPR short/long) has been associated to the risk for stress-induced psychopathology. In the present study we investigated the role of childhood traumas and 5-HTTLPR on measures of psychological resilience and depression in a sample of individuals at a high risk for psychological distress (763 male prisoners). The 5-HTTLPR genotype did not influence resilience and depressive severity. However, a significant interaction was observed between 5-HTTLPR and childhood traumas on both resilience and depressive severity. In particular, among subjects exposed to severe childhood trauma only, the long-allele was associated to lower resilience scores and increased current depressive severity as compared to short/short homozygous. Sex specific effects, difference in type and duration of stressors and the specific composition of the sample may explain discrepancy with many studies reporting the short-allele as a vulnerability factor for reactivity to stress. We here speculated that in males the long-allele may confer lower resilience and therefore higher vulnerability for depressive symptoms in subjects exposed to early stress and currently living in stressful environments.
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