ArticleBrain, behavior, and immunity2026
Examining the association between prenatal inflammation and postpartum depression in a large, prospective pregnancy cohort in New York City.
Article in Brain, behavior, and immunity, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
The role of late-term maternal inflammation in the pathogenesis of postpartum depression is a subject of increasing research focus. In this prospective cohort study of 563 demographically and clinically diverse participants from New York City, we examined associations between third-trimester plasma levels of four inflammatory markers - IL-1β, IL-6, IL-17A, and C-reactive protein (CRP) - and depressive symptoms 4-8 weeks postpartum, measured using the Edinburgh Postnatal Depression Scale (EPDS). EPDS scores were modeled continuously, categorically (EPDS ≥ 10), and across empirically derived symptom domains (anhedonia, anxiety, depression). Across all analytic models, we found no significant associations between plasma inflammatory markers and postpartum depressive symptoms after adjusting for clinical, demographic, and technical covariates. Our results do not support third-trimester inflammatory markers as standalone biomarkers of postpartum depression risk, but highlight the need to incorporate longitudinal immune profiling, multimodal biomarkers, and integrative psychosocial models to better elucidate mechanisms and improve prediction and prevention of postpartum depression.
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