4.7 Article

Social support mediates the influence of cerebellum functional connectivity strength on postpartum depression and postpartum depression with anxiety

Journal

TRANSLATIONAL PSYCHIATRY
Volume 12, Issue 1, Pages -

Publisher

SPRINGERNATURE
DOI: 10.1038/s41398-022-01781-9

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Funding

  1. National Natural Science Foundation of China [62176044]
  2. Sichuan Science and Technology Program [2021YJ0186, 2019YJ0080, 21YYJC2988, 22ZDYF0831]
  3. National Key Technology R&D Program of the Ministry of Science and Technology of China [2016YFC1307200]
  4. Scientific research project of Sichuan health planning committee [20PJ078]

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Post-Partum Depression (PPD) is a common health issue affecting women's emotional well-being and often co-occurs with anxiety (PPD-A). Adequate social support has been shown to protect against PPD and PPD-A, with specific changes in brain functional connectivity strength in different neural circuits associated with these disorders. Perceived social support mediates the relationship between brain connectivity strength in specific regions and symptoms of PPD and PPD-A, highlighting the potential role of social support as a biomarker for these conditions.
Post-Partum Depression (PPD) is the most common health issue impacting emotional well being in women and is often comorbid with anxiety (PPD-A). Previous studies have shown that adequate social support can protect against PPD and PPD-A. However, how the brain connectome is disrupted in PPD and PPD-A and the neural basis underlying the role of social support in PPD and PPD-A remains unclear. The present study aims to explore these issues in patients with PPD and PPD-A. Well-established questionnaires and resting-state functional Magnetic Resonance Imaging (rsfMRI) were performed in 45 PPD, 31 PDD-A patients and 62 Healthy Postnatal Women (HPW). Brain functional integration was measured by analysis of Functional Connectivity Strength (FCS). Association and mediation analyses were performed to investigate relationships between FCS, PPD and PPD-A symptoms and social support. PPD patients showed specifically higher FCS in right parahippocampus, whereas PPD-A patients showed specifically higher FCS in left ventrolateral prefrontal cortex. In all postpartum women, depression symptoms positively correlated with FCS in left paracentral lobule; depression and anxiety symptoms were negatively correlated with FCS in right cerebellem posterior lobe (CPL), a brain region implicated in supporting social cognition and regulation of emotion. Subsequent mediation analysis revealed that perceived social support mediated the association between right CPL FCS and PPD and PPD-A symptoms. Measurement of FCS in disorder-specific neural circuits offers a potential biomarker to study and measure the efficacy of social support for PPD and PPD-A.

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