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Interaction between the functional SNP rs2070951 in NR3C2 gene and high levels of plasma corticotropin-releasing hormone associates to postpartum depression

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Abstract

Postpartum depression (PPD) is a common mood disorder that occurs after delivery with a prevalence of approximately 10%. Recent reports have related placental corticotropin-releasing hormone (pCRH) to postpartum depressive symptoms. The aim of this study was to determine whether pCRH, ACTH, and cortisol (measured 48 h after delivery) and glucocorticoid and mineralocorticoid receptor genotypes (NR3C1 and NR3C2) and their interaction are associated with PPD. A longitudinal 32-week prospective study of five hundred twenty-five Caucasian depression-free women that were recruited from obstetric units at two Spanish general hospitals immediately after delivery. Of the women included in the sample, forty-two (8%) developed PPD. A strong association between PPD and the interaction between the pCRH and NR3C2 rs2070951 genotype was observed. The mean level of pCRH in rs2070951GG carriers with PPD was 56% higher than the mean in the CG and CC genotype groups (P < 0.00005). Carriers of the rs2070951GG genotype with high levels of pCRH had a higher risk of developing PPD (OR = 1.020, 95% CI 1.007–1.034, P = 0.002). This association remained even after controlling for variables such as neuroticism, obstetric complications and the number of stressful life events during pregnancy. There is an important interaction between pCRH 48 h postpartum and the NR3C2 rs2070951GG genotype. This interaction moderately associates with the presence of PPD. These results may open a new line of research and, if confirmed in other settings, will help to identify better risk predictors and the treatment for PPD.

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This work was supported by the Instituto de Salud Carlos III (Spanish Ministry of Health) grant numbers PI04/2007.

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Correspondence to Alfonso Gutiérrez-Zotes.

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All procedures performed were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

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Informed consent was obtained from all individual participants included in the study.

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The Instituto de Salud Carlos III had no further role in study design; in the collection, analysis, or interpretation of data; in the writing of the report; or in the decision to submit the paper for publication.

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Gutiérrez-Zotes, A., Díaz-Peña, R., Costas, J. et al. Interaction between the functional SNP rs2070951 in NR3C2 gene and high levels of plasma corticotropin-releasing hormone associates to postpartum depression. Arch Womens Ment Health 23, 413–420 (2020). https://doi.org/10.1007/s00737-019-00989-x

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  • DOI: https://doi.org/10.1007/s00737-019-00989-x

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