Cited by 106Maternal Mental Health During Pregnancy and PostpartumStress Responses and CortisolNeuroendocrine regulation and behavior

Inability to suppress the stress-induced activation of the HPA axis during the peripartum period engenders deficits in postpartum behaviors in mice.

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Melón, Laverne Camille, Hooper, Andrew, Yang, Xuzhong, Moss, Stephen J., Maguire, Jamie·2018·Psychoneuroendocrinology

Abstract

The stress-induced activation of the hypothalamic-pituitary-adrenal (HPA) axis is normally suppressed during pregnancy. Dysregulation of the HPA axis has been proposed to play a role in postpartum depression. However, direct investigation into the relationship between the HPA axis and postpartum depression has been hindered by the lack of useful animal models. Building on our discovery of a role for the K+/Cl-co-transporter, KCC2, in the GABAergic regulation of CRH neurons in the paraventricular nucleus of the hypothalamus (PVN), critical for mounting the body's physiological response to stress, we assessed the role of KCC2 in the regulation of the HPA axis during pregnancy and the postpartum period. Here we demonstrate that the normal suppression of the stress-induced activation of the HPA axis during the peripartum period involves maintenance of KCC2 in the PVN. Mice lacking KCC2 specifically in corticosterone-releasing hormone (CRH) neurons, which govern the activity of the HPA axis (KCC2/Crh mice), exhibit dysregulation of the HPA axis and abnormal postpartum behaviors. Loss of KCC2 specifically in CRH neurons in the PVN is sufficient to reproduce the depression-like phenotype and deficits in maternal behaviors during the postpartum period. Similarly, chemogenetic activation of CRH neurons in the PVN is sufficient to induce abnormal postpartum behaviors and chemogenetic silencing of CRH neurons in the PVN can ameliorate abnormal postpartum behaviors observed in KCC2/Crh mice. This study demonstrates that dysregulation of the HPA axis is sufficient to induce abnormal postpartum behaviors and deficits in maternal behaviors in mice, providing empirical support for a role of HPA axis dysfunction in the pathophysiology of postpartum depression.

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Crossref · 10.1016/j.psyneuen.2017.12.003

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  • Animal model studies demonstrate postpartum depression-like behaviors in mice lacking the extrasynaptic GABAAR δ subunit or KCC2, and functionally link GABA with the hypothalamic-pituitary axis.

    “The role of GABAergic signaling is further supported by animal model studies demonstrating PPD-like behaviors in mice lacking the extrasynaptic GABAAR δ subunit or potassium/chloride cotransporter KCC2, and these PPD models also functionally link GABA with the hypothalamic-pituitary axis, a stress pathway implicated in PPD.34,35”

    From Effect of Zuranolone vs Placebo in Postpartum Depression (2021) · cites this paper as [35]

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Research works printed but not linked: 2

  1. [46]O’hara MW, Swain AM (1996) Rates and risk of postpartum depressionΓÇöa meta-analysis. International Review of Psychiatry 8: 37– 54
  2. [50]Robertson ECNaSDE (2008) Risk factors for postpartum depression. World Health Organization: Literature review of risk factors and interventions on postpartum depressio

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Authors
Melón, L. C., Hooper, A., Yang, X., Moss, S. J., & Maguire, J.
Affiliations
Tufts University (US)
Corresponding author
Maguire, Jamie
Venue
Psychoneuroendocrinology
Publisher
Elsevier BV
Published
2018-04
Volume
90
Pages
182-193
ISSN
0306-4530 (ISSN-L)
OpenAlex
W2777121311
Cited by
106
References
60
Citations by year
2026: 8 · 2025: 12 · 2024: 11 · 2023: 8 · 2022: 8 · 2021: 9 · 2020: 30 · 2019: 11 · 2018: 9
FWCI
12.82
Type
journal article
Language
en
Open access
Locations
  • Psychoneuroendocrinology (acceptedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • NIH-NINDS (NS073574, NS102937, NS087662, MH106954)
  • NIH-NIGMS (K12GM074869)
  • IRACDA postdoctoral training grant to Tufts University, Training in Education and Critical Research Skills (TEACRS)
Topics
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Maternal Mental Health During Pregnancy and Postpartum
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Social Sciences › Psychology › Social Psychology › Neuroendocrine regulation and behavior
Keywords
hypothalamic-pituitary-adrenal axis, postpartum depression, KCC2, CRH neurons, paraventricular nucleus, maternal behavior, transition period, pregnancy, stress response, GABAergic regulation, chemogenetic manipulation
MeSH terms
K Cl- Cotransporters, Animals, Behavior, Animal, Corticosterone, Corticotropin-Releasing Hormone, Depression, Female, Hypothalamo-Hypophyseal System, Hypothalamus, Neurons, Paraventricular Hypothalamic Nucleus, Pituitary-Adrenal System, Depression, Postpartum, Symporters, Postpartum Period, Mice, Peripartum Period

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