Evidence map›Paper›PMID 33487439›Full record

ArticleBiological psychiatry2021

Estrogen Withdrawal Increases Postpartum Anxiety via Oxytocin Plasticity in the Paraventricular Hypothalamus and Dorsal Raphe Nucleus.

Valerie L Hedges, Elizabeth C Heaton, Claudia Amaral, Lauren E Benedetto, Clio L Bodie, Breanna I D'Antonio, Dayana R Davila Portillo, Rachel H Lee, M Taylor Levine, Emily C O'Sullivan and 7 more

Open access · greenAbstract read
In one paragraph

Article in Biological psychiatry, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 1 pooled it
5.4field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

34 citing papers in PubMed, 1 synthesis or guideline pooled it, 53 citations in OpenAlex.

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  20. Circulating JKAP levels may correlate with postpartum anxiety and depression through its interaction with T helper 17 cells.Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica · 2024
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

17 authors at 3 institutions in 1 country.

Valerie L HedgesPhysiology Department, Michigan State University, East Lansing, Michigan.
Elizabeth C HeatonDepartment of Psychology, Haverford College, Haverford, Pennsylvania.
Claudia AmaralDepartment of Psychology, Haverford College, Haverford, Pennsylvania.
Lauren E BenedettoDepartment of Psychology, Haverford College, Haverford, Pennsylvania.
Clio L BodieDepartment of Psychology, Haverford College, Haverford, Pennsylvania.
Breanna I D'AntonioDepartment of Psychology, Haverford College, Haverford, Pennsylvania.
Dayana R Davila PortilloDepartment of Psychology, Haverford College, Haverford, Pennsylvania.
Rachel H LeeDepartment of Psychology, Haverford College, Haverford, Pennsylvania.
M Taylor LevineDepartment of Psychology, Haverford College, Haverford, Pennsylvania.
Emily C O'SullivanDepartment of Psychology, Haverford College, Haverford, Pennsylvania.
Natalie P PischDepartment of Psychology, Haverford College, Haverford, Pennsylvania.
Shantal TaverasDepartment of Psychology, Haverford College, Haverford, Pennsylvania.
Hannah R WildDepartment of Psychology, Haverford College, Haverford, Pennsylvania.
Zachary A GriebCenter for Behavioral Neuroscience and Neuroscience Institute, Georgia State University, Atlanta, Georgia.
Amy P RossCenter for Behavioral Neuroscience and Neuroscience Institute, Georgia State University, Atlanta, Georgia.
H Elliott AlbersCenter for Behavioral Neuroscience and Neuroscience Institute, Georgia State University, Atlanta, Georgia.
Laura E BeenDepartment of Psychology, Haverford College, Haverford, Pennsylvania. Electronic address: lbeen@haverford.edu.
Haverford College · USGeorgia State University · USMichigan State University · US

Funding

Sex Differences in the Social BrainR01MH110212 · NIMH · GEORGIA STATE UNIVERSITY · PI ALBERS, H. ELLIOTT, MICHOPOULOS, VASILIKI · 2016 to 2020
$3.3M
NIMH NIH HHS R01 MH110212
6 · The paper itself

Abstract

backgroundEstrogen increases dramatically during pregnancy but quickly drops below prepregnancy levels at birth and remains suppressed during the postpartum period. Clinical and rodent work suggests that this postpartum drop in estrogen results in an estrogen withdrawal state that is related to changes in affect, mood, and behavior. How estrogen withdrawal affects oxytocin (OT) neurocircuitry has not been examined.

methodsWe used a hormone-simulated pseudopregnancy followed by estrogen withdrawal in Syrian hamsters, a first for this species. Ovariectomized females were given daily injections to approximate hormone levels during gestation and then withdrawn from estrogen to simulate postpartum estrogen withdrawal. These hamsters were tested for behavioral assays of anxiety and anhedonia during estrogen withdrawal. Neuroplasticity in OT-producing neurons in the paraventricular nucleus of the hypothalamus and its efferent targets was measured.

resultsEstrogen-withdrawn females had increased anxiety-like behaviors in the elevated plus maze and open field tests but did not differ from control females in sucrose preference. Furthermore, estrogen-withdrawn females had more OT-immunoreactive cells and OT messenger RNA in the paraventricular nucleus of the hypothalamus and an increase in OT receptor density in the dorsal raphe nucleus. Finally, blocking OT receptors in the dorsal raphe nucleus during estrogen withdrawal prevented the high-anxiety behavioral phenotype in estrogen-withdrawn females.

conclusionsEstrogen withdrawal induces OT neuroplasticity in the paraventricular nucleus of the hypothalamus and dorsal raphe nucleus to increase anxiety-like behavior during the postpartum period. More broadly, these experiments suggest Syrian hamsters as a novel organism in which to model the effects of postpartum estrogen withdrawal on the brain and anxiety-like behavior.

Indexed as

Dorsal Raphe NucleusOxytocinAnxietyEstrogensFemaleHumansHypothalamusParaventricular Hypothalamic NucleusPostpartum PeriodPregnancyEstrogensOxytocinAnxietyParaventricular nucleusPostpartum depressionPregnancySerotonin

Identifiers

PMID33487439
PMCPMC8052262
OpenAlexW3101862773

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.