Evidence map›Paper›PMID 36115939›Full record

ArticleBMC pregnancy and childbirth2022

Endogenous oxytocin levels in extracted saliva elevates during breastfeeding correlated with lower postpartum anxiety in primiparous mothers.

Miyuki Nagahashi-Araki, Makoto Tasaka, Tsunehiko Takamura, Hiromi Eto, Noriko Sasaki, Wakako Fujita, Asuka Miyazaki, Kanako Morifuji, Naoko Honda, Tunetake Miyamura and 1 more

Open access · goldAbstract read
In one paragraph

Article in BMC pregnancy and childbirth, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
3.1field-weighted citation impact, top 8% 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

9 citing papers in PubMed, 14 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Article
  5. Review
  6. Article
  7. Oxytocin and its links through scientific lineage.Comprehensive psychoneuroendocrinology · 2024
    Article
  8. Article
  9. 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

11 authors at 3 institutions in 1 country.

Miyuki Nagahashi-ArakiInstitute of Biomedical Sciences, Nagasaki University, Nagasaki, 852-8520, Japan. miyuki-a@nagasaki-u.ac.jp.
Makoto TasakaNagasaki Goto Chuoh Hospital, Nagasaki, Japan.
Tsunehiko TakamuraDepartment of Behavioral Medicine, National Institute of Mental Health, Tokyo, Japan.
Hiromi EtoInstitute of Biomedical Sciences, Nagasaki University, Nagasaki, 852-8520, Japan.
Noriko SasakiInstitute of Biomedical Sciences, Nagasaki University, Nagasaki, 852-8520, Japan.
Wakako FujitaInstitute of Biomedical Sciences, Nagasaki University, Nagasaki, 852-8520, Japan.
Asuka MiyazakiInstitute of Biomedical Sciences, Nagasaki University, Nagasaki, 852-8520, Japan.
Kanako MorifujiInstitute of Biomedical Sciences, Nagasaki University, Nagasaki, 852-8520, Japan.
Naoko HondaInstitute of Biomedical Sciences, Nagasaki University, Nagasaki, 852-8520, Japan.
Tunetake MiyamuraMiyamura Obstetrics and Gynecology Clinic, Nagasaki, Japan.
Shota NishitaniResearch Center for Child Mental Development, University of Fukui, Fukui, Japan. nshota@u-fukui.ac.jp.
Nagasaki University · JPNational Institute of Mental Health · JPUniversity of Fukui · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundBreastfeeding in the early postpartum period is expected to have mental benefits for mothers; however, the underlying psychobiological mechanisms remain unclear. Previously, we hypothesized that the release of oxytocin in response to the suckling stimuli during breastfeeding would mediate a calming effect on primiparous mothers, and we examined salivary oxytocin measurements in primiparous mothers at postpartum day 4 using saliva samples without extraction, which was erroneous. Thus, further confirmation of this hypothesis with a precise methodology was needed.

methodsWe collected saliva samples at three time points (baseline, feeding, and post-feeding) to measure oxytocin in 24 primiparous mothers on postpartum day 2 (PD2) and 4 (PD4) across the breastfeeding cycle. Salivary oxytocin levels using both extracted and unextracted methods were measured and compared to determine the qualitative differences. State and trait anxiety and clinical demographics were evaluated to determine their association with oxytocin changes.

resultsBreastfeeding elevated salivary oxytocin levels; however, it was not detected to a significant increase in the extraction method at PD4. We found a weak but significant positive correlation between changes in extracted and unextracted oxytocin levels during breastfeeding (feeding minus baseline); there were no other significant positive correlations. Therefore, we used the extracted measurement index for subsequent analysis. We showed that the greater the increase in oxytocin during breastfeeding, the lower the state anxiety, but not trait anxiety. Mothers who exclusively breastfed at the 1-month follow-up tended to be associated with slightly higher oxytocin change at PD2 than those who did not.

conclusionsBreastfeeding in early postpartum days could be accompanied by the frequent release of oxytocin and lower state anxiety, potentially contributing to exclusive breastfeeding.

Indexed as

AnxietyBreast FeedingOxytocinSalivaFemaleHumansPostpartum PeriodOxytocinAnxietyCalming effectExtractionMaternity bluesPostpartum depression

Identifiers

PMID36115939
PMCPMC9482205
OpenAlexW4296120608

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.