Evidence map›Paper›PMID 31358839›Full record

ArticleScientific reports2019

Previous contraceptive treatment relates to grey matter volumes in the hippocampus and basal ganglia.

Belinda Pletzer, TiAnni Harris, Esmeralda Hidalgo-Lopez

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
8.0field-weighted citation impact, top 3% 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

25 citing papers in PubMed, 1 synthesis or guideline pooled it, 48 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Hormonal Contraception and the Brain: Bridging a Gap in Steroid Neuropharmacology.Biological psychiatry. Cognitive neuroscience and neuroimaging · 2026
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Beyond Birth Control: The Neuroscience of Hormonal Contraceptives.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024
    Review
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Review
  17. Article
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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

3 authors at 1 institution in 1 country.

Belinda PletzerDepartment of Psychology & Centre for Cognitive Neuroscience, University of Salzburg, Salzburg, Austria. Belinda.Pletzer@sbg.ac.at.
TiAnni HarrisDepartment of Psychology & Centre for Cognitive Neuroscience, University of Salzburg, Salzburg, Austria.
Esmeralda Hidalgo-LopezDepartment of Psychology & Centre for Cognitive Neuroscience, University of Salzburg, Salzburg, Austria.
University of Salzburg · AT

Funding

Austrian Science Fund FWF P 28261Austrian Science Fund FWF W 1233
6 · The paper itself

Abstract

Oral contraceptive (OC) effects on the brain have gained increasing interest, but are highly controversial. Previous studies suggest that OC users have larger hippocampi, parahippocampi, fusiform gyri and Cerebelli. Preliminary evidence from one of those studies even suggests an effect of previous contraceptive use on the hippocampi of women who are not current users of OCs. Furthermore, more recent studies postulate an involvement of previous OC treatment in later development of mood disorders. To address the question whether previous OC treatment affects women's brain structure later in life, high resolution structural images were obtained from 131 naturally cycling women. Among them, 52 women had never used OC before, 52 had previously used one OC for a continuous time period and 27 had previously used multiple contraceptives. The groups did not differ in gray matter volumes. Since endogenous sex hormones modulate gray matter volumes of the hippocampus and basal ganglia along the menstrual cycle, we hypothesize effects of OC use on these areas. Specifically, we hypothesize that a longer duration of previous OC treatment is related to larger hippocampi and larger basal ganglia. Indeed we found the duration of previous OC use to be positively correlated to hippocampal and basal ganglia volumes bilaterally. For the hippocampus, but not for the basal ganglia, this association disappeared after controlling for the time since discontinuation. These results suggest that for the hippocampus, but not for the basal ganglia, effects of previous contraceptive treatment are reversed after a time period comparable to treatment duration. These data question the immediate reversibility of OC effects on brain structure. Accordingly, some changes in the brain due to long-term contraceptive use, while subtle, may be long-lasting.

Indexed as

AdultBasal GangliaContraceptionContraceptives, OralFemaleGray MatterHippocampusHumansOrgan SizeYoung AdultContraceptives, Oral

Identifiers

PMID31358839
PMCPMC6662764
OpenAlexW2965638523

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.