Evidence map›Paper›PMID 24614320›Full record

ArticleThe Journal of reproduction and development2014

Suppression of progesterone-enhanced hyperactivation in hamster spermatozoa by γ-aminobutyric acid.

Hiroe Kon, Gen L Takei, Masakatsu Fujinoki, Motoo Shinoda

Open access · goldAbstract read
In one paragraph

Article in The Journal of reproduction and development, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
3.6field-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

22 citing papers in PubMed, 25 citations in OpenAlex.

  1. Regulation of spermatozoal capacitation by serotonin.The Journal of reproduction and development · 2026
    Review
  2. Article
  3. Article
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  5. Review
  6. Article
  7. Article
  8. Enhancement of rat spermatozoal hyperactivation by progesterone.The Journal of reproduction and development · 2023
    Article
  9. Article
  10. Serotonergic signals enhanced hamster sperm hyperactivation.The Journal of reproduction and development · 2021
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
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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

4 authors at 1 institution in 1 country.

Hiroe KonLaboratory Animal Research Center, Dokkyo Medical University, Tochigi 321-0293, Japan.
Gen L Takei
Masakatsu Fujinoki
Motoo Shinoda
Dokkyo Medical University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

It has been recently shown that mammalian spermatozoa were hyperactivated by steroids, amines and amino acids. In the present study, we investigated whether hyperactivation of hamster sperm is regulated by progesterone (P) and γ-aminobutyric acid (GABA). Although sperm hyperactivation was enhanced by P, GABA significantly suppressed P-enhanced hyperactivation in a dose-dependent manner. Suppression of P-enhanced hyperactivation by GABA was significantly inhibited by an antagonist of the GABAA receptor (bicuculline). Moreover, P bound to the sperm head, and this binding was decreased by GABA. Because the concentrations of GABA and P change in association with the estrous cycle, these results suggest that GABA and P competitively regulate the enhancement of hyperactivation through the GABAA receptor.

Indexed as

MesocricetusAnimalsBicucullineCricetinaeDrug AntagonismGABA-A Receptor Antagonistsgamma-Aminobutyric AcidMaleProgesteroneReceptors, GABA-ASpermatozoaSperm CapacitationSperm MotilityBicucullineGABA-A Receptor Antagonistsgamma-Aminobutyric AcidProgesteroneReceptors, GABA-A

Identifiers

PMID24614320
PMCPMC4085384
OpenAlexW2033635962

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.