Evidence map›Paper›PMID 31178551›Full record

ArticleThe Journal of reproduction and development2019

Capacitation of mouse sperm is modulated by gamma-aminobutyric acid (GABA) concentration.

Shouhei Kurata, Yuuki Hiradate, Kohei Umezu, Kenshiro Hara, Kentaro Tanemura

Open access · goldAbstract read
In one paragraph

Article in The Journal of reproduction and development, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
3.0field-weighted citation impact, top 10% 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

21 citing papers in PubMed, 24 citations in OpenAlex.

  1. Regulation of spermatozoal capacitation by serotonin.The Journal of reproduction and development · 2026
    Review
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  6. Protective Effects ofLife (Basel, Switzerland) · 2025
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  10. FromiScience · 2024
    Article
  11. Article
  12. Article
  13. Article
  14. Gut microbiota supports male reproductionFrontiers in microbiology · 2022
    Review
  15. Review
  16. Article
  17. Article
  18. Review
  19. Article
  20. 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

5 authors at 1 institution in 1 country.

Shouhei KurataLaboratory of Animal Reproduction and Development, Graduate School of Agricultural Science, Tohoku University, Miyagi 980-0845, Japan.
Yuuki HiradateLaboratory of Animal Reproduction and Development, Graduate School of Agricultural Science, Tohoku University, Miyagi 980-0845, Japan.
Kohei UmezuLaboratory of Animal Reproduction and Development, Graduate School of Agricultural Science, Tohoku University, Miyagi 980-0845, Japan.
Kenshiro HaraLaboratory of Animal Reproduction and Development, Graduate School of Agricultural Science, Tohoku University, Miyagi 980-0845, Japan.
Kentaro TanemuraLaboratory of Animal Reproduction and Development, Graduate School of Agricultural Science, Tohoku University, Miyagi 980-0845, Japan.
Tohoku University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In mammals, ejaculated sperm acquire their fertilizing ability during migration through the female reproductive tract, which secretes several factors that contribute to sperm capacitation. Gamma-aminobutyric acid (GABA) is a well-known neurotransmitter in the central nervous system, but additionally enhances the sperm acrosome reaction in the rat and cow. However, the detailed effects of GABA concentration on sperm function remain unclear. In this study, we detected the presence of the GABA type A receptor (GABA A) in mouse epididymal sperm by western blot analysis and in the sperm acrosome by immunocytochemistry. We also investigated the effects of GABA on sperm fertilizing ability. We found that GABA facilitated the tyrosine phosphorylation of sperm proteins, which is an index of sperm capacitation. GABA also promoted the acrosome reaction, which was suppressed by a selective GABA A receptor antagonist. We then found that the effective GABA concentration for the acrosome reaction corresponds to sperm concentration, but we did not detect any marked effect of GABA on sperm motility using a computer-assisted sperm analysis system. Using immunohistochemistry, we also detected GABA expression in the epithelia of the mouse uterus and oviduct. Furthermore, we found that the mRNA levels of glutamate decarboxylase (Gad), which generates GABA from L-glutamate, were higher in the oviduct than in the uterus, and that Gad mRNA levels were higher at estrus than at the diestrus stage. These results indicate that the GABA concentration can act as a modulator of the acrosome reaction and sperm capacitation in the female reproductive tract.

Indexed as

Acrosome ReactionAnimalsFemaleFertilizationgamma-Aminobutyric AcidMaleMiceMice, Inbred C57BLSemen AnalysisSperm CapacitationSperm Motilitygamma-Aminobutyric AcidAcrosome reactionCapacitationGamma-aminobutyric acid (GABA)Sperm

Identifiers

PMID31178551
PMCPMC6708848
OpenAlexW2948376862

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.