Evidence map›Paper›PMID 28507119›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2017

Regulation of the sperm calcium channel CatSper by endogenous steroids and plant triterpenoids.

Nadja Mannowetz, Melissa R Miller, Polina V Lishko

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
63citing papers in PubMed, 1 pooled it
13.0field-weighted citation impact, top 1% 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

63 citing papers in PubMed, 1 synthesis or guideline pooled it, 118 citations in OpenAlex.

  1. The Catsper channel and its roles in male fertility: a systematic review.Reproductive biology and endocrinology : RB&E · 2017
    Pooled it
  2. Regulation of spermatozoal capacitation by serotonin.The Journal of reproduction and development · 2026
    Review
  3. Article
  4. Review
  5. Sperm Motility Is Modulated by FInternational journal of molecular sciences · 2025
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. The sperm-specific KFrontiers in cell and developmental biology · 2024
    Article
  11. Review
  12. Article
  13. Article
  14. Review
  15. Non-Hormonal Contraception.Journal of clinical medicine · 2023
    Review
  16. Article
  17. Pharmacological Evidence Suggests That Slo3 Channel Is the Principal KInternational journal of molecular sciences · 2023
    Article
  18. Alterations in Pregnenolone and Testosterone Levels in Male Shift Workers.International journal of environmental research and public health · 2023
    Article
  19. Radiometric Assay of ABHD2 Activity.Methods in molecular biology (Clifton, N.J.) · 2023
    Article
  20. Article

3 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Nadja MannowetzDepartment of Molecular and Cell Biology, University of California, Berkeley, CA 94720.
Melissa R MillerDepartment of Molecular and Cell Biology, University of California, Berkeley, CA 94720.
Polina V LishkoDepartment of Molecular and Cell Biology, University of California, Berkeley, CA 94720 lishko@berkeley.edu.ORCID 0000-0003-3140-2769
University of California, Berkeley · US

Funding

Molecular identity of human sperm potassium channel and its role in male fertilityR01GM111802 · NIGMS · UNIVERSITY OF CALIFORNIA BERKELEY · PI LISHKO, POLINA V, SMITH, JAMES F. · 2015 to 2019
$2.2M
Bioactive lipid profiling of mammalian spermatozoaR21HD081403 · NICHD · UNIVERSITY OF CALIFORNIA BERKELEY · PI LISHKO, POLINA V · 2015 to 2016
$429k
NICHD NIH HHS R21 HD081403NIGMS NIH HHS R01 GM111802
6 · The paper itself

Abstract

The calcium channel of sperm (CatSper) is essential for sperm hyperactivated motility and fertility. The steroid hormone progesterone activates CatSper of human sperm via binding to the serine hydrolase ABHD2. However, steroid specificity of ABHD2 has not been evaluated. Here, we explored whether steroid hormones to which human spermatozoa are exposed in the male and female genital tract influence CatSper activation via modulation of ABHD2. The results show that testosterone, estrogen, and hydrocortisone did not alter basal CatSper currents, whereas the neurosteroid pregnenolone sulfate exerted similar effects as progesterone, likely binding to the same site. However, physiological concentrations of testosterone and hydrocortisone inhibited CatSper activation by progesterone. Additionally, testosterone antagonized the effect of pregnenolone sulfate. We have also explored whether steroid-like molecules, such as the plant triterpenoids pristimerin and lupeol, affect sperm fertility. Interestingly, both compounds competed with progesterone and pregnenolone sulfate and significantly reduced CatSper activation by either steroid. Furthermore, pristimerin and lupeol considerably diminished hyperactivation of capacitated spermatozoa. These results indicate that (

Indexed as

Calcium ChannelsContraceptive Agents, MaleEstradiolFemaleFertilityHumansHydrocortisoneHydrolasesIn Vitro TechniquesKineticsLupanesMalePentacyclic TriterpenesPhytosterolsPregnenoloneSpermatozoaABHD2 protein, humanCalcium ChannelsCATSPER1 protein, humancelastrolContraceptive Agents, MaleEstradiolHydrocortisoneHydrolasesLupaneslupeolPentacyclic TriterpenesPhytosterolsPregnenolonepregnenolone sulfateSteroidsTestosteroneTriterpenesCatSperlupeolpristimerinsteroidstriterpenoids

Identifiers

PMID28507119
PMCPMC5465908
OpenAlexW2616366890

What OpenQuestion holds

Textmetadata
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.