Evidence map›Paper›PMID 28747539›Full record

ReviewReproduction (Cambridge, England)2017

Steroidogenesis in Leydig cells: effects of aging and environmental factors.

Yiyan Wang, Fenfen Chen, Leping Ye, Barry Zirkin, Haolin Chen

Open access · bronzeAbstract readReview
In one paragraph

Review in Reproduction (Cambridge, England), 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 106 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
106citing papers in PubMed, 1 pooled it
10.8field-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

106 citing papers in PubMed, 1 synthesis or guideline pooled it, 238 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Therapeutic Potential of Solanum macrocarpon in Uterine Leiomyoma: In Vivo and In Silico Approaches.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2026
    Article
  4. Article
  5. Review
  6. Article
  7. Endocrine Disruption and Male Fertility.Current environmental health reports · 2026
    Review
  8. Oxidative Stress and Male Reproductive Health-First Edition.Antioxidants (Basel, Switzerland) · 2026
    Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Review
  15. Mechanisms of Leydig Cell Aging and Obesity-Related Hypogonadism in Men: A Review.Medical science monitor : international medical journal of experimental and clinical research · 2025
    Review
  16. Article
  17. Review
  18. Review
  19. Article
  20. Article

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

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 3 institutions in 2 countries.

Yiyan WangThe Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical UniversityWenzhou, Zhejiang, China.
Fenfen ChenThe Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical UniversityWenzhou, Zhejiang, China.
Leping YeThe Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical UniversityWenzhou, Zhejiang, China.
Barry ZirkinDepartment of Biochemistry and Molecular BiologyJohns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA.
Haolin ChenThe Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical UniversityWenzhou, Zhejiang, China hchen13@jhu.edu.
Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University · CNWenzhou Medical University · CNJohns Hopkins University · US

Funding

Aging and Leydig Cell FunctionR37AG021092 · NIA · JOHNS HOPKINS UNIVERSITY · PI ZIRKIN, BARRY R · 2006 to 2015
$4.0M
AGING AND LEYDIG CELL FUNCTIONR01AG021092 · NIA · JOHNS HOPKINS UNIVERSITY · PI ZIRKIN, BARRY R · 2002 to 2019
$3.1M
Hypogonadism in Men: Is It Reversible?R21AG051259 · NIA · JOHNS HOPKINS UNIVERSITY · PI ZIRKIN, BARRY R · 2016 to 2017
$446k
NIA NIH HHS R01 AG021092NIA NIH HHS R21 AG051259NIA NIH HHS R37 AG021092
6 · The paper itself

Abstract

Serum testosterone (TS) levels decrease with aging in both humans and rodents. Using the rat as a model system, it was found that age-related reductions in serum TS were not due to loss of Leydig cells, but rather to the reduced ability of the Leydig cells to produce TS in response to luteinizing hormone (LH). Detailed analyses of the steroidogenic pathway have suggested that two defects along the pathway, LH-stimulated cAMP production and cholesterol transport to and into the mitochondria, are of particular importance in age-related reductions in TS production. Although the mechanisms involved in these defects are far from certain, increasing oxidative stress appears to play a particularly important role. Interestingly, increased oxidative stress also appears to be involved in the suppressive effects of endocrine disruptors on Leydig cell TS production.

Indexed as

EnvironmentAge FactorsAgingAnimalsCholesterolCyclic AMPEndocrine DisruptorsHumansLeydig CellsLuteinizing HormoneMaleMitochondriaOxidative StressTestosteroneCholesterolCyclic AMPEndocrine DisruptorsLuteinizing HormoneTestosteroneagingendocrine disruptorsLeydig celloxidative stresssteroidogenesis

Identifiers

PMID28747539
PMCPMC5731485
OpenAlexW2737852119

What OpenQuestion holds

Textmetadata
LicenceTDM
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.