Evidence map›Paper›PMID 29365042›Full record

ArticleBiology of reproduction2018

Elevated androgen levels induce hyperinsulinemia through increase in Ins1 transcription in pancreatic beta cells in female rats.

Jay S Mishra, Amar S More, Sathish Kumar

Open access · bronzeAbstract read
In one paragraph

Article in Biology of reproduction, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
5.9field-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

23 citing papers in PubMed, 1 synthesis or guideline pooled it, 55 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Review
  5. Juvenile Granulosa Cell Tumor Mimicking HAIR-AN in a 4-year-old: A Case ReportJournal of clinical research in pediatric endocrinology · 2024
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. The role of androgen and its related signals in PCOS.Journal of cellular and molecular medicine · 2021
    Review
  16. Review
  17. Review
  18. Intertwined reproductive endocrinology: Puberty and polycystic ovary syndrome.Current opinion in endocrine and metabolic research · 2020
    Article
  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

3 authors at 2 institutions in 1 country.

Jay S MishraDepartment of Comparative Biosciences and Obstetrics and Gynecology, University of Wisconsin-Madison, Madison, Wisconsin, USA.
Amar S MoreDepartment of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, Texas, USA.
Sathish KumarDepartment of Comparative Biosciences and Obstetrics and Gynecology, University of Wisconsin-Madison, Madison, Wisconsin, USA.
University of Wisconsin–Madison · USThe University of Texas Medical Branch at Galveston · US

Funding

Sex-specific fetal programming of adult vascular dysfunction and hypertensionR01HL119869 · NHLBI · UNIVERSITY OF WISCONSIN-MADISON · PI KUMAR, SATHISH · 2013 to 2017
$1.9M
Vascular AT2R expression and function during pregnancyR01HL134779 · NHLBI · UNIVERSITY OF WISCONSIN-MADISON · PI KUMAR, SATHISH · 2017 to 2020
$1.5M
Developmental programming: influence of sex steroids and mechanismsR01HL102866 · NHLBI · UNIVERSITY OF TEXAS MED BR GALVESTON · PI YALLAMPALLI, CHANDRASEKHAR · 2011 to 2014
$1.5M
NHLBI NIH HHS R01 HL102866NHLBI NIH HHS R01 HL119869NHLBI NIH HHS R01 HL134779
6 · The paper itself

Abstract

Hyperandrogenism is associated with hyperinsulinemia and insulin resistance in adult females. We tested whether androgens dysregulate pancreatic beta cell function to induce hyperinsulinemia through transcriptional regulation of insulin gene (Ins) in the islets. Adult female Wistar rats implanted with dihydrotestosterone (DHT; 7.5-mg, 90-d release) or placebo pellets were examined after 10 weeks. DHT exposure increased plasma DHT levels by 2-fold similar to that in polycystic ovary syndrome in women. DHT exposure induced hyperinsulinemia with increased HOMA-IR index in fasting state and glucose intolerance and exaggerated insulin responses following glucose tolerance test. DHT females had no change in islet number, size and beta cell proliferation/apoptosis but exhibited significant mitochondrial dysfunction (higher ADP/ATP ratio, decreased mtDNA copy number, increased reactive oxygen production and downregulation of mitochondrial biogenesis) and enhanced glucose-stimulated insulin secretion. Ins expression was increased in DHT islets. In vitro incubation of control islets with DHT dose dependently stimulated Ins transcription. Analysis of Ins1 gene revealed a putative androgen responsive element in the promoter. Chromatin-immunoprecipitation assays showed that androgen receptors bind to this element in response to DHT stimulation. Furthermore, reporter assays showed that the promoter element is highly responsive to androgens. Insulin-stimulated glucose uptake in skeletal muscle was decreased with associated decrease in IRβ expression in DHT females. Our studies identified a novel androgen-mediated mechanism for the control of Ins expression via transcriptional regulation providing a molecular mechanism linking elevated androgens and hyperinsulemia. Decreased IRβ expression in the skeletal muscles may contribute, in part, to glucose intolerance in this model.

Indexed as

AndrogensAnimalsApoptosisCell ProliferationDihydrotestosteroneFemaleGlucoseHyperinsulinismInsulinInsulin-Secreting CellsMuscle, SkeletalOxidative StressRatsRats, WistarReactive Oxygen SpeciesReceptors, AndrogenAndrogensDihydrotestosteroneGlucoseInsulinReactive Oxygen SpeciesReceptors, Androgen

Identifiers

PMID29365042
PMCPMC6279097
OpenAlexW2789412809

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.