Evidence map›Paper›PMID 20103743›Full record

ArticleAmerican journal of physiology. Endocrinology and metabolism2010

Dihydrotestosterone alters cyclooxygenase-2 levels in human coronary artery smooth muscle cells.

Kristen L Osterlund, Robert J Handa, Rayna J Gonzales

Abstract read
In one paragraph

Article in American journal of physiology. Endocrinology and metabolism, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
2.2field-weighted citation impact, top 12% 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

13 citing papers in PubMed, 32 citations in OpenAlex.

  1. Review
  2. Review
  3. Sex differences in abdominal aortic aneurysms.American journal of physiology. Heart and circulatory physiology · 2018
    Review
  4. Article
  5. Article
  6. Reactive oxygen species: players in the cardiovascular effects of testosterone.American journal of physiology. Regulatory, integrative and comparative physiology · 2016
    Review
  7. Expression of androgen receptor in coronary artery in the cases of sudden coronary death.International journal of clinical and experimental pathology · 2015
    Article
  8. Review
  9. Review
  10. Article
  11. Article
  12. Article
  13. 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.

Kristen L OsterlundDept. of Basic Medical Sciences, University of Arizona College of Medicine, Phoenix, USA.
Robert J Handa
Rayna J Gonzales
University of Arizona · USColorado State University · US

Funding

SEX DIFFERENCES IN HYPOTHALAMO-PITUITARY-ADRENAL AXISR01NS039951 · NINDS · UNIVERSITY OF ARIZONA · PI HANDA, ROBERT J · 2001 to 2013
$4.3M
NINDS NIH HHS NS-039951
6 · The paper itself

Abstract

Both protective and nonprotective effects of androgens on the cardiovascular system have been reported. Our previous studies show that the potent androgen receptor (AR) agonist dihydrotestosterone (DHT) increases levels of the vascular inflammatory mediator cyclooxygenase (COX)-2 in rodent cerebral arteries independent of an inflammatory stimulus. Little is known about the effects of androgens on inflammation in human vascular tissues. Therefore, we tested the hypothesis that DHT alters COX-2 levels in the absence and presence of induced inflammation in primary human coronary artery smooth muscle cells (HCASMC). Furthermore, we tested the ancillary hypothesis that DHT's effects on COX-2 levels are AR-dependent. Cells were treated with DHT (10 nM) or vehicle for 6 h in the presence or absence of LPS or IL-1beta. Similar to previous observations in rodent arteries, in HCASMC, DHT alone increased COX-2 levels compared with vehicle. This effect of DHT was attenuated in the presence of the AR antagonist bicalutamide. Conversely, in the presence of LPS or IL-1beta, increases in COX-2 were attenuated by cotreatment with DHT. Bicalutamide did not affect this response, suggesting that DHT-induced decreases in COX-2 levels occur independent of AR stimulation. Thus we conclude that DHT differentially influences COX-2 levels under physiological and pathophysiological conditions in HCASMC. This effect of DHT on COX-2 involves AR-dependent and- independent mechanisms, depending on the physiological state of the cell.

Indexed as

Blotting, WesternBrainCells, CulturedCoronary VesselsCyclooxygenase 1Cyclooxygenase 2CytokinesDihydrotestosteroneDinoprostoneEndothelium, VascularEndotoxinsEnzyme-Linked Immunosorbent AssayHumansImmunohistochemistryInterleukin-1betaMyocytes, Smooth MuscleCyclooxygenase 1Cyclooxygenase 2CytokinesDihydrotestosteroneDinoprostoneEndotoxinsInterleukin-1betaReceptors, Androgen

Identifiers

PMID20103743
PMCPMC2853212
OpenAlexW2108677528

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.