Evidence map›Paper›PMID 22547568›Full record

ArticleEndocrinology2012

Androgen effects on adipose tissue architecture and function in nonhuman primates.

Oleg Varlamov, Ashley E White, Julie M Carroll, Cynthia L Bethea, Arubala Reddy, Ov Slayden, Robert W O'Rourke, Charles T Roberts

Open access · bronzeAbstract read
In one paragraph

Article in Endocrinology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed, 1 pooled it
4.0field-weighted citation impact, top 6% 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

41 citing papers in PubMed, 1 synthesis or guideline pooled it, 77 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Review
  4. Article
  5. Article
  6. Article
  7. Adipose Tissue Dysfunction and Obesity-Related Male Hypogonadism.International journal of molecular sciences · 2022
    Review
  8. Review
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. The Effect of Testosterone Replacement on Intramedullary, Inguinal and Visceral Fat in Ovariectomized Rats.Revista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia · 2020
    Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Physiology (Bethesda, Md.) · 2017
    Review
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

8 authors at 3 institutions in 1 country.

Oleg VarlamovDivision of Neuroscience, Oregon National Primate Research Center, 505 NW 185th Avenue, Beaverton, Oregon 97006, USA.
Ashley E White
Julie M Carroll
Cynthia L Bethea
Arubala Reddy
Ov Slayden
Robert W O'Rourke
Charles T Roberts
Oregon National Primate Research Center · USZRT Laboratory · USUniversity of Portland · US

Funding

Upgrade of confocal microscopy at the Oregon National Primate Research CenterP51OD011092 · OD · OREGON HEALTH & SCIENCE UNIVERSITY · PI Bonnie J. Nagel · 2012 to 2026
$203.9M
LIGHT and Adipose Tissue Inflammation in Human ObesityK08DK074397 · NIDDK · OREGON HEALTH & SCIENCE UNIVERSITY · PI O'ROURKE, ROBERT W · 2008 to 2012
$744k
Laser Scanning Confocal MicroscopeS10RR024585 · NCRR · OREGON HEALTH & SCIENCE UNIVERSITY · PI CORNEA, ANDA N. · 2008 to 2008
$443k
Adipose tissue NK cells and inflammaton and insulin resistance in obesityR03DK095050 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI O'ROURKE, ROBERT W · 2012 to 2013
$152k
NCRR NIH HHS S10 RR024585NCRR NIH HHS S10RR024585NIDDK NIH HHS K08 DK074397NIDDK NIH HHS K08DK074397NIDDK NIH HHS R03 DK095050NIH HHS OD011092NIH HHS P51 OD011092
6 · The paper itself

Abstract

The differential association of hypoandrogenism in men and hyperandrogenism in women with insulin resistance and obesity suggests that androgens may exert sex-specific effects on adipose and other tissues, although the underlying mechanisms remain poorly understood. Moreover, recent studies also suggest that rodents and humans may respond differently to androgen imbalance. To achieve better insight into clinically relevant sex-specific mechanisms of androgen action, we used nonhuman primates to investigate the direct effects of gonadectomy and hormone replacement on white adipose tissue. We also employed a novel ex vivo approach that provides a convenient framework for understanding of adipose tissue physiology under a controlled tissue culture environment. In vivo androgen deprivation of males did not result in overt obesity or insulin resistance but did induce the appearance of very small, multilocular white adipocytes. Testosterone replacement restored normal cell size and a unilocular phenotype and stimulated adipogenic gene transcription and improved insulin sensitivity of male adipose tissue. Ex vivo studies demonstrated sex-specific effects of androgens on adipocyte function. Female adipose tissue treated with androgens displayed elevated basal but reduced insulin-dependent fatty acid uptake. Androgen-stimulated basal uptake was greater in adipose tissue of ovariectomized females than in adipose tissue of intact females and ovariectomized females replaced with estrogen and progesterone in vivo. Collectively, these data demonstrate that androgens are essential for normal adipogenesis in males and can impair essential adipocyte functions in females, thus strengthening the experimental basis for sex-specific effects of androgens in adipose tissue.

Indexed as

AdipocytesAdipose TissueAndrogensAnimalsBody WeightFemaleHormonesInsulinMacaca mulattaMaleMicroscopy, ConfocalOvaryPhenotypePlacebosPrimatesTestosteroneAndrogensHormonesInsulinPlacebosTestosterone

Identifiers

PMID22547568
PMCPMC3380299
OpenAlexW1999917877

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.