Evidence mapPaperPMID 23349486Full record

Trial reportDiabetes2013

Reduced adipose tissue macrophage content is associated with improved insulin sensitivity in thiazolidinedione-treated diabetic humans.

Sudha Koppaka, Sylvia Kehlenbrink, Michelle Carey, Weijie Li, Elizabeth Sanchez, Do-Eun Lee, Hanna Lee, Julie Chen, Emilce Carrasco, Preeti Kishore and 2 more

Open access · hybridAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Diabetes, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 57 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
57citing papers in PubMed, 2 pooled it
6.7field-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

57 citing papers in PubMed, 2 syntheses or guidelines pooled it, 94 citations in OpenAlex.

  1. Impact of DPP-4 Inhibitors on Interleukin Levels in Type 2 Diabetes Mellitus.The Journal of clinical endocrinology and metabolism · 2025
    Pooled it
  2. Pooled it
  3. Trial
  4. Trial
  5. Insulin sensitizing and anti-inflammatory effects of thiazolidinediones are heightened in obese patients.Journal of investigative medicine : the official publication of the American Federation for Clinical Research · 2013
    Trial
  6. Review
  7. Article
  8. Lipid metabolism in MASLD and MASH: From mechanism to the clinic.JHEP reports : innovation in hepatology · 2024
    Review
  9. Review
  10. Review
  11. Article
  12. Article
  13. Review
  14. Article
  15. Review
  16. miR-467 regulates inflammation and blood insulin and glucose.Journal of cellular and molecular medicine · 2021
    Article
  17. Article
  18. Article
  19. Article
  20. PPAR research · 2021
    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

12 authors at 1 institution in 1 country.

Sudha KoppakaDepartment of Medicine Diabetes Research and Training Center, Albert Einstein College of Medicine, Bronx, New York, USA.
Sylvia Kehlenbrink
Michelle Carey
Weijie Li
Elizabeth Sanchez
Do-Eun Lee
Hanna Lee
Julie Chen
Emilce Carrasco
Preeti Kishore
Kehao Zhang
Meredith Hawkins
Albert Einstein College of Medicine · US

Funding

PROMOTING OPHTHALMIC SCREENING IN MANAGED CAREP60DK020541 · YESHIVA UNIVERSITY · 1986 to 2005
$12.6M
WEIGHT MGT &NUTRITION FOR PRE-/PERIMENOPAUSAL BREAST CANCER SURVIVORSM01RR012248 · YESHIVA UNIVERSITY · 1997 to 2005
$12.5M
Excess nutrients and the metabolic syndrome of agingP01AG021654 · YESHIVA UNIVERSITY · 2003 to 2005
$6.3M
NYR-Diabetes Research Center (NYR-DRC)P30DK020541 · ALBERT EINSTEIN COLLEGE OF MEDICINE · 2025 to 2025
$2.4M
BIOCHEMICAL MECHANISMS OF IN VIVO INSULIN RESISTANCER01DK048321 · YESHIVA UNIVERSITY · 1994 to 2003
$1.7M
Biochemical Mechanisms of In Vivo Insulin ResistanceR37DK048321 · ALBERT EINSTEIN COL OF MED YESHIVA UNIV · 2004 to 2005
$911k
Restoring Central Regulation of Glucose Production in Type 2 DiabetesR01DK069861 · ALBERT EINSTEIN COLLEGE OF MEDICINE · 2025 to 2025
$677k
NCRR NIH HHS M01 RR012248NIA NIH HHS P01 AG021654NIDDK NIH HHS DK-069861NIDDK NIH HHS DK-48321NIDDK NIH HHS P30 DK020541NIDDK NIH HHS P60 DK020541NIDDK NIH HHS R01 DK048321NIDDK NIH HHS R01 DK069861NIDDK NIH HHS R37 DK048321NIDDK NIH HHS R56 DK069861
6 · The paper itself

Abstract

Obesity is associated with increased adipose tissue macrophage (ATM) infiltration, and rodent studies suggest that inflammatory factors produced by ATMs contribute to insulin resistance and type 2 diabetes. However, a relationship between ATM content and insulin resistance has not been clearly established in humans. Since thiazolidinediones attenuate adipose tissue inflammation and improve insulin sensitivity, we examined the temporal relationship of the effects of pioglitazone on these two parameters. The effect of 10 and 21 days of pioglitazone treatment on insulin sensitivity in 26 diabetic subjects was assessed by hyperinsulinemic-euglycemic clamp studies. Because chemoattractant factors, cytokines, and immune cells have been implicated in regulating the recruitment of ATMs, we studied their temporal relationship to changes in ATM content. Improved hepatic and peripheral insulin sensitivity was seen after 21 days of pioglitazone. We found early reductions in macrophage chemoattractant factors after only 10 days of pioglitazone, followed by a 69% reduction in ATM content at 21 days and reduced ATM activation at both time points. Although markers for dendritic cells and neutrophils were reduced at both time points, there were no significant changes in regulatory T cells. These results are consistent with an association between adipose macrophage content and systemic insulin resistance in humans.

Indexed as

Adipose TissueFemaleFlow CytometryHumansHypoglycemic AgentsMacrophagesMaleMiddle AgedObesityPioglitazoneThiazolidinedionesHypoglycemic AgentsPioglitazoneThiazolidinediones

Identifiers

PMID23349486
PMCPMC3661618
OpenAlexW2119651601

What Socratic holds

Textmetadata
LicenceCC BY-NC-ND
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 Socratic graph.