Evidence map›Paper›PMID 21723971›Full record

ArticleBone2012

Bone marrow fat has brown adipose tissue characteristics, which are attenuated with aging and diabetes.

A Krings, S Rahman, S Huang, Y Lu, P J Czernik, B Lecka-Czernik

Abstract read
In one paragraph

Article in Bone, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 148 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
148citing papers in PubMed, 1 pooled it
10.6field-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

148 citing papers in PubMed, 1 synthesis or guideline pooled it, 259 citations in OpenAlex.

  1. Neutrophils as indicators of obesity-associated inflammation: A systematic review and meta-analysis.Obesity reviews : an official journal of the International Association for the Study of Obesity · 2025
    Pooled it
  2. Review
  3. Mechanical interplay between adipose tissues and disease progression.Bioengineering & translational medicine · 2026
    Review
  4. Review
  5. Review
  6. Article
  7. Review
  8. Review
  9. Article
  10. [Communications biology · 2024
    Article
  11. Review
  12. Review
  13. Fat as a Friend or Foe of the Bone.Current osteoporosis reports · 2024
    Review
  14. Obesity, diabetes and risk of bone fragility: How BMAT behavior is affected by metabolic disturbances and its influence on bone health.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2024
    Review
  15. Review
  16. Article
  17. Review
  18. Article
  19. Article
  20. The benefits of adipocyte metabolism in bone health and regeneration.Frontiers in cell and developmental biology · 2023
    Review

88 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

6 authors at 1 institution in 1 country.

A KringsDepartment of Orthopaedic Surgery, University of Toledo Health Sciences Campus, Toledo, OH 43614, USA. amreikrings@hotmail.de
S Rahman
S Huang
Y Lu
P J Czernik
B Lecka-Czernik
University of Toledo · US

Funding

Bone loss with aging occurs due to increased PPAR-g activity in marrow stem cellsR01AG028935 · NIA · UNIV OF ARKANSAS FOR MED SCIS · PI LECKA-CZERNIK, BEATA ANNA · 2006 to 2010
$1.5M
NIA NIH HHS AG 028935NIA NIH HHS R01 AG028935
6 · The paper itself

Abstract

Fat occupies a significant portion of bone cavity however its function is largely unknown. Marrow fat expands during aging and in conditions which affect energy metabolism, indicating that fat in bone is under similar regulatory mechanisms as other fat depots. On the other hand, its location may determine specific functions in the maintenance of the environment for bone remodeling and hematopoiesis. We have demonstrated that marrow fat has a distinctive phenotype, which resembles both, white and brown adipose tissue (WAT and BAT, respectively). Marrow adipocytes express gene markers of brown adipocytes at levels characteristic for the BAT, including transcription factor Prdm16, and regulators of thermogenesis such as deiodinase 2 (Dio2) and PGC1α. The levels of expression of BAT-specific gene markers are decreased in bone of 24 mo old C57BL/6 and in diabetic yellow agouti A(vy)/a mice implicating functional changes of marrow fat occurring with aging and diabetes. Administration of antidiabetic TZD rosiglitazone, which sensitizes cells to insulin and increases adipocyte metabolic functions, significantly increased both, BAT (UCP1, PGC1α, Dio2, β3AR, Prdm16, and FoxC2) and WAT (adiponectin and leptin) gene expression in marrow of normoglycemic C57BL/6 mice, but failed to increase the expression of BAT, but not WAT, gene markers in diabetic mice. In conclusion, the metabolic phenotype of marrow fat combines both BAT and WAT characteristics. Decrease in BAT-like characteristics with aging and diabetes may contribute to the negative changes in the marrow environment supporting bone remodeling and hematopoiesis.

Indexed as

AdiposityAdipocytesAdipose Tissue, BrownAgingAnimalsBiomarkersBone and BonesBone MarrowCell CountDiabetes MellitusGene Expression RegulationMaleMiceMice, Inbred C57BLOrgan SpecificityPhenotypeBiomarkersRosiglitazoneThiazolidinediones

Identifiers

PMID21723971
PMCPMC3214232
OpenAlexW2107264623

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.