Evidence map›Paper›PMID 32794246›Full record

ArticleFASEB journal : official publication of the Federation of American Societies for Experimental Biology2020

Maresin 1 resolves aged-associated macrophage inflammation to improve bone regeneration.

Rong Huang, Linda Vi, Xiaohua Zong, Gurpreet S Baht

Open access · hybridAbstract read
In one paragraph

Article in FASEB journal : official publication of the Federation of American Societies for Experimental Biology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 1 pooled it
2.9field-weighted citation impact, top 8% 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

28 citing papers in PubMed, 1 synthesis or guideline pooled it, 49 citations in OpenAlex.

  1. Pooled it
  2. Lgr6Genes & diseases · 2026
    Review
  3. Review
  4. Article
  5. Article
  6. The research progress and potential applications ofThe British journal of nutrition · 2025
    Review
  7. Article
  8. Article
  9. Osteoimmunology of Fracture Healing.Current osteoporosis reports · 2024
    Review
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Review
  17. The role of Meteorin-like in skeletal development and bone fracture healing.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2022
    Article
  18. Article
  19. Review
  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

4 authors at 3 institutions in 2 countries.

Rong HuangDuke Molecular Physiology Institute, Duke University, Durham, NC, USA.
Linda ViDivision of Physical Medicine and Rehabilitation, University of Toronto, Toronto, Canada.
Xiaohua ZongDuke Molecular Physiology Institute, Duke University, Durham, NC, USA.
Gurpreet S BahtDuke Molecular Physiology Institute, Duke University, Durham, NC, USA.
Duke University · USDuke University Hospital · USUniversity of Toronto · CA

Funding

Resource Core 3 - Metabolomics CoreP30AG028716 · NIA · DUKE UNIVERSITY · PI Sarah B. Peskoe · 2006 to 2026
$24.6M
Correction of Immune Response Improves Aged Fracture HealingR21AG067245 · NIA · DUKE UNIVERSITY · PI BAHT, GURPREET · 2020 to 2021
$443k
NIA NIH HHS P30 AG028716NIA NIH HHS R21 AG067245
6 · The paper itself

Abstract

Inflammaging is associated with poor tissue regeneration observed in advanced age. Specifically, protracted inflammation after acute injury has been associated with decreased bone fracture healing and increased rates of nonunion in elderly patients. Here, we investigated the efficacy of using Maresin 1 (MaR1), an omega-3 fatty acid-derived pro-resolving agent, to resolve inflammation after tibial fracture injury and subsequently improving aged bone healing. Aged (24-month-old mice) underwent tibial fracture surgery and were either treated with vehicle or MaR1 3 days after injury. Fracture calluses were harvested 7 days, 14 days, 21 days, and 28 days after injury to investigate inflammatory response, cartilage development, bone deposition, and mechanical integrity, respectively. Healing bones from MaR1-treated mice displayed decreased cartilage formation and increased bone deposition which resulted in increased structural stiffness and increased force to fracture in the later stages of repair. In the early stages, MaR1 treatment decreased the number of pro-inflammatory macrophages within the fracture callus and decreased the level of inflammatory biomarkers in circulation. In tissue culture models, MaR1 treatment of bone marrow-derived macrophages from aged mice protected cells form a pro-inflammatory phenotype and induced an anti-inflammatory fate. Furthermore, the secretome of MaR1-treated bone marrow-derived macrophages was identified as osteoinductive, enhancing osteoblast differentiation of bone marrow stromal cells. Our findings here identify resolution of inflammation, and MaR1 itself, to be a point of intervention to improve aged bone healing.

Indexed as

Anti-Inflammatory AgentsDocosahexaenoic AcidsAgingAnimalsBone RegenerationCell DifferentiationCells, CulturedFemaleFracture HealingInflammationMacrophagesMaleMesenchymal Stem CellsMiceTibial Fractures7,14-dihydroxydocosa-4,8,10,12,16,19-hexaenoic acidAnti-Inflammatory AgentsDocosahexaenoic Acidsbonefracture healinginflammagingmacrophageosteoblast

Identifiers

PMID32794246
PMCPMC7719599
OpenAlexW3049535451

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.