Level D· Scientific groundwork from lab and animal studiesAnimal StudyPubMed

Estrogen as a novel agent for induction of adipose-derived mesenchymal stem cells for osteogenic differentiation: in vivo bone tissue-engineering study.

Calis M., Demirtas TT., Atilla P., Tatar İ., Ersoy O., Irmak G.

Animal Study, published in Plast Reconstr Surg (2014) — summary generated from the PubMed abstract.

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Level D· Scientific groundwork from lab and animal studiesEvidence level of this study

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

  • Level A · Stronger Clinical Evidence
  • Level B · Emerging clinical evidence with positive signals
  • Level C · Early human research exploring benefits
  • Level D · Scientific groundwork from lab and animal studies
  • Emerging · Emerging topic under active research
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This page is generated from the PubMed record. The Thai description is an automated summary of bibliographic fields and the abstract, not a full translation, and is not medical advice.

Study type
Animal Study
Journal
Plast Reconstr Surg (2014)
Country
United States
Reported sample size
—
Source database
PubMed
PMID
24675202
DOI
10.1097/PRS.0000000000000056
Citations
14

Abstract (original English)

This study investigated whether the in vivo osteogenic differentiation potential of adipose-derived mesenchymal stem cells is enhanced by 17β-estradiol. Thirty Sprague-Dawley rats were randomized and divided into five experimental groups. For the surgical procedure, biparietal full-thickness bone defects (7 mm in diameter) were created. A chitosan-hydroxyapatite scaffold was used as the vehicle system for 17β-estradiol-loaded nanoparticles and adipose-derived mesenchymal stem cells. The first group, the blank defect group, was the control group. The defects were filled with either scaffold, estradiol, and scaffold; scaffold and adipose-derived mesenchymal stem cells; or estradiol, scaffold, and adipose-derived mesenchymal stem cells as experimental groups. The rats were killed at the end of weeks 4 and 12, and their calvariae were harvested for histologic and microtomographic evaluation. Micro-computed tomographic evaluation of estradiol, scaffold, and adipose-derived mesenchymal stem cells revealed the highest median value (82.59 ± 17.17), and the difference was significant compared with the blank defect group (p = 0.004). Histologic samples demonstrated a significant difference between experimental groups for bone defect repair at the end of weeks 4 and 12 (p = 0.003 and p < 0.001). The estradiol, scaffold, and adipose-derived mesenchymal stem cell group had the highest media

What this study does not prove

  • • This study does not prove SVF is an approved treatment or a replacement for standard care.
  • • This is preclinical work; animal or laboratory results cannot be applied to humans.

Evidence level

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

How we grade evidence
AnimalsCell DifferentiationEstradiolMesenchymal Stem CellsNanoparticlesOsteogenesisRatsRats, Sprague-DawleyTissue EngineeringTissue Scaffolds

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