Level D· Scientific groundwork from lab and animal studiesAnimal StudyEurope PMCOpen access

Human umbilical cord mesenchymal stem cells improve the survial of flaps by promoting angiogenesis in mice

Ma S., Ni J., Ye D., Kuang Y., Wang Z., Yang L.

Animal Study, published in Eur J Med Res (2025) — 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
Read the A–D evidence level guide

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
Eur J Med Res (2025)
Reported sample size
—
Source database
Europe PMC
PMID
40312717
PMCID
PMC12046903
DOI
10.1186/s40001-025-02602-7

Abstract (original English)

Background Flap necrosis post-operation disturbs surgeons during plastic and reconstructive surgery. This is caused by hypoperfusion and subsequent ischemia-reperfusion injury, where restricted blood flow followed by restored circulation paradoxically exacerbates tissue damage. Mesenchymal stem cells, which show multidirectional differentiation, provide hematopoietic support and are involved in immune regulation and anti-fibrosis, have inspired research on improving the blood supply of flaps. Methods Primary human umbilical cord mesenchymal stem cells (HuMSCs), were obtained and subcultured for expansion. The cells of the third generation were incubated in a gelatin sponge. Thirty Kunming mice were randomly divided into three groups, and saline, HuMSCs, and HuMSCs-CM were injected preoperatively into the skin of the back. The vessel density was assessed on the tenth day. Forty-eight Kunming mice were divided into two groups. Group A was subdivided into the saline group, HuMSCs, and HuMSCs-CM groups and pretreated as described above. In Group B, the intervention was changed from injection to subcutaneous embedding. Random flaps were made on the back in both groups on the tenth day after pretreatment. The survival rate of the flap was calculated on the seventh day. Results HuMSCs-CM significantly increased the microvessel density on the tenth day after pretreatment. The flap surv

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
Surgical FlapsMesenchymal Stem CellsUmbilical CordAnimalsHumansMiceMesenchymal Stem Cell TransplantationNeovascularization, PhysiologicMaleAngiogenesis

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