A normothermic perfusion bioreactor to preserve viability of rat groin flaps extracorporally.
Herold C., Reimers K., Allmeling C., Rennekampff HO., Vogt PM.
Animal Study, published in Transplant Proc (2009) — summary generated from the PubMed abstract.
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
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
- Transplant Proc (2009)
- Country
- United States
- Reported sample size
- —
- Source database
- PubMed
- PMID
- 20005404
- DOI
- 10.1016/j.transproceed.2009.09.058
Abstract (original English)
Various attempts have been made to prolong tissue survival ex vivo. To achieve an adequate ex vivo condition for flap perfusion at normothermic temperatures in a bioreactor model, a suitable perfusion solution is necessary. The main purpose of our setting at 37 degrees C was to produce conditions under which multilineage stem cells from adipose tissue could differentiate. This study was designed to evaluate the effect of permanent perfusion on fat flaps of the rat. We elevated an epigastric adipofascial flap based on the inferior superficial epigastric vessels bilaterally in male Lewis rats and connected it to a bioreactor. The system was run by a cable pump and filled either with Hannover or Eurocollin's solution with or without permanent perfusion for 10 days. The lactate dehydrogenase (LDH) level in each solution was analyzed every 48 hours, assuming that injured cells emit this enzyme to the extracellular space and consequently to the perfusion solution. Histological samples were analyzed at the end of each trial. There was a continuous significantly greater LDH level (P < .001) in bioreactors perfused with Hannover than with Eurocollin's solution. The nonperfused bioreactors showed a similar finding with lower levels compared with their perfused equivalents. Histological examination revealed significantly better preserved (P < .001) fat tissue structures in Hannover soluti
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.
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