Level D· Scientific groundwork from lab and animal studiesAnimal StudyPubMed

Intratunical injection of stromal vascular fraction prevents fibrosis in a rat model of Peyronie's disease.

Castiglione F., Hedlund P., Weyne E., Hakim L., Montorsi F., Salonia A.

Animal Study, published in BJU Int (2019) — 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
BJU Int (2019)
Country
England
Reported sample size
—
Source database
PubMed
PMID
30267556
DOI
10.1111/bju.14570
Citations
14

Abstract (original English)

To investigate whether local injection of autologous adipose stromal vascular fraction (SVF) can prevent the development of fibrosis and elastosis in the tunica albuginea (TA) using a rat model of the acute phase of Peyronie's disease (PD). A total of 24 male 12-week-old Sprague-Dawley rats were divided into three equal groups: sham; PD without treatment (transforming growth factor-β [TGF -β]); and PD treated with SVF 1 day after disease induction. Sham rats received two injections of vehicle into the TA 1 day apart. TGF -β rats received TGF- β1 injection and injection of vehicle 1 day later. SVF rats received TGF-β1 injection, followed by SVF 1 day later. One month after treatment, all rats underwent measurement of intracavernosal pressure and mean arterial pressure during electrostimulation of the cavernous nerve. The rats were then killed and penises were harvested for histology and Western blot analysis. Erectile function was moderately reduced in the TGF-β group and was significantly improved after SVF treatment (P < 0.05). PD rats developed areas of fibrosis with a significant upregulation of collagen III, collagen I and elastin protein expression. These fibrotic changes were prevented when treated with SVF. Local injection of SVF may represent treatment for the acute phase of PD.

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
AnimalsDisease Models, AnimalInjectionsMalePenile IndurationRatsRats, Sprague-DawleyStromal CellsTransforming Growth Factor beta1

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