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Valproic acid and bladder healing: an experimental study in rats.
Maria DE Lourdes Pessole Biondo-Simões1, Moacir Oliveira Dall'antonia1, Matheus Prince Goehr1
1- Universidade Federal do Paraná, Técnica Cirúrgica e Cirurgia Experimental - Curitiba - PR - Brasil.
Revista Do Colegio Brasileiro De Cirurgioes
|November 30, 2022
Summary
Valproic acid (VPA) treatment in rats reduced bladder healing by decreasing collagen and angiogenesis, yet did not compromise organ integrity. This epigenetic drug impacts wound repair mechanisms.
Area of Science:
- Regenerative Medicine
- Pharmacology
- Histology
Background:
- Epigenetic drugs, such as valproic acid (VPA), modulate gene expression.
- Understanding VPA's impact on tissue repair is crucial for its therapeutic applications.
- Bladder healing involves complex processes including inflammation, collagen synthesis, and angiogenesis.
Purpose of the Study:
- To investigate the effects of valproic acid (VPA) on the bladder healing process in a rat model.
- To assess VPA's influence on key histological markers of wound repair.
Main Methods:
- Twenty male Wistar rats were divided into experimental (VPA-treated) and control groups.
- Healing was evaluated on days 3 and 7 post-injury.
- Histological analysis included inflammatory reaction, collagen synthesis (Types I and III), and angiogenesis (CD34, SMA markers).
Main Results:
- VPA treatment resulted in increased subacute inflammation on day 7 compared to controls.
- Collagen I and III synthesis showed varied results, with some indicators higher in VPA-treated rats on day 7, while others were lower.
- VPA significantly reduced angiogenesis, with fewer vessels observed on both days 3 and 7.
Conclusions:
- Valproic acid (VPA) alters the bladder healing process in rats.
- The alterations include reduced collagen density and angiogenic activity.
- Despite these changes, VPA treatment did not compromise the overall integrity of the bladder organ.
