| Autor: |
Iannuzzo F; Department of Pharmacy, G. d'Annunzio University of Chieti-Pescara, 66100 Chieti, Italy., Cicatiello AG; Department of Clinical Medicine and Surgery, University of Naples Federico II, 80131 Napoli, Italy., Sagliocchi S; Department of Clinical Medicine and Surgery, University of Naples Federico II, 80131 Napoli, Italy., Schiano E; Healthcare Food Research Center, Inventia Biotech s.r.l., S. S. Sannitica, 81020 Caserta, Italy., Nappi A; Department of Clinical Medicine and Surgery, University of Naples Federico II, 80131 Napoli, Italy., Miro C; Department of Clinical Medicine and Surgery, University of Naples Federico II, 80131 Napoli, Italy., Stornaiuolo M; Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano 59, 80131 Napoli, Italy., Mollica A; Department of Pharmacy, G. d'Annunzio University of Chieti-Pescara, 66100 Chieti, Italy., Tenore GC; Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano 59, 80131 Napoli, Italy., Dentice M; Department of Clinical Medicine and Surgery, University of Naples Federico II, 80131 Napoli, Italy., Novellino E; Healthcare Food Research Center, Inventia Biotech s.r.l., S. S. Sannitica, 81020 Caserta, Italy.; Faculty of Medicine and Surgery, Catholic University of the Sacred Heart, 00168 Roma, Italy. |
| Abstrakt: |
Peripheral nerve injuries lead to severe functional impairments and long recovery times, with limited effectiveness and accessibility of current treatments. This has increased interest in natural bioactive compounds, such as ursolic acid (UA). Our study evaluated the effect of an oleolyte rich in UA from white grape pomace (WGPO) on neuronal regeneration in mice with induced sciatic nerve resection, administered concurrently with the induced damage (the WGPO group) and 10 days prior (the PRE-WGPO group). The experiment was monitored at two-time points (4 and 10 days) after injury. After 10 days, the WGPO group demonstrated a reduction in muscle atrophy, evidenced by an increased number and diameter of muscle fibers and a decreased Atrogin-1 and Murf-1 expression relative to the denervated control. It was also observed that 85.7% of neuromuscular junctions (NMJs) were fully innervated, as indicated by the colocalization of α-bungarotoxin and synaptophysin, along with the significant modulation of Oct-6 and S-100. The PRE-WGPO group showed a more beneficial effect on nerve fiber reformation, with a significant increase in myelin protein zero and 95.2% fully innervated NMJs, and a pro-hypertrophic effect in resting non-denervated muscles. Our findings suggest WGPO as a potential treatment for various conditions that require the repair of nerve and muscle injuries. |
