Novel Cytoprotective Peptide BPC 157 Heals Perforated Stomachs in Rats

Gastric perforations, severe injuries where a hole forms in the stomach wall, pose significant clinical challenges, often leading to peritonitis and high mortality rates. Current treatments, including proton pump inhibitors (like pantoprazole) and H2-receptor antagonists (like ranitidine), primarily reduce acid secretion but do not directly promote tissue repair. While L-arginine can influence nitric oxide (NO) production, its direct efficacy in severe perforations is limited. This study investigates whether the cytoprotective pentadecapeptide BPC 157 can effectively heal perforated stomachs by modulating the nitric oxide system, offering a novel therapeutic approach beyond conventional acid-suppressing drugs.

BPC 157 demonstrated significantly superior healing effects compared to all other treatments. > BPC 157 at 10 µg/kg reduced the perforation size by an astounding 92% after 7 days, while 10 mg/kg achieved 88% reduction, far surpassing ranitidine (45% reduction) and pantoprazole (55% reduction) (p<0.001). Histological analysis revealed that BPC 157 treatment led to a 3.5-fold increase in granulation tissue formation and a 2.8-fold increase in angiogenesis (new blood vessel growth) compared to controls (p<0.01). Furthermore, BPC 157 normalized the activity of both eNOS (endothelial nitric oxide synthase) and iNOS (inducible nitric oxide synthase), leading to a balanced and beneficial NO production, which was significantly disrupted in the control and L-NAME groups. L-arginine showed a modest 25% improvement, but its effects were not statistically significant compared to BPC 157.