ArticleScientific reports2026
Protective effects of BPC 157 in rats with experimentally induced lower extremity ischemia-reperfusion injury.
Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Ischemia-reperfusion (I/R) injury remains a major complication in peripheral arterial disease, characterized by oxidative stress, inflammation, and apoptosis. Body Protection Compound-157 (BPC 157), a stable gastric pentadecapeptide, has demonstrated cytoprotective properties in multiple tissues. This study aimed to evaluate the protective effects of BPC 157 in a rat model of lower limb I/R injury. Twenty-four male Wistar albino rats were randomized into four groups (n = 6): SHAM, B (BPC 157 only), IR (I/R), and IRB (I/R + BPC 157). I/R was induced by abdominal aortic clamping for 45 min followed by 2 h of reperfusion. BPC 157 (20 µg/kg, intraperitoneal) was administered at the 45th minute of ischemia in B and IRB groups. Biochemical markers (MDA, SOD, TAS, TOS) were measured in serum. Gene expression of Il-6, Hif-1α, p53, Bcl-2, Bax, and Casp3 was assessed by qRT-PCR, while immunohistochemistry evaluated VEGF, eNOS, IL-6, and Caspase-3 expression. Histopathological changes were scored with hematoxylin-eosin and Masson's trichrome staining. I/R significantly increased MDA, TOS, p53, Bax, Casp3, Hif-1α, Il-6, and histopathological injury scores, while reducing SOD, TAS, and VEGF expression. Bcl-2 mRNA was not significantly reduced by I/R compared with SHAM; however, BPC 157 significantly increased Bcl-2 expression compared with IR. In the IRB group, BPC 157 reduced MDA and TOS, restored SOD and TAS, downregulated p53, Bax, and Casp3, reduced IL-6 and Caspase-3 immunoreactivity, and partially restored VEGF expression. Histological analysis confirmed improved muscle architecture and reduced collagen deposition in IRB compared with IR. BPC 157 appears to exert protective effects against skeletal muscle I/R injury by attenuating oxidative stress, modulating apoptosis, reducing inflammation, and supporting angiogenic activity. These findings suggest that BPC 157 may represent a potential therapeutic candidate for mitigating reperfusion injury; however, further studies with larger cohorts and dose-response evaluations are required to confirm these effects and establish clinical relevance.
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