BPC-157 · research summary

Effects of BPC-157 and TB-500 on Achilles tendon healing in rats: A histopathological and biomechanical study.

Joint diseases and related surgery · 2026. Summary drawn from the study's abstract. Each statement is followed by the exact sentence it comes from. This is a research summary, not medical advice.

Study type

Exploratory rat model study evaluating Achilles tendon healing
“In this exploratory rat model study, both BPC-157 and TB-500 were associated with improved histopathological parameters and extracellular matrix organization during early Achilles tendon repair, with TB-500 additionally demonstrating a significant biomechanical advantage at four weeks.”

Subjects

Male Sprague-Dawley rats aged 12 weeks
“Thirty-two male Sprague-Dawley rats, each aged 12 weeks and weighing approximately 330 g, underwent standardized Achilles tendon transection and repair and were randomly assigned to four groups, with eight rats in each group: control, BPC-157 (10 µg/kg/day), TB-500 (60 µg/kg/day), and combined BPC-157 + TB-500 (BPC + TB).”

Sample size

32 rats total, 8 per group
“Thirty-two male Sprague-Dawley rats, each aged 12 weeks and weighing approximately 330 g, underwent standardized Achilles tendon transection and repair and were randomly assigned to four groups, with eight rats in each group: control, BPC-157 (10 µg/kg/day), TB-500 (60 µg/kg/day), and combined BPC-157 + TB-500 (BPC + TB).”

Duration

4 weeks postoperatively
“Treatments were administered intraperitoneally for four weeks postoperatively.”

Reported findings

TB-500 group showed statistically significant higher maximum load to failure compared to controls
“Biomechanical testing revealed higher maximum load to failure values in the BPC-157 and TB-500 groups compared to controls, reaching statistical significance in the TB-500 group (p < 0.05).”
TB-500 and combined groups showed significantly lower histopathological scores indicating improved tendon architecture
“Histopathological evaluation demonstrated significantly lower total Bonar scores in the TB-500 group (p = 0.016) and significantly lower total Movin scores in the TB-500 and BPC + TB groups (p = 0.017 and p = 0.040, respectively) relative to controls, indicating improved tendon architecture, collagen alignment, and reduced degenerative changes.”
Combined treatment did not provide additional benefits over single agents
“Combined BPC-157 and TB-500 treatment did not confer additional benefits compared to either agent alone.”

Source: PubMed 42542926 · DOI 10.52312/jdrs.2026.2951 · all study summaries

Study type

Exploratory rat model study evaluating Achilles tendon healing

“In this exploratory rat model study, both BPC-157 and TB-500 were associated with improved histopathological parameters and extracellular matrix organization during early Achilles tendon repair, with TB-500 additionally demonstrating a significant biomechanical advantage at four weeks.”

Subjects

Male Sprague-Dawley rats aged 12 weeks

“Thirty-two male Sprague-Dawley rats, each aged 12 weeks and weighing approximately 330 g, underwent standardized Achilles tendon transection and repair and were randomly assigned to four groups, with eight rats in each group: control, BPC-157 (10 µg/kg/day), TB-500 (60 µg/kg/day), and combined BPC-157 + TB-500 (BPC + TB).”

Sample size

32 rats total, 8 per group

“Thirty-two male Sprague-Dawley rats, each aged 12 weeks and weighing approximately 330 g, underwent standardized Achilles tendon transection and repair and were randomly assigned to four groups, with eight rats in each group: control, BPC-157 (10 µg/kg/day), TB-500 (60 µg/kg/day), and combined BPC-157 + TB-500 (BPC + TB).”

Reported findings

TB-500 group showed statistically significant higher maximum load to failure compared to controls

“Biomechanical testing revealed higher maximum load to failure values in the BPC-157 and TB-500 groups compared to controls, reaching statistical significance in the TB-500 group (p < 0.05).”

TB-500 and combined groups showed significantly lower histopathological scores indicating improved tendon architecture

“Histopathological evaluation demonstrated significantly lower total Bonar scores in the TB-500 group (p = 0.016) and significantly lower total Movin scores in the TB-500 and BPC + TB groups (p = 0.017 and p = 0.040, respectively) relative to controls, indicating improved tendon architecture, collagen alignment, and reduced degenerative changes.”

Combined treatment did not provide additional benefits over single agents

“Combined BPC-157 and TB-500 treatment did not confer additional benefits compared to either agent alone.”