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Stable gastric pentadecapeptide BPC 157 in the treatment of colitis and ischemia and reperfusion in rats: New insights.

AbstractAIM:
To provide new insights in treatment of colitis and ischemia and reperfusion in rats using stable gastric pentadecapeptide BPC 157.
METHODS:
Medication [BPC 157, L-NAME, L-arginine (alone/combined), saline] was bath at the blood deprived colon segment. During reperfusion, medication was BPC 157 or saline. We recorded (USB microscope camera) vessel presentation through next 15 min of ischemic colitis (IC-rats) or reperfusion (removed ligations) (IC + RL-rats); oxidative stress as MDA (increased (IC- and IC + RL-rats)) and NO levels (decreased (IC-rats); increased (IC + RL-rats)) in colon tissue. IC + OB-rats [IC-rats had additional colon obstruction (OB)] for 3 d (IC + OB-rats), then received BPC 157 bath.
RESULTS:
Commonly, in colon segment (25 mm, 2 ligations on left colic artery and vein, 3 arcade vessels within ligated segment), in IC-, IC + RL-, IC + OB-rats, BPC 157 (10 μg/kg) bath (1 mL/rat) increased vessel presentation, inside/outside arcade interconnections quickly reappeared, mucosal folds were preserved and the pale areas were small and markedly reduced. BPC 157 counteracted worsening effects induced by L-NAME (5 mg) and L-arginine (100 mg). MDA- and NO-levels were normal in BPC 157 treated IC-rats and IC + RL-rats. In addition, on day 10, BPC 157-treated IC + OB-rats presented almost completely spared mucosa with very small pale areas and no gross mucosal defects; the treated colon segment was of normal diameter, and only small adhesions were present.
CONCLUSION:
BPC 157 is a fundamental treatment that quickly restores blood supply to the ischemically injured area and rapidly activates collaterals. This effect involves the NO system.
AuthorsAntonija Duzel, Josipa Vlainic, Marko Antunovic, Dominik Malekinusic, Borna Vrdoljak, Mariam Samara, Slaven Gojkovic, Ivan Krezic, Tinka Vidovic, Zdenko Bilic, Mario Knezevic, Marko Sever, Nermin Lojo, Antonio Kokot, Marijan Kolovrat, Domagoj Drmic, Jaksa Vukojevic, Tamara Kralj, Katarina Kasnik, Marko Siroglavic, Sven Seiwerth, Predrag Sikiric
JournalWorld journal of gastroenterology (World J Gastroenterol) Vol. 23 Issue 48 Pg. 8465-8488 (Dec 28 2017) ISSN: 2219-2840 [Electronic] United States
PMID29358856 (Publication Type: Journal Article)
Chemical References
  • Anti-Ulcer Agents
  • Peptide Fragments
  • Proteins
  • Nitric Oxide
  • Malondialdehyde
  • BPC 157
  • Arginine
  • NG-Nitroarginine Methyl Ester
Topics
  • Animals
  • Anti-Ulcer Agents (pharmacology, therapeutic use)
  • Arginine (therapeutic use)
  • Colitis (blood, drug therapy, etiology, pathology)
  • Collateral Circulation (drug effects)
  • Colon (blood supply, drug effects, metabolism)
  • Disease Models, Animal
  • Humans
  • Male
  • Malondialdehyde (blood)
  • NG-Nitroarginine Methyl Ester (therapeutic use)
  • Nitric Oxide (analysis)
  • Oxidative Stress (drug effects)
  • Peptide Fragments (pharmacology, therapeutic use)
  • Proteins (pharmacology, therapeutic use)
  • Rats
  • Rats, Wistar
  • Reperfusion Injury (blood, drug therapy, etiology, pathology)

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