Summary
Host Chloe Porter, an engineer and former lab research scientist, delivers a detailed deep dive into gut anatomy and six peptides that support gut healing. She walks through the layers of the gut lining from lumen to muscularis mucosae, covering tight junctions, the zonulin pathway, and how gluten triggers increased intestinal permeability. The episode covers three primary gut-healing peptides: larazotide acetate (AT-1001) which blocks zonulin receptors to prevent tight junction opening, KPV which is an anti-inflammatory tripeptide fragment of alpha-MSH that reduces gut inflammation, and BPC-157 which supports gut barrier integrity, protects against stomach ulcers, and counteracts NSAID damage. She also touches on peptide bioregulators for digestive organ support.
Key Points
- Larazotide acetate (AT-1001) is a zonulin receptor antagonist that prevents tight junction opening and increased intestinal permeability
- In a randomized double-blind study, larazotide acetate prevented the 70% increase in intestinal permeability seen with gluten challenge
- KPV is a tripeptide fragment of alpha-MSH that reduces gut inflammation and was shown to promote gut healing in mice with IBD
- BPC-157 is a 15-amino-acid peptide from gastric juice that supports gut barrier integrity, tight junctions, and protects against NSAID damage
- BPC-157 is more versatile than gut-specific peptides -- also used for wound, burn, muscle, tendon, and ligament healing
- Many people with Crohn's or IBS have explored BPC-157 for its protective and anti-inflammatory properties
- BPC-157 may be synergistic with stem cell therapies for gut repair
- Gluten triggers zonulin release via gliadin, which rearranges the cytoskeleton and disassembles tight junction proteins
Key Moments
Larazotide acetate blocks zonulin to prevent leaky gut from gluten
Larazotide acetate (AT-1001) acts as a zonulin receptor antagonist, preventing tight junction opening. In a randomized double-blind study, placebo patients had a 70% increase in intestinal permeability after a gluten challenge, while those on larazotide had no change.
"So, lerozootide acetate acts as a zonulin receptor antagonist, which means that it will bind to the same receptors that zonulin would typically bind to, but it will not trigger the same effects as zonulin. So, by basically occupying those receptors, lerozootide will prevent zonulin from binding and block its action."
KPV peptide reduces gut inflammation as a fragment of alpha-MSH
KPV is a tripeptide derived from alpha-MSH, a neurohormone produced by the pituitary gland. Scientists studied its effects on irritable bowel disease in mice and found a reduction in gut inflammation with evidence of overall gut healing.
"These scientists got creative and decided to study the effects of KPV on irritable bowel disease in mice. And following the study, they did find a reduction in gut inflammation accompanied by evidence of overall gut healing."
BPC-157 supports gut barrier integrity, protects against ulcers and NSAID damage
BPC-157 is a 15-amino-acid peptide from human gastric juice that studies show is protective against stomach ulcers, may counteract NSAID damage, can lower intestinal inflammation, and support gut lining integrity. Many individuals with Crohn's or IBS have explored it.
"This peptide is composed of 15 amino acids, and it's a partial sequence of the body protection compound that was discovered in and isolated from human gastric juice."
BPC-157 may be synergistic with stem cell therapies for gut repair
Chloe discusses how individuals are exploring the combination of BPC-157 with intestinal stem cell support or stem cell treatments for gut repair, noting that while not yet studied in combination, they appear logistically synergistic for repairing damage.
"I've seen lots of individuals explore the synergy between supporting intestinal stem cells and or doing an actual stem cell treatment and using BPC-157."
