EPISODE · Aug 8, 2025 · 14 MIN
191. The Gut-Immune Axis | Intestinal Secretory IgA, Lactoferrin, and Lactoferrin Levels
from The Synthesis of Wellness® · host Chloe Porter
In this encore episode, we detail the gut-immune axis, focusing on the protective mucus layer and the roles of secretory immunoglobulin A and lactoferrin in intestinal health. We discuss endogenous secretions as well as highlight lactoferrin testing and levels. Topics: 1. The Intestinal Barrier & Mucus Layer- The intestinal lumen, microbiome, mucus layer, epithelial cells, and lamina propria.- The mucus layer: antimicrobial peptides (AMPs) and secretory IgA (sIgA).- Intestinal epithelial cells including goblet cells and enterocytes.2. Immune Cells in the Gut- The lamina propria.- Macrophages, dendritic cells, neutrophils, B cells, T cells, mast cells, and more.3. Antimicrobial Peptides & Secretory IgA- AMPs and sIgA in the mucus layer aid in regulating microbial balance and pathogen adhesion.4. Lactoferrin: Functions & Sources- Iron-binding glycoprotein, antimicrobial and immunomodulatory properties.- Found in mucosal secretions, colostrum, and more.- Intestinal epithelial cells (IECs) and neutrophils.5. Lactoferrin’s Role in Intestinal Health- Regulates iron absorption via lactoferrin receptors (LFR)on enterocytes.- Sequesters free iron, limiting bacterial growth, bacteriostatic.- Destabilizes bacterial membranes, cell lysis, bactericidal.6. Lactoferrin Levels- Neutrophils release lactoferrin during infection,increasing its presence in the large intestine.- Fecal lactoferrin levels.- Fecal calprotectin levels.7. Candida Overgrowth8. Lactoferrin Supplementation to Support the Gut9. Conclusion- The intestinal mucus layer.- Lactoferrin.Thank you to our episode sponsor: 1. OmneDiem®'s Histamine Digest® and Histamine Digest® PureMAX 2. Histamine Digest® Histamine Complete with DAO, Vitamin C, Quercetin, Bromelain, and Stinging Nettle Root Extract.Thanks for tuning in!Get Chloe's Book Today! "75 Gut-Healing Strategies & Biohacks" Follow Chloe on Instagram @synthesisofwellnessVisit synthesisofwellness.com
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191. The Gut-Immune Axis | Intestinal Secretory IgA, Lactoferrin, and Lactoferrin Levels
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