.png)
Research
Reframing Inflammatory Bowel Disease as a Subset of Chronic Inflammatory Response Syndrome: The Role of Biotoxin-Induced Innate Immune Dysfunction
Author: Alli Manzella, CIRS-Literate FNTP, Environmental Health Specialist
Co-Founder, Root Cause for Crohn’s & Colitis
Date: June 2025
Background: Inflammatory Bowel Disease (IBD) is traditionally framed as a chronic, idiopathic autoimmune disorder. Despite advancements in therapeutics, unmedicated remission remains elusive, suggesting an incomplete pathophysiologic model.
​
Objective: To synthesize clinical and molecular evidence supporting the concept that a subset of Inflammatory Bowel Disease reflects underlying innate immune dysregulation in HLA-susceptible individuals, often presenting within the clinical framework of Chronic Inflammatory Response Syndrome (CIRS) following environmental exposures. This is characterized by impaired immune regulation, loss of barrier integrity, disruption of mucosal immunity, and secondary microbiome destabilization.
Rethinking CIRS: Innate Immune Dysregulation as the Upstream Driver Beyond Inflammation and Genetic Susceptibility
Author: Alli Manzella, CIRS-Literate FNTP, Environmental Health Specialist
Co-Founder, Root Cause for Crohn’s & Colitis
Date: May 2025
Introduction
​
Chronic Inflammatory Response Syndrome (CIRS) is widely recognized as a multisystem illness triggered by biotoxin exposure in genetically susceptible individuals, particularly those carrying specific HLA-DR/DQ haplotypes. Current clinical paradigms emphasize persistent innate immune activation and inflammation as defining features of this condition. However, this framework may be incomplete.
​
While inflammation is a prominent clinical feature, it does not fully explain the persistence, variability, and multisystem nature of disease observed in many patients. In particular, it remains unclear why certain individuals fail to resolve immune activation following exposure, while others recover.
​
Emerging research and clinical observations suggest that impaired regulation of innate immune function may underlie this failure of resolution. This dysfunction appears particularly evident in individuals carrying HLA-DR4-3-53 and DR11-3-52B haplotypes, which are associated with altered antigen presentation and impaired immune recovery following exposure.
​
In this context, the host loses the capacity to appropriately regulate recognition, clearance, and recovery processes, resulting in a state of persistent innate immune dysregulation. Within this framework, inflammation, immune exhaustion, and ongoing sensitivity to environmental and endogenous triggers emerge as downstream consequences rather than primary drivers of disease.
Let’s Work Together
Feel free to reach out with questions or collaborations.
