What Is Chronic Inflammatory Response Syndrome (CIRS)?

Chronic Inflammatory Response Syndrome (CIRS) is a progressive, multi-system illness resulting from a sustained inflammatory reaction to biotoxins. This condition is an immune system dysfunction where the body fails to properly clear specific foreign compounds. The resulting inflammation affects nearly every organ system, leading to a wide range of debilitating symptoms.

Understanding Chronic Inflammatory Response Syndrome

CIRS is fundamentally a disorder of the innate immune system, constantly triggered by biotoxins that the body cannot eliminate. Biotoxins are toxic substances produced by biological organisms, most commonly found in water-damaged buildings (WDB). Exposure to mold, mycotoxins, bacteria, and microbial volatile organic compounds in these environments can initiate the illness.

Other biotoxin sources include toxins from Lyme disease and its co-infections, dinoflagellates (ciguatera), and certain blue-green algae. The illness requires a specific genetic predisposition that prevents clearance. Only about 25% of the population possesses the Human Leukocyte Antigen (HLA-DR) genes that make them susceptible to CIRS.

In susceptible individuals, HLA-DR molecules on immune cells cannot adequately bind to and “tag” biotoxins for removal by the adaptive immune system. Since the toxins are not cleared, they remain in circulation, constantly stimulating the innate immune system to release inflammatory chemical messengers called cytokines. This failure to resolve inflammation leads to a chronic, self-perpetuating cycle that damages multiple body systems.

The Multi-Systemic Nature of CIRS Symptoms

The persistent inflammatory state caused by recirculating biotoxins results in a vast array of symptoms affecting multiple systems simultaneously. Cognitive and neurological issues are common, often described as “brain fog.” Patients frequently experience problems with memory, difficulty concentrating, and impaired word-finding ability.

Profound, unrelenting fatigue is a common complaint and does not improve with rest. This fatigue is often accompanied by musculoskeletal symptoms, including generalized body aches, joint pain, muscle cramps, and morning stiffness. Sensations like numbness, tingling, and unusual sensitivity to static electric shocks are also reported.

CIRS also causes significant metabolic and hormonal dysregulation. Patients may experience problems with temperature control, leading to excessive sweating or feeling unusually cold, excessive thirst, and increased urinary frequency. Unexplained weight changes and chronic static headaches that do not respond to typical treatments are further manifestations.

Sensory and gastrointestinal systems are frequently impacted. Sensitivity to light and sound is common, and some individuals report chronic sinus congestion or shortness of breath. Digestive issues such as chronic diarrhea, abdominal pain, and symptoms similar to Irritable Bowel Syndrome are often present.

Identifying CIRS Through Specific Diagnostic Tools

Diagnosis of CIRS relies on clinical history, specific testing, and the presence of a characteristic set of symptoms. Assessment begins by establishing a history of exposure to a known biotoxin trigger and confirming symptoms spanning multiple functional clusters.

The initial screening tool is the Visual Contrast Sensitivity (VCS) test, which measures the ability to distinguish between shades of gray. Failure on the VCS test is often an indicator of neurotoxicity caused by biotoxins affecting neurological function. This screening is followed by specialized blood work to measure a panel of inflammatory and regulatory biomarkers.

Biomarkers tested include C4a, a complement cascade protein that is often elevated, and Transforming Growth Factor-beta 1 (TGF-beta 1), a pro-inflammatory cytokine. Other markers frequently tested are Melanocyte Stimulating Hormone (MSH), which is usually low and involved in regulating pain and inflammation, and Vascular Endothelial Growth Factor (VEGF), which can be reduced, indicating poor blood flow. Abnormalities in Antidiuretic Hormone (ADH) and plasma Osmolality are also monitored, reflecting dysregulation of water and electrolyte balance. Environmental testing, such as an ERMI or HERTSMI-2 test, confirms the presence of toxigenic mold in the patient’s environment, linking exposure to the clinical presentation.

Core Components of CIRS Treatment and Management

Management of CIRS follows a systematic, sequential protocol designed to eliminate the biotoxin source and reverse inflammatory damage. The first step is avoidance of the toxic environment, as no other treatment succeeds while exposure continues. This requires professional assessment and remediation of water-damaged buildings to remove mold and other microbial agents.

Once the source is removed, the next phase involves using prescription binders to remove recirculating biotoxins. Binders, such as Cholestyramine (CSM) or Colesevelam (Welchol), attach to biotoxins in the gut, preventing reabsorption and facilitating excretion through the stool. Cholestyramine is considered the most effective binder for lowering the overall toxic load.

Subsequent steps address complications such as the colonization of nasal passages by Multiple Antibiotic Resistant Coagulase Negative Staphylococci (MARCoNS). If present, this colonization must be eradicated before proceeding with further treatment. Once the toxic load is reduced and colonization is managed, the focus shifts to correcting remaining physiological abnormalities identified through biomarker testing.

This final phase involves targeted treatments to normalize hormones and inflammatory mediators, such as correcting low MSH and ADH levels. The goal is to restore the body’s internal regulatory systems, often using specific medications like Vasoactive Intestinal Polypeptide (VIP) nasal spray, which can help normalize levels of MSH, VEGF, and TGF-beta 1. This structured, step-by-step approach is necessary because each intervention builds upon the success of the previous one.