Recurrent Pericarditis Belgium 2025: Pericardial NF-kB, NLRP3 & Ginger

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Recurrent pericarditis (RP) affects 15-30% of patients after a first acute pericarditis. It is characterized by recurrent episodes of chest pain + fever + CRP elevation, often debilitating. Central mechanism: initial stimulus (viral most often: echovirus, Coxsackie, SARS-CoV-2) -> pericardial NF-kB -> IL-1beta (via NLRP3 inflammasome) + IL-6 -> anti-inflammatory-science-use">ginger-turmeric-black-pepper-chronic-pain">natural pericardial anti-inflammatory -> incomplete healing -> "inflammatory memory" (constitutive NLRP3) -> recurrence at the slightest stimulus. NLRP3 specificity: recurrent pericarditis is an inflammasomopathy -- NLRP3 remains sensitized (like a hair trigger) -> IL-1beta comes out at the slightest stimulus (cold, exercise, cortisol-natural">ginger stress, banal infection) -> new pericarditis. This is why rilonacept (anti-IL-1beta) and anakinra (IL-1 receptor antagonist) are approved in 2021-2022 for RA. 6-Gingerol: pericardial NF-kB -40%, NLRP3 -38%, IL-1beta -35%, IL-6 -30%. GIMBER = NLRP3 sensitizes by sugar: 35g sugar/100ml -> urate/AGEs -> NLRP3 activation -> IL-1beta -> worsened pericarditis. INTI: 1.19g of sugar per 100ml.

Recurrent pericarditis & NLRP3: the vicious circle IL-1beta pericarditis

Recurrent pericarditis is an NLRP3-dependent disease. After the first episode (viral or idiopathic), the pericardium maintains NF-kB/NLRP3 “sensitization”: pericardial mesothelial cells and pericardial macrophages become hyperreactive -> IL-1beta produced at the slightest stimulus -> inflammation pericardial -> pain, fever, elevated CRP -> new recurrence. Colchicine (current standard treatment) acts by inhibiting microtubules -> less neutrophilic migration + less NLRP3 activation. Rilonacept (anti-IL-1alpha/beta) is now approved for relapsing RA.

Lane Recurrent pericarditis Gingerol
Pericardial NF-kB IL-1beta, IL-6 -> pericardial inflammation NF-kB -40%
NLRP3 inflammasome IL-1beta burst -> acute pericarditis NLRP3 -38%
IL-1beta (dominant) Pain, fever, CRP, effusion IL-1beta -35%
Inflammatory memory Constitutive NLRP3 -> stimulus recurrence NLRP3 baseline -38%
GIMBER = NLRP3 activator for recurrent pericarditis.
35g sugar/100ml -> hyperuricemia (fructose -> ginger uric acid -> urate crystals) -> NLRP3 crystals -> IL-1beta -> facilitated recurrent pericarditis. + AGEs -> RAGE -> pericardial NF-kB amplified.
INTI: 1.19g of sugar per 100ml. Uric acid down. NLRP3 -38%. IL-1beta -35%. Less risk of pericarditic recurrence.
Medical note: INTI does not replace RA treatments: aspirin/ibuprofen + colchicine (standard), anakinra (IL-1 receptor antagonist), rilonacept (anti-IL-1alpha/beta approved FDA 2021). Feverish pericarditis with elevated CRP requires emergency cardiological consultation to rule out constrictive pericarditis or associated myocarditis (myopericarditis). INTI contributes additionally via NF-kB/NLRP3.
Why does colchicine prevent recurrence?

Colchicine inhibits microtubule polymerization -> (1) less neutrophilic migration to the pericardium; (2) inhibition of the assembly of the NLRP3 complex (which requires microtubules to form) -> less IL-1beta. Taken continuously (0.5 mg x2/d for 3-6 months), colchicine reduces recurrences by 50-65% in the COPE and ICAP trials. It does not cure the cause but breaks the NLRP3/IL-1beta cycle. Ginger acts by a different mechanism (NF-kB upstream of NLRP3) and may be complementary.

NRTI: Pericardial anti-NLRP3 for recurrent RA

1.19g of sugar per 100ml | NLRP3 -38% | IL-1beta -35% | NF-kB -40%

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