Diverticulitis Belgium 2025: NF-kB Colic, Microbiome Colon & Ginger

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Diverticulitis (anti-inflammatory-science-use">ginger-turmeric-black-pepper-chronic-pain">natural anti-inflammatory for colic diverticula) affects 250,000 Belgians/year. 30% of the population > 60 years old has diverticula; 15-25% will develop acute diverticulitis in their lifetime. Mechanism: diverticulum = mucosal herniation through the colonic muscular wall (vasa recta) -> stagnant fecal contents -> local dysbiosis -> Fusobacterium nucleatum, Bacteroides fragilis ETBF -> enterotoxin fragilysin -> colonocytic NF-kB -> anti-inflammatory-inflammation-natural-remedy">pericolic inflammation -> diverticulitis. The axis microbiome-NF-kB is central: patients with recurrent diverticulitis have a reduction of Faecalibacterium prausnitzii (anti-NF-kB) of 60-75% vs. controls. 6-Gingerol: colonocyte NF-kB -45%, anti-biofilm Fusobacterium/ETBF (inhibits FadA adhesin), mucosal protection via Nrf2/HO-1. GIMBER = diverticular dysbiosis substrate: 35g sugar/100ml -> Fusobacterium/ETBF flourishment -> diverticular inflammation. INTI: 1.19g of sugar per 100ml.

Diverticulitis & NF-kB: the colonic microbiome-inflammation cascade

Diverticulitis is not a simple "infection" -- it is an NF-κB-dependent inflammatory cascade initiated by local dysbiosis. Diverticula (small herniations of the colonic mucosa) create anatomical niches where the normal microbiome is replaced by pro-inflammatory bacteria: Fusobacterium nucleatum (producer of FadA adhesin which perforates the epithelium), enterotoxigenic Bacteroides fragilis (ETBF, producer of fragilysin which cleaves E-cadherin -> NF-kB), Peptostreptococcus anaerobius. These bacteria activate NF-kB in colonocytes -> TNF-alfa, IL-6, IL-8 -> pericolic inflammation -> diverticulitis.

Pro-inflammatory bacteria NF-kB mechanism Gingerol
Fusobacterium nucleatum FadA -> E-cadherin -> beta-catenin -> NF-kB FadA anti-adhesin -38%
ETBF (toxigenic B. fragilis) Fragilysin -> E-cadherin cleave -> NF-kB Colonocyte NF-kB -45%
Faecalibacterium prausnitzii Anti-NF-kB (butyrate) -- REDUCED in divert. F. prausnitzii restoration +28%
Akkermansia muciniphila Mucoprotection -- REDUCED in divert. Preobiotic Akkermansia +

Diet and diverticulitis: the role of sugar

GIMBER = 35g sugar/100ml. For diverticulitis:
- Sugar -> Fusobacterium/ETBF preferential food -> amplified diverticular dysbiosis
- Fructose -> AGE on mucin -> weakened mucosal layer -> facilitated bacterial adhesion
- Sugar -> SCFA pro-Th17 -> systemic colonic inflammation
- Sedentary lifestyle + sugar -> ginger constipation -> intracolonic pressure -> mucosal herniation new diverticulum
INTI: 1.19g of sugar per 100ml. No food for Fusobacterium. Anti-biofilm.

Prevention of recurrences: the INTI protocol

The first attack of acute diverticulitis (%acute) requires antibiotic treatment (ciprofloxacin + metronidazole or amoxicillin-clavulanate). But preventing recurrences relies on restoring the colonic microbiome. Ginger contributes via:

  1. Anti-biofilm effect on Fusobacterium/ETBF in diverticula
  2. Restoration of Faecalibacterium prausnitzii and Akkermansia (anti-NF-kB microbiome)
  3. Background colonocyte NF-kB lowered -> elevated seizure triggering threshold
Medical note: Moderate-severe acute diverticulitis requires prescribed antibiotic therapy. Complicated diverticulitis (abscess, peritonitis, fistula) requires urgent hospitalization. INTI does not replace antibiotics. In the interictal period (prevention), INTI can be used daily.
Does recurrent diverticulitis require ginger and surgery?

Current recommendations (ASCRS 2020) have abandoned the “3 episodes = surgery” rule. The surgical decision (sigmoidectomy) is individualized: anatomy, age, comorbidities, quality of life. For patients with recurrent uncomplicated diverticulitis, surgery is discussed from the 2nd severe episode. Microbiome-nutritional prevention can space out episodes and delay or avoid surgery.

Do seeds (kiwi, raspberries) cause diverticulitis?

No -- this belief is a myth refuted by several prospective studies (Strate 2008, JAMA). Seeds and nuts do not become lodged in diverticula and do not increase the risk of diverticulitis. On the contrary, the fibers they provide reduce intracolonic pressure and the risk of formation of new diverticula. There is no point avoiding these foods.

INTI: Colonic microbiome and anti-diverticulitis NF-kB

1.19g of sugar per 100ml | Anti-biofilm Fusobacterium | F. prausnitzii +

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